/**
 * @license
 * Copyright 2019 Google LLC
 * SPDX-License-Identifier: BSD-3-Clause
 */
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/**
 * @license
 * Copyright 2017 Google LLC
 * SPDX-License-Identifier: BSD-3-Clause
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/**
 * @license
 * Copyright 2017 Google LLC
 * SPDX-License-Identifier: BSD-3-Clause
 */
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t.setFromMatrix3Column(this,0),e.setFromMatrix3Column(this,1),i.setFromMatrix3Column(this,2),this}setFromMatrix4(t){const e=t.elements;return this.set(e[0],e[4],e[8],e[1],e[5],e[9],e[2],e[6],e[10]),this}multiply(t){return this.multiplyMatrices(this,t)}premultiply(t){return this.multiplyMatrices(t,this)}multiplyMatrices(t,e){const i=t.elements,n=e.elements,s=this.elements,r=i[0],a=i[3],o=i[6],l=i[1],c=i[4],h=i[7],u=i[2],d=i[5],p=i[8],A=n[0],m=n[3],g=n[6],f=n[1],v=n[4],b=n[7],y=n[2],x=n[5],_=n[8];return s[0]=r*A+a*f+o*y,s[3]=r*m+a*v+o*x,s[6]=r*g+a*b+o*_,s[1]=l*A+c*f+h*y,s[4]=l*m+c*v+h*x,s[7]=l*g+c*b+h*_,s[2]=u*A+d*f+p*y,s[5]=u*m+d*v+p*x,s[8]=u*g+d*b+p*_,this}multiplyScalar(t){const e=this.elements;return e[0]*=t,e[3]*=t,e[6]*=t,e[1]*=t,e[4]*=t,e[7]*=t,e[2]*=t,e[5]*=t,e[8]*=t,this}determinant(){const t=this.elements,e=t[0],i=t[1],n=t[2],s=t[3],r=t[4],a=t[5],o=t[6],l=t[7],c=t[8];return e*r*c-e*a*l-i*s*c+i*a*o+n*s*l-n*r*o}invert(){const t=this.elements,e=t[0],i=t[1],n=t[2],s=t[3],r=t[4],a=t[5],o=t[6],l=t[7],c=t[8],h=c*r-a*l,u=a*o-c*s,d=l*s-r*o,p=e*h+i*u+n*d;if(0===p)return this.set(0,0,0,0,0,0,0,0,0);const A=1/p;return t[0]=h*A,t[1]=(n*l-c*i)*A,t[2]=(a*i-n*r)*A,t[3]=u*A,t[4]=(c*e-n*o)*A,t[5]=(n*s-a*e)*A,t[6]=d*A,t[7]=(i*o-l*e)*A,t[8]=(r*e-i*s)*A,this}transpose(){let t;const e=this.elements;return t=e[1],e[1]=e[3],e[3]=t,t=e[2],e[2]=e[6],e[6]=t,t=e[5],e[5]=e[7],e[7]=t,this}getNormalMatrix(t){return this.setFromMatrix4(t).invert().transpose()}transposeIntoArray(t){const e=this.elements;return t[0]=e[0],t[1]=e[3],t[2]=e[6],t[3]=e[1],t[4]=e[4],t[5]=e[7],t[6]=e[2],t[7]=e[5],t[8]=e[8],this}setUvTransform(t,e,i,n,s,r,a){const o=Math.cos(s),l=Math.sin(s);return this.set(i*o,i*l,-i*(o*r+l*a)+r+t,-n*l,n*o,-n*(-l*r+o*a)+a+e,0,0,1),this}scale(t,e){return this.premultiply(ti.makeScale(t,e)),this}rotate(t){return this.premultiply(ti.makeRotation(-t)),this}translate(t,e){return this.premultiply(ti.makeTranslation(t,e)),this}makeTranslation(t,e){return t.isVector2?this.set(1,0,t.x,0,1,t.y,0,0,1):this.set(1,0,t,0,1,e,0,0,1),this}makeRotation(t){const e=Math.cos(t),i=Math.sin(t);return this.set(e,-i,0,i,e,0,0,0,1),this}makeScale(t,e){return this.set(t,0,0,0,e,0,0,0,1),this}equals(t){const e=this.elements,i=t.elements;for(let t=0;t<9;t++)if(e[t]!==i[t])return!1;return!0}fromArray(t,e=0){for(let i=0;i<9;i++)this.elements[i]=t[i+e];return this}toArray(t=[],e=0){const i=this.elements;return t[e]=i[0],t[e+1]=i[1],t[e+2]=i[2],t[e+3]=i[3],t[e+4]=i[4],t[e+5]=i[5],t[e+6]=i[6],t[e+7]=i[7],t[e+8]=i[8],t}clone(){return(new this.constructor).fromArray(this.elements)}}const ti=new Ze;function ei(t){for(let e=t.length-1;e>=0;--e)if(t[e]>=65535)return!0;return!1}function ii(t){return document.createElementNS("http://www.w3.org/1999/xhtml",t)}function ni(){const t=ii("canvas");return t.style.display="block",t}const si={};function ri(t){t in si||(si[t]=!0,console.warn(t))}const ai=(new Ze).set(.4123908,.3575843,.1804808,.212639,.7151687,.0721923,.0193308,.1191948,.9505322),oi=(new Ze).set(3.2409699,-1.5373832,-.4986108,-.9692436,1.8759675,.0415551,.0556301,-.203977,1.0569715);function li(){const t={enabled:!0,workingColorSpace:Se,spaces:{},convert:function(t,e,i){return!1!==this.enabled&&e!==i&&e&&i?(this.spaces[e].transfer===we&&(t.r=hi(t.r),t.g=hi(t.g),t.b=hi(t.b)),this.spaces[e].primaries!==this.spaces[i].primaries&&(t.applyMatrix3(this.spaces[e].toXYZ),t.applyMatrix3(this.spaces[i].fromXYZ)),this.spaces[i].transfer===we&&(t.r=ui(t.r),t.g=ui(t.g),t.b=ui(t.b)),t):t},fromWorkingColorSpace:function(t,e){return this.convert(t,this.workingColorSpace,e)},toWorkingColorSpace:function(t,e){return this.convert(t,e,this.workingColorSpace)},getPrimaries:function(t){return this.spaces[t].primaries},getTransfer:function(t){return t===_e?Ce:this.spaces[t].transfer},getLuminanceCoefficients:function(t,e=this.workingColorSpace){return t.fromArray(this.spaces[e].luminanceCoefficients)},define:function(t){Object.assign(this.spaces,t)},_getMatrix:function(t,e,i){return t.copy(this.spaces[e].toXYZ).multiply(this.spaces[i].fromXYZ)},_getDrawingBufferColorSpace:function(t){return this.spaces[t].outputColorSpaceConfig.drawingBufferColorSpace},_getUnpackColorSpace:function(t=this.workingColorSpace){return this.spaces[t].workingColorSpaceConfig.unpackColorSpace}},e=[.64,.33,.3,.6,.15,.06],i=[.2126,.7152,.0722],n=[.3127,.329];return t.define({[Se]:{primaries:e,whitePoint:n,transfer:Ce,toXYZ:ai,fromXYZ:oi,luminanceCoefficients:i,workingColorSpaceConfig:{unpackColorSpace:Ee},outputColorSpaceConfig:{drawingBufferColorSpace:Ee}},[Ee]:{primaries:e,whitePoint:n,transfer:we,toXYZ:ai,fromXYZ:oi,luminanceCoefficients:i,outputColorSpaceConfig:{drawingBufferColorSpace:Ee}}}),t}const ci=li();function hi(t){return t<.04045?.0773993808*t:Math.pow(.9478672986*t+.0521327014,2.4)}function ui(t){return t<.0031308?12.92*t:1.055*Math.pow(t,.41666)-.055}let di;class pi{static getDataURL(t){if(/^data:/i.test(t.src))return t.src;if("undefined"==typeof HTMLCanvasElement)return t.src;let e;if(t instanceof HTMLCanvasElement)e=t;else{void 0===di&&(di=ii("canvas")),di.width=t.width,di.height=t.height;const i=di.getContext("2d");t instanceof ImageData?i.putImageData(t,0,0):i.drawImage(t,0,0,t.width,t.height),e=di}return e.toDataURL("image/png")}static sRGBToLinear(t){if("undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&t instanceof ImageBitmap){const e=ii("canvas");e.width=t.width,e.height=t.height;const i=e.getContext("2d");i.drawImage(t,0,0,t.width,t.height);const n=i.getImageData(0,0,t.width,t.height),s=n.data;for(let t=0;t<s.length;t++)s[t]=255*hi(s[t]/255);return i.putImageData(n,0,0),e}if(t.data){const e=t.data.slice(0);for(let t=0;t<e.length;t++)e instanceof Uint8Array||e instanceof Uint8ClampedArray?e[t]=Math.floor(255*hi(e[t]/255)):e[t]=hi(e[t]);return{data:e,width:t.width,height:t.height}}return console.warn("THREE.ImageUtils.sRGBToLinear(): Unsupported image type. No color space conversion applied."),t}}let Ai=0;class mi{constructor(t=null){this.isSource=!0,Object.defineProperty(this,"id",{value:Ai++}),this.uuid=We(),this.data=t,this.dataReady=!0,this.version=0}set needsUpdate(t){!0===t&&this.version++}toJSON(t){const e=void 0===t||"string"==typeof t;if(!e&&void 0!==t.images[this.uuid])return t.images[this.uuid];const i={uuid:this.uuid,url:""},n=this.data;if(null!==n){let t;if(Array.isArray(n)){t=[];for(let e=0,i=n.length;e<i;e++)n[e].isDataTexture?t.push(gi(n[e].image)):t.push(gi(n[e]))}else t=gi(n);i.url=t}return e||(t.images[this.uuid]=i),i}}function gi(t){return"undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&t instanceof ImageBitmap?pi.getDataURL(t):t.data?{data:Array.from(t.data),width:t.width,height:t.height,type:t.data.constructor.name}:(console.warn("THREE.Texture: Unable to serialize Texture."),{})}let fi=0,vi=class t extends ke{constructor(e=t.DEFAULT_IMAGE,i=t.DEFAULT_MAPPING,n=1001,s=1001,r=1006,a=1008,o=1023,l=1009,c=t.DEFAULT_ANISOTROPY,h=""){super(),this.isTexture=!0,Object.defineProperty(this,"id",{value:fi++}),this.uuid=We(),this.name="",this.source=new mi(e),this.mipmaps=[],this.mapping=i,this.channel=0,this.wrapS=n,this.wrapT=s,this.magFilter=r,this.minFilter=a,this.anisotropy=c,this.format=o,this.internalFormat=null,this.type=l,this.offset=new $e(0,0),this.repeat=new $e(1,1),this.center=new $e(0,0),this.rotation=0,this.matrixAutoUpdate=!0,this.matrix=new Ze,this.generateMipmaps=!0,this.premultiplyAlpha=!1,this.flipY=!0,this.unpackAlignment=4,this.colorSpace=h,this.userData={},this.version=0,this.onUpdate=null,this.renderTarget=null,this.isRenderTargetTexture=!1,this.pmremVersion=0}get image(){return this.source.data}set image(t=null){this.source.data=t}updateMatrix(){this.matrix.setUvTransform(this.offset.x,this.offset.y,this.repeat.x,this.repeat.y,this.rotation,this.center.x,this.center.y)}clone(){return(new this.constructor).copy(this)}copy(t){return this.name=t.name,this.source=t.source,this.mipmaps=t.mipmaps.slice(0),this.mapping=t.mapping,this.channel=t.channel,this.wrapS=t.wrapS,this.wrapT=t.wrapT,this.magFilter=t.magFilter,this.minFilter=t.minFilter,this.anisotropy=t.anisotropy,this.format=t.format,this.internalFormat=t.internalFormat,this.type=t.type,this.offset.copy(t.offset),this.repeat.copy(t.repeat),this.center.copy(t.center),this.rotation=t.rotation,this.matrixAutoUpdate=t.matrixAutoUpdate,this.matrix.copy(t.matrix),this.generateMipmaps=t.generateMipmaps,this.premultiplyAlpha=t.premultiplyAlpha,this.flipY=t.flipY,this.unpackAlignment=t.unpackAlignment,this.colorSpace=t.colorSpace,this.renderTarget=t.renderTarget,this.isRenderTargetTexture=t.isRenderTargetTexture,this.userData=JSON.parse(JSON.stringify(t.userData)),this.needsUpdate=!0,this}toJSON(t){const e=void 0===t||"string"==typeof t;if(!e&&void 0!==t.textures[this.uuid])return t.textures[this.uuid];const i={metadata:{version:4.6,type:"Texture",generator:"Texture.toJSON"},uuid:this.uuid,name:this.name,image:this.source.toJSON(t).uuid,mapping:this.mapping,channel:this.channel,repeat:[this.repeat.x,this.repeat.y],offset:[this.offset.x,this.offset.y],center:[this.center.x,this.center.y],rotation:this.rotation,wrap:[this.wrapS,this.wrapT],format:this.format,internalFormat:this.internalFormat,type:this.type,colorSpace:this.colorSpace,minFilter:this.minFilter,magFilter:this.magFilter,anisotropy:this.anisotropy,flipY:this.flipY,generateMipmaps:this.generateMipmaps,premultiplyAlpha:this.premultiplyAlpha,unpackAlignment:this.unpackAlignment};return Object.keys(this.userData).length>0&&(i.userData=this.userData),e||(t.textures[this.uuid]=i),i}dispose(){this.dispatchEvent({type:"dispose"})}transformUv(t){if(this.mapping!==et)return t;if(t.applyMatrix3(this.matrix),t.x<0||t.x>1)switch(this.wrapS){case at:t.x=t.x-Math.floor(t.x);break;case ot:t.x=t.x<0?0:1;break;case lt:1===Math.abs(Math.floor(t.x)%2)?t.x=Math.ceil(t.x)-t.x:t.x=t.x-Math.floor(t.x)}if(t.y<0||t.y>1)switch(this.wrapT){case at:t.y=t.y-Math.floor(t.y);break;case ot:t.y=t.y<0?0:1;break;case lt:1===Math.abs(Math.floor(t.y)%2)?t.y=Math.ceil(t.y)-t.y:t.y=t.y-Math.floor(t.y)}return this.flipY&&(t.y=1-t.y),t}set needsUpdate(t){!0===t&&(this.version++,this.source.needsUpdate=!0)}set needsPMREMUpdate(t){!0===t&&this.pmremVersion++}};vi.DEFAULT_IMAGE=null,vi.DEFAULT_MAPPING=et,vi.DEFAULT_ANISOTROPY=1;class bi{constructor(t=0,e=0,i=0,n=1){bi.prototype.isVector4=!0,this.x=t,this.y=e,this.z=i,this.w=n}get width(){return this.z}set width(t){this.z=t}get height(){return this.w}set height(t){this.w=t}set(t,e,i,n){return this.x=t,this.y=e,this.z=i,this.w=n,this}setScalar(t){return this.x=t,this.y=t,this.z=t,this.w=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setZ(t){return this.z=t,this}setW(t){return this.w=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;case 2:this.z=e;break;case 3:this.w=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;case 2:return this.z;case 3:return this.w;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y,this.z,this.w)}copy(t){return this.x=t.x,this.y=t.y,this.z=t.z,this.w=void 0!==t.w?t.w:1,this}add(t){return this.x+=t.x,this.y+=t.y,this.z+=t.z,this.w+=t.w,this}addScalar(t){return this.x+=t,this.y+=t,this.z+=t,this.w+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this.z=t.z+e.z,this.w=t.w+e.w,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this.z+=t.z*e,this.w+=t.w*e,this}sub(t){return this.x-=t.x,this.y-=t.y,this.z-=t.z,this.w-=t.w,this}subScalar(t){return this.x-=t,this.y-=t,this.z-=t,this.w-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this.z=t.z-e.z,this.w=t.w-e.w,this}multiply(t){return this.x*=t.x,this.y*=t.y,this.z*=t.z,this.w*=t.w,this}multiplyScalar(t){return this.x*=t,this.y*=t,this.z*=t,this.w*=t,this}applyMatrix4(t){const e=this.x,i=this.y,n=this.z,s=this.w,r=t.elements;return this.x=r[0]*e+r[4]*i+r[8]*n+r[12]*s,this.y=r[1]*e+r[5]*i+r[9]*n+r[13]*s,this.z=r[2]*e+r[6]*i+r[10]*n+r[14]*s,this.w=r[3]*e+r[7]*i+r[11]*n+r[15]*s,this}divide(t){return this.x/=t.x,this.y/=t.y,this.z/=t.z,this.w/=t.w,this}divideScalar(t){return this.multiplyScalar(1/t)}setAxisAngleFromQuaternion(t){this.w=2*Math.acos(t.w);const e=Math.sqrt(1-t.w*t.w);return e<1e-4?(this.x=1,this.y=0,this.z=0):(this.x=t.x/e,this.y=t.y/e,this.z=t.z/e),this}setAxisAngleFromRotationMatrix(t){let e,i,n,s;const r=.01,a=.1,o=t.elements,l=o[0],c=o[4],h=o[8],u=o[1],d=o[5],p=o[9],A=o[2],m=o[6],g=o[10];if(Math.abs(c-u)<r&&Math.abs(h-A)<r&&Math.abs(p-m)<r){if(Math.abs(c+u)<a&&Math.abs(h+A)<a&&Math.abs(p+m)<a&&Math.abs(l+d+g-3)<a)return this.set(1,0,0,0),this;e=Math.PI;const t=(l+1)/2,o=(d+1)/2,f=(g+1)/2,v=(c+u)/4,b=(h+A)/4,y=(p+m)/4;return t>o&&t>f?t<r?(i=0,n=.707106781,s=.707106781):(i=Math.sqrt(t),n=v/i,s=b/i):o>f?o<r?(i=.707106781,n=0,s=.707106781):(n=Math.sqrt(o),i=v/n,s=y/n):f<r?(i=.707106781,n=.707106781,s=0):(s=Math.sqrt(f),i=b/s,n=y/s),this.set(i,n,s,e),this}let f=Math.sqrt((m-p)*(m-p)+(h-A)*(h-A)+(u-c)*(u-c));return Math.abs(f)<.001&&(f=1),this.x=(m-p)/f,this.y=(h-A)/f,this.z=(u-c)/f,this.w=Math.acos((l+d+g-1)/2),this}setFromMatrixPosition(t){const e=t.elements;return this.x=e[12],this.y=e[13],this.z=e[14],this.w=e[15],this}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this.z=Math.min(this.z,t.z),this.w=Math.min(this.w,t.w),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this.z=Math.max(this.z,t.z),this.w=Math.max(this.w,t.w),this}clamp(t,e){return this.x=qe(this.x,t.x,e.x),this.y=qe(this.y,t.y,e.y),this.z=qe(this.z,t.z,e.z),this.w=qe(this.w,t.w,e.w),this}clampScalar(t,e){return this.x=qe(this.x,t,e),this.y=qe(this.y,t,e),this.z=qe(this.z,t,e),this.w=qe(this.w,t,e),this}clampLength(t,e){const i=this.length();return this.divideScalar(i||1).multiplyScalar(qe(i,t,e))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this.w=Math.floor(this.w),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this.w=Math.ceil(this.w),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this.w=Math.round(this.w),this}roundToZero(){return this.x=Math.trunc(this.x),this.y=Math.trunc(this.y),this.z=Math.trunc(this.z),this.w=Math.trunc(this.w),this}negate(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this.w=-this.w,this}dot(t){return this.x*t.x+this.y*t.y+this.z*t.z+this.w*t.w}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)+Math.abs(this.w)}normalize(){return this.divideScalar(this.length()||1)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this.z+=(t.z-this.z)*e,this.w+=(t.w-this.w)*e,this}lerpVectors(t,e,i){return this.x=t.x+(e.x-t.x)*i,this.y=t.y+(e.y-t.y)*i,this.z=t.z+(e.z-t.z)*i,this.w=t.w+(e.w-t.w)*i,this}equals(t){return t.x===this.x&&t.y===this.y&&t.z===this.z&&t.w===this.w}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this.z=t[e+2],this.w=t[e+3],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t[e+2]=this.z,t[e+3]=this.w,t}fromBufferAttribute(t,e){return this.x=t.getX(e),this.y=t.getY(e),this.z=t.getZ(e),this.w=t.getW(e),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this.w=Math.random(),this}*[Symbol.iterator](){yield this.x,yield this.y,yield this.z,yield this.w}}class yi extends ke{constructor(t=1,e=1,i={}){super(),this.isRenderTarget=!0,this.width=t,this.height=e,this.depth=1,this.scissor=new bi(0,0,t,e),this.scissorTest=!1,this.viewport=new bi(0,0,t,e);const n={width:t,height:e,depth:1};i=Object.assign({generateMipmaps:!1,internalFormat:null,minFilter:dt,depthBuffer:!0,stencilBuffer:!1,resolveDepthBuffer:!0,resolveStencilBuffer:!0,depthTexture:null,samples:0,count:1},i);const s=new vi(n,i.mapping,i.wrapS,i.wrapT,i.magFilter,i.minFilter,i.format,i.type,i.anisotropy,i.colorSpace);s.flipY=!1,s.generateMipmaps=i.generateMipmaps,s.internalFormat=i.internalFormat,this.textures=[];const r=i.count;for(let t=0;t<r;t++)this.textures[t]=s.clone(),this.textures[t].isRenderTargetTexture=!0,this.textures[t].renderTarget=this;this.depthBuffer=i.depthBuffer,this.stencilBuffer=i.stencilBuffer,this.resolveDepthBuffer=i.resolveDepthBuffer,this.resolveStencilBuffer=i.resolveStencilBuffer,this._depthTexture=null,this.depthTexture=i.depthTexture,this.samples=i.samples}get texture(){return this.textures[0]}set texture(t){this.textures[0]=t}set depthTexture(t){null!==this._depthTexture&&(this._depthTexture.renderTarget=null),null!==t&&(t.renderTarget=this),this._depthTexture=t}get depthTexture(){return this._depthTexture}setSize(t,e,i=1){if(this.width!==t||this.height!==e||this.depth!==i){this.width=t,this.height=e,this.depth=i;for(let n=0,s=this.textures.length;n<s;n++)this.textures[n].image.width=t,this.textures[n].image.height=e,this.textures[n].image.depth=i;this.dispose()}this.viewport.set(0,0,t,e),this.scissor.set(0,0,t,e)}clone(){return(new this.constructor).copy(this)}copy(t){this.width=t.width,this.height=t.height,this.depth=t.depth,this.scissor.copy(t.scissor),this.scissorTest=t.scissorTest,this.viewport.copy(t.viewport),this.textures.length=0;for(let e=0,i=t.textures.length;e<i;e++){this.textures[e]=t.textures[e].clone(),this.textures[e].isRenderTargetTexture=!0,this.textures[e].renderTarget=this;const i=Object.assign({},t.textures[e].image);this.textures[e].source=new mi(i)}return this.depthBuffer=t.depthBuffer,this.stencilBuffer=t.stencilBuffer,this.resolveDepthBuffer=t.resolveDepthBuffer,this.resolveStencilBuffer=t.resolveStencilBuffer,null!==t.depthTexture&&(this.depthTexture=t.depthTexture.clone()),this.samples=t.samples,this}dispose(){this.dispatchEvent({type:"dispose"})}}class xi extends yi{constructor(t=1,e=1,i={}){super(t,e,i),this.isWebGLRenderTarget=!0}}class _i extends vi{constructor(t=null,e=1,i=1,n=1){super(null),this.isDataArrayTexture=!0,this.image={data:t,width:e,height:i,depth:n},this.magFilter=ct,this.minFilter=ct,this.wrapR=ot,this.generateMipmaps=!1,this.flipY=!1,this.unpackAlignment=1,this.layerUpdates=new Set}addLayerUpdate(t){this.layerUpdates.add(t)}clearLayerUpdates(){this.layerUpdates.clear()}}class Ei extends vi{constructor(t=null,e=1,i=1,n=1){super(null),this.isData3DTexture=!0,this.image={data:t,width:e,height:i,depth:n},this.magFilter=ct,this.minFilter=ct,this.wrapR=ot,this.generateMipmaps=!1,this.flipY=!1,this.unpackAlignment=1}}class Si{constructor(t=0,e=0,i=0,n=1){this.isQuaternion=!0,this._x=t,this._y=e,this._z=i,this._w=n}static slerpFlat(t,e,i,n,s,r,a){let o=i[n+0],l=i[n+1],c=i[n+2],h=i[n+3];const u=s[r+0],d=s[r+1],p=s[r+2],A=s[r+3];if(0===a)return t[e+0]=o,t[e+1]=l,t[e+2]=c,void(t[e+3]=h);if(1===a)return t[e+0]=u,t[e+1]=d,t[e+2]=p,void(t[e+3]=A);if(h!==A||o!==u||l!==d||c!==p){let t=1-a;const e=o*u+l*d+c*p+h*A,i=e>=0?1:-1,n=1-e*e;if(n>Number.EPSILON){const s=Math.sqrt(n),r=Math.atan2(s,e*i);t=Math.sin(t*r)/s,a=Math.sin(a*r)/s}const s=a*i;if(o=o*t+u*s,l=l*t+d*s,c=c*t+p*s,h=h*t+A*s,t===1-a){const t=1/Math.sqrt(o*o+l*l+c*c+h*h);o*=t,l*=t,c*=t,h*=t}}t[e]=o,t[e+1]=l,t[e+2]=c,t[e+3]=h}static multiplyQuaternionsFlat(t,e,i,n,s,r){const a=i[n],o=i[n+1],l=i[n+2],c=i[n+3],h=s[r],u=s[r+1],d=s[r+2],p=s[r+3];return t[e]=a*p+c*h+o*d-l*u,t[e+1]=o*p+c*u+l*h-a*d,t[e+2]=l*p+c*d+a*u-o*h,t[e+3]=c*p-a*h-o*u-l*d,t}get x(){return this._x}set x(t){this._x=t,this._onChangeCallback()}get y(){return this._y}set y(t){this._y=t,this._onChangeCallback()}get z(){return this._z}set z(t){this._z=t,this._onChangeCallback()}get w(){return this._w}set w(t){this._w=t,this._onChangeCallback()}set(t,e,i,n){return this._x=t,this._y=e,this._z=i,this._w=n,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._w)}copy(t){return this._x=t.x,this._y=t.y,this._z=t.z,this._w=t.w,this._onChangeCallback(),this}setFromEuler(t,e=!0){const i=t._x,n=t._y,s=t._z,r=t._order,a=Math.cos,o=Math.sin,l=a(i/2),c=a(n/2),h=a(s/2),u=o(i/2),d=o(n/2),p=o(s/2);switch(r){case"XYZ":this._x=u*c*h+l*d*p,this._y=l*d*h-u*c*p,this._z=l*c*p+u*d*h,this._w=l*c*h-u*d*p;break;case"YXZ":this._x=u*c*h+l*d*p,this._y=l*d*h-u*c*p,this._z=l*c*p-u*d*h,this._w=l*c*h+u*d*p;break;case"ZXY":this._x=u*c*h-l*d*p,this._y=l*d*h+u*c*p,this._z=l*c*p+u*d*h,this._w=l*c*h-u*d*p;break;case"ZYX":this._x=u*c*h-l*d*p,this._y=l*d*h+u*c*p,this._z=l*c*p-u*d*h,this._w=l*c*h+u*d*p;break;case"YZX":this._x=u*c*h+l*d*p,this._y=l*d*h+u*c*p,this._z=l*c*p-u*d*h,this._w=l*c*h-u*d*p;break;case"XZY":this._x=u*c*h-l*d*p,this._y=l*d*h-u*c*p,this._z=l*c*p+u*d*h,this._w=l*c*h+u*d*p;break;default:console.warn("THREE.Quaternion: .setFromEuler() encountered an unknown order: "+r)}return!0===e&&this._onChangeCallback(),this}setFromAxisAngle(t,e){const i=e/2,n=Math.sin(i);return this._x=t.x*n,this._y=t.y*n,this._z=t.z*n,this._w=Math.cos(i),this._onChangeCallback(),this}setFromRotationMatrix(t){const e=t.elements,i=e[0],n=e[4],s=e[8],r=e[1],a=e[5],o=e[9],l=e[2],c=e[6],h=e[10],u=i+a+h;if(u>0){const t=.5/Math.sqrt(u+1);this._w=.25/t,this._x=(c-o)*t,this._y=(s-l)*t,this._z=(r-n)*t}else if(i>a&&i>h){const t=2*Math.sqrt(1+i-a-h);this._w=(c-o)/t,this._x=.25*t,this._y=(n+r)/t,this._z=(s+l)/t}else if(a>h){const t=2*Math.sqrt(1+a-i-h);this._w=(s-l)/t,this._x=(n+r)/t,this._y=.25*t,this._z=(o+c)/t}else{const t=2*Math.sqrt(1+h-i-a);this._w=(r-n)/t,this._x=(s+l)/t,this._y=(o+c)/t,this._z=.25*t}return this._onChangeCallback(),this}setFromUnitVectors(t,e){let i=t.dot(e)+1;return i<Number.EPSILON?(i=0,Math.abs(t.x)>Math.abs(t.z)?(this._x=-t.y,this._y=t.x,this._z=0,this._w=i):(this._x=0,this._y=-t.z,this._z=t.y,this._w=i)):(this._x=t.y*e.z-t.z*e.y,this._y=t.z*e.x-t.x*e.z,this._z=t.x*e.y-t.y*e.x,this._w=i),this.normalize()}angleTo(t){return 2*Math.acos(Math.abs(qe(this.dot(t),-1,1)))}rotateTowards(t,e){const i=this.angleTo(t);if(0===i)return this;const n=Math.min(1,e/i);return this.slerp(t,n),this}identity(){return this.set(0,0,0,1)}invert(){return this.conjugate()}conjugate(){return this._x*=-1,this._y*=-1,this._z*=-1,this._onChangeCallback(),this}dot(t){return this._x*t._x+this._y*t._y+this._z*t._z+this._w*t._w}lengthSq(){return this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w}length(){return Math.sqrt(this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w)}normalize(){let t=this.length();return 0===t?(this._x=0,this._y=0,this._z=0,this._w=1):(t=1/t,this._x=this._x*t,this._y=this._y*t,this._z=this._z*t,this._w=this._w*t),this._onChangeCallback(),this}multiply(t){return this.multiplyQuaternions(this,t)}premultiply(t){return this.multiplyQuaternions(t,this)}multiplyQuaternions(t,e){const i=t._x,n=t._y,s=t._z,r=t._w,a=e._x,o=e._y,l=e._z,c=e._w;return this._x=i*c+r*a+n*l-s*o,this._y=n*c+r*o+s*a-i*l,this._z=s*c+r*l+i*o-n*a,this._w=r*c-i*a-n*o-s*l,this._onChangeCallback(),this}slerp(t,e){if(0===e)return this;if(1===e)return this.copy(t);const i=this._x,n=this._y,s=this._z,r=this._w;let a=r*t._w+i*t._x+n*t._y+s*t._z;if(a<0?(this._w=-t._w,this._x=-t._x,this._y=-t._y,this._z=-t._z,a=-a):this.copy(t),a>=1)return this._w=r,this._x=i,this._y=n,this._z=s,this;const o=1-a*a;if(o<=Number.EPSILON){const t=1-e;return this._w=t*r+e*this._w,this._x=t*i+e*this._x,this._y=t*n+e*this._y,this._z=t*s+e*this._z,this.normalize(),this}const l=Math.sqrt(o),c=Math.atan2(l,a),h=Math.sin((1-e)*c)/l,u=Math.sin(e*c)/l;return this._w=r*h+this._w*u,this._x=i*h+this._x*u,this._y=n*h+this._y*u,this._z=s*h+this._z*u,this._onChangeCallback(),this}slerpQuaternions(t,e,i){return this.copy(t).slerp(e,i)}random(){const t=2*Math.PI*Math.random(),e=2*Math.PI*Math.random(),i=Math.random(),n=Math.sqrt(1-i),s=Math.sqrt(i);return this.set(n*Math.sin(t),n*Math.cos(t),s*Math.sin(e),s*Math.cos(e))}equals(t){return t._x===this._x&&t._y===this._y&&t._z===this._z&&t._w===this._w}fromArray(t,e=0){return this._x=t[e],this._y=t[e+1],this._z=t[e+2],this._w=t[e+3],this._onChangeCallback(),this}toArray(t=[],e=0){return t[e]=this._x,t[e+1]=this._y,t[e+2]=this._z,t[e+3]=this._w,t}fromBufferAttribute(t,e){return this._x=t.getX(e),this._y=t.getY(e),this._z=t.getZ(e),this._w=t.getW(e),this._onChangeCallback(),this}toJSON(){return this.toArray()}_onChange(t){return this._onChangeCallback=t,this}_onChangeCallback(){}*[Symbol.iterator](){yield this._x,yield this._y,yield this._z,yield this._w}}class Ci{constructor(t=0,e=0,i=0){Ci.prototype.isVector3=!0,this.x=t,this.y=e,this.z=i}set(t,e,i){return void 0===i&&(i=this.z),this.x=t,this.y=e,this.z=i,this}setScalar(t){return this.x=t,this.y=t,this.z=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setZ(t){return this.z=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;case 2:this.z=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;case 2:return this.z;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y,this.z)}copy(t){return this.x=t.x,this.y=t.y,this.z=t.z,this}add(t){return this.x+=t.x,this.y+=t.y,this.z+=t.z,this}addScalar(t){return this.x+=t,this.y+=t,this.z+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this.z=t.z+e.z,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this.z+=t.z*e,this}sub(t){return this.x-=t.x,this.y-=t.y,this.z-=t.z,this}subScalar(t){return this.x-=t,this.y-=t,this.z-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this.z=t.z-e.z,this}multiply(t){return this.x*=t.x,this.y*=t.y,this.z*=t.z,this}multiplyScalar(t){return this.x*=t,this.y*=t,this.z*=t,this}multiplyVectors(t,e){return this.x=t.x*e.x,this.y=t.y*e.y,this.z=t.z*e.z,this}applyEuler(t){return this.applyQuaternion(Ii.setFromEuler(t))}applyAxisAngle(t,e){return this.applyQuaternion(Ii.setFromAxisAngle(t,e))}applyMatrix3(t){const e=this.x,i=this.y,n=this.z,s=t.elements;return this.x=s[0]*e+s[3]*i+s[6]*n,this.y=s[1]*e+s[4]*i+s[7]*n,this.z=s[2]*e+s[5]*i+s[8]*n,this}applyNormalMatrix(t){return this.applyMatrix3(t).normalize()}applyMatrix4(t){const e=this.x,i=this.y,n=this.z,s=t.elements,r=1/(s[3]*e+s[7]*i+s[11]*n+s[15]);return this.x=(s[0]*e+s[4]*i+s[8]*n+s[12])*r,this.y=(s[1]*e+s[5]*i+s[9]*n+s[13])*r,this.z=(s[2]*e+s[6]*i+s[10]*n+s[14])*r,this}applyQuaternion(t){const e=this.x,i=this.y,n=this.z,s=t.x,r=t.y,a=t.z,o=t.w,l=2*(r*n-a*i),c=2*(a*e-s*n),h=2*(s*i-r*e);return this.x=e+o*l+r*h-a*c,this.y=i+o*c+a*l-s*h,this.z=n+o*h+s*c-r*l,this}project(t){return this.applyMatrix4(t.matrixWorldInverse).applyMatrix4(t.projectionMatrix)}unproject(t){return this.applyMatrix4(t.projectionMatrixInverse).applyMatrix4(t.matrixWorld)}transformDirection(t){const e=this.x,i=this.y,n=this.z,s=t.elements;return this.x=s[0]*e+s[4]*i+s[8]*n,this.y=s[1]*e+s[5]*i+s[9]*n,this.z=s[2]*e+s[6]*i+s[10]*n,this.normalize()}divide(t){return this.x/=t.x,this.y/=t.y,this.z/=t.z,this}divideScalar(t){return this.multiplyScalar(1/t)}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this.z=Math.min(this.z,t.z),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this.z=Math.max(this.z,t.z),this}clamp(t,e){return this.x=qe(this.x,t.x,e.x),this.y=qe(this.y,t.y,e.y),this.z=qe(this.z,t.z,e.z),this}clampScalar(t,e){return this.x=qe(this.x,t,e),this.y=qe(this.y,t,e),this.z=qe(this.z,t,e),this}clampLength(t,e){const i=this.length();return this.divideScalar(i||1).multiplyScalar(qe(i,t,e))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this}roundToZero(){return this.x=Math.trunc(this.x),this.y=Math.trunc(this.y),this.z=Math.trunc(this.z),this}negate(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this}dot(t){return this.x*t.x+this.y*t.y+this.z*t.z}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)}normalize(){return this.divideScalar(this.length()||1)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this.z+=(t.z-this.z)*e,this}lerpVectors(t,e,i){return this.x=t.x+(e.x-t.x)*i,this.y=t.y+(e.y-t.y)*i,this.z=t.z+(e.z-t.z)*i,this}cross(t){return this.crossVectors(this,t)}crossVectors(t,e){const i=t.x,n=t.y,s=t.z,r=e.x,a=e.y,o=e.z;return this.x=n*o-s*a,this.y=s*r-i*o,this.z=i*a-n*r,this}projectOnVector(t){const e=t.lengthSq();if(0===e)return this.set(0,0,0);const i=t.dot(this)/e;return this.copy(t).multiplyScalar(i)}projectOnPlane(t){return wi.copy(this).projectOnVector(t),this.sub(wi)}reflect(t){return this.sub(wi.copy(t).multiplyScalar(2*this.dot(t)))}angleTo(t){const e=Math.sqrt(this.lengthSq()*t.lengthSq());if(0===e)return Math.PI/2;const i=this.dot(t)/e;return Math.acos(qe(i,-1,1))}distanceTo(t){return Math.sqrt(this.distanceToSquared(t))}distanceToSquared(t){const e=this.x-t.x,i=this.y-t.y,n=this.z-t.z;return e*e+i*i+n*n}manhattanDistanceTo(t){return Math.abs(this.x-t.x)+Math.abs(this.y-t.y)+Math.abs(this.z-t.z)}setFromSpherical(t){return this.setFromSphericalCoords(t.radius,t.phi,t.theta)}setFromSphericalCoords(t,e,i){const n=Math.sin(e)*t;return this.x=n*Math.sin(i),this.y=Math.cos(e)*t,this.z=n*Math.cos(i),this}setFromCylindrical(t){return this.setFromCylindricalCoords(t.radius,t.theta,t.y)}setFromCylindricalCoords(t,e,i){return this.x=t*Math.sin(e),this.y=i,this.z=t*Math.cos(e),this}setFromMatrixPosition(t){const e=t.elements;return this.x=e[12],this.y=e[13],this.z=e[14],this}setFromMatrixScale(t){const e=this.setFromMatrixColumn(t,0).length(),i=this.setFromMatrixColumn(t,1).length(),n=this.setFromMatrixColumn(t,2).length();return this.x=e,this.y=i,this.z=n,this}setFromMatrixColumn(t,e){return this.fromArray(t.elements,4*e)}setFromMatrix3Column(t,e){return this.fromArray(t.elements,3*e)}setFromEuler(t){return this.x=t._x,this.y=t._y,this.z=t._z,this}setFromColor(t){return this.x=t.r,this.y=t.g,this.z=t.b,this}equals(t){return t.x===this.x&&t.y===this.y&&t.z===this.z}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this.z=t[e+2],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t[e+2]=this.z,t}fromBufferAttribute(t,e){return this.x=t.getX(e),this.y=t.getY(e),this.z=t.getZ(e),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this}randomDirection(){const t=Math.random()*Math.PI*2,e=2*Math.random()-1,i=Math.sqrt(1-e*e);return this.x=i*Math.cos(t),this.y=e,this.z=i*Math.sin(t),this}*[Symbol.iterator](){yield this.x,yield this.y,yield this.z}}const wi=new Ci,Ii=new Si;class Mi{constructor(t=new Ci(1/0,1/0,1/0),e=new Ci(-1/0,-1/0,-1/0)){this.isBox3=!0,this.min=t,this.max=e}set(t,e){return this.min.copy(t),this.max.copy(e),this}setFromArray(t){this.makeEmpty();for(let e=0,i=t.length;e<i;e+=3)this.expandByPoint(Bi.fromArray(t,e));return this}setFromBufferAttribute(t){this.makeEmpty();for(let e=0,i=t.count;e<i;e++)this.expandByPoint(Bi.fromBufferAttribute(t,e));return this}setFromPoints(t){this.makeEmpty();for(let e=0,i=t.length;e<i;e++)this.expandByPoint(t[e]);return this}setFromCenterAndSize(t,e){const i=Bi.copy(e).multiplyScalar(.5);return this.min.copy(t).sub(i),this.max.copy(t).add(i),this}setFromObject(t,e=!1){return this.makeEmpty(),this.expandByObject(t,e)}clone(){return(new this.constructor).copy(this)}copy(t){return this.min.copy(t.min),this.max.copy(t.max),this}makeEmpty(){return this.min.x=this.min.y=this.min.z=1/0,this.max.x=this.max.y=this.max.z=-1/0,this}isEmpty(){return this.max.x<this.min.x||this.max.y<this.min.y||this.max.z<this.min.z}getCenter(t){return this.isEmpty()?t.set(0,0,0):t.addVectors(this.min,this.max).multiplyScalar(.5)}getSize(t){return this.isEmpty()?t.set(0,0,0):t.subVectors(this.max,this.min)}expandByPoint(t){return this.min.min(t),this.max.max(t),this}expandByVector(t){return this.min.sub(t),this.max.add(t),this}expandByScalar(t){return this.min.addScalar(-t),this.max.addScalar(t),this}expandByObject(t,e=!1){t.updateWorldMatrix(!1,!1);const i=t.geometry;if(void 0!==i){const n=i.getAttribute("position");if(!0===e&&void 0!==n&&!0!==t.isInstancedMesh)for(let e=0,i=n.count;e<i;e++)!0===t.isMesh?t.getVertexPosition(e,Bi):Bi.fromBufferAttribute(n,e),Bi.applyMatrix4(t.matrixWorld),this.expandByPoint(Bi);else void 0!==t.boundingBox?(null===t.boundingBox&&t.computeBoundingBox(),Ri.copy(t.boundingBox)):(null===i.boundingBox&&i.computeBoundingBox(),Ri.copy(i.boundingBox)),Ri.applyMatrix4(t.matrixWorld),this.union(Ri)}const n=t.children;for(let t=0,i=n.length;t<i;t++)this.expandByObject(n[t],e);return this}containsPoint(t){return t.x>=this.min.x&&t.x<=this.max.x&&t.y>=this.min.y&&t.y<=this.max.y&&t.z>=this.min.z&&t.z<=this.max.z}containsBox(t){return this.min.x<=t.min.x&&t.max.x<=this.max.x&&this.min.y<=t.min.y&&t.max.y<=this.max.y&&this.min.z<=t.min.z&&t.max.z<=this.max.z}getParameter(t,e){return e.set((t.x-this.min.x)/(this.max.x-this.min.x),(t.y-this.min.y)/(this.max.y-this.min.y),(t.z-this.min.z)/(this.max.z-this.min.z))}intersectsBox(t){return t.max.x>=this.min.x&&t.min.x<=this.max.x&&t.max.y>=this.min.y&&t.min.y<=this.max.y&&t.max.z>=this.min.z&&t.min.z<=this.max.z}intersectsSphere(t){return this.clampPoint(t.center,Bi),Bi.distanceToSquared(t.center)<=t.radius*t.radius}intersectsPlane(t){let e,i;return t.normal.x>0?(e=t.normal.x*this.min.x,i=t.normal.x*this.max.x):(e=t.normal.x*this.max.x,i=t.normal.x*this.min.x),t.normal.y>0?(e+=t.normal.y*this.min.y,i+=t.normal.y*this.max.y):(e+=t.normal.y*this.max.y,i+=t.normal.y*this.min.y),t.normal.z>0?(e+=t.normal.z*this.min.z,i+=t.normal.z*this.max.z):(e+=t.normal.z*this.max.z,i+=t.normal.z*this.min.z),e<=-t.constant&&i>=-t.constant}intersectsTriangle(t){if(this.isEmpty())return!1;this.getCenter(Oi),Qi.subVectors(this.max,Oi),Di.subVectors(t.a,Oi),Li.subVectors(t.b,Oi),Pi.subVectors(t.c,Oi),Ui.subVectors(Li,Di),Fi.subVectors(Pi,Li),Ni.subVectors(Di,Pi);let e=[0,-Ui.z,Ui.y,0,-Fi.z,Fi.y,0,-Ni.z,Ni.y,Ui.z,0,-Ui.x,Fi.z,0,-Fi.x,Ni.z,0,-Ni.x,-Ui.y,Ui.x,0,-Fi.y,Fi.x,0,-Ni.y,Ni.x,0];return!!Hi(e,Di,Li,Pi,Qi)&&(e=[1,0,0,0,1,0,0,0,1],!!Hi(e,Di,Li,Pi,Qi)&&(ki.crossVectors(Ui,Fi),e=[ki.x,ki.y,ki.z],Hi(e,Di,Li,Pi,Qi)))}clampPoint(t,e){return e.copy(t).clamp(this.min,this.max)}distanceToPoint(t){return this.clampPoint(t,Bi).distanceTo(t)}getBoundingSphere(t){return this.isEmpty()?t.makeEmpty():(this.getCenter(t.center),t.radius=.5*this.getSize(Bi).length()),t}intersect(t){return this.min.max(t.min),this.max.min(t.max),this.isEmpty()&&this.makeEmpty(),this}union(t){return this.min.min(t.min),this.max.max(t.max),this}applyMatrix4(t){return this.isEmpty()||(Ti[0].set(this.min.x,this.min.y,this.min.z).applyMatrix4(t),Ti[1].set(this.min.x,this.min.y,this.max.z).applyMatrix4(t),Ti[2].set(this.min.x,this.max.y,this.min.z).applyMatrix4(t),Ti[3].set(this.min.x,this.max.y,this.max.z).applyMatrix4(t),Ti[4].set(this.max.x,this.min.y,this.min.z).applyMatrix4(t),Ti[5].set(this.max.x,this.min.y,this.max.z).applyMatrix4(t),Ti[6].set(this.max.x,this.max.y,this.min.z).applyMatrix4(t),Ti[7].set(this.max.x,this.max.y,this.max.z).applyMatrix4(t),this.setFromPoints(Ti)),this}translate(t){return this.min.add(t),this.max.add(t),this}equals(t){return t.min.equals(this.min)&&t.max.equals(this.max)}}const Ti=[new Ci,new Ci,new Ci,new Ci,new Ci,new Ci,new Ci,new Ci],Bi=new Ci,Ri=new Mi,Di=new Ci,Li=new Ci,Pi=new Ci,Ui=new Ci,Fi=new Ci,Ni=new Ci,Oi=new Ci,Qi=new Ci,ki=new Ci,Gi=new Ci;function Hi(t,e,i,n,s){for(let r=0,a=t.length-3;r<=a;r+=3){Gi.fromArray(t,r);const a=s.x*Math.abs(Gi.x)+s.y*Math.abs(Gi.y)+s.z*Math.abs(Gi.z),o=e.dot(Gi),l=i.dot(Gi),c=n.dot(Gi);if(Math.max(-Math.max(o,l,c),Math.min(o,l,c))>a)return!1}return!0}const zi=new Mi,Vi=new Ci,Wi=new Ci;class qi{constructor(t=new Ci,e=-1){this.isSphere=!0,this.center=t,this.radius=e}set(t,e){return this.center.copy(t),this.radius=e,this}setFromPoints(t,e){const i=this.center;void 0!==e?i.copy(e):zi.setFromPoints(t).getCenter(i);let n=0;for(let e=0,s=t.length;e<s;e++)n=Math.max(n,i.distanceToSquared(t[e]));return this.radius=Math.sqrt(n),this}copy(t){return this.center.copy(t.center),this.radius=t.radius,this}isEmpty(){return this.radius<0}makeEmpty(){return this.center.set(0,0,0),this.radius=-1,this}containsPoint(t){return t.distanceToSquared(this.center)<=this.radius*this.radius}distanceToPoint(t){return t.distanceTo(this.center)-this.radius}intersectsSphere(t){const e=this.radius+t.radius;return t.center.distanceToSquared(this.center)<=e*e}intersectsBox(t){return t.intersectsSphere(this)}intersectsPlane(t){return Math.abs(t.distanceToPoint(this.center))<=this.radius}clampPoint(t,e){const i=this.center.distanceToSquared(t);return e.copy(t),i>this.radius*this.radius&&(e.sub(this.center).normalize(),e.multiplyScalar(this.radius).add(this.center)),e}getBoundingBox(t){return this.isEmpty()?(t.makeEmpty(),t):(t.set(this.center,this.center),t.expandByScalar(this.radius),t)}applyMatrix4(t){return this.center.applyMatrix4(t),this.radius=this.radius*t.getMaxScaleOnAxis(),this}translate(t){return this.center.add(t),this}expandByPoint(t){if(this.isEmpty())return this.center.copy(t),this.radius=0,this;Vi.subVectors(t,this.center);const e=Vi.lengthSq();if(e>this.radius*this.radius){const t=Math.sqrt(e),i=.5*(t-this.radius);this.center.addScaledVector(Vi,i/t),this.radius+=i}return this}union(t){return t.isEmpty()?this:this.isEmpty()?(this.copy(t),this):(!0===this.center.equals(t.center)?this.radius=Math.max(this.radius,t.radius):(Wi.subVectors(t.center,this.center).setLength(t.radius),this.expandByPoint(Vi.copy(t.center).add(Wi)),this.expandByPoint(Vi.copy(t.center).sub(Wi))),this)}equals(t){return t.center.equals(this.center)&&t.radius===this.radius}clone(){return(new this.constructor).copy(this)}}const ji=new Ci,Xi=new Ci,Yi=new Ci,Ki=new Ci,Ji=new Ci,$i=new Ci,Zi=new Ci;class tn{constructor(t=new Ci,e=new Ci(0,0,-1)){this.origin=t,this.direction=e}set(t,e){return this.origin.copy(t),this.direction.copy(e),this}copy(t){return this.origin.copy(t.origin),this.direction.copy(t.direction),this}at(t,e){return e.copy(this.origin).addScaledVector(this.direction,t)}lookAt(t){return this.direction.copy(t).sub(this.origin).normalize(),this}recast(t){return this.origin.copy(this.at(t,ji)),this}closestPointToPoint(t,e){e.subVectors(t,this.origin);const i=e.dot(this.direction);return i<0?e.copy(this.origin):e.copy(this.origin).addScaledVector(this.direction,i)}distanceToPoint(t){return Math.sqrt(this.distanceSqToPoint(t))}distanceSqToPoint(t){const e=ji.subVectors(t,this.origin).dot(this.direction);return e<0?this.origin.distanceToSquared(t):(ji.copy(this.origin).addScaledVector(this.direction,e),ji.distanceToSquared(t))}distanceSqToSegment(t,e,i,n){Xi.copy(t).add(e).multiplyScalar(.5),Yi.copy(e).sub(t).normalize(),Ki.copy(this.origin).sub(Xi);const s=.5*t.distanceTo(e),r=-this.direction.dot(Yi),a=Ki.dot(this.direction),o=-Ki.dot(Yi),l=Ki.lengthSq(),c=Math.abs(1-r*r);let h,u,d,p;if(c>0)if(h=r*o-a,u=r*a-o,p=s*c,h>=0)if(u>=-p)if(u<=p){const t=1/c;h*=t,u*=t,d=h*(h+r*u+2*a)+u*(r*h+u+2*o)+l}else u=s,h=Math.max(0,-(r*u+a)),d=-h*h+u*(u+2*o)+l;else u=-s,h=Math.max(0,-(r*u+a)),d=-h*h+u*(u+2*o)+l;else u<=-p?(h=Math.max(0,-(-r*s+a)),u=h>0?-s:Math.min(Math.max(-s,-o),s),d=-h*h+u*(u+2*o)+l):u<=p?(h=0,u=Math.min(Math.max(-s,-o),s),d=u*(u+2*o)+l):(h=Math.max(0,-(r*s+a)),u=h>0?s:Math.min(Math.max(-s,-o),s),d=-h*h+u*(u+2*o)+l);else u=r>0?-s:s,h=Math.max(0,-(r*u+a)),d=-h*h+u*(u+2*o)+l;return i&&i.copy(this.origin).addScaledVector(this.direction,h),n&&n.copy(Xi).addScaledVector(Yi,u),d}intersectSphere(t,e){ji.subVectors(t.center,this.origin);const i=ji.dot(this.direction),n=ji.dot(ji)-i*i,s=t.radius*t.radius;if(n>s)return null;const r=Math.sqrt(s-n),a=i-r,o=i+r;return o<0?null:a<0?this.at(o,e):this.at(a,e)}intersectsSphere(t){return this.distanceSqToPoint(t.center)<=t.radius*t.radius}distanceToPlane(t){const e=t.normal.dot(this.direction);if(0===e)return 0===t.distanceToPoint(this.origin)?0:null;const i=-(this.origin.dot(t.normal)+t.constant)/e;return i>=0?i:null}intersectPlane(t,e){const i=this.distanceToPlane(t);return null===i?null:this.at(i,e)}intersectsPlane(t){const e=t.distanceToPoint(this.origin);if(0===e)return!0;return t.normal.dot(this.direction)*e<0}intersectBox(t,e){let i,n,s,r,a,o;const l=1/this.direction.x,c=1/this.direction.y,h=1/this.direction.z,u=this.origin;return l>=0?(i=(t.min.x-u.x)*l,n=(t.max.x-u.x)*l):(i=(t.max.x-u.x)*l,n=(t.min.x-u.x)*l),c>=0?(s=(t.min.y-u.y)*c,r=(t.max.y-u.y)*c):(s=(t.max.y-u.y)*c,r=(t.min.y-u.y)*c),i>r||s>n?null:((s>i||isNaN(i))&&(i=s),(r<n||isNaN(n))&&(n=r),h>=0?(a=(t.min.z-u.z)*h,o=(t.max.z-u.z)*h):(a=(t.max.z-u.z)*h,o=(t.min.z-u.z)*h),i>o||a>n?null:((a>i||i!=i)&&(i=a),(o<n||n!=n)&&(n=o),n<0?null:this.at(i>=0?i:n,e)))}intersectsBox(t){return null!==this.intersectBox(t,ji)}intersectTriangle(t,e,i,n,s){Ji.subVectors(e,t),$i.subVectors(i,t),Zi.crossVectors(Ji,$i);let r,a=this.direction.dot(Zi);if(a>0){if(n)return null;r=1}else{if(!(a<0))return null;r=-1,a=-a}Ki.subVectors(this.origin,t);const o=r*this.direction.dot($i.crossVectors(Ki,$i));if(o<0)return null;const l=r*this.direction.dot(Ji.cross(Ki));if(l<0)return null;if(o+l>a)return null;const c=-r*Ki.dot(Zi);return c<0?null:this.at(c/a,s)}applyMatrix4(t){return this.origin.applyMatrix4(t),this.direction.transformDirection(t),this}equals(t){return t.origin.equals(this.origin)&&t.direction.equals(this.direction)}clone(){return(new this.constructor).copy(this)}}class en{constructor(t,e,i,n,s,r,a,o,l,c,h,u,d,p,A,m){en.prototype.isMatrix4=!0,this.elements=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1],void 0!==t&&this.set(t,e,i,n,s,r,a,o,l,c,h,u,d,p,A,m)}set(t,e,i,n,s,r,a,o,l,c,h,u,d,p,A,m){const g=this.elements;return g[0]=t,g[4]=e,g[8]=i,g[12]=n,g[1]=s,g[5]=r,g[9]=a,g[13]=o,g[2]=l,g[6]=c,g[10]=h,g[14]=u,g[3]=d,g[7]=p,g[11]=A,g[15]=m,this}identity(){return this.set(1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1),this}clone(){return(new en).fromArray(this.elements)}copy(t){const e=this.elements,i=t.elements;return e[0]=i[0],e[1]=i[1],e[2]=i[2],e[3]=i[3],e[4]=i[4],e[5]=i[5],e[6]=i[6],e[7]=i[7],e[8]=i[8],e[9]=i[9],e[10]=i[10],e[11]=i[11],e[12]=i[12],e[13]=i[13],e[14]=i[14],e[15]=i[15],this}copyPosition(t){const e=this.elements,i=t.elements;return e[12]=i[12],e[13]=i[13],e[14]=i[14],this}setFromMatrix3(t){const e=t.elements;return this.set(e[0],e[3],e[6],0,e[1],e[4],e[7],0,e[2],e[5],e[8],0,0,0,0,1),this}extractBasis(t,e,i){return t.setFromMatrixColumn(this,0),e.setFromMatrixColumn(this,1),i.setFromMatrixColumn(this,2),this}makeBasis(t,e,i){return this.set(t.x,e.x,i.x,0,t.y,e.y,i.y,0,t.z,e.z,i.z,0,0,0,0,1),this}extractRotation(t){const e=this.elements,i=t.elements,n=1/nn.setFromMatrixColumn(t,0).length(),s=1/nn.setFromMatrixColumn(t,1).length(),r=1/nn.setFromMatrixColumn(t,2).length();return e[0]=i[0]*n,e[1]=i[1]*n,e[2]=i[2]*n,e[3]=0,e[4]=i[4]*s,e[5]=i[5]*s,e[6]=i[6]*s,e[7]=0,e[8]=i[8]*r,e[9]=i[9]*r,e[10]=i[10]*r,e[11]=0,e[12]=0,e[13]=0,e[14]=0,e[15]=1,this}makeRotationFromEuler(t){const e=this.elements,i=t.x,n=t.y,s=t.z,r=Math.cos(i),a=Math.sin(i),o=Math.cos(n),l=Math.sin(n),c=Math.cos(s),h=Math.sin(s);if("XYZ"===t.order){const t=r*c,i=r*h,n=a*c,s=a*h;e[0]=o*c,e[4]=-o*h,e[8]=l,e[1]=i+n*l,e[5]=t-s*l,e[9]=-a*o,e[2]=s-t*l,e[6]=n+i*l,e[10]=r*o}else if("YXZ"===t.order){const t=o*c,i=o*h,n=l*c,s=l*h;e[0]=t+s*a,e[4]=n*a-i,e[8]=r*l,e[1]=r*h,e[5]=r*c,e[9]=-a,e[2]=i*a-n,e[6]=s+t*a,e[10]=r*o}else if("ZXY"===t.order){const t=o*c,i=o*h,n=l*c,s=l*h;e[0]=t-s*a,e[4]=-r*h,e[8]=n+i*a,e[1]=i+n*a,e[5]=r*c,e[9]=s-t*a,e[2]=-r*l,e[6]=a,e[10]=r*o}else if("ZYX"===t.order){const t=r*c,i=r*h,n=a*c,s=a*h;e[0]=o*c,e[4]=n*l-i,e[8]=t*l+s,e[1]=o*h,e[5]=s*l+t,e[9]=i*l-n,e[2]=-l,e[6]=a*o,e[10]=r*o}else if("YZX"===t.order){const t=r*o,i=r*l,n=a*o,s=a*l;e[0]=o*c,e[4]=s-t*h,e[8]=n*h+i,e[1]=h,e[5]=r*c,e[9]=-a*c,e[2]=-l*c,e[6]=i*h+n,e[10]=t-s*h}else if("XZY"===t.order){const t=r*o,i=r*l,n=a*o,s=a*l;e[0]=o*c,e[4]=-h,e[8]=l*c,e[1]=t*h+s,e[5]=r*c,e[9]=i*h-n,e[2]=n*h-i,e[6]=a*c,e[10]=s*h+t}return e[3]=0,e[7]=0,e[11]=0,e[12]=0,e[13]=0,e[14]=0,e[15]=1,this}makeRotationFromQuaternion(t){return this.compose(rn,t,an)}lookAt(t,e,i){const n=this.elements;return cn.subVectors(t,e),0===cn.lengthSq()&&(cn.z=1),cn.normalize(),on.crossVectors(i,cn),0===on.lengthSq()&&(1===Math.abs(i.z)?cn.x+=1e-4:cn.z+=1e-4,cn.normalize(),on.crossVectors(i,cn)),on.normalize(),ln.crossVectors(cn,on),n[0]=on.x,n[4]=ln.x,n[8]=cn.x,n[1]=on.y,n[5]=ln.y,n[9]=cn.y,n[2]=on.z,n[6]=ln.z,n[10]=cn.z,this}multiply(t){return this.multiplyMatrices(this,t)}premultiply(t){return this.multiplyMatrices(t,this)}multiplyMatrices(t,e){const i=t.elements,n=e.elements,s=this.elements,r=i[0],a=i[4],o=i[8],l=i[12],c=i[1],h=i[5],u=i[9],d=i[13],p=i[2],A=i[6],m=i[10],g=i[14],f=i[3],v=i[7],b=i[11],y=i[15],x=n[0],_=n[4],E=n[8],S=n[12],C=n[1],w=n[5],I=n[9],M=n[13],T=n[2],B=n[6],R=n[10],D=n[14],L=n[3],P=n[7],U=n[11],F=n[15];return s[0]=r*x+a*C+o*T+l*L,s[4]=r*_+a*w+o*B+l*P,s[8]=r*E+a*I+o*R+l*U,s[12]=r*S+a*M+o*D+l*F,s[1]=c*x+h*C+u*T+d*L,s[5]=c*_+h*w+u*B+d*P,s[9]=c*E+h*I+u*R+d*U,s[13]=c*S+h*M+u*D+d*F,s[2]=p*x+A*C+m*T+g*L,s[6]=p*_+A*w+m*B+g*P,s[10]=p*E+A*I+m*R+g*U,s[14]=p*S+A*M+m*D+g*F,s[3]=f*x+v*C+b*T+y*L,s[7]=f*_+v*w+b*B+y*P,s[11]=f*E+v*I+b*R+y*U,s[15]=f*S+v*M+b*D+y*F,this}multiplyScalar(t){const e=this.elements;return e[0]*=t,e[4]*=t,e[8]*=t,e[12]*=t,e[1]*=t,e[5]*=t,e[9]*=t,e[13]*=t,e[2]*=t,e[6]*=t,e[10]*=t,e[14]*=t,e[3]*=t,e[7]*=t,e[11]*=t,e[15]*=t,this}determinant(){const t=this.elements,e=t[0],i=t[4],n=t[8],s=t[12],r=t[1],a=t[5],o=t[9],l=t[13],c=t[2],h=t[6],u=t[10],d=t[14];return t[3]*(+s*o*h-n*l*h-s*a*u+i*l*u+n*a*d-i*o*d)+t[7]*(+e*o*d-e*l*u+s*r*u-n*r*d+n*l*c-s*o*c)+t[11]*(+e*l*h-e*a*d-s*r*h+i*r*d+s*a*c-i*l*c)+t[15]*(-n*a*c-e*o*h+e*a*u+n*r*h-i*r*u+i*o*c)}transpose(){const t=this.elements;let e;return e=t[1],t[1]=t[4],t[4]=e,e=t[2],t[2]=t[8],t[8]=e,e=t[6],t[6]=t[9],t[9]=e,e=t[3],t[3]=t[12],t[12]=e,e=t[7],t[7]=t[13],t[13]=e,e=t[11],t[11]=t[14],t[14]=e,this}setPosition(t,e,i){const n=this.elements;return t.isVector3?(n[12]=t.x,n[13]=t.y,n[14]=t.z):(n[12]=t,n[13]=e,n[14]=i),this}invert(){const t=this.elements,e=t[0],i=t[1],n=t[2],s=t[3],r=t[4],a=t[5],o=t[6],l=t[7],c=t[8],h=t[9],u=t[10],d=t[11],p=t[12],A=t[13],m=t[14],g=t[15],f=h*m*l-A*u*l+A*o*d-a*m*d-h*o*g+a*u*g,v=p*u*l-c*m*l-p*o*d+r*m*d+c*o*g-r*u*g,b=c*A*l-p*h*l+p*a*d-r*A*d-c*a*g+r*h*g,y=p*h*o-c*A*o-p*a*u+r*A*u+c*a*m-r*h*m,x=e*f+i*v+n*b+s*y;if(0===x)return this.set(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0);const _=1/x;return t[0]=f*_,t[1]=(A*u*s-h*m*s-A*n*d+i*m*d+h*n*g-i*u*g)*_,t[2]=(a*m*s-A*o*s+A*n*l-i*m*l-a*n*g+i*o*g)*_,t[3]=(h*o*s-a*u*s-h*n*l+i*u*l+a*n*d-i*o*d)*_,t[4]=v*_,t[5]=(c*m*s-p*u*s+p*n*d-e*m*d-c*n*g+e*u*g)*_,t[6]=(p*o*s-r*m*s-p*n*l+e*m*l+r*n*g-e*o*g)*_,t[7]=(r*u*s-c*o*s+c*n*l-e*u*l-r*n*d+e*o*d)*_,t[8]=b*_,t[9]=(p*h*s-c*A*s-p*i*d+e*A*d+c*i*g-e*h*g)*_,t[10]=(r*A*s-p*a*s+p*i*l-e*A*l-r*i*g+e*a*g)*_,t[11]=(c*a*s-r*h*s-c*i*l+e*h*l+r*i*d-e*a*d)*_,t[12]=y*_,t[13]=(c*A*n-p*h*n+p*i*u-e*A*u-c*i*m+e*h*m)*_,t[14]=(p*a*n-r*A*n-p*i*o+e*A*o+r*i*m-e*a*m)*_,t[15]=(r*h*n-c*a*n+c*i*o-e*h*o-r*i*u+e*a*u)*_,this}scale(t){const e=this.elements,i=t.x,n=t.y,s=t.z;return e[0]*=i,e[4]*=n,e[8]*=s,e[1]*=i,e[5]*=n,e[9]*=s,e[2]*=i,e[6]*=n,e[10]*=s,e[3]*=i,e[7]*=n,e[11]*=s,this}getMaxScaleOnAxis(){const t=this.elements,e=t[0]*t[0]+t[1]*t[1]+t[2]*t[2],i=t[4]*t[4]+t[5]*t[5]+t[6]*t[6],n=t[8]*t[8]+t[9]*t[9]+t[10]*t[10];return Math.sqrt(Math.max(e,i,n))}makeTranslation(t,e,i){return t.isVector3?this.set(1,0,0,t.x,0,1,0,t.y,0,0,1,t.z,0,0,0,1):this.set(1,0,0,t,0,1,0,e,0,0,1,i,0,0,0,1),this}makeRotationX(t){const e=Math.cos(t),i=Math.sin(t);return this.set(1,0,0,0,0,e,-i,0,0,i,e,0,0,0,0,1),this}makeRotationY(t){const e=Math.cos(t),i=Math.sin(t);return this.set(e,0,i,0,0,1,0,0,-i,0,e,0,0,0,0,1),this}makeRotationZ(t){const e=Math.cos(t),i=Math.sin(t);return this.set(e,-i,0,0,i,e,0,0,0,0,1,0,0,0,0,1),this}makeRotationAxis(t,e){const i=Math.cos(e),n=Math.sin(e),s=1-i,r=t.x,a=t.y,o=t.z,l=s*r,c=s*a;return this.set(l*r+i,l*a-n*o,l*o+n*a,0,l*a+n*o,c*a+i,c*o-n*r,0,l*o-n*a,c*o+n*r,s*o*o+i,0,0,0,0,1),this}makeScale(t,e,i){return this.set(t,0,0,0,0,e,0,0,0,0,i,0,0,0,0,1),this}makeShear(t,e,i,n,s,r){return this.set(1,i,s,0,t,1,r,0,e,n,1,0,0,0,0,1),this}compose(t,e,i){const n=this.elements,s=e._x,r=e._y,a=e._z,o=e._w,l=s+s,c=r+r,h=a+a,u=s*l,d=s*c,p=s*h,A=r*c,m=r*h,g=a*h,f=o*l,v=o*c,b=o*h,y=i.x,x=i.y,_=i.z;return n[0]=(1-(A+g))*y,n[1]=(d+b)*y,n[2]=(p-v)*y,n[3]=0,n[4]=(d-b)*x,n[5]=(1-(u+g))*x,n[6]=(m+f)*x,n[7]=0,n[8]=(p+v)*_,n[9]=(m-f)*_,n[10]=(1-(u+A))*_,n[11]=0,n[12]=t.x,n[13]=t.y,n[14]=t.z,n[15]=1,this}decompose(t,e,i){const n=this.elements;let s=nn.set(n[0],n[1],n[2]).length();const r=nn.set(n[4],n[5],n[6]).length(),a=nn.set(n[8],n[9],n[10]).length();this.determinant()<0&&(s=-s),t.x=n[12],t.y=n[13],t.z=n[14],sn.copy(this);const o=1/s,l=1/r,c=1/a;return sn.elements[0]*=o,sn.elements[1]*=o,sn.elements[2]*=o,sn.elements[4]*=l,sn.elements[5]*=l,sn.elements[6]*=l,sn.elements[8]*=c,sn.elements[9]*=c,sn.elements[10]*=c,e.setFromRotationMatrix(sn),i.x=s,i.y=r,i.z=a,this}makePerspective(t,e,i,n,s,r,a=2e3){const o=this.elements,l=2*s/(e-t),c=2*s/(i-n),h=(e+t)/(e-t),u=(i+n)/(i-n);let d,p;if(a===Oe)d=-(r+s)/(r-s),p=-2*r*s/(r-s);else{if(a!==Qe)throw new Error("THREE.Matrix4.makePerspective(): Invalid coordinate system: "+a);d=-r/(r-s),p=-r*s/(r-s)}return o[0]=l,o[4]=0,o[8]=h,o[12]=0,o[1]=0,o[5]=c,o[9]=u,o[13]=0,o[2]=0,o[6]=0,o[10]=d,o[14]=p,o[3]=0,o[7]=0,o[11]=-1,o[15]=0,this}makeOrthographic(t,e,i,n,s,r,a=2e3){const o=this.elements,l=1/(e-t),c=1/(i-n),h=1/(r-s),u=(e+t)*l,d=(i+n)*c;let p,A;if(a===Oe)p=(r+s)*h,A=-2*h;else{if(a!==Qe)throw new Error("THREE.Matrix4.makeOrthographic(): Invalid coordinate system: "+a);p=s*h,A=-1*h}return o[0]=2*l,o[4]=0,o[8]=0,o[12]=-u,o[1]=0,o[5]=2*c,o[9]=0,o[13]=-d,o[2]=0,o[6]=0,o[10]=A,o[14]=-p,o[3]=0,o[7]=0,o[11]=0,o[15]=1,this}equals(t){const e=this.elements,i=t.elements;for(let t=0;t<16;t++)if(e[t]!==i[t])return!1;return!0}fromArray(t,e=0){for(let i=0;i<16;i++)this.elements[i]=t[i+e];return this}toArray(t=[],e=0){const i=this.elements;return t[e]=i[0],t[e+1]=i[1],t[e+2]=i[2],t[e+3]=i[3],t[e+4]=i[4],t[e+5]=i[5],t[e+6]=i[6],t[e+7]=i[7],t[e+8]=i[8],t[e+9]=i[9],t[e+10]=i[10],t[e+11]=i[11],t[e+12]=i[12],t[e+13]=i[13],t[e+14]=i[14],t[e+15]=i[15],t}}const nn=new Ci,sn=new en,rn=new Ci(0,0,0),an=new Ci(1,1,1),on=new Ci,ln=new Ci,cn=new Ci,hn=new en,un=new Si;class dn{constructor(t=0,e=0,i=0,n=dn.DEFAULT_ORDER){this.isEuler=!0,this._x=t,this._y=e,this._z=i,this._order=n}get x(){return this._x}set x(t){this._x=t,this._onChangeCallback()}get y(){return this._y}set y(t){this._y=t,this._onChangeCallback()}get z(){return this._z}set z(t){this._z=t,this._onChangeCallback()}get order(){return this._order}set order(t){this._order=t,this._onChangeCallback()}set(t,e,i,n=this._order){return this._x=t,this._y=e,this._z=i,this._order=n,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._order)}copy(t){return this._x=t._x,this._y=t._y,this._z=t._z,this._order=t._order,this._onChangeCallback(),this}setFromRotationMatrix(t,e=this._order,i=!0){const n=t.elements,s=n[0],r=n[4],a=n[8],o=n[1],l=n[5],c=n[9],h=n[2],u=n[6],d=n[10];switch(e){case"XYZ":this._y=Math.asin(qe(a,-1,1)),Math.abs(a)<.9999999?(this._x=Math.atan2(-c,d),this._z=Math.atan2(-r,s)):(this._x=Math.atan2(u,l),this._z=0);break;case"YXZ":this._x=Math.asin(-qe(c,-1,1)),Math.abs(c)<.9999999?(this._y=Math.atan2(a,d),this._z=Math.atan2(o,l)):(this._y=Math.atan2(-h,s),this._z=0);break;case"ZXY":this._x=Math.asin(qe(u,-1,1)),Math.abs(u)<.9999999?(this._y=Math.atan2(-h,d),this._z=Math.atan2(-r,l)):(this._y=0,this._z=Math.atan2(o,s));break;case"ZYX":this._y=Math.asin(-qe(h,-1,1)),Math.abs(h)<.9999999?(this._x=Math.atan2(u,d),this._z=Math.atan2(o,s)):(this._x=0,this._z=Math.atan2(-r,l));break;case"YZX":this._z=Math.asin(qe(o,-1,1)),Math.abs(o)<.9999999?(this._x=Math.atan2(-c,l),this._y=Math.atan2(-h,s)):(this._x=0,this._y=Math.atan2(a,d));break;case"XZY":this._z=Math.asin(-qe(r,-1,1)),Math.abs(r)<.9999999?(this._x=Math.atan2(u,l),this._y=Math.atan2(a,s)):(this._x=Math.atan2(-c,d),this._y=0);break;default:console.warn("THREE.Euler: .setFromRotationMatrix() encountered an unknown order: "+e)}return this._order=e,!0===i&&this._onChangeCallback(),this}setFromQuaternion(t,e,i){return hn.makeRotationFromQuaternion(t),this.setFromRotationMatrix(hn,e,i)}setFromVector3(t,e=this._order){return this.set(t.x,t.y,t.z,e)}reorder(t){return un.setFromEuler(this),this.setFromQuaternion(un,t)}equals(t){return t._x===this._x&&t._y===this._y&&t._z===this._z&&t._order===this._order}fromArray(t){return this._x=t[0],this._y=t[1],this._z=t[2],void 0!==t[3]&&(this._order=t[3]),this._onChangeCallback(),this}toArray(t=[],e=0){return t[e]=this._x,t[e+1]=this._y,t[e+2]=this._z,t[e+3]=this._order,t}_onChange(t){return this._onChangeCallback=t,this}_onChangeCallback(){}*[Symbol.iterator](){yield this._x,yield this._y,yield this._z,yield this._order}}dn.DEFAULT_ORDER="XYZ";class pn{constructor(){this.mask=1}set(t){this.mask=1<<t>>>0}enable(t){this.mask|=1<<t}enableAll(){this.mask=-1}toggle(t){this.mask^=1<<t}disable(t){this.mask&=~(1<<t)}disableAll(){this.mask=0}test(t){return!!(this.mask&t.mask)}isEnabled(t){return!!(this.mask&1<<t)}}let An=0;const mn=new Ci,gn=new Si,fn=new en,vn=new Ci,bn=new Ci,yn=new Ci,xn=new Si,_n=new Ci(1,0,0),En=new Ci(0,1,0),Sn=new Ci(0,0,1),Cn={type:"added"},wn={type:"removed"},In={type:"childadded",child:null},Mn={type:"childremoved",child:null};class Tn extends ke{constructor(){super(),this.isObject3D=!0,Object.defineProperty(this,"id",{value:An++}),this.uuid=We(),this.name="",this.type="Object3D",this.parent=null,this.children=[],this.up=Tn.DEFAULT_UP.clone();const t=new Ci,e=new dn,i=new Si,n=new Ci(1,1,1);e._onChange((function(){i.setFromEuler(e,!1)})),i._onChange((function(){e.setFromQuaternion(i,void 0,!1)})),Object.defineProperties(this,{position:{configurable:!0,enumerable:!0,value:t},rotation:{configurable:!0,enumerable:!0,value:e},quaternion:{configurable:!0,enumerable:!0,value:i},scale:{configurable:!0,enumerable:!0,value:n},modelViewMatrix:{value:new en},normalMatrix:{value:new Ze}}),this.matrix=new en,this.matrixWorld=new en,this.matrixAutoUpdate=Tn.DEFAULT_MATRIX_AUTO_UPDATE,this.matrixWorldAutoUpdate=Tn.DEFAULT_MATRIX_WORLD_AUTO_UPDATE,this.matrixWorldNeedsUpdate=!1,this.layers=new pn,this.visible=!0,this.castShadow=!1,this.receiveShadow=!1,this.frustumCulled=!0,this.renderOrder=0,this.animations=[],this.userData={}}onBeforeShadow(){}onAfterShadow(){}onBeforeRender(){}onAfterRender(){}applyMatrix4(t){this.matrixAutoUpdate&&this.updateMatrix(),this.matrix.premultiply(t),this.matrix.decompose(this.position,this.quaternion,this.scale)}applyQuaternion(t){return this.quaternion.premultiply(t),this}setRotationFromAxisAngle(t,e){this.quaternion.setFromAxisAngle(t,e)}setRotationFromEuler(t){this.quaternion.setFromEuler(t,!0)}setRotationFromMatrix(t){this.quaternion.setFromRotationMatrix(t)}setRotationFromQuaternion(t){this.quaternion.copy(t)}rotateOnAxis(t,e){return gn.setFromAxisAngle(t,e),this.quaternion.multiply(gn),this}rotateOnWorldAxis(t,e){return gn.setFromAxisAngle(t,e),this.quaternion.premultiply(gn),this}rotateX(t){return this.rotateOnAxis(_n,t)}rotateY(t){return this.rotateOnAxis(En,t)}rotateZ(t){return this.rotateOnAxis(Sn,t)}translateOnAxis(t,e){return mn.copy(t).applyQuaternion(this.quaternion),this.position.add(mn.multiplyScalar(e)),this}translateX(t){return this.translateOnAxis(_n,t)}translateY(t){return this.translateOnAxis(En,t)}translateZ(t){return this.translateOnAxis(Sn,t)}localToWorld(t){return this.updateWorldMatrix(!0,!1),t.applyMatrix4(this.matrixWorld)}worldToLocal(t){return this.updateWorldMatrix(!0,!1),t.applyMatrix4(fn.copy(this.matrixWorld).invert())}lookAt(t,e,i){t.isVector3?vn.copy(t):vn.set(t,e,i);const n=this.parent;this.updateWorldMatrix(!0,!1),bn.setFromMatrixPosition(this.matrixWorld),this.isCamera||this.isLight?fn.lookAt(bn,vn,this.up):fn.lookAt(vn,bn,this.up),this.quaternion.setFromRotationMatrix(fn),n&&(fn.extractRotation(n.matrixWorld),gn.setFromRotationMatrix(fn),this.quaternion.premultiply(gn.invert()))}add(t){if(arguments.length>1){for(let t=0;t<arguments.length;t++)this.add(arguments[t]);return this}return t===this?(console.error("THREE.Object3D.add: object can't be added as a child of itself.",t),this):(t&&t.isObject3D?(t.removeFromParent(),t.parent=this,this.children.push(t),t.dispatchEvent(Cn),In.child=t,this.dispatchEvent(In),In.child=null):console.error("THREE.Object3D.add: object not an instance of THREE.Object3D.",t),this)}remove(t){if(arguments.length>1){for(let t=0;t<arguments.length;t++)this.remove(arguments[t]);return this}const e=this.children.indexOf(t);return-1!==e&&(t.parent=null,this.children.splice(e,1),t.dispatchEvent(wn),Mn.child=t,this.dispatchEvent(Mn),Mn.child=null),this}removeFromParent(){const t=this.parent;return null!==t&&t.remove(this),this}clear(){return this.remove(...this.children)}attach(t){return this.updateWorldMatrix(!0,!1),fn.copy(this.matrixWorld).invert(),null!==t.parent&&(t.parent.updateWorldMatrix(!0,!1),fn.multiply(t.parent.matrixWorld)),t.applyMatrix4(fn),t.removeFromParent(),t.parent=this,this.children.push(t),t.updateWorldMatrix(!1,!0),t.dispatchEvent(Cn),In.child=t,this.dispatchEvent(In),In.child=null,this}getObjectById(t){return this.getObjectByProperty("id",t)}getObjectByName(t){return this.getObjectByProperty("name",t)}getObjectByProperty(t,e){if(this[t]===e)return this;for(let i=0,n=this.children.length;i<n;i++){const n=this.children[i].getObjectByProperty(t,e);if(void 0!==n)return n}}getObjectsByProperty(t,e,i=[]){this[t]===e&&i.push(this);const n=this.children;for(let s=0,r=n.length;s<r;s++)n[s].getObjectsByProperty(t,e,i);return i}getWorldPosition(t){return this.updateWorldMatrix(!0,!1),t.setFromMatrixPosition(this.matrixWorld)}getWorldQuaternion(t){return this.updateWorldMatrix(!0,!1),this.matrixWorld.decompose(bn,t,yn),t}getWorldScale(t){return this.updateWorldMatrix(!0,!1),this.matrixWorld.decompose(bn,xn,t),t}getWorldDirection(t){this.updateWorldMatrix(!0,!1);const e=this.matrixWorld.elements;return t.set(e[8],e[9],e[10]).normalize()}raycast(){}traverse(t){t(this);const e=this.children;for(let i=0,n=e.length;i<n;i++)e[i].traverse(t)}traverseVisible(t){if(!1===this.visible)return;t(this);const e=this.children;for(let i=0,n=e.length;i<n;i++)e[i].traverseVisible(t)}traverseAncestors(t){const e=this.parent;null!==e&&(t(e),e.traverseAncestors(t))}updateMatrix(){this.matrix.compose(this.position,this.quaternion,this.scale),this.matrixWorldNeedsUpdate=!0}updateMatrixWorld(t){this.matrixAutoUpdate&&this.updateMatrix(),(this.matrixWorldNeedsUpdate||t)&&(!0===this.matrixWorldAutoUpdate&&(null===this.parent?this.matrixWorld.copy(this.matrix):this.matrixWorld.multiplyMatrices(this.parent.matrixWorld,this.matrix)),this.matrixWorldNeedsUpdate=!1,t=!0);const e=this.children;for(let i=0,n=e.length;i<n;i++){e[i].updateMatrixWorld(t)}}updateWorldMatrix(t,e){const i=this.parent;if(!0===t&&null!==i&&i.updateWorldMatrix(!0,!1),this.matrixAutoUpdate&&this.updateMatrix(),!0===this.matrixWorldAutoUpdate&&(null===this.parent?this.matrixWorld.copy(this.matrix):this.matrixWorld.multiplyMatrices(this.parent.matrixWorld,this.matrix)),!0===e){const t=this.children;for(let e=0,i=t.length;e<i;e++){t[e].updateWorldMatrix(!1,!0)}}}toJSON(t){const e=void 0===t||"string"==typeof t,i={};e&&(t={geometries:{},materials:{},textures:{},images:{},shapes:{},skeletons:{},animations:{},nodes:{}},i.metadata={version:4.6,type:"Object",generator:"Object3D.toJSON"});const n={};function s(e,i){return void 0===e[i.uuid]&&(e[i.uuid]=i.toJSON(t)),i.uuid}if(n.uuid=this.uuid,n.type=this.type,""!==this.name&&(n.name=this.name),!0===this.castShadow&&(n.castShadow=!0),!0===this.receiveShadow&&(n.receiveShadow=!0),!1===this.visible&&(n.visible=!1),!1===this.frustumCulled&&(n.frustumCulled=!1),0!==this.renderOrder&&(n.renderOrder=this.renderOrder),Object.keys(this.userData).length>0&&(n.userData=this.userData),n.layers=this.layers.mask,n.matrix=this.matrix.toArray(),n.up=this.up.toArray(),!1===this.matrixAutoUpdate&&(n.matrixAutoUpdate=!1),this.isInstancedMesh&&(n.type="InstancedMesh",n.count=this.count,n.instanceMatrix=this.instanceMatrix.toJSON(),null!==this.instanceColor&&(n.instanceColor=this.instanceColor.toJSON())),this.isBatchedMesh&&(n.type="BatchedMesh",n.perObjectFrustumCulled=this.perObjectFrustumCulled,n.sortObjects=this.sortObjects,n.drawRanges=this._drawRanges,n.reservedRanges=this._reservedRanges,n.visibility=this._visibility,n.active=this._active,n.bounds=this._bounds.map((t=>({boxInitialized:t.boxInitialized,boxMin:t.box.min.toArray(),boxMax:t.box.max.toArray(),sphereInitialized:t.sphereInitialized,sphereRadius:t.sphere.radius,sphereCenter:t.sphere.center.toArray()}))),n.maxInstanceCount=this._maxInstanceCount,n.maxVertexCount=this._maxVertexCount,n.maxIndexCount=this._maxIndexCount,n.geometryInitialized=this._geometryInitialized,n.geometryCount=this._geometryCount,n.matricesTexture=this._matricesTexture.toJSON(t),null!==this._colorsTexture&&(n.colorsTexture=this._colorsTexture.toJSON(t)),null!==this.boundingSphere&&(n.boundingSphere={center:n.boundingSphere.center.toArray(),radius:n.boundingSphere.radius}),null!==this.boundingBox&&(n.boundingBox={min:n.boundingBox.min.toArray(),max:n.boundingBox.max.toArray()})),this.isScene)this.background&&(this.background.isColor?n.background=this.background.toJSON():this.background.isTexture&&(n.background=this.background.toJSON(t).uuid)),this.environment&&this.environment.isTexture&&!0!==this.environment.isRenderTargetTexture&&(n.environment=this.environment.toJSON(t).uuid);else if(this.isMesh||this.isLine||this.isPoints){n.geometry=s(t.geometries,this.geometry);const e=this.geometry.parameters;if(void 0!==e&&void 0!==e.shapes){const i=e.shapes;if(Array.isArray(i))for(let e=0,n=i.length;e<n;e++){const n=i[e];s(t.shapes,n)}else s(t.shapes,i)}}if(this.isSkinnedMesh&&(n.bindMode=this.bindMode,n.bindMatrix=this.bindMatrix.toArray(),void 0!==this.skeleton&&(s(t.skeletons,this.skeleton),n.skeleton=this.skeleton.uuid)),void 0!==this.material)if(Array.isArray(this.material)){const e=[];for(let i=0,n=this.material.length;i<n;i++)e.push(s(t.materials,this.material[i]));n.material=e}else n.material=s(t.materials,this.material);if(this.children.length>0){n.children=[];for(let e=0;e<this.children.length;e++)n.children.push(this.children[e].toJSON(t).object)}if(this.animations.length>0){n.animations=[];for(let e=0;e<this.animations.length;e++){const i=this.animations[e];n.animations.push(s(t.animations,i))}}if(e){const e=r(t.geometries),n=r(t.materials),s=r(t.textures),a=r(t.images),o=r(t.shapes),l=r(t.skeletons),c=r(t.animations),h=r(t.nodes);e.length>0&&(i.geometries=e),n.length>0&&(i.materials=n),s.length>0&&(i.textures=s),a.length>0&&(i.images=a),o.length>0&&(i.shapes=o),l.length>0&&(i.skeletons=l),c.length>0&&(i.animations=c),h.length>0&&(i.nodes=h)}return i.object=n,i;function r(t){const e=[];for(const i in t){const n=t[i];delete n.metadata,e.push(n)}return e}}clone(t){return(new this.constructor).copy(this,t)}copy(t,e=!0){if(this.name=t.name,this.up.copy(t.up),this.position.copy(t.position),this.rotation.order=t.rotation.order,this.quaternion.copy(t.quaternion),this.scale.copy(t.scale),this.matrix.copy(t.matrix),this.matrixWorld.copy(t.matrixWorld),this.matrixAutoUpdate=t.matrixAutoUpdate,this.matrixWorldAutoUpdate=t.matrixWorldAutoUpdate,this.matrixWorldNeedsUpdate=t.matrixWorldNeedsUpdate,this.layers.mask=t.layers.mask,this.visible=t.visible,this.castShadow=t.castShadow,this.receiveShadow=t.receiveShadow,this.frustumCulled=t.frustumCulled,this.renderOrder=t.renderOrder,this.animations=t.animations.slice(),this.userData=JSON.parse(JSON.stringify(t.userData)),!0===e)for(let e=0;e<t.children.length;e++){const i=t.children[e];this.add(i.clone())}return this}}Tn.DEFAULT_UP=new Ci(0,1,0),Tn.DEFAULT_MATRIX_AUTO_UPDATE=!0,Tn.DEFAULT_MATRIX_WORLD_AUTO_UPDATE=!0;const Bn=new Ci,Rn=new Ci,Dn=new Ci,Ln=new Ci,Pn=new Ci,Un=new Ci,Fn=new Ci,Nn=new Ci,On=new Ci,Qn=new Ci,kn=new bi,Gn=new bi,Hn=new bi;class zn{constructor(t=new Ci,e=new Ci,i=new Ci){this.a=t,this.b=e,this.c=i}static getNormal(t,e,i,n){n.subVectors(i,e),Bn.subVectors(t,e),n.cross(Bn);const s=n.lengthSq();return s>0?n.multiplyScalar(1/Math.sqrt(s)):n.set(0,0,0)}static getBarycoord(t,e,i,n,s){Bn.subVectors(n,e),Rn.subVectors(i,e),Dn.subVectors(t,e);const r=Bn.dot(Bn),a=Bn.dot(Rn),o=Bn.dot(Dn),l=Rn.dot(Rn),c=Rn.dot(Dn),h=r*l-a*a;if(0===h)return s.set(0,0,0),null;const u=1/h,d=(l*o-a*c)*u,p=(r*c-a*o)*u;return s.set(1-d-p,p,d)}static containsPoint(t,e,i,n){return null!==this.getBarycoord(t,e,i,n,Ln)&&(Ln.x>=0&&Ln.y>=0&&Ln.x+Ln.y<=1)}static getInterpolation(t,e,i,n,s,r,a,o){return null===this.getBarycoord(t,e,i,n,Ln)?(o.x=0,o.y=0,"z"in o&&(o.z=0),"w"in o&&(o.w=0),null):(o.setScalar(0),o.addScaledVector(s,Ln.x),o.addScaledVector(r,Ln.y),o.addScaledVector(a,Ln.z),o)}static getInterpolatedAttribute(t,e,i,n,s,r){return kn.setScalar(0),Gn.setScalar(0),Hn.setScalar(0),kn.fromBufferAttribute(t,e),Gn.fromBufferAttribute(t,i),Hn.fromBufferAttribute(t,n),r.setScalar(0),r.addScaledVector(kn,s.x),r.addScaledVector(Gn,s.y),r.addScaledVector(Hn,s.z),r}static isFrontFacing(t,e,i,n){return Bn.subVectors(i,e),Rn.subVectors(t,e),Bn.cross(Rn).dot(n)<0}set(t,e,i){return this.a.copy(t),this.b.copy(e),this.c.copy(i),this}setFromPointsAndIndices(t,e,i,n){return this.a.copy(t[e]),this.b.copy(t[i]),this.c.copy(t[n]),this}setFromAttributeAndIndices(t,e,i,n){return this.a.fromBufferAttribute(t,e),this.b.fromBufferAttribute(t,i),this.c.fromBufferAttribute(t,n),this}clone(){return(new this.constructor).copy(this)}copy(t){return this.a.copy(t.a),this.b.copy(t.b),this.c.copy(t.c),this}getArea(){return Bn.subVectors(this.c,this.b),Rn.subVectors(this.a,this.b),.5*Bn.cross(Rn).length()}getMidpoint(t){return t.addVectors(this.a,this.b).add(this.c).multiplyScalar(1/3)}getNormal(t){return zn.getNormal(this.a,this.b,this.c,t)}getPlane(t){return t.setFromCoplanarPoints(this.a,this.b,this.c)}getBarycoord(t,e){return zn.getBarycoord(t,this.a,this.b,this.c,e)}getInterpolation(t,e,i,n,s){return zn.getInterpolation(t,this.a,this.b,this.c,e,i,n,s)}containsPoint(t){return zn.containsPoint(t,this.a,this.b,this.c)}isFrontFacing(t){return zn.isFrontFacing(this.a,this.b,this.c,t)}intersectsBox(t){return t.intersectsTriangle(this)}closestPointToPoint(t,e){const i=this.a,n=this.b,s=this.c;let r,a;Pn.subVectors(n,i),Un.subVectors(s,i),Nn.subVectors(t,i);const o=Pn.dot(Nn),l=Un.dot(Nn);if(o<=0&&l<=0)return e.copy(i);On.subVectors(t,n);const c=Pn.dot(On),h=Un.dot(On);if(c>=0&&h<=c)return e.copy(n);const u=o*h-c*l;if(u<=0&&o>=0&&c<=0)return r=o/(o-c),e.copy(i).addScaledVector(Pn,r);Qn.subVectors(t,s);const d=Pn.dot(Qn),p=Un.dot(Qn);if(p>=0&&d<=p)return e.copy(s);const A=d*l-o*p;if(A<=0&&l>=0&&p<=0)return a=l/(l-p),e.copy(i).addScaledVector(Un,a);const m=c*p-d*h;if(m<=0&&h-c>=0&&d-p>=0)return Fn.subVectors(s,n),a=(h-c)/(h-c+(d-p)),e.copy(n).addScaledVector(Fn,a);const g=1/(m+A+u);return r=A*g,a=u*g,e.copy(i).addScaledVector(Pn,r).addScaledVector(Un,a)}equals(t){return t.a.equals(this.a)&&t.b.equals(this.b)&&t.c.equals(this.c)}}const Vn={aliceblue:15792383,antiquewhite:16444375,aqua:65535,aquamarine:8388564,azure:15794175,beige:16119260,bisque:16770244,black:0,blanchedalmond:16772045,blue:255,blueviolet:9055202,brown:10824234,burlywood:14596231,cadetblue:6266528,chartreuse:8388352,chocolate:13789470,coral:16744272,cornflowerblue:6591981,cornsilk:16775388,crimson:14423100,cyan:65535,darkblue:139,darkcyan:35723,darkgoldenrod:12092939,darkgray:11119017,darkgreen:25600,darkgrey:11119017,darkkhaki:12433259,darkmagenta:9109643,darkolivegreen:5597999,darkorange:16747520,darkorchid:10040012,darkred:9109504,darksalmon:15308410,darkseagreen:9419919,darkslateblue:4734347,darkslategray:3100495,darkslategrey:3100495,darkturquoise:52945,darkviolet:9699539,deeppink:16716947,deepskyblue:49151,dimgray:6908265,dimgrey:6908265,dodgerblue:2003199,firebrick:11674146,floralwhite:16775920,forestgreen:2263842,fuchsia:16711935,gainsboro:14474460,ghostwhite:16316671,gold:16766720,goldenrod:14329120,gray:8421504,green:32768,greenyellow:11403055,grey:8421504,honeydew:15794160,hotpink:16738740,indianred:13458524,indigo:4915330,ivory:16777200,khaki:15787660,lavender:15132410,lavenderblush:16773365,lawngreen:8190976,lemonchiffon:16775885,lightblue:11393254,lightcoral:15761536,lightcyan:14745599,lightgoldenrodyellow:16448210,lightgray:13882323,lightgreen:9498256,lightgrey:13882323,lightpink:16758465,lightsalmon:16752762,lightseagreen:2142890,lightskyblue:8900346,lightslategray:7833753,lightslategrey:7833753,lightsteelblue:11584734,lightyellow:16777184,lime:65280,limegreen:3329330,linen:16445670,magenta:16711935,maroon:8388608,mediumaquamarine:6737322,mediumblue:205,mediumorchid:12211667,mediumpurple:9662683,mediumseagreen:3978097,mediumslateblue:8087790,mediumspringgreen:64154,mediumturquoise:4772300,mediumvioletred:13047173,midnightblue:1644912,mintcream:16121850,mistyrose:16770273,moccasin:16770229,navajowhite:16768685,navy:128,oldlace:16643558,olive:8421376,olivedrab:7048739,orange:16753920,orangered:16729344,orchid:14315734,palegoldenrod:15657130,palegreen:10025880,paleturquoise:11529966,palevioletred:14381203,papayawhip:16773077,peachpuff:16767673,peru:13468991,pink:16761035,plum:14524637,powderblue:11591910,purple:8388736,rebeccapurple:6697881,red:16711680,rosybrown:12357519,royalblue:4286945,saddlebrown:9127187,salmon:16416882,sandybrown:16032864,seagreen:3050327,seashell:16774638,sienna:10506797,silver:12632256,skyblue:8900331,slateblue:6970061,slategray:7372944,slategrey:7372944,snow:16775930,springgreen:65407,steelblue:4620980,tan:13808780,teal:32896,thistle:14204888,tomato:16737095,turquoise:4251856,violet:15631086,wheat:16113331,white:16777215,whitesmoke:16119285,yellow:16776960,yellowgreen:10145074},Wn={h:0,s:0,l:0},qn={h:0,s:0,l:0};function jn(t,e,i){return i<0&&(i+=1),i>1&&(i-=1),i<1/6?t+6*(e-t)*i:i<.5?e:i<2/3?t+6*(e-t)*(2/3-i):t}class Xn{constructor(t,e,i){return this.isColor=!0,this.r=1,this.g=1,this.b=1,this.set(t,e,i)}set(t,e,i){if(void 0===e&&void 0===i){const e=t;e&&e.isColor?this.copy(e):"number"==typeof e?this.setHex(e):"string"==typeof e&&this.setStyle(e)}else this.setRGB(t,e,i);return this}setScalar(t){return this.r=t,this.g=t,this.b=t,this}setHex(t,e=Ee){return t=Math.floor(t),this.r=(t>>16&255)/255,this.g=(t>>8&255)/255,this.b=(255&t)/255,ci.toWorkingColorSpace(this,e),this}setRGB(t,e,i,n=ci.workingColorSpace){return this.r=t,this.g=e,this.b=i,ci.toWorkingColorSpace(this,n),this}setHSL(t,e,i,n=ci.workingColorSpace){if(t=je(t,1),e=qe(e,0,1),i=qe(i,0,1),0===e)this.r=this.g=this.b=i;else{const n=i<=.5?i*(1+e):i+e-i*e,s=2*i-n;this.r=jn(s,n,t+1/3),this.g=jn(s,n,t),this.b=jn(s,n,t-1/3)}return ci.toWorkingColorSpace(this,n),this}setStyle(t,e=Ee){function i(e){void 0!==e&&parseFloat(e)<1&&console.warn("THREE.Color: Alpha component of "+t+" will be ignored.")}let n;if(n=/^(\w+)\(([^\)]*)\)/.exec(t)){let s;const r=n[1],a=n[2];switch(r){case"rgb":case"rgba":if(s=/^\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(a))return i(s[4]),this.setRGB(Math.min(255,parseInt(s[1],10))/255,Math.min(255,parseInt(s[2],10))/255,Math.min(255,parseInt(s[3],10))/255,e);if(s=/^\s*(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(a))return i(s[4]),this.setRGB(Math.min(100,parseInt(s[1],10))/100,Math.min(100,parseInt(s[2],10))/100,Math.min(100,parseInt(s[3],10))/100,e);break;case"hsl":case"hsla":if(s=/^\s*(\d*\.?\d+)\s*,\s*(\d*\.?\d+)\%\s*,\s*(\d*\.?\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(a))return i(s[4]),this.setHSL(parseFloat(s[1])/360,parseFloat(s[2])/100,parseFloat(s[3])/100,e);break;default:console.warn("THREE.Color: Unknown color model "+t)}}else if(n=/^\#([A-Fa-f\d]+)$/.exec(t)){const i=n[1],s=i.length;if(3===s)return this.setRGB(parseInt(i.charAt(0),16)/15,parseInt(i.charAt(1),16)/15,parseInt(i.charAt(2),16)/15,e);if(6===s)return this.setHex(parseInt(i,16),e);console.warn("THREE.Color: Invalid hex color "+t)}else if(t&&t.length>0)return this.setColorName(t,e);return this}setColorName(t,e=Ee){const i=Vn[t.toLowerCase()];return void 0!==i?this.setHex(i,e):console.warn("THREE.Color: Unknown color "+t),this}clone(){return new this.constructor(this.r,this.g,this.b)}copy(t){return this.r=t.r,this.g=t.g,this.b=t.b,this}copySRGBToLinear(t){return this.r=hi(t.r),this.g=hi(t.g),this.b=hi(t.b),this}copyLinearToSRGB(t){return this.r=ui(t.r),this.g=ui(t.g),this.b=ui(t.b),this}convertSRGBToLinear(){return this.copySRGBToLinear(this),this}convertLinearToSRGB(){return this.copyLinearToSRGB(this),this}getHex(t=Ee){return ci.fromWorkingColorSpace(Yn.copy(this),t),65536*Math.round(qe(255*Yn.r,0,255))+256*Math.round(qe(255*Yn.g,0,255))+Math.round(qe(255*Yn.b,0,255))}getHexString(t=Ee){return("000000"+this.getHex(t).toString(16)).slice(-6)}getHSL(t,e=ci.workingColorSpace){ci.fromWorkingColorSpace(Yn.copy(this),e);const i=Yn.r,n=Yn.g,s=Yn.b,r=Math.max(i,n,s),a=Math.min(i,n,s);let o,l;const c=(a+r)/2;if(a===r)o=0,l=0;else{const t=r-a;switch(l=c<=.5?t/(r+a):t/(2-r-a),r){case i:o=(n-s)/t+(n<s?6:0);break;case n:o=(s-i)/t+2;break;case s:o=(i-n)/t+4}o/=6}return t.h=o,t.s=l,t.l=c,t}getRGB(t,e=ci.workingColorSpace){return ci.fromWorkingColorSpace(Yn.copy(this),e),t.r=Yn.r,t.g=Yn.g,t.b=Yn.b,t}getStyle(t=Ee){ci.fromWorkingColorSpace(Yn.copy(this),t);const e=Yn.r,i=Yn.g,n=Yn.b;return t!==Ee?`color(${t} ${e.toFixed(3)} ${i.toFixed(3)} ${n.toFixed(3)})`:`rgb(${Math.round(255*e)},${Math.round(255*i)},${Math.round(255*n)})`}offsetHSL(t,e,i){return this.getHSL(Wn),this.setHSL(Wn.h+t,Wn.s+e,Wn.l+i)}add(t){return this.r+=t.r,this.g+=t.g,this.b+=t.b,this}addColors(t,e){return this.r=t.r+e.r,this.g=t.g+e.g,this.b=t.b+e.b,this}addScalar(t){return this.r+=t,this.g+=t,this.b+=t,this}sub(t){return this.r=Math.max(0,this.r-t.r),this.g=Math.max(0,this.g-t.g),this.b=Math.max(0,this.b-t.b),this}multiply(t){return this.r*=t.r,this.g*=t.g,this.b*=t.b,this}multiplyScalar(t){return this.r*=t,this.g*=t,this.b*=t,this}lerp(t,e){return this.r+=(t.r-this.r)*e,this.g+=(t.g-this.g)*e,this.b+=(t.b-this.b)*e,this}lerpColors(t,e,i){return this.r=t.r+(e.r-t.r)*i,this.g=t.g+(e.g-t.g)*i,this.b=t.b+(e.b-t.b)*i,this}lerpHSL(t,e){this.getHSL(Wn),t.getHSL(qn);const i=Xe(Wn.h,qn.h,e),n=Xe(Wn.s,qn.s,e),s=Xe(Wn.l,qn.l,e);return this.setHSL(i,n,s),this}setFromVector3(t){return this.r=t.x,this.g=t.y,this.b=t.z,this}applyMatrix3(t){const e=this.r,i=this.g,n=this.b,s=t.elements;return this.r=s[0]*e+s[3]*i+s[6]*n,this.g=s[1]*e+s[4]*i+s[7]*n,this.b=s[2]*e+s[5]*i+s[8]*n,this}equals(t){return t.r===this.r&&t.g===this.g&&t.b===this.b}fromArray(t,e=0){return this.r=t[e],this.g=t[e+1],this.b=t[e+2],this}toArray(t=[],e=0){return t[e]=this.r,t[e+1]=this.g,t[e+2]=this.b,t}fromBufferAttribute(t,e){return this.r=t.getX(e),this.g=t.getY(e),this.b=t.getZ(e),this}toJSON(){return this.getHex()}*[Symbol.iterator](){yield this.r,yield this.g,yield this.b}}const Yn=new Xn;Xn.NAMES=Vn;let Kn=0,Jn=class extends ke{constructor(){super(),this.isMaterial=!0,Object.defineProperty(this,"id",{value:Kn++}),this.uuid=We(),this.name="",this.type="Material",this.blending=1,this.side=0,this.vertexColors=!1,this.opacity=1,this.transparent=!1,this.alphaHash=!1,this.blendSrc=204,this.blendDst=205,this.blendEquation=M,this.blendSrcAlpha=null,this.blendDstAlpha=null,this.blendEquationAlpha=null,this.blendColor=new Xn(0,0,0),this.blendAlpha=0,this.depthFunc=3,this.depthTest=!0,this.depthWrite=!0,this.stencilWriteMask=255,this.stencilFunc=519,this.stencilRef=0,this.stencilFuncMask=255,this.stencilFail=Ie,this.stencilZFail=Ie,this.stencilZPass=Ie,this.stencilWrite=!1,this.clippingPlanes=null,this.clipIntersection=!1,this.clipShadows=!1,this.shadowSide=null,this.colorWrite=!0,this.precision=null,this.polygonOffset=!1,this.polygonOffsetFactor=0,this.polygonOffsetUnits=0,this.dithering=!1,this.alphaToCoverage=!1,this.premultipliedAlpha=!1,this.forceSinglePass=!1,this.visible=!0,this.toneMapped=!0,this.userData={},this.version=0,this._alphaTest=0}get alphaTest(){return this._alphaTest}set alphaTest(t){this._alphaTest>0!=t>0&&this.version++,this._alphaTest=t}onBeforeRender(){}onBeforeCompile(){}customProgramCacheKey(){return this.onBeforeCompile.toString()}setValues(t){if(void 0!==t)for(const e in t){const i=t[e];if(void 0===i){console.warn(`THREE.Material: parameter '${e}' has value of undefined.`);continue}const n=this[e];void 0!==n?n&&n.isColor?n.set(i):n&&n.isVector3&&i&&i.isVector3?n.copy(i):this[e]=i:console.warn(`THREE.Material: '${e}' is not a property of THREE.${this.type}.`)}}toJSON(t){const e=void 0===t||"string"==typeof t;e&&(t={textures:{},images:{}});const i={metadata:{version:4.6,type:"Material",generator:"Material.toJSON"}};function n(t){const e=[];for(const i in t){const n=t[i];delete n.metadata,e.push(n)}return e}if(i.uuid=this.uuid,i.type=this.type,""!==this.name&&(i.name=this.name),this.color&&this.color.isColor&&(i.color=this.color.getHex()),void 0!==this.roughness&&(i.roughness=this.roughness),void 0!==this.metalness&&(i.metalness=this.metalness),void 0!==this.sheen&&(i.sheen=this.sheen),this.sheenColor&&this.sheenColor.isColor&&(i.sheenColor=this.sheenColor.getHex()),void 0!==this.sheenRoughness&&(i.sheenRoughness=this.sheenRoughness),this.emissive&&this.emissive.isColor&&(i.emissive=this.emissive.getHex()),void 0!==this.emissiveIntensity&&1!==this.emissiveIntensity&&(i.emissiveIntensity=this.emissiveIntensity),this.specular&&this.specular.isColor&&(i.specular=this.specular.getHex()),void 0!==this.specularIntensity&&(i.specularIntensity=this.specularIntensity),this.specularColor&&this.specularColor.isColor&&(i.specularColor=this.specularColor.getHex()),void 0!==this.shininess&&(i.shininess=this.shininess),void 0!==this.clearcoat&&(i.clearcoat=this.clearcoat),void 0!==this.clearcoatRoughness&&(i.clearcoatRoughness=this.clearcoatRoughness),this.clearcoatMap&&this.clearcoatMap.isTexture&&(i.clearcoatMap=this.clearcoatMap.toJSON(t).uuid),this.clearcoatRoughnessMap&&this.clearcoatRoughnessMap.isTexture&&(i.clearcoatRoughnessMap=this.clearcoatRoughnessMap.toJSON(t).uuid),this.clearcoatNormalMap&&this.clearcoatNormalMap.isTexture&&(i.clearcoatNormalMap=this.clearcoatNormalMap.toJSON(t).uuid,i.clearcoatNormalScale=this.clearcoatNormalScale.toArray()),void 0!==this.dispersion&&(i.dispersion=this.dispersion),void 0!==this.iridescence&&(i.iridescence=this.iridescence),void 0!==this.iridescenceIOR&&(i.iridescenceIOR=this.iridescenceIOR),void 0!==this.iridescenceThicknessRange&&(i.iridescenceThicknessRange=this.iridescenceThicknessRange),this.iridescenceMap&&this.iridescenceMap.isTexture&&(i.iridescenceMap=this.iridescenceMap.toJSON(t).uuid),this.iridescenceThicknessMap&&this.iridescenceThicknessMap.isTexture&&(i.iridescenceThicknessMap=this.iridescenceThicknessMap.toJSON(t).uuid),void 0!==this.anisotropy&&(i.anisotropy=this.anisotropy),void 0!==this.anisotropyRotation&&(i.anisotropyRotation=this.anisotropyRotation),this.anisotropyMap&&this.anisotropyMap.isTexture&&(i.anisotropyMap=this.anisotropyMap.toJSON(t).uuid),this.map&&this.map.isTexture&&(i.map=this.map.toJSON(t).uuid),this.matcap&&this.matcap.isTexture&&(i.matcap=this.matcap.toJSON(t).uuid),this.alphaMap&&this.alphaMap.isTexture&&(i.alphaMap=this.alphaMap.toJSON(t).uuid),this.lightMap&&this.lightMap.isTexture&&(i.lightMap=this.lightMap.toJSON(t).uuid,i.lightMapIntensity=this.lightMapIntensity),this.aoMap&&this.aoMap.isTexture&&(i.aoMap=this.aoMap.toJSON(t).uuid,i.aoMapIntensity=this.aoMapIntensity),this.bumpMap&&this.bumpMap.isTexture&&(i.bumpMap=this.bumpMap.toJSON(t).uuid,i.bumpScale=this.bumpScale),this.normalMap&&this.normalMap.isTexture&&(i.normalMap=this.normalMap.toJSON(t).uuid,i.normalMapType=this.normalMapType,i.normalScale=this.normalScale.toArray()),this.displacementMap&&this.displacementMap.isTexture&&(i.displacementMap=this.displacementMap.toJSON(t).uuid,i.displacementScale=this.displacementScale,i.displacementBias=this.displacementBias),this.roughnessMap&&this.roughnessMap.isTexture&&(i.roughnessMap=this.roughnessMap.toJSON(t).uuid),this.metalnessMap&&this.metalnessMap.isTexture&&(i.metalnessMap=this.metalnessMap.toJSON(t).uuid),this.emissiveMap&&this.emissiveMap.isTexture&&(i.emissiveMap=this.emissiveMap.toJSON(t).uuid),this.specularMap&&this.specularMap.isTexture&&(i.specularMap=this.specularMap.toJSON(t).uuid),this.specularIntensityMap&&this.specularIntensityMap.isTexture&&(i.specularIntensityMap=this.specularIntensityMap.toJSON(t).uuid),this.specularColorMap&&this.specularColorMap.isTexture&&(i.specularColorMap=this.specularColorMap.toJSON(t).uuid),this.envMap&&this.envMap.isTexture&&(i.envMap=this.envMap.toJSON(t).uuid,void 0!==this.combine&&(i.combine=this.combine)),void 0!==this.envMapRotation&&(i.envMapRotation=this.envMapRotation.toArray()),void 0!==this.envMapIntensity&&(i.envMapIntensity=this.envMapIntensity),void 0!==this.reflectivity&&(i.reflectivity=this.reflectivity),void 0!==this.refractionRatio&&(i.refractionRatio=this.refractionRatio),this.gradientMap&&this.gradientMap.isTexture&&(i.gradientMap=this.gradientMap.toJSON(t).uuid),void 0!==this.transmission&&(i.transmission=this.transmission),this.transmissionMap&&this.transmissionMap.isTexture&&(i.transmissionMap=this.transmissionMap.toJSON(t).uuid),void 0!==this.thickness&&(i.thickness=this.thickness),this.thicknessMap&&this.thicknessMap.isTexture&&(i.thicknessMap=this.thicknessMap.toJSON(t).uuid),void 0!==this.attenuationDistance&&this.attenuationDistance!==1/0&&(i.attenuationDistance=this.attenuationDistance),void 0!==this.attenuationColor&&(i.attenuationColor=this.attenuationColor.getHex()),void 0!==this.size&&(i.size=this.size),null!==this.shadowSide&&(i.shadowSide=this.shadowSide),void 0!==this.sizeAttenuation&&(i.sizeAttenuation=this.sizeAttenuation),1!==this.blending&&(i.blending=this.blending),0!==this.side&&(i.side=this.side),!0===this.vertexColors&&(i.vertexColors=!0),this.opacity<1&&(i.opacity=this.opacity),!0===this.transparent&&(i.transparent=!0),204!==this.blendSrc&&(i.blendSrc=this.blendSrc),205!==this.blendDst&&(i.blendDst=this.blendDst),this.blendEquation!==M&&(i.blendEquation=this.blendEquation),null!==this.blendSrcAlpha&&(i.blendSrcAlpha=this.blendSrcAlpha),null!==this.blendDstAlpha&&(i.blendDstAlpha=this.blendDstAlpha),null!==this.blendEquationAlpha&&(i.blendEquationAlpha=this.blendEquationAlpha),this.blendColor&&this.blendColor.isColor&&(i.blendColor=this.blendColor.getHex()),0!==this.blendAlpha&&(i.blendAlpha=this.blendAlpha),3!==this.depthFunc&&(i.depthFunc=this.depthFunc),!1===this.depthTest&&(i.depthTest=this.depthTest),!1===this.depthWrite&&(i.depthWrite=this.depthWrite),!1===this.colorWrite&&(i.colorWrite=this.colorWrite),255!==this.stencilWriteMask&&(i.stencilWriteMask=this.stencilWriteMask),519!==this.stencilFunc&&(i.stencilFunc=this.stencilFunc),0!==this.stencilRef&&(i.stencilRef=this.stencilRef),255!==this.stencilFuncMask&&(i.stencilFuncMask=this.stencilFuncMask),this.stencilFail!==Ie&&(i.stencilFail=this.stencilFail),this.stencilZFail!==Ie&&(i.stencilZFail=this.stencilZFail),this.stencilZPass!==Ie&&(i.stencilZPass=this.stencilZPass),!0===this.stencilWrite&&(i.stencilWrite=this.stencilWrite),void 0!==this.rotation&&0!==this.rotation&&(i.rotation=this.rotation),!0===this.polygonOffset&&(i.polygonOffset=!0),0!==this.polygonOffsetFactor&&(i.polygonOffsetFactor=this.polygonOffsetFactor),0!==this.polygonOffsetUnits&&(i.polygonOffsetUnits=this.polygonOffsetUnits),void 0!==this.linewidth&&1!==this.linewidth&&(i.linewidth=this.linewidth),void 0!==this.dashSize&&(i.dashSize=this.dashSize),void 0!==this.gapSize&&(i.gapSize=this.gapSize),void 0!==this.scale&&(i.scale=this.scale),!0===this.dithering&&(i.dithering=!0),this.alphaTest>0&&(i.alphaTest=this.alphaTest),!0===this.alphaHash&&(i.alphaHash=!0),!0===this.alphaToCoverage&&(i.alphaToCoverage=!0),!0===this.premultipliedAlpha&&(i.premultipliedAlpha=!0),!0===this.forceSinglePass&&(i.forceSinglePass=!0),!0===this.wireframe&&(i.wireframe=!0),this.wireframeLinewidth>1&&(i.wireframeLinewidth=this.wireframeLinewidth),"round"!==this.wireframeLinecap&&(i.wireframeLinecap=this.wireframeLinecap),"round"!==this.wireframeLinejoin&&(i.wireframeLinejoin=this.wireframeLinejoin),!0===this.flatShading&&(i.flatShading=!0),!1===this.visible&&(i.visible=!1),!1===this.toneMapped&&(i.toneMapped=!1),!1===this.fog&&(i.fog=!1),Object.keys(this.userData).length>0&&(i.userData=this.userData),e){const e=n(t.textures),s=n(t.images);e.length>0&&(i.textures=e),s.length>0&&(i.images=s)}return i}clone(){return(new this.constructor).copy(this)}copy(t){this.name=t.name,this.blending=t.blending,this.side=t.side,this.vertexColors=t.vertexColors,this.opacity=t.opacity,this.transparent=t.transparent,this.blendSrc=t.blendSrc,this.blendDst=t.blendDst,this.blendEquation=t.blendEquation,this.blendSrcAlpha=t.blendSrcAlpha,this.blendDstAlpha=t.blendDstAlpha,this.blendEquationAlpha=t.blendEquationAlpha,this.blendColor.copy(t.blendColor),this.blendAlpha=t.blendAlpha,this.depthFunc=t.depthFunc,this.depthTest=t.depthTest,this.depthWrite=t.depthWrite,this.stencilWriteMask=t.stencilWriteMask,this.stencilFunc=t.stencilFunc,this.stencilRef=t.stencilRef,this.stencilFuncMask=t.stencilFuncMask,this.stencilFail=t.stencilFail,this.stencilZFail=t.stencilZFail,this.stencilZPass=t.stencilZPass,this.stencilWrite=t.stencilWrite;const e=t.clippingPlanes;let i=null;if(null!==e){const t=e.length;i=new Array(t);for(let n=0;n!==t;++n)i[n]=e[n].clone()}return this.clippingPlanes=i,this.clipIntersection=t.clipIntersection,this.clipShadows=t.clipShadows,this.shadowSide=t.shadowSide,this.colorWrite=t.colorWrite,this.precision=t.precision,this.polygonOffset=t.polygonOffset,this.polygonOffsetFactor=t.polygonOffsetFactor,this.polygonOffsetUnits=t.polygonOffsetUnits,this.dithering=t.dithering,this.alphaTest=t.alphaTest,this.alphaHash=t.alphaHash,this.alphaToCoverage=t.alphaToCoverage,this.premultipliedAlpha=t.premultipliedAlpha,this.forceSinglePass=t.forceSinglePass,this.visible=t.visible,this.toneMapped=t.toneMapped,this.userData=JSON.parse(JSON.stringify(t.userData)),this}dispose(){this.dispatchEvent({type:"dispose"})}set needsUpdate(t){!0===t&&this.version++}onBuild(){console.warn("Material: onBuild() has been removed.")}};class $n extends Jn{constructor(t){super(),this.isMeshBasicMaterial=!0,this.type="MeshBasicMaterial",this.color=new Xn(16777215),this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.envMapRotation=new dn,this.combine=0,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.fog=!0,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.envMapRotation.copy(t.envMapRotation),this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.fog=t.fog,this}}const Zn=ts();function ts(){const t=new ArrayBuffer(4),e=new Float32Array(t),i=new Uint32Array(t),n=new Uint32Array(512),s=new Uint32Array(512);for(let t=0;t<256;++t){const e=t-127;e<-27?(n[t]=0,n[256|t]=32768,s[t]=24,s[256|t]=24):e<-14?(n[t]=1024>>-e-14,n[256|t]=1024>>-e-14|32768,s[t]=-e-1,s[256|t]=-e-1):e<=15?(n[t]=e+15<<10,n[256|t]=e+15<<10|32768,s[t]=13,s[256|t]=13):e<128?(n[t]=31744,n[256|t]=64512,s[t]=24,s[256|t]=24):(n[t]=31744,n[256|t]=64512,s[t]=13,s[256|t]=13)}const r=new Uint32Array(2048),a=new Uint32Array(64),o=new Uint32Array(64);for(let t=1;t<1024;++t){let e=t<<13,i=0;for(;!(8388608&e);)e<<=1,i-=8388608;e&=-8388609,i+=947912704,r[t]=e|i}for(let t=1024;t<2048;++t)r[t]=939524096+(t-1024<<13);for(let t=1;t<31;++t)a[t]=t<<23;a[31]=1199570944,a[32]=2147483648;for(let t=33;t<63;++t)a[t]=2147483648+(t-32<<23);a[63]=3347054592;for(let t=1;t<64;++t)32!==t&&(o[t]=1024);return{floatView:e,uint32View:i,baseTable:n,shiftTable:s,mantissaTable:r,exponentTable:a,offsetTable:o}}class es{static toHalfFloat(t){return function(t){Math.abs(t)>65504&&console.warn("THREE.DataUtils.toHalfFloat(): Value out of range."),t=qe(t,-65504,65504),Zn.floatView[0]=t;const e=Zn.uint32View[0],i=e>>23&511;return Zn.baseTable[i]+((8388607&e)>>Zn.shiftTable[i])}(t)}static fromHalfFloat(t){return function(t){const e=t>>10;return Zn.uint32View[0]=Zn.mantissaTable[Zn.offsetTable[e]+(1023&t)]+Zn.exponentTable[e],Zn.floatView[0]}(t)}}const is=new Ci,ns=new $e;let ss=0;class rs{constructor(t,e,i=!1){if(Array.isArray(t))throw new TypeError("THREE.BufferAttribute: array should be a Typed Array.");this.isBufferAttribute=!0,Object.defineProperty(this,"id",{value:ss++}),this.name="",this.array=t,this.itemSize=e,this.count=void 0!==t?t.length/e:0,this.normalized=i,this.usage=Fe,this.updateRanges=[],this.gpuType=xt,this.version=0}onUploadCallback(){}set needsUpdate(t){!0===t&&this.version++}setUsage(t){return this.usage=t,this}addUpdateRange(t,e){this.updateRanges.push({start:t,count:e})}clearUpdateRanges(){this.updateRanges.length=0}copy(t){return this.name=t.name,this.array=new t.array.constructor(t.array),this.itemSize=t.itemSize,this.count=t.count,this.normalized=t.normalized,this.usage=t.usage,this.gpuType=t.gpuType,this}copyAt(t,e,i){t*=this.itemSize,i*=e.itemSize;for(let n=0,s=this.itemSize;n<s;n++)this.array[t+n]=e.array[i+n];return this}copyArray(t){return this.array.set(t),this}applyMatrix3(t){if(2===this.itemSize)for(let e=0,i=this.count;e<i;e++)ns.fromBufferAttribute(this,e),ns.applyMatrix3(t),this.setXY(e,ns.x,ns.y);else if(3===this.itemSize)for(let e=0,i=this.count;e<i;e++)is.fromBufferAttribute(this,e),is.applyMatrix3(t),this.setXYZ(e,is.x,is.y,is.z);return this}applyMatrix4(t){for(let e=0,i=this.count;e<i;e++)is.fromBufferAttribute(this,e),is.applyMatrix4(t),this.setXYZ(e,is.x,is.y,is.z);return this}applyNormalMatrix(t){for(let e=0,i=this.count;e<i;e++)is.fromBufferAttribute(this,e),is.applyNormalMatrix(t),this.setXYZ(e,is.x,is.y,is.z);return this}transformDirection(t){for(let e=0,i=this.count;e<i;e++)is.fromBufferAttribute(this,e),is.transformDirection(t),this.setXYZ(e,is.x,is.y,is.z);return this}set(t,e=0){return this.array.set(t,e),this}getComponent(t,e){let i=this.array[t*this.itemSize+e];return this.normalized&&(i=Ye(i,this.array)),i}setComponent(t,e,i){return this.normalized&&(i=Ke(i,this.array)),this.array[t*this.itemSize+e]=i,this}getX(t){let e=this.array[t*this.itemSize];return this.normalized&&(e=Ye(e,this.array)),e}setX(t,e){return this.normalized&&(e=Ke(e,this.array)),this.array[t*this.itemSize]=e,this}getY(t){let e=this.array[t*this.itemSize+1];return this.normalized&&(e=Ye(e,this.array)),e}setY(t,e){return this.normalized&&(e=Ke(e,this.array)),this.array[t*this.itemSize+1]=e,this}getZ(t){let e=this.array[t*this.itemSize+2];return this.normalized&&(e=Ye(e,this.array)),e}setZ(t,e){return this.normalized&&(e=Ke(e,this.array)),this.array[t*this.itemSize+2]=e,this}getW(t){let e=this.array[t*this.itemSize+3];return this.normalized&&(e=Ye(e,this.array)),e}setW(t,e){return this.normalized&&(e=Ke(e,this.array)),this.array[t*this.itemSize+3]=e,this}setXY(t,e,i){return t*=this.itemSize,this.normalized&&(e=Ke(e,this.array),i=Ke(i,this.array)),this.array[t+0]=e,this.array[t+1]=i,this}setXYZ(t,e,i,n){return t*=this.itemSize,this.normalized&&(e=Ke(e,this.array),i=Ke(i,this.array),n=Ke(n,this.array)),this.array[t+0]=e,this.array[t+1]=i,this.array[t+2]=n,this}setXYZW(t,e,i,n,s){return t*=this.itemSize,this.normalized&&(e=Ke(e,this.array),i=Ke(i,this.array),n=Ke(n,this.array),s=Ke(s,this.array)),this.array[t+0]=e,this.array[t+1]=i,this.array[t+2]=n,this.array[t+3]=s,this}onUpload(t){return this.onUploadCallback=t,this}clone(){return new this.constructor(this.array,this.itemSize).copy(this)}toJSON(){const t={itemSize:this.itemSize,type:this.array.constructor.name,array:Array.from(this.array),normalized:this.normalized};return""!==this.name&&(t.name=this.name),this.usage!==Fe&&(t.usage=this.usage),t}}class as extends rs{constructor(t,e,i){super(new Uint16Array(t),e,i)}}class os extends rs{constructor(t,e,i){super(new Uint32Array(t),e,i)}}class ls extends rs{constructor(t,e,i){super(new Float32Array(t),e,i)}}let cs=0;const hs=new en,us=new Tn,ds=new Ci,ps=new Mi,As=new Mi,ms=new Ci;class gs extends ke{constructor(){super(),this.isBufferGeometry=!0,Object.defineProperty(this,"id",{value:cs++}),this.uuid=We(),this.name="",this.type="BufferGeometry",this.index=null,this.indirect=null,this.attributes={},this.morphAttributes={},this.morphTargetsRelative=!1,this.groups=[],this.boundingBox=null,this.boundingSphere=null,this.drawRange={start:0,count:1/0},this.userData={}}getIndex(){return this.index}setIndex(t){return Array.isArray(t)?this.index=new(ei(t)?os:as)(t,1):this.index=t,this}setIndirect(t){return this.indirect=t,this}getIndirect(){return this.indirect}getAttribute(t){return this.attributes[t]}setAttribute(t,e){return this.attributes[t]=e,this}deleteAttribute(t){return delete this.attributes[t],this}hasAttribute(t){return void 0!==this.attributes[t]}addGroup(t,e,i=0){this.groups.push({start:t,count:e,materialIndex:i})}clearGroups(){this.groups=[]}setDrawRange(t,e){this.drawRange.start=t,this.drawRange.count=e}applyMatrix4(t){const e=this.attributes.position;void 0!==e&&(e.applyMatrix4(t),e.needsUpdate=!0);const i=this.attributes.normal;if(void 0!==i){const e=(new Ze).getNormalMatrix(t);i.applyNormalMatrix(e),i.needsUpdate=!0}const n=this.attributes.tangent;return void 0!==n&&(n.transformDirection(t),n.needsUpdate=!0),null!==this.boundingBox&&this.computeBoundingBox(),null!==this.boundingSphere&&this.computeBoundingSphere(),this}applyQuaternion(t){return hs.makeRotationFromQuaternion(t),this.applyMatrix4(hs),this}rotateX(t){return hs.makeRotationX(t),this.applyMatrix4(hs),this}rotateY(t){return hs.makeRotationY(t),this.applyMatrix4(hs),this}rotateZ(t){return hs.makeRotationZ(t),this.applyMatrix4(hs),this}translate(t,e,i){return hs.makeTranslation(t,e,i),this.applyMatrix4(hs),this}scale(t,e,i){return hs.makeScale(t,e,i),this.applyMatrix4(hs),this}lookAt(t){return us.lookAt(t),us.updateMatrix(),this.applyMatrix4(us.matrix),this}center(){return this.computeBoundingBox(),this.boundingBox.getCenter(ds).negate(),this.translate(ds.x,ds.y,ds.z),this}setFromPoints(t){const e=this.getAttribute("position");if(void 0===e){const e=[];for(let i=0,n=t.length;i<n;i++){const n=t[i];e.push(n.x,n.y,n.z||0)}this.setAttribute("position",new ls(e,3))}else{const i=Math.min(t.length,e.count);for(let n=0;n<i;n++){const i=t[n];e.setXYZ(n,i.x,i.y,i.z||0)}t.length>e.count&&console.warn("THREE.BufferGeometry: Buffer size too small for points data. Use .dispose() and create a new geometry."),e.needsUpdate=!0}return this}computeBoundingBox(){null===this.boundingBox&&(this.boundingBox=new Mi);const t=this.attributes.position,e=this.morphAttributes.position;if(t&&t.isGLBufferAttribute)return console.error("THREE.BufferGeometry.computeBoundingBox(): GLBufferAttribute requires a manual bounding box.",this),void this.boundingBox.set(new Ci(-1/0,-1/0,-1/0),new Ci(1/0,1/0,1/0));if(void 0!==t){if(this.boundingBox.setFromBufferAttribute(t),e)for(let t=0,i=e.length;t<i;t++){const i=e[t];ps.setFromBufferAttribute(i),this.morphTargetsRelative?(ms.addVectors(this.boundingBox.min,ps.min),this.boundingBox.expandByPoint(ms),ms.addVectors(this.boundingBox.max,ps.max),this.boundingBox.expandByPoint(ms)):(this.boundingBox.expandByPoint(ps.min),this.boundingBox.expandByPoint(ps.max))}}else this.boundingBox.makeEmpty();(isNaN(this.boundingBox.min.x)||isNaN(this.boundingBox.min.y)||isNaN(this.boundingBox.min.z))&&console.error('THREE.BufferGeometry.computeBoundingBox(): Computed min/max have NaN values. The "position" attribute is likely to have NaN values.',this)}computeBoundingSphere(){null===this.boundingSphere&&(this.boundingSphere=new qi);const t=this.attributes.position,e=this.morphAttributes.position;if(t&&t.isGLBufferAttribute)return console.error("THREE.BufferGeometry.computeBoundingSphere(): GLBufferAttribute requires a manual bounding sphere.",this),void this.boundingSphere.set(new Ci,1/0);if(t){const i=this.boundingSphere.center;if(ps.setFromBufferAttribute(t),e)for(let t=0,i=e.length;t<i;t++){const i=e[t];As.setFromBufferAttribute(i),this.morphTargetsRelative?(ms.addVectors(ps.min,As.min),ps.expandByPoint(ms),ms.addVectors(ps.max,As.max),ps.expandByPoint(ms)):(ps.expandByPoint(As.min),ps.expandByPoint(As.max))}ps.getCenter(i);let n=0;for(let e=0,s=t.count;e<s;e++)ms.fromBufferAttribute(t,e),n=Math.max(n,i.distanceToSquared(ms));if(e)for(let s=0,r=e.length;s<r;s++){const r=e[s],a=this.morphTargetsRelative;for(let e=0,s=r.count;e<s;e++)ms.fromBufferAttribute(r,e),a&&(ds.fromBufferAttribute(t,e),ms.add(ds)),n=Math.max(n,i.distanceToSquared(ms))}this.boundingSphere.radius=Math.sqrt(n),isNaN(this.boundingSphere.radius)&&console.error('THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.',this)}}computeTangents(){const t=this.index,e=this.attributes;if(null===t||void 0===e.position||void 0===e.normal||void 0===e.uv)return void console.error("THREE.BufferGeometry: .computeTangents() failed. Missing required attributes (index, position, normal or uv)");const i=e.position,n=e.normal,s=e.uv;!1===this.hasAttribute("tangent")&&this.setAttribute("tangent",new rs(new Float32Array(4*i.count),4));const r=this.getAttribute("tangent"),a=[],o=[];for(let t=0;t<i.count;t++)a[t]=new Ci,o[t]=new Ci;const l=new Ci,c=new Ci,h=new Ci,u=new $e,d=new $e,p=new $e,A=new Ci,m=new Ci;function g(t,e,n){l.fromBufferAttribute(i,t),c.fromBufferAttribute(i,e),h.fromBufferAttribute(i,n),u.fromBufferAttribute(s,t),d.fromBufferAttribute(s,e),p.fromBufferAttribute(s,n),c.sub(l),h.sub(l),d.sub(u),p.sub(u);const r=1/(d.x*p.y-p.x*d.y);isFinite(r)&&(A.copy(c).multiplyScalar(p.y).addScaledVector(h,-d.y).multiplyScalar(r),m.copy(h).multiplyScalar(d.x).addScaledVector(c,-p.x).multiplyScalar(r),a[t].add(A),a[e].add(A),a[n].add(A),o[t].add(m),o[e].add(m),o[n].add(m))}let f=this.groups;0===f.length&&(f=[{start:0,count:t.count}]);for(let e=0,i=f.length;e<i;++e){const i=f[e],n=i.start;for(let e=n,s=n+i.count;e<s;e+=3)g(t.getX(e+0),t.getX(e+1),t.getX(e+2))}const v=new Ci,b=new Ci,y=new Ci,x=new Ci;function _(t){y.fromBufferAttribute(n,t),x.copy(y);const e=a[t];v.copy(e),v.sub(y.multiplyScalar(y.dot(e))).normalize(),b.crossVectors(x,e);const i=b.dot(o[t])<0?-1:1;r.setXYZW(t,v.x,v.y,v.z,i)}for(let e=0,i=f.length;e<i;++e){const i=f[e],n=i.start;for(let e=n,s=n+i.count;e<s;e+=3)_(t.getX(e+0)),_(t.getX(e+1)),_(t.getX(e+2))}}computeVertexNormals(){const t=this.index,e=this.getAttribute("position");if(void 0!==e){let i=this.getAttribute("normal");if(void 0===i)i=new rs(new Float32Array(3*e.count),3),this.setAttribute("normal",i);else for(let t=0,e=i.count;t<e;t++)i.setXYZ(t,0,0,0);const n=new Ci,s=new Ci,r=new Ci,a=new Ci,o=new Ci,l=new Ci,c=new Ci,h=new Ci;if(t)for(let u=0,d=t.count;u<d;u+=3){const d=t.getX(u+0),p=t.getX(u+1),A=t.getX(u+2);n.fromBufferAttribute(e,d),s.fromBufferAttribute(e,p),r.fromBufferAttribute(e,A),c.subVectors(r,s),h.subVectors(n,s),c.cross(h),a.fromBufferAttribute(i,d),o.fromBufferAttribute(i,p),l.fromBufferAttribute(i,A),a.add(c),o.add(c),l.add(c),i.setXYZ(d,a.x,a.y,a.z),i.setXYZ(p,o.x,o.y,o.z),i.setXYZ(A,l.x,l.y,l.z)}else for(let t=0,a=e.count;t<a;t+=3)n.fromBufferAttribute(e,t+0),s.fromBufferAttribute(e,t+1),r.fromBufferAttribute(e,t+2),c.subVectors(r,s),h.subVectors(n,s),c.cross(h),i.setXYZ(t+0,c.x,c.y,c.z),i.setXYZ(t+1,c.x,c.y,c.z),i.setXYZ(t+2,c.x,c.y,c.z);this.normalizeNormals(),i.needsUpdate=!0}}normalizeNormals(){const t=this.attributes.normal;for(let e=0,i=t.count;e<i;e++)ms.fromBufferAttribute(t,e),ms.normalize(),t.setXYZ(e,ms.x,ms.y,ms.z)}toNonIndexed(){function t(t,e){const i=t.array,n=t.itemSize,s=t.normalized,r=new i.constructor(e.length*n);let a=0,o=0;for(let s=0,l=e.length;s<l;s++){a=t.isInterleavedBufferAttribute?e[s]*t.data.stride+t.offset:e[s]*n;for(let t=0;t<n;t++)r[o++]=i[a++]}return new rs(r,n,s)}if(null===this.index)return console.warn("THREE.BufferGeometry.toNonIndexed(): BufferGeometry is already non-indexed."),this;const e=new gs,i=this.index.array,n=this.attributes;for(const s in n){const r=t(n[s],i);e.setAttribute(s,r)}const s=this.morphAttributes;for(const n in s){const r=[],a=s[n];for(let e=0,n=a.length;e<n;e++){const n=t(a[e],i);r.push(n)}e.morphAttributes[n]=r}e.morphTargetsRelative=this.morphTargetsRelative;const r=this.groups;for(let t=0,i=r.length;t<i;t++){const i=r[t];e.addGroup(i.start,i.count,i.materialIndex)}return e}toJSON(){const t={metadata:{version:4.6,type:"BufferGeometry",generator:"BufferGeometry.toJSON"}};if(t.uuid=this.uuid,t.type=this.type,""!==this.name&&(t.name=this.name),Object.keys(this.userData).length>0&&(t.userData=this.userData),void 0!==this.parameters){const e=this.parameters;for(const i in e)void 0!==e[i]&&(t[i]=e[i]);return t}t.data={attributes:{}};const e=this.index;null!==e&&(t.data.index={type:e.array.constructor.name,array:Array.prototype.slice.call(e.array)});const i=this.attributes;for(const e in i){const n=i[e];t.data.attributes[e]=n.toJSON(t.data)}const n={};let s=!1;for(const e in this.morphAttributes){const i=this.morphAttributes[e],r=[];for(let e=0,n=i.length;e<n;e++){const n=i[e];r.push(n.toJSON(t.data))}r.length>0&&(n[e]=r,s=!0)}s&&(t.data.morphAttributes=n,t.data.morphTargetsRelative=this.morphTargetsRelative);const r=this.groups;r.length>0&&(t.data.groups=JSON.parse(JSON.stringify(r)));const a=this.boundingSphere;return null!==a&&(t.data.boundingSphere={center:a.center.toArray(),radius:a.radius}),t}clone(){return(new this.constructor).copy(this)}copy(t){this.index=null,this.attributes={},this.morphAttributes={},this.groups=[],this.boundingBox=null,this.boundingSphere=null;const e={};this.name=t.name;const i=t.index;null!==i&&this.setIndex(i.clone(e));const n=t.attributes;for(const t in n){const i=n[t];this.setAttribute(t,i.clone(e))}const s=t.morphAttributes;for(const t in s){const i=[],n=s[t];for(let t=0,s=n.length;t<s;t++)i.push(n[t].clone(e));this.morphAttributes[t]=i}this.morphTargetsRelative=t.morphTargetsRelative;const r=t.groups;for(let t=0,e=r.length;t<e;t++){const e=r[t];this.addGroup(e.start,e.count,e.materialIndex)}const a=t.boundingBox;null!==a&&(this.boundingBox=a.clone());const o=t.boundingSphere;return null!==o&&(this.boundingSphere=o.clone()),this.drawRange.start=t.drawRange.start,this.drawRange.count=t.drawRange.count,this.userData=t.userData,this}dispose(){this.dispatchEvent({type:"dispose"})}}const fs=new en,vs=new tn,bs=new qi,ys=new Ci,xs=new Ci,_s=new Ci,Es=new Ci,Ss=new Ci,Cs=new Ci,ws=new Ci,Is=new Ci;class Ms extends Tn{constructor(t=new gs,e=new $n){super(),this.isMesh=!0,this.type="Mesh",this.geometry=t,this.material=e,this.morphTargetDictionary=void 0,this.morphTargetInfluences=void 0,this.updateMorphTargets()}copy(t,e){return super.copy(t,e),void 0!==t.morphTargetInfluences&&(this.morphTargetInfluences=t.morphTargetInfluences.slice()),void 0!==t.morphTargetDictionary&&(this.morphTargetDictionary=Object.assign({},t.morphTargetDictionary)),this.material=Array.isArray(t.material)?t.material.slice():t.material,this.geometry=t.geometry,this}updateMorphTargets(){const t=this.geometry.morphAttributes,e=Object.keys(t);if(e.length>0){const i=t[e[0]];if(void 0!==i){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let t=0,e=i.length;t<e;t++){const e=i[t].name||String(t);this.morphTargetInfluences.push(0),this.morphTargetDictionary[e]=t}}}}getVertexPosition(t,e){const i=this.geometry,n=i.attributes.position,s=i.morphAttributes.position,r=i.morphTargetsRelative;e.fromBufferAttribute(n,t);const a=this.morphTargetInfluences;if(s&&a){Cs.set(0,0,0);for(let i=0,n=s.length;i<n;i++){const n=a[i],o=s[i];0!==n&&(Ss.fromBufferAttribute(o,t),r?Cs.addScaledVector(Ss,n):Cs.addScaledVector(Ss.sub(e),n))}e.add(Cs)}return e}raycast(t,e){const i=this.geometry,n=this.material,s=this.matrixWorld;if(void 0!==n){if(null===i.boundingSphere&&i.computeBoundingSphere(),bs.copy(i.boundingSphere),bs.applyMatrix4(s),vs.copy(t.ray).recast(t.near),!1===bs.containsPoint(vs.origin)){if(null===vs.intersectSphere(bs,ys))return;if(vs.origin.distanceToSquared(ys)>(t.far-t.near)**2)return}fs.copy(s).invert(),vs.copy(t.ray).applyMatrix4(fs),null!==i.boundingBox&&!1===vs.intersectsBox(i.boundingBox)||this._computeIntersections(t,e,vs)}}_computeIntersections(t,e,i){let n;const s=this.geometry,r=this.material,a=s.index,o=s.attributes.position,l=s.attributes.uv,c=s.attributes.uv1,h=s.attributes.normal,u=s.groups,d=s.drawRange;if(null!==a)if(Array.isArray(r))for(let s=0,o=u.length;s<o;s++){const o=u[s],p=r[o.materialIndex];for(let s=Math.max(o.start,d.start),r=Math.min(a.count,Math.min(o.start+o.count,d.start+d.count));s<r;s+=3){n=Ts(this,p,t,i,l,c,h,a.getX(s),a.getX(s+1),a.getX(s+2)),n&&(n.faceIndex=Math.floor(s/3),n.face.materialIndex=o.materialIndex,e.push(n))}}else{for(let s=Math.max(0,d.start),o=Math.min(a.count,d.start+d.count);s<o;s+=3){n=Ts(this,r,t,i,l,c,h,a.getX(s),a.getX(s+1),a.getX(s+2)),n&&(n.faceIndex=Math.floor(s/3),e.push(n))}}else if(void 0!==o)if(Array.isArray(r))for(let s=0,a=u.length;s<a;s++){const a=u[s],p=r[a.materialIndex];for(let s=Math.max(a.start,d.start),r=Math.min(o.count,Math.min(a.start+a.count,d.start+d.count));s<r;s+=3){n=Ts(this,p,t,i,l,c,h,s,s+1,s+2),n&&(n.faceIndex=Math.floor(s/3),n.face.materialIndex=a.materialIndex,e.push(n))}}else{for(let s=Math.max(0,d.start),a=Math.min(o.count,d.start+d.count);s<a;s+=3){n=Ts(this,r,t,i,l,c,h,s,s+1,s+2),n&&(n.faceIndex=Math.floor(s/3),e.push(n))}}}}function Ts(t,e,i,n,s,r,a,o,l,c){t.getVertexPosition(o,xs),t.getVertexPosition(l,_s),t.getVertexPosition(c,Es);const h=function(t,e,i,n,s,r,a,o){let l;if(l=1===e.side?n.intersectTriangle(a,r,s,!0,o):n.intersectTriangle(s,r,a,0===e.side,o),null===l)return null;Is.copy(o),Is.applyMatrix4(t.matrixWorld);const c=i.ray.origin.distanceTo(Is);return c<i.near||c>i.far?null:{distance:c,point:Is.clone(),object:t}}(t,e,i,n,xs,_s,Es,ws);if(h){const t=new Ci;zn.getBarycoord(ws,xs,_s,Es,t),s&&(h.uv=zn.getInterpolatedAttribute(s,o,l,c,t,new $e)),r&&(h.uv1=zn.getInterpolatedAttribute(r,o,l,c,t,new $e)),a&&(h.normal=zn.getInterpolatedAttribute(a,o,l,c,t,new Ci),h.normal.dot(n.direction)>0&&h.normal.multiplyScalar(-1));const e={a:o,b:l,c:c,normal:new Ci,materialIndex:0};zn.getNormal(xs,_s,Es,e.normal),h.face=e,h.barycoord=t}return h}class Bs extends gs{constructor(t=1,e=1,i=1,n=1,s=1,r=1){super(),this.type="BoxGeometry",this.parameters={width:t,height:e,depth:i,widthSegments:n,heightSegments:s,depthSegments:r};const a=this;n=Math.floor(n),s=Math.floor(s),r=Math.floor(r);const o=[],l=[],c=[],h=[];let u=0,d=0;function p(t,e,i,n,s,r,p,A,m,g,f){const v=r/m,b=p/g,y=r/2,x=p/2,_=A/2,E=m+1,S=g+1;let C=0,w=0;const I=new Ci;for(let r=0;r<S;r++){const a=r*b-x;for(let o=0;o<E;o++){const u=o*v-y;I[t]=u*n,I[e]=a*s,I[i]=_,l.push(I.x,I.y,I.z),I[t]=0,I[e]=0,I[i]=A>0?1:-1,c.push(I.x,I.y,I.z),h.push(o/m),h.push(1-r/g),C+=1}}for(let t=0;t<g;t++)for(let e=0;e<m;e++){const i=u+e+E*t,n=u+e+E*(t+1),s=u+(e+1)+E*(t+1),r=u+(e+1)+E*t;o.push(i,n,r),o.push(n,s,r),w+=6}a.addGroup(d,w,f),d+=w,u+=C}p("z","y","x",-1,-1,i,e,t,r,s,0),p("z","y","x",1,-1,i,e,-t,r,s,1),p("x","z","y",1,1,t,i,e,n,r,2),p("x","z","y",1,-1,t,i,-e,n,r,3),p("x","y","z",1,-1,t,e,i,n,s,4),p("x","y","z",-1,-1,t,e,-i,n,s,5),this.setIndex(o),this.setAttribute("position",new ls(l,3)),this.setAttribute("normal",new ls(c,3)),this.setAttribute("uv",new ls(h,2))}copy(t){return super.copy(t),this.parameters=Object.assign({},t.parameters),this}static fromJSON(t){return new Bs(t.width,t.height,t.depth,t.widthSegments,t.heightSegments,t.depthSegments)}}function Rs(t){const e={};for(const i in t){e[i]={};for(const n in t[i]){const s=t[i][n];s&&(s.isColor||s.isMatrix3||s.isMatrix4||s.isVector2||s.isVector3||s.isVector4||s.isTexture||s.isQuaternion)?s.isRenderTargetTexture?(console.warn("UniformsUtils: Textures of render targets cannot be cloned via cloneUniforms() or mergeUniforms()."),e[i][n]=null):e[i][n]=s.clone():Array.isArray(s)?e[i][n]=s.slice():e[i][n]=s}}return e}function Ds(t){const e={};for(let i=0;i<t.length;i++){const n=Rs(t[i]);for(const t in n)e[t]=n[t]}return e}function Ls(t){const e=t.getRenderTarget();return null===e?t.outputColorSpace:!0===e.isXRRenderTarget?e.texture.colorSpace:ci.workingColorSpace}const Ps={clone:Rs,merge:Ds};class Us extends Jn{constructor(t){super(),this.isShaderMaterial=!0,this.type="ShaderMaterial",this.defines={},this.uniforms={},this.uniformsGroups=[],this.vertexShader="void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}",this.fragmentShader="void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}",this.linewidth=1,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.lights=!1,this.clipping=!1,this.forceSinglePass=!0,this.extensions={clipCullDistance:!1,multiDraw:!1},this.defaultAttributeValues={color:[1,1,1],uv:[0,0],uv1:[0,0]},this.index0AttributeName=void 0,this.uniformsNeedUpdate=!1,this.glslVersion=null,void 0!==t&&this.setValues(t)}copy(t){return super.copy(t),this.fragmentShader=t.fragmentShader,this.vertexShader=t.vertexShader,this.uniforms=Rs(t.uniforms),this.uniformsGroups=function(t){const e=[];for(let i=0;i<t.length;i++)e.push(t[i].clone());return e}(t.uniformsGroups),this.defines=Object.assign({},t.defines),this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.fog=t.fog,this.lights=t.lights,this.clipping=t.clipping,this.extensions=Object.assign({},t.extensions),this.glslVersion=t.glslVersion,this}toJSON(t){const e=super.toJSON(t);e.glslVersion=this.glslVersion,e.uniforms={};for(const i in this.uniforms){const n=this.uniforms[i].value;n&&n.isTexture?e.uniforms[i]={type:"t",value:n.toJSON(t).uuid}:n&&n.isColor?e.uniforms[i]={type:"c",value:n.getHex()}:n&&n.isVector2?e.uniforms[i]={type:"v2",value:n.toArray()}:n&&n.isVector3?e.uniforms[i]={type:"v3",value:n.toArray()}:n&&n.isVector4?e.uniforms[i]={type:"v4",value:n.toArray()}:n&&n.isMatrix3?e.uniforms[i]={type:"m3",value:n.toArray()}:n&&n.isMatrix4?e.uniforms[i]={type:"m4",value:n.toArray()}:e.uniforms[i]={value:n}}Object.keys(this.defines).length>0&&(e.defines=this.defines),e.vertexShader=this.vertexShader,e.fragmentShader=this.fragmentShader,e.lights=this.lights,e.clipping=this.clipping;const i={};for(const t in this.extensions)!0===this.extensions[t]&&(i[t]=!0);return Object.keys(i).length>0&&(e.extensions=i),e}}class Fs extends Tn{constructor(){super(),this.isCamera=!0,this.type="Camera",this.matrixWorldInverse=new en,this.projectionMatrix=new en,this.projectionMatrixInverse=new en,this.coordinateSystem=Oe}copy(t,e){return super.copy(t,e),this.matrixWorldInverse.copy(t.matrixWorldInverse),this.projectionMatrix.copy(t.projectionMatrix),this.projectionMatrixInverse.copy(t.projectionMatrixInverse),this.coordinateSystem=t.coordinateSystem,this}getWorldDirection(t){return super.getWorldDirection(t).negate()}updateMatrixWorld(t){super.updateMatrixWorld(t),this.matrixWorldInverse.copy(this.matrixWorld).invert()}updateWorldMatrix(t,e){super.updateWorldMatrix(t,e),this.matrixWorldInverse.copy(this.matrixWorld).invert()}clone(){return(new this.constructor).copy(this)}}const Ns=new Ci,Os=new $e,Qs=new $e;class ks extends Fs{constructor(t=50,e=1,i=.1,n=2e3){super(),this.isPerspectiveCamera=!0,this.type="PerspectiveCamera",this.fov=t,this.zoom=1,this.near=i,this.far=n,this.focus=10,this.aspect=e,this.view=null,this.filmGauge=35,this.filmOffset=0,this.updateProjectionMatrix()}copy(t,e){return super.copy(t,e),this.fov=t.fov,this.zoom=t.zoom,this.near=t.near,this.far=t.far,this.focus=t.focus,this.aspect=t.aspect,this.view=null===t.view?null:Object.assign({},t.view),this.filmGauge=t.filmGauge,this.filmOffset=t.filmOffset,this}setFocalLength(t){const e=.5*this.getFilmHeight()/t;this.fov=2*Ve*Math.atan(e),this.updateProjectionMatrix()}getFocalLength(){const t=Math.tan(.5*ze*this.fov);return.5*this.getFilmHeight()/t}getEffectiveFOV(){return 2*Ve*Math.atan(Math.tan(.5*ze*this.fov)/this.zoom)}getFilmWidth(){return this.filmGauge*Math.min(this.aspect,1)}getFilmHeight(){return this.filmGauge/Math.max(this.aspect,1)}getViewBounds(t,e,i){Ns.set(-1,-1,.5).applyMatrix4(this.projectionMatrixInverse),e.set(Ns.x,Ns.y).multiplyScalar(-t/Ns.z),Ns.set(1,1,.5).applyMatrix4(this.projectionMatrixInverse),i.set(Ns.x,Ns.y).multiplyScalar(-t/Ns.z)}getViewSize(t,e){return this.getViewBounds(t,Os,Qs),e.subVectors(Qs,Os)}setViewOffset(t,e,i,n,s,r){this.aspect=t/e,null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1}),this.view.enabled=!0,this.view.fullWidth=t,this.view.fullHeight=e,this.view.offsetX=i,this.view.offsetY=n,this.view.width=s,this.view.height=r,this.updateProjectionMatrix()}clearViewOffset(){null!==this.view&&(this.view.enabled=!1),this.updateProjectionMatrix()}updateProjectionMatrix(){const t=this.near;let e=t*Math.tan(.5*ze*this.fov)/this.zoom,i=2*e,n=this.aspect*i,s=-.5*n;const r=this.view;if(null!==this.view&&this.view.enabled){const t=r.fullWidth,a=r.fullHeight;s+=r.offsetX*n/t,e-=r.offsetY*i/a,n*=r.width/t,i*=r.height/a}const a=this.filmOffset;0!==a&&(s+=t*a/this.getFilmWidth()),this.projectionMatrix.makePerspective(s,s+n,e,e-i,t,this.far,this.coordinateSystem),this.projectionMatrixInverse.copy(this.projectionMatrix).invert()}toJSON(t){const e=super.toJSON(t);return e.object.fov=this.fov,e.object.zoom=this.zoom,e.object.near=this.near,e.object.far=this.far,e.object.focus=this.focus,e.object.aspect=this.aspect,null!==this.view&&(e.object.view=Object.assign({},this.view)),e.object.filmGauge=this.filmGauge,e.object.filmOffset=this.filmOffset,e}}const Gs=-90;class Hs extends Tn{constructor(t,e,i){super(),this.type="CubeCamera",this.renderTarget=i,this.coordinateSystem=null,this.activeMipmapLevel=0;const n=new ks(Gs,1,t,e);n.layers=this.layers,this.add(n);const s=new ks(Gs,1,t,e);s.layers=this.layers,this.add(s);const r=new ks(Gs,1,t,e);r.layers=this.layers,this.add(r);const a=new ks(Gs,1,t,e);a.layers=this.layers,this.add(a);const o=new ks(Gs,1,t,e);o.layers=this.layers,this.add(o);const l=new ks(Gs,1,t,e);l.layers=this.layers,this.add(l)}updateCoordinateSystem(){const t=this.coordinateSystem,e=this.children.concat(),[i,n,s,r,a,o]=e;for(const t of e)this.remove(t);if(t===Oe)i.up.set(0,1,0),i.lookAt(1,0,0),n.up.set(0,1,0),n.lookAt(-1,0,0),s.up.set(0,0,-1),s.lookAt(0,1,0),r.up.set(0,0,1),r.lookAt(0,-1,0),a.up.set(0,1,0),a.lookAt(0,0,1),o.up.set(0,1,0),o.lookAt(0,0,-1);else{if(t!==Qe)throw new Error("THREE.CubeCamera.updateCoordinateSystem(): Invalid coordinate system: "+t);i.up.set(0,-1,0),i.lookAt(-1,0,0),n.up.set(0,-1,0),n.lookAt(1,0,0),s.up.set(0,0,1),s.lookAt(0,1,0),r.up.set(0,0,-1),r.lookAt(0,-1,0),a.up.set(0,-1,0),a.lookAt(0,0,1),o.up.set(0,-1,0),o.lookAt(0,0,-1)}for(const t of e)this.add(t),t.updateMatrixWorld()}update(t,e){null===this.parent&&this.updateMatrixWorld();const{renderTarget:i,activeMipmapLevel:n}=this;this.coordinateSystem!==t.coordinateSystem&&(this.coordinateSystem=t.coordinateSystem,this.updateCoordinateSystem());const[s,r,a,o,l,c]=this.children,h=t.getRenderTarget(),u=t.getActiveCubeFace(),d=t.getActiveMipmapLevel(),p=t.xr.enabled;t.xr.enabled=!1;const A=i.texture.generateMipmaps;i.texture.generateMipmaps=!1,t.setRenderTarget(i,0,n),t.render(e,s),t.setRenderTarget(i,1,n),t.render(e,r),t.setRenderTarget(i,2,n),t.render(e,a),t.setRenderTarget(i,3,n),t.render(e,o),t.setRenderTarget(i,4,n),t.render(e,l),i.texture.generateMipmaps=A,t.setRenderTarget(i,5,n),t.render(e,c),t.setRenderTarget(h,u,d),t.xr.enabled=p,i.texture.needsPMREMUpdate=!0}}class zs extends vi{constructor(t,e,i,n,s,r,a,o,l,c){super(t=void 0!==t?t:[],e=void 0!==e?e:it,i,n,s,r,a,o,l,c),this.isCubeTexture=!0,this.flipY=!1}get images(){return this.image}set images(t){this.image=t}}class Vs extends xi{constructor(t=1,e={}){super(t,t,e),this.isWebGLCubeRenderTarget=!0;const i={width:t,height:t,depth:1},n=[i,i,i,i,i,i];this.texture=new zs(n,e.mapping,e.wrapS,e.wrapT,e.magFilter,e.minFilter,e.format,e.type,e.anisotropy,e.colorSpace),this.texture.isRenderTargetTexture=!0,this.texture.generateMipmaps=void 0!==e.generateMipmaps&&e.generateMipmaps,this.texture.minFilter=void 0!==e.minFilter?e.minFilter:dt}fromEquirectangularTexture(t,e){this.texture.type=e.type,this.texture.colorSpace=e.colorSpace,this.texture.generateMipmaps=e.generateMipmaps,this.texture.minFilter=e.minFilter,this.texture.magFilter=e.magFilter;const i={uniforms:{tEquirect:{value:null}},vertexShader:"\n\n\t\t\t\tvarying vec3 vWorldDirection;\n\n\t\t\t\tvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\n\t\t\t\t\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n\n\t\t\t\t}\n\n\t\t\t\tvoid main() {\n\n\t\t\t\t\tvWorldDirection = transformDirection( position, modelMatrix );\n\n\t\t\t\t\t#include <begin_vertex>\n\t\t\t\t\t#include <project_vertex>\n\n\t\t\t\t}\n\t\t\t",fragmentShader:"\n\n\t\t\t\tuniform sampler2D tEquirect;\n\n\t\t\t\tvarying vec3 vWorldDirection;\n\n\t\t\t\t#include <common>\n\n\t\t\t\tvoid main() {\n\n\t\t\t\t\tvec3 direction = normalize( vWorldDirection );\n\n\t\t\t\t\tvec2 sampleUV = equirectUv( direction );\n\n\t\t\t\t\tgl_FragColor = texture2D( tEquirect, sampleUV );\n\n\t\t\t\t}\n\t\t\t"},n=new Bs(5,5,5),s=new Us({name:"CubemapFromEquirect",uniforms:Rs(i.uniforms),vertexShader:i.vertexShader,fragmentShader:i.fragmentShader,side:1,blending:0});s.uniforms.tEquirect.value=e;const r=new Ms(n,s),a=e.minFilter;e.minFilter===At&&(e.minFilter=dt);return new Hs(1,10,this).update(t,r),e.minFilter=a,r.geometry.dispose(),r.material.dispose(),this}clear(t,e,i,n){const s=t.getRenderTarget();for(let s=0;s<6;s++)t.setRenderTarget(this,s),t.clear(e,i,n);t.setRenderTarget(s)}}class Ws extends Tn{constructor(){super(),this.isGroup=!0,this.type="Group"}}const qs={type:"move"};class js{constructor(){this._targetRay=null,this._grip=null,this._hand=null}getHandSpace(){return null===this._hand&&(this._hand=new Ws,this._hand.matrixAutoUpdate=!1,this._hand.visible=!1,this._hand.joints={},this._hand.inputState={pinching:!1}),this._hand}getTargetRaySpace(){return null===this._targetRay&&(this._targetRay=new Ws,this._targetRay.matrixAutoUpdate=!1,this._targetRay.visible=!1,this._targetRay.hasLinearVelocity=!1,this._targetRay.linearVelocity=new Ci,this._targetRay.hasAngularVelocity=!1,this._targetRay.angularVelocity=new Ci),this._targetRay}getGripSpace(){return null===this._grip&&(this._grip=new Ws,this._grip.matrixAutoUpdate=!1,this._grip.visible=!1,this._grip.hasLinearVelocity=!1,this._grip.linearVelocity=new Ci,this._grip.hasAngularVelocity=!1,this._grip.angularVelocity=new Ci),this._grip}dispatchEvent(t){return null!==this._targetRay&&this._targetRay.dispatchEvent(t),null!==this._grip&&this._grip.dispatchEvent(t),null!==this._hand&&this._hand.dispatchEvent(t),this}connect(t){if(t&&t.hand){const e=this._hand;if(e)for(const i of t.hand.values())this._getHandJoint(e,i)}return this.dispatchEvent({type:"connected",data:t}),this}disconnect(t){return this.dispatchEvent({type:"disconnected",data:t}),null!==this._targetRay&&(this._targetRay.visible=!1),null!==this._grip&&(this._grip.visible=!1),null!==this._hand&&(this._hand.visible=!1),this}update(t,e,i){let n=null,s=null,r=null;const a=this._targetRay,o=this._grip,l=this._hand;if(t&&"visible-blurred"!==e.session.visibilityState){if(l&&t.hand){r=!0;for(const n of t.hand.values()){const t=e.getJointPose(n,i),s=this._getHandJoint(l,n);null!==t&&(s.matrix.fromArray(t.transform.matrix),s.matrix.decompose(s.position,s.rotation,s.scale),s.matrixWorldNeedsUpdate=!0,s.jointRadius=t.radius),s.visible=null!==t}const n=l.joints["index-finger-tip"],s=l.joints["thumb-tip"],a=n.position.distanceTo(s.position),o=.02,c=.005;l.inputState.pinching&&a>o+c?(l.inputState.pinching=!1,this.dispatchEvent({type:"pinchend",handedness:t.handedness,target:this})):!l.inputState.pinching&&a<=o-c&&(l.inputState.pinching=!0,this.dispatchEvent({type:"pinchstart",handedness:t.handedness,target:this}))}else null!==o&&t.gripSpace&&(s=e.getPose(t.gripSpace,i),null!==s&&(o.matrix.fromArray(s.transform.matrix),o.matrix.decompose(o.position,o.rotation,o.scale),o.matrixWorldNeedsUpdate=!0,s.linearVelocity?(o.hasLinearVelocity=!0,o.linearVelocity.copy(s.linearVelocity)):o.hasLinearVelocity=!1,s.angularVelocity?(o.hasAngularVelocity=!0,o.angularVelocity.copy(s.angularVelocity)):o.hasAngularVelocity=!1));null!==a&&(n=e.getPose(t.targetRaySpace,i),null===n&&null!==s&&(n=s),null!==n&&(a.matrix.fromArray(n.transform.matrix),a.matrix.decompose(a.position,a.rotation,a.scale),a.matrixWorldNeedsUpdate=!0,n.linearVelocity?(a.hasLinearVelocity=!0,a.linearVelocity.copy(n.linearVelocity)):a.hasLinearVelocity=!1,n.angularVelocity?(a.hasAngularVelocity=!0,a.angularVelocity.copy(n.angularVelocity)):a.hasAngularVelocity=!1,this.dispatchEvent(qs)))}return null!==a&&(a.visible=null!==n),null!==o&&(o.visible=null!==s),null!==l&&(l.visible=null!==r),this}_getHandJoint(t,e){if(void 0===t.joints[e.jointName]){const i=new Ws;i.matrixAutoUpdate=!1,i.visible=!1,t.joints[e.jointName]=i,t.add(i)}return t.joints[e.jointName]}}class Xs extends Tn{constructor(){super(),this.isScene=!0,this.type="Scene",this.background=null,this.environment=null,this.fog=null,this.backgroundBlurriness=0,this.backgroundIntensity=1,this.backgroundRotation=new dn,this.environmentIntensity=1,this.environmentRotation=new dn,this.overrideMaterial=null,"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe",{detail:this}))}copy(t,e){return super.copy(t,e),null!==t.background&&(this.background=t.background.clone()),null!==t.environment&&(this.environment=t.environment.clone()),null!==t.fog&&(this.fog=t.fog.clone()),this.backgroundBlurriness=t.backgroundBlurriness,this.backgroundIntensity=t.backgroundIntensity,this.backgroundRotation.copy(t.backgroundRotation),this.environmentIntensity=t.environmentIntensity,this.environmentRotation.copy(t.environmentRotation),null!==t.overrideMaterial&&(this.overrideMaterial=t.overrideMaterial.clone()),this.matrixAutoUpdate=t.matrixAutoUpdate,this}toJSON(t){const e=super.toJSON(t);return null!==this.fog&&(e.object.fog=this.fog.toJSON()),this.backgroundBlurriness>0&&(e.object.backgroundBlurriness=this.backgroundBlurriness),1!==this.backgroundIntensity&&(e.object.backgroundIntensity=this.backgroundIntensity),e.object.backgroundRotation=this.backgroundRotation.toArray(),1!==this.environmentIntensity&&(e.object.environmentIntensity=this.environmentIntensity),e.object.environmentRotation=this.environmentRotation.toArray(),e}}class Ys{constructor(t,e){this.isInterleavedBuffer=!0,this.array=t,this.stride=e,this.count=void 0!==t?t.length/e:0,this.usage=Fe,this.updateRanges=[],this.version=0,this.uuid=We()}onUploadCallback(){}set needsUpdate(t){!0===t&&this.version++}setUsage(t){return this.usage=t,this}addUpdateRange(t,e){this.updateRanges.push({start:t,count:e})}clearUpdateRanges(){this.updateRanges.length=0}copy(t){return this.array=new t.array.constructor(t.array),this.count=t.count,this.stride=t.stride,this.usage=t.usage,this}copyAt(t,e,i){t*=this.stride,i*=e.stride;for(let n=0,s=this.stride;n<s;n++)this.array[t+n]=e.array[i+n];return this}set(t,e=0){return this.array.set(t,e),this}clone(t){void 0===t.arrayBuffers&&(t.arrayBuffers={}),void 0===this.array.buffer._uuid&&(this.array.buffer._uuid=We()),void 0===t.arrayBuffers[this.array.buffer._uuid]&&(t.arrayBuffers[this.array.buffer._uuid]=this.array.slice(0).buffer);const e=new this.array.constructor(t.arrayBuffers[this.array.buffer._uuid]),i=new this.constructor(e,this.stride);return i.setUsage(this.usage),i}onUpload(t){return this.onUploadCallback=t,this}toJSON(t){return void 0===t.arrayBuffers&&(t.arrayBuffers={}),void 0===this.array.buffer._uuid&&(this.array.buffer._uuid=We()),void 0===t.arrayBuffers[this.array.buffer._uuid]&&(t.arrayBuffers[this.array.buffer._uuid]=Array.from(new Uint32Array(this.array.buffer))),{uuid:this.uuid,buffer:this.array.buffer._uuid,type:this.array.constructor.name,stride:this.stride}}}const Ks=new Ci;class Js{constructor(t,e,i,n=!1){this.isInterleavedBufferAttribute=!0,this.name="",this.data=t,this.itemSize=e,this.offset=i,this.normalized=n}get count(){return this.data.count}get array(){return this.data.array}set needsUpdate(t){this.data.needsUpdate=t}applyMatrix4(t){for(let e=0,i=this.data.count;e<i;e++)Ks.fromBufferAttribute(this,e),Ks.applyMatrix4(t),this.setXYZ(e,Ks.x,Ks.y,Ks.z);return this}applyNormalMatrix(t){for(let e=0,i=this.count;e<i;e++)Ks.fromBufferAttribute(this,e),Ks.applyNormalMatrix(t),this.setXYZ(e,Ks.x,Ks.y,Ks.z);return this}transformDirection(t){for(let e=0,i=this.count;e<i;e++)Ks.fromBufferAttribute(this,e),Ks.transformDirection(t),this.setXYZ(e,Ks.x,Ks.y,Ks.z);return this}getComponent(t,e){let i=this.array[t*this.data.stride+this.offset+e];return this.normalized&&(i=Ye(i,this.array)),i}setComponent(t,e,i){return this.normalized&&(i=Ke(i,this.array)),this.data.array[t*this.data.stride+this.offset+e]=i,this}setX(t,e){return this.normalized&&(e=Ke(e,this.array)),this.data.array[t*this.data.stride+this.offset]=e,this}setY(t,e){return this.normalized&&(e=Ke(e,this.array)),this.data.array[t*this.data.stride+this.offset+1]=e,this}setZ(t,e){return this.normalized&&(e=Ke(e,this.array)),this.data.array[t*this.data.stride+this.offset+2]=e,this}setW(t,e){return this.normalized&&(e=Ke(e,this.array)),this.data.array[t*this.data.stride+this.offset+3]=e,this}getX(t){let e=this.data.array[t*this.data.stride+this.offset];return this.normalized&&(e=Ye(e,this.array)),e}getY(t){let e=this.data.array[t*this.data.stride+this.offset+1];return this.normalized&&(e=Ye(e,this.array)),e}getZ(t){let e=this.data.array[t*this.data.stride+this.offset+2];return this.normalized&&(e=Ye(e,this.array)),e}getW(t){let e=this.data.array[t*this.data.stride+this.offset+3];return this.normalized&&(e=Ye(e,this.array)),e}setXY(t,e,i){return t=t*this.data.stride+this.offset,this.normalized&&(e=Ke(e,this.array),i=Ke(i,this.array)),this.data.array[t+0]=e,this.data.array[t+1]=i,this}setXYZ(t,e,i,n){return t=t*this.data.stride+this.offset,this.normalized&&(e=Ke(e,this.array),i=Ke(i,this.array),n=Ke(n,this.array)),this.data.array[t+0]=e,this.data.array[t+1]=i,this.data.array[t+2]=n,this}setXYZW(t,e,i,n,s){return t=t*this.data.stride+this.offset,this.normalized&&(e=Ke(e,this.array),i=Ke(i,this.array),n=Ke(n,this.array),s=Ke(s,this.array)),this.data.array[t+0]=e,this.data.array[t+1]=i,this.data.array[t+2]=n,this.data.array[t+3]=s,this}clone(t){if(void 0===t){console.log("THREE.InterleavedBufferAttribute.clone(): Cloning an interleaved buffer attribute will de-interleave buffer data.");const t=[];for(let e=0;e<this.count;e++){const i=e*this.data.stride+this.offset;for(let e=0;e<this.itemSize;e++)t.push(this.data.array[i+e])}return new rs(new this.array.constructor(t),this.itemSize,this.normalized)}return void 0===t.interleavedBuffers&&(t.interleavedBuffers={}),void 0===t.interleavedBuffers[this.data.uuid]&&(t.interleavedBuffers[this.data.uuid]=this.data.clone(t)),new Js(t.interleavedBuffers[this.data.uuid],this.itemSize,this.offset,this.normalized)}toJSON(t){if(void 0===t){console.log("THREE.InterleavedBufferAttribute.toJSON(): Serializing an interleaved buffer attribute will de-interleave buffer data.");const t=[];for(let e=0;e<this.count;e++){const i=e*this.data.stride+this.offset;for(let e=0;e<this.itemSize;e++)t.push(this.data.array[i+e])}return{itemSize:this.itemSize,type:this.array.constructor.name,array:t,normalized:this.normalized}}return void 0===t.interleavedBuffers&&(t.interleavedBuffers={}),void 0===t.interleavedBuffers[this.data.uuid]&&(t.interleavedBuffers[this.data.uuid]=this.data.toJSON(t)),{isInterleavedBufferAttribute:!0,itemSize:this.itemSize,data:this.data.uuid,offset:this.offset,normalized:this.normalized}}}const $s=new Ci,Zs=new bi,tr=new bi,er=new Ci,ir=new en,nr=new Ci,sr=new qi,rr=new en,ar=new tn;class or extends Ms{constructor(t,e){super(t,e),this.isSkinnedMesh=!0,this.type="SkinnedMesh",this.bindMode=tt,this.bindMatrix=new en,this.bindMatrixInverse=new en,this.boundingBox=null,this.boundingSphere=null}computeBoundingBox(){const t=this.geometry;null===this.boundingBox&&(this.boundingBox=new Mi),this.boundingBox.makeEmpty();const e=t.getAttribute("position");for(let t=0;t<e.count;t++)this.getVertexPosition(t,nr),this.boundingBox.expandByPoint(nr)}computeBoundingSphere(){const t=this.geometry;null===this.boundingSphere&&(this.boundingSphere=new qi),this.boundingSphere.makeEmpty();const e=t.getAttribute("position");for(let t=0;t<e.count;t++)this.getVertexPosition(t,nr),this.boundingSphere.expandByPoint(nr)}copy(t,e){return super.copy(t,e),this.bindMode=t.bindMode,this.bindMatrix.copy(t.bindMatrix),this.bindMatrixInverse.copy(t.bindMatrixInverse),this.skeleton=t.skeleton,null!==t.boundingBox&&(this.boundingBox=t.boundingBox.clone()),null!==t.boundingSphere&&(this.boundingSphere=t.boundingSphere.clone()),this}raycast(t,e){const i=this.material,n=this.matrixWorld;void 0!==i&&(null===this.boundingSphere&&this.computeBoundingSphere(),sr.copy(this.boundingSphere),sr.applyMatrix4(n),!1!==t.ray.intersectsSphere(sr)&&(rr.copy(n).invert(),ar.copy(t.ray).applyMatrix4(rr),null!==this.boundingBox&&!1===ar.intersectsBox(this.boundingBox)||this._computeIntersections(t,e,ar)))}getVertexPosition(t,e){return super.getVertexPosition(t,e),this.applyBoneTransform(t,e),e}bind(t,e){this.skeleton=t,void 0===e&&(this.updateMatrixWorld(!0),this.skeleton.calculateInverses(),e=this.matrixWorld),this.bindMatrix.copy(e),this.bindMatrixInverse.copy(e).invert()}pose(){this.skeleton.pose()}normalizeSkinWeights(){const t=new bi,e=this.geometry.attributes.skinWeight;for(let i=0,n=e.count;i<n;i++){t.fromBufferAttribute(e,i);const n=1/t.manhattanLength();n!==1/0?t.multiplyScalar(n):t.set(1,0,0,0),e.setXYZW(i,t.x,t.y,t.z,t.w)}}updateMatrixWorld(t){super.updateMatrixWorld(t),this.bindMode===tt?this.bindMatrixInverse.copy(this.matrixWorld).invert():"detached"===this.bindMode?this.bindMatrixInverse.copy(this.bindMatrix).invert():console.warn("THREE.SkinnedMesh: Unrecognized bindMode: "+this.bindMode)}applyBoneTransform(t,e){const i=this.skeleton,n=this.geometry;Zs.fromBufferAttribute(n.attributes.skinIndex,t),tr.fromBufferAttribute(n.attributes.skinWeight,t),$s.copy(e).applyMatrix4(this.bindMatrix),e.set(0,0,0);for(let t=0;t<4;t++){const n=tr.getComponent(t);if(0!==n){const s=Zs.getComponent(t);ir.multiplyMatrices(i.bones[s].matrixWorld,i.boneInverses[s]),e.addScaledVector(er.copy($s).applyMatrix4(ir),n)}}return e.applyMatrix4(this.bindMatrixInverse)}}class lr extends Tn{constructor(){super(),this.isBone=!0,this.type="Bone"}}class cr extends vi{constructor(t=null,e=1,i=1,n,s,r,a,o,l=1003,c=1003,h,u){super(null,r,a,o,l,c,n,s,h,u),this.isDataTexture=!0,this.image={data:t,width:e,height:i},this.generateMipmaps=!1,this.flipY=!1,this.unpackAlignment=1}}const hr=new en,ur=new en;class dr{constructor(t=[],e=[]){this.uuid=We(),this.bones=t.slice(0),this.boneInverses=e,this.boneMatrices=null,this.boneTexture=null,this.init()}init(){const t=this.bones,e=this.boneInverses;if(this.boneMatrices=new Float32Array(16*t.length),0===e.length)this.calculateInverses();else if(t.length!==e.length){console.warn("THREE.Skeleton: Number of inverse bone matrices does not match amount of bones."),this.boneInverses=[];for(let t=0,e=this.bones.length;t<e;t++)this.boneInverses.push(new en)}}calculateInverses(){this.boneInverses.length=0;for(let t=0,e=this.bones.length;t<e;t++){const e=new en;this.bones[t]&&e.copy(this.bones[t].matrixWorld).invert(),this.boneInverses.push(e)}}pose(){for(let t=0,e=this.bones.length;t<e;t++){const e=this.bones[t];e&&e.matrixWorld.copy(this.boneInverses[t]).invert()}for(let t=0,e=this.bones.length;t<e;t++){const e=this.bones[t];e&&(e.parent&&e.parent.isBone?(e.matrix.copy(e.parent.matrixWorld).invert(),e.matrix.multiply(e.matrixWorld)):e.matrix.copy(e.matrixWorld),e.matrix.decompose(e.position,e.quaternion,e.scale))}}update(){const t=this.bones,e=this.boneInverses,i=this.boneMatrices,n=this.boneTexture;for(let n=0,s=t.length;n<s;n++){const s=t[n]?t[n].matrixWorld:ur;hr.multiplyMatrices(s,e[n]),hr.toArray(i,16*n)}null!==n&&(n.needsUpdate=!0)}clone(){return new dr(this.bones,this.boneInverses)}computeBoneTexture(){let t=Math.sqrt(4*this.bones.length);t=4*Math.ceil(t/4),t=Math.max(t,4);const e=new Float32Array(t*t*4);e.set(this.boneMatrices);const i=new cr(e,t,t,It,xt);return i.needsUpdate=!0,this.boneMatrices=e,this.boneTexture=i,this}getBoneByName(t){for(let e=0,i=this.bones.length;e<i;e++){const i=this.bones[e];if(i.name===t)return i}}dispose(){null!==this.boneTexture&&(this.boneTexture.dispose(),this.boneTexture=null)}fromJSON(t,e){this.uuid=t.uuid;for(let i=0,n=t.bones.length;i<n;i++){const n=t.bones[i];let s=e[n];void 0===s&&(console.warn("THREE.Skeleton: No bone found with UUID:",n),s=new lr),this.bones.push(s),this.boneInverses.push((new en).fromArray(t.boneInverses[i]))}return this.init(),this}toJSON(){const t={metadata:{version:4.6,type:"Skeleton",generator:"Skeleton.toJSON"},bones:[],boneInverses:[]};t.uuid=this.uuid;const e=this.bones,i=this.boneInverses;for(let n=0,s=e.length;n<s;n++){const s=e[n];t.bones.push(s.uuid);const r=i[n];t.boneInverses.push(r.toArray())}return t}}class pr extends rs{constructor(t,e,i,n=1){super(t,e,i),this.isInstancedBufferAttribute=!0,this.meshPerAttribute=n}copy(t){return super.copy(t),this.meshPerAttribute=t.meshPerAttribute,this}toJSON(){const t=super.toJSON();return t.meshPerAttribute=this.meshPerAttribute,t.isInstancedBufferAttribute=!0,t}}const Ar=new en,mr=new en,gr=[],fr=new Mi,vr=new en,br=new Ms,yr=new qi;class xr extends Ms{constructor(t,e,i){super(t,e),this.isInstancedMesh=!0,this.instanceMatrix=new pr(new Float32Array(16*i),16),this.instanceColor=null,this.morphTexture=null,this.count=i,this.boundingBox=null,this.boundingSphere=null;for(let t=0;t<i;t++)this.setMatrixAt(t,vr)}computeBoundingBox(){const t=this.geometry,e=this.count;null===this.boundingBox&&(this.boundingBox=new Mi),null===t.boundingBox&&t.computeBoundingBox(),this.boundingBox.makeEmpty();for(let i=0;i<e;i++)this.getMatrixAt(i,Ar),fr.copy(t.boundingBox).applyMatrix4(Ar),this.boundingBox.union(fr)}computeBoundingSphere(){const t=this.geometry,e=this.count;null===this.boundingSphere&&(this.boundingSphere=new qi),null===t.boundingSphere&&t.computeBoundingSphere(),this.boundingSphere.makeEmpty();for(let i=0;i<e;i++)this.getMatrixAt(i,Ar),yr.copy(t.boundingSphere).applyMatrix4(Ar),this.boundingSphere.union(yr)}copy(t,e){return super.copy(t,e),this.instanceMatrix.copy(t.instanceMatrix),null!==t.morphTexture&&(this.morphTexture=t.morphTexture.clone()),null!==t.instanceColor&&(this.instanceColor=t.instanceColor.clone()),this.count=t.count,null!==t.boundingBox&&(this.boundingBox=t.boundingBox.clone()),null!==t.boundingSphere&&(this.boundingSphere=t.boundingSphere.clone()),this}getColorAt(t,e){e.fromArray(this.instanceColor.array,3*t)}getMatrixAt(t,e){e.fromArray(this.instanceMatrix.array,16*t)}getMorphAt(t,e){const i=e.morphTargetInfluences,n=this.morphTexture.source.data.data,s=t*(i.length+1)+1;for(let t=0;t<i.length;t++)i[t]=n[s+t]}raycast(t,e){const i=this.matrixWorld,n=this.count;if(br.geometry=this.geometry,br.material=this.material,void 0!==br.material&&(null===this.boundingSphere&&this.computeBoundingSphere(),yr.copy(this.boundingSphere),yr.applyMatrix4(i),!1!==t.ray.intersectsSphere(yr)))for(let s=0;s<n;s++){this.getMatrixAt(s,Ar),mr.multiplyMatrices(i,Ar),br.matrixWorld=mr,br.raycast(t,gr);for(let t=0,i=gr.length;t<i;t++){const i=gr[t];i.instanceId=s,i.object=this,e.push(i)}gr.length=0}}setColorAt(t,e){null===this.instanceColor&&(this.instanceColor=new pr(new Float32Array(3*this.instanceMatrix.count).fill(1),3)),e.toArray(this.instanceColor.array,3*t)}setMatrixAt(t,e){e.toArray(this.instanceMatrix.array,16*t)}setMorphAt(t,e){const i=e.morphTargetInfluences,n=i.length+1;null===this.morphTexture&&(this.morphTexture=new cr(new Float32Array(n*this.count),n,this.count,Bt,xt));const s=this.morphTexture.source.data.data;let r=0;for(let t=0;t<i.length;t++)r+=i[t];const a=this.geometry.morphTargetsRelative?1:1-r,o=n*t;s[o]=a,s.set(i,o+1)}updateMorphTargets(){}dispose(){this.dispatchEvent({type:"dispose"}),null!==this.morphTexture&&(this.morphTexture.dispose(),this.morphTexture=null)}}const _r=new Ci,Er=new Ci,Sr=new Ze;class Cr{constructor(t=new Ci(1,0,0),e=0){this.isPlane=!0,this.normal=t,this.constant=e}set(t,e){return this.normal.copy(t),this.constant=e,this}setComponents(t,e,i,n){return this.normal.set(t,e,i),this.constant=n,this}setFromNormalAndCoplanarPoint(t,e){return this.normal.copy(t),this.constant=-e.dot(this.normal),this}setFromCoplanarPoints(t,e,i){const n=_r.subVectors(i,e).cross(Er.subVectors(t,e)).normalize();return this.setFromNormalAndCoplanarPoint(n,t),this}copy(t){return this.normal.copy(t.normal),this.constant=t.constant,this}normalize(){const t=1/this.normal.length();return this.normal.multiplyScalar(t),this.constant*=t,this}negate(){return this.constant*=-1,this.normal.negate(),this}distanceToPoint(t){return this.normal.dot(t)+this.constant}distanceToSphere(t){return this.distanceToPoint(t.center)-t.radius}projectPoint(t,e){return e.copy(t).addScaledVector(this.normal,-this.distanceToPoint(t))}intersectLine(t,e){const i=t.delta(_r),n=this.normal.dot(i);if(0===n)return 0===this.distanceToPoint(t.start)?e.copy(t.start):null;const s=-(t.start.dot(this.normal)+this.constant)/n;return s<0||s>1?null:e.copy(t.start).addScaledVector(i,s)}intersectsLine(t){const e=this.distanceToPoint(t.start),i=this.distanceToPoint(t.end);return e<0&&i>0||i<0&&e>0}intersectsBox(t){return t.intersectsPlane(this)}intersectsSphere(t){return t.intersectsPlane(this)}coplanarPoint(t){return t.copy(this.normal).multiplyScalar(-this.constant)}applyMatrix4(t,e){const i=e||Sr.getNormalMatrix(t),n=this.coplanarPoint(_r).applyMatrix4(t),s=this.normal.applyMatrix3(i).normalize();return this.constant=-n.dot(s),this}translate(t){return this.constant-=t.dot(this.normal),this}equals(t){return t.normal.equals(this.normal)&&t.constant===this.constant}clone(){return(new this.constructor).copy(this)}}const wr=new qi,Ir=new Ci;class Mr{constructor(t=new Cr,e=new Cr,i=new Cr,n=new Cr,s=new Cr,r=new Cr){this.planes=[t,e,i,n,s,r]}set(t,e,i,n,s,r){const a=this.planes;return a[0].copy(t),a[1].copy(e),a[2].copy(i),a[3].copy(n),a[4].copy(s),a[5].copy(r),this}copy(t){const e=this.planes;for(let i=0;i<6;i++)e[i].copy(t.planes[i]);return this}setFromProjectionMatrix(t,e=2e3){const i=this.planes,n=t.elements,s=n[0],r=n[1],a=n[2],o=n[3],l=n[4],c=n[5],h=n[6],u=n[7],d=n[8],p=n[9],A=n[10],m=n[11],g=n[12],f=n[13],v=n[14],b=n[15];if(i[0].setComponents(o-s,u-l,m-d,b-g).normalize(),i[1].setComponents(o+s,u+l,m+d,b+g).normalize(),i[2].setComponents(o+r,u+c,m+p,b+f).normalize(),i[3].setComponents(o-r,u-c,m-p,b-f).normalize(),i[4].setComponents(o-a,u-h,m-A,b-v).normalize(),e===Oe)i[5].setComponents(o+a,u+h,m+A,b+v).normalize();else{if(e!==Qe)throw new Error("THREE.Frustum.setFromProjectionMatrix(): Invalid coordinate system: "+e);i[5].setComponents(a,h,A,v).normalize()}return this}intersectsObject(t){if(void 0!==t.boundingSphere)null===t.boundingSphere&&t.computeBoundingSphere(),wr.copy(t.boundingSphere).applyMatrix4(t.matrixWorld);else{const e=t.geometry;null===e.boundingSphere&&e.computeBoundingSphere(),wr.copy(e.boundingSphere).applyMatrix4(t.matrixWorld)}return this.intersectsSphere(wr)}intersectsSprite(t){return wr.center.set(0,0,0),wr.radius=.7071067811865476,wr.applyMatrix4(t.matrixWorld),this.intersectsSphere(wr)}intersectsSphere(t){const e=this.planes,i=t.center,n=-t.radius;for(let t=0;t<6;t++){if(e[t].distanceToPoint(i)<n)return!1}return!0}intersectsBox(t){const e=this.planes;for(let i=0;i<6;i++){const n=e[i];if(Ir.x=n.normal.x>0?t.max.x:t.min.x,Ir.y=n.normal.y>0?t.max.y:t.min.y,Ir.z=n.normal.z>0?t.max.z:t.min.z,n.distanceToPoint(Ir)<0)return!1}return!0}containsPoint(t){const e=this.planes;for(let i=0;i<6;i++)if(e[i].distanceToPoint(t)<0)return!1;return!0}clone(){return(new this.constructor).copy(this)}}class Tr extends Jn{constructor(t){super(),this.isLineBasicMaterial=!0,this.type="LineBasicMaterial",this.color=new Xn(16777215),this.map=null,this.linewidth=1,this.linecap="round",this.linejoin="round",this.fog=!0,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.linewidth=t.linewidth,this.linecap=t.linecap,this.linejoin=t.linejoin,this.fog=t.fog,this}}const Br=new Ci,Rr=new Ci,Dr=new en,Lr=new tn,Pr=new qi,Ur=new Ci,Fr=new Ci;class Nr extends Tn{constructor(t=new gs,e=new Tr){super(),this.isLine=!0,this.type="Line",this.geometry=t,this.material=e,this.morphTargetDictionary=void 0,this.morphTargetInfluences=void 0,this.updateMorphTargets()}copy(t,e){return super.copy(t,e),this.material=Array.isArray(t.material)?t.material.slice():t.material,this.geometry=t.geometry,this}computeLineDistances(){const t=this.geometry;if(null===t.index){const e=t.attributes.position,i=[0];for(let t=1,n=e.count;t<n;t++)Br.fromBufferAttribute(e,t-1),Rr.fromBufferAttribute(e,t),i[t]=i[t-1],i[t]+=Br.distanceTo(Rr);t.setAttribute("lineDistance",new ls(i,1))}else console.warn("THREE.Line.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.");return this}raycast(t,e){const i=this.geometry,n=this.matrixWorld,s=t.params.Line.threshold,r=i.drawRange;if(null===i.boundingSphere&&i.computeBoundingSphere(),Pr.copy(i.boundingSphere),Pr.applyMatrix4(n),Pr.radius+=s,!1===t.ray.intersectsSphere(Pr))return;Dr.copy(n).invert(),Lr.copy(t.ray).applyMatrix4(Dr);const a=s/((this.scale.x+this.scale.y+this.scale.z)/3),o=a*a,l=this.isLineSegments?2:1,c=i.index,h=i.attributes.position;if(null!==c){const i=Math.max(0,r.start),n=Math.min(c.count,r.start+r.count);for(let s=i,r=n-1;s<r;s+=l){const i=c.getX(s),n=c.getX(s+1),r=Or(this,t,Lr,o,i,n,s);r&&e.push(r)}if(this.isLineLoop){const s=c.getX(n-1),r=c.getX(i),a=Or(this,t,Lr,o,s,r,n-1);a&&e.push(a)}}else{const i=Math.max(0,r.start),n=Math.min(h.count,r.start+r.count);for(let s=i,r=n-1;s<r;s+=l){const i=Or(this,t,Lr,o,s,s+1,s);i&&e.push(i)}if(this.isLineLoop){const s=Or(this,t,Lr,o,n-1,i,n-1);s&&e.push(s)}}}updateMorphTargets(){const t=this.geometry.morphAttributes,e=Object.keys(t);if(e.length>0){const i=t[e[0]];if(void 0!==i){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let t=0,e=i.length;t<e;t++){const e=i[t].name||String(t);this.morphTargetInfluences.push(0),this.morphTargetDictionary[e]=t}}}}}function Or(t,e,i,n,s,r,a){const o=t.geometry.attributes.position;Br.fromBufferAttribute(o,s),Rr.fromBufferAttribute(o,r);if(i.distanceSqToSegment(Br,Rr,Ur,Fr)>n)return;Ur.applyMatrix4(t.matrixWorld);const l=e.ray.origin.distanceTo(Ur);return l<e.near||l>e.far?void 0:{distance:l,point:Fr.clone().applyMatrix4(t.matrixWorld),index:a,face:null,faceIndex:null,barycoord:null,object:t}}const Qr=new Ci,kr=new Ci;class Gr extends Nr{constructor(t,e){super(t,e),this.isLineSegments=!0,this.type="LineSegments"}computeLineDistances(){const t=this.geometry;if(null===t.index){const e=t.attributes.position,i=[];for(let t=0,n=e.count;t<n;t+=2)Qr.fromBufferAttribute(e,t),kr.fromBufferAttribute(e,t+1),i[t]=0===t?0:i[t-1],i[t+1]=i[t]+Qr.distanceTo(kr);t.setAttribute("lineDistance",new ls(i,1))}else console.warn("THREE.LineSegments.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.");return this}}class Hr extends Nr{constructor(t,e){super(t,e),this.isLineLoop=!0,this.type="LineLoop"}}class zr extends Jn{constructor(t){super(),this.isPointsMaterial=!0,this.type="PointsMaterial",this.color=new Xn(16777215),this.map=null,this.alphaMap=null,this.size=1,this.sizeAttenuation=!0,this.fog=!0,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.alphaMap=t.alphaMap,this.size=t.size,this.sizeAttenuation=t.sizeAttenuation,this.fog=t.fog,this}}const Vr=new en,Wr=new tn,qr=new qi,jr=new Ci;class Xr extends Tn{constructor(t=new gs,e=new zr){super(),this.isPoints=!0,this.type="Points",this.geometry=t,this.material=e,this.morphTargetDictionary=void 0,this.morphTargetInfluences=void 0,this.updateMorphTargets()}copy(t,e){return super.copy(t,e),this.material=Array.isArray(t.material)?t.material.slice():t.material,this.geometry=t.geometry,this}raycast(t,e){const i=this.geometry,n=this.matrixWorld,s=t.params.Points.threshold,r=i.drawRange;if(null===i.boundingSphere&&i.computeBoundingSphere(),qr.copy(i.boundingSphere),qr.applyMatrix4(n),qr.radius+=s,!1===t.ray.intersectsSphere(qr))return;Vr.copy(n).invert(),Wr.copy(t.ray).applyMatrix4(Vr);const a=s/((this.scale.x+this.scale.y+this.scale.z)/3),o=a*a,l=i.index,c=i.attributes.position;if(null!==l){for(let i=Math.max(0,r.start),s=Math.min(l.count,r.start+r.count);i<s;i++){const s=l.getX(i);jr.fromBufferAttribute(c,s),Yr(jr,s,o,n,t,e,this)}}else{for(let i=Math.max(0,r.start),s=Math.min(c.count,r.start+r.count);i<s;i++)jr.fromBufferAttribute(c,i),Yr(jr,i,o,n,t,e,this)}}updateMorphTargets(){const t=this.geometry.morphAttributes,e=Object.keys(t);if(e.length>0){const i=t[e[0]];if(void 0!==i){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let t=0,e=i.length;t<e;t++){const e=i[t].name||String(t);this.morphTargetInfluences.push(0),this.morphTargetDictionary[e]=t}}}}}function Yr(t,e,i,n,s,r,a){const o=Wr.distanceSqToPoint(t);if(o<i){const i=new Ci;Wr.closestPointToPoint(t,i),i.applyMatrix4(n);const l=s.ray.origin.distanceTo(i);if(l<s.near||l>s.far)return;r.push({distance:l,distanceToRay:Math.sqrt(o),point:i,index:e,face:null,faceIndex:null,barycoord:null,object:a})}}class Kr extends vi{constructor(t,e,i,n,s,r,a,o,l){super(t,e,i,n,s,r,a,o,l),this.isVideoTexture=!0,this.minFilter=void 0!==r?r:dt,this.magFilter=void 0!==s?s:dt,this.generateMipmaps=!1;const c=this;"requestVideoFrameCallback"in t&&t.requestVideoFrameCallback((function e(){c.needsUpdate=!0,t.requestVideoFrameCallback(e)}))}clone(){return new this.constructor(this.image).copy(this)}update(){const t=this.image;!1==="requestVideoFrameCallback"in t&&t.readyState>=t.HAVE_CURRENT_DATA&&(this.needsUpdate=!0)}}class Jr extends vi{constructor(t,e,i,n,s,r,a,o,l,c,h,u){super(null,r,a,o,l,c,n,s,h,u),this.isCompressedTexture=!0,this.image={width:e,height:i},this.mipmaps=t,this.flipY=!1,this.generateMipmaps=!1}}class $r extends Jr{constructor(t,e,i,n,s,r){super(t,e,i,s,r),this.isCompressedArrayTexture=!0,this.image.depth=n,this.wrapR=ot,this.layerUpdates=new Set}addLayerUpdate(t){this.layerUpdates.add(t)}clearLayerUpdates(){this.layerUpdates.clear()}}class Zr extends Jr{constructor(t,e,i){super(void 0,t[0].width,t[0].height,e,i,it),this.isCompressedCubeTexture=!0,this.isCubeTexture=!0,this.image=t}}class ta extends vi{constructor(t,e,i,n,s,r,a,o,l){super(t,e,i,n,s,r,a,o,l),this.isCanvasTexture=!0,this.needsUpdate=!0}}class ea extends vi{constructor(t,e,i,n,s,r,a,o,l,c=1026){if(c!==Mt&&c!==Tt)throw new Error("DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat");void 0===i&&c===Mt&&(i=yt),void 0===i&&c===Tt&&(i=Ct),super(null,n,s,r,a,o,c,i,l),this.isDepthTexture=!0,this.image={width:t,height:e},this.magFilter=void 0!==a?a:ct,this.minFilter=void 0!==o?o:ct,this.flipY=!1,this.generateMipmaps=!1,this.compareFunction=null}copy(t){return super.copy(t),this.source=new mi(Object.assign({},t.image)),this.compareFunction=t.compareFunction,this}toJSON(t){const e=super.toJSON(t);return null!==this.compareFunction&&(e.compareFunction=this.compareFunction),e}}class ia{constructor(){this.type="Curve",this.arcLengthDivisions=200,this.needsUpdate=!1,this.cacheArcLengths=null}getPoint(){console.warn("THREE.Curve: .getPoint() not implemented.")}getPointAt(t,e){const i=this.getUtoTmapping(t);return this.getPoint(i,e)}getPoints(t=5){const e=[];for(let i=0;i<=t;i++)e.push(this.getPoint(i/t));return e}getSpacedPoints(t=5){const e=[];for(let i=0;i<=t;i++)e.push(this.getPointAt(i/t));return e}getLength(){const t=this.getLengths();return t[t.length-1]}getLengths(t=this.arcLengthDivisions){if(this.cacheArcLengths&&this.cacheArcLengths.length===t+1&&!this.needsUpdate)return this.cacheArcLengths;this.needsUpdate=!1;const e=[];let i,n=this.getPoint(0),s=0;e.push(0);for(let r=1;r<=t;r++)i=this.getPoint(r/t),s+=i.distanceTo(n),e.push(s),n=i;return this.cacheArcLengths=e,e}updateArcLengths(){this.needsUpdate=!0,this.getLengths()}getUtoTmapping(t,e=null){const i=this.getLengths();let n=0;const s=i.length;let r;r=e||t*i[s-1];let a,o=0,l=s-1;for(;o<=l;)if(n=Math.floor(o+(l-o)/2),a=i[n]-r,a<0)o=n+1;else{if(!(a>0)){l=n;break}l=n-1}if(n=l,i[n]===r)return n/(s-1);const c=i[n];return(n+(r-c)/(i[n+1]-c))/(s-1)}getTangent(t,e){const i=1e-4;let n=t-i,s=t+i;n<0&&(n=0),s>1&&(s=1);const r=this.getPoint(n),a=this.getPoint(s),o=e||(r.isVector2?new $e:new Ci);return o.copy(a).sub(r).normalize(),o}getTangentAt(t,e){const i=this.getUtoTmapping(t);return this.getTangent(i,e)}computeFrenetFrames(t,e=!1){const i=new Ci,n=[],s=[],r=[],a=new Ci,o=new en;for(let e=0;e<=t;e++){const i=e/t;n[e]=this.getTangentAt(i,new Ci)}s[0]=new Ci,r[0]=new Ci;let l=Number.MAX_VALUE;const c=Math.abs(n[0].x),h=Math.abs(n[0].y),u=Math.abs(n[0].z);c<=l&&(l=c,i.set(1,0,0)),h<=l&&(l=h,i.set(0,1,0)),u<=l&&i.set(0,0,1),a.crossVectors(n[0],i).normalize(),s[0].crossVectors(n[0],a),r[0].crossVectors(n[0],s[0]);for(let e=1;e<=t;e++){if(s[e]=s[e-1].clone(),r[e]=r[e-1].clone(),a.crossVectors(n[e-1],n[e]),a.length()>Number.EPSILON){a.normalize();const t=Math.acos(qe(n[e-1].dot(n[e]),-1,1));s[e].applyMatrix4(o.makeRotationAxis(a,t))}r[e].crossVectors(n[e],s[e])}if(!0===e){let e=Math.acos(qe(s[0].dot(s[t]),-1,1));e/=t,n[0].dot(a.crossVectors(s[0],s[t]))>0&&(e=-e);for(let i=1;i<=t;i++)s[i].applyMatrix4(o.makeRotationAxis(n[i],e*i)),r[i].crossVectors(n[i],s[i])}return{tangents:n,normals:s,binormals:r}}clone(){return(new this.constructor).copy(this)}copy(t){return this.arcLengthDivisions=t.arcLengthDivisions,this}toJSON(){const t={metadata:{version:4.6,type:"Curve",generator:"Curve.toJSON"}};return t.arcLengthDivisions=this.arcLengthDivisions,t.type=this.type,t}fromJSON(t){return this.arcLengthDivisions=t.arcLengthDivisions,this}}class na extends ia{constructor(t=0,e=0,i=1,n=1,s=0,r=2*Math.PI,a=!1,o=0){super(),this.isEllipseCurve=!0,this.type="EllipseCurve",this.aX=t,this.aY=e,this.xRadius=i,this.yRadius=n,this.aStartAngle=s,this.aEndAngle=r,this.aClockwise=a,this.aRotation=o}getPoint(t,e=new $e){const i=e,n=2*Math.PI;let s=this.aEndAngle-this.aStartAngle;const r=Math.abs(s)<Number.EPSILON;for(;s<0;)s+=n;for(;s>n;)s-=n;s<Number.EPSILON&&(s=r?0:n),!0!==this.aClockwise||r||(s===n?s=-n:s-=n);const a=this.aStartAngle+t*s;let o=this.aX+this.xRadius*Math.cos(a),l=this.aY+this.yRadius*Math.sin(a);if(0!==this.aRotation){const t=Math.cos(this.aRotation),e=Math.sin(this.aRotation),i=o-this.aX,n=l-this.aY;o=i*t-n*e+this.aX,l=i*e+n*t+this.aY}return i.set(o,l)}copy(t){return super.copy(t),this.aX=t.aX,this.aY=t.aY,this.xRadius=t.xRadius,this.yRadius=t.yRadius,this.aStartAngle=t.aStartAngle,this.aEndAngle=t.aEndAngle,this.aClockwise=t.aClockwise,this.aRotation=t.aRotation,this}toJSON(){const t=super.toJSON();return t.aX=this.aX,t.aY=this.aY,t.xRadius=this.xRadius,t.yRadius=this.yRadius,t.aStartAngle=this.aStartAngle,t.aEndAngle=this.aEndAngle,t.aClockwise=this.aClockwise,t.aRotation=this.aRotation,t}fromJSON(t){return super.fromJSON(t),this.aX=t.aX,this.aY=t.aY,this.xRadius=t.xRadius,this.yRadius=t.yRadius,this.aStartAngle=t.aStartAngle,this.aEndAngle=t.aEndAngle,this.aClockwise=t.aClockwise,this.aRotation=t.aRotation,this}}function sa(){let t=0,e=0,i=0,n=0;function s(s,r,a,o){t=s,e=a,i=-3*s+3*r-2*a-o,n=2*s-2*r+a+o}return{initCatmullRom:function(t,e,i,n,r){s(e,i,r*(i-t),r*(n-e))},initNonuniformCatmullRom:function(t,e,i,n,r,a,o){let l=(e-t)/r-(i-t)/(r+a)+(i-e)/a,c=(i-e)/a-(n-e)/(a+o)+(n-i)/o;l*=a,c*=a,s(e,i,l,c)},calc:function(s){const r=s*s;return t+e*s+i*r+n*(r*s)}}}const ra=new Ci,aa=new sa,oa=new sa,la=new sa;function ca(t,e,i,n,s){const r=.5*(n-e),a=.5*(s-i),o=t*t;return(2*i-2*n+r+a)*(t*o)+(-3*i+3*n-2*r-a)*o+r*t+i}function ha(t,e,i,n){return function(t,e){const i=1-t;return i*i*e}(t,e)+function(t,e){return 2*(1-t)*t*e}(t,i)+function(t,e){return t*t*e}(t,n)}function ua(t,e,i,n,s){return function(t,e){const i=1-t;return i*i*i*e}(t,e)+function(t,e){const i=1-t;return 3*i*i*t*e}(t,i)+function(t,e){return 3*(1-t)*t*t*e}(t,n)+function(t,e){return t*t*t*e}(t,s)}class da extends ia{constructor(t=new $e,e=new $e,i=new $e,n=new $e){super(),this.isCubicBezierCurve=!0,this.type="CubicBezierCurve",this.v0=t,this.v1=e,this.v2=i,this.v3=n}getPoint(t,e=new $e){const i=e,n=this.v0,s=this.v1,r=this.v2,a=this.v3;return i.set(ua(t,n.x,s.x,r.x,a.x),ua(t,n.y,s.y,r.y,a.y)),i}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this.v3.copy(t.v3),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t.v3=this.v3.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this.v3.fromArray(t.v3),this}}class pa extends ia{constructor(t=new $e,e=new $e){super(),this.isLineCurve=!0,this.type="LineCurve",this.v1=t,this.v2=e}getPoint(t,e=new $e){const i=e;return 1===t?i.copy(this.v2):(i.copy(this.v2).sub(this.v1),i.multiplyScalar(t).add(this.v1)),i}getPointAt(t,e){return this.getPoint(t,e)}getTangent(t,e=new $e){return e.subVectors(this.v2,this.v1).normalize()}getTangentAt(t,e){return this.getTangent(t,e)}copy(t){return super.copy(t),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}class Aa extends ia{constructor(t=new $e,e=new $e,i=new $e){super(),this.isQuadraticBezierCurve=!0,this.type="QuadraticBezierCurve",this.v0=t,this.v1=e,this.v2=i}getPoint(t,e=new $e){const i=e,n=this.v0,s=this.v1,r=this.v2;return i.set(ha(t,n.x,s.x,r.x),ha(t,n.y,s.y,r.y)),i}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}class ma extends ia{constructor(t=[]){super(),this.isSplineCurve=!0,this.type="SplineCurve",this.points=t}getPoint(t,e=new $e){const i=e,n=this.points,s=(n.length-1)*t,r=Math.floor(s),a=s-r,o=n[0===r?r:r-1],l=n[r],c=n[r>n.length-2?n.length-1:r+1],h=n[r>n.length-3?n.length-1:r+2];return i.set(ca(a,o.x,l.x,c.x,h.x),ca(a,o.y,l.y,c.y,h.y)),i}copy(t){super.copy(t),this.points=[];for(let e=0,i=t.points.length;e<i;e++){const i=t.points[e];this.points.push(i.clone())}return this}toJSON(){const t=super.toJSON();t.points=[];for(let e=0,i=this.points.length;e<i;e++){const i=this.points[e];t.points.push(i.toArray())}return t}fromJSON(t){super.fromJSON(t),this.points=[];for(let e=0,i=t.points.length;e<i;e++){const i=t.points[e];this.points.push((new $e).fromArray(i))}return this}}var ga=Object.freeze({__proto__:null,ArcCurve:class extends na{constructor(t,e,i,n,s,r){super(t,e,i,i,n,s,r),this.isArcCurve=!0,this.type="ArcCurve"}},CatmullRomCurve3:class extends ia{constructor(t=[],e=!1,i="centripetal",n=.5){super(),this.isCatmullRomCurve3=!0,this.type="CatmullRomCurve3",this.points=t,this.closed=e,this.curveType=i,this.tension=n}getPoint(t,e=new Ci){const i=e,n=this.points,s=n.length,r=(s-(this.closed?0:1))*t;let a,o,l=Math.floor(r),c=r-l;this.closed?l+=l>0?0:(Math.floor(Math.abs(l)/s)+1)*s:0===c&&l===s-1&&(l=s-2,c=1),this.closed||l>0?a=n[(l-1)%s]:(ra.subVectors(n[0],n[1]).add(n[0]),a=ra);const h=n[l%s],u=n[(l+1)%s];if(this.closed||l+2<s?o=n[(l+2)%s]:(ra.subVectors(n[s-1],n[s-2]).add(n[s-1]),o=ra),"centripetal"===this.curveType||"chordal"===this.curveType){const t="chordal"===this.curveType?.5:.25;let e=Math.pow(a.distanceToSquared(h),t),i=Math.pow(h.distanceToSquared(u),t),n=Math.pow(u.distanceToSquared(o),t);i<1e-4&&(i=1),e<1e-4&&(e=i),n<1e-4&&(n=i),aa.initNonuniformCatmullRom(a.x,h.x,u.x,o.x,e,i,n),oa.initNonuniformCatmullRom(a.y,h.y,u.y,o.y,e,i,n),la.initNonuniformCatmullRom(a.z,h.z,u.z,o.z,e,i,n)}else"catmullrom"===this.curveType&&(aa.initCatmullRom(a.x,h.x,u.x,o.x,this.tension),oa.initCatmullRom(a.y,h.y,u.y,o.y,this.tension),la.initCatmullRom(a.z,h.z,u.z,o.z,this.tension));return i.set(aa.calc(c),oa.calc(c),la.calc(c)),i}copy(t){super.copy(t),this.points=[];for(let e=0,i=t.points.length;e<i;e++){const i=t.points[e];this.points.push(i.clone())}return this.closed=t.closed,this.curveType=t.curveType,this.tension=t.tension,this}toJSON(){const t=super.toJSON();t.points=[];for(let e=0,i=this.points.length;e<i;e++){const i=this.points[e];t.points.push(i.toArray())}return t.closed=this.closed,t.curveType=this.curveType,t.tension=this.tension,t}fromJSON(t){super.fromJSON(t),this.points=[];for(let e=0,i=t.points.length;e<i;e++){const i=t.points[e];this.points.push((new Ci).fromArray(i))}return this.closed=t.closed,this.curveType=t.curveType,this.tension=t.tension,this}},CubicBezierCurve:da,CubicBezierCurve3:class extends ia{constructor(t=new Ci,e=new Ci,i=new Ci,n=new Ci){super(),this.isCubicBezierCurve3=!0,this.type="CubicBezierCurve3",this.v0=t,this.v1=e,this.v2=i,this.v3=n}getPoint(t,e=new Ci){const i=e,n=this.v0,s=this.v1,r=this.v2,a=this.v3;return i.set(ua(t,n.x,s.x,r.x,a.x),ua(t,n.y,s.y,r.y,a.y),ua(t,n.z,s.z,r.z,a.z)),i}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this.v3.copy(t.v3),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t.v3=this.v3.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this.v3.fromArray(t.v3),this}},EllipseCurve:na,LineCurve:pa,LineCurve3:class extends ia{constructor(t=new Ci,e=new Ci){super(),this.isLineCurve3=!0,this.type="LineCurve3",this.v1=t,this.v2=e}getPoint(t,e=new Ci){const i=e;return 1===t?i.copy(this.v2):(i.copy(this.v2).sub(this.v1),i.multiplyScalar(t).add(this.v1)),i}getPointAt(t,e){return this.getPoint(t,e)}getTangent(t,e=new Ci){return e.subVectors(this.v2,this.v1).normalize()}getTangentAt(t,e){return this.getTangent(t,e)}copy(t){return super.copy(t),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}},QuadraticBezierCurve:Aa,QuadraticBezierCurve3:class extends ia{constructor(t=new Ci,e=new Ci,i=new Ci){super(),this.isQuadraticBezierCurve3=!0,this.type="QuadraticBezierCurve3",this.v0=t,this.v1=e,this.v2=i}getPoint(t,e=new Ci){const i=e,n=this.v0,s=this.v1,r=this.v2;return i.set(ha(t,n.x,s.x,r.x),ha(t,n.y,s.y,r.y),ha(t,n.z,s.z,r.z)),i}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}},SplineCurve:ma});class fa extends ia{constructor(){super(),this.type="CurvePath",this.curves=[],this.autoClose=!1}add(t){this.curves.push(t)}closePath(){const t=this.curves[0].getPoint(0),e=this.curves[this.curves.length-1].getPoint(1);if(!t.equals(e)){const i=!0===t.isVector2?"LineCurve":"LineCurve3";this.curves.push(new ga[i](e,t))}return this}getPoint(t,e){const i=t*this.getLength(),n=this.getCurveLengths();let s=0;for(;s<n.length;){if(n[s]>=i){const t=n[s]-i,r=this.curves[s],a=r.getLength(),o=0===a?0:1-t/a;return r.getPointAt(o,e)}s++}return null}getLength(){const t=this.getCurveLengths();return t[t.length-1]}updateArcLengths(){this.needsUpdate=!0,this.cacheLengths=null,this.getCurveLengths()}getCurveLengths(){if(this.cacheLengths&&this.cacheLengths.length===this.curves.length)return this.cacheLengths;const t=[];let e=0;for(let i=0,n=this.curves.length;i<n;i++)e+=this.curves[i].getLength(),t.push(e);return this.cacheLengths=t,t}getSpacedPoints(t=40){const e=[];for(let i=0;i<=t;i++)e.push(this.getPoint(i/t));return this.autoClose&&e.push(e[0]),e}getPoints(t=12){const e=[];let i;for(let n=0,s=this.curves;n<s.length;n++){const r=s[n],a=r.isEllipseCurve?2*t:r.isLineCurve||r.isLineCurve3?1:r.isSplineCurve?t*r.points.length:t,o=r.getPoints(a);for(let t=0;t<o.length;t++){const n=o[t];i&&i.equals(n)||(e.push(n),i=n)}}return this.autoClose&&e.length>1&&!e[e.length-1].equals(e[0])&&e.push(e[0]),e}copy(t){super.copy(t),this.curves=[];for(let e=0,i=t.curves.length;e<i;e++){const i=t.curves[e];this.curves.push(i.clone())}return this.autoClose=t.autoClose,this}toJSON(){const t=super.toJSON();t.autoClose=this.autoClose,t.curves=[];for(let e=0,i=this.curves.length;e<i;e++){const i=this.curves[e];t.curves.push(i.toJSON())}return t}fromJSON(t){super.fromJSON(t),this.autoClose=t.autoClose,this.curves=[];for(let e=0,i=t.curves.length;e<i;e++){const i=t.curves[e];this.curves.push((new ga[i.type]).fromJSON(i))}return this}}class va extends fa{constructor(t){super(),this.type="Path",this.currentPoint=new $e,t&&this.setFromPoints(t)}setFromPoints(t){this.moveTo(t[0].x,t[0].y);for(let e=1,i=t.length;e<i;e++)this.lineTo(t[e].x,t[e].y);return this}moveTo(t,e){return this.currentPoint.set(t,e),this}lineTo(t,e){const i=new pa(this.currentPoint.clone(),new $e(t,e));return this.curves.push(i),this.currentPoint.set(t,e),this}quadraticCurveTo(t,e,i,n){const s=new Aa(this.currentPoint.clone(),new $e(t,e),new $e(i,n));return this.curves.push(s),this.currentPoint.set(i,n),this}bezierCurveTo(t,e,i,n,s,r){const a=new da(this.currentPoint.clone(),new $e(t,e),new $e(i,n),new $e(s,r));return this.curves.push(a),this.currentPoint.set(s,r),this}splineThru(t){const e=[this.currentPoint.clone()].concat(t),i=new ma(e);return this.curves.push(i),this.currentPoint.copy(t[t.length-1]),this}arc(t,e,i,n,s,r){const a=this.currentPoint.x,o=this.currentPoint.y;return this.absarc(t+a,e+o,i,n,s,r),this}absarc(t,e,i,n,s,r){return this.absellipse(t,e,i,i,n,s,r),this}ellipse(t,e,i,n,s,r,a,o){const l=this.currentPoint.x,c=this.currentPoint.y;return this.absellipse(t+l,e+c,i,n,s,r,a,o),this}absellipse(t,e,i,n,s,r,a,o){const l=new na(t,e,i,n,s,r,a,o);if(this.curves.length>0){const t=l.getPoint(0);t.equals(this.currentPoint)||this.lineTo(t.x,t.y)}this.curves.push(l);const c=l.getPoint(1);return this.currentPoint.copy(c),this}copy(t){return super.copy(t),this.currentPoint.copy(t.currentPoint),this}toJSON(){const t=super.toJSON();return t.currentPoint=this.currentPoint.toArray(),t}fromJSON(t){return super.fromJSON(t),this.currentPoint.fromArray(t.currentPoint),this}}class ba extends va{constructor(t){super(t),this.uuid=We(),this.type="Shape",this.holes=[]}getPointsHoles(t){const e=[];for(let i=0,n=this.holes.length;i<n;i++)e[i]=this.holes[i].getPoints(t);return e}extractPoints(t){return{shape:this.getPoints(t),holes:this.getPointsHoles(t)}}copy(t){super.copy(t),this.holes=[];for(let e=0,i=t.holes.length;e<i;e++){const i=t.holes[e];this.holes.push(i.clone())}return this}toJSON(){const t=super.toJSON();t.uuid=this.uuid,t.holes=[];for(let e=0,i=this.holes.length;e<i;e++){const i=this.holes[e];t.holes.push(i.toJSON())}return t}fromJSON(t){super.fromJSON(t),this.uuid=t.uuid,this.holes=[];for(let e=0,i=t.holes.length;e<i;e++){const i=t.holes[e];this.holes.push((new va).fromJSON(i))}return this}}class ya{static triangulate(t,e,i=2){const n=e&&e.length,s=n?e[0]*i:t.length;let r=xa(t,0,s,i,!0);const a=[];if(!r||r.next===r.prev)return a;let o,l,c,h,u,d,p;if(n&&(r=function(t,e,i,n){const s=[];let r,a,o,l,c;for(r=0,a=e.length;r<a;r++)o=e[r]*n,l=r<a-1?e[r+1]*n:t.length,c=xa(t,o,l,n,!1),c===c.next&&(c.steiner=!0),s.push(Da(c));for(s.sort(Ma),r=0;r<s.length;r++)i=Ta(s[r],i);return i}(t,e,r,i)),t.length>80*i){o=c=t[0],l=h=t[1];for(let e=i;e<s;e+=i)u=t[e],d=t[e+1],u<o&&(o=u),d<l&&(l=d),u>c&&(c=u),d>h&&(h=d);p=Math.max(c-o,h-l),p=0!==p?32767/p:0}return Ea(r,a,i,o,l,p,0),a}}function xa(t,e,i,n,s){let r,a;if(s===function(t,e,i,n){let s=0;for(let r=e,a=i-n;r<i;r+=n)s+=(t[a]-t[r])*(t[r+1]+t[a+1]),a=r;return s}(t,e,i,n)>0)for(r=e;r<i;r+=n)a=Ha(r,t[r],t[r+1],a);else for(r=i-n;r>=e;r-=n)a=Ha(r,t[r],t[r+1],a);return a&&Fa(a,a.next)&&(za(a),a=a.next),a}function _a(t,e){if(!t)return t;e||(e=t);let 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super.copy(t),this.parameters=Object.assign({},t.parameters),this}static fromJSON(t){return new Xa(t.width,t.height,t.widthSegments,t.heightSegments)}}class Ya extends gs{constructor(t=new ba([new $e(0,.5),new $e(-.5,-.5),new $e(.5,-.5)]),e=12){super(),this.type="ShapeGeometry",this.parameters={shapes:t,curveSegments:e};const i=[],n=[],s=[],r=[];let a=0,o=0;if(!1===Array.isArray(t))l(t);else for(let e=0;e<t.length;e++)l(t[e]),this.addGroup(a,o,e),a+=o,o=0;function l(t){const a=n.length/3,l=t.extractPoints(e);let c=l.shape;const h=l.holes;!1===Wa.isClockWise(c)&&(c=c.reverse());for(let t=0,e=h.length;t<e;t++){const e=h[t];!0===Wa.isClockWise(e)&&(h[t]=e.reverse())}const u=Wa.triangulateShape(c,h);for(let t=0,e=h.length;t<e;t++){const e=h[t];c=c.concat(e)}for(let t=0,e=c.length;t<e;t++){const e=c[t];n.push(e.x,e.y,0),s.push(0,0,1),r.push(e.x,e.y)}for(let t=0,e=u.length;t<e;t++){const e=u[t],n=e[0]+a,s=e[1]+a,r=e[2]+a;i.push(n,s,r),o+=3}}this.setIndex(i),this.setAttribute("position",new ls(n,3)),this.setAttribute("normal",new ls(s,3)),this.setAttribute("uv",new ls(r,2))}copy(t){return super.copy(t),this.parameters=Object.assign({},t.parameters),this}toJSON(){const t=super.toJSON();return function(t,e){if(e.shapes=[],Array.isArray(t))for(let i=0,n=t.length;i<n;i++){const n=t[i];e.shapes.push(n.uuid)}else e.shapes.push(t.uuid);return e}(this.parameters.shapes,t)}static fromJSON(t,e){const i=[];for(let n=0,s=t.shapes.length;n<s;n++){const s=e[t.shapes[n]];i.push(s)}return new Ya(i,t.curveSegments)}}class Ka extends gs{constructor(t=1,e=32,i=16,n=0,s=2*Math.PI,r=0,a=Math.PI){super(),this.type="SphereGeometry",this.parameters={radius:t,widthSegments:e,heightSegments:i,phiStart:n,phiLength:s,thetaStart:r,thetaLength:a},e=Math.max(3,Math.floor(e)),i=Math.max(2,Math.floor(i));const o=Math.min(r+a,Math.PI);let l=0;const c=[],h=new Ci,u=new Ci,d=[],p=[],A=[],m=[];for(let d=0;d<=i;d++){const g=[],f=d/i;let v=0;0===d&&0===r?v=.5/e:d===i&&o===Math.PI&&(v=-.5/e);for(let i=0;i<=e;i++){const o=i/e;h.x=-t*Math.cos(n+o*s)*Math.sin(r+f*a),h.y=t*Math.cos(r+f*a),h.z=t*Math.sin(n+o*s)*Math.sin(r+f*a),p.push(h.x,h.y,h.z),u.copy(h).normalize(),A.push(u.x,u.y,u.z),m.push(o+v,1-f),g.push(l++)}c.push(g)}for(let t=0;t<i;t++)for(let n=0;n<e;n++){const e=c[t][n+1],s=c[t][n],a=c[t+1][n],l=c[t+1][n+1];(0!==t||r>0)&&d.push(e,s,l),(t!==i-1||o<Math.PI)&&d.push(s,a,l)}this.setIndex(d),this.setAttribute("position",new ls(p,3)),this.setAttribute("normal",new ls(A,3)),this.setAttribute("uv",new ls(m,2))}copy(t){return super.copy(t),this.parameters=Object.assign({},t.parameters),this}static fromJSON(t){return new Ka(t.radius,t.widthSegments,t.heightSegments,t.phiStart,t.phiLength,t.thetaStart,t.thetaLength)}}class Ja extends Jn{constructor(t){super(),this.isMeshStandardMaterial=!0,this.type="MeshStandardMaterial",this.defines={STANDARD:""},this.color=new Xn(16777215),this.roughness=1,this.metalness=0,this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new Xn(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=0,this.normalScale=new $e(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.roughnessMap=null,this.metalnessMap=null,this.alphaMap=null,this.envMap=null,this.envMapRotation=new dn,this.envMapIntensity=1,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.flatShading=!1,this.fog=!0,this.setValues(t)}copy(t){return super.copy(t),this.defines={STANDARD:""},this.color.copy(t.color),this.roughness=t.roughness,this.metalness=t.metalness,this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.roughnessMap=t.roughnessMap,this.metalnessMap=t.metalnessMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.envMapRotation.copy(t.envMapRotation),this.envMapIntensity=t.envMapIntensity,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.flatShading=t.flatShading,this.fog=t.fog,this}}class $a extends Ja{constructor(t){super(),this.isMeshPhysicalMaterial=!0,this.defines={STANDARD:"",PHYSICAL:""},this.type="MeshPhysicalMaterial",this.anisotropyRotation=0,this.anisotropyMap=null,this.clearcoatMap=null,this.clearcoatRoughness=0,this.clearcoatRoughnessMap=null,this.clearcoatNormalScale=new $e(1,1),this.clearcoatNormalMap=null,this.ior=1.5,Object.defineProperty(this,"reflectivity",{get:function(){return qe(2.5*(this.ior-1)/(this.ior+1),0,1)},set:function(t){this.ior=(1+.4*t)/(1-.4*t)}}),this.iridescenceMap=null,this.iridescenceIOR=1.3,this.iridescenceThicknessRange=[100,400],this.iridescenceThicknessMap=null,this.sheenColor=new Xn(0),this.sheenColorMap=null,this.sheenRoughness=1,this.sheenRoughnessMap=null,this.transmissionMap=null,this.thickness=0,this.thicknessMap=null,this.attenuationDistance=1/0,this.attenuationColor=new Xn(1,1,1),this.specularIntensity=1,this.specularIntensityMap=null,this.specularColor=new Xn(1,1,1),this.specularColorMap=null,this._anisotropy=0,this._clearcoat=0,this._dispersion=0,this._iridescence=0,this._sheen=0,this._transmission=0,this.setValues(t)}get anisotropy(){return this._anisotropy}set anisotropy(t){this._anisotropy>0!=t>0&&this.version++,this._anisotropy=t}get clearcoat(){return this._clearcoat}set clearcoat(t){this._clearcoat>0!=t>0&&this.version++,this._clearcoat=t}get iridescence(){return this._iridescence}set iridescence(t){this._iridescence>0!=t>0&&this.version++,this._iridescence=t}get dispersion(){return this._dispersion}set dispersion(t){this._dispersion>0!=t>0&&this.version++,this._dispersion=t}get sheen(){return this._sheen}set sheen(t){this._sheen>0!=t>0&&this.version++,this._sheen=t}get transmission(){return this._transmission}set transmission(t){this._transmission>0!=t>0&&this.version++,this._transmission=t}copy(t){return super.copy(t),this.defines={STANDARD:"",PHYSICAL:""},this.anisotropy=t.anisotropy,this.anisotropyRotation=t.anisotropyRotation,this.anisotropyMap=t.anisotropyMap,this.clearcoat=t.clearcoat,this.clearcoatMap=t.clearcoatMap,this.clearcoatRoughness=t.clearcoatRoughness,this.clearcoatRoughnessMap=t.clearcoatRoughnessMap,this.clearcoatNormalMap=t.clearcoatNormalMap,this.clearcoatNormalScale.copy(t.clearcoatNormalScale),this.dispersion=t.dispersion,this.ior=t.ior,this.iridescence=t.iridescence,this.iridescenceMap=t.iridescenceMap,this.iridescenceIOR=t.iridescenceIOR,this.iridescenceThicknessRange=[...t.iridescenceThicknessRange],this.iridescenceThicknessMap=t.iridescenceThicknessMap,this.sheen=t.sheen,this.sheenColor.copy(t.sheenColor),this.sheenColorMap=t.sheenColorMap,this.sheenRoughness=t.sheenRoughness,this.sheenRoughnessMap=t.sheenRoughnessMap,this.transmission=t.transmission,this.transmissionMap=t.transmissionMap,this.thickness=t.thickness,this.thicknessMap=t.thicknessMap,this.attenuationDistance=t.attenuationDistance,this.attenuationColor.copy(t.attenuationColor),this.specularIntensity=t.specularIntensity,this.specularIntensityMap=t.specularIntensityMap,this.specularColor.copy(t.specularColor),this.specularColorMap=t.specularColorMap,this}}class Za extends Jn{constructor(t){super(),this.isMeshDepthMaterial=!0,this.type="MeshDepthMaterial",this.depthPacking=3200,this.map=null,this.alphaMap=null,this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.wireframe=!1,this.wireframeLinewidth=1,this.setValues(t)}copy(t){return super.copy(t),this.depthPacking=t.depthPacking,this.map=t.map,this.alphaMap=t.alphaMap,this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this}}class to extends Jn{constructor(t){super(),this.isMeshDistanceMaterial=!0,this.type="MeshDistanceMaterial",this.map=null,this.alphaMap=null,this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.setValues(t)}copy(t){return super.copy(t),this.map=t.map,this.alphaMap=t.alphaMap,this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this}}function eo(t,e,i){return!t||!i&&t.constructor===e?t:"number"==typeof e.BYTES_PER_ELEMENT?new e(t):Array.prototype.slice.call(t)}function io(t){const e=t.length,i=new Array(e);for(let t=0;t!==e;++t)i[t]=t;return i.sort((function(e,i){return t[e]-t[i]})),i}function no(t,e,i){const n=t.length,s=new t.constructor(n);for(let r=0,a=0;a!==n;++r){const n=i[r]*e;for(let i=0;i!==e;++i)s[a++]=t[n+i]}return s}function so(t,e,i,n){let s=1,r=t[0];for(;void 0!==r&&void 0===r[n];)r=t[s++];if(void 0===r)return;let a=r[n];if(void 0!==a)if(Array.isArray(a))do{a=r[n],void 0!==a&&(e.push(r.time),i.push(...a)),r=t[s++]}while(void 0!==r);else if(void 0!==a.toArray)do{a=r[n],void 0!==a&&(e.push(r.time),a.toArray(i,i.length)),r=t[s++]}while(void 0!==r);else do{a=r[n],void 0!==a&&(e.push(r.time),i.push(a)),r=t[s++]}while(void 0!==r)}class ro{constructor(t,e,i,n){this.parameterPositions=t,this._cachedIndex=0,this.resultBuffer=void 0!==n?n:new e.constructor(i),this.sampleValues=e,this.valueSize=i,this.settings=null,this.DefaultSettings_={}}evaluate(t){const e=this.parameterPositions;let i=this._cachedIndex,n=e[i],s=e[i-1];t:{e:{let r;i:{n:if(!(t<n)){for(let r=i+2;;){if(void 0===n){if(t<s)break n;return i=e.length,this._cachedIndex=i,this.copySampleValue_(i-1)}if(i===r)break;if(s=n,n=e[++i],t<n)break e}r=e.length;break i}if(t>=s)break t;{const a=e[1];t<a&&(i=2,s=a);for(let r=i-2;;){if(void 0===s)return this._cachedIndex=0,this.copySampleValue_(0);if(i===r)break;if(n=s,s=e[--i-1],t>=s)break e}r=i,i=0}}for(;i<r;){const n=i+r>>>1;t<e[n]?r=n:i=n+1}if(n=e[i],s=e[i-1],void 0===s)return this._cachedIndex=0,this.copySampleValue_(0);if(void 0===n)return i=e.length,this._cachedIndex=i,this.copySampleValue_(i-1)}this._cachedIndex=i,this.intervalChanged_(i,s,n)}return this.interpolate_(i,s,t,n)}getSettings_(){return this.settings||this.DefaultSettings_}copySampleValue_(t){const e=this.resultBuffer,i=this.sampleValues,n=this.valueSize,s=t*n;for(let t=0;t!==n;++t)e[t]=i[s+t];return e}interpolate_(){throw new Error("call to abstract method")}intervalChanged_(){}}class ao extends ro{constructor(t,e,i,n){super(t,e,i,n),this._weightPrev=-0,this._offsetPrev=-0,this._weightNext=-0,this._offsetNext=-0,this.DefaultSettings_={endingStart:ve,endingEnd:ve}}intervalChanged_(t,e,i){const n=this.parameterPositions;let s=t-2,r=t+1,a=n[s],o=n[r];if(void 0===a)switch(this.getSettings_().endingStart){case be:s=t,a=2*e-i;break;case ye:s=n.length-2,a=e+n[s]-n[s+1];break;default:s=t,a=i}if(void 0===o)switch(this.getSettings_().endingEnd){case be:r=t,o=2*i-e;break;case ye:r=1,o=i+n[1]-n[0];break;default:r=t-1,o=e}const l=.5*(i-e),c=this.valueSize;this._weightPrev=l/(e-a),this._weightNext=l/(o-i),this._offsetPrev=s*c,this._offsetNext=r*c}interpolate_(t,e,i,n){const s=this.resultBuffer,r=this.sampleValues,a=this.valueSize,o=t*a,l=o-a,c=this._offsetPrev,h=this._offsetNext,u=this._weightPrev,d=this._weightNext,p=(i-e)/(n-e),A=p*p,m=A*p,g=-u*m+2*u*A-u*p,f=(1+u)*m+(-1.5-2*u)*A+(-.5+u)*p+1,v=(-1-d)*m+(1.5+d)*A+.5*p,b=d*m-d*A;for(let t=0;t!==a;++t)s[t]=g*r[c+t]+f*r[l+t]+v*r[o+t]+b*r[h+t];return s}}class oo extends ro{constructor(t,e,i,n){super(t,e,i,n)}interpolate_(t,e,i,n){const s=this.resultBuffer,r=this.sampleValues,a=this.valueSize,o=t*a,l=o-a,c=(i-e)/(n-e),h=1-c;for(let t=0;t!==a;++t)s[t]=r[l+t]*h+r[o+t]*c;return s}}class lo extends ro{constructor(t,e,i,n){super(t,e,i,n)}interpolate_(t){return this.copySampleValue_(t-1)}}class co{constructor(t,e,i,n){if(void 0===t)throw new Error("THREE.KeyframeTrack: track name is undefined");if(void 0===e||0===e.length)throw new Error("THREE.KeyframeTrack: no keyframes in track named "+t);this.name=t,this.times=eo(e,this.TimeBufferType),this.values=eo(i,this.ValueBufferType),this.setInterpolation(n||this.DefaultInterpolation)}static toJSON(t){const e=t.constructor;let i;if(e.toJSON!==this.toJSON)i=e.toJSON(t);else{i={name:t.name,times:eo(t.times,Array),values:eo(t.values,Array)};const e=t.getInterpolation();e!==t.DefaultInterpolation&&(i.interpolation=e)}return i.type=t.ValueTypeName,i}InterpolantFactoryMethodDiscrete(t){return new lo(this.times,this.values,this.getValueSize(),t)}InterpolantFactoryMethodLinear(t){return new oo(this.times,this.values,this.getValueSize(),t)}InterpolantFactoryMethodSmooth(t){return new ao(this.times,this.values,this.getValueSize(),t)}setInterpolation(t){let e;switch(t){case me:e=this.InterpolantFactoryMethodDiscrete;break;case ge:e=this.InterpolantFactoryMethodLinear;break;case fe:e=this.InterpolantFactoryMethodSmooth}if(void 0===e){const e="unsupported interpolation for "+this.ValueTypeName+" keyframe track named "+this.name;if(void 0===this.createInterpolant){if(t===this.DefaultInterpolation)throw new Error(e);this.setInterpolation(this.DefaultInterpolation)}return console.warn("THREE.KeyframeTrack:",e),this}return this.createInterpolant=e,this}getInterpolation(){switch(this.createInterpolant){case this.InterpolantFactoryMethodDiscrete:return me;case this.InterpolantFactoryMethodLinear:return ge;case this.InterpolantFactoryMethodSmooth:return fe}}getValueSize(){return this.values.length/this.times.length}shift(t){if(0!==t){const e=this.times;for(let i=0,n=e.length;i!==n;++i)e[i]+=t}return this}scale(t){if(1!==t){const e=this.times;for(let i=0,n=e.length;i!==n;++i)e[i]*=t}return this}trim(t,e){const i=this.times,n=i.length;let s=0,r=n-1;for(;s!==n&&i[s]<t;)++s;for(;-1!==r&&i[r]>e;)--r;if(++r,0!==s||r!==n){s>=r&&(r=Math.max(r,1),s=r-1);const t=this.getValueSize();this.times=i.slice(s,r),this.values=this.values.slice(s*t,r*t)}return this}validate(){let t=!0;const e=this.getValueSize();e-Math.floor(e)!=0&&(console.error("THREE.KeyframeTrack: Invalid value size in track.",this),t=!1);const i=this.times,n=this.values,s=i.length;0===s&&(console.error("THREE.KeyframeTrack: Track is empty.",this),t=!1);let r=null;for(let e=0;e!==s;e++){const n=i[e];if("number"==typeof n&&isNaN(n)){console.error("THREE.KeyframeTrack: Time is not a valid number.",this,e,n),t=!1;break}if(null!==r&&r>n){console.error("THREE.KeyframeTrack: Out of order keys.",this,e,n,r),t=!1;break}r=n}if(void 0!==n&&(a=n,ArrayBuffer.isView(a)&&!(a instanceof DataView)))for(let e=0,i=n.length;e!==i;++e){const i=n[e];if(isNaN(i)){console.error("THREE.KeyframeTrack: Value is not a valid number.",this,e,i),t=!1;break}}var a;return t}optimize(){const t=this.times.slice(),e=this.values.slice(),i=this.getValueSize(),n=this.getInterpolation()===fe,s=t.length-1;let r=1;for(let a=1;a<s;++a){let s=!1;const o=t[a];if(o!==t[a+1]&&(1!==a||o!==t[0]))if(n)s=!0;else{const t=a*i,n=t-i,r=t+i;for(let a=0;a!==i;++a){const i=e[t+a];if(i!==e[n+a]||i!==e[r+a]){s=!0;break}}}if(s){if(a!==r){t[r]=t[a];const n=a*i,s=r*i;for(let t=0;t!==i;++t)e[s+t]=e[n+t]}++r}}if(s>0){t[r]=t[s];for(let t=s*i,n=r*i,a=0;a!==i;++a)e[n+a]=e[t+a];++r}return r!==t.length?(this.times=t.slice(0,r),this.values=e.slice(0,r*i)):(this.times=t,this.values=e),this}clone(){const t=this.times.slice(),e=this.values.slice(),i=new(0,this.constructor)(this.name,t,e);return i.createInterpolant=this.createInterpolant,i}}co.prototype.TimeBufferType=Float32Array,co.prototype.ValueBufferType=Float32Array,co.prototype.DefaultInterpolation=ge;class ho extends co{constructor(t,e,i){super(t,e,i)}}ho.prototype.ValueTypeName="bool",ho.prototype.ValueBufferType=Array,ho.prototype.DefaultInterpolation=me,ho.prototype.InterpolantFactoryMethodLinear=void 0,ho.prototype.InterpolantFactoryMethodSmooth=void 0;class uo extends co{}uo.prototype.ValueTypeName="color";class po extends co{}po.prototype.ValueTypeName="number";class Ao extends ro{constructor(t,e,i,n){super(t,e,i,n)}interpolate_(t,e,i,n){const s=this.resultBuffer,r=this.sampleValues,a=this.valueSize,o=(i-e)/(n-e);let l=t*a;for(let t=l+a;l!==t;l+=4)Si.slerpFlat(s,0,r,l-a,r,l,o);return s}}class mo extends co{InterpolantFactoryMethodLinear(t){return new Ao(this.times,this.values,this.getValueSize(),t)}}mo.prototype.ValueTypeName="quaternion",mo.prototype.InterpolantFactoryMethodSmooth=void 0;class go extends co{constructor(t,e,i){super(t,e,i)}}go.prototype.ValueTypeName="string",go.prototype.ValueBufferType=Array,go.prototype.DefaultInterpolation=me,go.prototype.InterpolantFactoryMethodLinear=void 0,go.prototype.InterpolantFactoryMethodSmooth=void 0;class fo extends co{}fo.prototype.ValueTypeName="vector";class vo{constructor(t="",e=-1,i=[],n=2500){this.name=t,this.tracks=i,this.duration=e,this.blendMode=n,this.uuid=We(),this.duration<0&&this.resetDuration()}static parse(t){const e=[],i=t.tracks,n=1/(t.fps||1);for(let t=0,s=i.length;t!==s;++t)e.push(bo(i[t]).scale(n));const s=new this(t.name,t.duration,e,t.blendMode);return s.uuid=t.uuid,s}static toJSON(t){const e=[],i=t.tracks,n={name:t.name,duration:t.duration,tracks:e,uuid:t.uuid,blendMode:t.blendMode};for(let t=0,n=i.length;t!==n;++t)e.push(co.toJSON(i[t]));return n}static CreateFromMorphTargetSequence(t,e,i,n){const s=e.length,r=[];for(let t=0;t<s;t++){let a=[],o=[];a.push((t+s-1)%s,t,(t+1)%s),o.push(0,1,0);const l=io(a);a=no(a,1,l),o=no(o,1,l),n||0!==a[0]||(a.push(s),o.push(o[0])),r.push(new po(".morphTargetInfluences["+e[t].name+"]",a,o).scale(1/i))}return new this(t,-1,r)}static findByName(t,e){let i=t;if(!Array.isArray(t)){const e=t;i=e.geometry&&e.geometry.animations||e.animations}for(let t=0;t<i.length;t++)if(i[t].name===e)return i[t];return null}static CreateClipsFromMorphTargetSequences(t,e,i){const n={},s=/^([\w-]*?)([\d]+)$/;for(let e=0,i=t.length;e<i;e++){const i=t[e],r=i.name.match(s);if(r&&r.length>1){const t=r[1];let e=n[t];e||(n[t]=e=[]),e.push(i)}}const r=[];for(const t in n)r.push(this.CreateFromMorphTargetSequence(t,n[t],e,i));return r}static parseAnimation(t,e){if(!t)return console.error("THREE.AnimationClip: No animation in JSONLoader data."),null;const i=function(t,e,i,n,s){if(0!==i.length){const r=[],a=[];so(i,r,a,n),0!==r.length&&s.push(new t(e,r,a))}},n=[],s=t.name||"default",r=t.fps||30,a=t.blendMode;let o=t.length||-1;const l=t.hierarchy||[];for(let t=0;t<l.length;t++){const s=l[t].keys;if(s&&0!==s.length)if(s[0].morphTargets){const t={};let e;for(e=0;e<s.length;e++)if(s[e].morphTargets)for(let i=0;i<s[e].morphTargets.length;i++)t[s[e].morphTargets[i]]=-1;for(const i in t){const t=[],r=[];for(let n=0;n!==s[e].morphTargets.length;++n){const n=s[e];t.push(n.time),r.push(n.morphTarget===i?1:0)}n.push(new po(".morphTargetInfluence["+i+"]",t,r))}o=t.length*r}else{const r=".bones["+e[t].name+"]";i(fo,r+".position",s,"pos",n),i(mo,r+".quaternion",s,"rot",n),i(fo,r+".scale",s,"scl",n)}}if(0===n.length)return null;return new this(s,o,n,a)}resetDuration(){let t=0;for(let e=0,i=this.tracks.length;e!==i;++e){const i=this.tracks[e];t=Math.max(t,i.times[i.times.length-1])}return this.duration=t,this}trim(){for(let t=0;t<this.tracks.length;t++)this.tracks[t].trim(0,this.duration);return this}validate(){let t=!0;for(let e=0;e<this.tracks.length;e++)t=t&&this.tracks[e].validate();return t}optimize(){for(let t=0;t<this.tracks.length;t++)this.tracks[t].optimize();return this}clone(){const t=[];for(let e=0;e<this.tracks.length;e++)t.push(this.tracks[e].clone());return new this.constructor(this.name,this.duration,t,this.blendMode)}toJSON(){return this.constructor.toJSON(this)}}function bo(t){if(void 0===t.type)throw new Error("THREE.KeyframeTrack: track type undefined, can not parse");const e=function(t){switch(t.toLowerCase()){case"scalar":case"double":case"float":case"number":case"integer":return po;case"vector":case"vector2":case"vector3":case"vector4":return fo;case"color":return uo;case"quaternion":return mo;case"bool":case"boolean":return ho;case"string":return go}throw new Error("THREE.KeyframeTrack: Unsupported typeName: "+t)}(t.type);if(void 0===t.times){const e=[],i=[];so(t.keys,e,i,"value"),t.times=e,t.values=i}return void 0!==e.parse?e.parse(t):new e(t.name,t.times,t.values,t.interpolation)}const yo={enabled:!1,files:{},add:function(t,e){!1!==this.enabled&&(this.files[t]=e)},get:function(t){if(!1!==this.enabled)return this.files[t]},remove:function(t){delete this.files[t]},clear:function(){this.files={}}};class xo{constructor(t,e,i){const n=this;let s,r=!1,a=0,o=0;const l=[];this.onStart=void 0,this.onLoad=t,this.onProgress=e,this.onError=i,this.itemStart=function(t){o++,!1===r&&void 0!==n.onStart&&n.onStart(t,a,o),r=!0},this.itemEnd=function(t){a++,void 0!==n.onProgress&&n.onProgress(t,a,o),a===o&&(r=!1,void 0!==n.onLoad&&n.onLoad())},this.itemError=function(t){void 0!==n.onError&&n.onError(t)},this.resolveURL=function(t){return s?s(t):t},this.setURLModifier=function(t){return s=t,this},this.addHandler=function(t,e){return l.push(t,e),this},this.removeHandler=function(t){const e=l.indexOf(t);return-1!==e&&l.splice(e,2),this},this.getHandler=function(t){for(let e=0,i=l.length;e<i;e+=2){const i=l[e],n=l[e+1];if(i.global&&(i.lastIndex=0),i.test(t))return n}return null}}}const _o=new xo;class Eo{constructor(t){this.manager=void 0!==t?t:_o,this.crossOrigin="anonymous",this.withCredentials=!1,this.path="",this.resourcePath="",this.requestHeader={}}load(){}loadAsync(t,e){const i=this;return new Promise((function(n,s){i.load(t,n,e,s)}))}parse(){}setCrossOrigin(t){return this.crossOrigin=t,this}setWithCredentials(t){return this.withCredentials=t,this}setPath(t){return this.path=t,this}setResourcePath(t){return this.resourcePath=t,this}setRequestHeader(t){return this.requestHeader=t,this}}Eo.DEFAULT_MATERIAL_NAME="__DEFAULT";const So={};class Co extends Error{constructor(t,e){super(t),this.response=e}}class wo extends Eo{constructor(t){super(t)}load(t,e,i,n){void 0===t&&(t=""),void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const s=yo.get(t);if(void 0!==s)return this.manager.itemStart(t),setTimeout((()=>{e&&e(s),this.manager.itemEnd(t)}),0),s;if(void 0!==So[t])return void So[t].push({onLoad:e,onProgress:i,onError:n});So[t]=[],So[t].push({onLoad:e,onProgress:i,onError:n});const r=new Request(t,{headers:new Headers(this.requestHeader),credentials:this.withCredentials?"include":"same-origin"}),a=this.mimeType,o=this.responseType;fetch(r).then((e=>{if(200===e.status||0===e.status){if(0===e.status&&console.warn("THREE.FileLoader: HTTP Status 0 received."),"undefined"==typeof ReadableStream||void 0===e.body||void 0===e.body.getReader)return e;const i=So[t],n=e.body.getReader(),s=e.headers.get("X-File-Size")||e.headers.get("Content-Length"),r=s?parseInt(s):0,a=0!==r;let o=0;const l=new ReadableStream({start(t){!function e(){n.read().then((({done:n,value:s})=>{if(n)t.close();else{o+=s.byteLength;const n=new ProgressEvent("progress",{lengthComputable:a,loaded:o,total:r});for(let t=0,e=i.length;t<e;t++){const e=i[t];e.onProgress&&e.onProgress(n)}t.enqueue(s),e()}}),(e=>{t.error(e)}))}()}});return new Response(l)}throw new Co(`fetch for "${e.url}" responded with ${e.status}: ${e.statusText}`,e)})).then((t=>{switch(o){case"arraybuffer":return t.arrayBuffer();case"blob":return t.blob();case"document":return t.text().then((t=>(new DOMParser).parseFromString(t,a)));case"json":return t.json();default:if(void 0===a)return t.text();{const e=/charset="?([^;"\s]*)"?/i.exec(a),i=e&&e[1]?e[1].toLowerCase():void 0,n=new TextDecoder(i);return t.arrayBuffer().then((t=>n.decode(t)))}}})).then((e=>{yo.add(t,e);const i=So[t];delete So[t];for(let t=0,n=i.length;t<n;t++){const n=i[t];n.onLoad&&n.onLoad(e)}})).catch((e=>{const i=So[t];if(void 0===i)throw this.manager.itemError(t),e;delete So[t];for(let t=0,n=i.length;t<n;t++){const n=i[t];n.onError&&n.onError(e)}this.manager.itemError(t)})).finally((()=>{this.manager.itemEnd(t)})),this.manager.itemStart(t)}setResponseType(t){return this.responseType=t,this}setMimeType(t){return this.mimeType=t,this}}class Io extends Eo{constructor(t){super(t)}load(t,e,i,n){void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const s=this,r=yo.get(t);if(void 0!==r)return s.manager.itemStart(t),setTimeout((function(){e&&e(r),s.manager.itemEnd(t)}),0),r;const a=ii("img");function o(){c(),yo.add(t,this),e&&e(this),s.manager.itemEnd(t)}function l(e){c(),n&&n(e),s.manager.itemError(t),s.manager.itemEnd(t)}function c(){a.removeEventListener("load",o,!1),a.removeEventListener("error",l,!1)}return a.addEventListener("load",o,!1),a.addEventListener("error",l,!1),"data:"!==t.slice(0,5)&&void 0!==this.crossOrigin&&(a.crossOrigin=this.crossOrigin),s.manager.itemStart(t),a.src=t,a}}class Mo extends Eo{constructor(t){super(t)}load(t,e,i,n){const s=this,r=new cr,a=new wo(this.manager);return a.setResponseType("arraybuffer"),a.setRequestHeader(this.requestHeader),a.setPath(this.path),a.setWithCredentials(s.withCredentials),a.load(t,(function(t){let i;try{i=s.parse(t)}catch(t){if(void 0===n)return void console.error(t);n(t)}void 0!==i.image?r.image=i.image:void 0!==i.data&&(r.image.width=i.width,r.image.height=i.height,r.image.data=i.data),r.wrapS=void 0!==i.wrapS?i.wrapS:ot,r.wrapT=void 0!==i.wrapT?i.wrapT:ot,r.magFilter=void 0!==i.magFilter?i.magFilter:dt,r.minFilter=void 0!==i.minFilter?i.minFilter:dt,r.anisotropy=void 0!==i.anisotropy?i.anisotropy:1,void 0!==i.colorSpace&&(r.colorSpace=i.colorSpace),void 0!==i.flipY&&(r.flipY=i.flipY),void 0!==i.format&&(r.format=i.format),void 0!==i.type&&(r.type=i.type),void 0!==i.mipmaps&&(r.mipmaps=i.mipmaps,r.minFilter=At),1===i.mipmapCount&&(r.minFilter=dt),void 0!==i.generateMipmaps&&(r.generateMipmaps=i.generateMipmaps),r.needsUpdate=!0,e&&e(r,i)}),i,n),r}}class To extends Eo{constructor(t){super(t)}load(t,e,i,n){const s=new vi,r=new Io(this.manager);return r.setCrossOrigin(this.crossOrigin),r.setPath(this.path),r.load(t,(function(t){s.image=t,s.needsUpdate=!0,void 0!==e&&e(s)}),i,n),s}}class Bo extends Tn{constructor(t,e=1){super(),this.isLight=!0,this.type="Light",this.color=new Xn(t),this.intensity=e}dispose(){}copy(t,e){return super.copy(t,e),this.color.copy(t.color),this.intensity=t.intensity,this}toJSON(t){const e=super.toJSON(t);return e.object.color=this.color.getHex(),e.object.intensity=this.intensity,void 0!==this.groundColor&&(e.object.groundColor=this.groundColor.getHex()),void 0!==this.distance&&(e.object.distance=this.distance),void 0!==this.angle&&(e.object.angle=this.angle),void 0!==this.decay&&(e.object.decay=this.decay),void 0!==this.penumbra&&(e.object.penumbra=this.penumbra),void 0!==this.shadow&&(e.object.shadow=this.shadow.toJSON()),void 0!==this.target&&(e.object.target=this.target.uuid),e}}const Ro=new en,Do=new Ci,Lo=new Ci;class Po{constructor(t){this.camera=t,this.intensity=1,this.bias=0,this.normalBias=0,this.radius=1,this.blurSamples=8,this.mapSize=new $e(512,512),this.map=null,this.mapPass=null,this.matrix=new en,this.autoUpdate=!0,this.needsUpdate=!1,this._frustum=new Mr,this._frameExtents=new $e(1,1),this._viewportCount=1,this._viewports=[new bi(0,0,1,1)]}getViewportCount(){return this._viewportCount}getFrustum(){return this._frustum}updateMatrices(t){const e=this.camera,i=this.matrix;Do.setFromMatrixPosition(t.matrixWorld),e.position.copy(Do),Lo.setFromMatrixPosition(t.target.matrixWorld),e.lookAt(Lo),e.updateMatrixWorld(),Ro.multiplyMatrices(e.projectionMatrix,e.matrixWorldInverse),this._frustum.setFromProjectionMatrix(Ro),i.set(.5,0,0,.5,0,.5,0,.5,0,0,.5,.5,0,0,0,1),i.multiply(Ro)}getViewport(t){return this._viewports[t]}getFrameExtents(){return this._frameExtents}dispose(){this.map&&this.map.dispose(),this.mapPass&&this.mapPass.dispose()}copy(t){return this.camera=t.camera.clone(),this.intensity=t.intensity,this.bias=t.bias,this.radius=t.radius,this.mapSize.copy(t.mapSize),this}clone(){return(new this.constructor).copy(this)}toJSON(){const t={};return 1!==this.intensity&&(t.intensity=this.intensity),0!==this.bias&&(t.bias=this.bias),0!==this.normalBias&&(t.normalBias=this.normalBias),1!==this.radius&&(t.radius=this.radius),512===this.mapSize.x&&512===this.mapSize.y||(t.mapSize=this.mapSize.toArray()),t.camera=this.camera.toJSON(!1).object,delete t.camera.matrix,t}}class Uo extends Po{constructor(){super(new ks(50,1,.5,500)),this.isSpotLightShadow=!0,this.focus=1}updateMatrices(t){const e=this.camera,i=2*Ve*t.angle*this.focus,n=this.mapSize.width/this.mapSize.height,s=t.distance||e.far;i===e.fov&&n===e.aspect&&s===e.far||(e.fov=i,e.aspect=n,e.far=s,e.updateProjectionMatrix()),super.updateMatrices(t)}copy(t){return super.copy(t),this.focus=t.focus,this}}class Fo extends Bo{constructor(t,e,i=0,n=Math.PI/3,s=0,r=2){super(t,e),this.isSpotLight=!0,this.type="SpotLight",this.position.copy(Tn.DEFAULT_UP),this.updateMatrix(),this.target=new Tn,this.distance=i,this.angle=n,this.penumbra=s,this.decay=r,this.map=null,this.shadow=new Uo}get power(){return this.intensity*Math.PI}set power(t){this.intensity=t/Math.PI}dispose(){this.shadow.dispose()}copy(t,e){return super.copy(t,e),this.distance=t.distance,this.angle=t.angle,this.penumbra=t.penumbra,this.decay=t.decay,this.target=t.target.clone(),this.shadow=t.shadow.clone(),this}}const No=new en,Oo=new Ci,Qo=new Ci;class ko extends Po{constructor(){super(new ks(90,1,.5,500)),this.isPointLightShadow=!0,this._frameExtents=new $e(4,2),this._viewportCount=6,this._viewports=[new bi(2,1,1,1),new bi(0,1,1,1),new bi(3,1,1,1),new bi(1,1,1,1),new bi(3,0,1,1),new bi(1,0,1,1)],this._cubeDirections=[new Ci(1,0,0),new Ci(-1,0,0),new Ci(0,0,1),new Ci(0,0,-1),new Ci(0,1,0),new Ci(0,-1,0)],this._cubeUps=[new Ci(0,1,0),new Ci(0,1,0),new Ci(0,1,0),new Ci(0,1,0),new Ci(0,0,1),new Ci(0,0,-1)]}updateMatrices(t,e=0){const i=this.camera,n=this.matrix,s=t.distance||i.far;s!==i.far&&(i.far=s,i.updateProjectionMatrix()),Oo.setFromMatrixPosition(t.matrixWorld),i.position.copy(Oo),Qo.copy(i.position),Qo.add(this._cubeDirections[e]),i.up.copy(this._cubeUps[e]),i.lookAt(Qo),i.updateMatrixWorld(),n.makeTranslation(-Oo.x,-Oo.y,-Oo.z),No.multiplyMatrices(i.projectionMatrix,i.matrixWorldInverse),this._frustum.setFromProjectionMatrix(No)}}class Go extends Bo{constructor(t,e,i=0,n=2){super(t,e),this.isPointLight=!0,this.type="PointLight",this.distance=i,this.decay=n,this.shadow=new ko}get power(){return 4*this.intensity*Math.PI}set power(t){this.intensity=t/(4*Math.PI)}dispose(){this.shadow.dispose()}copy(t,e){return super.copy(t,e),this.distance=t.distance,this.decay=t.decay,this.shadow=t.shadow.clone(),this}}class Ho extends Fs{constructor(t=-1,e=1,i=1,n=-1,s=.1,r=2e3){super(),this.isOrthographicCamera=!0,this.type="OrthographicCamera",this.zoom=1,this.view=null,this.left=t,this.right=e,this.top=i,this.bottom=n,this.near=s,this.far=r,this.updateProjectionMatrix()}copy(t,e){return super.copy(t,e),this.left=t.left,this.right=t.right,this.top=t.top,this.bottom=t.bottom,this.near=t.near,this.far=t.far,this.zoom=t.zoom,this.view=null===t.view?null:Object.assign({},t.view),this}setViewOffset(t,e,i,n,s,r){null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1}),this.view.enabled=!0,this.view.fullWidth=t,this.view.fullHeight=e,this.view.offsetX=i,this.view.offsetY=n,this.view.width=s,this.view.height=r,this.updateProjectionMatrix()}clearViewOffset(){null!==this.view&&(this.view.enabled=!1),this.updateProjectionMatrix()}updateProjectionMatrix(){const t=(this.right-this.left)/(2*this.zoom),e=(this.top-this.bottom)/(2*this.zoom),i=(this.right+this.left)/2,n=(this.top+this.bottom)/2;let s=i-t,r=i+t,a=n+e,o=n-e;if(null!==this.view&&this.view.enabled){const t=(this.right-this.left)/this.view.fullWidth/this.zoom,e=(this.top-this.bottom)/this.view.fullHeight/this.zoom;s+=t*this.view.offsetX,r=s+t*this.view.width,a-=e*this.view.offsetY,o=a-e*this.view.height}this.projectionMatrix.makeOrthographic(s,r,a,o,this.near,this.far,this.coordinateSystem),this.projectionMatrixInverse.copy(this.projectionMatrix).invert()}toJSON(t){const e=super.toJSON(t);return e.object.zoom=this.zoom,e.object.left=this.left,e.object.right=this.right,e.object.top=this.top,e.object.bottom=this.bottom,e.object.near=this.near,e.object.far=this.far,null!==this.view&&(e.object.view=Object.assign({},this.view)),e}}class zo extends Po{constructor(){super(new Ho(-5,5,5,-5,.5,500)),this.isDirectionalLightShadow=!0}}class Vo extends Bo{constructor(t,e){super(t,e),this.isDirectionalLight=!0,this.type="DirectionalLight",this.position.copy(Tn.DEFAULT_UP),this.updateMatrix(),this.target=new Tn,this.shadow=new zo}dispose(){this.shadow.dispose()}copy(t){return super.copy(t),this.target=t.target.clone(),this.shadow=t.shadow.clone(),this}}class Wo{constructor(){this.isSphericalHarmonics3=!0,this.coefficients=[];for(let t=0;t<9;t++)this.coefficients.push(new Ci)}set(t){for(let e=0;e<9;e++)this.coefficients[e].copy(t[e]);return this}zero(){for(let t=0;t<9;t++)this.coefficients[t].set(0,0,0);return this}getAt(t,e){const i=t.x,n=t.y,s=t.z,r=this.coefficients;return e.copy(r[0]).multiplyScalar(.282095),e.addScaledVector(r[1],.488603*n),e.addScaledVector(r[2],.488603*s),e.addScaledVector(r[3],.488603*i),e.addScaledVector(r[4],i*n*1.092548),e.addScaledVector(r[5],n*s*1.092548),e.addScaledVector(r[6],.315392*(3*s*s-1)),e.addScaledVector(r[7],i*s*1.092548),e.addScaledVector(r[8],.546274*(i*i-n*n)),e}getIrradianceAt(t,e){const i=t.x,n=t.y,s=t.z,r=this.coefficients;return e.copy(r[0]).multiplyScalar(.886227),e.addScaledVector(r[1],1.023328*n),e.addScaledVector(r[2],1.023328*s),e.addScaledVector(r[3],1.023328*i),e.addScaledVector(r[4],.858086*i*n),e.addScaledVector(r[5],.858086*n*s),e.addScaledVector(r[6],.743125*s*s-.247708),e.addScaledVector(r[7],.858086*i*s),e.addScaledVector(r[8],.429043*(i*i-n*n)),e}add(t){for(let e=0;e<9;e++)this.coefficients[e].add(t.coefficients[e]);return this}addScaledSH(t,e){for(let i=0;i<9;i++)this.coefficients[i].addScaledVector(t.coefficients[i],e);return this}scale(t){for(let e=0;e<9;e++)this.coefficients[e].multiplyScalar(t);return this}lerp(t,e){for(let i=0;i<9;i++)this.coefficients[i].lerp(t.coefficients[i],e);return this}equals(t){for(let e=0;e<9;e++)if(!this.coefficients[e].equals(t.coefficients[e]))return!1;return!0}copy(t){return this.set(t.coefficients)}clone(){return(new this.constructor).copy(this)}fromArray(t,e=0){const i=this.coefficients;for(let n=0;n<9;n++)i[n].fromArray(t,e+3*n);return this}toArray(t=[],e=0){const i=this.coefficients;for(let n=0;n<9;n++)i[n].toArray(t,e+3*n);return t}static getBasisAt(t,e){const i=t.x,n=t.y,s=t.z;e[0]=.282095,e[1]=.488603*n,e[2]=.488603*s,e[3]=.488603*i,e[4]=1.092548*i*n,e[5]=1.092548*n*s,e[6]=.315392*(3*s*s-1),e[7]=1.092548*i*s,e[8]=.546274*(i*i-n*n)}}class qo extends Bo{constructor(t=new Wo,e=1){super(void 0,e),this.isLightProbe=!0,this.sh=t}copy(t){return super.copy(t),this.sh.copy(t.sh),this}fromJSON(t){return this.intensity=t.intensity,this.sh.fromArray(t.sh),this}toJSON(t){const e=super.toJSON(t);return e.object.sh=this.sh.toArray(),e}}class jo{static decodeText(t){if(console.warn("THREE.LoaderUtils: decodeText() has been deprecated with r165 and will be removed with r175. Use TextDecoder instead."),"undefined"!=typeof TextDecoder)return(new TextDecoder).decode(t);let e="";for(let i=0,n=t.length;i<n;i++)e+=String.fromCharCode(t[i]);try{return decodeURIComponent(escape(e))}catch(t){return e}}static extractUrlBase(t){const e=t.lastIndexOf("/");return-1===e?"./":t.slice(0,e+1)}static resolveURL(t,e){return"string"!=typeof t||""===t?"":(/^https?:\/\//i.test(e)&&/^\//.test(t)&&(e=e.replace(/(^https?:\/\/[^\/]+).*/i,"$1")),/^(https?:)?\/\//i.test(t)||/^data:.*,.*$/i.test(t)||/^blob:.*$/i.test(t)?t:e+t)}}class Xo extends Eo{constructor(t){super(t),this.isImageBitmapLoader=!0,"undefined"==typeof createImageBitmap&&console.warn("THREE.ImageBitmapLoader: createImageBitmap() not supported."),"undefined"==typeof fetch&&console.warn("THREE.ImageBitmapLoader: fetch() not supported."),this.options={premultiplyAlpha:"none"}}setOptions(t){return this.options=t,this}load(t,e,i,n){void 0===t&&(t=""),void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const s=this,r=yo.get(t);if(void 0!==r)return s.manager.itemStart(t),r.then?void r.then((i=>{e&&e(i),s.manager.itemEnd(t)})).catch((t=>{n&&n(t)})):(setTimeout((function(){e&&e(r),s.manager.itemEnd(t)}),0),r);const a={};a.credentials="anonymous"===this.crossOrigin?"same-origin":"include",a.headers=this.requestHeader;const o=fetch(t,a).then((function(t){return t.blob()})).then((function(t){return createImageBitmap(t,Object.assign(s.options,{colorSpaceConversion:"none"}))})).then((function(i){return yo.add(t,i),e&&e(i),s.manager.itemEnd(t),i})).catch((function(e){n&&n(e),yo.remove(t),s.manager.itemError(t),s.manager.itemEnd(t)}));yo.add(t,o),s.manager.itemStart(t)}}class Yo extends ks{constructor(t=[]){super(),this.isArrayCamera=!0,this.cameras=t,this.index=0}}class Ko{constructor(t,e,i){let n,s,r;switch(this.binding=t,this.valueSize=i,e){case"quaternion":n=this._slerp,s=this._slerpAdditive,r=this._setAdditiveIdentityQuaternion,this.buffer=new Float64Array(6*i),this._workIndex=5;break;case"string":case"bool":n=this._select,s=this._select,r=this._setAdditiveIdentityOther,this.buffer=new Array(5*i);break;default:n=this._lerp,s=this._lerpAdditive,r=this._setAdditiveIdentityNumeric,this.buffer=new Float64Array(5*i)}this._mixBufferRegion=n,this._mixBufferRegionAdditive=s,this._setIdentity=r,this._origIndex=3,this._addIndex=4,this.cumulativeWeight=0,this.cumulativeWeightAdditive=0,this.useCount=0,this.referenceCount=0}accumulate(t,e){const i=this.buffer,n=this.valueSize,s=t*n+n;let r=this.cumulativeWeight;if(0===r){for(let t=0;t!==n;++t)i[s+t]=i[t];r=e}else{r+=e;const t=e/r;this._mixBufferRegion(i,s,0,t,n)}this.cumulativeWeight=r}accumulateAdditive(t){const e=this.buffer,i=this.valueSize,n=i*this._addIndex;0===this.cumulativeWeightAdditive&&this._setIdentity(),this._mixBufferRegionAdditive(e,n,0,t,i),this.cumulativeWeightAdditive+=t}apply(t){const e=this.valueSize,i=this.buffer,n=t*e+e,s=this.cumulativeWeight,r=this.cumulativeWeightAdditive,a=this.binding;if(this.cumulativeWeight=0,this.cumulativeWeightAdditive=0,s<1){const t=e*this._origIndex;this._mixBufferRegion(i,n,t,1-s,e)}r>0&&this._mixBufferRegionAdditive(i,n,this._addIndex*e,1,e);for(let t=e,s=e+e;t!==s;++t)if(i[t]!==i[t+e]){a.setValue(i,n);break}}saveOriginalState(){const t=this.binding,e=this.buffer,i=this.valueSize,n=i*this._origIndex;t.getValue(e,n);for(let t=i,s=n;t!==s;++t)e[t]=e[n+t%i];this._setIdentity(),this.cumulativeWeight=0,this.cumulativeWeightAdditive=0}restoreOriginalState(){const t=3*this.valueSize;this.binding.setValue(this.buffer,t)}_setAdditiveIdentityNumeric(){const t=this._addIndex*this.valueSize,e=t+this.valueSize;for(let i=t;i<e;i++)this.buffer[i]=0}_setAdditiveIdentityQuaternion(){this._setAdditiveIdentityNumeric(),this.buffer[this._addIndex*this.valueSize+3]=1}_setAdditiveIdentityOther(){const t=this._origIndex*this.valueSize,e=this._addIndex*this.valueSize;for(let i=0;i<this.valueSize;i++)this.buffer[e+i]=this.buffer[t+i]}_select(t,e,i,n,s){if(n>=.5)for(let n=0;n!==s;++n)t[e+n]=t[i+n]}_slerp(t,e,i,n){Si.slerpFlat(t,e,t,e,t,i,n)}_slerpAdditive(t,e,i,n,s){const r=this._workIndex*s;Si.multiplyQuaternionsFlat(t,r,t,e,t,i),Si.slerpFlat(t,e,t,e,t,r,n)}_lerp(t,e,i,n,s){const r=1-n;for(let a=0;a!==s;++a){const s=e+a;t[s]=t[s]*r+t[i+a]*n}}_lerpAdditive(t,e,i,n,s){for(let r=0;r!==s;++r){const s=e+r;t[s]=t[s]+t[i+r]*n}}}const Jo="\\[\\]\\.:\\/",$o=new RegExp("["+Jo+"]","g"),Zo="[^"+Jo+"]",tl="[^"+Jo.replace("\\.","")+"]",el=new RegExp("^"+/((?:WC+[\/:])*)/.source.replace("WC",Zo)+/(WCOD+)?/.source.replace("WCOD",tl)+/(?:\.(WC+)(?:\[(.+)\])?)?/.source.replace("WC",Zo)+/\.(WC+)(?:\[(.+)\])?/.source.replace("WC",Zo)+"$"),il=["material","materials","bones","map"];class nl{constructor(t,e,i){this.path=e,this.parsedPath=i||nl.parseTrackName(e),this.node=nl.findNode(t,this.parsedPath.nodeName),this.rootNode=t,this.getValue=this._getValue_unbound,this.setValue=this._setValue_unbound}static create(t,e,i){return t&&t.isAnimationObjectGroup?new nl.Composite(t,e,i):new nl(t,e,i)}static sanitizeNodeName(t){return t.replace(/\s/g,"_").replace($o,"")}static parseTrackName(t){const e=el.exec(t);if(null===e)throw new Error("PropertyBinding: Cannot parse trackName: "+t);const i={nodeName:e[2],objectName:e[3],objectIndex:e[4],propertyName:e[5],propertyIndex:e[6]},n=i.nodeName&&i.nodeName.lastIndexOf(".");if(void 0!==n&&-1!==n){const t=i.nodeName.substring(n+1);-1!==il.indexOf(t)&&(i.nodeName=i.nodeName.substring(0,n),i.objectName=t)}if(null===i.propertyName||0===i.propertyName.length)throw new Error("PropertyBinding: can not parse propertyName from trackName: "+t);return i}static findNode(t,e){if(void 0===e||""===e||"."===e||-1===e||e===t.name||e===t.uuid)return t;if(t.skeleton){const i=t.skeleton.getBoneByName(e);if(void 0!==i)return i}if(t.children){const i=function(t){for(let n=0;n<t.length;n++){const s=t[n];if(s.name===e||s.uuid===e)return s;const r=i(s.children);if(r)return r}return null},n=i(t.children);if(n)return n}return null}_getValue_unavailable(){}_setValue_unavailable(){}_getValue_direct(t,e){t[e]=this.targetObject[this.propertyName]}_getValue_array(t,e){const i=this.resolvedProperty;for(let n=0,s=i.length;n!==s;++n)t[e++]=i[n]}_getValue_arrayElement(t,e){t[e]=this.resolvedProperty[this.propertyIndex]}_getValue_toArray(t,e){this.resolvedProperty.toArray(t,e)}_setValue_direct(t,e){this.targetObject[this.propertyName]=t[e]}_setValue_direct_setNeedsUpdate(t,e){this.targetObject[this.propertyName]=t[e],this.targetObject.needsUpdate=!0}_setValue_direct_setMatrixWorldNeedsUpdate(t,e){this.targetObject[this.propertyName]=t[e],this.targetObject.matrixWorldNeedsUpdate=!0}_setValue_array(t,e){const i=this.resolvedProperty;for(let n=0,s=i.length;n!==s;++n)i[n]=t[e++]}_setValue_array_setNeedsUpdate(t,e){const i=this.resolvedProperty;for(let n=0,s=i.length;n!==s;++n)i[n]=t[e++];this.targetObject.needsUpdate=!0}_setValue_array_setMatrixWorldNeedsUpdate(t,e){const i=this.resolvedProperty;for(let n=0,s=i.length;n!==s;++n)i[n]=t[e++];this.targetObject.matrixWorldNeedsUpdate=!0}_setValue_arrayElement(t,e){this.resolvedProperty[this.propertyIndex]=t[e]}_setValue_arrayElement_setNeedsUpdate(t,e){this.resolvedProperty[this.propertyIndex]=t[e],this.targetObject.needsUpdate=!0}_setValue_arrayElement_setMatrixWorldNeedsUpdate(t,e){this.resolvedProperty[this.propertyIndex]=t[e],this.targetObject.matrixWorldNeedsUpdate=!0}_setValue_fromArray(t,e){this.resolvedProperty.fromArray(t,e)}_setValue_fromArray_setNeedsUpdate(t,e){this.resolvedProperty.fromArray(t,e),this.targetObject.needsUpdate=!0}_setValue_fromArray_setMatrixWorldNeedsUpdate(t,e){this.resolvedProperty.fromArray(t,e),this.targetObject.matrixWorldNeedsUpdate=!0}_getValue_unbound(t,e){this.bind(),this.getValue(t,e)}_setValue_unbound(t,e){this.bind(),this.setValue(t,e)}bind(){let t=this.node;const e=this.parsedPath,i=e.objectName,n=e.propertyName;let s=e.propertyIndex;if(t||(t=nl.findNode(this.rootNode,e.nodeName),this.node=t),this.getValue=this._getValue_unavailable,this.setValue=this._setValue_unavailable,!t)return void console.warn("THREE.PropertyBinding: No target node found for track: "+this.path+".");if(i){let n=e.objectIndex;switch(i){case"materials":if(!t.material)return void console.error("THREE.PropertyBinding: Can not bind to material as node does not have a material.",this);if(!t.material.materials)return void console.error("THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.",this);t=t.material.materials;break;case"bones":if(!t.skeleton)return void console.error("THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.",this);t=t.skeleton.bones;for(let e=0;e<t.length;e++)if(t[e].name===n){n=e;break}break;case"map":if("map"in t){t=t.map;break}if(!t.material)return void console.error("THREE.PropertyBinding: Can not bind to material as node does not have a material.",this);if(!t.material.map)return void console.error("THREE.PropertyBinding: Can not bind to material.map as node.material does not have a map.",this);t=t.material.map;break;default:if(void 0===t[i])return void console.error("THREE.PropertyBinding: Can not bind to objectName of node undefined.",this);t=t[i]}if(void 0!==n){if(void 0===t[n])return void console.error("THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.",this,t);t=t[n]}}const r=t[n];if(void 0===r){const i=e.nodeName;return void console.error("THREE.PropertyBinding: Trying to update property for track: "+i+"."+n+" but it wasn't found.",t)}let a=this.Versioning.None;this.targetObject=t,!0===t.isMaterial?a=this.Versioning.NeedsUpdate:!0===t.isObject3D&&(a=this.Versioning.MatrixWorldNeedsUpdate);let o=this.BindingType.Direct;if(void 0!==s){if("morphTargetInfluences"===n){if(!t.geometry)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.",this);if(!t.geometry.morphAttributes)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.",this);void 0!==t.morphTargetDictionary[s]&&(s=t.morphTargetDictionary[s])}o=this.BindingType.ArrayElement,this.resolvedProperty=r,this.propertyIndex=s}else void 0!==r.fromArray&&void 0!==r.toArray?(o=this.BindingType.HasFromToArray,this.resolvedProperty=r):Array.isArray(r)?(o=this.BindingType.EntireArray,this.resolvedProperty=r):this.propertyName=n;this.getValue=this.GetterByBindingType[o],this.setValue=this.SetterByBindingTypeAndVersioning[o][a]}unbind(){this.node=null,this.getValue=this._getValue_unbound,this.setValue=this._setValue_unbound}}nl.Composite=class{constructor(t,e,i){const n=i||nl.parseTrackName(e);this._targetGroup=t,this._bindings=t.subscribe_(e,n)}getValue(t,e){this.bind();const i=this._targetGroup.nCachedObjects_,n=this._bindings[i];void 0!==n&&n.getValue(t,e)}setValue(t,e){const i=this._bindings;for(let n=this._targetGroup.nCachedObjects_,s=i.length;n!==s;++n)i[n].setValue(t,e)}bind(){const t=this._bindings;for(let e=this._targetGroup.nCachedObjects_,i=t.length;e!==i;++e)t[e].bind()}unbind(){const t=this._bindings;for(let e=this._targetGroup.nCachedObjects_,i=t.length;e!==i;++e)t[e].unbind()}},nl.prototype.BindingType={Direct:0,EntireArray:1,ArrayElement:2,HasFromToArray:3},nl.prototype.Versioning={None:0,NeedsUpdate:1,MatrixWorldNeedsUpdate:2},nl.prototype.GetterByBindingType=[nl.prototype._getValue_direct,nl.prototype._getValue_array,nl.prototype._getValue_arrayElement,nl.prototype._getValue_toArray],nl.prototype.SetterByBindingTypeAndVersioning=[[nl.prototype._setValue_direct,nl.prototype._setValue_direct_setNeedsUpdate,nl.prototype._setValue_direct_setMatrixWorldNeedsUpdate],[nl.prototype._setValue_array,nl.prototype._setValue_array_setNeedsUpdate,nl.prototype._setValue_array_setMatrixWorldNeedsUpdate],[nl.prototype._setValue_arrayElement,nl.prototype._setValue_arrayElement_setNeedsUpdate,nl.prototype._setValue_arrayElement_setMatrixWorldNeedsUpdate],[nl.prototype._setValue_fromArray,nl.prototype._setValue_fromArray_setNeedsUpdate,nl.prototype._setValue_fromArray_setMatrixWorldNeedsUpdate]];class sl{constructor(t,e,i=null,n=e.blendMode){this._mixer=t,this._clip=e,this._localRoot=i,this.blendMode=n;const s=e.tracks,r=s.length,a=new Array(r),o={endingStart:ve,endingEnd:ve};for(let t=0;t!==r;++t){const e=s[t].createInterpolant(null);a[t]=e,e.settings=o}this._interpolantSettings=o,this._interpolants=a,this._propertyBindings=new Array(r),this._cacheIndex=null,this._byClipCacheIndex=null,this._timeScaleInterpolant=null,this._weightInterpolant=null,this.loop=pe,this._loopCount=-1,this._startTime=null,this.time=0,this.timeScale=1,this._effectiveTimeScale=1,this.weight=1,this._effectiveWeight=1,this.repetitions=1/0,this.paused=!1,this.enabled=!0,this.clampWhenFinished=!1,this.zeroSlopeAtStart=!0,this.zeroSlopeAtEnd=!0}play(){return this._mixer._activateAction(this),this}stop(){return this._mixer._deactivateAction(this),this.reset()}reset(){return this.paused=!1,this.enabled=!0,this.time=0,this._loopCount=-1,this._startTime=null,this.stopFading().stopWarping()}isRunning(){return this.enabled&&!this.paused&&0!==this.timeScale&&null===this._startTime&&this._mixer._isActiveAction(this)}isScheduled(){return this._mixer._isActiveAction(this)}startAt(t){return this._startTime=t,this}setLoop(t,e){return this.loop=t,this.repetitions=e,this}setEffectiveWeight(t){return this.weight=t,this._effectiveWeight=this.enabled?t:0,this.stopFading()}getEffectiveWeight(){return this._effectiveWeight}fadeIn(t){return this._scheduleFading(t,0,1)}fadeOut(t){return this._scheduleFading(t,1,0)}crossFadeFrom(t,e,i){if(t.fadeOut(e),this.fadeIn(e),i){const i=this._clip.duration,n=t._clip.duration,s=n/i,r=i/n;t.warp(1,s,e),this.warp(r,1,e)}return this}crossFadeTo(t,e,i){return t.crossFadeFrom(this,e,i)}stopFading(){const t=this._weightInterpolant;return null!==t&&(this._weightInterpolant=null,this._mixer._takeBackControlInterpolant(t)),this}setEffectiveTimeScale(t){return this.timeScale=t,this._effectiveTimeScale=this.paused?0:t,this.stopWarping()}getEffectiveTimeScale(){return this._effectiveTimeScale}setDuration(t){return this.timeScale=this._clip.duration/t,this.stopWarping()}syncWith(t){return this.time=t.time,this.timeScale=t.timeScale,this.stopWarping()}halt(t){return this.warp(this._effectiveTimeScale,0,t)}warp(t,e,i){const n=this._mixer,s=n.time,r=this.timeScale;let a=this._timeScaleInterpolant;null===a&&(a=n._lendControlInterpolant(),this._timeScaleInterpolant=a);const o=a.parameterPositions,l=a.sampleValues;return o[0]=s,o[1]=s+i,l[0]=t/r,l[1]=e/r,this}stopWarping(){const t=this._timeScaleInterpolant;return null!==t&&(this._timeScaleInterpolant=null,this._mixer._takeBackControlInterpolant(t)),this}getMixer(){return this._mixer}getClip(){return this._clip}getRoot(){return this._localRoot||this._mixer._root}_update(t,e,i,n){if(!this.enabled)return void this._updateWeight(t);const s=this._startTime;if(null!==s){const n=(t-s)*i;n<0||0===i?e=0:(this._startTime=null,e=i*n)}e*=this._updateTimeScale(t);const r=this._updateTime(e),a=this._updateWeight(t);if(a>0){const t=this._interpolants,e=this._propertyBindings;if(2501===this.blendMode)for(let i=0,n=t.length;i!==n;++i)t[i].evaluate(r),e[i].accumulateAdditive(a);else for(let i=0,s=t.length;i!==s;++i)t[i].evaluate(r),e[i].accumulate(n,a)}}_updateWeight(t){let e=0;if(this.enabled){e=this.weight;const i=this._weightInterpolant;if(null!==i){const n=i.evaluate(t)[0];e*=n,t>i.parameterPositions[1]&&(this.stopFading(),0===n&&(this.enabled=!1))}}return this._effectiveWeight=e,e}_updateTimeScale(t){let e=0;if(!this.paused){e=this.timeScale;const i=this._timeScaleInterpolant;if(null!==i){e*=i.evaluate(t)[0],t>i.parameterPositions[1]&&(this.stopWarping(),0===e?this.paused=!0:this.timeScale=e)}}return this._effectiveTimeScale=e,e}_updateTime(t){const e=this._clip.duration,i=this.loop;let n=this.time+t,s=this._loopCount;const r=i===Ae;if(0===t)return-1===s||!r||1&~s?n:e-n;if(i===de){-1===s&&(this._loopCount=0,this._setEndings(!0,!0,!1));t:{if(n>=e)n=e;else{if(!(n<0)){this.time=n;break t}n=0}this.clampWhenFinished?this.paused=!0:this.enabled=!1,this.time=n,this._mixer.dispatchEvent({type:"finished",action:this,direction:t<0?-1:1})}}else{if(-1===s&&(t>=0?(s=0,this._setEndings(!0,0===this.repetitions,r)):this._setEndings(0===this.repetitions,!0,r)),n>=e||n<0){const i=Math.floor(n/e);n-=e*i,s+=Math.abs(i);const a=this.repetitions-s;if(a<=0)this.clampWhenFinished?this.paused=!0:this.enabled=!1,n=t>0?e:0,this.time=n,this._mixer.dispatchEvent({type:"finished",action:this,direction:t>0?1:-1});else{if(1===a){const e=t<0;this._setEndings(e,!e,r)}else this._setEndings(!1,!1,r);this._loopCount=s,this.time=n,this._mixer.dispatchEvent({type:"loop",action:this,loopDelta:i})}}else this.time=n;if(r&&!(1&~s))return e-n}return n}_setEndings(t,e,i){const n=this._interpolantSettings;i?(n.endingStart=be,n.endingEnd=be):(n.endingStart=t?this.zeroSlopeAtStart?be:ve:ye,n.endingEnd=e?this.zeroSlopeAtEnd?be:ve:ye)}_scheduleFading(t,e,i){const n=this._mixer,s=n.time;let r=this._weightInterpolant;null===r&&(r=n._lendControlInterpolant(),this._weightInterpolant=r);const a=r.parameterPositions,o=r.sampleValues;return a[0]=s,o[0]=e,a[1]=s+t,o[1]=i,this}}const rl=new Float32Array(1);class al extends ke{constructor(t){super(),this._root=t,this._initMemoryManager(),this._accuIndex=0,this.time=0,this.timeScale=1}_bindAction(t,e){const i=t._localRoot||this._root,n=t._clip.tracks,s=n.length,r=t._propertyBindings,a=t._interpolants,o=i.uuid,l=this._bindingsByRootAndName;let c=l[o];void 0===c&&(c={},l[o]=c);for(let t=0;t!==s;++t){const s=n[t],l=s.name;let h=c[l];if(void 0!==h)++h.referenceCount,r[t]=h;else{if(h=r[t],void 0!==h){null===h._cacheIndex&&(++h.referenceCount,this._addInactiveBinding(h,o,l));continue}const n=e&&e._propertyBindings[t].binding.parsedPath;h=new Ko(nl.create(i,l,n),s.ValueTypeName,s.getValueSize()),++h.referenceCount,this._addInactiveBinding(h,o,l),r[t]=h}a[t].resultBuffer=h.buffer}}_activateAction(t){if(!this._isActiveAction(t)){if(null===t._cacheIndex){const e=(t._localRoot||this._root).uuid,i=t._clip.uuid,n=this._actionsByClip[i];this._bindAction(t,n&&n.knownActions[0]),this._addInactiveAction(t,i,e)}const e=t._propertyBindings;for(let t=0,i=e.length;t!==i;++t){const i=e[t];0==i.useCount++&&(this._lendBinding(i),i.saveOriginalState())}this._lendAction(t)}}_deactivateAction(t){if(this._isActiveAction(t)){const e=t._propertyBindings;for(let t=0,i=e.length;t!==i;++t){const i=e[t];0==--i.useCount&&(i.restoreOriginalState(),this._takeBackBinding(i))}this._takeBackAction(t)}}_initMemoryManager(){this._actions=[],this._nActiveActions=0,this._actionsByClip={},this._bindings=[],this._nActiveBindings=0,this._bindingsByRootAndName={},this._controlInterpolants=[],this._nActiveControlInterpolants=0;const t=this;this.stats={actions:{get total(){return t._actions.length},get inUse(){return t._nActiveActions}},bindings:{get total(){return t._bindings.length},get inUse(){return t._nActiveBindings}},controlInterpolants:{get total(){return t._controlInterpolants.length},get inUse(){return t._nActiveControlInterpolants}}}}_isActiveAction(t){const e=t._cacheIndex;return null!==e&&e<this._nActiveActions}_addInactiveAction(t,e,i){const n=this._actions,s=this._actionsByClip;let r=s[e];if(void 0===r)r={knownActions:[t],actionByRoot:{}},t._byClipCacheIndex=0,s[e]=r;else{const e=r.knownActions;t._byClipCacheIndex=e.length,e.push(t)}t._cacheIndex=n.length,n.push(t),r.actionByRoot[i]=t}_removeInactiveAction(t){const e=this._actions,i=e[e.length-1],n=t._cacheIndex;i._cacheIndex=n,e[n]=i,e.pop(),t._cacheIndex=null;const s=t._clip.uuid,r=this._actionsByClip,a=r[s],o=a.knownActions,l=o[o.length-1],c=t._byClipCacheIndex;l._byClipCacheIndex=c,o[c]=l,o.pop(),t._byClipCacheIndex=null;delete a.actionByRoot[(t._localRoot||this._root).uuid],0===o.length&&delete r[s],this._removeInactiveBindingsForAction(t)}_removeInactiveBindingsForAction(t){const e=t._propertyBindings;for(let t=0,i=e.length;t!==i;++t){const i=e[t];0==--i.referenceCount&&this._removeInactiveBinding(i)}}_lendAction(t){const e=this._actions,i=t._cacheIndex,n=this._nActiveActions++,s=e[n];t._cacheIndex=n,e[n]=t,s._cacheIndex=i,e[i]=s}_takeBackAction(t){const e=this._actions,i=t._cacheIndex,n=--this._nActiveActions,s=e[n];t._cacheIndex=n,e[n]=t,s._cacheIndex=i,e[i]=s}_addInactiveBinding(t,e,i){const n=this._bindingsByRootAndName,s=this._bindings;let r=n[e];void 0===r&&(r={},n[e]=r),r[i]=t,t._cacheIndex=s.length,s.push(t)}_removeInactiveBinding(t){const e=this._bindings,i=t.binding,n=i.rootNode.uuid,s=i.path,r=this._bindingsByRootAndName,a=r[n],o=e[e.length-1],l=t._cacheIndex;o._cacheIndex=l,e[l]=o,e.pop(),delete a[s],0===Object.keys(a).length&&delete r[n]}_lendBinding(t){const e=this._bindings,i=t._cacheIndex,n=this._nActiveBindings++,s=e[n];t._cacheIndex=n,e[n]=t,s._cacheIndex=i,e[i]=s}_takeBackBinding(t){const e=this._bindings,i=t._cacheIndex,n=--this._nActiveBindings,s=e[n];t._cacheIndex=n,e[n]=t,s._cacheIndex=i,e[i]=s}_lendControlInterpolant(){const t=this._controlInterpolants,e=this._nActiveControlInterpolants++;let i=t[e];return void 0===i&&(i=new oo(new Float32Array(2),new Float32Array(2),1,rl),i.__cacheIndex=e,t[e]=i),i}_takeBackControlInterpolant(t){const e=this._controlInterpolants,i=t.__cacheIndex,n=--this._nActiveControlInterpolants,s=e[n];t.__cacheIndex=n,e[n]=t,s.__cacheIndex=i,e[i]=s}clipAction(t,e,i){const n=e||this._root,s=n.uuid;let r="string"==typeof t?vo.findByName(n,t):t;const a=null!==r?r.uuid:t,o=this._actionsByClip[a];let l=null;if(void 0===i&&(i=null!==r?r.blendMode:xe),void 0!==o){const t=o.actionByRoot[s];if(void 0!==t&&t.blendMode===i)return t;l=o.knownActions[0],null===r&&(r=l._clip)}if(null===r)return null;const c=new sl(this,r,e,i);return this._bindAction(c,l),this._addInactiveAction(c,a,s),c}existingAction(t,e){const i=e||this._root,n=i.uuid,s="string"==typeof t?vo.findByName(i,t):t,r=s?s.uuid:t,a=this._actionsByClip[r];return void 0!==a&&a.actionByRoot[n]||null}stopAllAction(){const t=this._actions;for(let e=this._nActiveActions-1;e>=0;--e)t[e].stop();return this}update(t){t*=this.timeScale;const e=this._actions,i=this._nActiveActions,n=this.time+=t,s=Math.sign(t),r=this._accuIndex^=1;for(let a=0;a!==i;++a){e[a]._update(n,t,s,r)}const a=this._bindings,o=this._nActiveBindings;for(let t=0;t!==o;++t)a[t].apply(r);return this}setTime(t){this.time=0;for(let t=0;t<this._actions.length;t++)this._actions[t].time=0;return this.update(t)}getRoot(){return this._root}uncacheClip(t){const e=this._actions,i=t.uuid,n=this._actionsByClip,s=n[i];if(void 0!==s){const t=s.knownActions;for(let i=0,n=t.length;i!==n;++i){const n=t[i];this._deactivateAction(n);const s=n._cacheIndex,r=e[e.length-1];n._cacheIndex=null,n._byClipCacheIndex=null,r._cacheIndex=s,e[s]=r,e.pop(),this._removeInactiveBindingsForAction(n)}delete n[i]}}uncacheRoot(t){const e=t.uuid,i=this._actionsByClip;for(const t in i){const n=i[t].actionByRoot[e];void 0!==n&&(this._deactivateAction(n),this._removeInactiveAction(n))}const n=this._bindingsByRootAndName[e];if(void 0!==n)for(const t in n){const e=n[t];e.restoreOriginalState(),this._removeInactiveBinding(e)}}uncacheAction(t,e){const i=this.existingAction(t,e);null!==i&&(this._deactivateAction(i),this._removeInactiveAction(i))}}const ol=new en;function ll(t,e){return t.distance-e.distance}function cl(t,e,i,n){let s=!0;if(t.layers.test(e.layers)){!1===t.raycast(e,i)&&(s=!1)}if(!0===s&&!0===n){const n=t.children;for(let t=0,s=n.length;t<s;t++)cl(n[t],e,i,!0)}}class hl{constructor(t=1,e=0,i=0){this.radius=t,this.phi=e,this.theta=i}set(t,e,i){return this.radius=t,this.phi=e,this.theta=i,this}copy(t){return this.radius=t.radius,this.phi=t.phi,this.theta=t.theta,this}makeSafe(){const t=1e-6;return this.phi=qe(this.phi,t,Math.PI-t),this}setFromVector3(t){return this.setFromCartesianCoords(t.x,t.y,t.z)}setFromCartesianCoords(t,e,i){return this.radius=Math.sqrt(t*t+e*e+i*i),0===this.radius?(this.theta=0,this.phi=0):(this.theta=Math.atan2(t,i),this.phi=Math.acos(qe(e/this.radius,-1,1))),this}clone(){return(new this.constructor).copy(this)}}function ul(t,e,i,n){const s=function(t){switch(t){case mt:case gt:return{byteLength:1,components:1};case vt:case ft:case _t:return{byteLength:2,components:1};case Et:case St:return{byteLength:2,components:4};case yt:case bt:case xt:return{byteLength:4,components:1};case wt:return{byteLength:4,components:3}}throw new Error(`Unknown texture type ${t}.`)}(n);switch(i){case 1021:case 1024:return t*e;case 1025:return t*e*2;case Bt:case Rt:return t*e/s.components*s.byteLength;case Dt:case Lt:return t*e*2/s.components*s.byteLength;case 1022:return t*e*3/s.components*s.byteLength;case It:case Pt:return t*e*4/s.components*s.byteLength;case Ut:case Ft:return Math.floor((t+3)/4)*Math.floor((e+3)/4)*8;case Nt:case Ot:return Math.floor((t+3)/4)*Math.floor((e+3)/4)*16;case kt:case Ht:return Math.max(t,16)*Math.max(e,8)/4;case Qt:case Gt:return Math.max(t,8)*Math.max(e,8)/2;case zt:case Vt:return Math.floor((t+3)/4)*Math.floor((e+3)/4)*8;case Wt:case qt:return Math.floor((t+3)/4)*Math.floor((e+3)/4)*16;case jt:return Math.floor((t+4)/5)*Math.floor((e+3)/4)*16;case Xt:return Math.floor((t+4)/5)*Math.floor((e+4)/5)*16;case Yt:return Math.floor((t+5)/6)*Math.floor((e+4)/5)*16;case Kt:return Math.floor((t+5)/6)*Math.floor((e+5)/6)*16;case Jt:return Math.floor((t+7)/8)*Math.floor((e+4)/5)*16;case $t:return Math.floor((t+7)/8)*Math.floor((e+5)/6)*16;case Zt:return Math.floor((t+7)/8)*Math.floor((e+7)/8)*16;case te:return Math.floor((t+9)/10)*Math.floor((e+4)/5)*16;case ee:return Math.floor((t+9)/10)*Math.floor((e+5)/6)*16;case ie:return Math.floor((t+9)/10)*Math.floor((e+7)/8)*16;case ne:return Math.floor((t+9)/10)*Math.floor((e+9)/10)*16;case se:return Math.floor((t+11)/12)*Math.floor((e+9)/10)*16;case re:return Math.floor((t+11)/12)*Math.floor((e+11)/12)*16;case ae:case oe:case le:return Math.ceil(t/4)*Math.ceil(e/4)*16;case 36283:case ce:return Math.ceil(t/4)*Math.ceil(e/4)*8;case he:case ue:return Math.ceil(t/4)*Math.ceil(e/4)*16}throw new Error(`Unable to determine texture byte length for ${i} format.`)}
/**
 * @license
 * Copyright 2010-2025 Three.js Authors
 * SPDX-License-Identifier: MIT
 */
function dl(){let t=null,e=!1,i=null,n=null;function s(e,r){i(e,r),n=t.requestAnimationFrame(s)}return{start:function(){!0!==e&&null!==i&&(n=t.requestAnimationFrame(s),e=!0)},stop:function(){t.cancelAnimationFrame(n),e=!1},setAnimationLoop:function(t){i=t},setContext:function(e){t=e}}}function pl(t){const e=new WeakMap;return{get:function(t){return t.isInterleavedBufferAttribute&&(t=t.data),e.get(t)},remove:function(i){i.isInterleavedBufferAttribute&&(i=i.data);const n=e.get(i);n&&(t.deleteBuffer(n.buffer),e.delete(i))},update:function(i,n){if(i.isInterleavedBufferAttribute&&(i=i.data),i.isGLBufferAttribute){const t=e.get(i);return void((!t||t.version<i.version)&&e.set(i,{buffer:i.buffer,type:i.type,bytesPerElement:i.elementSize,version:i.version}))}const s=e.get(i);if(void 0===s)e.set(i,function(e,i){const n=e.array,s=e.usage,r=n.byteLength,a=t.createBuffer();let o;if(t.bindBuffer(i,a),t.bufferData(i,n,s),e.onUploadCallback(),n instanceof Float32Array)o=t.FLOAT;else if(n instanceof Uint16Array)o=e.isFloat16BufferAttribute?t.HALF_FLOAT:t.UNSIGNED_SHORT;else if(n instanceof Int16Array)o=t.SHORT;else if(n instanceof Uint32Array)o=t.UNSIGNED_INT;else if(n instanceof Int32Array)o=t.INT;else if(n instanceof Int8Array)o=t.BYTE;else if(n instanceof Uint8Array)o=t.UNSIGNED_BYTE;else{if(!(n instanceof Uint8ClampedArray))throw new Error("THREE.WebGLAttributes: Unsupported buffer data format: "+n);o=t.UNSIGNED_BYTE}return{buffer:a,type:o,bytesPerElement:n.BYTES_PER_ELEMENT,version:e.version,size:r}}(i,n));else if(s.version<i.version){if(s.size!==i.array.byteLength)throw new Error("THREE.WebGLAttributes: The size of the buffer attribute's array buffer does not match the original size. Resizing buffer attributes is not supported.");!function(e,i,n){const s=i.array,r=i.updateRanges;if(t.bindBuffer(n,e),0===r.length)t.bufferSubData(n,0,s);else{r.sort(((t,e)=>t.start-e.start));let e=0;for(let t=1;t<r.length;t++){const i=r[e],n=r[t];n.start<=i.start+i.count+1?i.count=Math.max(i.count,n.start+n.count-i.start):(++e,r[e]=n)}r.length=e+1;for(let e=0,i=r.length;e<i;e++){const i=r[e];t.bufferSubData(n,i.start*s.BYTES_PER_ELEMENT,s,i.start,i.count)}i.clearUpdateRanges()}i.onUploadCallback()}(s.buffer,i,n),s.version=i.version}}}}"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("register",{detail:{revision:S}})),"undefined"!=typeof window&&(window.__THREE__?console.warn("WARNING: Multiple instances of Three.js being imported."):window.__THREE__=S);const Al={alphahash_fragment:"#ifdef USE_ALPHAHASH\n\tif ( diffuseColor.a < getAlphaHashThreshold( vPosition ) ) discard;\n#endif",alphahash_pars_fragment:"#ifdef USE_ALPHAHASH\n\tconst float ALPHA_HASH_SCALE = 0.05;\n\tfloat hash2D( vec2 value ) {\n\t\treturn fract( 1.0e4 * sin( 17.0 * value.x + 0.1 * value.y ) * ( 0.1 + abs( sin( 13.0 * value.y + value.x ) ) ) );\n\t}\n\tfloat hash3D( vec3 value ) {\n\t\treturn hash2D( vec2( hash2D( value.xy ), value.z ) );\n\t}\n\tfloat getAlphaHashThreshold( vec3 position ) {\n\t\tfloat maxDeriv = max(\n\t\t\tlength( dFdx( position.xyz ) ),\n\t\t\tlength( dFdy( position.xyz ) )\n\t\t);\n\t\tfloat pixScale = 1.0 / ( ALPHA_HASH_SCALE * maxDeriv );\n\t\tvec2 pixScales = vec2(\n\t\t\texp2( floor( log2( pixScale ) ) ),\n\t\t\texp2( ceil( log2( pixScale ) ) )\n\t\t);\n\t\tvec2 alpha = vec2(\n\t\t\thash3D( floor( pixScales.x * position.xyz ) ),\n\t\t\thash3D( floor( pixScales.y * position.xyz ) )\n\t\t);\n\t\tfloat lerpFactor = fract( log2( pixScale ) );\n\t\tfloat x = ( 1.0 - lerpFactor ) * alpha.x + lerpFactor * alpha.y;\n\t\tfloat a = min( lerpFactor, 1.0 - lerpFactor );\n\t\tvec3 cases = vec3(\n\t\t\tx * x / ( 2.0 * a * ( 1.0 - a ) ),\n\t\t\t( x - 0.5 * a ) / ( 1.0 - a ),\n\t\t\t1.0 - ( ( 1.0 - x ) * ( 1.0 - x ) / ( 2.0 * a * ( 1.0 - a ) ) )\n\t\t);\n\t\tfloat threshold = ( x < ( 1.0 - a ) )\n\t\t\t? ( ( x < a ) ? cases.x : cases.y )\n\t\t\t: cases.z;\n\t\treturn clamp( threshold , 1.0e-6, 1.0 );\n\t}\n#endif",alphamap_fragment:"#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vAlphaMapUv ).g;\n#endif",alphamap_pars_fragment:"#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif",alphatest_fragment:"#ifdef USE_ALPHATEST\n\t#ifdef ALPHA_TO_COVERAGE\n\tdiffuseColor.a = smoothstep( alphaTest, alphaTest + fwidth( diffuseColor.a ), diffuseColor.a );\n\tif ( diffuseColor.a == 0.0 ) discard;\n\t#else\n\tif ( diffuseColor.a < alphaTest ) discard;\n\t#endif\n#endif",alphatest_pars_fragment:"#ifdef USE_ALPHATEST\n\tuniform float alphaTest;\n#endif",aomap_fragment:"#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vAoMapUv ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_CLEARCOAT ) \n\t\tclearcoatSpecularIndirect *= ambientOcclusion;\n\t#endif\n\t#if defined( USE_SHEEN ) \n\t\tsheenSpecularIndirect *= ambientOcclusion;\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( STANDARD )\n\t\tfloat dotNV = saturate( dot( geometryNormal, geometryViewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.roughness );\n\t#endif\n#endif",aomap_pars_fragment:"#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif",batching_pars_vertex:"#ifdef USE_BATCHING\n\t#if ! defined( GL_ANGLE_multi_draw )\n\t#define gl_DrawID _gl_DrawID\n\tuniform int _gl_DrawID;\n\t#endif\n\tuniform highp sampler2D batchingTexture;\n\tuniform highp usampler2D batchingIdTexture;\n\tmat4 getBatchingMatrix( const in float i ) {\n\t\tint size = textureSize( batchingTexture, 0 ).x;\n\t\tint j = int( i ) * 4;\n\t\tint x = j % size;\n\t\tint y = j / size;\n\t\tvec4 v1 = texelFetch( batchingTexture, ivec2( x, y ), 0 );\n\t\tvec4 v2 = texelFetch( batchingTexture, ivec2( x + 1, y ), 0 );\n\t\tvec4 v3 = texelFetch( batchingTexture, ivec2( x + 2, y ), 0 );\n\t\tvec4 v4 = texelFetch( batchingTexture, ivec2( x + 3, y ), 0 );\n\t\treturn mat4( v1, v2, v3, v4 );\n\t}\n\tfloat getIndirectIndex( const in int i ) {\n\t\tint size = textureSize( batchingIdTexture, 0 ).x;\n\t\tint x = i % size;\n\t\tint y = i / size;\n\t\treturn float( texelFetch( batchingIdTexture, ivec2( x, y ), 0 ).r );\n\t}\n#endif\n#ifdef USE_BATCHING_COLOR\n\tuniform sampler2D batchingColorTexture;\n\tvec3 getBatchingColor( const in float i ) {\n\t\tint size = textureSize( batchingColorTexture, 0 ).x;\n\t\tint j = int( i );\n\t\tint x = j % size;\n\t\tint y = j / size;\n\t\treturn texelFetch( batchingColorTexture, ivec2( x, y ), 0 ).rgb;\n\t}\n#endif",batching_vertex:"#ifdef USE_BATCHING\n\tmat4 batchingMatrix = getBatchingMatrix( getIndirectIndex( gl_DrawID ) );\n#endif",begin_vertex:"vec3 transformed = vec3( position );\n#ifdef USE_ALPHAHASH\n\tvPosition = vec3( position );\n#endif",beginnormal_vertex:"vec3 objectNormal = vec3( normal );\n#ifdef USE_TANGENT\n\tvec3 objectTangent = vec3( tangent.xyz );\n#endif",bsdfs:"float G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_BlinnPhong( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( lightDir + viewDir );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat dotVH = saturate( dot( viewDir, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, 1.0, dotVH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n} // validated",iridescence_fragment:"#ifdef USE_IRIDESCENCE\n\tconst mat3 XYZ_TO_REC709 = mat3(\n\t\t 3.2404542, -0.9692660,  0.0556434,\n\t\t-1.5371385,  1.8760108, -0.2040259,\n\t\t-0.4985314,  0.0415560,  1.0572252\n\t);\n\tvec3 Fresnel0ToIor( vec3 fresnel0 ) {\n\t\tvec3 sqrtF0 = sqrt( fresnel0 );\n\t\treturn ( vec3( 1.0 ) + sqrtF0 ) / ( vec3( 1.0 ) - sqrtF0 );\n\t}\n\tvec3 IorToFresnel0( vec3 transmittedIor, float incidentIor ) {\n\t\treturn pow2( ( transmittedIor - vec3( incidentIor ) ) / ( transmittedIor + vec3( incidentIor ) ) );\n\t}\n\tfloat IorToFresnel0( float transmittedIor, float incidentIor ) {\n\t\treturn pow2( ( transmittedIor - incidentIor ) / ( transmittedIor + incidentIor ));\n\t}\n\tvec3 evalSensitivity( float OPD, vec3 shift ) {\n\t\tfloat phase = 2.0 * PI * OPD * 1.0e-9;\n\t\tvec3 val = vec3( 5.4856e-13, 4.4201e-13, 5.2481e-13 );\n\t\tvec3 pos = vec3( 1.6810e+06, 1.7953e+06, 2.2084e+06 );\n\t\tvec3 var = vec3( 4.3278e+09, 9.3046e+09, 6.6121e+09 );\n\t\tvec3 xyz = val * sqrt( 2.0 * PI * var ) * cos( pos * phase + shift ) * exp( - pow2( phase ) * var );\n\t\txyz.x += 9.7470e-14 * sqrt( 2.0 * PI * 4.5282e+09 ) * cos( 2.2399e+06 * phase + shift[ 0 ] ) * exp( - 4.5282e+09 * pow2( phase ) );\n\t\txyz /= 1.0685e-7;\n\t\tvec3 rgb = XYZ_TO_REC709 * xyz;\n\t\treturn rgb;\n\t}\n\tvec3 evalIridescence( float outsideIOR, float eta2, float cosTheta1, float thinFilmThickness, vec3 baseF0 ) {\n\t\tvec3 I;\n\t\tfloat iridescenceIOR = mix( outsideIOR, eta2, smoothstep( 0.0, 0.03, thinFilmThickness ) );\n\t\tfloat sinTheta2Sq = pow2( outsideIOR / iridescenceIOR ) * ( 1.0 - pow2( cosTheta1 ) );\n\t\tfloat cosTheta2Sq = 1.0 - sinTheta2Sq;\n\t\tif ( cosTheta2Sq < 0.0 ) {\n\t\t\treturn vec3( 1.0 );\n\t\t}\n\t\tfloat cosTheta2 = sqrt( cosTheta2Sq );\n\t\tfloat R0 = IorToFresnel0( iridescenceIOR, outsideIOR );\n\t\tfloat R12 = F_Schlick( R0, 1.0, cosTheta1 );\n\t\tfloat T121 = 1.0 - R12;\n\t\tfloat phi12 = 0.0;\n\t\tif ( iridescenceIOR < outsideIOR ) phi12 = PI;\n\t\tfloat phi21 = PI - phi12;\n\t\tvec3 baseIOR = Fresnel0ToIor( clamp( baseF0, 0.0, 0.9999 ) );\t\tvec3 R1 = IorToFresnel0( baseIOR, iridescenceIOR );\n\t\tvec3 R23 = F_Schlick( R1, 1.0, cosTheta2 );\n\t\tvec3 phi23 = vec3( 0.0 );\n\t\tif ( baseIOR[ 0 ] < iridescenceIOR ) phi23[ 0 ] = PI;\n\t\tif ( baseIOR[ 1 ] < iridescenceIOR ) phi23[ 1 ] = PI;\n\t\tif ( baseIOR[ 2 ] < iridescenceIOR ) phi23[ 2 ] = PI;\n\t\tfloat OPD = 2.0 * iridescenceIOR * thinFilmThickness * cosTheta2;\n\t\tvec3 phi = vec3( phi21 ) + phi23;\n\t\tvec3 R123 = clamp( R12 * R23, 1e-5, 0.9999 );\n\t\tvec3 r123 = sqrt( R123 );\n\t\tvec3 Rs = pow2( T121 ) * R23 / ( vec3( 1.0 ) - R123 );\n\t\tvec3 C0 = R12 + Rs;\n\t\tI = C0;\n\t\tvec3 Cm = Rs - T121;\n\t\tfor ( int m = 1; m <= 2; ++ m ) {\n\t\t\tCm *= r123;\n\t\t\tvec3 Sm = 2.0 * evalSensitivity( float( m ) * OPD, float( m ) * phi );\n\t\t\tI += Cm * Sm;\n\t\t}\n\t\treturn max( I, vec3( 0.0 ) );\n\t}\n#endif",bumpmap_pars_fragment:"#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vBumpMapUv );\n\t\tvec2 dSTdy = dFdy( vBumpMapUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vBumpMapUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vBumpMapUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vBumpMapUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy, float faceDirection ) {\n\t\tvec3 vSigmaX = normalize( dFdx( surf_pos.xyz ) );\n\t\tvec3 vSigmaY = normalize( dFdy( surf_pos.xyz ) );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 ) * faceDirection;\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif",clipping_planes_fragment:"#if NUM_CLIPPING_PLANES > 0\n\tvec4 plane;\n\t#ifdef ALPHA_TO_COVERAGE\n\t\tfloat distanceToPlane, distanceGradient;\n\t\tfloat clipOpacity = 1.0;\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n\t\t\tplane = clippingPlanes[ i ];\n\t\t\tdistanceToPlane = - dot( vClipPosition, plane.xyz ) + plane.w;\n\t\t\tdistanceGradient = fwidth( distanceToPlane ) / 2.0;\n\t\t\tclipOpacity *= smoothstep( - distanceGradient, distanceGradient, distanceToPlane );\n\t\t\tif ( clipOpacity == 0.0 ) discard;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\t\tfloat unionClipOpacity = 1.0;\n\t\t\t#pragma unroll_loop_start\n\t\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n\t\t\t\tplane = clippingPlanes[ i ];\n\t\t\t\tdistanceToPlane = - dot( vClipPosition, plane.xyz ) + plane.w;\n\t\t\t\tdistanceGradient = fwidth( distanceToPlane ) / 2.0;\n\t\t\t\tunionClipOpacity *= 1.0 - smoothstep( - distanceGradient, distanceGradient, distanceToPlane );\n\t\t\t}\n\t\t\t#pragma unroll_loop_end\n\t\t\tclipOpacity *= 1.0 - unionClipOpacity;\n\t\t#endif\n\t\tdiffuseColor.a *= clipOpacity;\n\t\tif ( diffuseColor.a == 0.0 ) discard;\n\t#else\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n\t\t\tplane = clippingPlanes[ i ];\n\t\t\tif ( dot( vClipPosition, plane.xyz ) > plane.w ) discard;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\t\tbool clipped = true;\n\t\t\t#pragma unroll_loop_start\n\t\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n\t\t\t\tplane = clippingPlanes[ i ];\n\t\t\t\tclipped = ( dot( vClipPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t\t}\n\t\t\t#pragma unroll_loop_end\n\t\t\tif ( clipped ) discard;\n\t\t#endif\n\t#endif\n#endif",clipping_planes_pars_fragment:"#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif",clipping_planes_pars_vertex:"#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n#endif",clipping_planes_vertex:"#if NUM_CLIPPING_PLANES > 0\n\tvClipPosition = - mvPosition.xyz;\n#endif",color_fragment:"#if defined( USE_COLOR_ALPHA )\n\tdiffuseColor *= vColor;\n#elif defined( USE_COLOR )\n\tdiffuseColor.rgb *= vColor;\n#endif",color_pars_fragment:"#if defined( USE_COLOR_ALPHA )\n\tvarying vec4 vColor;\n#elif defined( USE_COLOR )\n\tvarying vec3 vColor;\n#endif",color_pars_vertex:"#if defined( USE_COLOR_ALPHA )\n\tvarying vec4 vColor;\n#elif defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR ) || defined( USE_BATCHING_COLOR )\n\tvarying vec3 vColor;\n#endif",color_vertex:"#if defined( USE_COLOR_ALPHA )\n\tvColor = vec4( 1.0 );\n#elif defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR ) || defined( USE_BATCHING_COLOR )\n\tvColor = vec3( 1.0 );\n#endif\n#ifdef USE_COLOR\n\tvColor *= color;\n#endif\n#ifdef USE_INSTANCING_COLOR\n\tvColor.xyz *= instanceColor.xyz;\n#endif\n#ifdef USE_BATCHING_COLOR\n\tvec3 batchingColor = getBatchingColor( getIndirectIndex( gl_DrawID ) );\n\tvColor.xyz *= batchingColor.xyz;\n#endif",common:"#define PI 3.141592653589793\n#define PI2 6.283185307179586\n#define PI_HALF 1.5707963267948966\n#define RECIPROCAL_PI 0.3183098861837907\n#define RECIPROCAL_PI2 0.15915494309189535\n#define EPSILON 1e-6\n#ifndef saturate\n#define saturate( a ) clamp( a, 0.0, 1.0 )\n#endif\n#define whiteComplement( a ) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nvec3 pow2( const in vec3 x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat max3( const in vec3 v ) { return max( max( v.x, v.y ), v.z ); }\nfloat average( const in vec3 v ) { return dot( v, vec3( 0.3333333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract( sin( sn ) * c );\n}\n#ifdef HIGH_PRECISION\n\tfloat precisionSafeLength( vec3 v ) { return length( v ); }\n#else\n\tfloat precisionSafeLength( vec3 v ) {\n\t\tfloat maxComponent = max3( abs( v ) );\n\t\treturn length( v / maxComponent ) * maxComponent;\n\t}\n#endif\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\n#ifdef USE_ALPHAHASH\n\tvarying vec3 vPosition;\n#endif\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nbool isPerspectiveMatrix( mat4 m ) {\n\treturn m[ 2 ][ 3 ] == - 1.0;\n}\nvec2 equirectUv( in vec3 dir ) {\n\tfloat u = atan( dir.z, dir.x ) * RECIPROCAL_PI2 + 0.5;\n\tfloat v = asin( clamp( dir.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\treturn vec2( u, v );\n}\nvec3 BRDF_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 f0, const in float f90, const in float dotVH ) {\n\tfloat fresnel = exp2( ( - 5.55473 * dotVH - 6.98316 ) * dotVH );\n\treturn f0 * ( 1.0 - fresnel ) + ( f90 * fresnel );\n}\nfloat F_Schlick( const in float f0, const in float f90, const in float dotVH ) {\n\tfloat fresnel = exp2( ( - 5.55473 * dotVH - 6.98316 ) * dotVH );\n\treturn f0 * ( 1.0 - fresnel ) + ( f90 * fresnel );\n} // validated",cube_uv_reflection_fragment:"#ifdef ENVMAP_TYPE_CUBE_UV\n\t#define cubeUV_minMipLevel 4.0\n\t#define cubeUV_minTileSize 16.0\n\tfloat getFace( vec3 direction ) {\n\t\tvec3 absDirection = abs( direction );\n\t\tfloat face = - 1.0;\n\t\tif ( absDirection.x > absDirection.z ) {\n\t\t\tif ( absDirection.x > absDirection.y )\n\t\t\t\tface = direction.x > 0.0 ? 0.0 : 3.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t} else {\n\t\t\tif ( absDirection.z > absDirection.y )\n\t\t\t\tface = direction.z > 0.0 ? 2.0 : 5.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t}\n\t\treturn face;\n\t}\n\tvec2 getUV( vec3 direction, float face ) {\n\t\tvec2 uv;\n\t\tif ( face == 0.0 ) {\n\t\t\tuv = vec2( direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 1.0 ) {\n\t\t\tuv = vec2( - direction.x, - direction.z ) / abs( direction.y );\n\t\t} else if ( face == 2.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.y ) / abs( direction.z );\n\t\t} else if ( face == 3.0 ) {\n\t\t\tuv = vec2( - direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 4.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.z ) / abs( direction.y );\n\t\t} else {\n\t\t\tuv = vec2( direction.x, direction.y ) / abs( direction.z );\n\t\t}\n\t\treturn 0.5 * ( uv + 1.0 );\n\t}\n\tvec3 bilinearCubeUV( sampler2D envMap, vec3 direction, float mipInt ) {\n\t\tfloat face = getFace( direction );\n\t\tfloat filterInt = max( cubeUV_minMipLevel - mipInt, 0.0 );\n\t\tmipInt = max( mipInt, cubeUV_minMipLevel );\n\t\tfloat faceSize = exp2( mipInt );\n\t\thighp vec2 uv = getUV( direction, face ) * ( faceSize - 2.0 ) + 1.0;\n\t\tif ( face > 2.0 ) {\n\t\t\tuv.y += faceSize;\n\t\t\tface -= 3.0;\n\t\t}\n\t\tuv.x += face * faceSize;\n\t\tuv.x += filterInt * 3.0 * cubeUV_minTileSize;\n\t\tuv.y += 4.0 * ( exp2( CUBEUV_MAX_MIP ) - faceSize );\n\t\tuv.x *= CUBEUV_TEXEL_WIDTH;\n\t\tuv.y *= CUBEUV_TEXEL_HEIGHT;\n\t\t#ifdef texture2DGradEXT\n\t\t\treturn texture2DGradEXT( envMap, uv, vec2( 0.0 ), vec2( 0.0 ) ).rgb;\n\t\t#else\n\t\t\treturn texture2D( envMap, uv ).rgb;\n\t\t#endif\n\t}\n\t#define cubeUV_r0 1.0\n\t#define cubeUV_m0 - 2.0\n\t#define cubeUV_r1 0.8\n\t#define cubeUV_m1 - 1.0\n\t#define cubeUV_r4 0.4\n\t#define cubeUV_m4 2.0\n\t#define cubeUV_r5 0.305\n\t#define cubeUV_m5 3.0\n\t#define cubeUV_r6 0.21\n\t#define cubeUV_m6 4.0\n\tfloat roughnessToMip( float roughness ) {\n\t\tfloat mip = 0.0;\n\t\tif ( roughness >= cubeUV_r1 ) {\n\t\t\tmip = ( cubeUV_r0 - roughness ) * ( cubeUV_m1 - cubeUV_m0 ) / ( cubeUV_r0 - cubeUV_r1 ) + cubeUV_m0;\n\t\t} else if ( roughness >= cubeUV_r4 ) {\n\t\t\tmip = ( cubeUV_r1 - roughness ) * ( cubeUV_m4 - cubeUV_m1 ) / ( cubeUV_r1 - cubeUV_r4 ) + cubeUV_m1;\n\t\t} else if ( roughness >= cubeUV_r5 ) {\n\t\t\tmip = ( cubeUV_r4 - roughness ) * ( cubeUV_m5 - cubeUV_m4 ) / ( cubeUV_r4 - cubeUV_r5 ) + cubeUV_m4;\n\t\t} else if ( roughness >= cubeUV_r6 ) {\n\t\t\tmip = ( cubeUV_r5 - roughness ) * ( cubeUV_m6 - cubeUV_m5 ) / ( cubeUV_r5 - cubeUV_r6 ) + cubeUV_m5;\n\t\t} else {\n\t\t\tmip = - 2.0 * log2( 1.16 * roughness );\t\t}\n\t\treturn mip;\n\t}\n\tvec4 textureCubeUV( sampler2D envMap, vec3 sampleDir, float roughness ) {\n\t\tfloat mip = clamp( roughnessToMip( roughness ), cubeUV_m0, CUBEUV_MAX_MIP );\n\t\tfloat mipF = fract( mip );\n\t\tfloat mipInt = floor( mip );\n\t\tvec3 color0 = bilinearCubeUV( envMap, sampleDir, mipInt );\n\t\tif ( mipF == 0.0 ) {\n\t\t\treturn vec4( color0, 1.0 );\n\t\t} else {\n\t\t\tvec3 color1 = bilinearCubeUV( envMap, sampleDir, mipInt + 1.0 );\n\t\t\treturn vec4( mix( color0, color1, mipF ), 1.0 );\n\t\t}\n\t}\n#endif",defaultnormal_vertex:"vec3 transformedNormal = objectNormal;\n#ifdef USE_TANGENT\n\tvec3 transformedTangent = objectTangent;\n#endif\n#ifdef USE_BATCHING\n\tmat3 bm = mat3( batchingMatrix );\n\ttransformedNormal /= vec3( dot( bm[ 0 ], bm[ 0 ] ), dot( bm[ 1 ], bm[ 1 ] ), dot( bm[ 2 ], bm[ 2 ] ) );\n\ttransformedNormal = bm * transformedNormal;\n\t#ifdef USE_TANGENT\n\t\ttransformedTangent = bm * transformedTangent;\n\t#endif\n#endif\n#ifdef USE_INSTANCING\n\tmat3 im = mat3( instanceMatrix );\n\ttransformedNormal /= vec3( dot( im[ 0 ], im[ 0 ] ), dot( im[ 1 ], im[ 1 ] ), dot( im[ 2 ], im[ 2 ] ) );\n\ttransformedNormal = im * transformedNormal;\n\t#ifdef USE_TANGENT\n\t\ttransformedTangent = im * transformedTangent;\n\t#endif\n#endif\ntransformedNormal = normalMatrix * transformedNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n#ifdef USE_TANGENT\n\ttransformedTangent = ( modelViewMatrix * vec4( transformedTangent, 0.0 ) ).xyz;\n\t#ifdef FLIP_SIDED\n\t\ttransformedTangent = - transformedTangent;\n\t#endif\n#endif",displacementmap_pars_vertex:"#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif",displacementmap_vertex:"#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, vDisplacementMapUv ).x * displacementScale + displacementBias );\n#endif",emissivemap_fragment:"#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vEmissiveMapUv );\n\t#ifdef DECODE_VIDEO_TEXTURE_EMISSIVE\n\t\temissiveColor = sRGBTransferEOTF( emissiveColor );\n\t#endif\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif",emissivemap_pars_fragment:"#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif",colorspace_fragment:"gl_FragColor = linearToOutputTexel( gl_FragColor );",colorspace_pars_fragment:"vec4 LinearTransferOETF( in vec4 value ) {\n\treturn value;\n}\nvec4 sRGBTransferEOTF( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.a );\n}\nvec4 sRGBTransferOETF( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.a );\n}",envmap_fragment:"#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvec3 cameraToFrag;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToFrag = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToFrag = normalize( vWorldPosition - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToFrag, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToFrag, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, envMapRotation * vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif",envmap_common_pars_fragment:"#ifdef USE_ENVMAP\n\tuniform float envMapIntensity;\n\tuniform float flipEnvMap;\n\tuniform mat3 envMapRotation;\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\t\n#endif",envmap_pars_fragment:"#ifdef USE_ENVMAP\n\tuniform float reflectivity;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) || defined( LAMBERT )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\tvarying vec3 vWorldPosition;\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif",envmap_pars_vertex:"#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) || defined( LAMBERT )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\t\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif",envmap_physical_pars_fragment:"#ifdef USE_ENVMAP\n\tvec3 getIBLIrradiance( const in vec3 normal ) {\n\t\t#ifdef ENVMAP_TYPE_CUBE_UV\n\t\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, envMapRotation * worldNormal, 1.0 );\n\t\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t\t#else\n\t\t\treturn vec3( 0.0 );\n\t\t#endif\n\t}\n\tvec3 getIBLRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness ) {\n\t\t#ifdef ENVMAP_TYPE_CUBE_UV\n\t\t\tvec3 reflectVec = reflect( - viewDir, normal );\n\t\t\treflectVec = normalize( mix( reflectVec, normal, roughness * roughness) );\n\t\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, envMapRotation * reflectVec, roughness );\n\t\t\treturn envMapColor.rgb * envMapIntensity;\n\t\t#else\n\t\t\treturn vec3( 0.0 );\n\t\t#endif\n\t}\n\t#ifdef USE_ANISOTROPY\n\t\tvec3 getIBLAnisotropyRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness, const in vec3 bitangent, const in float anisotropy ) {\n\t\t\t#ifdef ENVMAP_TYPE_CUBE_UV\n\t\t\t\tvec3 bentNormal = cross( bitangent, viewDir );\n\t\t\t\tbentNormal = normalize( cross( bentNormal, bitangent ) );\n\t\t\t\tbentNormal = normalize( mix( bentNormal, normal, pow2( pow2( 1.0 - anisotropy * ( 1.0 - roughness ) ) ) ) );\n\t\t\t\treturn getIBLRadiance( viewDir, bentNormal, roughness );\n\t\t\t#else\n\t\t\t\treturn vec3( 0.0 );\n\t\t\t#endif\n\t\t}\n\t#endif\n#endif",envmap_vertex:"#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToVertex = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif",fog_vertex:"#ifdef USE_FOG\n\tvFogDepth = - mvPosition.z;\n#endif",fog_pars_vertex:"#ifdef USE_FOG\n\tvarying float vFogDepth;\n#endif",fog_fragment:"#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = 1.0 - exp( - fogDensity * fogDensity * vFogDepth * vFogDepth );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, vFogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif",fog_pars_fragment:"#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float vFogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif",gradientmap_pars_fragment:"#ifdef USE_GRADIENTMAP\n\tuniform sampler2D gradientMap;\n#endif\nvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\tfloat dotNL = dot( normal, lightDirection );\n\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t#ifdef USE_GRADIENTMAP\n\t\treturn vec3( texture2D( gradientMap, coord ).r );\n\t#else\n\t\tvec2 fw = fwidth( coord ) * 0.5;\n\t\treturn mix( vec3( 0.7 ), vec3( 1.0 ), smoothstep( 0.7 - fw.x, 0.7 + fw.x, coord.x ) );\n\t#endif\n}",lightmap_pars_fragment:"#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif",lights_lambert_fragment:"LambertMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularStrength = specularStrength;",lights_lambert_pars_fragment:"varying vec3 vViewPosition;\nstruct LambertMaterial {\n\tvec3 diffuseColor;\n\tfloat specularStrength;\n};\nvoid RE_Direct_Lambert( const in IncidentLight directLight, const in vec3 geometryPosition, const in vec3 geometryNormal, const in vec3 geometryViewDir, const in vec3 geometryClearcoatNormal, const in LambertMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometryNormal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Lambert( const in vec3 irradiance, const in vec3 geometryPosition, const in vec3 geometryNormal, const in vec3 geometryViewDir, const in vec3 geometryClearcoatNormal, const in LambertMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_Lambert\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Lambert",lights_pars_begin:"uniform bool receiveShadow;\nuniform vec3 ambientLightColor;\n#if defined( USE_LIGHT_PROBES )\n\tuniform vec3 lightProbe[ 9 ];\n#endif\nvec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {\n\tfloat x = normal.x, y = normal.y, z = normal.z;\n\tvec3 result = shCoefficients[ 0 ] * 0.886227;\n\tresult += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;\n\tresult += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;\n\tresult += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;\n\tresult += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;\n\tresult += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;\n\tresult += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );\n\tresult += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;\n\tresult += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );\n\treturn result;\n}\nvec3 getLightProbeIrradiance( const in vec3 lightProbe[ 9 ], const in vec3 normal ) {\n\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\tvec3 irradiance = shGetIrradianceAt( worldNormal, lightProbe );\n\treturn irradiance;\n}\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\treturn irradiance;\n}\nfloat getDistanceAttenuation( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\tif ( cutoffDistance > 0.0 ) {\n\t\tdistanceFalloff *= pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t}\n\treturn distanceFalloff;\n}\nfloat getSpotAttenuation( const in float coneCosine, const in float penumbraCosine, const in float angleCosine ) {\n\treturn smoothstep( coneCosine, penumbraCosine, angleCosine );\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalLightInfo( const in DirectionalLight directionalLight, out IncidentLight light ) {\n\t\tlight.color = directionalLight.color;\n\t\tlight.direction = directionalLight.direction;\n\t\tlight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointLightInfo( const in PointLight pointLight, const in vec3 geometryPosition, out IncidentLight light ) {\n\t\tvec3 lVector = pointLight.position - geometryPosition;\n\t\tlight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tlight.color = pointLight.color;\n\t\tlight.color *= getDistanceAttenuation( lightDistance, pointLight.distance, pointLight.decay );\n\t\tlight.visible = ( light.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotLightInfo( const in SpotLight spotLight, const in vec3 geometryPosition, out IncidentLight light ) {\n\t\tvec3 lVector = spotLight.position - geometryPosition;\n\t\tlight.direction = normalize( lVector );\n\t\tfloat angleCos = dot( light.direction, spotLight.direction );\n\t\tfloat spotAttenuation = getSpotAttenuation( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\tif ( spotAttenuation > 0.0 ) {\n\t\t\tfloat lightDistance = length( lVector );\n\t\t\tlight.color = spotLight.color * spotAttenuation;\n\t\t\tlight.color *= getDistanceAttenuation( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tlight.visible = ( light.color != vec3( 0.0 ) );\n\t\t} else {\n\t\t\tlight.color = vec3( 0.0 );\n\t\t\tlight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltc_1;\tuniform sampler2D ltc_2;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in vec3 normal ) {\n\t\tfloat dotNL = dot( normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\treturn irradiance;\n\t}\n#endif",lights_toon_fragment:"ToonMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;",lights_toon_pars_fragment:"varying vec3 vViewPosition;\nstruct ToonMaterial {\n\tvec3 diffuseColor;\n};\nvoid RE_Direct_Toon( const in IncidentLight directLight, const in vec3 geometryPosition, const in vec3 geometryNormal, const in vec3 geometryViewDir, const in vec3 geometryClearcoatNormal, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\tvec3 irradiance = getGradientIrradiance( geometryNormal, directLight.direction ) * directLight.color;\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Toon( const in vec3 irradiance, const in vec3 geometryPosition, const in vec3 geometryNormal, const in vec3 geometryViewDir, const in vec3 geometryClearcoatNormal, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_Toon\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Toon",lights_phong_fragment:"BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;",lights_phong_pars_fragment:"varying vec3 vViewPosition;\nstruct BlinnPhongMaterial {\n\tvec3 diffuseColor;\n\tvec3 specularColor;\n\tfloat specularShininess;\n\tfloat specularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in vec3 geometryPosition, const in vec3 geometryNormal, const in vec3 geometryViewDir, const in vec3 geometryClearcoatNormal, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometryNormal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_BlinnPhong( directLight.direction, geometryViewDir, geometryNormal, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in vec3 geometryPosition, const in vec3 geometryNormal, const in vec3 geometryViewDir, const in vec3 geometryClearcoatNormal, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong",lights_physical_fragment:"PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nvec3 dxy = max( abs( dFdx( nonPerturbedNormal ) ), abs( dFdy( nonPerturbedNormal ) ) );\nfloat geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );\nmaterial.roughness = max( roughnessFactor, 0.0525 );material.roughness += geometryRoughness;\nmaterial.roughness = min( material.roughness, 1.0 );\n#ifdef IOR\n\tmaterial.ior = ior;\n\t#ifdef USE_SPECULAR\n\t\tfloat specularIntensityFactor = specularIntensity;\n\t\tvec3 specularColorFactor = specularColor;\n\t\t#ifdef USE_SPECULAR_COLORMAP\n\t\t\tspecularColorFactor *= texture2D( specularColorMap, vSpecularColorMapUv ).rgb;\n\t\t#endif\n\t\t#ifdef USE_SPECULAR_INTENSITYMAP\n\t\t\tspecularIntensityFactor *= texture2D( specularIntensityMap, vSpecularIntensityMapUv ).a;\n\t\t#endif\n\t\tmaterial.specularF90 = mix( specularIntensityFactor, 1.0, metalnessFactor );\n\t#else\n\t\tfloat specularIntensityFactor = 1.0;\n\t\tvec3 specularColorFactor = vec3( 1.0 );\n\t\tmaterial.specularF90 = 1.0;\n\t#endif\n\tmaterial.specularColor = mix( min( pow2( ( material.ior - 1.0 ) / ( material.ior + 1.0 ) ) * specularColorFactor, vec3( 1.0 ) ) * specularIntensityFactor, diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( 0.04 ), diffuseColor.rgb, metalnessFactor );\n\tmaterial.specularF90 = 1.0;\n#endif\n#ifdef USE_CLEARCOAT\n\tmaterial.clearcoat = clearcoat;\n\tmaterial.clearcoatRoughness = clearcoatRoughness;\n\tmaterial.clearcoatF0 = vec3( 0.04 );\n\tmaterial.clearcoatF90 = 1.0;\n\t#ifdef USE_CLEARCOATMAP\n\t\tmaterial.clearcoat *= texture2D( clearcoatMap, vClearcoatMapUv ).x;\n\t#endif\n\t#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\t\tmaterial.clearcoatRoughness *= texture2D( clearcoatRoughnessMap, vClearcoatRoughnessMapUv ).y;\n\t#endif\n\tmaterial.clearcoat = saturate( material.clearcoat );\tmaterial.clearcoatRoughness = max( material.clearcoatRoughness, 0.0525 );\n\tmaterial.clearcoatRoughness += geometryRoughness;\n\tmaterial.clearcoatRoughness = min( material.clearcoatRoughness, 1.0 );\n#endif\n#ifdef USE_DISPERSION\n\tmaterial.dispersion = dispersion;\n#endif\n#ifdef USE_IRIDESCENCE\n\tmaterial.iridescence = iridescence;\n\tmaterial.iridescenceIOR = iridescenceIOR;\n\t#ifdef USE_IRIDESCENCEMAP\n\t\tmaterial.iridescence *= texture2D( iridescenceMap, vIridescenceMapUv ).r;\n\t#endif\n\t#ifdef USE_IRIDESCENCE_THICKNESSMAP\n\t\tmaterial.iridescenceThickness = (iridescenceThicknessMaximum - iridescenceThicknessMinimum) * texture2D( iridescenceThicknessMap, vIridescenceThicknessMapUv ).g + iridescenceThicknessMinimum;\n\t#else\n\t\tmaterial.iridescenceThickness = iridescenceThicknessMaximum;\n\t#endif\n#endif\n#ifdef USE_SHEEN\n\tmaterial.sheenColor = sheenColor;\n\t#ifdef USE_SHEEN_COLORMAP\n\t\tmaterial.sheenColor *= texture2D( sheenColorMap, vSheenColorMapUv ).rgb;\n\t#endif\n\tmaterial.sheenRoughness = clamp( sheenRoughness, 0.07, 1.0 );\n\t#ifdef USE_SHEEN_ROUGHNESSMAP\n\t\tmaterial.sheenRoughness *= texture2D( sheenRoughnessMap, vSheenRoughnessMapUv ).a;\n\t#endif\n#endif\n#ifdef USE_ANISOTROPY\n\t#ifdef USE_ANISOTROPYMAP\n\t\tmat2 anisotropyMat = mat2( anisotropyVector.x, anisotropyVector.y, - anisotropyVector.y, anisotropyVector.x );\n\t\tvec3 anisotropyPolar = texture2D( anisotropyMap, vAnisotropyMapUv ).rgb;\n\t\tvec2 anisotropyV = anisotropyMat * normalize( 2.0 * anisotropyPolar.rg - vec2( 1.0 ) ) * anisotropyPolar.b;\n\t#else\n\t\tvec2 anisotropyV = anisotropyVector;\n\t#endif\n\tmaterial.anisotropy = length( anisotropyV );\n\tif( material.anisotropy == 0.0 ) {\n\t\tanisotropyV = vec2( 1.0, 0.0 );\n\t} else {\n\t\tanisotropyV /= material.anisotropy;\n\t\tmaterial.anisotropy = saturate( material.anisotropy );\n\t}\n\tmaterial.alphaT = mix( pow2( material.roughness ), 1.0, pow2( material.anisotropy ) );\n\tmaterial.anisotropyT = tbn[ 0 ] * anisotropyV.x + tbn[ 1 ] * anisotropyV.y;\n\tmaterial.anisotropyB = tbn[ 1 ] * anisotropyV.x - tbn[ 0 ] * anisotropyV.y;\n#endif",lights_physical_pars_fragment:"struct PhysicalMaterial {\n\tvec3 diffuseColor;\n\tfloat roughness;\n\tvec3 specularColor;\n\tfloat specularF90;\n\tfloat dispersion;\n\t#ifdef USE_CLEARCOAT\n\t\tfloat clearcoat;\n\t\tfloat clearcoatRoughness;\n\t\tvec3 clearcoatF0;\n\t\tfloat clearcoatF90;\n\t#endif\n\t#ifdef USE_IRIDESCENCE\n\t\tfloat iridescence;\n\t\tfloat iridescenceIOR;\n\t\tfloat iridescenceThickness;\n\t\tvec3 iridescenceFresnel;\n\t\tvec3 iridescenceF0;\n\t#endif\n\t#ifdef USE_SHEEN\n\t\tvec3 sheenColor;\n\t\tfloat sheenRoughness;\n\t#endif\n\t#ifdef IOR\n\t\tfloat ior;\n\t#endif\n\t#ifdef USE_TRANSMISSION\n\t\tfloat transmission;\n\t\tfloat transmissionAlpha;\n\t\tfloat thickness;\n\t\tfloat attenuationDistance;\n\t\tvec3 attenuationColor;\n\t#endif\n\t#ifdef USE_ANISOTROPY\n\t\tfloat anisotropy;\n\t\tfloat alphaT;\n\t\tvec3 anisotropyT;\n\t\tvec3 anisotropyB;\n\t#endif\n};\nvec3 clearcoatSpecularDirect = vec3( 0.0 );\nvec3 clearcoatSpecularIndirect = vec3( 0.0 );\nvec3 sheenSpecularDirect = vec3( 0.0 );\nvec3 sheenSpecularIndirect = vec3(0.0 );\nvec3 Schlick_to_F0( const in vec3 f, const in float f90, const in float dotVH ) {\n    float x = clamp( 1.0 - dotVH, 0.0, 1.0 );\n    float x2 = x * x;\n    float x5 = clamp( x * x2 * x2, 0.0, 0.9999 );\n    return ( f - vec3( f90 ) * x5 ) / ( 1.0 - x5 );\n}\nfloat V_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\n#ifdef USE_ANISOTROPY\n\tfloat V_GGX_SmithCorrelated_Anisotropic( const in float alphaT, const in float alphaB, const in float dotTV, const in float dotBV, const in float dotTL, const in float dotBL, const in float dotNV, const in float dotNL ) {\n\t\tfloat gv = dotNL * length( vec3( alphaT * dotTV, alphaB * dotBV, dotNV ) );\n\t\tfloat gl = dotNV * length( vec3( alphaT * dotTL, alphaB * dotBL, dotNL ) );\n\t\tfloat v = 0.5 / ( gv + gl );\n\t\treturn saturate(v);\n\t}\n\tfloat D_GGX_Anisotropic( const in float alphaT, const in float alphaB, const in float dotNH, const in float dotTH, const in float dotBH ) {\n\t\tfloat a2 = alphaT * alphaB;\n\t\thighp vec3 v = vec3( alphaB * dotTH, alphaT * dotBH, a2 * dotNH );\n\t\thighp float v2 = dot( v, v );\n\t\tfloat w2 = a2 / v2;\n\t\treturn RECIPROCAL_PI * a2 * pow2 ( w2 );\n\t}\n#endif\n#ifdef USE_CLEARCOAT\n\tvec3 BRDF_GGX_Clearcoat( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, const in PhysicalMaterial material) {\n\t\tvec3 f0 = material.clearcoatF0;\n\t\tfloat f90 = material.clearcoatF90;\n\t\tfloat roughness = material.clearcoatRoughness;\n\t\tfloat alpha = pow2( roughness );\n\t\tvec3 halfDir = normalize( lightDir + viewDir );\n\t\tfloat dotNL = saturate( dot( normal, lightDir ) );\n\t\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\t\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\t\tfloat dotVH = saturate( dot( viewDir, halfDir ) );\n\t\tvec3 F = F_Schlick( f0, f90, dotVH );\n\t\tfloat V = V_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\t\tfloat D = D_GGX( alpha, dotNH );\n\t\treturn F * ( V * D );\n\t}\n#endif\nvec3 BRDF_GGX( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, const in PhysicalMaterial material ) {\n\tvec3 f0 = material.specularColor;\n\tfloat f90 = material.specularF90;\n\tfloat roughness = material.roughness;\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( lightDir + viewDir );\n\tfloat dotNL = saturate( dot( normal, lightDir ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat dotVH = saturate( dot( viewDir, halfDir ) );\n\tvec3 F = F_Schlick( f0, f90, dotVH );\n\t#ifdef USE_IRIDESCENCE\n\t\tF = mix( F, material.iridescenceFresnel, material.iridescence );\n\t#endif\n\t#ifdef USE_ANISOTROPY\n\t\tfloat dotTL = dot( material.anisotropyT, lightDir );\n\t\tfloat dotTV = dot( material.anisotropyT, viewDir );\n\t\tfloat dotTH = dot( material.anisotropyT, halfDir );\n\t\tfloat dotBL = dot( material.anisotropyB, lightDir );\n\t\tfloat dotBV = dot( material.anisotropyB, viewDir );\n\t\tfloat dotBH = dot( material.anisotropyB, halfDir );\n\t\tfloat V = V_GGX_SmithCorrelated_Anisotropic( material.alphaT, alpha, dotTV, dotBV, dotTL, dotBL, dotNV, dotNL );\n\t\tfloat D = D_GGX_Anisotropic( material.alphaT, alpha, dotNH, dotTH, dotBH );\n\t#else\n\t\tfloat V = V_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\t\tfloat D = D_GGX( alpha, dotNH );\n\t#endif\n\treturn F * ( V * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS = 0.5 / LUT_SIZE;\n\tfloat dotNV = saturate( dot( N, V ) );\n\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\n\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\n\treturn vec3( result );\n}\n#if defined( USE_SHEEN )\nfloat D_Charlie( float roughness, float dotNH ) {\n\tfloat alpha = pow2( roughness );\n\tfloat invAlpha = 1.0 / alpha;\n\tfloat cos2h = dotNH * dotNH;\n\tfloat sin2h = max( 1.0 - cos2h, 0.0078125 );\n\treturn ( 2.0 + invAlpha ) * pow( sin2h, invAlpha * 0.5 ) / ( 2.0 * PI );\n}\nfloat V_Neubelt( float dotNV, float dotNL ) {\n\treturn saturate( 1.0 / ( 4.0 * ( dotNL + dotNV - dotNL * dotNV ) ) );\n}\nvec3 BRDF_Sheen( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, vec3 sheenColor, const in float sheenRoughness ) {\n\tvec3 halfDir = normalize( lightDir + viewDir );\n\tfloat dotNL = saturate( dot( normal, lightDir ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat D = D_Charlie( sheenRoughness, dotNH );\n\tfloat V = V_Neubelt( dotNV, dotNL );\n\treturn sheenColor * ( D * V );\n}\n#endif\nfloat IBLSheenBRDF( const in vec3 normal, const in vec3 viewDir, const in float roughness ) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat r2 = roughness * roughness;\n\tfloat a = roughness < 0.25 ? -339.2 * r2 + 161.4 * roughness - 25.9 : -8.48 * r2 + 14.3 * roughness - 9.95;\n\tfloat b = roughness < 0.25 ? 44.0 * r2 - 23.7 * roughness + 3.26 : 1.97 * r2 - 3.27 * roughness + 0.72;\n\tfloat DG = exp( a * dotNV + b ) + ( roughness < 0.25 ? 0.0 : 0.1 * ( roughness - 0.25 ) );\n\treturn saturate( DG * RECIPROCAL_PI );\n}\nvec2 DFGApprox( const in vec3 normal, const in vec3 viewDir, const in float roughness ) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\tvec2 fab = vec2( - 1.04, 1.04 ) * a004 + r.zw;\n\treturn fab;\n}\nvec3 EnvironmentBRDF( const in vec3 normal, const in vec3 viewDir, const in vec3 specularColor, const in float specularF90, const in float roughness ) {\n\tvec2 fab = DFGApprox( normal, viewDir, roughness );\n\treturn specularColor * fab.x + specularF90 * fab.y;\n}\n#ifdef USE_IRIDESCENCE\nvoid computeMultiscatteringIridescence( const in vec3 normal, const in vec3 viewDir, const in vec3 specularColor, const in float specularF90, const in float iridescence, const in vec3 iridescenceF0, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n#else\nvoid computeMultiscattering( const in vec3 normal, const in vec3 viewDir, const in vec3 specularColor, const in float specularF90, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n#endif\n\tvec2 fab = DFGApprox( normal, viewDir, roughness );\n\t#ifdef USE_IRIDESCENCE\n\t\tvec3 Fr = mix( specularColor, iridescenceF0, iridescence );\n\t#else\n\t\tvec3 Fr = specularColor;\n\t#endif\n\tvec3 FssEss = Fr * fab.x + specularF90 * fab.y;\n\tfloat Ess = fab.x + fab.y;\n\tfloat Ems = 1.0 - Ess;\n\tvec3 Favg = Fr + ( 1.0 - Fr ) * 0.047619;\tvec3 Fms = FssEss * Favg / ( 1.0 - Ems * Favg );\n\tsingleScatter += FssEss;\n\tmultiScatter += Fms * Ems;\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in vec3 geometryPosition, const in vec3 geometryNormal, const in vec3 geometryViewDir, const in vec3 geometryClearcoatNormal, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometryNormal;\n\t\tvec3 viewDir = geometryViewDir;\n\t\tvec3 position = geometryPosition;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.roughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos + halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos - halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos - halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos + halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tvec4 t1 = texture2D( ltc_1, uv );\n\t\tvec4 t2 = texture2D( ltc_2, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3( t1.x, 0, t1.y ),\n\t\t\tvec3(    0, 1,    0 ),\n\t\t\tvec3( t1.z, 0, t1.w )\n\t\t);\n\t\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\n\t\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in vec3 geometryPosition, const in vec3 geometryNormal, const in vec3 geometryViewDir, const in vec3 geometryClearcoatNormal, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometryNormal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifdef USE_CLEARCOAT\n\t\tfloat dotNLcc = saturate( dot( geometryClearcoatNormal, directLight.direction ) );\n\t\tvec3 ccIrradiance = dotNLcc * directLight.color;\n\t\tclearcoatSpecularDirect += ccIrradiance * BRDF_GGX_Clearcoat( directLight.direction, geometryViewDir, geometryClearcoatNormal, material );\n\t#endif\n\t#ifdef USE_SHEEN\n\t\tsheenSpecularDirect += irradiance * BRDF_Sheen( directLight.direction, geometryViewDir, geometryNormal, material.sheenColor, material.sheenRoughness );\n\t#endif\n\treflectedLight.directSpecular += irradiance * BRDF_GGX( directLight.direction, geometryViewDir, geometryNormal, material );\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in vec3 geometryPosition, const in vec3 geometryNormal, const in vec3 geometryViewDir, const in vec3 geometryClearcoatNormal, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 irradiance, const in vec3 clearcoatRadiance, const in vec3 geometryPosition, const in vec3 geometryNormal, const in vec3 geometryViewDir, const in vec3 geometryClearcoatNormal, const in PhysicalMaterial material, inout ReflectedLight reflectedLight) {\n\t#ifdef USE_CLEARCOAT\n\t\tclearcoatSpecularIndirect += clearcoatRadiance * EnvironmentBRDF( geometryClearcoatNormal, geometryViewDir, material.clearcoatF0, material.clearcoatF90, material.clearcoatRoughness );\n\t#endif\n\t#ifdef USE_SHEEN\n\t\tsheenSpecularIndirect += irradiance * material.sheenColor * IBLSheenBRDF( geometryNormal, geometryViewDir, material.sheenRoughness );\n\t#endif\n\tvec3 singleScattering = vec3( 0.0 );\n\tvec3 multiScattering = vec3( 0.0 );\n\tvec3 cosineWeightedIrradiance = irradiance * RECIPROCAL_PI;\n\t#ifdef USE_IRIDESCENCE\n\t\tcomputeMultiscatteringIridescence( geometryNormal, geometryViewDir, material.specularColor, material.specularF90, material.iridescence, material.iridescenceFresnel, material.roughness, singleScattering, multiScattering );\n\t#else\n\t\tcomputeMultiscattering( geometryNormal, geometryViewDir, material.specularColor, material.specularF90, material.roughness, singleScattering, multiScattering );\n\t#endif\n\tvec3 totalScattering = singleScattering + multiScattering;\n\tvec3 diffuse = material.diffuseColor * ( 1.0 - max( max( totalScattering.r, totalScattering.g ), totalScattering.b ) );\n\treflectedLight.indirectSpecular += radiance * singleScattering;\n\treflectedLight.indirectSpecular += multiScattering * cosineWeightedIrradiance;\n\treflectedLight.indirectDiffuse += diffuse * cosineWeightedIrradiance;\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}",lights_fragment_begin:"\nvec3 geometryPosition = - vViewPosition;\nvec3 geometryNormal = normal;\nvec3 geometryViewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( vViewPosition );\nvec3 geometryClearcoatNormal = vec3( 0.0 );\n#ifdef USE_CLEARCOAT\n\tgeometryClearcoatNormal = clearcoatNormal;\n#endif\n#ifdef USE_IRIDESCENCE\n\tfloat dotNVi = saturate( dot( normal, geometryViewDir ) );\n\tif ( material.iridescenceThickness == 0.0 ) {\n\t\tmaterial.iridescence = 0.0;\n\t} else {\n\t\tmaterial.iridescence = saturate( material.iridescence );\n\t}\n\tif ( material.iridescence > 0.0 ) {\n\t\tmaterial.iridescenceFresnel = evalIridescence( 1.0, material.iridescenceIOR, dotNVi, material.iridescenceThickness, material.specularColor );\n\t\tmaterial.iridescenceF0 = Schlick_to_F0( material.iridescenceFresnel, 1.0, dotNVi );\n\t}\n#endif\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointLightInfo( pointLight, geometryPosition, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_POINT_LIGHT_SHADOWS )\n\t\tpointLightShadow = pointLightShadows[ i ];\n\t\tdirectLight.color *= ( directLight.visible && receiveShadow ) ? getPointShadow( pointShadowMap[ i ], pointLightShadow.shadowMapSize, pointLightShadow.shadowIntensity, pointLightShadow.shadowBias, pointLightShadow.shadowRadius, vPointShadowCoord[ i ], pointLightShadow.shadowCameraNear, pointLightShadow.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometryPosition, geometryNormal, geometryViewDir, geometryClearcoatNormal, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\tvec4 spotColor;\n\tvec3 spotLightCoord;\n\tbool inSpotLightMap;\n\t#if defined( USE_SHADOWMAP ) && NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotLightInfo( spotLight, geometryPosition, directLight );\n\t\t#if ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS_WITH_MAPS )\n\t\t#define SPOT_LIGHT_MAP_INDEX UNROLLED_LOOP_INDEX\n\t\t#elif ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\t#define SPOT_LIGHT_MAP_INDEX NUM_SPOT_LIGHT_MAPS\n\t\t#else\n\t\t#define SPOT_LIGHT_MAP_INDEX ( UNROLLED_LOOP_INDEX - NUM_SPOT_LIGHT_SHADOWS + NUM_SPOT_LIGHT_SHADOWS_WITH_MAPS )\n\t\t#endif\n\t\t#if ( SPOT_LIGHT_MAP_INDEX < NUM_SPOT_LIGHT_MAPS )\n\t\t\tspotLightCoord = vSpotLightCoord[ i ].xyz / vSpotLightCoord[ i ].w;\n\t\t\tinSpotLightMap = all( lessThan( abs( spotLightCoord * 2. - 1. ), vec3( 1.0 ) ) );\n\t\t\tspotColor = texture2D( spotLightMap[ SPOT_LIGHT_MAP_INDEX ], spotLightCoord.xy );\n\t\t\tdirectLight.color = inSpotLightMap ? directLight.color * spotColor.rgb : directLight.color;\n\t\t#endif\n\t\t#undef SPOT_LIGHT_MAP_INDEX\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\tspotLightShadow = spotLightShadows[ i ];\n\t\tdirectLight.color *= ( directLight.visible && receiveShadow ) ? getShadow( spotShadowMap[ i ], spotLightShadow.shadowMapSize, spotLightShadow.shadowIntensity, spotLightShadow.shadowBias, spotLightShadow.shadowRadius, vSpotLightCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometryPosition, geometryNormal, geometryViewDir, geometryClearcoatNormal, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalLightInfo( directionalLight, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_DIR_LIGHT_SHADOWS )\n\t\tdirectionalLightShadow = directionalLightShadows[ i ];\n\t\tdirectLight.color *= ( directLight.visible && receiveShadow ) ? getShadow( directionalShadowMap[ i ], directionalLightShadow.shadowMapSize, directionalLightShadow.shadowIntensity, directionalLightShadow.shadowBias, directionalLightShadow.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometryPosition, geometryNormal, geometryViewDir, geometryClearcoatNormal, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometryPosition, geometryNormal, geometryViewDir, geometryClearcoatNormal, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 iblIrradiance = vec3( 0.0 );\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\t#if defined( USE_LIGHT_PROBES )\n\t\tirradiance += getLightProbeIrradiance( lightProbe, geometryNormal );\n\t#endif\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometryNormal );\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n#endif\n#if defined( RE_IndirectSpecular )\n\tvec3 radiance = vec3( 0.0 );\n\tvec3 clearcoatRadiance = vec3( 0.0 );\n#endif",lights_fragment_maps:"#if defined( RE_IndirectDiffuse )\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel = texture2D( lightMap, vLightMapUv );\n\t\tvec3 lightMapIrradiance = lightMapTexel.rgb * lightMapIntensity;\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( STANDARD ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tiblIrradiance += getIBLIrradiance( geometryNormal );\n\t#endif\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\t#ifdef USE_ANISOTROPY\n\t\tradiance += getIBLAnisotropyRadiance( geometryViewDir, geometryNormal, material.roughness, material.anisotropyB, material.anisotropy );\n\t#else\n\t\tradiance += getIBLRadiance( geometryViewDir, geometryNormal, material.roughness );\n\t#endif\n\t#ifdef USE_CLEARCOAT\n\t\tclearcoatRadiance += getIBLRadiance( geometryViewDir, geometryClearcoatNormal, material.clearcoatRoughness );\n\t#endif\n#endif",lights_fragment_end:"#if defined( RE_IndirectDiffuse )\n\tRE_IndirectDiffuse( irradiance, geometryPosition, geometryNormal, geometryViewDir, geometryClearcoatNormal, material, reflectedLight );\n#endif\n#if defined( RE_IndirectSpecular )\n\tRE_IndirectSpecular( radiance, iblIrradiance, clearcoatRadiance, geometryPosition, geometryNormal, geometryViewDir, geometryClearcoatNormal, material, reflectedLight );\n#endif",logdepthbuf_fragment:"#if defined( USE_LOGDEPTHBUF )\n\tgl_FragDepth = vIsPerspective == 0.0 ? gl_FragCoord.z : log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif",logdepthbuf_pars_fragment:"#if defined( USE_LOGDEPTHBUF )\n\tuniform float logDepthBufFC;\n\tvarying float vFragDepth;\n\tvarying float vIsPerspective;\n#endif",logdepthbuf_pars_vertex:"#ifdef USE_LOGDEPTHBUF\n\tvarying float vFragDepth;\n\tvarying float vIsPerspective;\n#endif",logdepthbuf_vertex:"#ifdef USE_LOGDEPTHBUF\n\tvFragDepth = 1.0 + gl_Position.w;\n\tvIsPerspective = float( isPerspectiveMatrix( projectionMatrix ) );\n#endif",map_fragment:"#ifdef USE_MAP\n\tvec4 sampledDiffuseColor = texture2D( map, vMapUv );\n\t#ifdef DECODE_VIDEO_TEXTURE\n\t\tsampledDiffuseColor = sRGBTransferEOTF( sampledDiffuseColor );\n\t#endif\n\tdiffuseColor *= sampledDiffuseColor;\n#endif",map_pars_fragment:"#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif",map_particle_fragment:"#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\t#if defined( USE_POINTS_UV )\n\t\tvec2 uv = vUv;\n\t#else\n\t\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n\t#endif\n#endif\n#ifdef USE_MAP\n\tdiffuseColor *= texture2D( map, uv );\n#endif\n#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, uv ).g;\n#endif",map_particle_pars_fragment:"#if defined( USE_POINTS_UV )\n\tvarying vec2 vUv;\n#else\n\t#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\t\tuniform mat3 uvTransform;\n\t#endif\n#endif\n#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif",metalnessmap_fragment:"float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vMetalnessMapUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif",metalnessmap_pars_fragment:"#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif",morphinstance_vertex:"#ifdef USE_INSTANCING_MORPH\n\tfloat morphTargetInfluences[ MORPHTARGETS_COUNT ];\n\tfloat morphTargetBaseInfluence = texelFetch( morphTexture, ivec2( 0, gl_InstanceID ), 0 ).r;\n\tfor ( int i = 0; i < MORPHTARGETS_COUNT; i ++ ) {\n\t\tmorphTargetInfluences[i] =  texelFetch( morphTexture, ivec2( i + 1, gl_InstanceID ), 0 ).r;\n\t}\n#endif",morphcolor_vertex:"#if defined( USE_MORPHCOLORS )\n\tvColor *= morphTargetBaseInfluence;\n\tfor ( int i = 0; i < MORPHTARGETS_COUNT; i ++ ) {\n\t\t#if defined( USE_COLOR_ALPHA )\n\t\t\tif ( morphTargetInfluences[ i ] != 0.0 ) vColor += getMorph( gl_VertexID, i, 2 ) * morphTargetInfluences[ i ];\n\t\t#elif defined( USE_COLOR )\n\t\t\tif ( morphTargetInfluences[ i ] != 0.0 ) vColor += getMorph( gl_VertexID, i, 2 ).rgb * morphTargetInfluences[ i ];\n\t\t#endif\n\t}\n#endif",morphnormal_vertex:"#ifdef USE_MORPHNORMALS\n\tobjectNormal *= morphTargetBaseInfluence;\n\tfor ( int i = 0; i < MORPHTARGETS_COUNT; i ++ ) {\n\t\tif ( morphTargetInfluences[ i ] != 0.0 ) objectNormal += getMorph( gl_VertexID, i, 1 ).xyz * morphTargetInfluences[ i ];\n\t}\n#endif",morphtarget_pars_vertex:"#ifdef USE_MORPHTARGETS\n\t#ifndef USE_INSTANCING_MORPH\n\t\tuniform float morphTargetBaseInfluence;\n\t\tuniform float morphTargetInfluences[ MORPHTARGETS_COUNT ];\n\t#endif\n\tuniform sampler2DArray morphTargetsTexture;\n\tuniform ivec2 morphTargetsTextureSize;\n\tvec4 getMorph( const in int vertexIndex, const in int morphTargetIndex, const in int offset ) {\n\t\tint texelIndex = vertexIndex * MORPHTARGETS_TEXTURE_STRIDE + offset;\n\t\tint y = texelIndex / morphTargetsTextureSize.x;\n\t\tint x = texelIndex - y * morphTargetsTextureSize.x;\n\t\tivec3 morphUV = ivec3( x, y, morphTargetIndex );\n\t\treturn texelFetch( morphTargetsTexture, morphUV, 0 );\n\t}\n#endif",morphtarget_vertex:"#ifdef USE_MORPHTARGETS\n\ttransformed *= morphTargetBaseInfluence;\n\tfor ( int i = 0; i < MORPHTARGETS_COUNT; i ++ ) {\n\t\tif ( morphTargetInfluences[ i ] != 0.0 ) transformed += getMorph( gl_VertexID, i, 0 ).xyz * morphTargetInfluences[ i ];\n\t}\n#endif",normal_fragment_begin:"float faceDirection = gl_FrontFacing ? 1.0 : - 1.0;\n#ifdef FLAT_SHADED\n\tvec3 fdx = dFdx( vViewPosition );\n\tvec3 fdy = dFdy( vViewPosition );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal *= faceDirection;\n\t#endif\n#endif\n#if defined( USE_NORMALMAP_TANGENTSPACE ) || defined( USE_CLEARCOAT_NORMALMAP ) || defined( USE_ANISOTROPY )\n\t#ifdef USE_TANGENT\n\t\tmat3 tbn = mat3( normalize( vTangent ), normalize( vBitangent ), normal );\n\t#else\n\t\tmat3 tbn = getTangentFrame( - vViewPosition, normal,\n\t\t#if defined( USE_NORMALMAP )\n\t\t\tvNormalMapUv\n\t\t#elif defined( USE_CLEARCOAT_NORMALMAP )\n\t\t\tvClearcoatNormalMapUv\n\t\t#else\n\t\t\tvUv\n\t\t#endif\n\t\t);\n\t#endif\n\t#if defined( DOUBLE_SIDED ) && ! defined( FLAT_SHADED )\n\t\ttbn[0] *= faceDirection;\n\t\ttbn[1] *= faceDirection;\n\t#endif\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\t#ifdef USE_TANGENT\n\t\tmat3 tbn2 = mat3( normalize( vTangent ), normalize( vBitangent ), normal );\n\t#else\n\t\tmat3 tbn2 = getTangentFrame( - vViewPosition, normal, vClearcoatNormalMapUv );\n\t#endif\n\t#if defined( DOUBLE_SIDED ) && ! defined( FLAT_SHADED )\n\t\ttbn2[0] *= faceDirection;\n\t\ttbn2[1] *= faceDirection;\n\t#endif\n#endif\nvec3 nonPerturbedNormal = normal;",normal_fragment_maps:"#ifdef USE_NORMALMAP_OBJECTSPACE\n\tnormal = texture2D( normalMap, vNormalMapUv ).xyz * 2.0 - 1.0;\n\t#ifdef FLIP_SIDED\n\t\tnormal = - normal;\n\t#endif\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\tnormal = normalize( normalMatrix * normal );\n#elif defined( USE_NORMALMAP_TANGENTSPACE )\n\tvec3 mapN = texture2D( normalMap, vNormalMapUv ).xyz * 2.0 - 1.0;\n\tmapN.xy *= normalScale;\n\tnormal = normalize( tbn * mapN );\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( - vViewPosition, normal, dHdxy_fwd(), faceDirection );\n#endif",normal_pars_fragment:"#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif",normal_pars_vertex:"#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif",normal_vertex:"#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif",normalmap_pars_fragment:"#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n#endif\n#ifdef USE_NORMALMAP_OBJECTSPACE\n\tuniform mat3 normalMatrix;\n#endif\n#if ! defined ( USE_TANGENT ) && ( defined ( USE_NORMALMAP_TANGENTSPACE ) || defined ( USE_CLEARCOAT_NORMALMAP ) || defined( USE_ANISOTROPY ) )\n\tmat3 getTangentFrame( vec3 eye_pos, vec3 surf_norm, vec2 uv ) {\n\t\tvec3 q0 = dFdx( eye_pos.xyz );\n\t\tvec3 q1 = dFdy( eye_pos.xyz );\n\t\tvec2 st0 = dFdx( uv.st );\n\t\tvec2 st1 = dFdy( uv.st );\n\t\tvec3 N = surf_norm;\n\t\tvec3 q1perp = cross( q1, N );\n\t\tvec3 q0perp = cross( N, q0 );\n\t\tvec3 T = q1perp * st0.x + q0perp * st1.x;\n\t\tvec3 B = q1perp * st0.y + q0perp * st1.y;\n\t\tfloat det = max( dot( T, T ), dot( B, B ) );\n\t\tfloat scale = ( det == 0.0 ) ? 0.0 : inversesqrt( det );\n\t\treturn mat3( T * scale, B * scale, N );\n\t}\n#endif",clearcoat_normal_fragment_begin:"#ifdef USE_CLEARCOAT\n\tvec3 clearcoatNormal = nonPerturbedNormal;\n#endif",clearcoat_normal_fragment_maps:"#ifdef USE_CLEARCOAT_NORMALMAP\n\tvec3 clearcoatMapN = texture2D( clearcoatNormalMap, vClearcoatNormalMapUv ).xyz * 2.0 - 1.0;\n\tclearcoatMapN.xy *= clearcoatNormalScale;\n\tclearcoatNormal = normalize( tbn2 * clearcoatMapN );\n#endif",clearcoat_pars_fragment:"#ifdef USE_CLEARCOATMAP\n\tuniform sampler2D clearcoatMap;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tuniform sampler2D clearcoatNormalMap;\n\tuniform vec2 clearcoatNormalScale;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tuniform sampler2D clearcoatRoughnessMap;\n#endif",iridescence_pars_fragment:"#ifdef USE_IRIDESCENCEMAP\n\tuniform sampler2D iridescenceMap;\n#endif\n#ifdef USE_IRIDESCENCE_THICKNESSMAP\n\tuniform sampler2D iridescenceThicknessMap;\n#endif",opaque_fragment:"#ifdef OPAQUE\ndiffuseColor.a = 1.0;\n#endif\n#ifdef USE_TRANSMISSION\ndiffuseColor.a *= material.transmissionAlpha;\n#endif\ngl_FragColor = vec4( outgoingLight, diffuseColor.a );",packing:"vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;const float ShiftRight8 = 1. / 256.;\nconst float Inv255 = 1. / 255.;\nconst vec4 PackFactors = vec4( 1.0, 256.0, 256.0 * 256.0, 256.0 * 256.0 * 256.0 );\nconst vec2 UnpackFactors2 = vec2( UnpackDownscale, 1.0 / PackFactors.g );\nconst vec3 UnpackFactors3 = vec3( UnpackDownscale / PackFactors.rg, 1.0 / PackFactors.b );\nconst vec4 UnpackFactors4 = vec4( UnpackDownscale / PackFactors.rgb, 1.0 / PackFactors.a );\nvec4 packDepthToRGBA( const in float v ) {\n\tif( v <= 0.0 )\n\t\treturn vec4( 0., 0., 0., 0. );\n\tif( v >= 1.0 )\n\t\treturn vec4( 1., 1., 1., 1. );\n\tfloat vuf;\n\tfloat af = modf( v * PackFactors.a, vuf );\n\tfloat bf = modf( vuf * ShiftRight8, vuf );\n\tfloat gf = modf( vuf * ShiftRight8, vuf );\n\treturn vec4( vuf * Inv255, gf * PackUpscale, bf * PackUpscale, af );\n}\nvec3 packDepthToRGB( const in float v ) {\n\tif( v <= 0.0 )\n\t\treturn vec3( 0., 0., 0. );\n\tif( v >= 1.0 )\n\t\treturn vec3( 1., 1., 1. );\n\tfloat vuf;\n\tfloat bf = modf( v * PackFactors.b, vuf );\n\tfloat gf = modf( vuf * ShiftRight8, vuf );\n\treturn vec3( vuf * Inv255, gf * PackUpscale, bf );\n}\nvec2 packDepthToRG( const in float v ) {\n\tif( v <= 0.0 )\n\t\treturn vec2( 0., 0. );\n\tif( v >= 1.0 )\n\t\treturn vec2( 1., 1. );\n\tfloat vuf;\n\tfloat gf = modf( v * 256., vuf );\n\treturn vec2( vuf * Inv255, gf );\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors4 );\n}\nfloat unpackRGBToDepth( const in vec3 v ) {\n\treturn dot( v, UnpackFactors3 );\n}\nfloat unpackRGToDepth( const in vec2 v ) {\n\treturn v.r * UnpackFactors2.r + v.g * UnpackFactors2.g;\n}\nvec4 pack2HalfToRGBA( const in vec2 v ) {\n\tvec4 r = vec4( v.x, fract( v.x * 255.0 ), v.y, fract( v.y * 255.0 ) );\n\treturn vec4( r.x - r.y / 255.0, r.y, r.z - r.w / 255.0, r.w );\n}\nvec2 unpackRGBATo2Half( const in vec4 v ) {\n\treturn vec2( v.x + ( v.y / 255.0 ), v.z + ( v.w / 255.0 ) );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float depth, const in float near, const in float far ) {\n\treturn depth * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( ( near + viewZ ) * far ) / ( ( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float depth, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * depth - far );\n}",premultiplied_alpha_fragment:"#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif",project_vertex:"vec4 mvPosition = vec4( transformed, 1.0 );\n#ifdef USE_BATCHING\n\tmvPosition = batchingMatrix * mvPosition;\n#endif\n#ifdef USE_INSTANCING\n\tmvPosition = instanceMatrix * mvPosition;\n#endif\nmvPosition = modelViewMatrix * mvPosition;\ngl_Position = projectionMatrix * mvPosition;",dithering_fragment:"#ifdef DITHERING\n\tgl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif",dithering_pars_fragment:"#ifdef DITHERING\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif",roughnessmap_fragment:"float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vRoughnessMapUv );\n\troughnessFactor *= texelRoughness.g;\n#endif",roughnessmap_pars_fragment:"#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif",shadowmap_pars_fragment:"#if NUM_SPOT_LIGHT_COORDS > 0\n\tvarying vec4 vSpotLightCoord[ NUM_SPOT_LIGHT_COORDS ];\n#endif\n#if NUM_SPOT_LIGHT_MAPS > 0\n\tuniform sampler2D spotLightMap[ NUM_SPOT_LIGHT_MAPS ];\n#endif\n#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowIntensity;\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowIntensity;\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowIntensity;\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tvec2 texture2DDistribution( sampler2D shadow, vec2 uv ) {\n\t\treturn unpackRGBATo2Half( texture2D( shadow, uv ) );\n\t}\n\tfloat VSMShadow (sampler2D shadow, vec2 uv, float compare ){\n\t\tfloat occlusion = 1.0;\n\t\tvec2 distribution = texture2DDistribution( shadow, uv );\n\t\tfloat hard_shadow = step( compare , distribution.x );\n\t\tif (hard_shadow != 1.0 ) {\n\t\t\tfloat distance = compare - distribution.x ;\n\t\t\tfloat variance = max( 0.00000, distribution.y * distribution.y );\n\t\t\tfloat softness_probability = variance / (variance + distance * distance );\t\t\tsoftness_probability = clamp( ( softness_probability - 0.3 ) / ( 0.95 - 0.3 ), 0.0, 1.0 );\t\t\tocclusion = clamp( max( hard_shadow, softness_probability ), 0.0, 1.0 );\n\t\t}\n\t\treturn occlusion;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowIntensity, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbool inFrustum = shadowCoord.x >= 0.0 && shadowCoord.x <= 1.0 && shadowCoord.y >= 0.0 && shadowCoord.y <= 1.0;\n\t\tbool frustumTest = inFrustum && shadowCoord.z <= 1.0;\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tfloat dx2 = dx0 / 2.0;\n\t\t\tfloat dy2 = dy0 / 2.0;\n\t\t\tfloat dx3 = dx1 / 2.0;\n\t\t\tfloat dy3 = dy1 / 2.0;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 17.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx = texelSize.x;\n\t\t\tfloat dy = texelSize.y;\n\t\t\tvec2 uv = shadowCoord.xy;\n\t\t\tvec2 f = fract( uv * shadowMapSize + 0.5 );\n\t\t\tuv -= f * texelSize;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, uv, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( dx, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( 0.0, dy ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + texelSize, shadowCoord.z ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, 0.0 ), shadowCoord.z ),\n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 0.0 ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, dy ), shadowCoord.z ),\n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, dy ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( 0.0, -dy ), shadowCoord.z ),\n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 0.0, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( mix( texture2DCompare( shadowMap, uv + vec2( -dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t mix( texture2DCompare( shadowMap, uv + vec2( -dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t f.y )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_VSM )\n\t\t\tshadow = VSMShadow( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn mix( 1.0, shadow, shadowIntensity );\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowIntensity, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tfloat shadow = 1.0;\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\t\n\t\tfloat lightToPositionLength = length( lightToPosition );\n\t\tif ( lightToPositionLength - shadowCameraFar <= 0.0 && lightToPositionLength - shadowCameraNear >= 0.0 ) {\n\t\t\tfloat dp = ( lightToPositionLength - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\t\tdp += shadowBias;\n\t\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT ) || defined( SHADOWMAP_TYPE_VSM )\n\t\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\t\tshadow = (\n\t\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t\t) * ( 1.0 / 9.0 );\n\t\t\t#else\n\t\t\t\tshadow = texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t\t#endif\n\t\t}\n\t\treturn mix( 1.0, shadow, shadowIntensity );\n\t}\n#endif",shadowmap_pars_vertex:"#if NUM_SPOT_LIGHT_COORDS > 0\n\tuniform mat4 spotLightMatrix[ NUM_SPOT_LIGHT_COORDS ];\n\tvarying vec4 vSpotLightCoord[ NUM_SPOT_LIGHT_COORDS ];\n#endif\n#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowIntensity;\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowIntensity;\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowIntensity;\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n#endif",shadowmap_vertex:"#if ( defined( USE_SHADOWMAP ) && ( NUM_DIR_LIGHT_SHADOWS > 0 || NUM_POINT_LIGHT_SHADOWS > 0 ) ) || ( NUM_SPOT_LIGHT_COORDS > 0 )\n\tvec3 shadowWorldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\tvec4 shadowWorldPosition;\n#endif\n#if defined( USE_SHADOWMAP )\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * directionalLightShadows[ i ].shadowNormalBias, 0 );\n\t\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * shadowWorldPosition;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * pointLightShadows[ i ].shadowNormalBias, 0 );\n\t\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * shadowWorldPosition;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n#endif\n#if NUM_SPOT_LIGHT_COORDS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_COORDS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition;\n\t\t#if ( defined( USE_SHADOWMAP ) && UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\t\tshadowWorldPosition.xyz += shadowWorldNormal * spotLightShadows[ i ].shadowNormalBias;\n\t\t#endif\n\t\tvSpotLightCoord[ i ] = spotLightMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n#endif",shadowmask_pars_fragment:"float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tdirectionalLight = directionalLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowIntensity, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tspotLight = spotLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowIntensity, spotLight.shadowBias, spotLight.shadowRadius, vSpotLightCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tpointLight = pointLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowIntensity, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#endif\n\treturn shadow;\n}",skinbase_vertex:"#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif",skinning_pars_vertex:"#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\tuniform highp sampler2D boneTexture;\n\tmat4 getBoneMatrix( const in float i ) {\n\t\tint size = textureSize( boneTexture, 0 ).x;\n\t\tint j = int( i ) * 4;\n\t\tint x = j % size;\n\t\tint y = j / size;\n\t\tvec4 v1 = texelFetch( boneTexture, ivec2( x, y ), 0 );\n\t\tvec4 v2 = texelFetch( boneTexture, ivec2( x + 1, y ), 0 );\n\t\tvec4 v3 = texelFetch( boneTexture, ivec2( x + 2, y ), 0 );\n\t\tvec4 v4 = texelFetch( boneTexture, ivec2( x + 3, y ), 0 );\n\t\treturn mat4( v1, v2, v3, v4 );\n\t}\n#endif",skinning_vertex:"#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif",skinnormal_vertex:"#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n\t#ifdef USE_TANGENT\n\t\tobjectTangent = vec4( skinMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#endif\n#endif",specularmap_fragment:"float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vSpecularMapUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif",specularmap_pars_fragment:"#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif",tonemapping_fragment:"#if defined( TONE_MAPPING )\n\tgl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif",tonemapping_pars_fragment:"#ifndef saturate\n#define saturate( a ) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn saturate( toneMappingExposure * color );\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\nvec3 CineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\nvec3 RRTAndODTFit( vec3 v ) {\n\tvec3 a = v * ( v + 0.0245786 ) - 0.000090537;\n\tvec3 b = v * ( 0.983729 * v + 0.4329510 ) + 0.238081;\n\treturn a / b;\n}\nvec3 ACESFilmicToneMapping( vec3 color ) {\n\tconst mat3 ACESInputMat = mat3(\n\t\tvec3( 0.59719, 0.07600, 0.02840 ),\t\tvec3( 0.35458, 0.90834, 0.13383 ),\n\t\tvec3( 0.04823, 0.01566, 0.83777 )\n\t);\n\tconst mat3 ACESOutputMat = mat3(\n\t\tvec3(  1.60475, -0.10208, -0.00327 ),\t\tvec3( -0.53108,  1.10813, -0.07276 ),\n\t\tvec3( -0.07367, -0.00605,  1.07602 )\n\t);\n\tcolor *= toneMappingExposure / 0.6;\n\tcolor = ACESInputMat * color;\n\tcolor = RRTAndODTFit( color );\n\tcolor = ACESOutputMat * color;\n\treturn saturate( color );\n}\nconst mat3 LINEAR_REC2020_TO_LINEAR_SRGB = mat3(\n\tvec3( 1.6605, - 0.1246, - 0.0182 ),\n\tvec3( - 0.5876, 1.1329, - 0.1006 ),\n\tvec3( - 0.0728, - 0.0083, 1.1187 )\n);\nconst mat3 LINEAR_SRGB_TO_LINEAR_REC2020 = mat3(\n\tvec3( 0.6274, 0.0691, 0.0164 ),\n\tvec3( 0.3293, 0.9195, 0.0880 ),\n\tvec3( 0.0433, 0.0113, 0.8956 )\n);\nvec3 agxDefaultContrastApprox( vec3 x ) {\n\tvec3 x2 = x * x;\n\tvec3 x4 = x2 * x2;\n\treturn + 15.5 * x4 * x2\n\t\t- 40.14 * x4 * x\n\t\t+ 31.96 * x4\n\t\t- 6.868 * x2 * x\n\t\t+ 0.4298 * x2\n\t\t+ 0.1191 * x\n\t\t- 0.00232;\n}\nvec3 AgXToneMapping( vec3 color ) {\n\tconst mat3 AgXInsetMatrix = mat3(\n\t\tvec3( 0.856627153315983, 0.137318972929847, 0.11189821299995 ),\n\t\tvec3( 0.0951212405381588, 0.761241990602591, 0.0767994186031903 ),\n\t\tvec3( 0.0482516061458583, 0.101439036467562, 0.811302368396859 )\n\t);\n\tconst mat3 AgXOutsetMatrix = mat3(\n\t\tvec3( 1.1271005818144368, - 0.1413297634984383, - 0.14132976349843826 ),\n\t\tvec3( - 0.11060664309660323, 1.157823702216272, - 0.11060664309660294 ),\n\t\tvec3( - 0.016493938717834573, - 0.016493938717834257, 1.2519364065950405 )\n\t);\n\tconst float AgxMinEv = - 12.47393;\tconst float AgxMaxEv = 4.026069;\n\tcolor *= toneMappingExposure;\n\tcolor = LINEAR_SRGB_TO_LINEAR_REC2020 * color;\n\tcolor = AgXInsetMatrix * color;\n\tcolor = max( color, 1e-10 );\tcolor = log2( color );\n\tcolor = ( color - AgxMinEv ) / ( AgxMaxEv - AgxMinEv );\n\tcolor = clamp( color, 0.0, 1.0 );\n\tcolor = agxDefaultContrastApprox( color );\n\tcolor = AgXOutsetMatrix * color;\n\tcolor = pow( max( vec3( 0.0 ), color ), vec3( 2.2 ) );\n\tcolor = LINEAR_REC2020_TO_LINEAR_SRGB * color;\n\tcolor = clamp( color, 0.0, 1.0 );\n\treturn color;\n}\nvec3 NeutralToneMapping( vec3 color ) {\n\tconst float StartCompression = 0.8 - 0.04;\n\tconst float Desaturation = 0.15;\n\tcolor *= toneMappingExposure;\n\tfloat x = min( color.r, min( color.g, color.b ) );\n\tfloat offset = x < 0.08 ? x - 6.25 * x * x : 0.04;\n\tcolor -= offset;\n\tfloat peak = max( color.r, max( color.g, color.b ) );\n\tif ( peak < StartCompression ) return color;\n\tfloat d = 1. - StartCompression;\n\tfloat newPeak = 1. - d * d / ( peak + d - StartCompression );\n\tcolor *= newPeak / peak;\n\tfloat g = 1. - 1. / ( Desaturation * ( peak - newPeak ) + 1. );\n\treturn mix( color, vec3( newPeak ), g );\n}\nvec3 CustomToneMapping( vec3 color ) { return color; }",transmission_fragment:"#ifdef USE_TRANSMISSION\n\tmaterial.transmission = transmission;\n\tmaterial.transmissionAlpha = 1.0;\n\tmaterial.thickness = thickness;\n\tmaterial.attenuationDistance = attenuationDistance;\n\tmaterial.attenuationColor = attenuationColor;\n\t#ifdef USE_TRANSMISSIONMAP\n\t\tmaterial.transmission *= texture2D( transmissionMap, vTransmissionMapUv ).r;\n\t#endif\n\t#ifdef USE_THICKNESSMAP\n\t\tmaterial.thickness *= texture2D( thicknessMap, vThicknessMapUv ).g;\n\t#endif\n\tvec3 pos = vWorldPosition;\n\tvec3 v = normalize( cameraPosition - pos );\n\tvec3 n = inverseTransformDirection( normal, viewMatrix );\n\tvec4 transmitted = getIBLVolumeRefraction(\n\t\tn, v, material.roughness, material.diffuseColor, material.specularColor, material.specularF90,\n\t\tpos, modelMatrix, viewMatrix, projectionMatrix, material.dispersion, material.ior, material.thickness,\n\t\tmaterial.attenuationColor, material.attenuationDistance );\n\tmaterial.transmissionAlpha = mix( material.transmissionAlpha, transmitted.a, material.transmission );\n\ttotalDiffuse = mix( totalDiffuse, transmitted.rgb, material.transmission );\n#endif",transmission_pars_fragment:"#ifdef USE_TRANSMISSION\n\tuniform float transmission;\n\tuniform float thickness;\n\tuniform float attenuationDistance;\n\tuniform vec3 attenuationColor;\n\t#ifdef USE_TRANSMISSIONMAP\n\t\tuniform sampler2D transmissionMap;\n\t#endif\n\t#ifdef USE_THICKNESSMAP\n\t\tuniform sampler2D thicknessMap;\n\t#endif\n\tuniform vec2 transmissionSamplerSize;\n\tuniform sampler2D transmissionSamplerMap;\n\tuniform mat4 modelMatrix;\n\tuniform mat4 projectionMatrix;\n\tvarying vec3 vWorldPosition;\n\tfloat w0( float a ) {\n\t\treturn ( 1.0 / 6.0 ) * ( a * ( a * ( - a + 3.0 ) - 3.0 ) + 1.0 );\n\t}\n\tfloat w1( float a ) {\n\t\treturn ( 1.0 / 6.0 ) * ( a *  a * ( 3.0 * a - 6.0 ) + 4.0 );\n\t}\n\tfloat w2( float a ){\n\t\treturn ( 1.0 / 6.0 ) * ( a * ( a * ( - 3.0 * a + 3.0 ) + 3.0 ) + 1.0 );\n\t}\n\tfloat w3( float a ) {\n\t\treturn ( 1.0 / 6.0 ) * ( a * a * a );\n\t}\n\tfloat g0( float a ) {\n\t\treturn w0( a ) + w1( a );\n\t}\n\tfloat g1( float a ) {\n\t\treturn w2( a ) + w3( a );\n\t}\n\tfloat h0( float a ) {\n\t\treturn - 1.0 + w1( a ) / ( w0( a ) + w1( a ) );\n\t}\n\tfloat h1( float a ) {\n\t\treturn 1.0 + w3( a ) / ( w2( a ) + w3( a ) );\n\t}\n\tvec4 bicubic( sampler2D tex, vec2 uv, vec4 texelSize, float lod ) {\n\t\tuv = uv * texelSize.zw + 0.5;\n\t\tvec2 iuv = floor( uv );\n\t\tvec2 fuv = fract( uv );\n\t\tfloat g0x = g0( fuv.x );\n\t\tfloat g1x = g1( fuv.x );\n\t\tfloat h0x = h0( fuv.x );\n\t\tfloat h1x = h1( fuv.x );\n\t\tfloat h0y = h0( fuv.y );\n\t\tfloat h1y = h1( fuv.y );\n\t\tvec2 p0 = ( vec2( iuv.x + h0x, iuv.y + h0y ) - 0.5 ) * texelSize.xy;\n\t\tvec2 p1 = ( vec2( iuv.x + h1x, iuv.y + h0y ) - 0.5 ) * texelSize.xy;\n\t\tvec2 p2 = ( vec2( iuv.x + h0x, iuv.y + h1y ) - 0.5 ) * texelSize.xy;\n\t\tvec2 p3 = ( vec2( iuv.x + h1x, iuv.y + h1y ) - 0.5 ) * texelSize.xy;\n\t\treturn g0( fuv.y ) * ( g0x * textureLod( tex, p0, lod ) + g1x * textureLod( tex, p1, lod ) ) +\n\t\t\tg1( fuv.y ) * ( g0x * textureLod( tex, p2, lod ) + g1x * textureLod( tex, p3, lod ) );\n\t}\n\tvec4 textureBicubic( sampler2D sampler, vec2 uv, float lod ) {\n\t\tvec2 fLodSize = vec2( textureSize( sampler, int( lod ) ) );\n\t\tvec2 cLodSize = vec2( textureSize( sampler, int( lod + 1.0 ) ) );\n\t\tvec2 fLodSizeInv = 1.0 / fLodSize;\n\t\tvec2 cLodSizeInv = 1.0 / cLodSize;\n\t\tvec4 fSample = bicubic( sampler, uv, vec4( fLodSizeInv, fLodSize ), floor( lod ) );\n\t\tvec4 cSample = bicubic( sampler, uv, vec4( cLodSizeInv, cLodSize ), ceil( lod ) );\n\t\treturn mix( fSample, cSample, fract( lod ) );\n\t}\n\tvec3 getVolumeTransmissionRay( const in vec3 n, const in vec3 v, const in float thickness, const in float ior, const in mat4 modelMatrix ) {\n\t\tvec3 refractionVector = refract( - v, normalize( n ), 1.0 / ior );\n\t\tvec3 modelScale;\n\t\tmodelScale.x = length( vec3( modelMatrix[ 0 ].xyz ) );\n\t\tmodelScale.y = length( vec3( modelMatrix[ 1 ].xyz ) );\n\t\tmodelScale.z = length( vec3( modelMatrix[ 2 ].xyz ) );\n\t\treturn normalize( refractionVector ) * thickness * modelScale;\n\t}\n\tfloat applyIorToRoughness( const in float roughness, const in float ior ) {\n\t\treturn roughness * clamp( ior * 2.0 - 2.0, 0.0, 1.0 );\n\t}\n\tvec4 getTransmissionSample( const in vec2 fragCoord, const in float roughness, const in float ior ) {\n\t\tfloat lod = log2( transmissionSamplerSize.x ) * applyIorToRoughness( roughness, ior );\n\t\treturn textureBicubic( transmissionSamplerMap, fragCoord.xy, lod );\n\t}\n\tvec3 volumeAttenuation( const in float transmissionDistance, const in vec3 attenuationColor, const in float attenuationDistance ) {\n\t\tif ( isinf( attenuationDistance ) ) {\n\t\t\treturn vec3( 1.0 );\n\t\t} else {\n\t\t\tvec3 attenuationCoefficient = -log( attenuationColor ) / attenuationDistance;\n\t\t\tvec3 transmittance = exp( - attenuationCoefficient * transmissionDistance );\t\t\treturn transmittance;\n\t\t}\n\t}\n\tvec4 getIBLVolumeRefraction( const in vec3 n, const in vec3 v, const in float roughness, const in vec3 diffuseColor,\n\t\tconst in vec3 specularColor, const in float specularF90, const in vec3 position, const in mat4 modelMatrix,\n\t\tconst in mat4 viewMatrix, const in mat4 projMatrix, const in float dispersion, const in float ior, const in float thickness,\n\t\tconst in vec3 attenuationColor, const in float attenuationDistance ) {\n\t\tvec4 transmittedLight;\n\t\tvec3 transmittance;\n\t\t#ifdef USE_DISPERSION\n\t\t\tfloat halfSpread = ( ior - 1.0 ) * 0.025 * dispersion;\n\t\t\tvec3 iors = vec3( ior - halfSpread, ior, ior + halfSpread );\n\t\t\tfor ( int i = 0; i < 3; i ++ ) {\n\t\t\t\tvec3 transmissionRay = getVolumeTransmissionRay( n, v, thickness, iors[ i ], modelMatrix );\n\t\t\t\tvec3 refractedRayExit = position + transmissionRay;\n\t\t\t\tvec4 ndcPos = projMatrix * viewMatrix * vec4( refractedRayExit, 1.0 );\n\t\t\t\tvec2 refractionCoords = ndcPos.xy / ndcPos.w;\n\t\t\t\trefractionCoords += 1.0;\n\t\t\t\trefractionCoords /= 2.0;\n\t\t\t\tvec4 transmissionSample = getTransmissionSample( refractionCoords, roughness, iors[ i ] );\n\t\t\t\ttransmittedLight[ i ] = transmissionSample[ i ];\n\t\t\t\ttransmittedLight.a += transmissionSample.a;\n\t\t\t\ttransmittance[ i ] = diffuseColor[ i ] * volumeAttenuation( length( transmissionRay ), attenuationColor, attenuationDistance )[ i ];\n\t\t\t}\n\t\t\ttransmittedLight.a /= 3.0;\n\t\t#else\n\t\t\tvec3 transmissionRay = getVolumeTransmissionRay( n, v, thickness, ior, modelMatrix );\n\t\t\tvec3 refractedRayExit = position + transmissionRay;\n\t\t\tvec4 ndcPos = projMatrix * viewMatrix * vec4( refractedRayExit, 1.0 );\n\t\t\tvec2 refractionCoords = ndcPos.xy / ndcPos.w;\n\t\t\trefractionCoords += 1.0;\n\t\t\trefractionCoords /= 2.0;\n\t\t\ttransmittedLight = getTransmissionSample( refractionCoords, roughness, ior );\n\t\t\ttransmittance = diffuseColor * volumeAttenuation( length( transmissionRay ), attenuationColor, attenuationDistance );\n\t\t#endif\n\t\tvec3 attenuatedColor = transmittance * transmittedLight.rgb;\n\t\tvec3 F = EnvironmentBRDF( n, v, specularColor, specularF90, roughness );\n\t\tfloat transmittanceFactor = ( transmittance.r + transmittance.g + transmittance.b ) / 3.0;\n\t\treturn vec4( ( 1.0 - F ) * attenuatedColor, 1.0 - ( 1.0 - transmittedLight.a ) * transmittanceFactor );\n\t}\n#endif",uv_pars_fragment:"#if defined( USE_UV ) || defined( USE_ANISOTROPY )\n\tvarying vec2 vUv;\n#endif\n#ifdef USE_MAP\n\tvarying vec2 vMapUv;\n#endif\n#ifdef USE_ALPHAMAP\n\tvarying vec2 vAlphaMapUv;\n#endif\n#ifdef USE_LIGHTMAP\n\tvarying vec2 vLightMapUv;\n#endif\n#ifdef USE_AOMAP\n\tvarying vec2 vAoMapUv;\n#endif\n#ifdef USE_BUMPMAP\n\tvarying vec2 vBumpMapUv;\n#endif\n#ifdef USE_NORMALMAP\n\tvarying vec2 vNormalMapUv;\n#endif\n#ifdef USE_EMISSIVEMAP\n\tvarying vec2 vEmissiveMapUv;\n#endif\n#ifdef USE_METALNESSMAP\n\tvarying vec2 vMetalnessMapUv;\n#endif\n#ifdef USE_ROUGHNESSMAP\n\tvarying vec2 vRoughnessMapUv;\n#endif\n#ifdef USE_ANISOTROPYMAP\n\tvarying vec2 vAnisotropyMapUv;\n#endif\n#ifdef USE_CLEARCOATMAP\n\tvarying vec2 vClearcoatMapUv;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tvarying vec2 vClearcoatNormalMapUv;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tvarying vec2 vClearcoatRoughnessMapUv;\n#endif\n#ifdef USE_IRIDESCENCEMAP\n\tvarying vec2 vIridescenceMapUv;\n#endif\n#ifdef USE_IRIDESCENCE_THICKNESSMAP\n\tvarying vec2 vIridescenceThicknessMapUv;\n#endif\n#ifdef USE_SHEEN_COLORMAP\n\tvarying vec2 vSheenColorMapUv;\n#endif\n#ifdef USE_SHEEN_ROUGHNESSMAP\n\tvarying vec2 vSheenRoughnessMapUv;\n#endif\n#ifdef USE_SPECULARMAP\n\tvarying vec2 vSpecularMapUv;\n#endif\n#ifdef USE_SPECULAR_COLORMAP\n\tvarying vec2 vSpecularColorMapUv;\n#endif\n#ifdef USE_SPECULAR_INTENSITYMAP\n\tvarying vec2 vSpecularIntensityMapUv;\n#endif\n#ifdef USE_TRANSMISSIONMAP\n\tuniform mat3 transmissionMapTransform;\n\tvarying vec2 vTransmissionMapUv;\n#endif\n#ifdef USE_THICKNESSMAP\n\tuniform mat3 thicknessMapTransform;\n\tvarying vec2 vThicknessMapUv;\n#endif",uv_pars_vertex:"#if defined( USE_UV ) || defined( USE_ANISOTROPY )\n\tvarying vec2 vUv;\n#endif\n#ifdef USE_MAP\n\tuniform mat3 mapTransform;\n\tvarying vec2 vMapUv;\n#endif\n#ifdef USE_ALPHAMAP\n\tuniform mat3 alphaMapTransform;\n\tvarying vec2 vAlphaMapUv;\n#endif\n#ifdef USE_LIGHTMAP\n\tuniform mat3 lightMapTransform;\n\tvarying vec2 vLightMapUv;\n#endif\n#ifdef USE_AOMAP\n\tuniform mat3 aoMapTransform;\n\tvarying vec2 vAoMapUv;\n#endif\n#ifdef USE_BUMPMAP\n\tuniform mat3 bumpMapTransform;\n\tvarying vec2 vBumpMapUv;\n#endif\n#ifdef USE_NORMALMAP\n\tuniform mat3 normalMapTransform;\n\tvarying vec2 vNormalMapUv;\n#endif\n#ifdef USE_DISPLACEMENTMAP\n\tuniform mat3 displacementMapTransform;\n\tvarying vec2 vDisplacementMapUv;\n#endif\n#ifdef USE_EMISSIVEMAP\n\tuniform mat3 emissiveMapTransform;\n\tvarying vec2 vEmissiveMapUv;\n#endif\n#ifdef USE_METALNESSMAP\n\tuniform mat3 metalnessMapTransform;\n\tvarying vec2 vMetalnessMapUv;\n#endif\n#ifdef USE_ROUGHNESSMAP\n\tuniform mat3 roughnessMapTransform;\n\tvarying vec2 vRoughnessMapUv;\n#endif\n#ifdef USE_ANISOTROPYMAP\n\tuniform mat3 anisotropyMapTransform;\n\tvarying vec2 vAnisotropyMapUv;\n#endif\n#ifdef USE_CLEARCOATMAP\n\tuniform mat3 clearcoatMapTransform;\n\tvarying vec2 vClearcoatMapUv;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tuniform mat3 clearcoatNormalMapTransform;\n\tvarying vec2 vClearcoatNormalMapUv;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tuniform mat3 clearcoatRoughnessMapTransform;\n\tvarying vec2 vClearcoatRoughnessMapUv;\n#endif\n#ifdef USE_SHEEN_COLORMAP\n\tuniform mat3 sheenColorMapTransform;\n\tvarying vec2 vSheenColorMapUv;\n#endif\n#ifdef USE_SHEEN_ROUGHNESSMAP\n\tuniform mat3 sheenRoughnessMapTransform;\n\tvarying vec2 vSheenRoughnessMapUv;\n#endif\n#ifdef USE_IRIDESCENCEMAP\n\tuniform mat3 iridescenceMapTransform;\n\tvarying vec2 vIridescenceMapUv;\n#endif\n#ifdef USE_IRIDESCENCE_THICKNESSMAP\n\tuniform mat3 iridescenceThicknessMapTransform;\n\tvarying vec2 vIridescenceThicknessMapUv;\n#endif\n#ifdef USE_SPECULARMAP\n\tuniform mat3 specularMapTransform;\n\tvarying vec2 vSpecularMapUv;\n#endif\n#ifdef USE_SPECULAR_COLORMAP\n\tuniform mat3 specularColorMapTransform;\n\tvarying vec2 vSpecularColorMapUv;\n#endif\n#ifdef USE_SPECULAR_INTENSITYMAP\n\tuniform mat3 specularIntensityMapTransform;\n\tvarying vec2 vSpecularIntensityMapUv;\n#endif\n#ifdef USE_TRANSMISSIONMAP\n\tuniform mat3 transmissionMapTransform;\n\tvarying vec2 vTransmissionMapUv;\n#endif\n#ifdef USE_THICKNESSMAP\n\tuniform mat3 thicknessMapTransform;\n\tvarying vec2 vThicknessMapUv;\n#endif",uv_vertex:"#if defined( USE_UV ) || defined( USE_ANISOTROPY )\n\tvUv = vec3( uv, 1 ).xy;\n#endif\n#ifdef USE_MAP\n\tvMapUv = ( mapTransform * vec3( MAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_ALPHAMAP\n\tvAlphaMapUv = ( alphaMapTransform * vec3( ALPHAMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_LIGHTMAP\n\tvLightMapUv = ( lightMapTransform * vec3( LIGHTMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_AOMAP\n\tvAoMapUv = ( aoMapTransform * vec3( AOMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_BUMPMAP\n\tvBumpMapUv = ( bumpMapTransform * vec3( BUMPMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_NORMALMAP\n\tvNormalMapUv = ( normalMapTransform * vec3( NORMALMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_DISPLACEMENTMAP\n\tvDisplacementMapUv = ( displacementMapTransform * vec3( DISPLACEMENTMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_EMISSIVEMAP\n\tvEmissiveMapUv = ( emissiveMapTransform * vec3( EMISSIVEMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_METALNESSMAP\n\tvMetalnessMapUv = ( metalnessMapTransform * vec3( METALNESSMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_ROUGHNESSMAP\n\tvRoughnessMapUv = ( roughnessMapTransform * vec3( ROUGHNESSMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_ANISOTROPYMAP\n\tvAnisotropyMapUv = ( anisotropyMapTransform * vec3( ANISOTROPYMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_CLEARCOATMAP\n\tvClearcoatMapUv = ( clearcoatMapTransform * vec3( CLEARCOATMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tvClearcoatNormalMapUv = ( clearcoatNormalMapTransform * vec3( CLEARCOAT_NORMALMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tvClearcoatRoughnessMapUv = ( clearcoatRoughnessMapTransform * vec3( CLEARCOAT_ROUGHNESSMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_IRIDESCENCEMAP\n\tvIridescenceMapUv = ( iridescenceMapTransform * vec3( IRIDESCENCEMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_IRIDESCENCE_THICKNESSMAP\n\tvIridescenceThicknessMapUv = ( iridescenceThicknessMapTransform * vec3( IRIDESCENCE_THICKNESSMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_SHEEN_COLORMAP\n\tvSheenColorMapUv = ( sheenColorMapTransform * vec3( SHEEN_COLORMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_SHEEN_ROUGHNESSMAP\n\tvSheenRoughnessMapUv = ( sheenRoughnessMapTransform * vec3( SHEEN_ROUGHNESSMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_SPECULARMAP\n\tvSpecularMapUv = ( specularMapTransform * vec3( SPECULARMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_SPECULAR_COLORMAP\n\tvSpecularColorMapUv = ( specularColorMapTransform * vec3( SPECULAR_COLORMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_SPECULAR_INTENSITYMAP\n\tvSpecularIntensityMapUv = ( specularIntensityMapTransform * vec3( SPECULAR_INTENSITYMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_TRANSMISSIONMAP\n\tvTransmissionMapUv = ( transmissionMapTransform * vec3( TRANSMISSIONMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_THICKNESSMAP\n\tvThicknessMapUv = ( thicknessMapTransform * vec3( THICKNESSMAP_UV, 1 ) ).xy;\n#endif",worldpos_vertex:"#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP ) || defined ( USE_TRANSMISSION ) || NUM_SPOT_LIGHT_COORDS > 0\n\tvec4 worldPosition = vec4( transformed, 1.0 );\n\t#ifdef USE_BATCHING\n\t\tworldPosition = batchingMatrix * worldPosition;\n\t#endif\n\t#ifdef USE_INSTANCING\n\t\tworldPosition = instanceMatrix * worldPosition;\n\t#endif\n\tworldPosition = modelMatrix * worldPosition;\n#endif",background_vert:"varying vec2 vUv;\nuniform mat3 uvTransform;\nvoid main() {\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n\tgl_Position = vec4( position.xy, 1.0, 1.0 );\n}",background_frag:"uniform sampler2D t2D;\nuniform float backgroundIntensity;\nvarying vec2 vUv;\nvoid main() {\n\tvec4 texColor = texture2D( t2D, vUv );\n\t#ifdef DECODE_VIDEO_TEXTURE\n\t\ttexColor = vec4( mix( pow( texColor.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), texColor.rgb * 0.0773993808, vec3( lessThanEqual( texColor.rgb, vec3( 0.04045 ) ) ) ), texColor.w );\n\t#endif\n\ttexColor.rgb *= backgroundIntensity;\n\tgl_FragColor = texColor;\n\t#include <tonemapping_fragment>\n\t#include <colorspace_fragment>\n}",backgroundCube_vert:"varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\tgl_Position.z = gl_Position.w;\n}",backgroundCube_frag:"#ifdef ENVMAP_TYPE_CUBE\n\tuniform samplerCube envMap;\n#elif defined( ENVMAP_TYPE_CUBE_UV )\n\tuniform sampler2D envMap;\n#endif\nuniform float flipEnvMap;\nuniform float backgroundBlurriness;\nuniform float backgroundIntensity;\nuniform mat3 backgroundRotation;\nvarying vec3 vWorldDirection;\n#include <cube_uv_reflection_fragment>\nvoid main() {\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 texColor = textureCube( envMap, backgroundRotation * vec3( flipEnvMap * vWorldDirection.x, vWorldDirection.yz ) );\n\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\tvec4 texColor = textureCubeUV( envMap, backgroundRotation * vWorldDirection, backgroundBlurriness );\n\t#else\n\t\tvec4 texColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\t#endif\n\ttexColor.rgb *= backgroundIntensity;\n\tgl_FragColor = texColor;\n\t#include <tonemapping_fragment>\n\t#include <colorspace_fragment>\n}",cube_vert:"varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\tgl_Position.z = gl_Position.w;\n}",cube_frag:"uniform samplerCube tCube;\nuniform float tFlip;\nuniform float opacity;\nvarying vec3 vWorldDirection;\nvoid main() {\n\tvec4 texColor = textureCube( tCube, vec3( tFlip * vWorldDirection.x, vWorldDirection.yz ) );\n\tgl_FragColor = texColor;\n\tgl_FragColor.a *= opacity;\n\t#include <tonemapping_fragment>\n\t#include <colorspace_fragment>\n}",depth_vert:"#include <common>\n#include <batching_pars_vertex>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <uv_vertex>\n\t#include <batching_vertex>\n\t#include <skinbase_vertex>\n\t#include <morphinstance_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvHighPrecisionZW = gl_Position.zw;\n}",depth_frag:"#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <alphahash_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include <clipping_planes_fragment>\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <alphahash_fragment>\n\t#include <logdepthbuf_fragment>\n\tfloat fragCoordZ = 0.5 * vHighPrecisionZW[0] / vHighPrecisionZW[1] + 0.5;\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( 1.0 - fragCoordZ ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( fragCoordZ );\n\t#elif DEPTH_PACKING == 3202\n\t\tgl_FragColor = vec4( packDepthToRGB( fragCoordZ ), 1.0 );\n\t#elif DEPTH_PACKING == 3203\n\t\tgl_FragColor = vec4( packDepthToRG( fragCoordZ ), 0.0, 1.0 );\n\t#endif\n}",distanceRGBA_vert:"#define DISTANCE\nvarying vec3 vWorldPosition;\n#include <common>\n#include <batching_pars_vertex>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <batching_vertex>\n\t#include <skinbase_vertex>\n\t#include <morphinstance_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\tvWorldPosition = worldPosition.xyz;\n}",distanceRGBA_frag:"#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <alphahash_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main () {\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include <clipping_planes_fragment>\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <alphahash_fragment>\n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}",equirect_vert:"varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n}",equirect_frag:"uniform sampler2D tEquirect;\nvarying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvec3 direction = normalize( vWorldDirection );\n\tvec2 sampleUV = equirectUv( direction );\n\tgl_FragColor = texture2D( tEquirect, sampleUV );\n\t#include <tonemapping_fragment>\n\t#include <colorspace_fragment>\n}",linedashed_vert:"uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include <common>\n#include <uv_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\tvLineDistance = scale * lineDistance;\n\t#include <uv_vertex>\n\t#include <color_vertex>\n\t#include <morphinstance_vertex>\n\t#include <morphcolor_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}",linedashed_frag:"uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <clipping_planes_fragment>\n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\t#include <opaque_fragment>\n\t#include <tonemapping_fragment>\n\t#include <colorspace_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}",meshbasic_vert:"#include <common>\n#include <batching_pars_vertex>\n#include <uv_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <color_vertex>\n\t#include <morphinstance_vertex>\n\t#include <morphcolor_vertex>\n\t#include <batching_vertex>\n\t#if defined ( USE_ENVMAP ) || defined ( USE_SKINNING )\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinbase_vertex>\n\t\t#include <skinnormal_vertex>\n\t\t#include <defaultnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <fog_vertex>\n}",meshbasic_frag:"uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <alphahash_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <clipping_planes_fragment>\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <alphahash_fragment>\n\t#include <specularmap_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel = texture2D( lightMap, vLightMapUv );\n\t\treflectedLight.indirectDiffuse += lightMapTexel.rgb * lightMapIntensity * RECIPROCAL_PI;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include <aomap_fragment>\n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include <envmap_fragment>\n\t#include <opaque_fragment>\n\t#include <tonemapping_fragment>\n\t#include <colorspace_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",meshlambert_vert:"#define LAMBERT\nvarying vec3 vViewPosition;\n#include <common>\n#include <batching_pars_vertex>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <color_vertex>\n\t#include <morphinstance_vertex>\n\t#include <morphcolor_vertex>\n\t#include <batching_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <normal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",meshlambert_frag:"#define LAMBERT\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <alphahash_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <normal_pars_fragment>\n#include <lights_lambert_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <clipping_planes_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <alphahash_fragment>\n\t#include <specularmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_lambert_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\t#include <opaque_fragment>\n\t#include <tonemapping_fragment>\n\t#include <colorspace_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",meshmatcap_vert:"#define MATCAP\nvarying vec3 vViewPosition;\n#include <common>\n#include <batching_pars_vertex>\n#include <uv_pars_vertex>\n#include <color_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <fog_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <color_vertex>\n\t#include <morphinstance_vertex>\n\t#include <morphcolor_vertex>\n\t#include <batching_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <normal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n\tvViewPosition = - mvPosition.xyz;\n}",meshmatcap_frag:"#define MATCAP\nuniform vec3 diffuse;\nuniform float opacity;\nuniform sampler2D matcap;\nvarying vec3 vViewPosition;\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <alphahash_pars_fragment>\n#include <fog_pars_fragment>\n#include <normal_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <clipping_planes_fragment>\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <alphahash_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tvec3 viewDir = normalize( vViewPosition );\n\tvec3 x = normalize( vec3( viewDir.z, 0.0, - viewDir.x ) );\n\tvec3 y = cross( viewDir, x );\n\tvec2 uv = vec2( dot( x, normal ), dot( y, normal ) ) * 0.495 + 0.5;\n\t#ifdef USE_MATCAP\n\t\tvec4 matcapColor = texture2D( matcap, uv );\n\t#else\n\t\tvec4 matcapColor = vec4( vec3( mix( 0.2, 0.8, uv.y ) ), 1.0 );\n\t#endif\n\tvec3 outgoingLight = diffuseColor.rgb * matcapColor.rgb;\n\t#include <opaque_fragment>\n\t#include <tonemapping_fragment>\n\t#include <colorspace_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",meshnormal_vert:"#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP_TANGENTSPACE )\n\tvarying vec3 vViewPosition;\n#endif\n#include <common>\n#include <batching_pars_vertex>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <batching_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphinstance_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <normal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP_TANGENTSPACE )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}",meshnormal_frag:"#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP_TANGENTSPACE )\n\tvarying vec3 vViewPosition;\n#endif\n#include <packing>\n#include <uv_pars_fragment>\n#include <normal_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\tvec4 diffuseColor = vec4( 0.0, 0.0, 0.0, opacity );\n\t#include <clipping_planes_fragment>\n\t#include <logdepthbuf_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tgl_FragColor = vec4( packNormalToRGB( normal ), diffuseColor.a );\n\t#ifdef OPAQUE\n\t\tgl_FragColor.a = 1.0;\n\t#endif\n}",meshphong_vert:"#define PHONG\nvarying vec3 vViewPosition;\n#include <common>\n#include <batching_pars_vertex>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <color_vertex>\n\t#include <morphcolor_vertex>\n\t#include <batching_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphinstance_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <normal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",meshphong_frag:"#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <alphahash_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <normal_pars_fragment>\n#include <lights_phong_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <clipping_planes_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <alphahash_fragment>\n\t#include <specularmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_phong_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\t#include <opaque_fragment>\n\t#include <tonemapping_fragment>\n\t#include <colorspace_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",meshphysical_vert:"#define STANDARD\nvarying vec3 vViewPosition;\n#ifdef USE_TRANSMISSION\n\tvarying vec3 vWorldPosition;\n#endif\n#include <common>\n#include <batching_pars_vertex>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <color_vertex>\n\t#include <morphinstance_vertex>\n\t#include <morphcolor_vertex>\n\t#include <batching_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <normal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n#ifdef USE_TRANSMISSION\n\tvWorldPosition = worldPosition.xyz;\n#endif\n}",meshphysical_frag:"#define STANDARD\n#ifdef PHYSICAL\n\t#define IOR\n\t#define USE_SPECULAR\n#endif\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifdef IOR\n\tuniform float ior;\n#endif\n#ifdef USE_SPECULAR\n\tuniform float specularIntensity;\n\tuniform vec3 specularColor;\n\t#ifdef USE_SPECULAR_COLORMAP\n\t\tuniform sampler2D specularColorMap;\n\t#endif\n\t#ifdef USE_SPECULAR_INTENSITYMAP\n\t\tuniform sampler2D specularIntensityMap;\n\t#endif\n#endif\n#ifdef USE_CLEARCOAT\n\tuniform float clearcoat;\n\tuniform float clearcoatRoughness;\n#endif\n#ifdef USE_DISPERSION\n\tuniform float dispersion;\n#endif\n#ifdef USE_IRIDESCENCE\n\tuniform float iridescence;\n\tuniform float iridescenceIOR;\n\tuniform float iridescenceThicknessMinimum;\n\tuniform float iridescenceThicknessMaximum;\n#endif\n#ifdef USE_SHEEN\n\tuniform vec3 sheenColor;\n\tuniform float sheenRoughness;\n\t#ifdef USE_SHEEN_COLORMAP\n\t\tuniform sampler2D sheenColorMap;\n\t#endif\n\t#ifdef USE_SHEEN_ROUGHNESSMAP\n\t\tuniform sampler2D sheenRoughnessMap;\n\t#endif\n#endif\n#ifdef USE_ANISOTROPY\n\tuniform vec2 anisotropyVector;\n\t#ifdef USE_ANISOTROPYMAP\n\t\tuniform sampler2D anisotropyMap;\n\t#endif\n#endif\nvarying vec3 vViewPosition;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <alphahash_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <iridescence_fragment>\n#include <cube_uv_reflection_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_physical_pars_fragment>\n#include <fog_pars_fragment>\n#include <lights_pars_begin>\n#include <normal_pars_fragment>\n#include <lights_physical_pars_fragment>\n#include <transmission_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <clearcoat_pars_fragment>\n#include <iridescence_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <clipping_planes_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <alphahash_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <clearcoat_normal_fragment_begin>\n\t#include <clearcoat_normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 totalDiffuse = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse;\n\tvec3 totalSpecular = reflectedLight.directSpecular + reflectedLight.indirectSpecular;\n\t#include <transmission_fragment>\n\tvec3 outgoingLight = totalDiffuse + totalSpecular + totalEmissiveRadiance;\n\t#ifdef USE_SHEEN\n\t\tfloat sheenEnergyComp = 1.0 - 0.157 * max3( material.sheenColor );\n\t\toutgoingLight = outgoingLight * sheenEnergyComp + sheenSpecularDirect + sheenSpecularIndirect;\n\t#endif\n\t#ifdef USE_CLEARCOAT\n\t\tfloat dotNVcc = saturate( dot( geometryClearcoatNormal, geometryViewDir ) );\n\t\tvec3 Fcc = F_Schlick( material.clearcoatF0, material.clearcoatF90, dotNVcc );\n\t\toutgoingLight = outgoingLight * ( 1.0 - material.clearcoat * Fcc ) + ( clearcoatSpecularDirect + clearcoatSpecularIndirect ) * material.clearcoat;\n\t#endif\n\t#include <opaque_fragment>\n\t#include <tonemapping_fragment>\n\t#include <colorspace_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",meshtoon_vert:"#define TOON\nvarying vec3 vViewPosition;\n#include <common>\n#include <batching_pars_vertex>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <color_vertex>\n\t#include <morphinstance_vertex>\n\t#include <morphcolor_vertex>\n\t#include <batching_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <normal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",meshtoon_frag:"#define TOON\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <alphahash_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <gradientmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <normal_pars_fragment>\n#include <lights_toon_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <clipping_planes_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <alphahash_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_toon_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <opaque_fragment>\n\t#include <tonemapping_fragment>\n\t#include <colorspace_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",points_vert:"uniform float size;\nuniform float scale;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\n#ifdef USE_POINTS_UV\n\tvarying vec2 vUv;\n\tuniform mat3 uvTransform;\n#endif\nvoid main() {\n\t#ifdef USE_POINTS_UV\n\t\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n\t#endif\n\t#include <color_vertex>\n\t#include <morphinstance_vertex>\n\t#include <morphcolor_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\tgl_PointSize = size;\n\t#ifdef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) gl_PointSize *= ( scale / - mvPosition.z );\n\t#endif\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <fog_vertex>\n}",points_frag:"uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <color_pars_fragment>\n#include <map_particle_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <alphahash_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\t#include <logdepthbuf_fragment>\n\t#include <map_particle_fragment>\n\t#include <color_fragment>\n\t#include <alphatest_fragment>\n\t#include <alphahash_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\t#include <opaque_fragment>\n\t#include <tonemapping_fragment>\n\t#include <colorspace_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}",shadow_vert:"#include <common>\n#include <batching_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <shadowmap_pars_vertex>\nvoid main() {\n\t#include <batching_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphinstance_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",shadow_frag:"uniform vec3 color;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <logdepthbuf_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\nvoid main() {\n\t#include <logdepthbuf_fragment>\n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include <tonemapping_fragment>\n\t#include <colorspace_fragment>\n\t#include <fog_fragment>\n}",sprite_vert:"uniform float rotation;\nuniform vec2 center;\n#include <common>\n#include <uv_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\tvec4 mvPosition = modelViewMatrix[ 3 ];\n\tvec2 scale = vec2( length( modelMatrix[ 0 ].xyz ), length( modelMatrix[ 1 ].xyz ) );\n\t#ifndef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) scale *= - mvPosition.z;\n\t#endif\n\tvec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\n\tvec2 rotatedPosition;\n\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\n\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\n\tmvPosition.xy += rotatedPosition;\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}",sprite_frag:"uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <alphahash_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <alphahash_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\t#include <opaque_fragment>\n\t#include <tonemapping_fragment>\n\t#include <colorspace_fragment>\n\t#include <fog_fragment>\n}"},ml={common:{diffuse:{value:new Xn(16777215)},opacity:{value:1},map:{value:null},mapTransform:{value:new Ze},alphaMap:{value:null},alphaMapTransform:{value:new Ze},alphaTest:{value:0}},specularmap:{specularMap:{value:null},specularMapTransform:{value:new Ze}},envmap:{envMap:{value:null},envMapRotation:{value:new Ze},flipEnvMap:{value:-1},reflectivity:{value:1},ior:{value:1.5},refractionRatio:{value:.98}},aomap:{aoMap:{value:null},aoMapIntensity:{value:1},aoMapTransform:{value:new Ze}},lightmap:{lightMap:{value:null},lightMapIntensity:{value:1},lightMapTransform:{value:new Ze}},bumpmap:{bumpMap:{value:null},bumpMapTransform:{value:new Ze},bumpScale:{value:1}},normalmap:{normalMap:{value:null},normalMapTransform:{value:new Ze},normalScale:{value:new $e(1,1)}},displacementmap:{displacementMap:{value:null},displacementMapTransform:{value:new Ze},displacementScale:{value:1},displacementBias:{value:0}},emissivemap:{emissiveMap:{value:null},emissiveMapTransform:{value:new Ze}},metalnessmap:{metalnessMap:{value:null},metalnessMapTransform:{value:new Ze}},roughnessmap:{roughnessMap:{value:null},roughnessMapTransform:{value:new Ze}},gradientmap:{gradientMap:{value:null}},fog:{fogDensity:{value:25e-5},fogNear:{value:1},fogFar:{value:2e3},fogColor:{value:new Xn(16777215)}},lights:{ambientLightColor:{value:[]},lightProbe:{value:[]},directionalLights:{value:[],properties:{direction:{},color:{}}},directionalLightShadows:{value:[],properties:{shadowIntensity:1,shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{}}},directionalShadowMap:{value:[]},directionalShadowMatrix:{value:[]},spotLights:{value:[],properties:{color:{},position:{},direction:{},distance:{},coneCos:{},penumbraCos:{},decay:{}}},spotLightShadows:{value:[],properties:{shadowIntensity:1,shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{}}},spotLightMap:{value:[]},spotShadowMap:{value:[]},spotLightMatrix:{value:[]},pointLights:{value:[],properties:{color:{},position:{},decay:{},distance:{}}},pointLightShadows:{value:[],properties:{shadowIntensity:1,shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{},shadowCameraNear:{},shadowCameraFar:{}}},pointShadowMap:{value:[]},pointShadowMatrix:{value:[]},hemisphereLights:{value:[],properties:{direction:{},skyColor:{},groundColor:{}}},rectAreaLights:{value:[],properties:{color:{},position:{},width:{},height:{}}},ltc_1:{value:null},ltc_2:{value:null}},points:{diffuse:{value:new Xn(16777215)},opacity:{value:1},size:{value:1},scale:{value:1},map:{value:null},alphaMap:{value:null},alphaMapTransform:{value:new Ze},alphaTest:{value:0},uvTransform:{value:new Ze}},sprite:{diffuse:{value:new Xn(16777215)},opacity:{value:1},center:{value:new $e(.5,.5)},rotation:{value:0},map:{value:null},mapTransform:{value:new Ze},alphaMap:{value:null},alphaMapTransform:{value:new Ze},alphaTest:{value:0}}},gl={basic:{uniforms:Ds([ml.common,ml.specularmap,ml.envmap,ml.aomap,ml.lightmap,ml.fog]),vertexShader:Al.meshbasic_vert,fragmentShader:Al.meshbasic_frag},lambert:{uniforms:Ds([ml.common,ml.specularmap,ml.envmap,ml.aomap,ml.lightmap,ml.emissivemap,ml.bumpmap,ml.normalmap,ml.displacementmap,ml.fog,ml.lights,{emissive:{value:new Xn(0)}}]),vertexShader:Al.meshlambert_vert,fragmentShader:Al.meshlambert_frag},phong:{uniforms:Ds([ml.common,ml.specularmap,ml.envmap,ml.aomap,ml.lightmap,ml.emissivemap,ml.bumpmap,ml.normalmap,ml.displacementmap,ml.fog,ml.lights,{emissive:{value:new Xn(0)},specular:{value:new Xn(1118481)},shininess:{value:30}}]),vertexShader:Al.meshphong_vert,fragmentShader:Al.meshphong_frag},standard:{uniforms:Ds([ml.common,ml.envmap,ml.aomap,ml.lightmap,ml.emissivemap,ml.bumpmap,ml.normalmap,ml.displacementmap,ml.roughnessmap,ml.metalnessmap,ml.fog,ml.lights,{emissive:{value:new Xn(0)},roughness:{value:1},metalness:{value:0},envMapIntensity:{value:1}}]),vertexShader:Al.meshphysical_vert,fragmentShader:Al.meshphysical_frag},toon:{uniforms:Ds([ml.common,ml.aomap,ml.lightmap,ml.emissivemap,ml.bumpmap,ml.normalmap,ml.displacementmap,ml.gradientmap,ml.fog,ml.lights,{emissive:{value:new Xn(0)}}]),vertexShader:Al.meshtoon_vert,fragmentShader:Al.meshtoon_frag},matcap:{uniforms:Ds([ml.common,ml.bumpmap,ml.normalmap,ml.displacementmap,ml.fog,{matcap:{value:null}}]),vertexShader:Al.meshmatcap_vert,fragmentShader:Al.meshmatcap_frag},points:{uniforms:Ds([ml.points,ml.fog]),vertexShader:Al.points_vert,fragmentShader:Al.points_frag},dashed:{uniforms:Ds([ml.common,ml.fog,{scale:{value:1},dashSize:{value:1},totalSize:{value:2}}]),vertexShader:Al.linedashed_vert,fragmentShader:Al.linedashed_frag},depth:{uniforms:Ds([ml.common,ml.displacementmap]),vertexShader:Al.depth_vert,fragmentShader:Al.depth_frag},normal:{uniforms:Ds([ml.common,ml.bumpmap,ml.normalmap,ml.displacementmap,{opacity:{value:1}}]),vertexShader:Al.meshnormal_vert,fragmentShader:Al.meshnormal_frag},sprite:{uniforms:Ds([ml.sprite,ml.fog]),vertexShader:Al.sprite_vert,fragmentShader:Al.sprite_frag},background:{uniforms:{uvTransform:{value:new Ze},t2D:{value:null},backgroundIntensity:{value:1}},vertexShader:Al.background_vert,fragmentShader:Al.background_frag},backgroundCube:{uniforms:{envMap:{value:null},flipEnvMap:{value:-1},backgroundBlurriness:{value:0},backgroundIntensity:{value:1},backgroundRotation:{value:new Ze}},vertexShader:Al.backgroundCube_vert,fragmentShader:Al.backgroundCube_frag},cube:{uniforms:{tCube:{value:null},tFlip:{value:-1},opacity:{value:1}},vertexShader:Al.cube_vert,fragmentShader:Al.cube_frag},equirect:{uniforms:{tEquirect:{value:null}},vertexShader:Al.equirect_vert,fragmentShader:Al.equirect_frag},distanceRGBA:{uniforms:Ds([ml.common,ml.displacementmap,{referencePosition:{value:new Ci},nearDistance:{value:1},farDistance:{value:1e3}}]),vertexShader:Al.distanceRGBA_vert,fragmentShader:Al.distanceRGBA_frag},shadow:{uniforms:Ds([ml.lights,ml.fog,{color:{value:new 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Ol{constructor(t){this._renderer=t,this._pingPongRenderTarget=null,this._lodMax=0,this._cubeSize=0,this._lodPlanes=[],this._sizeLods=[],this._sigmas=[],this._blurMaterial=null,this._cubemapMaterial=null,this._equirectMaterial=null,this._compileMaterial(this._blurMaterial)}fromScene(t,e=0,i=.1,n=100,s={}){const{size:r=256,position:a=Nl}=s;Bl=this._renderer.getRenderTarget(),Rl=this._renderer.getActiveCubeFace(),Dl=this._renderer.getActiveMipmapLevel(),Ll=this._renderer.xr.enabled,this._renderer.xr.enabled=!1,this._setSize(r);const o=this._allocateTargets();return o.depthBuffer=!0,this._sceneToCubeUV(t,i,n,o,a),e>0&&this._blur(o,0,0,e),this._applyPMREM(o),this._cleanup(o),o}fromEquirectangular(t,e=null){return this._fromTexture(t,e)}fromCubemap(t,e=null){return 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t=0;t<this._lodPlanes.length;t++)this._lodPlanes[t].dispose()}_cleanup(t){this._renderer.setRenderTarget(Bl,Rl,Dl),this._renderer.xr.enabled=Ll,t.scissorTest=!1,kl(t,0,0,t.width,t.height)}_fromTexture(t,e){t.mapping===it||t.mapping===nt?this._setSize(0===t.image.length?16:t.image[0].width||t.image[0].image.width):this._setSize(t.image.width/4),Bl=this._renderer.getRenderTarget(),Rl=this._renderer.getActiveCubeFace(),Dl=this._renderer.getActiveMipmapLevel(),Ll=this._renderer.xr.enabled,this._renderer.xr.enabled=!1;const i=e||this._allocateTargets();return this._textureToCubeUV(t,i),this._applyPMREM(i),this._cleanup(i),i}_allocateTargets(){const t=3*Math.max(this._cubeSize,112),e=4*this._cubeSize,i={magFilter:dt,minFilter:dt,generateMipmaps:!1,type:_t,format:It,colorSpace:Se,depthBuffer:!1},n=Ql(t,e,i);if(null===this._pingPongRenderTarget||this._pingPongRenderTarget.width!==t||this._pingPongRenderTarget.height!==e){null!==this._pingPongRenderTarget&&this._dispose(),this._pingPongRenderTarget=Ql(t,e,i);const{_lodMax:n}=this;({sizeLods:this._sizeLods,lodPlanes:this._lodPlanes,sigmas:this._sigmas}=function(t){const e=[],i=[],n=[];let s=t;const r=t-4+1+wl.length;for(let a=0;a<r;a++){const r=Math.pow(2,s);i.push(r);let o=1/r;a>t-4?o=wl[a-t+4-1]:0===a&&(o=0),n.push(o);const l=1/(r-2),c=-l,h=1+l,u=[c,c,h,c,h,h,c,c,h,h,c,h],d=6,p=6,A=3,m=2,g=1,f=new Float32Array(A*p*d),v=new Float32Array(m*p*d),b=new Float32Array(g*p*d);for(let t=0;t<d;t++){const e=t%3*2/3-1,i=t>2?0:-1,n=[e,i,0,e+2/3,i,0,e+2/3,i+1,0,e,i,0,e+2/3,i+1,0,e,i+1,0];f.set(n,A*p*t),v.set(u,m*p*t);const s=[t,t,t,t,t,t];b.set(s,g*p*t)}const y=new gs;y.setAttribute("position",new rs(f,A)),y.setAttribute("uv",new rs(v,m)),y.setAttribute("faceIndex",new rs(b,g)),e.push(y),s>4&&s--}return{lodPlanes:e,sizeLods:i,sigmas:n}}(n)),this._blurMaterial=function(t,e,i){const n=new Float32Array(Il),s=new Ci(0,1,0),r=new Us({name:"SphericalGaussianBlur",defines:{n:Il,CUBEUV_TEXEL_WIDTH:1/e,CUBEUV_TEXEL_HEIGHT:1/i,CUBEUV_MAX_MIP:`${t}.0`},uniforms:{envMap:{value:null},samples:{value:1},weights:{value:n},latitudinal:{value:!1},dTheta:{value:0},mipInt:{value:0},poleAxis:{value:s}},vertexShader:zl(),fragmentShader:"\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform sampler2D envMap;\n\t\t\tuniform int samples;\n\t\t\tuniform float weights[ n ];\n\t\t\tuniform bool latitudinal;\n\t\t\tuniform float dTheta;\n\t\t\tuniform float mipInt;\n\t\t\tuniform vec3 poleAxis;\n\n\t\t\t#define ENVMAP_TYPE_CUBE_UV\n\t\t\t#include <cube_uv_reflection_fragment>\n\n\t\t\tvec3 getSample( float theta, vec3 axis ) {\n\n\t\t\t\tfloat cosTheta = cos( theta );\n\t\t\t\t// Rodrigues' axis-angle rotation\n\t\t\t\tvec3 sampleDirection = vOutputDirection * cosTheta\n\t\t\t\t\t+ cross( axis, vOutputDirection ) * sin( theta )\n\t\t\t\t\t+ axis * dot( axis, vOutputDirection ) * ( 1.0 - cosTheta );\n\n\t\t\t\treturn bilinearCubeUV( envMap, sampleDirection, mipInt );\n\n\t\t\t}\n\n\t\t\tvoid main() {\n\n\t\t\t\tvec3 axis = latitudinal ? poleAxis : cross( poleAxis, vOutputDirection );\n\n\t\t\t\tif ( all( equal( axis, vec3( 0.0 ) ) ) ) {\n\n\t\t\t\t\taxis = vec3( vOutputDirection.z, 0.0, - vOutputDirection.x );\n\n\t\t\t\t}\n\n\t\t\t\taxis = normalize( axis );\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\t\t\t\tgl_FragColor.rgb += weights[ 0 ] * getSample( 0.0, axis );\n\n\t\t\t\tfor ( int i = 1; i < n; i++ ) {\n\n\t\t\t\t\tif ( i >= samples ) {\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfloat theta = dTheta * float( i );\n\t\t\t\t\tgl_FragColor.rgb += weights[ i ] * getSample( -1.0 * theta, axis );\n\t\t\t\t\tgl_FragColor.rgb += weights[ i ] * getSample( theta, axis );\n\n\t\t\t\t}\n\n\t\t\t}\n\t\t",blending:0,depthTest:!1,depthWrite:!1});return r}(n,t,e)}return n}_compileMaterial(t){const e=new Ms(this._lodPlanes[0],t);this._renderer.compile(e,Ml)}_sceneToCubeUV(t,e,i,n,s){const r=new ks(90,1,e,i),a=[1,-1,1,1,1,1],o=[1,1,1,-1,-1,-1],l=this._renderer,c=l.autoClear,h=l.toneMapping;l.getClearColor(Tl),l.toneMapping=0,l.autoClear=!1;const u=new $n({name:"PMREM.Background",side:1,depthWrite:!1,depthTest:!1}),d=new Ms(new Bs,u);let p=!1;const A=t.background;A?A.isColor&&(u.color.copy(A),t.background=null,p=!0):(u.color.copy(Tl),p=!0);for(let e=0;e<6;e++){const i=e%3;0===i?(r.up.set(0,a[e],0),r.position.set(s.x,s.y,s.z),r.lookAt(s.x+o[e],s.y,s.z)):1===i?(r.up.set(0,0,a[e]),r.position.set(s.x,s.y,s.z),r.lookAt(s.x,s.y+o[e],s.z)):(r.up.set(0,a[e],0),r.position.set(s.x,s.y,s.z),r.lookAt(s.x,s.y,s.z+o[e]));const c=this._cubeSize;kl(n,i*c,e>2?c:0,c,c),l.setRenderTarget(n),p&&l.render(d,r),l.render(t,r)}d.geometry.dispose(),d.material.dispose(),l.toneMapping=h,l.autoClear=c,t.background=A}_textureToCubeUV(t,e){const i=this._renderer,n=t.mapping===it||t.mapping===nt;n?(null===this._cubemapMaterial&&(this._cubemapMaterial=Hl()),this._cubemapMaterial.uniforms.flipEnvMap.value=!1===t.isRenderTargetTexture?-1:1):null===this._equirectMaterial&&(this._equirectMaterial=Gl());const s=n?this._cubemapMaterial:this._equirectMaterial,r=new Ms(this._lodPlanes[0],s);s.uniforms.envMap.value=t;const a=this._cubeSize;kl(e,0,0,3*a,2*a),i.setRenderTarget(e),i.render(r,Ml)}_applyPMREM(t){const e=this._renderer,i=e.autoClear;e.autoClear=!1;const n=this._lodPlanes.length;for(let e=1;e<n;e++){const i=Math.sqrt(this._sigmas[e]*this._sigmas[e]-this._sigmas[e-1]*this._sigmas[e-1]),s=Fl[(n-e-1)%Fl.length];this._blur(t,e-1,e,i,s)}e.autoClear=i}_blur(t,e,i,n,s){const r=this._pingPongRenderTarget;this._halfBlur(t,r,e,i,n,"latitudinal",s),this._halfBlur(r,t,i,i,n,"longitudinal",s)}_halfBlur(t,e,i,n,s,r,a){const o=this._renderer,l=this._blurMaterial;"latitudinal"!==r&&"longitudinal"!==r&&console.error("blur direction must be either latitudinal or longitudinal!");const c=new Ms(this._lodPlanes[n],l),h=l.uniforms,u=this._sizeLods[i]-1,d=isFinite(s)?Math.PI/(2*u):2*Math.PI/39,p=s/d,A=isFinite(s)?1+Math.floor(3*p):Il;A>Il&&console.warn(`sigmaRadians, ${s}, is too large and will clip, as it requested ${A} samples when the maximum is set to 20`);const m=[];let g=0;for(let t=0;t<Il;++t){const e=t/p,i=Math.exp(-e*e/2);m.push(i),0===t?g+=i:t<A&&(g+=2*i)}for(let t=0;t<m.length;t++)m[t]=m[t]/g;h.envMap.value=t.texture,h.samples.value=A,h.weights.value=m,h.latitudinal.value="latitudinal"===r,a&&(h.poleAxis.value=a);const{_lodMax:f}=this;h.dTheta.value=d,h.mipInt.value=f-i;const v=this._sizeLods[n];kl(e,3*v*(n>f-4?n-f+4:0),4*(this._cubeSize-v),3*v,2*v),o.setRenderTarget(e),o.render(c,Ml)}}function Ql(t,e,i){const n=new xi(t,e,i);return n.texture.mapping=rt,n.texture.name="PMREM.cubeUv",n.scissorTest=!0,n}function kl(t,e,i,n,s){t.viewport.set(e,i,n,s),t.scissor.set(e,i,n,s)}function Gl(){return new Us({name:"EquirectangularToCubeUV",uniforms:{envMap:{value:null}},vertexShader:zl(),fragmentShader:"\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform sampler2D envMap;\n\n\t\t\t#include <common>\n\n\t\t\tvoid main() {\n\n\t\t\t\tvec3 outputDirection = normalize( vOutputDirection );\n\t\t\t\tvec2 uv = equirectUv( outputDirection );\n\n\t\t\t\tgl_FragColor = vec4( texture2D ( envMap, uv ).rgb, 1.0 );\n\n\t\t\t}\n\t\t",blending:0,depthTest:!1,depthWrite:!1})}function Hl(){return new Us({name:"CubemapToCubeUV",uniforms:{envMap:{value:null},flipEnvMap:{value:-1}},vertexShader:zl(),fragmentShader:"\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tuniform float flipEnvMap;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform samplerCube envMap;\n\n\t\t\tvoid main() {\n\n\t\t\t\tgl_FragColor = textureCube( envMap, vec3( flipEnvMap * vOutputDirection.x, vOutputDirection.yz ) );\n\n\t\t\t}\n\t\t",blending:0,depthTest:!1,depthWrite:!1})}function zl(){return"\n\n\t\tprecision mediump float;\n\t\tprecision mediump int;\n\n\t\tattribute float faceIndex;\n\n\t\tvarying vec3 vOutputDirection;\n\n\t\t// RH coordinate system; PMREM face-indexing convention\n\t\tvec3 getDirection( vec2 uv, float face ) {\n\n\t\t\tuv = 2.0 * uv - 1.0;\n\n\t\t\tvec3 direction = vec3( uv, 1.0 );\n\n\t\t\tif ( face == 0.0 ) {\n\n\t\t\t\tdirection = direction.zyx; // ( 1, v, u ) pos x\n\n\t\t\t} else if ( face == 1.0 ) {\n\n\t\t\t\tdirection = direction.xzy;\n\t\t\t\tdirection.xz *= -1.0; // ( -u, 1, -v ) pos y\n\n\t\t\t} else if ( face == 2.0 ) {\n\n\t\t\t\tdirection.x *= -1.0; // ( -u, v, 1 ) pos z\n\n\t\t\t} else if ( face == 3.0 ) {\n\n\t\t\t\tdirection = direction.zyx;\n\t\t\t\tdirection.xz *= -1.0; // ( -1, v, -u ) neg x\n\n\t\t\t} else if ( face == 4.0 ) {\n\n\t\t\t\tdirection = direction.xzy;\n\t\t\t\tdirection.xy *= -1.0; // ( -u, -1, v ) neg y\n\n\t\t\t} else if ( face == 5.0 ) {\n\n\t\t\t\tdirection.z *= -1.0; // ( u, v, -1 ) neg z\n\n\t\t\t}\n\n\t\t\treturn direction;\n\n\t\t}\n\n\t\tvoid main() {\n\n\t\t\tvOutputDirection = getDirection( uv, faceIndex );\n\t\t\tgl_Position = vec4( position, 1.0 );\n\n\t\t}\n\t"}function Vl(t){let e=new WeakMap,i=null;function n(t){const i=t.target;i.removeEventListener("dispose",n);const s=e.get(i);void 0!==s&&(e.delete(i),s.dispose())}return{get:function(s){if(s&&s.isTexture){const r=s.mapping,a=r===st||304===r,o=r===it||r===nt;if(a||o){let r=e.get(s);const l=void 0!==r?r.texture.pmremVersion:0;if(s.isRenderTargetTexture&&s.pmremVersion!==l)return null===i&&(i=new Ol(t)),r=a?i.fromEquirectangular(s,r):i.fromCubemap(s,r),r.texture.pmremVersion=s.pmremVersion,e.set(s,r),r.texture;if(void 0!==r)return r.texture;{const l=s.image;return a&&l&&l.height>0||o&&l&&function(t){let e=0;const i=6;for(let n=0;n<i;n++)void 0!==t[n]&&e++;return e===i}(l)?(null===i&&(i=new Ol(t)),r=a?i.fromEquirectangular(s):i.fromCubemap(s),r.texture.pmremVersion=s.pmremVersion,e.set(s,r),s.addEventListener("dispose",n),r.texture):null}}}return s},dispose:function(){e=new WeakMap,null!==i&&(i.dispose(),i=null)}}}function Wl(t){const e={};function i(i){if(void 0!==e[i])return e[i];let n;switch(i){case"WEBGL_depth_texture":n=t.getExtension("WEBGL_depth_texture")||t.getExtension("MOZ_WEBGL_depth_texture")||t.getExtension("WEBKIT_WEBGL_depth_texture");break;case"EXT_texture_filter_anisotropic":n=t.getExtension("EXT_texture_filter_anisotropic")||t.getExtension("MOZ_EXT_texture_filter_anisotropic")||t.getExtension("WEBKIT_EXT_texture_filter_anisotropic");break;case"WEBGL_compressed_texture_s3tc":n=t.getExtension("WEBGL_compressed_texture_s3tc")||t.getExtension("MOZ_WEBGL_compressed_texture_s3tc")||t.getExtension("WEBKIT_WEBGL_compressed_texture_s3tc");break;case"WEBGL_compressed_texture_pvrtc":n=t.getExtension("WEBGL_compressed_texture_pvrtc")||t.getExtension("WEBKIT_WEBGL_compressed_texture_pvrtc");break;default:n=t.getExtension(i)}return e[i]=n,n}return{has:function(t){return null!==i(t)},init:function(){i("EXT_color_buffer_float"),i("WEBGL_clip_cull_distance"),i("OES_texture_float_linear"),i("EXT_color_buffer_half_float"),i("WEBGL_multisampled_render_to_texture"),i("WEBGL_render_shared_exponent")},get:function(t){const e=i(t);return null===e&&ri("THREE.WebGLRenderer: "+t+" extension not supported."),e}}}function ql(t,e,i,n){const s={},r=new WeakMap;function a(t){const o=t.target;null!==o.index&&e.remove(o.index);for(const t in o.attributes)e.remove(o.attributes[t]);o.removeEventListener("dispose",a),delete s[o.id];const l=r.get(o);l&&(e.remove(l),r.delete(o)),n.releaseStatesOfGeometry(o),!0===o.isInstancedBufferGeometry&&delete o._maxInstanceCount,i.memory.geometries--}function o(t){const i=[],n=t.index,s=t.attributes.position;let a=0;if(null!==n){const t=n.array;a=n.version;for(let e=0,n=t.length;e<n;e+=3){const n=t[e+0],s=t[e+1],r=t[e+2];i.push(n,s,s,r,r,n)}}else{if(void 0===s)return;{const t=s.array;a=s.version;for(let e=0,n=t.length/3-1;e<n;e+=3){const 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0!==u&&u.texture.dispose();const d=void 0!==a.morphAttributes.position,p=void 0!==a.morphAttributes.normal,A=void 0!==a.morphAttributes.color,m=a.morphAttributes.position||[],g=a.morphAttributes.normal||[],f=a.morphAttributes.color||[];let v=0;!0===d&&(v=1),!0===p&&(v=2),!0===A&&(v=3);let b=a.attributes.position.count*v,y=1;b>e.maxTextureSize&&(y=Math.ceil(b/e.maxTextureSize),b=e.maxTextureSize);const x=new Float32Array(b*y*4*h),_=new _i(x,b,y,h);_.type=xt,_.needsUpdate=!0;const E=4*v;for(let C=0;C<h;C++){const w=m[C],I=g[C],M=f[C],T=b*y*4*C;for(let B=0;B<w.count;B++){const R=B*E;!0===d&&(s.fromBufferAttribute(w,B),x[T+R+0]=s.x,x[T+R+1]=s.y,x[T+R+2]=s.z,x[T+R+3]=0),!0===p&&(s.fromBufferAttribute(I,B),x[T+R+4]=s.x,x[T+R+5]=s.y,x[T+R+6]=s.z,x[T+R+7]=0),!0===A&&(s.fromBufferAttribute(M,B),x[T+R+8]=s.x,x[T+R+9]=s.y,x[T+R+10]=s.z,x[T+R+11]=4===M.itemSize?s.w:1)}}function S(){_.dispose(),n.delete(a),a.removeEventListener("dispose",S)}u={count:h,texture:_,size:new 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USE_NORMALMAP":"",i.normalMapObjectSpace?"#define USE_NORMALMAP_OBJECTSPACE":"",i.normalMapTangentSpace?"#define USE_NORMALMAP_TANGENTSPACE":"",i.emissiveMap?"#define USE_EMISSIVEMAP":"",i.anisotropy?"#define USE_ANISOTROPY":"",i.anisotropyMap?"#define USE_ANISOTROPYMAP":"",i.clearcoat?"#define USE_CLEARCOAT":"",i.clearcoatMap?"#define USE_CLEARCOATMAP":"",i.clearcoatRoughnessMap?"#define USE_CLEARCOAT_ROUGHNESSMAP":"",i.clearcoatNormalMap?"#define USE_CLEARCOAT_NORMALMAP":"",i.dispersion?"#define USE_DISPERSION":"",i.iridescence?"#define USE_IRIDESCENCE":"",i.iridescenceMap?"#define USE_IRIDESCENCEMAP":"",i.iridescenceThicknessMap?"#define USE_IRIDESCENCE_THICKNESSMAP":"",i.specularMap?"#define USE_SPECULARMAP":"",i.specularColorMap?"#define USE_SPECULAR_COLORMAP":"",i.specularIntensityMap?"#define USE_SPECULAR_INTENSITYMAP":"",i.roughnessMap?"#define USE_ROUGHNESSMAP":"",i.metalnessMap?"#define USE_METALNESSMAP":"",i.alphaMap?"#define USE_ALPHAMAP":"",i.alphaTest?"#define USE_ALPHATEST":"",i.alphaHash?"#define USE_ALPHAHASH":"",i.sheen?"#define USE_SHEEN":"",i.sheenColorMap?"#define USE_SHEEN_COLORMAP":"",i.sheenRoughnessMap?"#define USE_SHEEN_ROUGHNESSMAP":"",i.transmission?"#define USE_TRANSMISSION":"",i.transmissionMap?"#define USE_TRANSMISSIONMAP":"",i.thicknessMap?"#define USE_THICKNESSMAP":"",i.vertexTangents&&!1===i.flatShading?"#define USE_TANGENT":"",i.vertexColors||i.instancingColor||i.batchingColor?"#define USE_COLOR":"",i.vertexAlphas?"#define USE_COLOR_ALPHA":"",i.vertexUv1s?"#define USE_UV1":"",i.vertexUv2s?"#define USE_UV2":"",i.vertexUv3s?"#define USE_UV3":"",i.pointsUvs?"#define USE_POINTS_UV":"",i.gradientMap?"#define USE_GRADIENTMAP":"",i.flatShading?"#define FLAT_SHADED":"",i.doubleSided?"#define DOUBLE_SIDED":"",i.flipSided?"#define FLIP_SIDED":"",i.shadowMapEnabled?"#define USE_SHADOWMAP":"",i.shadowMapEnabled?"#define "+l:"",i.premultipliedAlpha?"#define PREMULTIPLIED_ALPHA":"",i.numLightProbes>0?"#define USE_LIGHT_PROBES":"",i.decodeVideoTexture?"#define DECODE_VIDEO_TEXTURE":"",i.decodeVideoTextureEmissive?"#define DECODE_VIDEO_TEXTURE_EMISSIVE":"",i.logarithmicDepthBuffer?"#define USE_LOGDEPTHBUF":"",i.reverseDepthBuffer?"#define USE_REVERSEDEPTHBUF":"","uniform mat4 viewMatrix;","uniform vec3 cameraPosition;","uniform bool isOrthographic;",0!==i.toneMapping?"#define TONE_MAPPING":"",0!==i.toneMapping?Al.tonemapping_pars_fragment:"",0!==i.toneMapping?oh("toneMapping",i.toneMapping):"",i.dithering?"#define DITHERING":"",i.opaque?"#define OPAQUE":"",Al.colorspace_pars_fragment,ah("linearToOutputTexel",i.outputColorSpace),ch(),i.useDepthPacking?"#define DEPTH_PACKING "+i.depthPacking:"","\n"].filter(hh).join("\n")),a=Ah(a),a=uh(a,i),a=dh(a,i),o=Ah(o),o=uh(o,i),o=dh(o,i),a=vh(a),o=vh(o),!0!==i.isRawShaderMaterial&&(v="#version 300 es\n",g=[p,"#define attribute in","#define varying out","#define texture2D texture"].join("\n")+"\n"+g,f=["#define varying 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"+s.getError()+" - VALIDATE_STATUS "+s.getProgramParameter(m,s.VALIDATE_STATUS)+"\n\nMaterial Name: "+e.name+"\nMaterial Type: "+e.type+"\n\nProgram Info Log: "+i+"\n"+t+"\n"+n)}else""!==i?console.warn("THREE.WebGLProgram: Program Info Log:",i):""!==n&&""!==r||(o=!1);o&&(e.diagnostics={runnable:a,programLog:i,vertexShader:{log:n,prefix:g},fragmentShader:{log:r,prefix:f}})}s.deleteShader(x),s.deleteShader(_),S=new eh(s,m),C=function(t,e){const i={},n=t.getProgramParameter(e,t.ACTIVE_ATTRIBUTES);for(let s=0;s<n;s++){const n=t.getActiveAttrib(e,s),r=n.name;let a=1;n.type===t.FLOAT_MAT2&&(a=2),n.type===t.FLOAT_MAT3&&(a=3),n.type===t.FLOAT_MAT4&&(a=4),i[r]={type:n.type,location:t.getAttribLocation(e,r),locationSize:a}}return i}(s,m)}let S,C;s.attachShader(m,x),s.attachShader(m,_),void 0!==i.index0AttributeName?s.bindAttribLocation(m,0,i.index0AttributeName):!0===i.morphTargets&&s.bindAttribLocation(m,0,"position"),s.linkProgram(m),this.getUniforms=function(){return void 0===S&&E(this),S},this.getAttributes=function(){return void 0===C&&E(this),C};let w=!1===i.rendererExtensionParallelShaderCompile;return this.isReady=function(){return!1===w&&(w=s.getProgramParameter(m,37297)),w},this.destroy=function(){n.releaseStatesOfProgram(this),s.deleteProgram(m),this.program=void 0},this.type=i.shaderType,this.name=i.shaderName,this.id=nh++,this.cacheKey=e,this.usedTimes=1,this.program=m,this.vertexShader=x,this.fragmentShader=_,this}let _h=0;class Eh{constructor(){this.shaderCache=new Map,this.materialCache=new Map}update(t){const e=t.vertexShader,i=t.fragmentShader,n=this._getShaderStage(e),s=this._getShaderStage(i),r=this._getShaderCacheForMaterial(t);return!1===r.has(n)&&(r.add(n),n.usedTimes++),!1===r.has(s)&&(r.add(s),s.usedTimes++),this}remove(t){const e=this.materialCache.get(t);for(const t of e)t.usedTimes--,0===t.usedTimes&&this.shaderCache.delete(t.code);return this.materialCache.delete(t),this}getVertexShaderID(t){return this._getShaderStage(t.vertexShader).id}getFragmentShaderID(t){return this._getShaderStage(t.fragmentShader).id}dispose(){this.shaderCache.clear(),this.materialCache.clear()}_getShaderCacheForMaterial(t){const e=this.materialCache;let i=e.get(t);return void 0===i&&(i=new Set,e.set(t,i)),i}_getShaderStage(t){const e=this.shaderCache;let i=e.get(t);return void 0===i&&(i=new Sh(t),e.set(t,i)),i}}class Sh{constructor(t){this.id=_h++,this.code=t,this.usedTimes=0}}function Ch(t,e,i,n,s,r,a){const o=new pn,l=new Eh,c=new Set,h=[],u=s.logarithmicDepthBuffer,d=s.vertexTextures;let p=s.precision;const A={MeshDepthMaterial:"depth",MeshDistanceMaterial:"distanceRGBA",MeshNormalMaterial:"normal",MeshBasicMaterial:"basic",MeshLambertMaterial:"lambert",MeshPhongMaterial:"phong",MeshToonMaterial:"toon",MeshStandardMaterial:"physical",MeshPhysicalMaterial:"physical",MeshMatcapMaterial:"matcap",LineBasicMaterial:"basic",LineDashedMaterial:"dashed",PointsMaterial:"points",ShadowMaterial:"shadow",SpriteMaterial:"sprite"};function m(t){return c.add(t),0===t?"uv":`uv${t}`}return{getParameters:function(r,o,h,g,f){const v=g.fog,b=f.geometry,y=r.isMeshStandardMaterial?g.environment:null,x=(r.isMeshStandardMaterial?i:e).get(r.envMap||y),_=x&&x.mapping===rt?x.image.height:null,E=A[r.type];null!==r.precision&&(p=s.getMaxPrecision(r.precision),p!==r.precision&&console.warn("THREE.WebGLProgram.getParameters:",r.precision,"not supported, using",p,"instead."));const S=b.morphAttributes.position||b.morphAttributes.normal||b.morphAttributes.color,C=void 0!==S?S.length:0;let w,I,M,T,B=0;if(void 0!==b.morphAttributes.position&&(B=1),void 0!==b.morphAttributes.normal&&(B=2),void 0!==b.morphAttributes.color&&(B=3),E){const t=gl[E];w=t.vertexShader,I=t.fragmentShader}else w=r.vertexShader,I=r.fragmentShader,l.update(r),M=l.getVertexShaderID(r),T=l.getFragmentShaderID(r);const R=t.getRenderTarget(),D=t.state.buffers.depth.getReversed(),L=!0===f.isInstancedMesh,P=!0===f.isBatchedMesh,U=!!r.map,F=!!r.matcap,N=!!x,O=!!r.aoMap,Q=!!r.lightMap,k=!!r.bumpMap,G=!!r.normalMap,H=!!r.displacementMap,z=!!r.emissiveMap,V=!!r.metalnessMap,W=!!r.roughnessMap,q=r.anisotropy>0,j=r.clearcoat>0,X=r.dispersion>0,Y=r.iridescence>0,K=r.sheen>0,J=r.transmission>0,$=q&&!!r.anisotropyMap,Z=j&&!!r.clearcoatMap,tt=j&&!!r.clearcoatNormalMap,et=j&&!!r.clearcoatRoughnessMap,it=Y&&!!r.iridescenceMap,nt=Y&&!!r.iridescenceThicknessMap,st=K&&!!r.sheenColorMap,at=K&&!!r.sheenRoughnessMap,ot=!!r.specularMap,lt=!!r.specularColorMap,ct=!!r.specularIntensityMap,ht=J&&!!r.transmissionMap,ut=J&&!!r.thicknessMap,dt=!!r.gradientMap,pt=!!r.alphaMap,At=r.alphaTest>0,mt=!!r.alphaHash,gt=!!r.extensions;let ft=0;r.toneMapped&&(null!==R&&!0!==R.isXRRenderTarget||(ft=t.toneMapping));const vt={shaderID:E,shaderType:r.type,shaderName:r.name,vertexShader:w,fragmentShader:I,defines:r.defines,customVertexShaderID:M,customFragmentShaderID:T,isRawShaderMaterial:!0===r.isRawShaderMaterial,glslVersion:r.glslVersion,precision:p,batching:P,batchingColor:P&&null!==f._colorsTexture,instancing:L,instancingColor:L&&null!==f.instanceColor,instancingMorph:L&&null!==f.morphTexture,supportsVertexTextures:d,outputColorSpace:null===R?t.outputColorSpace:!0===R.isXRRenderTarget?R.texture.colorSpace:Se,alphaToCoverage:!!r.alphaToCoverage,map:U,matcap:F,envMap:N,envMapMode:N&&x.mapping,envMapCubeUVHeight:_,aoMap:O,lightMap:Q,bumpMap:k,normalMap:G,displacementMap:d&&H,emissiveMap:z,normalMapObjectSpace:G&&1===r.normalMapType,normalMapTangentSpace:G&&0===r.normalMapType,metalnessMap:V,roughnessMap:W,anisotropy:q,anisotropyMap:$,clearcoat:j,clearcoatMap:Z,clearcoatNormalMap:tt,clearcoatRoughnessMap:et,dispersion:X,iridescence:Y,iridescenceMap:it,iridescenceThicknessMap:nt,sheen:K,sheenColorMap:st,sheenRoughnessMap:at,specularMap:ot,specularColorMap:lt,specularIntensityMap:ct,transmission:J,transmissionMap:ht,thicknessMap:ut,gradientMap:dt,opaque:!1===r.transparent&&1===r.blending&&!1===r.alphaToCoverage,alphaMap:pt,alphaTest:At,alphaHash:mt,combine:r.combine,mapUv:U&&m(r.map.channel),aoMapUv:O&&m(r.aoMap.channel),lightMapUv:Q&&m(r.lightMap.channel),bumpMapUv:k&&m(r.bumpMap.channel),normalMapUv:G&&m(r.normalMap.channel),displacementMapUv:H&&m(r.displacementMap.channel),emissiveMapUv:z&&m(r.emissiveMap.channel),metalnessMapUv:V&&m(r.metalnessMap.channel),roughnessMapUv:W&&m(r.roughnessMap.channel),anisotropyMapUv:$&&m(r.anisotropyMap.channel),clearcoatMapUv:Z&&m(r.clearcoatMap.channel),clearcoatNormalMapUv:tt&&m(r.clearcoatNormalMap.channel),clearcoatRoughnessMapUv:et&&m(r.clearcoatRoughnessMap.channel),iridescenceMapUv:it&&m(r.iridescenceMap.channel),iridescenceThicknessMapUv:nt&&m(r.iridescenceThicknessMap.channel),sheenColorMapUv:st&&m(r.sheenColorMap.channel),sheenRoughnessMapUv:at&&m(r.sheenRoughnessMap.channel),specularMapUv:ot&&m(r.specularMap.channel),specularColorMapUv:lt&&m(r.specularColorMap.channel),specularIntensityMapUv:ct&&m(r.specularIntensityMap.channel),transmissionMapUv:ht&&m(r.transmissionMap.channel),thicknessMapUv:ut&&m(r.thicknessMap.channel),alphaMapUv:pt&&m(r.alphaMap.channel),vertexTangents:!!b.attributes.tangent&&(G||q),vertexColors:r.vertexColors,vertexAlphas:!0===r.vertexColors&&!!b.attributes.color&&4===b.attributes.color.itemSize,pointsUvs:!0===f.isPoints&&!!b.attributes.uv&&(U||pt),fog:!!v,useFog:!0===r.fog,fogExp2:!!v&&v.isFogExp2,flatShading:!0===r.flatShading,sizeAttenuation:!0===r.sizeAttenuation,logarithmicDepthBuffer:u,reverseDepthBuffer:D,skinning:!0===f.isSkinnedMesh,morphTargets:void 0!==b.morphAttributes.position,morphNormals:void 0!==b.morphAttributes.normal,morphColors:void 0!==b.morphAttributes.color,morphTargetsCount:C,morphTextureStride:B,numDirLights:o.directional.length,numPointLights:o.point.length,numSpotLights:o.spot.length,numSpotLightMaps:o.spotLightMap.length,numRectAreaLights:o.rectArea.length,numHemiLights:o.hemi.length,numDirLightShadows:o.directionalShadowMap.length,numPointLightShadows:o.pointShadowMap.length,numSpotLightShadows:o.spotShadowMap.length,numSpotLightShadowsWithMaps:o.numSpotLightShadowsWithMaps,numLightProbes:o.numLightProbes,numClippingPlanes:a.numPlanes,numClipIntersection:a.numIntersection,dithering:r.dithering,shadowMapEnabled:t.shadowMap.enabled&&h.length>0,shadowMapType:t.shadowMap.type,toneMapping:ft,decodeVideoTexture:U&&!0===r.map.isVideoTexture&&ci.getTransfer(r.map.colorSpace)===we,decodeVideoTextureEmissive:z&&!0===r.emissiveMap.isVideoTexture&&ci.getTransfer(r.emissiveMap.colorSpace)===we,premultipliedAlpha:r.premultipliedAlpha,doubleSided:2===r.side,flipSided:1===r.side,useDepthPacking:r.depthPacking>=0,depthPacking:r.depthPacking||0,index0AttributeName:r.index0AttributeName,extensionClipCullDistance:gt&&!0===r.extensions.clipCullDistance&&n.has("WEBGL_clip_cull_distance"),extensionMultiDraw:(gt&&!0===r.extensions.multiDraw||P)&&n.has("WEBGL_multi_draw"),rendererExtensionParallelShaderCompile:n.has("KHR_parallel_shader_compile"),customProgramCacheKey:r.customProgramCacheKey()};return vt.vertexUv1s=c.has(1),vt.vertexUv2s=c.has(2),vt.vertexUv3s=c.has(3),c.clear(),vt},getProgramCacheKey:function(e){const i=[];if(e.shaderID?i.push(e.shaderID):(i.push(e.customVertexShaderID),i.push(e.customFragmentShaderID)),void 0!==e.defines)for(const t in e.defines)i.push(t),i.push(e.defines[t]);return!1===e.isRawShaderMaterial&&(!function(t,e){t.push(e.precision),t.push(e.outputColorSpace),t.push(e.envMapMode),t.push(e.envMapCubeUVHeight),t.push(e.mapUv),t.push(e.alphaMapUv),t.push(e.lightMapUv),t.push(e.aoMapUv),t.push(e.bumpMapUv),t.push(e.normalMapUv),t.push(e.displacementMapUv),t.push(e.emissiveMapUv),t.push(e.metalnessMapUv),t.push(e.roughnessMapUv),t.push(e.anisotropyMapUv),t.push(e.clearcoatMapUv),t.push(e.clearcoatNormalMapUv),t.push(e.clearcoatRoughnessMapUv),t.push(e.iridescenceMapUv),t.push(e.iridescenceThicknessMapUv),t.push(e.sheenColorMapUv),t.push(e.sheenRoughnessMapUv),t.push(e.specularMapUv),t.push(e.specularColorMapUv),t.push(e.specularIntensityMapUv),t.push(e.transmissionMapUv),t.push(e.thicknessMapUv),t.push(e.combine),t.push(e.fogExp2),t.push(e.sizeAttenuation),t.push(e.morphTargetsCount),t.push(e.morphAttributeCount),t.push(e.numDirLights),t.push(e.numPointLights),t.push(e.numSpotLights),t.push(e.numSpotLightMaps),t.push(e.numHemiLights),t.push(e.numRectAreaLights),t.push(e.numDirLightShadows),t.push(e.numPointLightShadows),t.push(e.numSpotLightShadows),t.push(e.numSpotLightShadowsWithMaps),t.push(e.numLightProbes),t.push(e.shadowMapType),t.push(e.toneMapping),t.push(e.numClippingPlanes),t.push(e.numClipIntersection),t.push(e.depthPacking)}(i,e),function(t,e){o.disableAll(),e.supportsVertexTextures&&o.enable(0);e.instancing&&o.enable(1);e.instancingColor&&o.enable(2);e.instancingMorph&&o.enable(3);e.matcap&&o.enable(4);e.envMap&&o.enable(5);e.normalMapObjectSpace&&o.enable(6);e.normalMapTangentSpace&&o.enable(7);e.clearcoat&&o.enable(8);e.iridescence&&o.enable(9);e.alphaTest&&o.enable(10);e.vertexColors&&o.enable(11);e.vertexAlphas&&o.enable(12);e.vertexUv1s&&o.enable(13);e.vertexUv2s&&o.enable(14);e.vertexUv3s&&o.enable(15);e.vertexTangents&&o.enable(16);e.anisotropy&&o.enable(17);e.alphaHash&&o.enable(18);e.batching&&o.enable(19);e.dispersion&&o.enable(20);e.batchingColor&&o.enable(21);t.push(o.mask),o.disableAll(),e.fog&&o.enable(0);e.useFog&&o.enable(1);e.flatShading&&o.enable(2);e.logarithmicDepthBuffer&&o.enable(3);e.reverseDepthBuffer&&o.enable(4);e.skinning&&o.enable(5);e.morphTargets&&o.enable(6);e.morphNormals&&o.enable(7);e.morphColors&&o.enable(8);e.premultipliedAlpha&&o.enable(9);e.shadowMapEnabled&&o.enable(10);e.doubleSided&&o.enable(11);e.flipSided&&o.enable(12);e.useDepthPacking&&o.enable(13);e.dithering&&o.enable(14);e.transmission&&o.enable(15);e.sheen&&o.enable(16);e.opaque&&o.enable(17);e.pointsUvs&&o.enable(18);e.decodeVideoTexture&&o.enable(19);e.decodeVideoTextureEmissive&&o.enable(20);e.alphaToCoverage&&o.enable(21);t.push(o.mask)}(i,e),i.push(t.outputColorSpace)),i.push(e.customProgramCacheKey),i.join()},getUniforms:function(t){const e=A[t.type];let i;if(e){const t=gl[e];i=Ps.clone(t.uniforms)}else i=t.uniforms;return i},acquireProgram:function(e,i){let n;for(let t=0,e=h.length;t<e;t++){const e=h[t];if(e.cacheKey===i){n=e,++n.usedTimes;break}}return void 0===n&&(n=new xh(t,i,e,r),h.push(n)),n},releaseProgram:function(t){if(0==--t.usedTimes){const e=h.indexOf(t);h[e]=h[h.length-1],h.pop(),t.destroy()}},releaseShaderCache:function(t){l.remove(t)},programs:h,dispose:function(){l.dispose()}}}function wh(){let t=new WeakMap;return{has:function(e){return t.has(e)},get:function(e){let i=t.get(e);return void 0===i&&(i={},t.set(e,i)),i},remove:function(e){t.delete(e)},update:function(e,i,n){t.get(e)[i]=n},dispose:function(){t=new WeakMap}}}function Ih(t,e){return t.groupOrder!==e.groupOrder?t.groupOrder-e.groupOrder:t.renderOrder!==e.renderOrder?t.renderOrder-e.renderOrder:t.material.id!==e.material.id?t.material.id-e.material.id:t.z!==e.z?t.z-e.z:t.id-e.id}function Mh(t,e){return t.groupOrder!==e.groupOrder?t.groupOrder-e.groupOrder:t.renderOrder!==e.renderOrder?t.renderOrder-e.renderOrder:t.z!==e.z?e.z-t.z:t.id-e.id}function Th(){const t=[];let e=0;const i=[],n=[],s=[];function r(i,n,s,r,a,o){let l=t[e];return void 0===l?(l={id:i.id,object:i,geometry:n,material:s,groupOrder:r,renderOrder:i.renderOrder,z:a,group:o},t[e]=l):(l.id=i.id,l.object=i,l.geometry=n,l.material=s,l.groupOrder=r,l.renderOrder=i.renderOrder,l.z=a,l.group=o),e++,l}return{opaque:i,transmissive:n,transparent:s,init:function(){e=0,i.length=0,n.length=0,s.length=0},push:function(t,e,a,o,l,c){const h=r(t,e,a,o,l,c);a.transmission>0?n.push(h):!0===a.transparent?s.push(h):i.push(h)},unshift:function(t,e,a,o,l,c){const h=r(t,e,a,o,l,c);a.transmission>0?n.unshift(h):!0===a.transparent?s.unshift(h):i.unshift(h)},finish:function(){for(let i=e,n=t.length;i<n;i++){const e=t[i];if(null===e.id)break;e.id=null,e.object=null,e.geometry=null,e.material=null,e.group=null}},sort:function(t,e){i.length>1&&i.sort(t||Ih),n.length>1&&n.sort(e||Mh),s.length>1&&s.sort(e||Mh)}}}function Bh(){let t=new WeakMap;return{get:function(e,i){const n=t.get(e);let s;return void 0===n?(s=new Th,t.set(e,[s])):i>=n.length?(s=new Th,n.push(s)):s=n[i],s},dispose:function(){t=new WeakMap}}}function Rh(){const t={};return{get:function(e){if(void 0!==t[e.id])return t[e.id];let i;switch(e.type){case"DirectionalLight":i={direction:new Ci,color:new Xn};break;case"SpotLight":i={position:new Ci,direction:new Ci,color:new Xn,distance:0,coneCos:0,penumbraCos:0,decay:0};break;case"PointLight":i={position:new Ci,color:new Xn,distance:0,decay:0};break;case"HemisphereLight":i={direction:new Ci,skyColor:new Xn,groundColor:new Xn};break;case"RectAreaLight":i={color:new Xn,position:new Ci,halfWidth:new Ci,halfHeight:new Ci}}return t[e.id]=i,i}}}let Dh=0;function Lh(t,e){return(e.castShadow?2:0)-(t.castShadow?2:0)+(e.map?1:0)-(t.map?1:0)}function Ph(t){const e=new Rh,i=function(){const t={};return{get:function(e){if(void 0!==t[e.id])return t[e.id];let i;switch(e.type){case"DirectionalLight":case"SpotLight":i={shadowIntensity:1,shadowBias:0,shadowNormalBias:0,shadowRadius:1,shadowMapSize:new $e};break;case"PointLight":i={shadowIntensity:1,shadowBias:0,shadowNormalBias:0,shadowRadius:1,shadowMapSize:new $e,shadowCameraNear:1,shadowCameraFar:1e3}}return t[e.id]=i,i}}}(),n={version:0,hash:{directionalLength:-1,pointLength:-1,spotLength:-1,rectAreaLength:-1,hemiLength:-1,numDirectionalShadows:-1,numPointShadows:-1,numSpotShadows:-1,numSpotMaps:-1,numLightProbes:-1},ambient:[0,0,0],probe:[],directional:[],directionalShadow:[],directionalShadowMap:[],directionalShadowMatrix:[],spot:[],spotLightMap:[],spotShadow:[],spotShadowMap:[],spotLightMatrix:[],rectArea:[],rectAreaLTC1:null,rectAreaLTC2:null,point:[],pointShadow:[],pointShadowMap:[],pointShadowMatrix:[],hemi:[],numSpotLightShadowsWithMaps:0,numLightProbes:0};for(let t=0;t<9;t++)n.probe.push(new Ci);const s=new Ci,r=new en,a=new en;return{setup:function(s){let r=0,a=0,o=0;for(let t=0;t<9;t++)n.probe[t].set(0,0,0);let l=0,c=0,h=0,u=0,d=0,p=0,A=0,m=0,g=0,f=0,v=0;s.sort(Lh);for(let t=0,b=s.length;t<b;t++){const b=s[t],y=b.color,x=b.intensity,_=b.distance,E=b.shadow&&b.shadow.map?b.shadow.map.texture:null;if(b.isAmbientLight)r+=y.r*x,a+=y.g*x,o+=y.b*x;else if(b.isLightProbe){for(let t=0;t<9;t++)n.probe[t].addScaledVector(b.sh.coefficients[t],x);v++}else if(b.isDirectionalLight){const t=e.get(b);if(t.color.copy(b.color).multiplyScalar(b.intensity),b.castShadow){const t=b.shadow,e=i.get(b);e.shadowIntensity=t.intensity,e.shadowBias=t.bias,e.shadowNormalBias=t.normalBias,e.shadowRadius=t.radius,e.shadowMapSize=t.mapSize,n.directionalShadow[l]=e,n.directionalShadowMap[l]=E,n.directionalShadowMatrix[l]=b.shadow.matrix,p++}n.directional[l]=t,l++}else if(b.isSpotLight){const t=e.get(b);t.position.setFromMatrixPosition(b.matrixWorld),t.color.copy(y).multiplyScalar(x),t.distance=_,t.coneCos=Math.cos(b.angle),t.penumbraCos=Math.cos(b.angle*(1-b.penumbra)),t.decay=b.decay,n.spot[h]=t;const s=b.shadow;if(b.map&&(n.spotLightMap[g]=b.map,g++,s.updateMatrices(b),b.castShadow&&f++),n.spotLightMatrix[h]=s.matrix,b.castShadow){const t=i.get(b);t.shadowIntensity=s.intensity,t.shadowBias=s.bias,t.shadowNormalBias=s.normalBias,t.shadowRadius=s.radius,t.shadowMapSize=s.mapSize,n.spotShadow[h]=t,n.spotShadowMap[h]=E,m++}h++}else if(b.isRectAreaLight){const t=e.get(b);t.color.copy(y).multiplyScalar(x),t.halfWidth.set(.5*b.width,0,0),t.halfHeight.set(0,.5*b.height,0),n.rectArea[u]=t,u++}else if(b.isPointLight){const t=e.get(b);if(t.color.copy(b.color).multiplyScalar(b.intensity),t.distance=b.distance,t.decay=b.decay,b.castShadow){const t=b.shadow,e=i.get(b);e.shadowIntensity=t.intensity,e.shadowBias=t.bias,e.shadowNormalBias=t.normalBias,e.shadowRadius=t.radius,e.shadowMapSize=t.mapSize,e.shadowCameraNear=t.camera.near,e.shadowCameraFar=t.camera.far,n.pointShadow[c]=e,n.pointShadowMap[c]=E,n.pointShadowMatrix[c]=b.shadow.matrix,A++}n.point[c]=t,c++}else if(b.isHemisphereLight){const t=e.get(b);t.skyColor.copy(b.color).multiplyScalar(x),t.groundColor.copy(b.groundColor).multiplyScalar(x),n.hemi[d]=t,d++}}u>0&&(!0===t.has("OES_texture_float_linear")?(n.rectAreaLTC1=ml.LTC_FLOAT_1,n.rectAreaLTC2=ml.LTC_FLOAT_2):(n.rectAreaLTC1=ml.LTC_HALF_1,n.rectAreaLTC2=ml.LTC_HALF_2)),n.ambient[0]=r,n.ambient[1]=a,n.ambient[2]=o;const b=n.hash;b.directionalLength===l&&b.pointLength===c&&b.spotLength===h&&b.rectAreaLength===u&&b.hemiLength===d&&b.numDirectionalShadows===p&&b.numPointShadows===A&&b.numSpotShadows===m&&b.numSpotMaps===g&&b.numLightProbes===v||(n.directional.length=l,n.spot.length=h,n.rectArea.length=u,n.point.length=c,n.hemi.length=d,n.directionalShadow.length=p,n.directionalShadowMap.length=p,n.pointShadow.length=A,n.pointShadowMap.length=A,n.spotShadow.length=m,n.spotShadowMap.length=m,n.directionalShadowMatrix.length=p,n.pointShadowMatrix.length=A,n.spotLightMatrix.length=m+g-f,n.spotLightMap.length=g,n.numSpotLightShadowsWithMaps=f,n.numLightProbes=v,b.directionalLength=l,b.pointLength=c,b.spotLength=h,b.rectAreaLength=u,b.hemiLength=d,b.numDirectionalShadows=p,b.numPointShadows=A,b.numSpotShadows=m,b.numSpotMaps=g,b.numLightProbes=v,n.version=Dh++)},setupView:function(t,e){let i=0,o=0,l=0,c=0,h=0;const u=e.matrixWorldInverse;for(let e=0,d=t.length;e<d;e++){const d=t[e];if(d.isDirectionalLight){const t=n.directional[i];t.direction.setFromMatrixPosition(d.matrixWorld),s.setFromMatrixPosition(d.target.matrixWorld),t.direction.sub(s),t.direction.transformDirection(u),i++}else if(d.isSpotLight){const t=n.spot[l];t.position.setFromMatrixPosition(d.matrixWorld),t.position.applyMatrix4(u),t.direction.setFromMatrixPosition(d.matrixWorld),s.setFromMatrixPosition(d.target.matrixWorld),t.direction.sub(s),t.direction.transformDirection(u),l++}else if(d.isRectAreaLight){const t=n.rectArea[c];t.position.setFromMatrixPosition(d.matrixWorld),t.position.applyMatrix4(u),a.identity(),r.copy(d.matrixWorld),r.premultiply(u),a.extractRotation(r),t.halfWidth.set(.5*d.width,0,0),t.halfHeight.set(0,.5*d.height,0),t.halfWidth.applyMatrix4(a),t.halfHeight.applyMatrix4(a),c++}else if(d.isPointLight){const t=n.point[o];t.position.setFromMatrixPosition(d.matrixWorld),t.position.applyMatrix4(u),o++}else if(d.isHemisphereLight){const t=n.hemi[h];t.direction.setFromMatrixPosition(d.matrixWorld),t.direction.transformDirection(u),h++}}},state:n}}function Uh(t){const e=new Ph(t),i=[],n=[];const s={lightsArray:i,shadowsArray:n,camera:null,lights:e,transmissionRenderTarget:{}};return{init:function(t){s.camera=t,i.length=0,n.length=0},state:s,setupLights:function(){e.setup(i)},setupLightsView:function(t){e.setupView(i,t)},pushLight:function(t){i.push(t)},pushShadow:function(t){n.push(t)}}}function Fh(t){let e=new WeakMap;return{get:function(i,n=0){const s=e.get(i);let r;return void 0===s?(r=new Uh(t),e.set(i,[r])):n>=s.length?(r=new Uh(t),s.push(r)):r=s[n],r},dispose:function(){e=new WeakMap}}}function Nh(t,e,i){let n=new Mr;const s=new $e,r=new $e,a=new bi,o=new Za({depthPacking:3201}),l=new to,c={},h=i.maxTextureSize,u={[C]:1,[w]:0,[I]:2},d=new Us({defines:{VSM_SAMPLES:8},uniforms:{shadow_pass:{value:null},resolution:{value:new $e},radius:{value:4}},vertexShader:"void main() {\n\tgl_Position = vec4( position, 1.0 );\n}",fragmentShader:"uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\n#include <packing>\nvoid main() {\n\tconst float samples = float( VSM_SAMPLES );\n\tfloat mean = 0.0;\n\tfloat squared_mean = 0.0;\n\tfloat uvStride = samples <= 1.0 ? 0.0 : 2.0 / ( samples - 1.0 );\n\tfloat uvStart = samples <= 1.0 ? 0.0 : - 1.0;\n\tfor ( float i = 0.0; i < samples; i ++ ) {\n\t\tfloat uvOffset = uvStart + i * uvStride;\n\t\t#ifdef HORIZONTAL_PASS\n\t\t\tvec2 distribution = unpackRGBATo2Half( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( uvOffset, 0.0 ) * radius ) / resolution ) );\n\t\t\tmean += distribution.x;\n\t\t\tsquared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n\t\t#else\n\t\t\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, uvOffset ) * radius ) / resolution ) );\n\t\t\tmean += depth;\n\t\t\tsquared_mean += depth * depth;\n\t\t#endif\n\t}\n\tmean = mean / samples;\n\tsquared_mean = squared_mean / samples;\n\tfloat std_dev = sqrt( squared_mean - mean * mean );\n\tgl_FragColor = pack2HalfToRGBA( vec2( mean, std_dev ) );\n}"}),p=d.clone();p.defines.HORIZONTAL_PASS=1;const A=new gs;A.setAttribute("position",new rs(new Float32Array([-1,-1,.5,3,-1,.5,-1,3,.5]),3));const m=new Ms(A,d),g=this;this.enabled=!1,this.autoUpdate=!0,this.needsUpdate=!1,this.type=1;let f=this.type;function v(i,n){const r=e.update(m);d.defines.VSM_SAMPLES!==i.blurSamples&&(d.defines.VSM_SAMPLES=i.blurSamples,p.defines.VSM_SAMPLES=i.blurSamples,d.needsUpdate=!0,p.needsUpdate=!0),null===i.mapPass&&(i.mapPass=new xi(s.x,s.y)),d.uniforms.shadow_pass.value=i.map.texture,d.uniforms.resolution.value=i.mapSize,d.uniforms.radius.value=i.radius,t.setRenderTarget(i.mapPass),t.clear(),t.renderBufferDirect(n,null,r,d,m,null),p.uniforms.shadow_pass.value=i.mapPass.texture,p.uniforms.resolution.value=i.mapSize,p.uniforms.radius.value=i.radius,t.setRenderTarget(i.map),t.clear(),t.renderBufferDirect(n,null,r,p,m,null)}function b(e,i,n,s){let r=null;const a=!0===n.isPointLight?e.customDistanceMaterial:e.customDepthMaterial;if(void 0!==a)r=a;else if(r=!0===n.isPointLight?l:o,t.localClippingEnabled&&!0===i.clipShadows&&Array.isArray(i.clippingPlanes)&&0!==i.clippingPlanes.length||i.displacementMap&&0!==i.displacementScale||i.alphaMap&&i.alphaTest>0||i.map&&i.alphaTest>0){const t=r.uuid,e=i.uuid;let n=c[t];void 0===n&&(n={},c[t]=n);let s=n[e];void 0===s&&(s=r.clone(),n[e]=s,i.addEventListener("dispose",x)),r=s}if(r.visible=i.visible,r.wireframe=i.wireframe,r.side=3===s?null!==i.shadowSide?i.shadowSide:i.side:null!==i.shadowSide?i.shadowSide:u[i.side],r.alphaMap=i.alphaMap,r.alphaTest=i.alphaTest,r.map=i.map,r.clipShadows=i.clipShadows,r.clippingPlanes=i.clippingPlanes,r.clipIntersection=i.clipIntersection,r.displacementMap=i.displacementMap,r.displacementScale=i.displacementScale,r.displacementBias=i.displacementBias,r.wireframeLinewidth=i.wireframeLinewidth,r.linewidth=i.linewidth,!0===n.isPointLight&&!0===r.isMeshDistanceMaterial){t.properties.get(r).light=n}return r}function y(i,s,r,a,o){if(!1===i.visible)return;if(i.layers.test(s.layers)&&(i.isMesh||i.isLine||i.isPoints)&&(i.castShadow||i.receiveShadow&&3===o)&&(!i.frustumCulled||n.intersectsObject(i))){i.modelViewMatrix.multiplyMatrices(r.matrixWorldInverse,i.matrixWorld);const n=e.update(i),l=i.material;if(Array.isArray(l)){const e=n.groups;for(let c=0,h=e.length;c<h;c++){const h=e[c],u=l[h.materialIndex];if(u&&u.visible){const e=b(i,u,a,o);i.onBeforeShadow(t,i,s,r,n,e,h),t.renderBufferDirect(r,null,n,e,i,h),i.onAfterShadow(t,i,s,r,n,e,h)}}}else if(l.visible){const e=b(i,l,a,o);i.onBeforeShadow(t,i,s,r,n,e,null),t.renderBufferDirect(r,null,n,e,i,null),i.onAfterShadow(t,i,s,r,n,e,null)}}const l=i.children;for(let t=0,e=l.length;t<e;t++)y(l[t],s,r,a,o)}function x(t){t.target.removeEventListener("dispose",x);for(const e in c){const i=c[e],n=t.target.uuid;if(n in i){i[n].dispose(),delete i[n]}}}this.render=function(e,i,o){if(!1===g.enabled)return;if(!1===g.autoUpdate&&!1===g.needsUpdate)return;if(0===e.length)return;const l=t.getRenderTarget(),c=t.getActiveCubeFace(),u=t.getActiveMipmapLevel(),d=t.state;d.setBlending(0),d.buffers.color.setClear(1,1,1,1),d.buffers.depth.setTest(!0),d.setScissorTest(!1);const p=3!==f&&3===this.type,A=3===f&&3!==this.type;for(let l=0,c=e.length;l<c;l++){const c=e[l],u=c.shadow;if(void 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q=t.getParameter(t.MAX_COMBINED_TEXTURE_IMAGE_UNITS);let j=!1,X=0;const Y=t.getParameter(t.VERSION);-1!==Y.indexOf("WebGL")?(X=parseFloat(/^WebGL (\d)/.exec(Y)[1]),j=X>=1):-1!==Y.indexOf("OpenGL ES")&&(X=parseFloat(/^OpenGL ES (\d)/.exec(Y)[1]),j=X>=2);let K=null,J={};const $=t.getParameter(t.SCISSOR_BOX),Z=t.getParameter(t.VIEWPORT),tt=(new bi).fromArray($),et=(new bi).fromArray(Z);function it(e,i,n,s){const r=new Uint8Array(4),a=t.createTexture();t.bindTexture(e,a),t.texParameteri(e,t.TEXTURE_MIN_FILTER,t.NEAREST),t.texParameteri(e,t.TEXTURE_MAG_FILTER,t.NEAREST);for(let a=0;a<n;a++)e===t.TEXTURE_3D||e===t.TEXTURE_2D_ARRAY?t.texImage3D(i,0,t.RGBA,1,1,s,0,t.RGBA,t.UNSIGNED_BYTE,r):t.texImage2D(i+a,0,t.RGBA,1,1,0,t.RGBA,t.UNSIGNED_BYTE,r);return a}const nt={};function st(e){!0!==o[e]&&(t.enable(e),o[e]=!0)}function 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WeakMap,h=[],u=null,d=!1,p=null,A=null,m=null,g=null,f=null,v=null,b=null,y=new Xn(0,0,0),x=0,_=!1,E=null,S=null,C=null,w=null,I=null,tt.set(0,0,t.canvas.width,t.canvas.height),et.set(0,0,t.canvas.width,t.canvas.height),i.reset(),n.reset(),s.reset()}}}function kh(t,e,i,n,s,r,a){const o=e.has("WEBGL_multisampled_render_to_texture")?e.get("WEBGL_multisampled_render_to_texture"):null,l="undefined"!=typeof navigator&&/OculusBrowser/g.test(navigator.userAgent),c=new $e,h=new WeakMap;let u;const d=new WeakMap;let p=!1;try{p="undefined"!=typeof OffscreenCanvas&&null!==new OffscreenCanvas(1,1).getContext("2d")}catch(t){}function A(t,e){return p?new OffscreenCanvas(t,e):ii("canvas")}function m(t,e,i){let n=1;const s=G(t);if((s.width>i||s.height>i)&&(n=i/Math.max(s.width,s.height)),n<1){if("undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&t instanceof 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e=a?Ce:ci.getTransfer(r);s===t.FLOAT&&(o=t.RGBA32F),s===t.HALF_FLOAT&&(o=t.RGBA16F),s===t.UNSIGNED_BYTE&&(o=e===we?t.SRGB8_ALPHA8:t.RGBA8),s===t.UNSIGNED_SHORT_4_4_4_4&&(o=t.RGBA4),s===t.UNSIGNED_SHORT_5_5_5_1&&(o=t.RGB5_A1)}return o!==t.R16F&&o!==t.R32F&&o!==t.RG16F&&o!==t.RG32F&&o!==t.RGBA16F&&o!==t.RGBA32F||e.get("EXT_color_buffer_float"),o}function y(e,i){let n;return e?null===i||i===yt||i===Ct?n=t.DEPTH24_STENCIL8:i===xt?n=t.DEPTH32F_STENCIL8:i===vt&&(n=t.DEPTH24_STENCIL8,console.warn("DepthTexture: 16 bit depth attachment is not supported with stencil. 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OES_texture_float_linear not supported on this device."),t.texParameteri(i,t.TEXTURE_WRAP_S,I[r.wrapS]),t.texParameteri(i,t.TEXTURE_WRAP_T,I[r.wrapT]),i!==t.TEXTURE_3D&&i!==t.TEXTURE_2D_ARRAY||t.texParameteri(i,t.TEXTURE_WRAP_R,I[r.wrapR]),t.texParameteri(i,t.TEXTURE_MAG_FILTER,M[r.magFilter]),t.texParameteri(i,t.TEXTURE_MIN_FILTER,M[r.minFilter]),r.compareFunction&&(t.texParameteri(i,t.TEXTURE_COMPARE_MODE,t.COMPARE_REF_TO_TEXTURE),t.texParameteri(i,t.TEXTURE_COMPARE_FUNC,T[r.compareFunction])),!0===e.has("EXT_texture_filter_anisotropic")){if(r.magFilter===ct)return;if(r.minFilter!==ut&&r.minFilter!==At)return;if(r.type===xt&&!1===e.has("OES_texture_float_linear"))return;if(r.anisotropy>1||n.get(r).__currentAnisotropy){const a=e.get("EXT_texture_filter_anisotropic");t.texParameterf(i,a.TEXTURE_MAX_ANISOTROPY_EXT,Math.min(r.anisotropy,s.getMaxAnisotropy())),n.get(r).__currentAnisotropy=r.anisotropy}}}function R(e,i){let n=!1;void 0===e.__webglInit&&(e.__webglInit=!0,i.addEventListener("dispose",_));const s=i.source;let r=d.get(s);void 0===r&&(r={},d.set(s,r));const o=function(t){const e=[];return e.push(t.wrapS),e.push(t.wrapT),e.push(t.wrapR||0),e.push(t.magFilter),e.push(t.minFilter),e.push(t.anisotropy),e.push(t.internalFormat),e.push(t.format),e.push(t.type),e.push(t.generateMipmaps),e.push(t.premultiplyAlpha),e.push(t.flipY),e.push(t.unpackAlignment),e.push(t.colorSpace),e.join()}(i);if(o!==e.__cacheKey){void 0===r[o]&&(r[o]={texture:t.createTexture(),usedTimes:0},a.memory.textures++,n=!0),r[o].usedTimes++;const s=r[e.__cacheKey];void 0!==s&&(r[e.__cacheKey].usedTimes--,0===s.usedTimes&&S(i)),e.__cacheKey=o,e.__webglTexture=r[o].texture}return n}function D(e,a,o){let l=t.TEXTURE_2D;(a.isDataArrayTexture||a.isCompressedArrayTexture)&&(l=t.TEXTURE_2D_ARRAY),a.isData3DTexture&&(l=t.TEXTURE_3D);const c=R(e,a),h=a.source;i.bindTexture(l,e.__webglTexture,t.TEXTURE0+o);const 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i.compressedTexImage3D(t.TEXTURE_2D_ARRAY,e,E,_.width,_.height,p.depth,0,_.data,0,0);else console.warn("THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()");else C?I&&i.texSubImage3D(t.TEXTURE_2D_ARRAY,e,0,0,0,_.width,_.height,p.depth,A,v,_.data):i.texImage3D(t.TEXTURE_2D_ARRAY,e,E,_.width,_.height,p.depth,0,A,v,_.data)}else{C&&w&&i.texStorage2D(t.TEXTURE_2D,M,E,S[0].width,S[0].height);for(let e=0,n=S.length;e<n;e++)_=S[e],a.format!==It?null!==A?C?I&&i.compressedTexSubImage2D(t.TEXTURE_2D,e,0,0,_.width,_.height,A,_.data):i.compressedTexImage2D(t.TEXTURE_2D,e,E,_.width,_.height,0,_.data):console.warn("THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()"):C?I&&i.texSubImage2D(t.TEXTURE_2D,e,0,0,_.width,_.height,A,v,_.data):i.texImage2D(t.TEXTURE_2D,e,E,_.width,_.height,0,A,v,_.data)}else if(a.isDataArrayTexture)if(C){if(w&&i.texStorage3D(t.TEXTURE_2D_ARRAY,M,E,p.width,p.height,p.depth),I)if(a.layerUpdates.size>0){const e=ul(p.width,p.height,a.format,a.type);for(const n of a.layerUpdates){const s=p.data.subarray(n*e/p.data.BYTES_PER_ELEMENT,(n+1)*e/p.data.BYTES_PER_ELEMENT);i.texSubImage3D(t.TEXTURE_2D_ARRAY,0,0,0,n,p.width,p.height,1,A,v,s)}a.clearLayerUpdates()}else i.texSubImage3D(t.TEXTURE_2D_ARRAY,0,0,0,0,p.width,p.height,p.depth,A,v,p.data)}else i.texImage3D(t.TEXTURE_2D_ARRAY,0,E,p.width,p.height,p.depth,0,A,v,p.data);else if(a.isData3DTexture)C?(w&&i.texStorage3D(t.TEXTURE_3D,M,E,p.width,p.height,p.depth),I&&i.texSubImage3D(t.TEXTURE_3D,0,0,0,0,p.width,p.height,p.depth,A,v,p.data)):i.texImage3D(t.TEXTURE_3D,0,E,p.width,p.height,p.depth,0,A,v,p.data);else if(a.isFramebufferTexture){if(w)if(C)i.texStorage2D(t.TEXTURE_2D,M,E,p.width,p.height);else{let e=p.width,n=p.height;for(let s=0;s<M;s++)i.texImage2D(t.TEXTURE_2D,s,E,e,n,0,A,v,null),e>>=1,n>>=1}}else if(S.length>0){if(C&&w){const e=G(S[0]);i.texStorage2D(t.TEXTURE_2D,M,E,e.width,e.height)}for(let e=0,n=S.length;e<n;e++)_=S[e],C?I&&i.texSubImage2D(t.TEXTURE_2D,e,0,0,A,v,_):i.texImage2D(t.TEXTURE_2D,e,E,A,v,_);a.generateMipmaps=!1}else if(C){if(w){const e=G(p);i.texStorage2D(t.TEXTURE_2D,M,E,e.width,e.height)}I&&i.texSubImage2D(t.TEXTURE_2D,0,0,0,A,v,p)}else i.texImage2D(t.TEXTURE_2D,0,E,A,v,p);g(a)&&f(l),u.__version=h.version,a.onUpdate&&a.onUpdate(a)}e.__version=a.version}function L(e,s,a,l,c,h){const u=r.convert(a.format,a.colorSpace),d=r.convert(a.type),p=b(a.internalFormat,u,d,a.colorSpace),A=n.get(s),m=n.get(a);if(m.__renderTarget=s,!A.__hasExternalTextures){const e=Math.max(1,s.width>>h),n=Math.max(1,s.height>>h);c===t.TEXTURE_3D||c===t.TEXTURE_2D_ARRAY?i.texImage3D(c,h,p,e,n,s.depth,0,u,d,null):i.texImage2D(c,h,p,e,n,0,u,d,null)}i.bindFramebuffer(t.FRAMEBUFFER,e),Q(s)?o.framebufferTexture2DMultisampleEXT(t.FRAMEBUFFER,l,c,m.__webglTexture,0,O(s)):(c===t.TEXTURE_2D||c>=t.TEXTURE_CUBE_MAP_POSITIVE_X&&c<=t.TEXTURE_CUBE_MAP_NEGATIVE_Z)&&t.framebufferTexture2D(t.FRAMEBUFFER,l,c,m.__webglTexture,h),i.bindFramebuffer(t.FRAMEBUFFER,null)}function P(e,i,n){if(t.bindRenderbuffer(t.RENDERBUFFER,e),i.depthBuffer){const s=i.depthTexture,r=s&&s.isDepthTexture?s.type:null,a=y(i.stencilBuffer,r),l=i.stencilBuffer?t.DEPTH_STENCIL_ATTACHMENT:t.DEPTH_ATTACHMENT,c=O(i);Q(i)?o.renderbufferStorageMultisampleEXT(t.RENDERBUFFER,c,a,i.width,i.height):n?t.renderbufferStorageMultisample(t.RENDERBUFFER,c,a,i.width,i.height):t.renderbufferStorage(t.RENDERBUFFER,a,i.width,i.height),t.framebufferRenderbuffer(t.FRAMEBUFFER,l,t.RENDERBUFFER,e)}else{const e=i.textures;for(let s=0;s<e.length;s++){const a=e[s],l=r.convert(a.format,a.colorSpace),c=r.convert(a.type),h=b(a.internalFormat,l,c,a.colorSpace),u=O(i);n&&!1===Q(i)?t.renderbufferStorageMultisample(t.RENDERBUFFER,u,h,i.width,i.height):Q(i)?o.renderbufferStorageMultisampleEXT(t.RENDERBUFFER,u,h,i.width,i.height):t.renderbufferStorage(t.RENDERBUFFER,h,i.width,i.height)}}t.bindRenderbuffer(t.RENDERBUFFER,null)}function U(e){const s=n.get(e),r=!0===e.isWebGLCubeRenderTarget;if(s.__boundDepthTexture!==e.depthTexture){const t=e.depthTexture;if(s.__depthDisposeCallback&&s.__depthDisposeCallback(),t){const e=()=>{delete s.__boundDepthTexture,delete s.__depthDisposeCallback,t.removeEventListener("dispose",e)};t.addEventListener("dispose",e),s.__depthDisposeCallback=e}s.__boundDepthTexture=t}if(e.depthTexture&&!s.__autoAllocateDepthBuffer){if(r)throw new Error("target.depthTexture not supported in Cube render targets");!function(e,s){if(s&&s.isWebGLCubeRenderTarget)throw new Error("Depth Texture with cube render 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if(r){s.__webglDepthbuffer=[];for(let n=0;n<6;n++)if(i.bindFramebuffer(t.FRAMEBUFFER,s.__webglFramebuffer[n]),void 0===s.__webglDepthbuffer[n])s.__webglDepthbuffer[n]=t.createRenderbuffer(),P(s.__webglDepthbuffer[n],e,!1);else{const i=e.stencilBuffer?t.DEPTH_STENCIL_ATTACHMENT:t.DEPTH_ATTACHMENT,r=s.__webglDepthbuffer[n];t.bindRenderbuffer(t.RENDERBUFFER,r),t.framebufferRenderbuffer(t.FRAMEBUFFER,i,t.RENDERBUFFER,r)}}else if(i.bindFramebuffer(t.FRAMEBUFFER,s.__webglFramebuffer),void 0===s.__webglDepthbuffer)s.__webglDepthbuffer=t.createRenderbuffer(),P(s.__webglDepthbuffer,e,!1);else{const i=e.stencilBuffer?t.DEPTH_STENCIL_ATTACHMENT:t.DEPTH_ATTACHMENT,n=s.__webglDepthbuffer;t.bindRenderbuffer(t.RENDERBUFFER,n),t.framebufferRenderbuffer(t.FRAMEBUFFER,i,t.RENDERBUFFER,n)}i.bindFramebuffer(t.FRAMEBUFFER,null)}const F=[],N=[];function O(t){return Math.min(s.maxSamples,t.samples)}function Q(t){const i=n.get(t);return 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s=I[n];a.format!==It?null!==y?S?w&&i.compressedTexSubImage2D(t.TEXTURE_CUBE_MAP_POSITIVE_X+e,n,0,0,s.width,s.height,y,s.data):i.compressedTexImage2D(t.TEXTURE_CUBE_MAP_POSITIVE_X+e,n,E,s.width,s.height,0,s.data):console.warn("THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .setTextureCube()"):S?w&&i.texSubImage2D(t.TEXTURE_CUBE_MAP_POSITIVE_X+e,n,0,0,s.width,s.height,y,_,s.data):i.texImage2D(t.TEXTURE_CUBE_MAP_POSITIVE_X+e,n,E,s.width,s.height,0,y,_,s.data)}}}else{if(I=a.mipmaps,S&&C){I.length>0&&M++;const e=G(A[0]);i.texStorage2D(t.TEXTURE_CUBE_MAP,M,E,e.width,e.height)}for(let e=0;e<6;e++)if(p){S?w&&i.texSubImage2D(t.TEXTURE_CUBE_MAP_POSITIVE_X+e,0,0,0,A[e].width,A[e].height,y,_,A[e].data):i.texImage2D(t.TEXTURE_CUBE_MAP_POSITIVE_X+e,0,E,A[e].width,A[e].height,0,y,_,A[e].data);for(let n=0;n<I.length;n++){const s=I[n].image[e].image;S?w&&i.texSubImage2D(t.TEXTURE_CUBE_MAP_POSITIVE_X+e,n+1,0,0,s.width,s.height,y,_,s.data):i.texImage2D(t.TEXTURE_CUBE_MAP_POSITIVE_X+e,n+1,E,s.width,s.height,0,y,_,s.data)}}else{S?w&&i.texSubImage2D(t.TEXTURE_CUBE_MAP_POSITIVE_X+e,0,0,0,y,_,A[e]):i.texImage2D(t.TEXTURE_CUBE_MAP_POSITIVE_X+e,0,E,y,_,A[e]);for(let n=0;n<I.length;n++){const s=I[n];S?w&&i.texSubImage2D(t.TEXTURE_CUBE_MAP_POSITIVE_X+e,n+1,0,0,y,_,s.image[e]):i.texImage2D(t.TEXTURE_CUBE_MAP_POSITIVE_X+e,n+1,E,y,_,s.image[e])}}}g(a)&&f(t.TEXTURE_CUBE_MAP),h.__version=c.version,a.onUpdate&&a.onUpdate(a)}e.__version=a.version}(o,e,a):i.bindTexture(t.TEXTURE_CUBE_MAP,o.__webglTexture,t.TEXTURE0+a)},this.rebindTextures=function(e,i,s){const r=n.get(e);void 0!==i&&L(r.__webglFramebuffer,e,e.texture,t.COLOR_ATTACHMENT0,t.TEXTURE_2D,0),void 0!==s&&U(e)},this.setupRenderTarget=function(e){const s=e.texture,o=n.get(e),l=n.get(s);e.addEventListener("dispose",E);const c=e.textures,h=!0===e.isWebGLCubeRenderTarget,u=c.length>1;if(u||(void 0===l.__webglTexture&&(l.__webglTexture=t.createTexture()),l.__version=s.version,a.memory.textures++),h){o.__webglFramebuffer=[];for(let e=0;e<6;e++)if(s.mipmaps&&s.mipmaps.length>0){o.__webglFramebuffer[e]=[];for(let i=0;i<s.mipmaps.length;i++)o.__webglFramebuffer[e][i]=t.createFramebuffer()}else o.__webglFramebuffer[e]=t.createFramebuffer()}else{if(s.mipmaps&&s.mipmaps.length>0){o.__webglFramebuffer=[];for(let e=0;e<s.mipmaps.length;e++)o.__webglFramebuffer[e]=t.createFramebuffer()}else o.__webglFramebuffer=t.createFramebuffer();if(u)for(let e=0,i=c.length;e<i;e++){const i=n.get(c[e]);void 0===i.__webglTexture&&(i.__webglTexture=t.createTexture(),a.memory.textures++)}if(e.samples>0&&!1===Q(e)){o.__webglMultisampledFramebuffer=t.createFramebuffer(),o.__webglColorRenderbuffer=[],i.bindFramebuffer(t.FRAMEBUFFER,o.__webglMultisampledFramebuffer);for(let i=0;i<c.length;i++){const n=c[i];o.__webglColorRenderbuffer[i]=t.createRenderbuffer(),t.bindRenderbuffer(t.RENDERBUFFER,o.__webglColorRenderbuffer[i]);const s=r.convert(n.format,n.colorSpace),a=r.convert(n.type),l=b(n.internalFormat,s,a,n.colorSpace,!0===e.isXRRenderTarget),h=O(e);t.renderbufferStorageMultisample(t.RENDERBUFFER,h,l,e.width,e.height),t.framebufferRenderbuffer(t.FRAMEBUFFER,t.COLOR_ATTACHMENT0+i,t.RENDERBUFFER,o.__webglColorRenderbuffer[i])}t.bindRenderbuffer(t.RENDERBUFFER,null),e.depthBuffer&&(o.__webglDepthRenderbuffer=t.createRenderbuffer(),P(o.__webglDepthRenderbuffer,e,!0)),i.bindFramebuffer(t.FRAMEBUFFER,null)}}if(h){i.bindTexture(t.TEXTURE_CUBE_MAP,l.__webglTexture),B(t.TEXTURE_CUBE_MAP,s);for(let i=0;i<6;i++)if(s.mipmaps&&s.mipmaps.length>0)for(let n=0;n<s.mipmaps.length;n++)L(o.__webglFramebuffer[i][n],e,s,t.COLOR_ATTACHMENT0,t.TEXTURE_CUBE_MAP_POSITIVE_X+i,n);else L(o.__webglFramebuffer[i],e,s,t.COLOR_ATTACHMENT0,t.TEXTURE_CUBE_MAP_POSITIVE_X+i,0);g(s)&&f(t.TEXTURE_CUBE_MAP),i.unbindTexture()}else if(u){for(let s=0,r=c.length;s<r;s++){const r=c[s],a=n.get(r);i.bindTexture(t.TEXTURE_2D,a.__webglTexture),B(t.TEXTURE_2D,r),L(o.__webglFramebuffer,e,r,t.COLOR_ATTACHMENT0+s,t.TEXTURE_2D,0),g(r)&&f(t.TEXTURE_2D)}i.unbindTexture()}else{let n=t.TEXTURE_2D;if((e.isWebGL3DRenderTarget||e.isWebGLArrayRenderTarget)&&(n=e.isWebGL3DRenderTarget?t.TEXTURE_3D:t.TEXTURE_2D_ARRAY),i.bindTexture(n,l.__webglTexture),B(n,s),s.mipmaps&&s.mipmaps.length>0)for(let i=0;i<s.mipmaps.length;i++)L(o.__webglFramebuffer[i],e,s,t.COLOR_ATTACHMENT0,n,i);else L(o.__webglFramebuffer,e,s,t.COLOR_ATTACHMENT0,n,0);g(s)&&f(n),i.unbindTexture()}e.depthBuffer&&U(e)},this.updateRenderTargetMipmap=function(t){const e=t.textures;for(let s=0,r=e.length;s<r;s++){const r=e[s];if(g(r)){const e=v(t),s=n.get(r).__webglTexture;i.bindTexture(e,s),f(e),i.unbindTexture()}}},this.updateMultisampleRenderTarget=function(e){if(e.samples>0)if(!1===Q(e)){const s=e.textures,r=e.width,a=e.height;let o=t.COLOR_BUFFER_BIT;const c=e.stencilBuffer?t.DEPTH_STENCIL_ATTACHMENT:t.DEPTH_ATTACHMENT,h=n.get(e),u=s.length>1;if(u)for(let e=0;e<s.length;e++)i.bindFramebuffer(t.FRAMEBUFFER,h.__webglMultisampledFramebuffer),t.framebufferRenderbuffer(t.FRAMEBUFFER,t.COLOR_ATTACHMENT0+e,t.RENDERBUFFER,null),i.bindFramebuffer(t.FRAMEBUFFER,h.__webglFramebuffer),t.framebufferTexture2D(t.DRAW_FRAMEBUFFER,t.COLOR_ATTACHMENT0+e,t.TEXTURE_2D,null,0);i.bindFramebuffer(t.READ_FRAMEBUFFER,h.__webglMultisampledFramebuffer),i.bindFramebuffer(t.DRAW_FRAMEBUFFER,h.__webglFramebuffer);for(let i=0;i<s.length;i++){if(e.resolveDepthBuffer&&(e.depthBuffer&&(o|=t.DEPTH_BUFFER_BIT),e.stencilBuffer&&e.resolveStencilBuffer&&(o|=t.STENCIL_BUFFER_BIT)),u){t.framebufferRenderbuffer(t.READ_FRAMEBUFFER,t.COLOR_ATTACHMENT0,t.RENDERBUFFER,h.__webglColorRenderbuffer[i]);const e=n.get(s[i]).__webglTexture;t.framebufferTexture2D(t.DRAW_FRAMEBUFFER,t.COLOR_ATTACHMENT0,t.TEXTURE_2D,e,0)}t.blitFramebuffer(0,0,r,a,0,0,r,a,o,t.NEAREST),!0===l&&(F.length=0,N.length=0,F.push(t.COLOR_ATTACHMENT0+i),e.depthBuffer&&!1===e.resolveDepthBuffer&&(F.push(c),N.push(c),t.invalidateFramebuffer(t.DRAW_FRAMEBUFFER,N)),t.invalidateFramebuffer(t.READ_FRAMEBUFFER,F))}if(i.bindFramebuffer(t.READ_FRAMEBUFFER,null),i.bindFramebuffer(t.DRAW_FRAMEBUFFER,null),u)for(let e=0;e<s.length;e++){i.bindFramebuffer(t.FRAMEBUFFER,h.__webglMultisampledFramebuffer),t.framebufferRenderbuffer(t.FRAMEBUFFER,t.COLOR_ATTACHMENT0+e,t.RENDERBUFFER,h.__webglColorRenderbuffer[e]);const r=n.get(s[e]).__webglTexture;i.bindFramebuffer(t.FRAMEBUFFER,h.__webglFramebuffer),t.framebufferTexture2D(t.DRAW_FRAMEBUFFER,t.COLOR_ATTACHMENT0+e,t.TEXTURE_2D,r,0)}i.bindFramebuffer(t.DRAW_FRAMEBUFFER,h.__webglMultisampledFramebuffer)}else if(e.depthBuffer&&!1===e.resolveDepthBuffer&&l){const i=e.stencilBuffer?t.DEPTH_STENCIL_ATTACHMENT:t.DEPTH_ATTACHMENT;t.invalidateFramebuffer(t.DRAW_FRAMEBUFFER,[i])}},this.setupDepthRenderbuffer=U,this.setupFrameBufferTexture=L,this.useMultisampledRTT=Q}function Gh(t,e){return{convert:function(i,n=""){let s;const r=ci.getTransfer(n);if(i===mt)return t.UNSIGNED_BYTE;if(i===Et)return t.UNSIGNED_SHORT_4_4_4_4;if(i===St)return t.UNSIGNED_SHORT_5_5_5_1;if(i===wt)return t.UNSIGNED_INT_5_9_9_9_REV;if(i===gt)return t.BYTE;if(i===ft)return t.SHORT;if(i===vt)return t.UNSIGNED_SHORT;if(i===bt)return t.INT;if(i===yt)return t.UNSIGNED_INT;if(i===xt)return t.FLOAT;if(i===_t)return t.HALF_FLOAT;if(1021===i)return t.ALPHA;if(1022===i)return t.RGB;if(i===It)return t.RGBA;if(1024===i)return t.LUMINANCE;if(1025===i)return t.LUMINANCE_ALPHA;if(i===Mt)return t.DEPTH_COMPONENT;if(i===Tt)return t.DEPTH_STENCIL;if(i===Bt)return t.RED;if(i===Rt)return t.RED_INTEGER;if(i===Dt)return t.RG;if(i===Lt)return t.RG_INTEGER;if(i===Pt)return t.RGBA_INTEGER;if(i===Ut||i===Ft||i===Nt||i===Ot)if(r===we){if(s=e.get("WEBGL_compressed_texture_s3tc_srgb"),null===s)return null;if(i===Ut)return s.COMPRESSED_SRGB_S3TC_DXT1_EXT;if(i===Ft)return s.COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT;if(i===Nt)return s.COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT;if(i===Ot)return s.COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT}else{if(s=e.get("WEBGL_compressed_texture_s3tc"),null===s)return null;if(i===Ut)return s.COMPRESSED_RGB_S3TC_DXT1_EXT;if(i===Ft)return s.COMPRESSED_RGBA_S3TC_DXT1_EXT;if(i===Nt)return s.COMPRESSED_RGBA_S3TC_DXT3_EXT;if(i===Ot)return s.COMPRESSED_RGBA_S3TC_DXT5_EXT}if(i===Qt||i===kt||i===Gt||i===Ht){if(s=e.get("WEBGL_compressed_texture_pvrtc"),null===s)return null;if(i===Qt)return s.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;if(i===kt)return s.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;if(i===Gt)return s.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;if(i===Ht)return s.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG}if(i===zt||i===Vt||i===Wt){if(s=e.get("WEBGL_compressed_texture_etc"),null===s)return null;if(i===zt||i===Vt)return r===we?s.COMPRESSED_SRGB8_ETC2:s.COMPRESSED_RGB8_ETC2;if(i===Wt)return r===we?s.COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:s.COMPRESSED_RGBA8_ETC2_EAC}if(i===qt||i===jt||i===Xt||i===Yt||i===Kt||i===Jt||i===$t||i===Zt||i===te||i===ee||i===ie||i===ne||i===se||i===re){if(s=e.get("WEBGL_compressed_texture_astc"),null===s)return null;if(i===qt)return r===we?s.COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR:s.COMPRESSED_RGBA_ASTC_4x4_KHR;if(i===jt)return r===we?s.COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR:s.COMPRESSED_RGBA_ASTC_5x4_KHR;if(i===Xt)return r===we?s.COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR:s.COMPRESSED_RGBA_ASTC_5x5_KHR;if(i===Yt)return r===we?s.COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR:s.COMPRESSED_RGBA_ASTC_6x5_KHR;if(i===Kt)return r===we?s.COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR:s.COMPRESSED_RGBA_ASTC_6x6_KHR;if(i===Jt)return r===we?s.COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR:s.COMPRESSED_RGBA_ASTC_8x5_KHR;if(i===$t)return r===we?s.COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR:s.COMPRESSED_RGBA_ASTC_8x6_KHR;if(i===Zt)return r===we?s.COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR:s.COMPRESSED_RGBA_ASTC_8x8_KHR;if(i===te)return r===we?s.COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR:s.COMPRESSED_RGBA_ASTC_10x5_KHR;if(i===ee)return r===we?s.COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR:s.COMPRESSED_RGBA_ASTC_10x6_KHR;if(i===ie)return r===we?s.COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR:s.COMPRESSED_RGBA_ASTC_10x8_KHR;if(i===ne)return r===we?s.COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR:s.COMPRESSED_RGBA_ASTC_10x10_KHR;if(i===se)return r===we?s.COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR:s.COMPRESSED_RGBA_ASTC_12x10_KHR;if(i===re)return r===we?s.COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR:s.COMPRESSED_RGBA_ASTC_12x12_KHR}if(i===ae||i===oe||i===le){if(s=e.get("EXT_texture_compression_bptc"),null===s)return null;if(i===ae)return r===we?s.COMPRESSED_SRGB_ALPHA_BPTC_UNORM_EXT:s.COMPRESSED_RGBA_BPTC_UNORM_EXT;if(i===oe)return s.COMPRESSED_RGB_BPTC_SIGNED_FLOAT_EXT;if(i===le)return s.COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_EXT}if(36283===i||i===ce||i===he||i===ue){if(s=e.get("EXT_texture_compression_rgtc"),null===s)return null;if(i===ae)return s.COMPRESSED_RED_RGTC1_EXT;if(i===ce)return s.COMPRESSED_SIGNED_RED_RGTC1_EXT;if(i===he)return s.COMPRESSED_RED_GREEN_RGTC2_EXT;if(i===ue)return s.COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT}return i===Ct?t.UNSIGNED_INT_24_8:void 0!==t[i]?t[i]:null}}}class Hh{constructor(){this.texture=null,this.mesh=null,this.depthNear=0,this.depthFar=0}init(t,e,i){if(null===this.texture){const n=new vi;t.properties.get(n).__webglTexture=e.texture,e.depthNear===i.depthNear&&e.depthFar===i.depthFar||(this.depthNear=e.depthNear,this.depthFar=e.depthFar),this.texture=n}}getMesh(t){if(null!==this.texture&&null===this.mesh){const e=t.cameras[0].viewport,i=new Us({vertexShader:"\nvoid main() {\n\n\tgl_Position = vec4( position, 1.0 );\n\n}",fragmentShader:"\nuniform sampler2DArray depthColor;\nuniform float depthWidth;\nuniform float depthHeight;\n\nvoid main() {\n\n\tvec2 coord = vec2( gl_FragCoord.x / depthWidth, gl_FragCoord.y / depthHeight );\n\n\tif ( coord.x >= 1.0 ) {\n\n\t\tgl_FragDepth = texture( depthColor, vec3( coord.x - 1.0, coord.y, 1 ) ).r;\n\n\t} else {\n\n\t\tgl_FragDepth = texture( depthColor, vec3( coord.x, coord.y, 0 ) ).r;\n\n\t}\n\n}",uniforms:{depthColor:{value:this.texture},depthWidth:{value:e.z},depthHeight:{value:e.w}}});this.mesh=new Ms(new Xa(20,20),i)}return this.mesh}reset(){this.texture=null,this.mesh=null}getDepthTexture(){return this.texture}}class zh extends ke{constructor(t,e){super();const i=this;let n=null,s=1,r=null,a="local-floor",o=1,l=null,c=null,h=null,u=null,d=null,p=null;const A=new Hh,m=e.getContextAttributes();let g=null,f=null;const v=[],b=[],y=new $e;let x=null;const _=new ks;_.viewport=new bi;const E=new ks;E.viewport=new bi;const S=[_,E],C=new Yo;let w=null,I=null;function M(t){const e=b.indexOf(t.inputSource);if(-1===e)return;const i=v[e];void 0!==i&&(i.update(t.inputSource,t.frame,l||r),i.dispatchEvent({type:t.type,data:t.inputSource}))}function T(){n.removeEventListener("select",M),n.removeEventListener("selectstart",M),n.removeEventListener("selectend",M),n.removeEventListener("squeeze",M),n.removeEventListener("squeezestart",M),n.removeEventListener("squeezeend",M),n.removeEventListener("end",T),n.removeEventListener("inputsourceschange",B);for(let t=0;t<v.length;t++){const e=b[t];null!==e&&(b[t]=null,v[t].disconnect(e))}w=null,I=null,A.reset(),t.setRenderTarget(g),d=null,u=null,h=null,n=null,f=null,U.stop(),i.isPresenting=!1,t.setPixelRatio(x),t.setSize(y.width,y.height,!1),i.dispatchEvent({type:"sessionend"})}function B(t){for(let e=0;e<t.removed.length;e++){const i=t.removed[e],n=b.indexOf(i);n>=0&&(b[n]=null,v[n].disconnect(i))}for(let e=0;e<t.added.length;e++){const i=t.added[e];let n=b.indexOf(i);if(-1===n){for(let t=0;t<v.length;t++){if(t>=b.length){b.push(i),n=t;break}if(null===b[t]){b[t]=i,n=t;break}}if(-1===n)break}const s=v[n];s&&s.connect(i)}}this.cameraAutoUpdate=!0,this.enabled=!1,this.isPresenting=!1,this.getController=function(t){let e=v[t];return void 0===e&&(e=new js,v[t]=e),e.getTargetRaySpace()},this.getControllerGrip=function(t){let e=v[t];return void 0===e&&(e=new js,v[t]=e),e.getGripSpace()},this.getHand=function(t){let e=v[t];return void 0===e&&(e=new js,v[t]=e),e.getHandSpace()},this.setFramebufferScaleFactor=function(t){s=t,!0===i.isPresenting&&console.warn("THREE.WebXRManager: Cannot change framebuffer scale while presenting.")},this.setReferenceSpaceType=function(t){a=t,!0===i.isPresenting&&console.warn("THREE.WebXRManager: Cannot change reference space type while presenting.")},this.getReferenceSpace=function(){return l||r},this.setReferenceSpace=function(t){l=t},this.getBaseLayer=function(){return null!==u?u:d},this.getBinding=function(){return h},this.getFrame=function(){return p},this.getSession=function(){return n},this.setSession=async function(c){if(n=c,null!==n){g=t.getRenderTarget(),n.addEventListener("select",M),n.addEventListener("selectstart",M),n.addEventListener("selectend",M),n.addEventListener("squeeze",M),n.addEventListener("squeezestart",M),n.addEventListener("squeezeend",M),n.addEventListener("end",T),n.addEventListener("inputsourceschange",B),!0!==m.xrCompatible&&await e.makeXRCompatible(),x=t.getPixelRatio(),t.getSize(y);if("undefined"!=typeof XRWebGLBinding&&"createProjectionLayer"in XRWebGLBinding.prototype){let i=null,r=null,a=null;m.depth&&(a=m.stencil?e.DEPTH24_STENCIL8:e.DEPTH_COMPONENT24,i=m.stencil?Tt:Mt,r=m.stencil?Ct:yt);const o={colorFormat:e.RGBA8,depthFormat:a,scaleFactor:s};h=new XRWebGLBinding(n,e),u=h.createProjectionLayer(o),n.updateRenderState({layers:[u]}),t.setPixelRatio(1),t.setSize(u.textureWidth,u.textureHeight,!1),f=new xi(u.textureWidth,u.textureHeight,{format:It,type:mt,depthTexture:new ea(u.textureWidth,u.textureHeight,r,void 0,void 0,void 0,void 0,void 0,void 0,i),stencilBuffer:m.stencil,colorSpace:t.outputColorSpace,samples:m.antialias?4:0,resolveDepthBuffer:!1===u.ignoreDepthValues,resolveStencilBuffer:!1===u.ignoreDepthValues})}else{const i={antialias:m.antialias,alpha:!0,depth:m.depth,stencil:m.stencil,framebufferScaleFactor:s};d=new 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e=a+A,i=o+A,s=d-m,r=p+(n-m),h=l*o/i*e,u=c*o/i*e;t.projectionMatrix.makePerspective(s,r,h,u,e,i),t.projectionMatrixInverse.copy(t.projectionMatrix).invert()}}(C,_,E):C.projectionMatrix.copy(_.projectionMatrix),function(t,e,i){null===i?t.matrix.copy(e.matrixWorld):(t.matrix.copy(i.matrixWorld),t.matrix.invert(),t.matrix.multiply(e.matrixWorld));t.matrix.decompose(t.position,t.quaternion,t.scale),t.updateMatrixWorld(!0),t.projectionMatrix.copy(e.projectionMatrix),t.projectionMatrixInverse.copy(e.projectionMatrixInverse),t.isPerspectiveCamera&&(t.fov=2*Ve*Math.atan(1/t.projectionMatrix.elements[5]),t.zoom=1)}(t,C,s)},this.getCamera=function(){return C},this.getFoveation=function(){if(null!==u||null!==d)return o},this.setFoveation=function(t){o=t,null!==u&&(u.fixedFoveation=t),null!==d&&void 0!==d.fixedFoveation&&(d.fixedFoveation=t)},this.hasDepthSensing=function(){return null!==A.texture},this.getDepthSensingMesh=function(){return A.getMesh(C)};let P=null;const U=new dl;U.setAnimationLoop((function(e,s){if(c=s.getViewerPose(l||r),p=s,null!==c){const e=c.views;null!==d&&(t.setRenderTargetFramebuffer(f,d.framebuffer),t.setRenderTarget(f));let i=!1;e.length!==C.cameras.length&&(C.cameras.length=0,i=!0);for(let n=0;n<e.length;n++){const s=e[n];let r=null;if(null!==d)r=d.getViewport(s);else{const e=h.getViewSubImage(u,s);r=e.viewport,0===n&&(t.setRenderTargetTextures(f,e.colorTexture,u.ignoreDepthValues?void 0:e.depthStencilTexture),t.setRenderTarget(f))}let a=S[n];void 0===a&&(a=new ks,a.layers.enable(n),a.viewport=new bi,S[n]=a),a.matrix.fromArray(s.transform.matrix),a.matrix.decompose(a.position,a.quaternion,a.scale),a.projectionMatrix.fromArray(s.projectionMatrix),a.projectionMatrixInverse.copy(a.projectionMatrix).invert(),a.viewport.set(r.x,r.y,r.width,r.height),0===n&&(C.matrix.copy(a.matrix),C.matrix.decompose(C.position,C.quaternion,C.scale)),!0===i&&C.cameras.push(a)}const s=n.enabledFeatures;if(s&&s.includes("depth-sensing")&&"gpu-optimized"==n.depthUsage&&h){const i=h.getDepthInformation(e[0]);i&&i.isValid&&i.texture&&A.init(t,i,n.renderState)}}for(let t=0;t<v.length;t++){const e=b[t],i=v[t];null!==e&&void 0!==i&&i.update(e,s,l||r)}P&&P(e,s),s.detectedPlanes&&i.dispatchEvent({type:"planesdetected",data:s}),p=null})),this.setAnimationLoop=function(t){P=t},this.dispose=function(){}}}const Vh=new dn,Wh=new en;function qh(t,e){function i(t,e){!0===t.matrixAutoUpdate&&t.updateMatrix(),e.value.copy(t.matrix)}function n(t,n){t.opacity.value=n.opacity,n.color&&t.diffuse.value.copy(n.color),n.emissive&&t.emissive.value.copy(n.emissive).multiplyScalar(n.emissiveIntensity),n.map&&(t.map.value=n.map,i(n.map,t.mapTransform)),n.alphaMap&&(t.alphaMap.value=n.alphaMap,i(n.alphaMap,t.alphaMapTransform)),n.bumpMap&&(t.bumpMap.value=n.bumpMap,i(n.bumpMap,t.bumpMapTransform),t.bumpScale.value=n.bumpScale,1===n.side&&(t.bumpScale.value*=-1)),n.normalMap&&(t.normalMap.value=n.normalMap,i(n.normalMap,t.normalMapTransform),t.normalScale.value.copy(n.normalScale),1===n.side&&t.normalScale.value.negate()),n.displacementMap&&(t.displacementMap.value=n.displacementMap,i(n.displacementMap,t.displacementMapTransform),t.displacementScale.value=n.displacementScale,t.displacementBias.value=n.displacementBias),n.emissiveMap&&(t.emissiveMap.value=n.emissiveMap,i(n.emissiveMap,t.emissiveMapTransform)),n.specularMap&&(t.specularMap.value=n.specularMap,i(n.specularMap,t.specularMapTransform)),n.alphaTest>0&&(t.alphaTest.value=n.alphaTest);const s=e.get(n),r=s.envMap,a=s.envMapRotation;r&&(t.envMap.value=r,Vh.copy(a),Vh.x*=-1,Vh.y*=-1,Vh.z*=-1,r.isCubeTexture&&!1===r.isRenderTargetTexture&&(Vh.y*=-1,Vh.z*=-1),t.envMapRotation.value.setFromMatrix4(Wh.makeRotationFromEuler(Vh)),t.flipEnvMap.value=r.isCubeTexture&&!1===r.isRenderTargetTexture?-1:1,t.reflectivity.value=n.reflectivity,t.ior.value=n.ior,t.refractionRatio.value=n.refractionRatio),n.lightMap&&(t.lightMap.value=n.lightMap,t.lightMapIntensity.value=n.lightMapIntensity,i(n.lightMap,t.lightMapTransform)),n.aoMap&&(t.aoMap.value=n.aoMap,t.aoMapIntensity.value=n.aoMapIntensity,i(n.aoMap,t.aoMapTransform))}return{refreshFogUniforms:function(e,i){i.color.getRGB(e.fogColor.value,Ls(t)),i.isFog?(e.fogNear.value=i.near,e.fogFar.value=i.far):i.isFogExp2&&(e.fogDensity.value=i.density)},refreshMaterialUniforms:function(t,s,r,a,o){s.isMeshBasicMaterial||s.isMeshLambertMaterial?n(t,s):s.isMeshToonMaterial?(n(t,s),function(t,e){e.gradientMap&&(t.gradientMap.value=e.gradientMap)}(t,s)):s.isMeshPhongMaterial?(n(t,s),function(t,e){t.specular.value.copy(e.specular),t.shininess.value=Math.max(e.shininess,1e-4)}(t,s)):s.isMeshStandardMaterial?(n(t,s),function(t,e){t.metalness.value=e.metalness,e.metalnessMap&&(t.metalnessMap.value=e.metalnessMap,i(e.metalnessMap,t.metalnessMapTransform));t.roughness.value=e.roughness,e.roughnessMap&&(t.roughnessMap.value=e.roughnessMap,i(e.roughnessMap,t.roughnessMapTransform));e.envMap&&(t.envMapIntensity.value=e.envMapIntensity)}(t,s),s.isMeshPhysicalMaterial&&function(t,e,n){t.ior.value=e.ior,e.sheen>0&&(t.sheenColor.value.copy(e.sheenColor).multiplyScalar(e.sheen),t.sheenRoughness.value=e.sheenRoughness,e.sheenColorMap&&(t.sheenColorMap.value=e.sheenColorMap,i(e.sheenColorMap,t.sheenColorMapTransform)),e.sheenRoughnessMap&&(t.sheenRoughnessMap.value=e.sheenRoughnessMap,i(e.sheenRoughnessMap,t.sheenRoughnessMapTransform)));e.clearcoat>0&&(t.clearcoat.value=e.clearcoat,t.clearcoatRoughness.value=e.clearcoatRoughness,e.clearcoatMap&&(t.clearcoatMap.value=e.clearcoatMap,i(e.clearcoatMap,t.clearcoatMapTransform)),e.clearcoatRoughnessMap&&(t.clearcoatRoughnessMap.value=e.clearcoatRoughnessMap,i(e.clearcoatRoughnessMap,t.clearcoatRoughnessMapTransform)),e.clearcoatNormalMap&&(t.clearcoatNormalMap.value=e.clearcoatNormalMap,i(e.clearcoatNormalMap,t.clearcoatNormalMapTransform),t.clearcoatNormalScale.value.copy(e.clearcoatNormalScale),1===e.side&&t.clearcoatNormalScale.value.negate()));e.dispersion>0&&(t.dispersion.value=e.dispersion);e.iridescence>0&&(t.iridescence.value=e.iridescence,t.iridescenceIOR.value=e.iridescenceIOR,t.iridescenceThicknessMinimum.value=e.iridescenceThicknessRange[0],t.iridescenceThicknessMaximum.value=e.iridescenceThicknessRange[1],e.iridescenceMap&&(t.iridescenceMap.value=e.iridescenceMap,i(e.iridescenceMap,t.iridescenceMapTransform)),e.iridescenceThicknessMap&&(t.iridescenceThicknessMap.value=e.iridescenceThicknessMap,i(e.iridescenceThicknessMap,t.iridescenceThicknessMapTransform)));e.transmission>0&&(t.transmission.value=e.transmission,t.transmissionSamplerMap.value=n.texture,t.transmissionSamplerSize.value.set(n.width,n.height),e.transmissionMap&&(t.transmissionMap.value=e.transmissionMap,i(e.transmissionMap,t.transmissionMapTransform)),t.thickness.value=e.thickness,e.thicknessMap&&(t.thicknessMap.value=e.thicknessMap,i(e.thicknessMap,t.thicknessMapTransform)),t.attenuationDistance.value=e.attenuationDistance,t.attenuationColor.value.copy(e.attenuationColor));e.anisotropy>0&&(t.anisotropyVector.value.set(e.anisotropy*Math.cos(e.anisotropyRotation),e.anisotropy*Math.sin(e.anisotropyRotation)),e.anisotropyMap&&(t.anisotropyMap.value=e.anisotropyMap,i(e.anisotropyMap,t.anisotropyMapTransform)));t.specularIntensity.value=e.specularIntensity,t.specularColor.value.copy(e.specularColor),e.specularColorMap&&(t.specularColorMap.value=e.specularColorMap,i(e.specularColorMap,t.specularColorMapTransform));e.specularIntensityMap&&(t.specularIntensityMap.value=e.specularIntensityMap,i(e.specularIntensityMap,t.specularIntensityMapTransform))}(t,s,o)):s.isMeshMatcapMaterial?(n(t,s),function(t,e){e.matcap&&(t.matcap.value=e.matcap)}(t,s)):s.isMeshDepthMaterial?n(t,s):s.isMeshDistanceMaterial?(n(t,s),function(t,i){const n=e.get(i).light;t.referencePosition.value.setFromMatrixPosition(n.matrixWorld),t.nearDistance.value=n.shadow.camera.near,t.farDistance.value=n.shadow.camera.far}(t,s)):s.isMeshNormalMaterial?n(t,s):s.isLineBasicMaterial?(function(t,e){t.diffuse.value.copy(e.color),t.opacity.value=e.opacity,e.map&&(t.map.value=e.map,i(e.map,t.mapTransform))}(t,s),s.isLineDashedMaterial&&function(t,e){t.dashSize.value=e.dashSize,t.totalSize.value=e.dashSize+e.gapSize,t.scale.value=e.scale}(t,s)):s.isPointsMaterial?function(t,e,n,s){t.diffuse.value.copy(e.color),t.opacity.value=e.opacity,t.size.value=e.size*n,t.scale.value=.5*s,e.map&&(t.map.value=e.map,i(e.map,t.uvTransform));e.alphaMap&&(t.alphaMap.value=e.alphaMap,i(e.alphaMap,t.alphaMapTransform));e.alphaTest>0&&(t.alphaTest.value=e.alphaTest)}(t,s,r,a):s.isSpriteMaterial?function(t,e){t.diffuse.value.copy(e.color),t.opacity.value=e.opacity,t.rotation.value=e.rotation,e.map&&(t.map.value=e.map,i(e.map,t.mapTransform));e.alphaMap&&(t.alphaMap.value=e.alphaMap,i(e.alphaMap,t.alphaMapTransform));e.alphaTest>0&&(t.alphaTest.value=e.alphaTest)}(t,s):s.isShadowMaterial?(t.color.value.copy(s.color),t.opacity.value=s.opacity):s.isShaderMaterial&&(s.uniformsNeedUpdate=!1)}}}function 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D,U;n.isShaderMaterial&&!0===n.uniformsNeedUpdate&&(eh.upload(Mt,Kt(v),B,et),n.uniformsNeedUpdate=!1);n.isSpriteMaterial&&T.setValue(Mt,"center",s.center);if(T.setValue(Mt,"modelViewMatrix",s.modelViewMatrix),T.setValue(Mt,"normalMatrix",s.normalMatrix),T.setValue(Mt,"modelMatrix",s.matrixWorld),n.isShaderMaterial||n.isRawShaderMaterial){const t=n.uniformsGroups;for(let e=0,i=t.length;e<i;e++){const i=t[e];It.update(i,_),It.bind(i,_)}}return _}(t,e,i,n,s);$.setMaterial(n,a);let l=i.index,c=1;if(!0===n.wireframe){if(l=rt.getWireframeAttribute(i),void 0===l)return;c=2}const h=i.drawRange,u=i.attributes.position;let d=h.start*c,p=(h.start+h.count)*c;null!==r&&(d=Math.max(d,r.start*c),p=Math.min(p,(r.start+r.count)*c)),null!==l?(d=Math.max(d,0),p=Math.min(p,l.count)):null!=u&&(d=Math.max(d,0),p=Math.min(p,u.count));const A=p-d;if(A<0||A===1/0)return;let m;wt.setup(s,n,o,i,l);let f=ft;if(null!==l&&(m=st.get(l),f=bt,f.setIndex(m)),s.isMesh)!0===n.wireframe?($.setLineWidth(n.wireframeLinewidth*Y()),f.setMode(Mt.LINES)):f.setMode(Mt.TRIANGLES);else if(s.isLine){let t=n.linewidth;void 0===t&&(t=1),$.setLineWidth(t*Y()),s.isLineSegments?f.setMode(Mt.LINES):s.isLineLoop?f.setMode(Mt.LINE_LOOP):f.setMode(Mt.LINE_STRIP)}else s.isPoints?f.setMode(Mt.POINTS):s.isSprite&&f.setMode(Mt.TRIANGLES);if(s.isBatchedMesh)if(null!==s._multiDrawInstances)ri("THREE.WebGLRenderer: renderMultiDrawInstances has been deprecated and will be removed in r184. 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f.render(d,A)},this.compile=function(t,e,i=null){null===i&&(i=t),g=ht.get(i),g.init(e),v.push(g),i.traverseVisible((function(t){t.isLight&&t.layers.test(e.layers)&&(g.pushLight(t),t.castShadow&&g.pushShadow(t))})),t!==i&&t.traverseVisible((function(t){t.isLight&&t.layers.test(e.layers)&&(g.pushLight(t),t.castShadow&&g.pushShadow(t))})),g.setupLights();const n=new Set;return t.traverse((function(t){if(!(t.isMesh||t.isPoints||t.isLine||t.isSprite))return;const e=t.material;if(e)if(Array.isArray(e))for(let s=0;s<e.length;s++){const r=e[s];Qt(r,i,t),n.add(r)}else Qt(e,i,t),n.add(e)})),g=v.pop(),n},this.compileAsync=function(t,e,i=null){const n=this.compile(t,e,i);return new Promise((e=>{function i(){n.forEach((function(t){tt.get(t).currentProgram.isReady()&&n.delete(t)})),0!==n.size?setTimeout(i,10):e(t)}null!==K.get("KHR_parallel_shader_compile")?i():setTimeout(i,10)}))};let kt=null;function Gt(){zt.stop()}function Ht(){zt.start()}const zt=new dl;function Vt(t,e,i,n){if(!1===t.visible)return;if(t.layers.test(e.layers))if(t.isGroup)i=t.renderOrder;else if(t.isLOD)!0===t.autoUpdate&&t.update(e);else if(t.isLight)g.pushLight(t),t.castShadow&&g.pushShadow(t);else if(t.isSprite){if(!t.frustumCulled||k.intersectsSprite(t)){n&&q.setFromMatrixPosition(t.matrixWorld).applyMatrix4(V);const e=at.update(t),s=t.material;s.visible&&m.push(t,e,s,i,q.z,null)}}else if((t.isMesh||t.isLine||t.isPoints)&&(!t.frustumCulled||k.intersectsObject(t))){const e=at.update(t),s=t.material;if(n&&(void 0!==t.boundingSphere?(null===t.boundingSphere&&t.computeBoundingSphere(),q.copy(t.boundingSphere.center)):(null===e.boundingSphere&&e.computeBoundingSphere(),q.copy(e.boundingSphere.center)),q.applyMatrix4(t.matrixWorld).applyMatrix4(V)),Array.isArray(s)){const n=e.groups;for(let r=0,a=n.length;r<a;r++){const a=n[r],o=s[a.materialIndex];o&&o.visible&&m.push(t,e,o,i,q.z,a)}}else s.visible&&m.push(t,e,s,i,q.z,null)}const s=t.children;for(let t=0,r=s.length;t<r;t++)Vt(s[t],e,i,n)}function Wt(t,e,i,n){const s=t.opaque,r=t.transmissive,a=t.transparent;g.setupLightsView(i),!0===G&&ut.setGlobalState(b.clippingPlanes,i),n&&$.viewport(I.copy(n)),s.length>0&&jt(s,e,i),r.length>0&&jt(r,e,i),a.length>0&&jt(a,e,i),$.buffers.depth.setTest(!0),$.buffers.depth.setMask(!0),$.buffers.color.setMask(!0),$.setPolygonOffset(!1)}function qt(t,e,i,n){if(null!==(!0===i.isScene?i.overrideMaterial:null))return;void 0===g.state.transmissionRenderTarget[n.id]&&(g.state.transmissionRenderTarget[n.id]=new xi(1,1,{generateMipmaps:!0,type:K.has("EXT_color_buffer_half_float")||K.has("EXT_color_buffer_float")?_t:mt,minFilter:At,samples:4,stencilBuffer:s,resolveDepthBuffer:!1,resolveStencilBuffer:!1,colorSpace:ci.workingColorSpace}));const r=g.state.transmissionRenderTarget[n.id],a=n.viewport||I;r.setSize(a.z*b.transmissionResolutionScale,a.w*b.transmissionResolutionScale);const o=b.getRenderTarget();b.setRenderTarget(r),b.getClearColor(B),R=b.getClearAlpha(),R<1&&b.setClearColor(16777215,.5),b.clear(),X&&pt.render(i);const l=b.toneMapping;b.toneMapping=0;const c=n.viewport;if(void 0!==n.viewport&&(n.viewport=void 0),g.setupLightsView(n),!0===G&&ut.setGlobalState(b.clippingPlanes,n),jt(t,i,n),et.updateMultisampleRenderTarget(r),et.updateRenderTargetMipmap(r),!1===K.has("WEBGL_multisampled_render_to_texture")){let t=!1;for(let s=0,r=e.length;s<r;s++){const r=e[s],a=r.object,o=r.geometry,l=r.material,c=r.group;if(2===l.side&&a.layers.test(n.layers)){const e=l.side;l.side=1,l.needsUpdate=!0,Xt(a,i,n,o,l,c),l.side=e,l.needsUpdate=!0,t=!0}}!0===t&&(et.updateMultisampleRenderTarget(r),et.updateRenderTargetMipmap(r))}b.setRenderTarget(o),b.setClearColor(B,R),void 0!==c&&(n.viewport=c),b.toneMapping=l}function jt(t,e,i){const n=!0===e.isScene?e.overrideMaterial:null;for(let s=0,r=t.length;s<r;s++){const r=t[s],a=r.object,o=r.geometry,l=null===n?r.material:n,c=r.group;a.layers.test(i.layers)&&Xt(a,e,i,o,l,c)}}function Xt(t,e,i,n,s,r){t.onBeforeRender(b,e,i,n,s,r),t.modelViewMatrix.multiplyMatrices(i.matrixWorldInverse,t.matrixWorld),t.normalMatrix.getNormalMatrix(t.modelViewMatrix),s.onBeforeRender(b,e,i,n,t,r),!0===s.transparent&&2===s.side&&!1===s.forceSinglePass?(s.side=1,s.needsUpdate=!0,b.renderBufferDirect(i,e,n,s,t,r),s.side=0,s.needsUpdate=!0,b.renderBufferDirect(i,e,n,s,t,r),s.side=2):b.renderBufferDirect(i,e,n,s,t,r),t.onAfterRender(b,e,i,n,s,r)}function Yt(t,e,i){!0!==e.isScene&&(e=j);const n=tt.get(t),s=g.state.lights,r=g.state.shadowsArray,a=s.state.version,o=ot.getParameters(t,s.state,r,e,i),l=ot.getProgramCacheKey(o);let c=n.programs;n.environment=t.isMeshStandardMaterial?e.environment:null,n.fog=e.fog,n.envMap=(t.isMeshStandardMaterial?nt:it).get(t.envMap||n.environment),n.envMapRotation=null!==n.environment&&null===t.envMap?e.environmentRotation:t.envMapRotation,void 0===c&&(t.addEventListener("dispose",Ot),c=new Map,n.programs=c);let h=c.get(l);if(void 0!==h){if(n.currentProgram===h&&n.lightsStateVersion===a)return Jt(t,o),h}else o.uniforms=ot.getUniforms(t),t.onBeforeCompile(o,b),h=ot.acquireProgram(o,l),c.set(l,h),n.uniforms=o.uniforms;const u=n.uniforms;return(t.isShaderMaterial||t.isRawShaderMaterial)&&!0!==t.clipping||(u.clippingPlanes=ut.uniform),Jt(t,o),n.needsLights=function(t){return 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e=Math.pow(2,-s);a=Math.floor(m.width*e),o=Math.floor(m.height*e),l=t.isDataArrayTexture?m.depth:t.isData3DTexture?Math.floor(m.depth*e):1,c=0,h=0,u=0}null!==n?(d=n.x,p=n.y,A=n.z):(d=0,p=0,A=0);const g=xt.convert(e.format),f=xt.convert(e.type);let v;e.isData3DTexture?(et.setTexture3D(e,0),v=Mt.TEXTURE_3D):e.isDataArrayTexture||e.isCompressedArrayTexture?(et.setTexture2DArray(e,0),v=Mt.TEXTURE_2D_ARRAY):(et.setTexture2D(e,0),v=Mt.TEXTURE_2D),Mt.pixelStorei(Mt.UNPACK_FLIP_Y_WEBGL,e.flipY),Mt.pixelStorei(Mt.UNPACK_PREMULTIPLY_ALPHA_WEBGL,e.premultiplyAlpha),Mt.pixelStorei(Mt.UNPACK_ALIGNMENT,e.unpackAlignment);const 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i=0;i<l;i++)S&&(Mt.framebufferTextureLayer(Mt.READ_FRAMEBUFFER,Mt.COLOR_ATTACHMENT0,tt.get(t).__webglTexture,s,u+i),Mt.framebufferTextureLayer(Mt.DRAW_FRAMEBUFFER,Mt.COLOR_ATTACHMENT0,tt.get(e).__webglTexture,r,A+i)),Mt.blitFramebuffer(c,h,a,o,d,p,a,o,Mt.DEPTH_BUFFER_BIT,Mt.NEAREST);$.bindFramebuffer(Mt.READ_FRAMEBUFFER,null),$.bindFramebuffer(Mt.DRAW_FRAMEBUFFER,null)}else if(0!==s||t.isRenderTargetTexture||tt.has(t)){const i=tt.get(t),n=tt.get(e);$.bindFramebuffer(Mt.READ_FRAMEBUFFER,Zt),$.bindFramebuffer(Mt.DRAW_FRAMEBUFFER,te);for(let t=0;t<l;t++)S?Mt.framebufferTextureLayer(Mt.READ_FRAMEBUFFER,Mt.COLOR_ATTACHMENT0,i.__webglTexture,s,u+t):Mt.framebufferTexture2D(Mt.READ_FRAMEBUFFER,Mt.COLOR_ATTACHMENT0,Mt.TEXTURE_2D,i.__webglTexture,s),C?Mt.framebufferTextureLayer(Mt.DRAW_FRAMEBUFFER,Mt.COLOR_ATTACHMENT0,n.__webglTexture,r,A+t):Mt.framebufferTexture2D(Mt.DRAW_FRAMEBUFFER,Mt.COLOR_ATTACHMENT0,Mt.TEXTURE_2D,n.__webglTexture,r),0!==s?Mt.blitFramebuffer(c,h,a,o,d,p,a,o,Mt.COLOR_BUFFER_BIT,Mt.NEAREST):C?Mt.copyTexSubImage3D(v,r,d,p,A+t,c,h,a,o):Mt.copyTexSubImage2D(v,r,d,p,c,h,a,o);$.bindFramebuffer(Mt.READ_FRAMEBUFFER,null),$.bindFramebuffer(Mt.DRAW_FRAMEBUFFER,null)}else 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this._$AA.parentNode.insertBefore(t,this._$AB)}T(t){this._$AH!==t&&(this._$AR(),this._$AH=this.O(t))}_(t){this._$AH!==gu&&su(this._$AH)?this._$AA.nextSibling.data=t:this.T(iu.createTextNode(t)),this._$AH=t}$(t){const{values:e,_$litType$:i}=t,n="number"==typeof i?this._$AC(t):(void 0===i.el&&(i.el=xu.createElement(bu(i.h,i.h[0]),this.options)),i);if(this._$AH?._$AD===n)this._$AH.p(e);else{const t=new Eu(n,this),i=t.u(this.options);t.p(e),this.T(i),this._$AH=t}}_$AC(t){let e=fu.get(t.strings);return void 0===e&&fu.set(t.strings,e=new xu(t)),e}k(e){ru(this._$AH)||(this._$AH=[],this._$AR());const i=this._$AH;let n,s=0;for(const r of e)s===i.length?i.push(n=new t(this.O(nu()),this.O(nu()),this,this.options)):n=i[s],n._$AI(r),s++;s<i.length&&(this._$AR(n&&n._$AB.nextSibling,s),i.length=s)}_$AR(t=this._$AA.nextSibling,e){for(this._$AP?.(!1,!0,e);t&&t!==this._$AB;){const e=t.nextSibling;t.remove(),t=e}}setConnected(t){void 0===this._$AM&&(this._$Cv=t,this._$AP?.(t))}};class Cu{get tagName(){return this.element.tagName}get _$AU(){return this._$AM._$AU}constructor(t,e,i,n,s){this.type=1,this._$AH=gu,this._$AN=void 0,this.element=t,this.name=e,this._$AM=n,this.options=s,i.length>2||""!==i[0]||""!==i[1]?(this._$AH=Array(i.length-1).fill(new String),this.strings=i):this._$AH=gu}_$AI(t,e=this,i,n){const s=this.strings;let r=!1;if(void 0===s)t=_u(this,t,e,0),r=!su(t)||t!==this._$AH&&t!==mu,r&&(this._$AH=t);else{const n=t;let a,o;for(t=s[0],a=0;a<s.length-1;a++)o=_u(this,n[i+a],e,a),o===mu&&(o=this._$AH[a]),r||=!su(o)||o!==this._$AH[a],o===gu?t=gu:t!==gu&&(t+=(o??"")+s[a+1]),this._$AH[a]=o}r&&!n&&this.j(t)}j(t){t===gu?this.element.removeAttribute(this.name):this.element.setAttribute(this.name,t??"")}}class wu extends Cu{constructor(){super(...arguments),this.type=3}j(t){this.element[this.name]=t===gu?void 0:t}}let Iu=class extends Cu{constructor(){super(...arguments),this.type=4}j(t){this.element.toggleAttribute(this.name,!!t&&t!==gu)}};class Mu extends Cu{constructor(t,e,i,n,s){super(t,e,i,n,s),this.type=5}_$AI(t,e=this){if((t=_u(this,t,e,0)??gu)===mu)return;const i=this._$AH,n=t===gu&&i!==gu||t.capture!==i.capture||t.once!==i.once||t.passive!==i.passive,s=t!==gu&&(i===gu||n);n&&this.element.removeEventListener(this.name,this,i),s&&this.element.addEventListener(this.name,this,t),this._$AH=t}handleEvent(t){"function"==typeof this._$AH?this._$AH.call(this.options?.host??this.element,t):this._$AH.handleEvent(t)}}class Tu{constructor(t,e,i){this.element=t,this.type=6,this._$AN=void 0,this._$AM=e,this.options=i}get _$AU(){return this._$AM._$AU}_$AI(t){_u(this,t)}}const Bu=Yh.litHtmlPolyfillSupport;Bu?.(xu,Su),(Yh.litHtmlVersions??=[]).push("3.2.1");const Ru=(t,e,i)=>{const n=i?.renderBefore??e;let s=n._$litPart$;if(void 0===s){const t=i?.renderBefore??null;n._$litPart$=s=new Su(e.insertBefore(nu(),t),t,void 0,i??{})}return s._$AI(t),s
/**
 * @license
 * Copyright 2017 Google LLC
 * SPDX-License-Identifier: BSD-3-Clause
 */};class Du extends y{constructor(){super(...arguments),this.renderOptions={host:this},this._$Do=void 0}createRenderRoot(){const t=super.createRenderRoot();return this.renderOptions.renderBefore??=t.firstChild,t}update(t){const e=this.render();this.hasUpdated||(this.renderOptions.isConnected=this.isConnected),super.update(t),this._$Do=Ru(e,this.renderRoot,this.renderOptions)}connectedCallback(){super.connectedCallback(),this._$Do?.setConnected(!0)}disconnectedCallback(){super.disconnectedCallback(),this._$Do?.setConnected(!1)}render(){return mu}}Du._$litElement$=!0,Du.finalized=!0,globalThis.litElementHydrateSupport?.({LitElement:Du});const Lu=globalThis.litElementPolyfillSupport;Lu?.({LitElement:Du}),(globalThis.litElementVersions??=[]).push("4.1.1");
/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
const Pu=null!=navigator.xr&&null!=self.XRSession&&null!=navigator.xr.isSessionSupported,Uu=Pu&&null!=self.XRSession.prototype.requestHitTestSource,Fu=null!=self.ResizeObserver,Nu=null!=self.IntersectionObserver,Ou=Uu;(()=>{const t=navigator.userAgent||navigator.vendor||self.opera;let e=!1;(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(t)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(t.substr(0,4)))&&(e=!0)})();const Qu=/android/i.test(navigator.userAgent),ku=/iPad|iPhone|iPod/.test(navigator.userAgent)&&!self.MSStream||"MacIntel"===navigator.platform&&navigator.maxTouchPoints>1,Gu=/firefox/i.test(navigator.userAgent),Hu=/OculusBrowser/.test(navigator.userAgent),zu=Qu&&!Gu&&!Hu,Vu=Boolean(window.webkit&&window.webkit.messageHandlers),Wu=(()=>{if(ku){if(Vu)return Boolean(/CriOS\/|EdgiOS\/|FxiOS\/|GSA\/|DuckDuckGo\//.test(navigator.userAgent));{const t=document.createElement("a");return Boolean(t.relList&&t.relList.supports&&t.relList.supports("ar"))}}return!1})(),qu=t=>t&&"null"!==t?Xu(t):null,ju=()=>{if(Ou)return;const t=[];throw Pu||t.push("WebXR Device API"),Uu||t.push("WebXR Hit Test API"),new Error(`The following APIs are required for AR, but are missing in this browser: ${t.join(", ")}`)},Xu=t=>new URL(t,window.location.toString()).toString(),Yu=(t,e)=>{let i=null;return(...n)=>{null!=i&&self.clearTimeout(i),i=self.setTimeout((()=>{i=null,t(...n)}),e)}},Ku=(t,e,i)=>Math.max(e,Math.min(i,t)),Ju=(()=>{const t=new RegExp("[?&]model-viewer-debug-mode(&|$)");return()=>self.ModelViewerElement&&self.ModelViewerElement.debugMode||self.location&&self.location.search&&self.location.search.match(t)})();
/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
var $u=function(t,e,i,n){for(var s,r=arguments.length,a=r<3?e:null===n?n=Object.getOwnPropertyDescriptor(e,i):n,o=t.length-1;o>=0;o--)(s=t[o])&&(a=(r<3?s(a):r>3?s(e,i,a):s(e,i))||a);return r>3&&a&&Object.defineProperty(e,i,a),a};const Zu=Symbol("currentEnvironmentMap"),td=Symbol("currentBackground"),ed=Symbol("updateEnvironment"),id=Symbol("cancelEnvironmentUpdate");
/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
const nd=Au`
<style>
:host {
  display: block;
  position: relative;
  contain: strict;
  width: 300px;
  height: 150px;
}

.container {
  position: relative;
  overflow: hidden;
}

.userInput {
  width: 100%;
  height: 100%;
  display: none;
  position: relative;
  outline-offset: -1px;
  outline-width: 1px;
}

canvas {
  position: absolute;
  display: none;
  pointer-events: none;
  /* NOTE(cdata): Chrome 76 and below apparently have a bug
   * that causes our canvas not to display pixels unless it is
   * on its own render layer
   * @see https://github.com/google/model-viewer/pull/755#issuecomment-536597893
   */
  transform: translateZ(0);
}

.show {
  display: block;
}

/* Adapted from HTML5 Boilerplate
 *
 * @see https://github.com/h5bp/html5-boilerplate/blob/ceb4620c78fc82e13534fc44202a3f168754873f/dist/css/main.css#L122-L133 */
.screen-reader-only {
  border: 0;
  left: 0;
  top: 0;
  clip: rect(0, 0, 0, 0);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  white-space: nowrap;
  width: 1px;
  pointer-events: none;
}

.slot {
  position: absolute;
  pointer-events: none;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.slot > * {
  pointer-events: initial;
}

.annotation-wrapper ::slotted(*) {
  opacity: var(--max-hotspot-opacity, 1);
  transition: opacity 0.3s;
}

.pointer-tumbling .annotation-wrapper ::slotted(*) {
  pointer-events: none;
}

.annotation-wrapper ::slotted(*) {
  pointer-events: initial;
}

.annotation-wrapper.hide ::slotted(*) {
  opacity: var(--min-hotspot-opacity, 0.25);
}

.slot.poster {
  display: none;
  background-color: inherit;
}

.slot.poster.show {
  display: inherit;
}

.slot.poster > * {
  pointer-events: initial;
}

.slot.poster:not(.show) > * {
  pointer-events: none;
}

#default-poster {
  width: 100%;
  height: 100%;
  /* The default poster is a <button> so we need to set display
   * to prevent it from being affected by text-align: */
  display: block;
  position: absolute;
  border: none;
  padding: 0;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  background-color: #fff0;
}

#default-progress-bar {
  display: block;
  position: relative;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: hidden;
}

#default-progress-bar > .bar {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--progress-bar-height, 5px);
  background-color: var(--progress-bar-color, rgba(0, 0, 0, 0.4));
  transition: transform 0.09s;
  transform-origin: top left;
  transform: scaleX(0);
  overflow: hidden;
}

#default-progress-bar > .bar.hide {
  transition: opacity 0.3s 1s;
  opacity: 0;
}

.centered {
  align-items: center;
  justify-content: center;
}

.cover {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.slot.interaction-prompt {
  display: var(--interaction-prompt-display, flex);
  overflow: hidden;
  opacity: 0;
  will-change: opacity;
  transition: opacity 0.3s;
}

.slot.interaction-prompt.visible {
  opacity: 1;
}

.animated-container {
  will-change: transform, opacity;
  opacity: 0;
  transition: opacity 0.3s;
}

.slot.interaction-prompt > * {
  pointer-events: none;
}

.slot.ar-button {
  -moz-user-select: none;
  -webkit-tap-highlight-color: transparent;
  user-select: none;

  display: var(--ar-button-display, block);
}

.slot.ar-button:not(.enabled) {
  display: none;
}

.fab {
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  width: 40px;
  height: 40px;
  cursor: pointer;
  background-color: #fff;
  box-shadow: 0px 0px 4px rgba(0, 0, 0, 0.15);
  border-radius: 100px;
}

.fab > * {
  opacity: 0.87;
}

#default-ar-button {
  position: absolute;
  bottom: 16px;
  right: 16px;
  transform: scale(var(--ar-button-scale, 1));
  transform-origin: bottom right;
}

.slot.pan-target {
  display: block;
  position: absolute;
  width: 0;
  height: 0;
  left: 50%;
  top: 50%;
  transform: translate3d(-50%, -50%, 0);
  background-color: transparent;
  opacity: 0;
  transition: opacity 0.3s;
}

#default-pan-target {
  width: 6px;
  height: 6px;
  border-radius: 6px;
  border: 1px solid white;
  box-shadow: 0px 0px 2px 1px rgba(0, 0, 0, 0.8);
}

.slot.default {
  pointer-events: none;
}

.slot.progress-bar {
  pointer-events: none;
}

.slot.exit-webxr-ar-button {
  pointer-events: none;
}

.slot.exit-webxr-ar-button:not(.enabled) {
  display: none;
}

#default-exit-webxr-ar-button {
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  top: env(safe-area-inset-top, 16px);
  right: 16px;
  width: 40px;
  height: 40px;
  box-sizing: border-box;
}

#default-exit-webxr-ar-button > svg {
  fill: #fff;
}
</style>
<div class="container">
  <div class="userInput" tabindex="0" role="img"
      aria-label="3D model">
      <div class="slot canvas">
        <slot name="canvas">
          <canvas></canvas>
        </slot>
      </div>

  </div>

  <!-- NOTE(cdata): We need to wrap slots because browsers without ShadowDOM
        will have their <slot> elements removed by ShadyCSS -->
  <div class="slot poster">
    <slot name="poster">
      <button type="button" id="default-poster" aria-hidden="true" aria-label="Loading 3D model"></button>
    </slot>
  </div>

  <div class="slot ar-button">
    <slot name="ar-button">
      <a id="default-ar-button" part="default-ar-button" class="fab"
          tabindex="2"
          role="button"
          href="javascript:void(0);"
          aria-label="View in your space">
        ${Au`
<svg version="1.1" id="view_x5F_in_x5F_AR_x5F_icon"
	 xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="24px" height="24px"
	 viewBox="0 0 24 24" enable-background="new 0 0 24 24" xml:space="preserve">
<rect id="Bounding_Box" x="0" y="0" fill="none" width="24" height="24"/>
<g id="Art_layer">
	<path d="M3,4c0-0.55,0.45-1,1-1h2V1H4C2.35,1,1,2.35,1,4v2h2V4z"/>
	<path d="M20,3c0.55,0,1,0.45,1,1v2h2V4c0-1.65-1.35-3-3-3h-2v2H20z"/>
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  <div class="slot interaction-prompt cover centered">
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        ${Au`
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/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */}
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            aria-label="Exit AR"
            aria-hidden="true">
          ${Au`
<svg xmlns="http://www.w3.org/2000/svg" width="24px" height="24px" viewBox="0 0 24 24" fill="#000000">
    <!-- NOTE(cdata): This SVG filter is a stop-gap until we can implement
         support for dynamic re-coloring of UI components -->
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/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */}
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</div>
<div class="screen-reader-only" role="region" aria-label="Live announcements">
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Promise((function(e){t.onModuleLoaded=function(t){e({draco:t})},DracoDecoderModule(t)}));break;case"decode":const n=s.buffer,r=s.taskConfig;e.then((t=>{const e=t.draco,a=new e.Decoder;try{const t=function(t,e,n,s){const r=s.attributeIDs,a=s.attributeTypes;let o,l;const c=e.GetEncodedGeometryType(n);if(c===t.TRIANGULAR_MESH)o=new t.Mesh,l=e.DecodeArrayToMesh(n,n.byteLength,o);else{if(c!==t.POINT_CLOUD)throw new Error("THREE.DRACOLoader: Unexpected geometry type.");o=new t.PointCloud,l=e.DecodeArrayToPointCloud(n,n.byteLength,o)}if(!l.ok()||0===o.ptr)throw new Error("THREE.DRACOLoader: Decoding failed: "+l.error_msg());const h={index:null,attributes:[]};for(const n in r){const l=self[a[n]];let c,u;if(s.useUniqueIDs)u=r[n],c=e.GetAttributeByUniqueId(o,u);else{if(u=e.GetAttributeId(o,t[r[n]]),-1===u)continue;c=e.GetAttribute(o,u)}const d=i(t,e,o,n,l,c);"color"===n&&(d.vertexColorSpace=s.vertexColorSpace),h.attributes.push(d)}c===t.TRIANGULAR_MESH&&(h.index=function(t,e,i){const n=i.num_faces(),s=3*n,r=4*s,a=t._malloc(r);e.GetTrianglesUInt32Array(i,r,a);const o=new Uint32Array(t.HEAPF32.buffer,a,s).slice();return t._free(a),{array:o,itemSize:1}}(t,e,o));return t.destroy(o),h}(e,a,new Int8Array(n),r),o=t.attributes.map((t=>t.array.buffer));t.index&&o.push(t.index.array.buffer),self.postMessage({type:"decode",id:s.id,geometry:t},o)}catch(t){console.error(t),self.postMessage({type:"error",id:s.id,error:t.message})}finally{e.destroy(a)}}))}}}function od(t,e){if(0===e)return console.warn("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Geometry already defined as triangles."),t;if(2===e||1===e){let i=t.getIndex();if(null===i){const e=[],n=t.getAttribute("position");if(void 0===n)return console.error("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Undefined position attribute. Processing not possible."),t;for(let t=0;t<n.count;t++)e.push(t);t.setIndex(e),i=t.getIndex()}const n=i.count-2,s=[];if(2===e)for(let t=1;t<=n;t++)s.push(i.getX(0)),s.push(i.getX(t)),s.push(i.getX(t+1));else for(let t=0;t<n;t++)t%2==0?(s.push(i.getX(t)),s.push(i.getX(t+1)),s.push(i.getX(t+2))):(s.push(i.getX(t+2)),s.push(i.getX(t+1)),s.push(i.getX(t)));s.length/3!==n&&console.error("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Unable to generate correct amount of triangles.");const r=t.clone();return r.setIndex(s),r.clearGroups(),r}return console.error("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Unknown draw mode:",e),t}class ld extends Eo{constructor(t){super(t),this.dracoLoader=null,this.ktx2Loader=null,this.meshoptDecoder=null,this.pluginCallbacks=[],this.register((function(t){return new Ad(t)})),this.register((function(t){return new md(t)})),this.register((function(t){return new Sd(t)})),this.register((function(t){return new Cd(t)})),this.register((function(t){return new wd(t)})),this.register((function(t){return new fd(t)})),this.register((function(t){return new vd(t)})),this.register((function(t){return new bd(t)})),this.register((function(t){return new yd(t)})),this.register((function(t){return new pd(t)})),this.register((function(t){return new xd(t)})),this.register((function(t){return new gd(t)})),this.register((function(t){return new Ed(t)})),this.register((function(t){return new _d(t)})),this.register((function(t){return new ud(t)})),this.register((function(t){return new Id(t)})),this.register((function(t){return new Md(t)}))}load(t,e,i,n){const s=this;let r;if(""!==this.resourcePath)r=this.resourcePath;else if(""!==this.path){const e=jo.extractUrlBase(t);r=jo.resolveURL(e,this.path)}else r=jo.extractUrlBase(t);this.manager.itemStart(t);const a=function(e){n?n(e):console.error(e),s.manager.itemError(t),s.manager.itemEnd(t)},o=new wo(this.manager);o.setPath(this.path),o.setResponseType("arraybuffer"),o.setRequestHeader(this.requestHeader),o.setWithCredentials(this.withCredentials),o.load(t,(function(i){try{s.parse(i,r,(function(i){e(i),s.manager.itemEnd(t)}),a)}catch(t){a(t)}}),i,a)}setDRACOLoader(t){return this.dracoLoader=t,this}setKTX2Loader(t){return this.ktx2Loader=t,this}setMeshoptDecoder(t){return this.meshoptDecoder=t,this}register(t){return-1===this.pluginCallbacks.indexOf(t)&&this.pluginCallbacks.push(t),this}unregister(t){return-1!==this.pluginCallbacks.indexOf(t)&&this.pluginCallbacks.splice(this.pluginCallbacks.indexOf(t),1),this}parse(t,e,i,n){let s;const r={},a={},o=new TextDecoder;if("string"==typeof t)s=JSON.parse(t);else if(t instanceof ArrayBuffer){if(o.decode(new Uint8Array(t,0,4))===Td){try{r[hd.KHR_BINARY_GLTF]=new Dd(t)}catch(t){return void(n&&n(t))}s=JSON.parse(r[hd.KHR_BINARY_GLTF].content)}else s=JSON.parse(o.decode(t))}else s=t;if(void 0===s.asset||s.asset.version[0]<2)return void(n&&n(new Error("THREE.GLTFLoader: Unsupported asset. glTF versions >=2.0 are supported.")));const l=new sp(s,{path:e||this.resourcePath||"",crossOrigin:this.crossOrigin,requestHeader:this.requestHeader,manager:this.manager,ktx2Loader:this.ktx2Loader,meshoptDecoder:this.meshoptDecoder});l.fileLoader.setRequestHeader(this.requestHeader);for(let t=0;t<this.pluginCallbacks.length;t++){const e=this.pluginCallbacks[t](l);e.name||console.error("THREE.GLTFLoader: Invalid plugin found: missing name"),a[e.name]=e,r[e.name]=!0}if(s.extensionsUsed)for(let t=0;t<s.extensionsUsed.length;++t){const e=s.extensionsUsed[t],i=s.extensionsRequired||[];switch(e){case hd.KHR_MATERIALS_UNLIT:r[e]=new dd;break;case hd.KHR_DRACO_MESH_COMPRESSION:r[e]=new Ld(s,this.dracoLoader);break;case hd.KHR_TEXTURE_TRANSFORM:r[e]=new Pd;break;case hd.KHR_MESH_QUANTIZATION:r[e]=new Ud;break;default:i.indexOf(e)>=0&&void 0===a[e]&&console.warn('THREE.GLTFLoader: Unknown extension "'+e+'".')}}l.setExtensions(r),l.setPlugins(a),l.parse(i,n)}parseAsync(t,e){const i=this;return new Promise((function(n,s){i.parse(t,e,n,s)}))}}function cd(){let t={};return{get:function(e){return t[e]},add:function(e,i){t[e]=i},remove:function(e){delete t[e]},removeAll:function(){t={}}}}const hd={KHR_BINARY_GLTF:"KHR_binary_glTF",KHR_DRACO_MESH_COMPRESSION:"KHR_draco_mesh_compression",KHR_LIGHTS_PUNCTUAL:"KHR_lights_punctual",KHR_MATERIALS_CLEARCOAT:"KHR_materials_clearcoat",KHR_MATERIALS_DISPERSION:"KHR_materials_dispersion",KHR_MATERIALS_IOR:"KHR_materials_ior",KHR_MATERIALS_SHEEN:"KHR_materials_sheen",KHR_MATERIALS_SPECULAR:"KHR_materials_specular",KHR_MATERIALS_TRANSMISSION:"KHR_materials_transmission",KHR_MATERIALS_IRIDESCENCE:"KHR_materials_iridescence",KHR_MATERIALS_ANISOTROPY:"KHR_materials_anisotropy",KHR_MATERIALS_UNLIT:"KHR_materials_unlit",KHR_MATERIALS_VOLUME:"KHR_materials_volume",KHR_TEXTURE_BASISU:"KHR_texture_basisu",KHR_TEXTURE_TRANSFORM:"KHR_texture_transform",KHR_MESH_QUANTIZATION:"KHR_mesh_quantization",KHR_MATERIALS_EMISSIVE_STRENGTH:"KHR_materials_emissive_strength",EXT_MATERIALS_BUMP:"EXT_materials_bump",EXT_TEXTURE_WEBP:"EXT_texture_webp",EXT_TEXTURE_AVIF:"EXT_texture_avif",EXT_MESHOPT_COMPRESSION:"EXT_meshopt_compression",EXT_MESH_GPU_INSTANCING:"EXT_mesh_gpu_instancing"};class ud{constructor(t){this.parser=t,this.name=hd.KHR_LIGHTS_PUNCTUAL,this.cache={refs:{},uses:{}}}_markDefs(){const t=this.parser,e=this.parser.json.nodes||[];for(let i=0,n=e.length;i<n;i++){const n=e[i];n.extensions&&n.extensions[this.name]&&void 0!==n.extensions[this.name].light&&t._addNodeRef(this.cache,n.extensions[this.name].light)}}_loadLight(t){const e=this.parser,i="light:"+t;let n=e.cache.get(i);if(n)return n;const s=e.json,r=((s.extensions&&s.extensions[this.name]||{}).lights||[])[t];let a;const o=new Xn(16777215);void 0!==r.color&&o.setRGB(r.color[0],r.color[1],r.color[2],Se);const l=void 0!==r.range?r.range:0;switch(r.type){case"directional":a=new Vo(o),a.target.position.set(0,0,-1),a.add(a.target);break;case"point":a=new Go(o),a.distance=l;break;case"spot":a=new Fo(o),a.distance=l,r.spot=r.spot||{},r.spot.innerConeAngle=void 0!==r.spot.innerConeAngle?r.spot.innerConeAngle:0,r.spot.outerConeAngle=void 0!==r.spot.outerConeAngle?r.spot.outerConeAngle:Math.PI/4,a.angle=r.spot.outerConeAngle,a.penumbra=1-r.spot.innerConeAngle/r.spot.outerConeAngle,a.target.position.set(0,0,-1),a.add(a.target);break;default:throw new Error("THREE.GLTFLoader: Unexpected light type: "+r.type)}return a.position.set(0,0,0),$d(a,r),void 0!==r.intensity&&(a.intensity=r.intensity),a.name=e.createUniqueName(r.name||"light_"+t),n=Promise.resolve(a),e.cache.add(i,n),n}getDependency(t,e){if("light"===t)return this._loadLight(e)}createNodeAttachment(t){const e=this,i=this.parser,n=i.json.nodes[t],s=(n.extensions&&n.extensions[this.name]||{}).light;return void 0===s?null:this._loadLight(s).then((function(t){return i._getNodeRef(e.cache,s,t)}))}}let dd=class{constructor(){this.name=hd.KHR_MATERIALS_UNLIT}getMaterialType(){return $n}extendParams(t,e,i){const n=[];t.color=new Xn(1,1,1),t.opacity=1;const s=e.pbrMetallicRoughness;if(s){if(Array.isArray(s.baseColorFactor)){const e=s.baseColorFactor;t.color.setRGB(e[0],e[1],e[2],Se),t.opacity=e[3]}void 0!==s.baseColorTexture&&n.push(i.assignTexture(t,"map",s.baseColorTexture,Ee))}return Promise.all(n)}},pd=class{constructor(t){this.parser=t,this.name=hd.KHR_MATERIALS_EMISSIVE_STRENGTH}extendMaterialParams(t,e){const i=this.parser.json.materials[t];if(!i.extensions||!i.extensions[this.name])return Promise.resolve();const n=i.extensions[this.name].emissiveStrength;return void 0!==n&&(e.emissiveIntensity=n),Promise.resolve()}},Ad=class{constructor(t){this.parser=t,this.name=hd.KHR_MATERIALS_CLEARCOAT}getMaterialType(t){const e=this.parser.json.materials[t];return e.extensions&&e.extensions[this.name]?$a:null}extendMaterialParams(t,e){const i=this.parser,n=i.json.materials[t];if(!n.extensions||!n.extensions[this.name])return Promise.resolve();const s=[],r=n.extensions[this.name];if(void 0!==r.clearcoatFactor&&(e.clearcoat=r.clearcoatFactor),void 0!==r.clearcoatTexture&&s.push(i.assignTexture(e,"clearcoatMap",r.clearcoatTexture)),void 0!==r.clearcoatRoughnessFactor&&(e.clearcoatRoughness=r.clearcoatRoughnessFactor),void 0!==r.clearcoatRoughnessTexture&&s.push(i.assignTexture(e,"clearcoatRoughnessMap",r.clearcoatRoughnessTexture)),void 0!==r.clearcoatNormalTexture&&(s.push(i.assignTexture(e,"clearcoatNormalMap",r.clearcoatNormalTexture)),void 0!==r.clearcoatNormalTexture.scale)){const t=r.clearcoatNormalTexture.scale;e.clearcoatNormalScale=new $e(t,t)}return Promise.all(s)}},md=class{constructor(t){this.parser=t,this.name=hd.KHR_MATERIALS_DISPERSION}getMaterialType(t){const e=this.parser.json.materials[t];return e.extensions&&e.extensions[this.name]?$a:null}extendMaterialParams(t,e){const i=this.parser.json.materials[t];if(!i.extensions||!i.extensions[this.name])return Promise.resolve();const n=i.extensions[this.name];return e.dispersion=void 0!==n.dispersion?n.dispersion:0,Promise.resolve()}},gd=class{constructor(t){this.parser=t,this.name=hd.KHR_MATERIALS_IRIDESCENCE}getMaterialType(t){const e=this.parser.json.materials[t];return e.extensions&&e.extensions[this.name]?$a:null}extendMaterialParams(t,e){const i=this.parser,n=i.json.materials[t];if(!n.extensions||!n.extensions[this.name])return Promise.resolve();const s=[],r=n.extensions[this.name];return void 0!==r.iridescenceFactor&&(e.iridescence=r.iridescenceFactor),void 0!==r.iridescenceTexture&&s.push(i.assignTexture(e,"iridescenceMap",r.iridescenceTexture)),void 0!==r.iridescenceIor&&(e.iridescenceIOR=r.iridescenceIor),void 0===e.iridescenceThicknessRange&&(e.iridescenceThicknessRange=[100,400]),void 0!==r.iridescenceThicknessMinimum&&(e.iridescenceThicknessRange[0]=r.iridescenceThicknessMinimum),void 0!==r.iridescenceThicknessMaximum&&(e.iridescenceThicknessRange[1]=r.iridescenceThicknessMaximum),void 0!==r.iridescenceThicknessTexture&&s.push(i.assignTexture(e,"iridescenceThicknessMap",r.iridescenceThicknessTexture)),Promise.all(s)}},fd=class{constructor(t){this.parser=t,this.name=hd.KHR_MATERIALS_SHEEN}getMaterialType(t){const e=this.parser.json.materials[t];return e.extensions&&e.extensions[this.name]?$a:null}extendMaterialParams(t,e){const i=this.parser,n=i.json.materials[t];if(!n.extensions||!n.extensions[this.name])return Promise.resolve();const s=[];e.sheenColor=new Xn(0,0,0),e.sheenRoughness=0,e.sheen=1;const r=n.extensions[this.name];if(void 0!==r.sheenColorFactor){const t=r.sheenColorFactor;e.sheenColor.setRGB(t[0],t[1],t[2],Se)}return void 0!==r.sheenRoughnessFactor&&(e.sheenRoughness=r.sheenRoughnessFactor),void 0!==r.sheenColorTexture&&s.push(i.assignTexture(e,"sheenColorMap",r.sheenColorTexture,Ee)),void 0!==r.sheenRoughnessTexture&&s.push(i.assignTexture(e,"sheenRoughnessMap",r.sheenRoughnessTexture)),Promise.all(s)}},vd=class{constructor(t){this.parser=t,this.name=hd.KHR_MATERIALS_TRANSMISSION}getMaterialType(t){const e=this.parser.json.materials[t];return e.extensions&&e.extensions[this.name]?$a:null}extendMaterialParams(t,e){const i=this.parser,n=i.json.materials[t];if(!n.extensions||!n.extensions[this.name])return Promise.resolve();const s=[],r=n.extensions[this.name];return void 0!==r.transmissionFactor&&(e.transmission=r.transmissionFactor),void 0!==r.transmissionTexture&&s.push(i.assignTexture(e,"transmissionMap",r.transmissionTexture)),Promise.all(s)}},bd=class{constructor(t){this.parser=t,this.name=hd.KHR_MATERIALS_VOLUME}getMaterialType(t){const e=this.parser.json.materials[t];return e.extensions&&e.extensions[this.name]?$a:null}extendMaterialParams(t,e){const i=this.parser,n=i.json.materials[t];if(!n.extensions||!n.extensions[this.name])return Promise.resolve();const s=[],r=n.extensions[this.name];e.thickness=void 0!==r.thicknessFactor?r.thicknessFactor:0,void 0!==r.thicknessTexture&&s.push(i.assignTexture(e,"thicknessMap",r.thicknessTexture)),e.attenuationDistance=r.attenuationDistance||1/0;const a=r.attenuationColor||[1,1,1];return e.attenuationColor=(new Xn).setRGB(a[0],a[1],a[2],Se),Promise.all(s)}},yd=class{constructor(t){this.parser=t,this.name=hd.KHR_MATERIALS_IOR}getMaterialType(t){const e=this.parser.json.materials[t];return e.extensions&&e.extensions[this.name]?$a:null}extendMaterialParams(t,e){const i=this.parser.json.materials[t];if(!i.extensions||!i.extensions[this.name])return Promise.resolve();const n=i.extensions[this.name];return e.ior=void 0!==n.ior?n.ior:1.5,Promise.resolve()}},xd=class{constructor(t){this.parser=t,this.name=hd.KHR_MATERIALS_SPECULAR}getMaterialType(t){const e=this.parser.json.materials[t];return e.extensions&&e.extensions[this.name]?$a:null}extendMaterialParams(t,e){const i=this.parser,n=i.json.materials[t];if(!n.extensions||!n.extensions[this.name])return Promise.resolve();const s=[],r=n.extensions[this.name];e.specularIntensity=void 0!==r.specularFactor?r.specularFactor:1,void 0!==r.specularTexture&&s.push(i.assignTexture(e,"specularIntensityMap",r.specularTexture));const a=r.specularColorFactor||[1,1,1];return e.specularColor=(new Xn).setRGB(a[0],a[1],a[2],Se),void 0!==r.specularColorTexture&&s.push(i.assignTexture(e,"specularColorMap",r.specularColorTexture,Ee)),Promise.all(s)}},_d=class{constructor(t){this.parser=t,this.name=hd.EXT_MATERIALS_BUMP}getMaterialType(t){const e=this.parser.json.materials[t];return e.extensions&&e.extensions[this.name]?$a:null}extendMaterialParams(t,e){const i=this.parser,n=i.json.materials[t];if(!n.extensions||!n.extensions[this.name])return Promise.resolve();const s=[],r=n.extensions[this.name];return e.bumpScale=void 0!==r.bumpFactor?r.bumpFactor:1,void 0!==r.bumpTexture&&s.push(i.assignTexture(e,"bumpMap",r.bumpTexture)),Promise.all(s)}},Ed=class{constructor(t){this.parser=t,this.name=hd.KHR_MATERIALS_ANISOTROPY}getMaterialType(t){const e=this.parser.json.materials[t];return e.extensions&&e.extensions[this.name]?$a:null}extendMaterialParams(t,e){const i=this.parser,n=i.json.materials[t];if(!n.extensions||!n.extensions[this.name])return Promise.resolve();const s=[],r=n.extensions[this.name];return void 0!==r.anisotropyStrength&&(e.anisotropy=r.anisotropyStrength),void 0!==r.anisotropyRotation&&(e.anisotropyRotation=r.anisotropyRotation),void 0!==r.anisotropyTexture&&s.push(i.assignTexture(e,"anisotropyMap",r.anisotropyTexture)),Promise.all(s)}};class Sd{constructor(t){this.parser=t,this.name=hd.KHR_TEXTURE_BASISU}loadTexture(t){const e=this.parser,i=e.json,n=i.textures[t];if(!n.extensions||!n.extensions[this.name])return null;const s=n.extensions[this.name],r=e.options.ktx2Loader;if(!r){if(i.extensionsRequired&&i.extensionsRequired.indexOf(this.name)>=0)throw new Error("THREE.GLTFLoader: setKTX2Loader must be called before loading KTX2 textures");return null}return e.loadTextureImage(t,s.source,r)}}class Cd{constructor(t){this.parser=t,this.name=hd.EXT_TEXTURE_WEBP,this.isSupported=null}loadTexture(t){const e=this.name,i=this.parser,n=i.json,s=n.textures[t];if(!s.extensions||!s.extensions[e])return null;const r=s.extensions[e],a=n.images[r.source];let o=i.textureLoader;if(a.uri){const t=i.options.manager.getHandler(a.uri);null!==t&&(o=t)}return this.detectSupport().then((function(s){if(s)return i.loadTextureImage(t,r.source,o);if(n.extensionsRequired&&n.extensionsRequired.indexOf(e)>=0)throw new Error("THREE.GLTFLoader: WebP required by asset but unsupported.");return i.loadTexture(t)}))}detectSupport(){return this.isSupported||(this.isSupported=new Promise((function(t){const e=new Image;e.src="data:image/webp;base64,UklGRiIAAABXRUJQVlA4IBYAAAAwAQCdASoBAAEADsD+JaQAA3AAAAAA",e.onload=e.onerror=function(){t(1===e.height)}}))),this.isSupported}}class wd{constructor(t){this.parser=t,this.name=hd.EXT_TEXTURE_AVIF,this.isSupported=null}loadTexture(t){const e=this.name,i=this.parser,n=i.json,s=n.textures[t];if(!s.extensions||!s.extensions[e])return null;const r=s.extensions[e],a=n.images[r.source];let o=i.textureLoader;if(a.uri){const t=i.options.manager.getHandler(a.uri);null!==t&&(o=t)}return this.detectSupport().then((function(s){if(s)return i.loadTextureImage(t,r.source,o);if(n.extensionsRequired&&n.extensionsRequired.indexOf(e)>=0)throw new Error("THREE.GLTFLoader: AVIF required by asset but unsupported.");return i.loadTexture(t)}))}detectSupport(){return this.isSupported||(this.isSupported=new Promise((function(t){const e=new Image;e.src="data:image/avif;base64,AAAAIGZ0eXBhdmlmAAAAAGF2aWZtaWYxbWlhZk1BMUIAAADybWV0YQAAAAAAAAAoaGRscgAAAAAAAAAAcGljdAAAAAAAAAAAAAAAAGxpYmF2aWYAAAAADnBpdG0AAAAAAAEAAAAeaWxvYwAAAABEAAABAAEAAAABAAABGgAAABcAAAAoaWluZgAAAAAAAQAAABppbmZlAgAAAAABAABhdjAxQ29sb3IAAAAAamlwcnAAAABLaXBjbwAAABRpc3BlAAAAAAAAAAEAAAABAAAAEHBpeGkAAAAAAwgICAAAAAxhdjFDgQAMAAAAABNjb2xybmNseAACAAIABoAAAAAXaXBtYQAAAAAAAAABAAEEAQKDBAAAAB9tZGF0EgAKCBgABogQEDQgMgkQAAAAB8dSLfI=",e.onload=e.onerror=function(){t(1===e.height)}}))),this.isSupported}}class Id{constructor(t){this.name=hd.EXT_MESHOPT_COMPRESSION,this.parser=t}loadBufferView(t){const e=this.parser.json,i=e.bufferViews[t];if(i.extensions&&i.extensions[this.name]){const t=i.extensions[this.name],n=this.parser.getDependency("buffer",t.buffer),s=this.parser.options.meshoptDecoder;if(!s||!s.supported){if(e.extensionsRequired&&e.extensionsRequired.indexOf(this.name)>=0)throw new Error("THREE.GLTFLoader: setMeshoptDecoder must be called before loading compressed files");return null}return n.then((function(e){const i=t.byteOffset||0,n=t.byteLength||0,r=t.count,a=t.byteStride,o=new Uint8Array(e,i,n);return s.decodeGltfBufferAsync?s.decodeGltfBufferAsync(r,a,o,t.mode,t.filter).then((function(t){return t.buffer})):s.ready.then((function(){const e=new ArrayBuffer(r*a);return s.decodeGltfBuffer(new Uint8Array(e),r,a,o,t.mode,t.filter),e}))}))}return null}}let Md=class{constructor(t){this.name=hd.EXT_MESH_GPU_INSTANCING,this.parser=t}createNodeMesh(t){const e=this.parser.json,i=e.nodes[t];if(!i.extensions||!i.extensions[this.name]||void 0===i.mesh)return null;const n=e.meshes[i.mesh];for(const t of n.primitives)if(t.mode!==Qd.TRIANGLES&&t.mode!==Qd.TRIANGLE_STRIP&&t.mode!==Qd.TRIANGLE_FAN&&void 0!==t.mode)return null;const s=i.extensions[this.name].attributes,r=[],a={};for(const t in s)r.push(this.parser.getDependency("accessor",s[t]).then((e=>(a[t]=e,a[t]))));return r.length<1?null:(r.push(this.parser.createNodeMesh(t)),Promise.all(r).then((t=>{const e=t.pop(),i=e.isGroup?e.children:[e],n=t[0].count,s=[];for(const t of i){const e=new en,i=new Ci,r=new Si,o=new Ci(1,1,1),l=new xr(t.geometry,t.material,n);for(let t=0;t<n;t++)a.TRANSLATION&&i.fromBufferAttribute(a.TRANSLATION,t),a.ROTATION&&r.fromBufferAttribute(a.ROTATION,t),a.SCALE&&o.fromBufferAttribute(a.SCALE,t),l.setMatrixAt(t,e.compose(i,r,o));for(const e in a)if("_COLOR_0"===e){const t=a[e];l.instanceColor=new pr(t.array,t.itemSize,t.normalized)}else"TRANSLATION"!==e&&"ROTATION"!==e&&"SCALE"!==e&&t.geometry.setAttribute(e,a[e]);Tn.prototype.copy.call(l,t),this.parser.assignFinalMaterial(l),s.push(l)}return e.isGroup?(e.clear(),e.add(...s),e):s[0]})))}};const Td="glTF",Bd=1313821514,Rd=5130562;class Dd{constructor(t){this.name=hd.KHR_BINARY_GLTF,this.content=null,this.body=null;const e=new DataView(t,0,12),i=new TextDecoder;if(this.header={magic:i.decode(new Uint8Array(t.slice(0,4))),version:e.getUint32(4,!0),length:e.getUint32(8,!0)},this.header.magic!==Td)throw new Error("THREE.GLTFLoader: Unsupported glTF-Binary header.");if(this.header.version<2)throw new Error("THREE.GLTFLoader: Legacy binary file detected.");const n=this.header.length-12,s=new DataView(t,12);let r=0;for(;r<n;){const e=s.getUint32(r,!0);r+=4;const n=s.getUint32(r,!0);if(r+=4,n===Bd){const n=new Uint8Array(t,12+r,e);this.content=i.decode(n)}else if(n===Rd){const i=12+r;this.body=t.slice(i,i+e)}r+=e}if(null===this.content)throw new Error("THREE.GLTFLoader: JSON content not found.")}}class Ld{constructor(t,e){if(!e)throw new Error("THREE.GLTFLoader: No DRACOLoader instance provided.");this.name=hd.KHR_DRACO_MESH_COMPRESSION,this.json=t,this.dracoLoader=e,this.dracoLoader.preload()}decodePrimitive(t,e){const i=this.json,n=this.dracoLoader,s=t.extensions[this.name].bufferView,r=t.extensions[this.name].attributes,a={},o={},l={};for(const t in r){const e=Vd[t]||t.toLowerCase();a[e]=r[t]}for(const e in t.attributes){const n=Vd[e]||e.toLowerCase();if(void 0!==r[e]){const s=i.accessors[t.attributes[e]],r=kd[s.componentType];l[n]=r.name,o[n]=!0===s.normalized}}return e.getDependency("bufferView",s).then((function(t){return new Promise((function(e,i){n.decodeDracoFile(t,(function(t){for(const e in t.attributes){const i=t.attributes[e],n=o[e];void 0!==n&&(i.normalized=n)}e(t)}),a,l,Se,i)}))}))}}class Pd{constructor(){this.name=hd.KHR_TEXTURE_TRANSFORM}extendTexture(t,e){return void 0!==e.texCoord&&e.texCoord!==t.channel||void 0!==e.offset||void 0!==e.rotation||void 0!==e.scale?(t=t.clone(),void 0!==e.texCoord&&(t.channel=e.texCoord),void 0!==e.offset&&t.offset.fromArray(e.offset),void 0!==e.rotation&&(t.rotation=e.rotation),void 0!==e.scale&&t.repeat.fromArray(e.scale),t.needsUpdate=!0,t):t}}class Ud{constructor(){this.name=hd.KHR_MESH_QUANTIZATION}}class Fd extends ro{constructor(t,e,i,n){super(t,e,i,n)}copySampleValue_(t){const e=this.resultBuffer,i=this.sampleValues,n=this.valueSize,s=t*n*3+n;for(let t=0;t!==n;t++)e[t]=i[s+t];return e}interpolate_(t,e,i,n){const s=this.resultBuffer,r=this.sampleValues,a=this.valueSize,o=2*a,l=3*a,c=n-e,h=(i-e)/c,u=h*h,d=u*h,p=t*l,A=p-l,m=-2*d+3*u,g=d-u,f=1-m,v=g-u+h;for(let t=0;t!==a;t++){const e=r[A+t+a],i=r[A+t+o]*c,n=r[p+t+a],l=r[p+t]*c;s[t]=f*e+v*i+m*n+g*l}return s}}const Nd=new Si;class Od extends Fd{interpolate_(t,e,i,n){const s=super.interpolate_(t,e,i,n);return Nd.fromArray(s).normalize().toArray(s),s}}const Qd={POINTS:0,LINES:1,LINE_LOOP:2,LINE_STRIP:3,TRIANGLES:4,TRIANGLE_STRIP:5,TRIANGLE_FAN:6},kd={5120:Int8Array,5121:Uint8Array,5122:Int16Array,5123:Uint16Array,5125:Uint32Array,5126:Float32Array},Gd={9728:ct,9729:dt,9984:ht,9985:pt,9986:ut,9987:At},Hd={33071:ot,33648:lt,10497:at},zd={SCALAR:1,VEC2:2,VEC3:3,VEC4:4,MAT2:4,MAT3:9,MAT4:16},Vd={POSITION:"position",NORMAL:"normal",TANGENT:"tangent",TEXCOORD_0:"uv",TEXCOORD_1:"uv1",TEXCOORD_2:"uv2",TEXCOORD_3:"uv3",COLOR_0:"color",WEIGHTS_0:"skinWeight",JOINTS_0:"skinIndex"},Wd={scale:"scale",translation:"position",rotation:"quaternion",weights:"morphTargetInfluences"},qd={CUBICSPLINE:void 0,LINEAR:ge,STEP:me},jd="OPAQUE",Xd="MASK",Yd="BLEND";function Kd(t){return void 0===t.DefaultMaterial&&(t.DefaultMaterial=new Ja({color:16777215,emissive:0,metalness:1,roughness:1,transparent:!1,depthTest:!0,side:0})),t.DefaultMaterial}function Jd(t,e,i){for(const n in i.extensions)void 0===t[n]&&(e.userData.gltfExtensions=e.userData.gltfExtensions||{},e.userData.gltfExtensions[n]=i.extensions[n])}function $d(t,e){void 0!==e.extras&&("object"==typeof e.extras?Object.assign(t.userData,e.extras):console.warn("THREE.GLTFLoader: Ignoring primitive type .extras, "+e.extras))}function Zd(t,e){if(t.updateMorphTargets(),void 0!==e.weights)for(let i=0,n=e.weights.length;i<n;i++)t.morphTargetInfluences[i]=e.weights[i];if(e.extras&&Array.isArray(e.extras.targetNames)){const i=e.extras.targetNames;if(t.morphTargetInfluences.length===i.length){t.morphTargetDictionary={};for(let e=0,n=i.length;e<n;e++)t.morphTargetDictionary[i[e]]=e}else console.warn("THREE.GLTFLoader: Invalid extras.targetNames length. Ignoring names.")}}function tp(t){let e;const i=t.extensions&&t.extensions[hd.KHR_DRACO_MESH_COMPRESSION];if(e=i?"draco:"+i.bufferView+":"+i.indices+":"+ep(i.attributes):t.indices+":"+ep(t.attributes)+":"+t.mode,void 0!==t.targets)for(let i=0,n=t.targets.length;i<n;i++)e+=":"+ep(t.targets[i]);return e}function ep(t){let e="";const i=Object.keys(t).sort();for(let n=0,s=i.length;n<s;n++)e+=i[n]+":"+t[i[n]]+";";return e}function ip(t){switch(t){case Int8Array:return 1/127;case Uint8Array:return 1/255;case Int16Array:return 1/32767;case Uint16Array:return 1/65535;default:throw new Error("THREE.GLTFLoader: Unsupported normalized accessor component type.")}}const np=new en;class sp{constructor(t={},e={}){this.json=t,this.extensions={},this.plugins={},this.options=e,this.cache=new cd,this.associations=new Map,this.primitiveCache={},this.nodeCache={},this.meshCache={refs:{},uses:{}},this.cameraCache={refs:{},uses:{}},this.lightCache={refs:{},uses:{}},this.sourceCache={},this.textureCache={},this.nodeNamesUsed={};let i=!1,n=-1,s=!1,r=-1;if("undefined"!=typeof navigator){const t=navigator.userAgent;i=!0===/^((?!chrome|android).)*safari/i.test(t);const e=t.match(/Version\/(\d+)/);n=i&&e?parseInt(e[1],10):-1,s=t.indexOf("Firefox")>-1,r=s?t.match(/Firefox\/([0-9]+)\./)[1]:-1}"undefined"==typeof createImageBitmap||i&&n<17||s&&r<98?this.textureLoader=new To(this.options.manager):this.textureLoader=new Xo(this.options.manager),this.textureLoader.setCrossOrigin(this.options.crossOrigin),this.textureLoader.setRequestHeader(this.options.requestHeader),this.fileLoader=new wo(this.options.manager),this.fileLoader.setResponseType("arraybuffer"),"use-credentials"===this.options.crossOrigin&&this.fileLoader.setWithCredentials(!0)}setExtensions(t){this.extensions=t}setPlugins(t){this.plugins=t}parse(t,e){const i=this,n=this.json,s=this.extensions;this.cache.removeAll(),this.nodeCache={},this._invokeAll((function(t){return t._markDefs&&t._markDefs()})),Promise.all(this._invokeAll((function(t){return t.beforeRoot&&t.beforeRoot()}))).then((function(){return Promise.all([i.getDependencies("scene"),i.getDependencies("animation"),i.getDependencies("camera")])})).then((function(e){const r={scene:e[0][n.scene||0],scenes:e[0],animations:e[1],cameras:e[2],asset:n.asset,parser:i,userData:{}};return Jd(s,r,n),$d(r,n),Promise.all(i._invokeAll((function(t){return t.afterRoot&&t.afterRoot(r)}))).then((function(){for(const t of r.scenes)t.updateMatrixWorld();t(r)}))})).catch(e)}_markDefs(){const t=this.json.nodes||[],e=this.json.skins||[],i=this.json.meshes||[];for(let i=0,n=e.length;i<n;i++){const n=e[i].joints;for(let e=0,i=n.length;e<i;e++)t[n[e]].isBone=!0}for(let e=0,n=t.length;e<n;e++){const n=t[e];void 0!==n.mesh&&(this._addNodeRef(this.meshCache,n.mesh),void 0!==n.skin&&(i[n.mesh].isSkinnedMesh=!0)),void 0!==n.camera&&this._addNodeRef(this.cameraCache,n.camera)}}_addNodeRef(t,e){void 0!==e&&(void 0===t.refs[e]&&(t.refs[e]=t.uses[e]=0),t.refs[e]++)}_getNodeRef(t,e,i){if(t.refs[e]<=1)return i;const n=i.clone(),s=(t,e)=>{const i=this.associations.get(t);null!=i&&this.associations.set(e,i);for(const[i,n]of t.children.entries())s(n,e.children[i])};return s(i,n),n.name+="_instance_"+t.uses[e]++,n}_invokeOne(t){const e=Object.values(this.plugins);e.push(this);for(let i=0;i<e.length;i++){const n=t(e[i]);if(n)return n}return null}_invokeAll(t){const e=Object.values(this.plugins);e.unshift(this);const i=[];for(let n=0;n<e.length;n++){const s=t(e[n]);s&&i.push(s)}return i}getDependency(t,e){const i=t+":"+e;let n=this.cache.get(i);if(!n){switch(t){case"scene":n=this.loadScene(e);break;case"node":n=this._invokeOne((function(t){return t.loadNode&&t.loadNode(e)}));break;case"mesh":n=this._invokeOne((function(t){return t.loadMesh&&t.loadMesh(e)}));break;case"accessor":n=this.loadAccessor(e);break;case"bufferView":n=this._invokeOne((function(t){return t.loadBufferView&&t.loadBufferView(e)}));break;case"buffer":n=this.loadBuffer(e);break;case"material":n=this._invokeOne((function(t){return t.loadMaterial&&t.loadMaterial(e)}));break;case"texture":n=this._invokeOne((function(t){return t.loadTexture&&t.loadTexture(e)}));break;case"skin":n=this.loadSkin(e);break;case"animation":n=this._invokeOne((function(t){return t.loadAnimation&&t.loadAnimation(e)}));break;case"camera":n=this.loadCamera(e);break;default:if(n=this._invokeOne((function(i){return i!=this&&i.getDependency&&i.getDependency(t,e)})),!n)throw new Error("Unknown type: "+t)}this.cache.add(i,n)}return n}getDependencies(t){let e=this.cache.get(t);if(!e){const i=this,n=this.json[t+("mesh"===t?"es":"s")]||[];e=Promise.all(n.map((function(e,n){return i.getDependency(t,n)}))),this.cache.add(t,e)}return e}loadBuffer(t){const e=this.json.buffers[t],i=this.fileLoader;if(e.type&&"arraybuffer"!==e.type)throw new Error("THREE.GLTFLoader: "+e.type+" buffer type is not supported.");if(void 0===e.uri&&0===t)return Promise.resolve(this.extensions[hd.KHR_BINARY_GLTF].body);const n=this.options;return new Promise((function(t,s){i.load(jo.resolveURL(e.uri,n.path),t,void 0,(function(){s(new Error('THREE.GLTFLoader: Failed to load buffer "'+e.uri+'".'))}))}))}loadBufferView(t){const e=this.json.bufferViews[t];return this.getDependency("buffer",e.buffer).then((function(t){const i=e.byteLength||0,n=e.byteOffset||0;return t.slice(n,n+i)}))}loadAccessor(t){const e=this,i=this.json,n=this.json.accessors[t];if(void 0===n.bufferView&&void 0===n.sparse){const t=zd[n.type],e=kd[n.componentType],i=!0===n.normalized,s=new e(n.count*t);return Promise.resolve(new rs(s,t,i))}const s=[];return void 0!==n.bufferView?s.push(this.getDependency("bufferView",n.bufferView)):s.push(null),void 0!==n.sparse&&(s.push(this.getDependency("bufferView",n.sparse.indices.bufferView)),s.push(this.getDependency("bufferView",n.sparse.values.bufferView))),Promise.all(s).then((function(t){const s=t[0],r=zd[n.type],a=kd[n.componentType],o=a.BYTES_PER_ELEMENT,l=o*r,c=n.byteOffset||0,h=void 0!==n.bufferView?i.bufferViews[n.bufferView].byteStride:void 0,u=!0===n.normalized;let d,p;if(h&&h!==l){const t=Math.floor(c/h),i="InterleavedBuffer:"+n.bufferView+":"+n.componentType+":"+t+":"+n.count;let l=e.cache.get(i);l||(d=new a(s,t*h,n.count*h/o),l=new Ys(d,h/o),e.cache.add(i,l)),p=new Js(l,r,c%h/o,u)}else d=null===s?new a(n.count*r):new a(s,c,n.count*r),p=new rs(d,r,u);if(void 0!==n.sparse){const e=zd.SCALAR,i=kd[n.sparse.indices.componentType],o=n.sparse.indices.byteOffset||0,l=n.sparse.values.byteOffset||0,c=new i(t[1],o,n.sparse.count*e),h=new a(t[2],l,n.sparse.count*r);null!==s&&(p=new rs(p.array.slice(),p.itemSize,p.normalized)),p.normalized=!1;for(let t=0,e=c.length;t<e;t++){const e=c[t];if(p.setX(e,h[t*r]),r>=2&&p.setY(e,h[t*r+1]),r>=3&&p.setZ(e,h[t*r+2]),r>=4&&p.setW(e,h[t*r+3]),r>=5)throw new Error("THREE.GLTFLoader: Unsupported itemSize in sparse BufferAttribute.")}p.normalized=u}return p}))}loadTexture(t){const e=this.json,i=this.options,n=e.textures[t].source,s=e.images[n];let r=this.textureLoader;if(s.uri){const t=i.manager.getHandler(s.uri);null!==t&&(r=t)}return this.loadTextureImage(t,n,r)}loadTextureImage(t,e,i){const n=this,s=this.json,r=s.textures[t],a=s.images[e],o=(a.uri||a.bufferView)+":"+r.sampler;if(this.textureCache[o])return this.textureCache[o];const l=this.loadImageSource(e,i).then((function(e){e.flipY=!1,e.name=r.name||a.name||"",""===e.name&&"string"==typeof a.uri&&!1===a.uri.startsWith("data:image/")&&(e.name=a.uri);const i=(s.samplers||{})[r.sampler]||{};return e.magFilter=Gd[i.magFilter]||dt,e.minFilter=Gd[i.minFilter]||At,e.wrapS=Hd[i.wrapS]||at,e.wrapT=Hd[i.wrapT]||at,e.generateMipmaps=!e.isCompressedTexture&&e.minFilter!==ct&&e.minFilter!==dt,n.associations.set(e,{textures:t}),e})).catch((function(){return null}));return this.textureCache[o]=l,l}loadImageSource(t,e){const i=this,n=this.json,s=this.options;if(void 0!==this.sourceCache[t])return this.sourceCache[t].then((t=>t.clone()));const r=n.images[t],a=self.URL||self.webkitURL;let o=r.uri||"",l=!1;if(void 0!==r.bufferView)o=i.getDependency("bufferView",r.bufferView).then((function(t){l=!0;const e=new Blob([t],{type:r.mimeType});return o=a.createObjectURL(e),o}));else if(void 0===r.uri)throw new Error("THREE.GLTFLoader: Image "+t+" is missing URI and bufferView");const c=Promise.resolve(o).then((function(t){return new Promise((function(i,n){let r=i;!0===e.isImageBitmapLoader&&(r=function(t){const e=new vi(t);e.needsUpdate=!0,i(e)}),e.load(jo.resolveURL(t,s.path),r,void 0,n)}))})).then((function(t){var e;return!0===l&&a.revokeObjectURL(o),$d(t,r),t.userData.mimeType=r.mimeType||((e=r.uri).search(/\.jpe?g($|\?)/i)>0||0===e.search(/^data\:image\/jpeg/)?"image/jpeg":e.search(/\.webp($|\?)/i)>0||0===e.search(/^data\:image\/webp/)?"image/webp":e.search(/\.ktx2($|\?)/i)>0||0===e.search(/^data\:image\/ktx2/)?"image/ktx2":"image/png"),t})).catch((function(t){throw console.error("THREE.GLTFLoader: Couldn't load texture",o),t}));return this.sourceCache[t]=c,c}assignTexture(t,e,i,n){const s=this;return this.getDependency("texture",i.index).then((function(r){if(!r)return null;if(void 0!==i.texCoord&&i.texCoord>0&&((r=r.clone()).channel=i.texCoord),s.extensions[hd.KHR_TEXTURE_TRANSFORM]){const t=void 0!==i.extensions?i.extensions[hd.KHR_TEXTURE_TRANSFORM]:void 0;if(t){const e=s.associations.get(r);r=s.extensions[hd.KHR_TEXTURE_TRANSFORM].extendTexture(r,t),s.associations.set(r,e)}}return void 0!==n&&(r.colorSpace=n),t[e]=r,r}))}assignFinalMaterial(t){const e=t.geometry;let i=t.material;const n=void 0===e.attributes.tangent,s=void 0!==e.attributes.color,r=void 0===e.attributes.normal;if(t.isPoints){const t="PointsMaterial:"+i.uuid;let e=this.cache.get(t);e||(e=new zr,Jn.prototype.copy.call(e,i),e.color.copy(i.color),e.map=i.map,e.sizeAttenuation=!1,this.cache.add(t,e)),i=e}else if(t.isLine){const t="LineBasicMaterial:"+i.uuid;let e=this.cache.get(t);e||(e=new Tr,Jn.prototype.copy.call(e,i),e.color.copy(i.color),e.map=i.map,this.cache.add(t,e)),i=e}if(n||s||r){let t="ClonedMaterial:"+i.uuid+":";n&&(t+="derivative-tangents:"),s&&(t+="vertex-colors:"),r&&(t+="flat-shading:");let e=this.cache.get(t);e||(e=i.clone(),s&&(e.vertexColors=!0),r&&(e.flatShading=!0),n&&(e.normalScale&&(e.normalScale.y*=-1),e.clearcoatNormalScale&&(e.clearcoatNormalScale.y*=-1)),this.cache.add(t,e),this.associations.set(e,this.associations.get(i))),i=e}t.material=i}getMaterialType(){return Ja}loadMaterial(t){const e=this,i=this.json,n=this.extensions,s=i.materials[t];let r;const a={},o=[];if((s.extensions||{})[hd.KHR_MATERIALS_UNLIT]){const t=n[hd.KHR_MATERIALS_UNLIT];r=t.getMaterialType(),o.push(t.extendParams(a,s,e))}else{const i=s.pbrMetallicRoughness||{};if(a.color=new Xn(1,1,1),a.opacity=1,Array.isArray(i.baseColorFactor)){const t=i.baseColorFactor;a.color.setRGB(t[0],t[1],t[2],Se),a.opacity=t[3]}void 0!==i.baseColorTexture&&o.push(e.assignTexture(a,"map",i.baseColorTexture,Ee)),a.metalness=void 0!==i.metallicFactor?i.metallicFactor:1,a.roughness=void 0!==i.roughnessFactor?i.roughnessFactor:1,void 0!==i.metallicRoughnessTexture&&(o.push(e.assignTexture(a,"metalnessMap",i.metallicRoughnessTexture)),o.push(e.assignTexture(a,"roughnessMap",i.metallicRoughnessTexture))),r=this._invokeOne((function(e){return e.getMaterialType&&e.getMaterialType(t)})),o.push(Promise.all(this._invokeAll((function(e){return e.extendMaterialParams&&e.extendMaterialParams(t,a)}))))}!0===s.doubleSided&&(a.side=2);const l=s.alphaMode||jd;if(l===Yd?(a.transparent=!0,a.depthWrite=!1):(a.transparent=!1,l===Xd&&(a.alphaTest=void 0!==s.alphaCutoff?s.alphaCutoff:.5)),void 0!==s.normalTexture&&r!==$n&&(o.push(e.assignTexture(a,"normalMap",s.normalTexture)),a.normalScale=new $e(1,1),void 0!==s.normalTexture.scale)){const t=s.normalTexture.scale;a.normalScale.set(t,t)}if(void 0!==s.occlusionTexture&&r!==$n&&(o.push(e.assignTexture(a,"aoMap",s.occlusionTexture)),void 0!==s.occlusionTexture.strength&&(a.aoMapIntensity=s.occlusionTexture.strength)),void 0!==s.emissiveFactor&&r!==$n){const t=s.emissiveFactor;a.emissive=(new Xn).setRGB(t[0],t[1],t[2],Se)}return void 0!==s.emissiveTexture&&r!==$n&&o.push(e.assignTexture(a,"emissiveMap",s.emissiveTexture,Ee)),Promise.all(o).then((function(){const i=new r(a);return s.name&&(i.name=s.name),$d(i,s),e.associations.set(i,{materials:t}),s.extensions&&Jd(n,i,s),i}))}createUniqueName(t){const e=nl.sanitizeNodeName(t||"");return e in this.nodeNamesUsed?e+"_"+ ++this.nodeNamesUsed[e]:(this.nodeNamesUsed[e]=0,e)}loadGeometries(t){const e=this,i=this.extensions,n=this.primitiveCache;function s(t){return i[hd.KHR_DRACO_MESH_COMPRESSION].decodePrimitive(t,e).then((function(i){return rp(i,t,e)}))}const r=[];for(let i=0,a=t.length;i<a;i++){const a=t[i],o=tp(a),l=n[o];if(l)r.push(l.promise);else{let t;t=a.extensions&&a.extensions[hd.KHR_DRACO_MESH_COMPRESSION]?s(a):rp(new gs,a,e),n[o]={primitive:a,promise:t},r.push(t)}}return Promise.all(r)}loadMesh(t){const e=this,i=this.json,n=this.extensions,s=i.meshes[t],r=s.primitives,a=[];for(let t=0,e=r.length;t<e;t++){const e=void 0===r[t].material?Kd(this.cache):this.getDependency("material",r[t].material);a.push(e)}return a.push(e.loadGeometries(r)),Promise.all(a).then((function(i){const a=i.slice(0,i.length-1),o=i[i.length-1],l=[];for(let i=0,c=o.length;i<c;i++){const c=o[i],h=r[i];let u;const d=a[i];if(h.mode===Qd.TRIANGLES||h.mode===Qd.TRIANGLE_STRIP||h.mode===Qd.TRIANGLE_FAN||void 0===h.mode)u=!0===s.isSkinnedMesh?new or(c,d):new Ms(c,d),!0===u.isSkinnedMesh&&u.normalizeSkinWeights(),h.mode===Qd.TRIANGLE_STRIP?u.geometry=od(u.geometry,1):h.mode===Qd.TRIANGLE_FAN&&(u.geometry=od(u.geometry,2));else if(h.mode===Qd.LINES)u=new Gr(c,d);else if(h.mode===Qd.LINE_STRIP)u=new Nr(c,d);else if(h.mode===Qd.LINE_LOOP)u=new Hr(c,d);else{if(h.mode!==Qd.POINTS)throw new Error("THREE.GLTFLoader: Primitive mode unsupported: "+h.mode);u=new Xr(c,d)}Object.keys(u.geometry.morphAttributes).length>0&&Zd(u,s),u.name=e.createUniqueName(s.name||"mesh_"+t),$d(u,s),h.extensions&&Jd(n,u,h),e.assignFinalMaterial(u),l.push(u)}for(let i=0,n=l.length;i<n;i++)e.associations.set(l[i],{meshes:t,primitives:i});if(1===l.length)return s.extensions&&Jd(n,l[0],s),l[0];const c=new Ws;s.extensions&&Jd(n,c,s),e.associations.set(c,{meshes:t});for(let t=0,e=l.length;t<e;t++)c.add(l[t]);return c}))}loadCamera(t){let e;const i=this.json.cameras[t],n=i[i.type];if(n)return"perspective"===i.type?e=new ks(Je.radToDeg(n.yfov),n.aspectRatio||1,n.znear||1,n.zfar||2e6):"orthographic"===i.type&&(e=new Ho(-n.xmag,n.xmag,n.ymag,-n.ymag,n.znear,n.zfar)),i.name&&(e.name=this.createUniqueName(i.name)),$d(e,i),Promise.resolve(e);console.warn("THREE.GLTFLoader: Missing camera parameters.")}loadSkin(t){const e=this.json.skins[t],i=[];for(let t=0,n=e.joints.length;t<n;t++)i.push(this._loadNodeShallow(e.joints[t]));return void 0!==e.inverseBindMatrices?i.push(this.getDependency("accessor",e.inverseBindMatrices)):i.push(null),Promise.all(i).then((function(t){const i=t.pop(),n=t,s=[],r=[];for(let t=0,a=n.length;t<a;t++){const a=n[t];if(a){s.push(a);const e=new en;null!==i&&e.fromArray(i.array,16*t),r.push(e)}else console.warn('THREE.GLTFLoader: Joint "%s" could not be found.',e.joints[t])}return new dr(s,r)}))}loadAnimation(t){const e=this.json,i=this,n=e.animations[t],s=n.name?n.name:"animation_"+t,r=[],a=[],o=[],l=[],c=[];for(let t=0,e=n.channels.length;t<e;t++){const e=n.channels[t],i=n.samplers[e.sampler],s=e.target,h=s.node,u=void 0!==n.parameters?n.parameters[i.input]:i.input,d=void 0!==n.parameters?n.parameters[i.output]:i.output;void 0!==s.node&&(r.push(this.getDependency("node",h)),a.push(this.getDependency("accessor",u)),o.push(this.getDependency("accessor",d)),l.push(i),c.push(s))}return Promise.all([Promise.all(r),Promise.all(a),Promise.all(o),Promise.all(l),Promise.all(c)]).then((function(t){const e=t[0],n=t[1],r=t[2],a=t[3],o=t[4],l=[];for(let t=0,s=e.length;t<s;t++){const s=e[t],c=n[t],h=r[t],u=a[t],d=o[t];if(void 0===s)continue;s.updateMatrix&&s.updateMatrix();const p=i._createAnimationTracks(s,c,h,u,d);if(p)for(let t=0;t<p.length;t++)l.push(p[t])}return new vo(s,void 0,l)}))}createNodeMesh(t){const e=this.json,i=this,n=e.nodes[t];return void 0===n.mesh?null:i.getDependency("mesh",n.mesh).then((function(t){const e=i._getNodeRef(i.meshCache,n.mesh,t);return void 0!==n.weights&&e.traverse((function(t){if(t.isMesh)for(let e=0,i=n.weights.length;e<i;e++)t.morphTargetInfluences[e]=n.weights[e]})),e}))}loadNode(t){const e=this,i=this.json.nodes[t],n=e._loadNodeShallow(t),s=[],r=i.children||[];for(let t=0,i=r.length;t<i;t++)s.push(e.getDependency("node",r[t]));const a=void 0===i.skin?Promise.resolve(null):e.getDependency("skin",i.skin);return Promise.all([n,Promise.all(s),a]).then((function(t){const e=t[0],i=t[1],n=t[2];null!==n&&e.traverse((function(t){t.isSkinnedMesh&&t.bind(n,np)}));for(let t=0,n=i.length;t<n;t++)e.add(i[t]);return e}))}_loadNodeShallow(t){const e=this.json,i=this.extensions,n=this;if(void 0!==this.nodeCache[t])return this.nodeCache[t];const s=e.nodes[t],r=s.name?n.createUniqueName(s.name):"",a=[],o=n._invokeOne((function(e){return e.createNodeMesh&&e.createNodeMesh(t)}));return o&&a.push(o),void 0!==s.camera&&a.push(n.getDependency("camera",s.camera).then((function(t){return n._getNodeRef(n.cameraCache,s.camera,t)}))),n._invokeAll((function(e){return e.createNodeAttachment&&e.createNodeAttachment(t)})).forEach((function(t){a.push(t)})),this.nodeCache[t]=Promise.all(a).then((function(e){let a;if(a=!0===s.isBone?new lr:e.length>1?new Ws:1===e.length?e[0]:new Tn,a!==e[0])for(let t=0,i=e.length;t<i;t++)a.add(e[t]);if(s.name&&(a.userData.name=s.name,a.name=r),$d(a,s),s.extensions&&Jd(i,a,s),void 0!==s.matrix){const t=new en;t.fromArray(s.matrix),a.applyMatrix4(t)}else void 0!==s.translation&&a.position.fromArray(s.translation),void 0!==s.rotation&&a.quaternion.fromArray(s.rotation),void 0!==s.scale&&a.scale.fromArray(s.scale);return n.associations.has(a)||n.associations.set(a,{}),n.associations.get(a).nodes=t,a})),this.nodeCache[t]}loadScene(t){const e=this.extensions,i=this.json.scenes[t],n=this,s=new Ws;i.name&&(s.name=n.createUniqueName(i.name)),$d(s,i),i.extensions&&Jd(e,s,i);const r=i.nodes||[],a=[];for(let t=0,e=r.length;t<e;t++)a.push(n.getDependency("node",r[t]));return Promise.all(a).then((function(t){for(let e=0,i=t.length;e<i;e++)s.add(t[e]);return n.associations=(t=>{const e=new Map;for(const[t,i]of n.associations)(t instanceof Jn||t instanceof vi)&&e.set(t,i);return t.traverse((t=>{const i=n.associations.get(t);null!=i&&e.set(t,i)})),e})(s),s}))}_createAnimationTracks(t,e,i,n,s){const r=[],a=t.name?t.name:t.uuid,o=[];let l;switch(Wd[s.path]===Wd.weights?t.traverse((function(t){t.morphTargetInfluences&&o.push(t.name?t.name:t.uuid)})):o.push(a),Wd[s.path]){case Wd.weights:l=po;break;case Wd.rotation:l=mo;break;case Wd.position:case Wd.scale:l=fo;break;default:if(1===i.itemSize)l=po;else l=fo}const c=void 0!==n.interpolation?qd[n.interpolation]:ge,h=this._getArrayFromAccessor(i);for(let t=0,i=o.length;t<i;t++){const i=new l(o[t]+"."+Wd[s.path],e.array,h,c);"CUBICSPLINE"===n.interpolation&&this._createCubicSplineTrackInterpolant(i),r.push(i)}return r}_getArrayFromAccessor(t){let e=t.array;if(t.normalized){const t=ip(e.constructor),i=new Float32Array(e.length);for(let n=0,s=e.length;n<s;n++)i[n]=e[n]*t;e=i}return e}_createCubicSplineTrackInterpolant(t){t.createInterpolant=function(t){return new(this instanceof mo?Od:Fd)(this.times,this.values,this.getValueSize()/3,t)},t.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline=!0}}function rp(t,e,i){const n=e.attributes,s=[];function r(e,n){return i.getDependency("accessor",e).then((function(e){t.setAttribute(n,e)}))}for(const e in n){const i=Vd[e]||e.toLowerCase();i in t.attributes||s.push(r(n[e],i))}if(void 0!==e.indices&&!t.index){const n=i.getDependency("accessor",e.indices).then((function(e){t.setIndex(e)}));s.push(n)}return ci.workingColorSpace!==Se&&"COLOR_0"in n&&console.warn(`THREE.GLTFLoader: Converting vertex colors from "srgb-linear" to "${ci.workingColorSpace}" not supported.`),$d(t,e),function(t,e,i){const n=e.attributes,s=new Mi;if(void 0===n.POSITION)return;{const t=i.json.accessors[n.POSITION],e=t.min,r=t.max;if(void 0===e||void 0===r)return void console.warn("THREE.GLTFLoader: Missing min/max properties for accessor POSITION.");if(s.set(new Ci(e[0],e[1],e[2]),new Ci(r[0],r[1],r[2])),t.normalized){const e=ip(kd[t.componentType]);s.min.multiplyScalar(e),s.max.multiplyScalar(e)}}const r=e.targets;if(void 0!==r){const t=new Ci,e=new Ci;for(let n=0,s=r.length;n<s;n++){const s=r[n];if(void 0!==s.POSITION){const n=i.json.accessors[s.POSITION],r=n.min,a=n.max;if(void 0!==r&&void 0!==a){if(e.setX(Math.max(Math.abs(r[0]),Math.abs(a[0]))),e.setY(Math.max(Math.abs(r[1]),Math.abs(a[1]))),e.setZ(Math.max(Math.abs(r[2]),Math.abs(a[2]))),n.normalized){const t=ip(kd[n.componentType]);e.multiplyScalar(t)}t.max(e)}else console.warn("THREE.GLTFLoader: Missing min/max properties for accessor POSITION.")}}s.expandByVector(t)}t.boundingBox=s;const a=new qi;s.getCenter(a.center),a.radius=s.min.distanceTo(s.max)/2,t.boundingSphere=a}(t,e,i),Promise.all(s).then((function(){return void 0!==e.targets?function(t,e,i){let n=!1,s=!1,r=!1;for(let t=0,i=e.length;t<i;t++){const i=e[t];if(void 0!==i.POSITION&&(n=!0),void 0!==i.NORMAL&&(s=!0),void 0!==i.COLOR_0&&(r=!0),n&&s&&r)break}if(!n&&!s&&!r)return Promise.resolve(t);const a=[],o=[],l=[];for(let c=0,h=e.length;c<h;c++){const h=e[c];if(n){const e=void 0!==h.POSITION?i.getDependency("accessor",h.POSITION):t.attributes.position;a.push(e)}if(s){const e=void 0!==h.NORMAL?i.getDependency("accessor",h.NORMAL):t.attributes.normal;o.push(e)}if(r){const e=void 0!==h.COLOR_0?i.getDependency("accessor",h.COLOR_0):t.attributes.color;l.push(e)}}return Promise.all([Promise.all(a),Promise.all(o),Promise.all(l)]).then((function(e){const i=e[0],a=e[1],o=e[2];return n&&(t.morphAttributes.position=i),s&&(t.morphAttributes.normal=a),r&&(t.morphAttributes.color=o),t.morphTargetsRelative=!0,t}))}(t,e.targets,i):t}))}class ap{constructor(t=4){this.pool=t,this.queue=[],this.workers=[],this.workersResolve=[],this.workerStatus=0}_initWorker(t){if(!this.workers[t]){const e=this.workerCreator();e.addEventListener("message",this._onMessage.bind(this,t)),this.workers[t]=e}}_getIdleWorker(){for(let t=0;t<this.pool;t++)if(!(this.workerStatus&1<<t))return t;return-1}_onMessage(t,e){const i=this.workersResolve[t];if(i&&i(e),this.queue.length){const{resolve:e,msg:i,transfer:n}=this.queue.shift();this.workersResolve[t]=e,this.workers[t].postMessage(i,n)}else this.workerStatus^=1<<t}setWorkerCreator(t){this.workerCreator=t}setWorkerLimit(t){this.pool=t}postMessage(t,e){return new Promise((i=>{const n=this._getIdleWorker();-1!==n?(this._initWorker(n),this.workerStatus|=1<<n,this.workersResolve[n]=i,this.workers[n].postMessage(t,e)):this.queue.push({resolve:i,msg:t,transfer:e})}))}dispose(){this.workers.forEach((t=>t.terminate())),this.workersResolve.length=0,this.workers.length=0,this.queue.length=0,this.workerStatus=0}}const op=9,lp=15,cp=16,hp=22,up=37,dp=43,pp=76,Ap=83,mp=97,gp=100,fp=103,vp=109,bp=165,yp=166,xp=1000066e3;class _p{constructor(){this.vkFormat=0,this.typeSize=1,this.pixelWidth=0,this.pixelHeight=0,this.pixelDepth=0,this.layerCount=0,this.faceCount=1,this.supercompressionScheme=0,this.levels=[],this.dataFormatDescriptor=[{vendorId:0,descriptorType:0,descriptorBlockSize:0,versionNumber:2,colorModel:0,colorPrimaries:1,transferFunction:2,flags:0,texelBlockDimension:[0,0,0,0],bytesPlane:[0,0,0,0,0,0,0,0],samples:[]}],this.keyValue={},this.globalData=null}}class Ep{constructor(t,e,i,n){this._dataView=void 0,this._littleEndian=void 0,this._offset=void 0,this._dataView=new DataView(t.buffer,t.byteOffset+e,i),this._littleEndian=n,this._offset=0}_nextUint8(){const t=this._dataView.getUint8(this._offset);return this._offset+=1,t}_nextUint16(){const t=this._dataView.getUint16(this._offset,this._littleEndian);return this._offset+=2,t}_nextUint32(){const t=this._dataView.getUint32(this._offset,this._littleEndian);return this._offset+=4,t}_nextUint64(){const t=this._dataView.getUint32(this._offset,this._littleEndian)+2**32*this._dataView.getUint32(this._offset+4,this._littleEndian);return this._offset+=8,t}_nextInt32(){const t=this._dataView.getInt32(this._offset,this._littleEndian);return this._offset+=4,t}_nextUint8Array(t){const e=new Uint8Array(this._dataView.buffer,this._dataView.byteOffset+this._offset,t);return this._offset+=t,e}_skip(t){return this._offset+=t,this}_scan(t,e){void 0===e&&(e=0);const i=this._offset;let n=0;for(;this._dataView.getUint8(this._offset)!==e&&n<t;)n++,this._offset++;return n<t&&this._offset++,new Uint8Array(this._dataView.buffer,this._dataView.byteOffset+i,n)}}const Sp=[171,75,84,88,32,50,48,187,13,10,26,10];function Cp(t){return(new TextDecoder).decode(t)}let wp,Ip,Mp;const Tp={env:{emscripten_notify_memory_growth:function(t){Mp=new Uint8Array(Ip.exports.memory.buffer)}}};class Bp{init(){return wp||(wp="undefined"!=typeof fetch?fetch("data:application/wasm;base64,"+Rp).then((t=>t.arrayBuffer())).then((t=>WebAssembly.instantiate(t,Tp))).then(this._init):WebAssembly.instantiate(Buffer.from(Rp,"base64"),Tp).then(this._init),wp)}_init(t){Ip=t.instance,Tp.env.emscripten_notify_memory_growth(0)}decode(t,e=0){if(!Ip)throw new Error("ZSTDDecoder: Await .init() before decoding.");const i=t.byteLength,n=Ip.exports.malloc(i);Mp.set(t,n),e=e||Number(Ip.exports.ZSTD_findDecompressedSize(n,i));const s=Ip.exports.malloc(e),r=Ip.exports.ZSTD_decompress(s,e,n,i),a=Mp.slice(s,s+r);return Ip.exports.free(n),Ip.exports.free(s),a}}const Rp=" ",Dp=new WeakMap;let Lp,Pp=0;class Up extends Eo{constructor(t){super(t),this.transcoderPath="",this.transcoderBinary=null,this.transcoderPending=null,this.workerPool=new ap,this.workerSourceURL="",this.workerConfig=null,"undefined"!=typeof MSC_TRANSCODER&&console.warn('THREE.KTX2Loader: Please update to latest "basis_transcoder". "msc_basis_transcoder" is no longer supported in three.js r125+.')}setTranscoderPath(t){return this.transcoderPath=t,this}setWorkerLimit(t){return this.workerPool.setWorkerLimit(t),this}async detectSupportAsync(t){return this.workerConfig={astcSupported:await t.hasFeatureAsync("texture-compression-astc"),astcHDRSupported:!1,etc1Supported:await t.hasFeatureAsync("texture-compression-etc1"),etc2Supported:await t.hasFeatureAsync("texture-compression-etc2"),dxtSupported:await t.hasFeatureAsync("texture-compression-bc"),bptcSupported:await t.hasFeatureAsync("texture-compression-bptc"),pvrtcSupported:await t.hasFeatureAsync("texture-compression-pvrtc")},this}detectSupport(t){return!0===t.isWebGPURenderer?this.workerConfig={astcSupported:t.hasFeature("texture-compression-astc"),astcHDRSupported:!1,etc1Supported:t.hasFeature("texture-compression-etc1"),etc2Supported:t.hasFeature("texture-compression-etc2"),dxtSupported:t.hasFeature("texture-compression-bc"),bptcSupported:t.hasFeature("texture-compression-bptc"),pvrtcSupported:t.hasFeature("texture-compression-pvrtc")}:this.workerConfig={astcSupported:t.extensions.has("WEBGL_compressed_texture_astc"),astcHDRSupported:t.extensions.has("WEBGL_compressed_texture_astc")&&t.extensions.get("WEBGL_compressed_texture_astc").getSupportedProfiles().includes("hdr"),etc1Supported:t.extensions.has("WEBGL_compressed_texture_etc1"),etc2Supported:t.extensions.has("WEBGL_compressed_texture_etc"),dxtSupported:t.extensions.has("WEBGL_compressed_texture_s3tc"),bptcSupported:t.extensions.has("EXT_texture_compression_bptc"),pvrtcSupported:t.extensions.has("WEBGL_compressed_texture_pvrtc")||t.extensions.has("WEBKIT_WEBGL_compressed_texture_pvrtc")},this}init(){if(!this.transcoderPending){const t=new wo(this.manager);t.setPath(this.transcoderPath),t.setWithCredentials(this.withCredentials);const e=t.loadAsync("basis_transcoder.js"),i=new wo(this.manager);i.setPath(this.transcoderPath),i.setResponseType("arraybuffer"),i.setWithCredentials(this.withCredentials);const n=i.loadAsync("basis_transcoder.wasm");this.transcoderPending=Promise.all([e,n]).then((([t,e])=>{const i=Up.BasisWorker.toString(),n=["/* constants */","let _EngineFormat = "+JSON.stringify(Up.EngineFormat),"let _EngineType = "+JSON.stringify(Up.EngineType),"let _TranscoderFormat = "+JSON.stringify(Up.TranscoderFormat),"let _BasisFormat = "+JSON.stringify(Up.BasisFormat),"/* basis_transcoder.js */",t,"/* worker */",i.substring(i.indexOf("{")+1,i.lastIndexOf("}"))].join("\n");this.workerSourceURL=URL.createObjectURL(new Blob([n])),this.transcoderBinary=e,this.workerPool.setWorkerCreator((()=>{const t=new Worker(this.workerSourceURL),e=this.transcoderBinary.slice(0);return t.postMessage({type:"init",config:this.workerConfig,transcoderBinary:e},[e]),t}))})),Pp>0&&console.warn("THREE.KTX2Loader: Multiple active KTX2 loaders may cause performance issues. Use a single KTX2Loader instance, or call .dispose() on old instances."),Pp++}return this.transcoderPending}load(t,e,i,n){if(null===this.workerConfig)throw new Error("THREE.KTX2Loader: Missing initialization with `.detectSupport( renderer )`.");const s=new wo(this.manager);s.setResponseType("arraybuffer"),s.setWithCredentials(this.withCredentials),s.load(t,(t=>{this.parse(t,e,n)}),i,n)}parse(t,e,i){if(null===this.workerConfig)throw new Error("THREE.KTX2Loader: Missing initialization with `.detectSupport( renderer )`.");if(Dp.has(t)){return Dp.get(t).promise.then(e).catch(i)}this._createTexture(t).then((t=>e?e(t):null)).catch(i)}_createTextureFrom(t,e){const{type:i,error:n,data:{faces:s,width:r,height:a,format:o,type:l,dfdFlags:c}}=t;if("error"===i)return Promise.reject(n);let h;if(6===e.faceCount)h=new Zr(s,o,l);else{const t=s[0].mipmaps;h=e.layerCount>1?new $r(t,r,a,e.layerCount,o,l):new Jr(t,r,a,o,l)}return h.minFilter=1===s[0].mipmaps.length?dt:At,h.magFilter=dt,h.generateMipmaps=!1,h.needsUpdate=!0,h.colorSpace=Qp(e),h.premultiplyAlpha=!!(1&c),h}async _createTexture(t,e={}){const i=function(t){const e=new Uint8Array(t.buffer,t.byteOffset,Sp.length);if(e[0]!==Sp[0]||e[1]!==Sp[1]||e[2]!==Sp[2]||e[3]!==Sp[3]||e[4]!==Sp[4]||e[5]!==Sp[5]||e[6]!==Sp[6]||e[7]!==Sp[7]||e[8]!==Sp[8]||e[9]!==Sp[9]||e[10]!==Sp[10]||e[11]!==Sp[11])throw new Error("Missing KTX 2.0 identifier.");const i=new _p,n=17*Uint32Array.BYTES_PER_ELEMENT,s=new Ep(t,Sp.length,n,!0);i.vkFormat=s._nextUint32(),i.typeSize=s._nextUint32(),i.pixelWidth=s._nextUint32(),i.pixelHeight=s._nextUint32(),i.pixelDepth=s._nextUint32(),i.layerCount=s._nextUint32(),i.faceCount=s._nextUint32();const r=s._nextUint32();i.supercompressionScheme=s._nextUint32();const a=s._nextUint32(),o=s._nextUint32(),l=s._nextUint32(),c=s._nextUint32(),h=s._nextUint64(),u=s._nextUint64(),d=new Ep(t,Sp.length+n,3*r*8,!0);for(let e=0;e<r;e++)i.levels.push({levelData:new Uint8Array(t.buffer,t.byteOffset+d._nextUint64(),d._nextUint64()),uncompressedByteLength:d._nextUint64()});const p=new Ep(t,a,o,!0),A={vendorId:p._skip(4)._nextUint16(),descriptorType:p._nextUint16(),versionNumber:p._nextUint16(),descriptorBlockSize:p._nextUint16(),colorModel:p._nextUint8(),colorPrimaries:p._nextUint8(),transferFunction:p._nextUint8(),flags:p._nextUint8(),texelBlockDimension:[p._nextUint8(),p._nextUint8(),p._nextUint8(),p._nextUint8()],bytesPlane:[p._nextUint8(),p._nextUint8(),p._nextUint8(),p._nextUint8(),p._nextUint8(),p._nextUint8(),p._nextUint8(),p._nextUint8()],samples:[]},m=(A.descriptorBlockSize/4-6)/4;for(let t=0;t<m;t++){const e={bitOffset:p._nextUint16(),bitLength:p._nextUint8(),channelType:p._nextUint8(),samplePosition:[p._nextUint8(),p._nextUint8(),p._nextUint8(),p._nextUint8()],sampleLower:-1/0,sampleUpper:1/0};64&e.channelType?(e.sampleLower=p._nextInt32(),e.sampleUpper=p._nextInt32()):(e.sampleLower=p._nextUint32(),e.sampleUpper=p._nextUint32()),A.samples[t]=e}i.dataFormatDescriptor.length=0,i.dataFormatDescriptor.push(A);const g=new Ep(t,l,c,!0);for(;g._offset<c;){const t=g._nextUint32(),e=g._scan(t),n=Cp(e);if(i.keyValue[n]=g._nextUint8Array(t-e.byteLength-1),n.match(/^ktx/i)){const t=Cp(i.keyValue[n]);i.keyValue[n]=t.substring(0,t.lastIndexOf("\0"))}g._skip(t%4?4-t%4:0)}if(u<=0)return i;const f=new Ep(t,h,u,!0),v=f._nextUint16(),b=f._nextUint16(),y=f._nextUint32(),x=f._nextUint32(),_=f._nextUint32(),E=f._nextUint32(),S=[];for(let t=0;t<r;t++)S.push({imageFlags:f._nextUint32(),rgbSliceByteOffset:f._nextUint32(),rgbSliceByteLength:f._nextUint32(),alphaSliceByteOffset:f._nextUint32(),alphaSliceByteLength:f._nextUint32()});const C=h+f._offset,w=C+y,I=w+x,M=I+_,T=new Uint8Array(t.buffer,t.byteOffset+C,y),B=new Uint8Array(t.buffer,t.byteOffset+w,x),R=new Uint8Array(t.buffer,t.byteOffset+I,_),D=new Uint8Array(t.buffer,t.byteOffset+M,E);return i.globalData={endpointCount:v,selectorCount:b,imageDescs:S,endpointsData:T,selectorsData:B,tablesData:R,extendedData:D},i}(new Uint8Array(t)),n=i.vkFormat===xp&&167===i.dataFormatDescriptor[0].colorModel;if(!(0===i.vkFormat||n&&!this.workerConfig.astcHDRSupported))return async function(t){const{vkFormat:e}=t;if(void 0===Np[e])throw new Error("THREE.KTX2Loader: Unsupported vkFormat.");let i;2===t.supercompressionScheme&&(Lp||(Lp=new Promise((async t=>{const e=new Bp;await e.init(),t(e)}))),i=await Lp);const n=[];for(let s=0;s<t.levels.length;s++){const r=Math.max(1,t.pixelWidth>>s),a=Math.max(1,t.pixelHeight>>s),o=t.pixelDepth?Math.max(1,t.pixelDepth>>s):0,l=t.levels[s];let c,h;if(0===t.supercompressionScheme)c=l.levelData;else{if(2!==t.supercompressionScheme)throw new Error("THREE.KTX2Loader: Unsupported supercompressionScheme.");c=i.decode(l.levelData,l.uncompressedByteLength)}h=Op[e]===xt?new Float32Array(c.buffer,c.byteOffset,c.byteLength/Float32Array.BYTES_PER_ELEMENT):Op[e]===_t?new Uint16Array(c.buffer,c.byteOffset,c.byteLength/Uint16Array.BYTES_PER_ELEMENT):c,n.push({data:h,width:r,height:a,depth:o})}let s;if(Fp.has(Np[e]))s=0===t.pixelDepth?new cr(n[0].data,t.pixelWidth,t.pixelHeight):new Ei(n[0].data,t.pixelWidth,t.pixelHeight,t.pixelDepth);else{if(t.pixelDepth>0)throw new Error("THREE.KTX2Loader: Unsupported pixelDepth.");s=new Jr(n,t.pixelWidth,t.pixelHeight),s.minFilter=1===n.length?dt:At,s.magFilter=dt}return s.mipmaps=n,s.type=Op[e],s.format=Np[e],s.colorSpace=Qp(t),s.needsUpdate=!0,Promise.resolve(s)}(i);const s=e,r=this.init().then((()=>this.workerPool.postMessage({type:"transcode",buffer:t,taskConfig:s},[t]))).then((t=>this._createTextureFrom(t.data,i)));return Dp.set(t,{promise:r}),r}dispose(){return this.workerPool.dispose(),this.workerSourceURL&&URL.revokeObjectURL(this.workerSourceURL),Pp--,this}}Up.BasisFormat={ETC1S:0,UASTC:1,UASTC_HDR:2},Up.TranscoderFormat={ETC1:0,ETC2:1,BC1:2,BC3:3,BC4:4,BC5:5,BC7_M6_OPAQUE_ONLY:6,BC7_M5:7,PVRTC1_4_RGB:8,PVRTC1_4_RGBA:9,ASTC_4x4:10,ATC_RGB:11,ATC_RGBA_INTERPOLATED_ALPHA:12,RGBA32:13,RGB565:14,BGR565:15,RGBA4444:16,BC6H:22,RGB_HALF:24,RGBA_HALF:25},Up.EngineFormat={RGBAFormat:It,RGBA_ASTC_4x4_Format:qt,RGB_BPTC_UNSIGNED_Format:le,RGBA_BPTC_Format:ae,RGBA_ETC2_EAC_Format:Wt,RGBA_PVRTC_4BPPV1_Format:Gt,RGBA_S3TC_DXT5_Format:Ot,RGB_ETC1_Format:zt,RGB_ETC2_Format:Vt,RGB_PVRTC_4BPPV1_Format:Qt,RGBA_S3TC_DXT1_Format:Ft},Up.EngineType={UnsignedByteType:mt,HalfFloatType:_t,FloatType:xt},Up.BasisWorker=function(){let t,e,i;const n=_EngineFormat,s=_EngineType,r=_TranscoderFormat,a=_BasisFormat;self.addEventListener("message",(function(n){const r=n.data;switch(r.type){case"init":t=r.config,o=r.transcoderBinary,e=new Promise((t=>{i={wasmBinary:o,onRuntimeInitialized:t},BASIS(i)})).then((()=>{i.initializeBasis(),void 0===i.KTX2File&&console.warn("THREE.KTX2Loader: Please update Basis Universal transcoder.")}));break;case"transcode":e.then((()=>{try{const{faces:e,buffers:n,width:o,height:u,hasAlpha:d,format:p,type:A,dfdFlags:m}=function(e){const n=new i.KTX2File(new Uint8Array(e));function r(){n.close(),n.delete()}if(!n.isValid())throw r(),new Error("THREE.KTX2Loader:\tInvalid or unsupported .ktx2 file");let o;if(n.isUASTC())o=a.UASTC;else if(n.isETC1S())o=a.ETC1S;else{if(!n.isHDR())throw new Error("THREE.KTX2Loader: Unknown Basis encoding");o=a.UASTC_HDR}const u=n.getWidth(),d=n.getHeight(),p=n.getLayers()||1,A=n.getLevels(),m=n.getFaces(),g=n.getHasAlpha(),f=n.getDFDFlags(),{transcoderFormat:v,engineFormat:b,engineType:y}=function(e,i,n,s){const r=l[e];for(let a=0;a<r.length;a++){const o=r[a];if(o.if&&!t[o.if])continue;if(!o.basisFormat.includes(e))continue;if(s&&o.transcoderFormat.length<2)continue;if(o.needsPowerOfTwo&&(!c(i)||!c(n)))continue;return{transcoderFormat:o.transcoderFormat[s?1:0],engineFormat:o.engineFormat[s?1:0],engineType:o.engineType[0]}}throw new Error("THREE.KTX2Loader: Failed to identify transcoding target.")}(o,u,d,g);if(!u||!d||!A)throw r(),new Error("THREE.KTX2Loader:\tInvalid texture");if(!n.startTranscoding())throw r(),new Error("THREE.KTX2Loader: .startTranscoding failed");const x=[],_=[];for(let t=0;t<m;t++){const e=[];for(let i=0;i<A;i++){const a=[];let o,l;for(let e=0;e<p;e++){const c=n.getImageLevelInfo(i,e,t);0!==t||0!==i||0!==e||c.origWidth%4==0&&c.origHeight%4==0||console.warn("THREE.KTX2Loader: ETC1S and UASTC textures should use multiple-of-four dimensions."),A>1?(o=c.origWidth,l=c.origHeight):(o=c.width,l=c.height);let h=new Uint8Array(n.getImageTranscodedSizeInBytes(i,e,0,v));const u=n.transcodeImage(h,i,e,t,v,0,-1,-1);if(y===s.HalfFloatType&&(h=new Uint16Array(h.buffer,h.byteOffset,h.byteLength/Uint16Array.BYTES_PER_ELEMENT)),!u)throw r(),new Error("THREE.KTX2Loader: .transcodeImage failed.");a.push(h)}const c=h(a);e.push({data:c,width:o,height:l}),_.push(c.buffer)}x.push({mipmaps:e,width:u,height:d,format:b,type:y})}return r(),{faces:x,buffers:_,width:u,height:d,hasAlpha:g,dfdFlags:f,format:b,type:y}}(r.buffer);self.postMessage({type:"transcode",id:r.id,data:{faces:e,width:o,height:u,hasAlpha:d,format:p,type:A,dfdFlags:m}},n)}catch(t){console.error(t),self.postMessage({type:"error",id:r.id,error:t.message})}}))}var o}));const o=[{if:"astcSupported",basisFormat:[a.UASTC],transcoderFormat:[r.ASTC_4x4,r.ASTC_4x4],engineFormat:[n.RGBA_ASTC_4x4_Format,n.RGBA_ASTC_4x4_Format],engineType:[s.UnsignedByteType],priorityETC1S:1/0,priorityUASTC:1,needsPowerOfTwo:!1},{if:"bptcSupported",basisFormat:[a.ETC1S,a.UASTC],transcoderFormat:[r.BC7_M5,r.BC7_M5],engineFormat:[n.RGBA_BPTC_Format,n.RGBA_BPTC_Format],engineType:[s.UnsignedByteType],priorityETC1S:3,priorityUASTC:2,needsPowerOfTwo:!1},{if:"dxtSupported",basisFormat:[a.ETC1S,a.UASTC],transcoderFormat:[r.BC1,r.BC3],engineFormat:[n.RGBA_S3TC_DXT1_Format,n.RGBA_S3TC_DXT5_Format],engineType:[s.UnsignedByteType],priorityETC1S:4,priorityUASTC:5,needsPowerOfTwo:!1},{if:"etc2Supported",basisFormat:[a.ETC1S,a.UASTC],transcoderFormat:[r.ETC1,r.ETC2],engineFormat:[n.RGB_ETC2_Format,n.RGBA_ETC2_EAC_Format],engineType:[s.UnsignedByteType],priorityETC1S:1,priorityUASTC:3,needsPowerOfTwo:!1},{if:"etc1Supported",basisFormat:[a.ETC1S,a.UASTC],transcoderFormat:[r.ETC1],engineFormat:[n.RGB_ETC1_Format],engineType:[s.UnsignedByteType],priorityETC1S:2,priorityUASTC:4,needsPowerOfTwo:!1},{if:"pvrtcSupported",basisFormat:[a.ETC1S,a.UASTC],transcoderFormat:[r.PVRTC1_4_RGB,r.PVRTC1_4_RGBA],engineFormat:[n.RGB_PVRTC_4BPPV1_Format,n.RGBA_PVRTC_4BPPV1_Format],engineType:[s.UnsignedByteType],priorityETC1S:5,priorityUASTC:6,needsPowerOfTwo:!0},{if:"bptcSupported",basisFormat:[a.UASTC_HDR],transcoderFormat:[r.BC6H],engineFormat:[n.RGB_BPTC_UNSIGNED_Format],engineType:[s.HalfFloatType],priorityHDR:1,needsPowerOfTwo:!1},{basisFormat:[a.ETC1S,a.UASTC],transcoderFormat:[r.RGBA32,r.RGBA32],engineFormat:[n.RGBAFormat,n.RGBAFormat],engineType:[s.UnsignedByteType,s.UnsignedByteType],priorityETC1S:100,priorityUASTC:100,needsPowerOfTwo:!1},{basisFormat:[a.UASTC_HDR],transcoderFormat:[r.RGBA_HALF],engineFormat:[n.RGBAFormat],engineType:[s.HalfFloatType],priorityHDR:100,needsPowerOfTwo:!1}],l={[a.ETC1S]:o.filter((t=>t.basisFormat.includes(a.ETC1S))).sort(((t,e)=>t.priorityUASTC-e.priorityUASTC)),[a.UASTC]:o.filter((t=>t.basisFormat.includes(a.UASTC))).sort(((t,e)=>t.priorityUASTC-e.priorityUASTC)),[a.UASTC_HDR]:o.filter((t=>t.basisFormat.includes(a.UASTC_HDR))).sort(((t,e)=>t.priorityHDR-e.priorityHDR))};function c(t){return t<=2||!(t&t-1)&&0!==t}function h(t){if(1===t.length)return t[0];let e=0;for(let i=0;i<t.length;i++){e+=t[i].byteLength}const i=new Uint8Array(e);let n=0;for(let e=0;e<t.length;e++){const s=t[e];i.set(s,n),n+=s.byteLength}return i}};const Fp=new Set([It,Dt,Bt]),Np={[vp]:It,[mp]:It,[up]:It,[dp]:It,[fp]:Dt,[Ap]:Dt,[cp]:Dt,[hp]:Dt,[gp]:Bt,[pp]:Bt,[lp]:Bt,[op]:Bt,[xp]:qt,[yp]:Kt,[bp]:Kt},Op={[vp]:xt,[mp]:_t,[up]:mt,[dp]:mt,[fp]:xt,[Ap]:_t,[cp]:mt,[hp]:mt,[gp]:xt,[pp]:_t,[lp]:mt,[op]:mt,[xp]:_t,[yp]:mt,[bp]:mt};function Qp(t){const e=t.dataFormatDescriptor[0];return 1===e.colorPrimaries?2===e.transferFunction?Ee:Se:10===e.colorPrimaries?2===e.transferFunction?"display-p3":"display-p3-linear":(0===e.colorPrimaries||console.warn(`THREE.KTX2Loader: Unsupported color primaries, "${e.colorPrimaries}"`),_e)}
/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */var kp,Gp;const Hp=Symbol("retainerCount"),zp=Symbol("recentlyUsed"),Vp=Symbol("evict"),Wp=Symbol("evictionThreshold"),qp=Symbol("cache");class jp{constructor(t,e=5){this[kp]=new Map,this[Gp]=[],this[qp]=t,this[Wp]=e}set evictionThreshold(t){this[Wp]=t,this[Vp]()}get evictionThreshold(){return this[Wp]}get cache(){return this[qp]}retainerCount(t){return this[Hp].get(t)||0}reset(){this[Hp].clear(),this[zp]=[]}retain(t){this[Hp].has(t)||this[Hp].set(t,0),this[Hp].set(t,this[Hp].get(t)+1);const e=this[zp].indexOf(t);-1!==e&&this[zp].splice(e,1),this[zp].unshift(t),this[Vp]()}release(t){this[Hp].has(t)&&this[Hp].set(t,Math.max(this[Hp].get(t)-1,0)),this[Vp]()}[(kp=Hp,Gp=zp,Vp)](){if(!(this[zp].length<this[Wp]))for(let t=this[zp].length-1;t>=this[Wp];--t){const e=this[zp][t];0===this[Hp].get(e)&&(this[qp].delete(e),this[zp].splice(t,1))}}}
/* @license
 * Copyright 2021 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */const Xp=t=>{const e=new Map;for(const i of t.mappings)for(const t of i.variants)e.set(t,{material:null,gltfMaterialIndex:i.material});return e};class Yp{constructor(t){this.parser=t,this.name="KHR_materials_variants"}afterRoot(t){const e=this.parser,i=e.json;if(void 0===i.extensions||void 0===i.extensions[this.name])return null;const n=(t=>{const e=[],i=new Set;for(const n of t){let t=n,s=0;for(;i.has(t);)t=n+"."+ ++s;i.add(t),e.push(t)}return e})((i.extensions[this.name].variants||[]).map((t=>t.name)));for(const n of t.scenes)n.traverse((t=>{const n=t;if(!n.material)return;const s=e.associations.get(n);if(null==s||null==s.meshes||null==s.primitives)return;const r=i.meshes[s.meshes].primitives[s.primitives].extensions;r&&r[this.name]&&(n.userData.variantMaterials=Xp(r[this.name]))}));return t.userData.variants=n,Promise.resolve()}}
/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */var Kp,Jp;vi.DEFAULT_ANISOTROPY=4;const $p=new Map,Zp=new Map;let tA;const eA=new class extends Eo{constructor(t){super(t),this.decoderPath="",this.decoderConfig={},this.decoderBinary=null,this.decoderPending=null,this.workerLimit=4,this.workerPool=[],this.workerNextTaskID=1,this.workerSourceURL="",this.defaultAttributeIDs={position:"POSITION",normal:"NORMAL",color:"COLOR",uv:"TEX_COORD"},this.defaultAttributeTypes={position:"Float32Array",normal:"Float32Array",color:"Float32Array",uv:"Float32Array"}}setDecoderPath(t){return this.decoderPath=t,this}setDecoderConfig(t){return this.decoderConfig=t,this}setWorkerLimit(t){return this.workerLimit=t,this}load(t,e,i,n){const s=new wo(this.manager);s.setPath(this.path),s.setResponseType("arraybuffer"),s.setRequestHeader(this.requestHeader),s.setWithCredentials(this.withCredentials),s.load(t,(t=>{this.parse(t,e,n)}),i,n)}parse(t,e,i=()=>{}){this.decodeDracoFile(t,e,null,null,Ee,i).catch(i)}decodeDracoFile(t,e,i,n,s=Se,r=()=>{}){const a={attributeIDs:i||this.defaultAttributeIDs,attributeTypes:n||this.defaultAttributeTypes,useUniqueIDs:!!i,vertexColorSpace:s};return this.decodeGeometry(t,a).then(e).catch(r)}decodeGeometry(t,e){const i=JSON.stringify(e);if(rd.has(t)){const e=rd.get(t);if(e.key===i)return e.promise;if(0===t.byteLength)throw new Error("THREE.DRACOLoader: Unable to re-decode a buffer with different settings. Buffer has already been transferred.")}let n;const s=this.workerNextTaskID++,r=t.byteLength,a=this._getWorker(s,r).then((i=>(n=i,new Promise(((i,r)=>{n._callbacks[s]={resolve:i,reject:r},n.postMessage({type:"decode",id:s,taskConfig:e,buffer:t},[t])}))))).then((t=>this._createGeometry(t.geometry)));return a.catch((()=>!0)).then((()=>{n&&s&&this._releaseTask(n,s)})),rd.set(t,{key:i,promise:a}),a}_createGeometry(t){const e=new gs;t.index&&e.setIndex(new rs(t.index.array,1));for(let i=0;i<t.attributes.length;i++){const n=t.attributes[i],s=n.name,r=n.array,a=n.itemSize,o=new rs(r,a);"color"===s&&(this._assignVertexColorSpace(o,n.vertexColorSpace),o.normalized=r instanceof Float32Array==!1),e.setAttribute(s,o)}return e}_assignVertexColorSpace(t,e){if(e!==Ee)return;const i=new Xn;for(let e=0,n=t.count;e<n;e++)i.fromBufferAttribute(t,e),ci.toWorkingColorSpace(i,Ee),t.setXYZ(e,i.r,i.g,i.b)}_loadLibrary(t,e){const i=new wo(this.manager);return i.setPath(this.decoderPath),i.setResponseType(e),i.setWithCredentials(this.withCredentials),new Promise(((e,n)=>{i.load(t,e,void 0,n)}))}preload(){return this._initDecoder(),this}_initDecoder(){if(this.decoderPending)return this.decoderPending;const t="object"!=typeof WebAssembly||"js"===this.decoderConfig.type,e=[];return t?e.push(this._loadLibrary("draco_decoder.js","text")):(e.push(this._loadLibrary("draco_wasm_wrapper.js","text")),e.push(this._loadLibrary("draco_decoder.wasm","arraybuffer"))),this.decoderPending=Promise.all(e).then((e=>{const i=e[0];t||(this.decoderConfig.wasmBinary=e[1]);const n=ad.toString(),s=["/* draco decoder */",i,"","/* worker */",n.substring(n.indexOf("{")+1,n.lastIndexOf("}"))].join("\n");this.workerSourceURL=URL.createObjectURL(new Blob([s]))})),this.decoderPending}_getWorker(t,e){return this._initDecoder().then((()=>{if(this.workerPool.length<this.workerLimit){const t=new Worker(this.workerSourceURL);t._callbacks={},t._taskCosts={},t._taskLoad=0,t.postMessage({type:"init",decoderConfig:this.decoderConfig}),t.onmessage=function(e){const i=e.data;switch(i.type){case"decode":t._callbacks[i.id].resolve(i);break;case"error":t._callbacks[i.id].reject(i);break;default:console.error('THREE.DRACOLoader: Unexpected message, "'+i.type+'"')}},this.workerPool.push(t)}else this.workerPool.sort((function(t,e){return t._taskLoad>e._taskLoad?-1:1}));const i=this.workerPool[this.workerPool.length-1];return i._taskCosts[t]=e,i._taskLoad+=e,i}))}_releaseTask(t,e){t._taskLoad-=t._taskCosts[e],delete t._callbacks[e],delete t._taskCosts[e]}debug(){console.log("Task load: ",this.workerPool.map((t=>t._taskLoad)))}dispose(){for(let t=0;t<this.workerPool.length;++t)this.workerPool[t].terminate();return this.workerPool.length=0,""!==this.workerSourceURL&&URL.revokeObjectURL(this.workerSourceURL),this}};let iA;const nA=new Up;let sA,rA;const aA=Symbol("loader"),oA=Symbol("evictionPolicy"),lA=Symbol("GLTFInstance");class cA extends ke{static setDRACODecoderLocation(t){tA=t,eA.setDecoderPath(t)}static getDRACODecoderLocation(){return tA}static setKTX2TranscoderLocation(t){iA=t,nA.setTranscoderPath(t)}static getKTX2TranscoderLocation(){return iA}static setMeshoptDecoderLocation(t){var e;sA!==t&&(sA=t,rA=(e=t,new Promise(((t,i)=>{const n=document.createElement("script");document.body.appendChild(n),n.onload=t,n.onerror=i,n.async=!0,n.src=e}))).then((()=>sd.ready)).then((()=>sd)))}static getMeshoptDecoderLocation(){return sA}static initializeKTX2Loader(t){nA.detectSupport(t)}static get cache(){return $p}static clearCache(){$p.forEach(((t,e)=>{this.delete(e)})),this[oA].reset()}static has(t){return $p.has(t)}static async delete(t){if(!this.has(t))return;const e=$p.get(t);Zp.delete(t),$p.delete(t);(await e).dispose()}static hasFinishedLoading(t){return!!Zp.get(t)}constructor(t){super(),this[Jp]=(new ld).register((t=>new Yp(t))),this[lA]=t,this[aA].setDRACOLoader(eA),this[aA].setKTX2Loader(nA)}get[(Kp=oA,Jp=aA,oA)](){return this.constructor[oA]}async preload(t,e,i=()=>{}){if(this[aA].setWithCredentials(e.withCredentials),this.dispatchEvent({type:"preload",element:e,src:t}),!$p.has(t)){null!=rA&&this[aA].setMeshoptDecoder(await rA);const e=((t,e,i=()=>{})=>{const n=t=>{const e=t.loaded/t.total;i(Math.max(0,Math.min(1,isFinite(e)?e:1)))};return new Promise(((i,s)=>{e.load(t,i,n,s)}))})(t,this[aA],(t=>{i(.8*t)})),n=this[lA],s=e.then((t=>n.prepare(t))).then((t=>(i(.9),new n(t)))).catch((t=>(console.error(t),new n)));$p.set(t,s)}await $p.get(t),Zp.set(t,!0),i&&i(1)}async load(t,e,i=()=>{}){await this.preload(t,e,i);const n=await $p.get(t),s=await n.clone();return this[oA].retain(t),s.dispose=()=>{this[oA].release(t)},s}}cA[Kp]=new jp(cA);class hA extends Tn{constructor(t=document.createElement("div")){super(),this.isCSS2DObject=!0,this.element=t,this.element.style.position="absolute",this.element.style.userSelect="none",this.element.setAttribute("draggable",!1),this.center=new $e(.5,.5),this.addEventListener("removed",(function(){this.traverse((function(t){t.element instanceof t.element.ownerDocument.defaultView.Element&&null!==t.element.parentNode&&t.element.remove()}))}))}copy(t,e){return super.copy(t,e),this.element=t.element.cloneNode(!0),this.center=t.center,this}}const uA=new Ci,dA=new en,pA=new en,AA=new Ci,mA=new Ci;class gA{constructor(t={}){const e=this;let i,n,s,r;const a={objects:new WeakMap},o=void 0!==t.element?t.element:document.createElement("div");function l(t){t.isCSS2DObject&&(t.element.style.display="none");for(let e=0,i=t.children.length;e<i;e++)l(t.children[e])}function c(t,i,n){if(!1!==t.visible){if(t.isCSS2DObject){uA.setFromMatrixPosition(t.matrixWorld),uA.applyMatrix4(pA);const l=uA.z>=-1&&uA.z<=1&&!0===t.layers.test(n.layers),c=t.element;c.style.display=!0===l?"":"none",!0===l&&(t.onBeforeRender(e,i,n),c.style.transform="translate("+-100*t.center.x+"%,"+-100*t.center.y+"%)translate("+(uA.x*s+s)+"px,"+(-uA.y*r+r)+"px)",c.parentNode!==o&&o.appendChild(c),t.onAfterRender(e,i,n));const u={distanceToCameraSquared:h(n,t)};a.objects.set(t,u)}for(let e=0,s=t.children.length;e<s;e++)c(t.children[e],i,n)}else l(t)}function h(t,e){return AA.setFromMatrixPosition(t.matrixWorld),mA.setFromMatrixPosition(e.matrixWorld),AA.distanceToSquared(mA)}o.style.overflow="hidden",this.domElement=o,this.getSize=function(){return{width:i,height:n}},this.render=function(t,e){!0===t.matrixWorldAutoUpdate&&t.updateMatrixWorld(),null===e.parent&&!0===e.matrixWorldAutoUpdate&&e.updateMatrixWorld(),dA.copy(e.matrixWorldInverse),pA.multiplyMatrices(e.projectionMatrix,dA),c(t,t,e),function(t){const e=function(t){const e=[];return t.traverseVisible((function(t){t.isCSS2DObject&&e.push(t)})),e}(t).sort((function(t,e){if(t.renderOrder!==e.renderOrder)return e.renderOrder-t.renderOrder;return a.objects.get(t).distanceToCameraSquared-a.objects.get(e).distanceToCameraSquared})),i=e.length;for(let t=0,n=e.length;t<n;t++)e[t].element.style.zIndex=i-t}(t)},this.setSize=function(t,e){i=t,n=e,s=i/2,r=n/2,o.style.width=t+"px",o.style.height=e+"px"}}}function fA(t,e,i){let n=i;const s=new Ci;return t.updateWorldMatrix(!0,!0),t.traverseVisible((t=>{const{geometry:i}=t;if(void 0!==i){const{position:r}=i.attributes;if(void 0!==r)for(let i=0,a=r.count;i<a;i++)t.isMesh?t.getVertexPosition(i,s):s.fromBufferAttribute(r,i),t.isSkinnedMesh||s.applyMatrix4(t.matrixWorld),n=e(n,s)}})),n}const vA={POSITION:["byte","byte normalized","unsigned byte","unsigned byte normalized","short","short normalized","unsigned short","unsigned short normalized"],NORMAL:["byte normalized","short normalized"],TANGENT:["byte normalized","short normalized"],TEXCOORD:["byte","byte normalized","unsigned byte","short","short normalized","unsigned short"]};class bA{constructor(){this.textureUtils=null,this.pluginCallbacks=[],this.register((function(t){return new ZA(t)})),this.register((function(t){return new tm(t)})),this.register((function(t){return new sm(t)})),this.register((function(t){return new rm(t)})),this.register((function(t){return new am(t)})),this.register((function(t){return new om(t)})),this.register((function(t){return new em(t)})),this.register((function(t){return new im(t)})),this.register((function(t){return new nm(t)})),this.register((function(t){return new lm(t)})),this.register((function(t){return new cm(t)})),this.register((function(t){return new hm(t)})),this.register((function(t){return new um(t)})),this.register((function(t){return new dm(t)}))}register(t){return-1===this.pluginCallbacks.indexOf(t)&&this.pluginCallbacks.push(t),this}unregister(t){return-1!==this.pluginCallbacks.indexOf(t)&&this.pluginCallbacks.splice(this.pluginCallbacks.indexOf(t),1),this}setTextureUtils(t){return this.textureUtils=t,this}parse(t,e,i,n){const s=new $A,r=[];for(let t=0,e=this.pluginCallbacks.length;t<e;t++)r.push(this.pluginCallbacks[t](s));s.setPlugins(r),s.setTextureUtils(this.textureUtils),s.writeAsync(t,e,n).catch(i)}parseAsync(t,e){const i=this;return new Promise((function(n,s){i.parse(t,n,s,e)}))}}const yA=0,xA=1,_A=2,EA=3,SA=4,CA=5120,wA=5121,IA=5122,MA=5123,TA=5124,BA=5125,RA=5126,DA=34962,LA=34963,PA=9728,UA=9729,FA=9984,NA=9985,OA=9986,QA=9987,kA=33071,GA=33648,HA=10497,zA="KHR_mesh_quantization",VA={};VA[1003]=PA,VA[1004]=FA,VA[1005]=OA,VA[1006]=UA,VA[1007]=NA,VA[1008]=QA,VA[1001]=kA,VA[1e3]=HA,VA[1002]=GA;const WA={scale:"scale",position:"translation",quaternion:"rotation",morphTargetInfluences:"weights"},qA=new Xn;function jA(t,e){return t.length===e.length&&t.every((function(t,i){return t===e[i]}))}function XA(t){return 4*Math.ceil(t/4)}function YA(t,e=0){const i=XA(t.byteLength);if(i!==t.byteLength){const n=new Uint8Array(i);if(n.set(new Uint8Array(t)),0!==e)for(let s=t.byteLength;s<i;s++)n[s]=e;return n.buffer}return t}function KA(){return"undefined"==typeof document&&"undefined"!=typeof OffscreenCanvas?new OffscreenCanvas(1,1):document.createElement("canvas")}function JA(t,e){if(void 0!==t.toBlob)return new Promise((i=>t.toBlob(i,e)));let i;return"image/jpeg"===e?i=.92:"image/webp"===e&&(i=.8),t.convertToBlob({type:e,quality:i})}class $A{constructor(){this.plugins=[],this.options={},this.pending=[],this.buffers=[],this.byteOffset=0,this.buffers=[],this.nodeMap=new Map,this.skins=[],this.extensionsUsed={},this.extensionsRequired={},this.uids=new Map,this.uid=0,this.json={asset:{version:"2.0",generator:"THREE.GLTFExporter r"+S}},this.cache={meshes:new Map,attributes:new Map,attributesNormalized:new Map,materials:new Map,textures:new Map,images:new Map},this.textureUtils=null}setPlugins(t){this.plugins=t}setTextureUtils(t){this.textureUtils=t}async writeAsync(t,e,i={}){this.options=Object.assign({binary:!1,trs:!1,onlyVisible:!0,maxTextureSize:1/0,animations:[],includeCustomExtensions:!1},i),this.options.animations.length>0&&(this.options.trs=!0),await this.processInputAsync(t),await Promise.all(this.pending);const n=this,s=n.buffers,r=n.json;i=n.options;const a=n.extensionsUsed,o=n.extensionsRequired,l=new Blob(s,{type:"application/octet-stream"}),c=Object.keys(a),h=Object.keys(o);if(c.length>0&&(r.extensionsUsed=c),h.length>0&&(r.extensionsRequired=h),r.buffers&&r.buffers.length>0&&(r.buffers[0].byteLength=l.size),!0===i.binary){const t=new FileReader;t.readAsArrayBuffer(l),t.onloadend=function(){const i=YA(t.result),n=new DataView(new ArrayBuffer(8));n.setUint32(0,i.byteLength,!0),n.setUint32(4,5130562,!0);const s=YA((a=JSON.stringify(r),(new TextEncoder).encode(a).buffer),32);var a;const o=new DataView(new ArrayBuffer(8));o.setUint32(0,s.byteLength,!0),o.setUint32(4,1313821514,!0);const l=new ArrayBuffer(12),c=new DataView(l);c.setUint32(0,1179937895,!0),c.setUint32(4,2,!0);const h=12+o.byteLength+s.byteLength+n.byteLength+i.byteLength;c.setUint32(8,h,!0);const u=new Blob([l,o,s,n,i],{type:"application/octet-stream"}),d=new FileReader;d.readAsArrayBuffer(u),d.onloadend=function(){e(d.result)}}}else if(r.buffers&&r.buffers.length>0){const t=new FileReader;t.readAsDataURL(l),t.onloadend=function(){const i=t.result;r.buffers[0].uri=i,e(r)}}else e(r)}serializeUserData(t,e){if(0===Object.keys(t.userData).length)return;const i=this.options,n=this.extensionsUsed;try{const s=JSON.parse(JSON.stringify(t.userData));if(i.includeCustomExtensions&&s.gltfExtensions){void 0===e.extensions&&(e.extensions={});for(const t in s.gltfExtensions)e.extensions[t]=s.gltfExtensions[t],n[t]=!0;delete s.gltfExtensions}Object.keys(s).length>0&&(e.extras=s)}catch(e){console.warn("THREE.GLTFExporter: userData of '"+t.name+"' won't be serialized because of JSON.stringify error - "+e.message)}}getUID(t,e=!1){if(!1===this.uids.has(t)){const e=new Map;e.set(!0,this.uid++),e.set(!1,this.uid++),this.uids.set(t,e)}return this.uids.get(t).get(e)}isNormalizedNormalAttribute(t){if(this.cache.attributesNormalized.has(t))return!1;const e=new Ci;for(let i=0,n=t.count;i<n;i++)if(Math.abs(e.fromBufferAttribute(t,i).length()-1)>5e-4)return!1;return!0}createNormalizedNormalAttribute(t){const e=this.cache;if(e.attributesNormalized.has(t))return e.attributesNormalized.get(t);const i=t.clone(),n=new Ci;for(let t=0,e=i.count;t<e;t++)n.fromBufferAttribute(i,t),0===n.x&&0===n.y&&0===n.z?n.setX(1):n.normalize(),i.setXYZ(t,n.x,n.y,n.z);return e.attributesNormalized.set(t,i),i}applyTextureTransform(t,e){let i=!1;const n={};0===e.offset.x&&0===e.offset.y||(n.offset=e.offset.toArray(),i=!0),0!==e.rotation&&(n.rotation=e.rotation,i=!0),1===e.repeat.x&&1===e.repeat.y||(n.scale=e.repeat.toArray(),i=!0),i&&(t.extensions=t.extensions||{},t.extensions.KHR_texture_transform=n,this.extensionsUsed.KHR_texture_transform=!0)}async buildMetalRoughTextureAsync(t,e){if(t===e)return t;function i(t){return t.colorSpace===Ee?function(t){return t<.04045?.0773993808*t:Math.pow(.9478672986*t+.0521327014,2.4)}:function(t){return t}}t instanceof Jr&&(t=await this.decompressTextureAsync(t)),e instanceof Jr&&(e=await this.decompressTextureAsync(e));const n=t?t.image:null,s=e?e.image:null,r=Math.max(n?n.width:0,s?s.width:0),a=Math.max(n?n.height:0,s?s.height:0),o=KA();o.width=r,o.height=a;const l=o.getContext("2d",{willReadFrequently:!0});l.fillStyle="#00ffff",l.fillRect(0,0,r,a);const c=l.getImageData(0,0,r,a);if(n){l.drawImage(n,0,0,r,a);const e=i(t),s=l.getImageData(0,0,r,a).data;for(let t=2;t<s.length;t+=4)c.data[t]=256*e(s[t]/256)}if(s){l.drawImage(s,0,0,r,a);const t=i(e),n=l.getImageData(0,0,r,a).data;for(let e=1;e<n.length;e+=4)c.data[e]=256*t(n[e]/256)}l.putImageData(c,0,0);const h=(t||e).clone();return h.source=new mi(o),h.colorSpace=_e,h.channel=(t||e).channel,t&&e&&t.channel!==e.channel&&console.warn("THREE.GLTFExporter: UV channels for metalnessMap and roughnessMap textures must match."),console.warn("THREE.GLTFExporter: Merged metalnessMap and roughnessMap textures."),h}async decompressTextureAsync(t,e=1/0){if(null===this.textureUtils)throw new Error("THREE.GLTFExporter: setTextureUtils() must be called to process compressed textures.");return await this.textureUtils.decompress(t,e)}processBuffer(t){const e=this.json,i=this.buffers;return e.buffers||(e.buffers=[{byteLength:0}]),i.push(t),0}processBufferView(t,e,i,n,s){const r=this.json;let a;switch(r.bufferViews||(r.bufferViews=[]),e){case CA:case wA:a=1;break;case IA:case MA:a=2;break;default:a=4}let o=t.itemSize*a;s===DA&&(o=4*Math.ceil(o/4));const l=XA(n*o),c=new DataView(new ArrayBuffer(l));let h=0;for(let s=i;s<i+n;s++){for(let i=0;i<t.itemSize;i++){let n;t.itemSize>4?n=t.array[s*t.itemSize+i]:(0===i?n=t.getX(s):1===i?n=t.getY(s):2===i?n=t.getZ(s):3===i&&(n=t.getW(s)),!0===t.normalized&&(n=Je.normalize(n,t.array))),e===RA?c.setFloat32(h,n,!0):e===TA?c.setInt32(h,n,!0):e===BA?c.setUint32(h,n,!0):e===IA?c.setInt16(h,n,!0):e===MA?c.setUint16(h,n,!0):e===CA?c.setInt8(h,n):e===wA&&c.setUint8(h,n),h+=a}h%o!=0&&(h+=o-h%o)}const u={buffer:this.processBuffer(c.buffer),byteOffset:this.byteOffset,byteLength:l};void 0!==s&&(u.target=s),s===DA&&(u.byteStride=o),this.byteOffset+=l,r.bufferViews.push(u);return{id:r.bufferViews.length-1,byteLength:0}}processBufferViewImage(t){const e=this,i=e.json;return i.bufferViews||(i.bufferViews=[]),new Promise((function(n){const s=new FileReader;s.readAsArrayBuffer(t),s.onloadend=function(){const t=YA(s.result),r={buffer:e.processBuffer(t),byteOffset:e.byteOffset,byteLength:t.byteLength};e.byteOffset+=t.byteLength,n(i.bufferViews.push(r)-1)}}))}processAccessor(t,e,i,n){const s=this.json;let r;if(t.array.constructor===Float32Array)r=RA;else if(t.array.constructor===Int32Array)r=TA;else if(t.array.constructor===Uint32Array)r=BA;else if(t.array.constructor===Int16Array)r=IA;else if(t.array.constructor===Uint16Array)r=MA;else if(t.array.constructor===Int8Array)r=CA;else{if(t.array.constructor!==Uint8Array)throw new Error("THREE.GLTFExporter: Unsupported bufferAttribute component type: "+t.array.constructor.name);r=wA}if(void 0===i&&(i=0),void 0!==n&&n!==1/0||(n=t.count),0===n)return null;const a=function(t,e,i){const n={min:new Array(t.itemSize).fill(Number.POSITIVE_INFINITY),max:new Array(t.itemSize).fill(Number.NEGATIVE_INFINITY)};for(let s=e;s<e+i;s++)for(let e=0;e<t.itemSize;e++){let i;t.itemSize>4?i=t.array[s*t.itemSize+e]:(0===e?i=t.getX(s):1===e?i=t.getY(s):2===e?i=t.getZ(s):3===e&&(i=t.getW(s)),!0===t.normalized&&(i=Je.normalize(i,t.array))),n.min[e]=Math.min(n.min[e],i),n.max[e]=Math.max(n.max[e],i)}return n}(t,i,n);let o;void 0!==e&&(o=t===e.index?LA:DA);const l=this.processBufferView(t,r,i,n,o),c={bufferView:l.id,byteOffset:l.byteOffset,componentType:r,count:n,max:a.max,min:a.min,type:{1:"SCALAR",2:"VEC2",3:"VEC3",4:"VEC4",9:"MAT3",16:"MAT4"}[t.itemSize]};return!0===t.normalized&&(c.normalized=!0),s.accessors||(s.accessors=[]),s.accessors.push(c)-1}processImage(t,e,i,n="image/png"){if(null!==t){const s=this,r=s.cache,a=s.json,o=s.options,l=s.pending;r.images.has(t)||r.images.set(t,{});const c=r.images.get(t),h=n+":flipY/"+i.toString();if(void 0!==c[h])return c[h];a.images||(a.images=[]);const u={mimeType:n},d=KA();d.width=Math.min(t.width,o.maxTextureSize),d.height=Math.min(t.height,o.maxTextureSize);const p=d.getContext("2d",{willReadFrequently:!0});if(!0===i&&(p.translate(0,d.height),p.scale(1,-1)),void 0!==t.data){e!==It&&console.error("GLTFExporter: Only RGBAFormat is supported.",e),(t.width>o.maxTextureSize||t.height>o.maxTextureSize)&&console.warn("GLTFExporter: Image size is bigger than maxTextureSize",t);const i=new Uint8ClampedArray(t.height*t.width*4);for(let e=0;e<i.length;e+=4)i[e+0]=t.data[e+0],i[e+1]=t.data[e+1],i[e+2]=t.data[e+2],i[e+3]=t.data[e+3];p.putImageData(new ImageData(i,t.width,t.height),0,0)}else{if(!("undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&t instanceof ImageBitmap||"undefined"!=typeof OffscreenCanvas&&t instanceof OffscreenCanvas))throw new Error("THREE.GLTFExporter: Invalid image type. Use HTMLImageElement, HTMLCanvasElement, ImageBitmap or OffscreenCanvas.");p.drawImage(t,0,0,d.width,d.height)}!0===o.binary?l.push(JA(d,n).then((t=>s.processBufferViewImage(t))).then((t=>{u.bufferView=t}))):void 0!==d.toDataURL?u.uri=d.toDataURL(n):l.push(JA(d,n).then((t=>(new FileReader).readAsDataURL(t))).then((t=>{u.uri=t})));const A=a.images.push(u)-1;return c[h]=A,A}throw new Error("THREE.GLTFExporter: No valid image data found. Unable to process texture.")}processSampler(t){const e=this.json;e.samplers||(e.samplers=[]);const i={magFilter:VA[t.magFilter],minFilter:VA[t.minFilter],wrapS:VA[t.wrapS],wrapT:VA[t.wrapT]};return e.samplers.push(i)-1}async processTextureAsync(t){const e=this.options,i=this.cache,n=this.json;if(i.textures.has(t))return i.textures.get(t);n.textures||(n.textures=[]),t instanceof Jr&&(t=await this.decompressTextureAsync(t,e.maxTextureSize));let s=t.userData.mimeType;"image/webp"===s&&(s="image/png");const r={sampler:this.processSampler(t),source:this.processImage(t.image,t.format,t.flipY,s)};t.name&&(r.name=t.name),await this._invokeAllAsync((async function(e){e.writeTexture&&await e.writeTexture(t,r)}));const a=n.textures.push(r)-1;return i.textures.set(t,a),a}async processMaterialAsync(t){const e=this.cache,i=this.json;if(e.materials.has(t))return e.materials.get(t);if(t.isShaderMaterial)return console.warn("GLTFExporter: THREE.ShaderMaterial not supported."),null;i.materials||(i.materials=[]);const n={pbrMetallicRoughness:{}};!0!==t.isMeshStandardMaterial&&!0!==t.isMeshBasicMaterial&&console.warn("GLTFExporter: Use MeshStandardMaterial or MeshBasicMaterial for best results.");const s=t.color.toArray().concat([t.opacity]);if(jA(s,[1,1,1,1])||(n.pbrMetallicRoughness.baseColorFactor=s),t.isMeshStandardMaterial?(n.pbrMetallicRoughness.metallicFactor=t.metalness,n.pbrMetallicRoughness.roughnessFactor=t.roughness):(n.pbrMetallicRoughness.metallicFactor=0,n.pbrMetallicRoughness.roughnessFactor=1),t.metalnessMap||t.roughnessMap){const e=await this.buildMetalRoughTextureAsync(t.metalnessMap,t.roughnessMap),i={index:await this.processTextureAsync(e),texCoord:e.channel};this.applyTextureTransform(i,e),n.pbrMetallicRoughness.metallicRoughnessTexture=i}if(t.map){const e={index:await this.processTextureAsync(t.map),texCoord:t.map.channel};this.applyTextureTransform(e,t.map),n.pbrMetallicRoughness.baseColorTexture=e}if(t.emissive){const e=t.emissive;if(Math.max(e.r,e.g,e.b)>0&&(n.emissiveFactor=t.emissive.toArray()),t.emissiveMap){const e={index:await this.processTextureAsync(t.emissiveMap),texCoord:t.emissiveMap.channel};this.applyTextureTransform(e,t.emissiveMap),n.emissiveTexture=e}}if(t.normalMap){const e={index:await this.processTextureAsync(t.normalMap),texCoord:t.normalMap.channel};t.normalScale&&1!==t.normalScale.x&&(e.scale=t.normalScale.x),this.applyTextureTransform(e,t.normalMap),n.normalTexture=e}if(t.aoMap){const e={index:await this.processTextureAsync(t.aoMap),texCoord:t.aoMap.channel};1!==t.aoMapIntensity&&(e.strength=t.aoMapIntensity),this.applyTextureTransform(e,t.aoMap),n.occlusionTexture=e}t.transparent?n.alphaMode="BLEND":t.alphaTest>0&&(n.alphaMode="MASK",n.alphaCutoff=t.alphaTest),2===t.side&&(n.doubleSided=!0),""!==t.name&&(n.name=t.name),this.serializeUserData(t,n),await this._invokeAllAsync((async function(e){e.writeMaterialAsync&&await e.writeMaterialAsync(t,n)}));const r=i.materials.push(n)-1;return e.materials.set(t,r),r}async processMeshAsync(t){const e=this.cache,i=this.json,n=[t.geometry.uuid];if(Array.isArray(t.material))for(let e=0,i=t.material.length;e<i;e++)n.push(t.material[e].uuid);else n.push(t.material.uuid);const s=n.join(":");if(e.meshes.has(s))return e.meshes.get(s);const r=t.geometry;let a;a=t.isLineSegments?xA:t.isLineLoop?_A:t.isLine?EA:t.isPoints?yA:t.material.wireframe?xA:SA;const o={},l={},c=[],h=[],u={uv:"TEXCOORD_0",uv1:"TEXCOORD_1",uv2:"TEXCOORD_2",uv3:"TEXCOORD_3",color:"COLOR_0",skinWeight:"WEIGHTS_0",skinIndex:"JOINTS_0"},d=r.getAttribute("normal");void 0===d||this.isNormalizedNormalAttribute(d)||(console.warn("THREE.GLTFExporter: Creating normalized normal attribute from the non-normalized one."),r.setAttribute("normal",this.createNormalizedNormalAttribute(d)));let p=null;for(let t in r.attributes){if("morph"===t.slice(0,5))continue;const i=r.attributes[t];t=u[t]||t.toUpperCase();if(/^(POSITION|NORMAL|TANGENT|TEXCOORD_\d+|COLOR_\d+|JOINTS_\d+|WEIGHTS_\d+)$/.test(t)||(t="_"+t),e.attributes.has(this.getUID(i))){l[t]=e.attributes.get(this.getUID(i));continue}p=null;const n=i.array;"JOINTS_0"!==t||n instanceof Uint16Array||n instanceof Uint8Array?(n instanceof Uint32Array||n instanceof Int32Array)&&!t.startsWith("_")&&(console.warn(`GLTFExporter: Attribute "${t}" converted to type FLOAT.`),p=bA.Utils.toFloat32BufferAttribute(i)):(console.warn('GLTFExporter: Attribute "skinIndex" converted to type UNSIGNED_SHORT.'),p=new rs(new Uint16Array(n),i.itemSize,i.normalized));const s=this.processAccessor(p||i,r);null!==s&&(t.startsWith("_")||this.detectMeshQuantization(t,i),l[t]=s,e.attributes.set(this.getUID(i),s))}if(void 0!==d&&r.setAttribute("normal",d),0===Object.keys(l).length)return null;if(void 0!==t.morphTargetInfluences&&t.morphTargetInfluences.length>0){const i=[],n=[],s={};if(void 0!==t.morphTargetDictionary)for(const e in t.morphTargetDictionary)s[t.morphTargetDictionary[e]]=e;for(let a=0;a<t.morphTargetInfluences.length;++a){const o={};let l=!1;for(const t in r.morphAttributes){if("position"!==t&&"normal"!==t){l||(console.warn("GLTFExporter: Only POSITION and NORMAL morph are supported."),l=!0);continue}const i=r.morphAttributes[t][a],n=t.toUpperCase(),s=r.attributes[t];if(e.attributes.has(this.getUID(i,!0))){o[n]=e.attributes.get(this.getUID(i,!0));continue}const c=i.clone();if(!r.morphTargetsRelative)for(let t=0,e=i.count;t<e;t++)for(let e=0;e<i.itemSize;e++)0===e&&c.setX(t,i.getX(t)-s.getX(t)),1===e&&c.setY(t,i.getY(t)-s.getY(t)),2===e&&c.setZ(t,i.getZ(t)-s.getZ(t)),3===e&&c.setW(t,i.getW(t)-s.getW(t));o[n]=this.processAccessor(c,r),e.attributes.set(this.getUID(s,!0),o[n])}h.push(o),i.push(t.morphTargetInfluences[a]),void 0!==t.morphTargetDictionary&&n.push(s[a])}o.weights=i,n.length>0&&(o.extras={},o.extras.targetNames=n)}const A=Array.isArray(t.material);if(A&&0===r.groups.length)return null;let m=!1;if(A&&null===r.index){const t=[];for(let e=0,i=r.attributes.position.count;e<i;e++)t[e]=e;r.setIndex(t),m=!0}const g=A?t.material:[t.material],f=A?r.groups:[{materialIndex:0,start:void 0,count:void 0}];for(let t=0,i=f.length;t<i;t++){const i={mode:a,attributes:l};if(this.serializeUserData(r,i),h.length>0&&(i.targets=h),null!==r.index){let n=this.getUID(r.index);void 0===f[t].start&&void 0===f[t].count||(n+=":"+f[t].start+":"+f[t].count),e.attributes.has(n)?i.indices=e.attributes.get(n):(i.indices=this.processAccessor(r.index,r,f[t].start,f[t].count),e.attributes.set(n,i.indices)),null===i.indices&&delete i.indices}const n=await this.processMaterialAsync(g[f[t].materialIndex]);null!==n&&(i.material=n),c.push(i)}!0===m&&r.setIndex(null),o.primitives=c,i.meshes||(i.meshes=[]),await this._invokeAllAsync((function(e){e.writeMesh&&e.writeMesh(t,o)}));const v=i.meshes.push(o)-1;return e.meshes.set(s,v),v}detectMeshQuantization(t,e){if(this.extensionsUsed[zA])return;let i;switch(e.array.constructor){case Int8Array:i="byte";break;case Uint8Array:i="unsigned byte";break;case Int16Array:i="short";break;case Uint16Array:i="unsigned short";break;default:return}e.normalized&&(i+=" normalized");const n=t.split("_",1)[0];vA[n]&&vA[n].includes(i)&&(this.extensionsUsed[zA]=!0,this.extensionsRequired[zA]=!0)}processCamera(t){const e=this.json;e.cameras||(e.cameras=[]);const i=t.isOrthographicCamera,n={type:i?"orthographic":"perspective"};return i?n.orthographic={xmag:2*t.right,ymag:2*t.top,zfar:t.far<=0?.001:t.far,znear:t.near<0?0:t.near}:n.perspective={aspectRatio:t.aspect,yfov:Je.degToRad(t.fov),zfar:t.far<=0?.001:t.far,znear:t.near<0?0:t.near},""!==t.name&&(n.name=t.type),e.cameras.push(n)-1}processAnimation(t,e){const i=this.json,n=this.nodeMap;i.animations||(i.animations=[]);const s=(t=bA.Utils.mergeMorphTargetTracks(t.clone(),e)).tracks,r=[],a=[];for(let t=0;t<s.length;++t){const i=s[t],o=nl.parseTrackName(i.name);let l=nl.findNode(e,o.nodeName);const c=WA[o.propertyName];if("bones"===o.objectName&&(l=!0===l.isSkinnedMesh?l.skeleton.getBoneByName(o.objectIndex):void 0),!l||!c){console.warn('THREE.GLTFExporter: Could not export animation track "%s".',i.name);continue}const h=1;let u,d=i.values.length/i.times.length;c===WA.morphTargetInfluences&&(d/=l.morphTargetInfluences.length),!0===i.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline?(u="CUBICSPLINE",d/=3):u=i.getInterpolation()===me?"STEP":"LINEAR",a.push({input:this.processAccessor(new rs(i.times,h)),output:this.processAccessor(new rs(i.values,d)),interpolation:u}),r.push({sampler:a.length-1,target:{node:n.get(l),path:c}})}return i.animations.push({name:t.name||"clip_"+i.animations.length,samplers:a,channels:r}),i.animations.length-1}processSkin(t){const e=this.json,i=this.nodeMap,n=e.nodes[i.get(t)],s=t.skeleton;if(void 0===s)return null;const r=t.skeleton.bones[0];if(void 0===r)return null;const a=[],o=new Float32Array(16*s.bones.length),l=new en;for(let e=0;e<s.bones.length;++e)a.push(i.get(s.bones[e])),l.copy(s.boneInverses[e]),l.multiply(t.bindMatrix).toArray(o,16*e);void 0===e.skins&&(e.skins=[]),e.skins.push({inverseBindMatrices:this.processAccessor(new rs(o,16)),joints:a,skeleton:i.get(r)});return n.skin=e.skins.length-1}async processNodeAsync(t){const e=this.json,i=this.options,n=this.nodeMap;e.nodes||(e.nodes=[]);const s={};if(i.trs){const e=t.quaternion.toArray(),i=t.position.toArray(),n=t.scale.toArray();jA(e,[0,0,0,1])||(s.rotation=e),jA(i,[0,0,0])||(s.translation=i),jA(n,[1,1,1])||(s.scale=n)}else t.matrixAutoUpdate&&t.updateMatrix(),!1===jA(t.matrix.elements,[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1])&&(s.matrix=t.matrix.elements);if(""!==t.name&&(s.name=String(t.name)),this.serializeUserData(t,s),t.isMesh||t.isLine||t.isPoints){const e=await this.processMeshAsync(t);null!==e&&(s.mesh=e)}else t.isCamera&&(s.camera=this.processCamera(t));if(t.isSkinnedMesh&&this.skins.push(t),t.children.length>0){const e=[];for(let n=0,s=t.children.length;n<s;n++){const s=t.children[n];if(s.visible||!1===i.onlyVisible){const t=await this.processNodeAsync(s);null!==t&&e.push(t)}}e.length>0&&(s.children=e)}await this._invokeAllAsync((function(e){e.writeNode&&e.writeNode(t,s)}));const r=e.nodes.push(s)-1;return n.set(t,r),r}async processSceneAsync(t){const e=this.json,i=this.options;e.scenes||(e.scenes=[],e.scene=0);const n={};""!==t.name&&(n.name=t.name),e.scenes.push(n);const s=[];for(let e=0,n=t.children.length;e<n;e++){const n=t.children[e];if(n.visible||!1===i.onlyVisible){const t=await this.processNodeAsync(n);null!==t&&s.push(t)}}s.length>0&&(n.nodes=s),this.serializeUserData(t,n)}async processObjectsAsync(t){const e=new Xs;e.name="AuxScene";for(let i=0;i<t.length;i++)e.children.push(t[i]);await this.processSceneAsync(e)}async processInputAsync(t){const e=this.options;t=t instanceof Array?t:[t],await this._invokeAllAsync((function(e){e.beforeParse&&e.beforeParse(t)}));const i=[];for(let e=0;e<t.length;e++)t[e]instanceof Xs?await this.processSceneAsync(t[e]):i.push(t[e]);i.length>0&&await this.processObjectsAsync(i);for(let t=0;t<this.skins.length;++t)this.processSkin(this.skins[t]);for(let i=0;i<e.animations.length;++i)this.processAnimation(e.animations[i],t[0]);await this._invokeAllAsync((function(e){e.afterParse&&e.afterParse(t)}))}async _invokeAllAsync(t){for(let e=0,i=this.plugins.length;e<i;e++)await t(this.plugins[e])}}class ZA{constructor(t){this.writer=t,this.name="KHR_lights_punctual"}writeNode(t,e){if(!t.isLight)return;if(!t.isDirectionalLight&&!t.isPointLight&&!t.isSpotLight)return void console.warn("THREE.GLTFExporter: Only directional, point, and spot lights are supported.",t);const i=this.writer,n=i.json,s=i.extensionsUsed,r={};t.name&&(r.name=t.name),r.color=t.color.toArray(),r.intensity=t.intensity,t.isDirectionalLight?r.type="directional":t.isPointLight?(r.type="point",t.distance>0&&(r.range=t.distance)):t.isSpotLight&&(r.type="spot",t.distance>0&&(r.range=t.distance),r.spot={},r.spot.innerConeAngle=(1-t.penumbra)*t.angle,r.spot.outerConeAngle=t.angle),void 0!==t.decay&&2!==t.decay&&console.warn("THREE.GLTFExporter: Light decay may be lost. glTF is physically-based, and expects light.decay=2."),!t.target||t.target.parent===t&&0===t.target.position.x&&0===t.target.position.y&&-1===t.target.position.z||console.warn("THREE.GLTFExporter: Light direction may be lost. For best results, make light.target a child of the light with position 0,0,-1."),s[this.name]||(n.extensions=n.extensions||{},n.extensions[this.name]={lights:[]},s[this.name]=!0);const a=n.extensions[this.name].lights;a.push(r),e.extensions=e.extensions||{},e.extensions[this.name]={light:a.length-1}}}class tm{constructor(t){this.writer=t,this.name="KHR_materials_unlit"}async writeMaterialAsync(t,e){if(!t.isMeshBasicMaterial)return;const i=this.writer.extensionsUsed;e.extensions=e.extensions||{},e.extensions[this.name]={},i[this.name]=!0,e.pbrMetallicRoughness.metallicFactor=0,e.pbrMetallicRoughness.roughnessFactor=.9}}class em{constructor(t){this.writer=t,this.name="KHR_materials_clearcoat"}async writeMaterialAsync(t,e){if(!t.isMeshPhysicalMaterial||0===t.clearcoat)return;const i=this.writer,n=i.extensionsUsed,s={};if(s.clearcoatFactor=t.clearcoat,t.clearcoatMap){const e={index:await i.processTextureAsync(t.clearcoatMap),texCoord:t.clearcoatMap.channel};i.applyTextureTransform(e,t.clearcoatMap),s.clearcoatTexture=e}if(s.clearcoatRoughnessFactor=t.clearcoatRoughness,t.clearcoatRoughnessMap){const e={index:await i.processTextureAsync(t.clearcoatRoughnessMap),texCoord:t.clearcoatRoughnessMap.channel};i.applyTextureTransform(e,t.clearcoatRoughnessMap),s.clearcoatRoughnessTexture=e}if(t.clearcoatNormalMap){const e={index:await i.processTextureAsync(t.clearcoatNormalMap),texCoord:t.clearcoatNormalMap.channel};1!==t.clearcoatNormalScale.x&&(e.scale=t.clearcoatNormalScale.x),i.applyTextureTransform(e,t.clearcoatNormalMap),s.clearcoatNormalTexture=e}e.extensions=e.extensions||{},e.extensions[this.name]=s,n[this.name]=!0}}class im{constructor(t){this.writer=t,this.name="KHR_materials_dispersion"}async writeMaterialAsync(t,e){if(!t.isMeshPhysicalMaterial||0===t.dispersion)return;const i=this.writer.extensionsUsed,n={};n.dispersion=t.dispersion,e.extensions=e.extensions||{},e.extensions[this.name]=n,i[this.name]=!0}}class nm{constructor(t){this.writer=t,this.name="KHR_materials_iridescence"}async writeMaterialAsync(t,e){if(!t.isMeshPhysicalMaterial||0===t.iridescence)return;const i=this.writer,n=i.extensionsUsed,s={};if(s.iridescenceFactor=t.iridescence,t.iridescenceMap){const e={index:await i.processTextureAsync(t.iridescenceMap),texCoord:t.iridescenceMap.channel};i.applyTextureTransform(e,t.iridescenceMap),s.iridescenceTexture=e}if(s.iridescenceIor=t.iridescenceIOR,s.iridescenceThicknessMinimum=t.iridescenceThicknessRange[0],s.iridescenceThicknessMaximum=t.iridescenceThicknessRange[1],t.iridescenceThicknessMap){const e={index:await i.processTextureAsync(t.iridescenceThicknessMap),texCoord:t.iridescenceThicknessMap.channel};i.applyTextureTransform(e,t.iridescenceThicknessMap),s.iridescenceThicknessTexture=e}e.extensions=e.extensions||{},e.extensions[this.name]=s,n[this.name]=!0}}class sm{constructor(t){this.writer=t,this.name="KHR_materials_transmission"}async writeMaterialAsync(t,e){if(!t.isMeshPhysicalMaterial||0===t.transmission)return;const i=this.writer,n=i.extensionsUsed,s={};if(s.transmissionFactor=t.transmission,t.transmissionMap){const e={index:await i.processTextureAsync(t.transmissionMap),texCoord:t.transmissionMap.channel};i.applyTextureTransform(e,t.transmissionMap),s.transmissionTexture=e}e.extensions=e.extensions||{},e.extensions[this.name]=s,n[this.name]=!0}}class rm{constructor(t){this.writer=t,this.name="KHR_materials_volume"}async writeMaterialAsync(t,e){if(!t.isMeshPhysicalMaterial||0===t.transmission)return;const i=this.writer,n=i.extensionsUsed,s={};if(s.thicknessFactor=t.thickness,t.thicknessMap){const e={index:await i.processTextureAsync(t.thicknessMap),texCoord:t.thicknessMap.channel};i.applyTextureTransform(e,t.thicknessMap),s.thicknessTexture=e}t.attenuationDistance!==1/0&&(s.attenuationDistance=t.attenuationDistance),s.attenuationColor=t.attenuationColor.toArray(),e.extensions=e.extensions||{},e.extensions[this.name]=s,n[this.name]=!0}}class am{constructor(t){this.writer=t,this.name="KHR_materials_ior"}async writeMaterialAsync(t,e){if(!t.isMeshPhysicalMaterial||1.5===t.ior)return;const i=this.writer.extensionsUsed,n={};n.ior=t.ior,e.extensions=e.extensions||{},e.extensions[this.name]=n,i[this.name]=!0}}class om{constructor(t){this.writer=t,this.name="KHR_materials_specular"}async writeMaterialAsync(t,e){if(!t.isMeshPhysicalMaterial||1===t.specularIntensity&&t.specularColor.equals(qA)&&!t.specularIntensityMap&&!t.specularColorMap)return;const i=this.writer,n=i.extensionsUsed,s={};if(t.specularIntensityMap){const e={index:await i.processTextureAsync(t.specularIntensityMap),texCoord:t.specularIntensityMap.channel};i.applyTextureTransform(e,t.specularIntensityMap),s.specularTexture=e}if(t.specularColorMap){const e={index:await i.processTextureAsync(t.specularColorMap),texCoord:t.specularColorMap.channel};i.applyTextureTransform(e,t.specularColorMap),s.specularColorTexture=e}s.specularFactor=t.specularIntensity,s.specularColorFactor=t.specularColor.toArray(),e.extensions=e.extensions||{},e.extensions[this.name]=s,n[this.name]=!0}}class lm{constructor(t){this.writer=t,this.name="KHR_materials_sheen"}async writeMaterialAsync(t,e){if(!t.isMeshPhysicalMaterial||0==t.sheen)return;const i=this.writer,n=i.extensionsUsed,s={};if(t.sheenRoughnessMap){const e={index:await i.processTextureAsync(t.sheenRoughnessMap),texCoord:t.sheenRoughnessMap.channel};i.applyTextureTransform(e,t.sheenRoughnessMap),s.sheenRoughnessTexture=e}if(t.sheenColorMap){const e={index:await i.processTextureAsync(t.sheenColorMap),texCoord:t.sheenColorMap.channel};i.applyTextureTransform(e,t.sheenColorMap),s.sheenColorTexture=e}s.sheenRoughnessFactor=t.sheenRoughness,s.sheenColorFactor=t.sheenColor.toArray(),e.extensions=e.extensions||{},e.extensions[this.name]=s,n[this.name]=!0}}class cm{constructor(t){this.writer=t,this.name="KHR_materials_anisotropy"}async writeMaterialAsync(t,e){if(!t.isMeshPhysicalMaterial||0==t.anisotropy)return;const i=this.writer,n=i.extensionsUsed,s={};if(t.anisotropyMap){const e={index:await i.processTextureAsync(t.anisotropyMap)};i.applyTextureTransform(e,t.anisotropyMap),s.anisotropyTexture=e}s.anisotropyStrength=t.anisotropy,s.anisotropyRotation=t.anisotropyRotation,e.extensions=e.extensions||{},e.extensions[this.name]=s,n[this.name]=!0}}class hm{constructor(t){this.writer=t,this.name="KHR_materials_emissive_strength"}async writeMaterialAsync(t,e){if(!t.isMeshStandardMaterial||1===t.emissiveIntensity)return;const i=this.writer.extensionsUsed,n={};n.emissiveStrength=t.emissiveIntensity,e.extensions=e.extensions||{},e.extensions[this.name]=n,i[this.name]=!0}}class um{constructor(t){this.writer=t,this.name="EXT_materials_bump"}async writeMaterialAsync(t,e){if(!t.isMeshStandardMaterial||1===t.bumpScale&&!t.bumpMap)return;const i=this.writer,n=i.extensionsUsed,s={};if(t.bumpMap){const e={index:await i.processTextureAsync(t.bumpMap),texCoord:t.bumpMap.channel};i.applyTextureTransform(e,t.bumpMap),s.bumpTexture=e}s.bumpFactor=t.bumpScale,e.extensions=e.extensions||{},e.extensions[this.name]=s,n[this.name]=!0}}class dm{constructor(t){this.writer=t,this.name="EXT_mesh_gpu_instancing"}writeNode(t,e){if(!t.isInstancedMesh)return;const i=this.writer,n=t,s=new Float32Array(3*n.count),r=new Float32Array(4*n.count),a=new Float32Array(3*n.count),o=new en,l=new Ci,c=new Si,h=new Ci;for(let t=0;t<n.count;t++)n.getMatrixAt(t,o),o.decompose(l,c,h),l.toArray(s,3*t),c.toArray(r,4*t),h.toArray(a,3*t);const u={TRANSLATION:i.processAccessor(new rs(s,3)),ROTATION:i.processAccessor(new rs(r,4)),SCALE:i.processAccessor(new rs(a,3))};n.instanceColor&&(u._COLOR_0=i.processAccessor(n.instanceColor)),e.extensions=e.extensions||{},e.extensions[this.name]={attributes:u},i.extensionsUsed[this.name]=!0,i.extensionsRequired[this.name]=!0}}bA.Utils={insertKeyframe:function(t,e){const i=.001,n=t.getValueSize(),s=new t.TimeBufferType(t.times.length+1),r=new t.ValueBufferType(t.values.length+n),a=t.createInterpolant(new t.ValueBufferType(n));let o;if(0===t.times.length){s[0]=e;for(let t=0;t<n;t++)r[t]=0;o=0}else if(e<t.times[0]){if(Math.abs(t.times[0]-e)<i)return 0;s[0]=e,s.set(t.times,1),r.set(a.evaluate(e),0),r.set(t.values,n),o=0}else if(e>t.times[t.times.length-1]){if(Math.abs(t.times[t.times.length-1]-e)<i)return t.times.length-1;s[s.length-1]=e,s.set(t.times,0),r.set(t.values,0),r.set(a.evaluate(e),t.values.length),o=s.length-1}else for(let l=0;l<t.times.length;l++){if(Math.abs(t.times[l]-e)<i)return l;if(t.times[l]<e&&t.times[l+1]>e){s.set(t.times.slice(0,l+1),0),s[l+1]=e,s.set(t.times.slice(l+1),l+2),r.set(t.values.slice(0,(l+1)*n),0),r.set(a.evaluate(e),(l+1)*n),r.set(t.values.slice((l+1)*n),(l+2)*n),o=l+1;break}}return t.times=s,t.values=r,o},mergeMorphTargetTracks:function(t,e){const i=[],n={},s=t.tracks;for(let t=0;t<s.length;++t){let r=s[t];const a=nl.parseTrackName(r.name),o=nl.findNode(e,a.nodeName);if("morphTargetInfluences"!==a.propertyName||void 0===a.propertyIndex){i.push(r);continue}if(r.createInterpolant!==r.InterpolantFactoryMethodDiscrete&&r.createInterpolant!==r.InterpolantFactoryMethodLinear){if(r.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline)throw new Error("THREE.GLTFExporter: Cannot merge tracks with glTF CUBICSPLINE interpolation.");console.warn("THREE.GLTFExporter: Morph target interpolation mode not yet supported. Using LINEAR instead."),r=r.clone(),r.setInterpolation(ge)}const l=o.morphTargetInfluences.length,c=o.morphTargetDictionary[a.propertyIndex];if(void 0===c)throw new Error("THREE.GLTFExporter: Morph target name not found: "+a.propertyIndex);let h;if(void 0===n[o.uuid]){h=r.clone();const t=new h.ValueBufferType(l*h.times.length);for(let e=0;e<h.times.length;e++)t[e*l+c]=h.values[e];h.name=(a.nodeName||"")+".morphTargetInfluences",h.values=t,n[o.uuid]=h,i.push(h);continue}const u=r.createInterpolant(new r.ValueBufferType(1));h=n[o.uuid];for(let t=0;t<h.times.length;t++)h.values[t*l+c]=u.evaluate(h.times[t]);for(let t=0;t<r.times.length;t++){const e=this.insertKeyframe(h,r.times[t]);h.values[e*l+c]=r.values[t]}}return t.tracks=i,t},toFloat32BufferAttribute:function(t){const e=new rs(new Float32Array(t.count*t.itemSize),t.itemSize,!1);if(!t.normalized&&!t.isInterleavedBufferAttribute)return e.array.set(t.array),e;for(let i=0,n=t.count;i<n;i++)for(let n=0;n<t.itemSize;n++)e.setComponent(i,n,t.getComponent(i,n));return e}};
/* @license
 * Copyright 2021 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
const pm=t=>void 0!==t.material&&t.userData&&t.userData.variantMaterials&&!!Array.from(t.userData.variantMaterials.values()).filter((t=>Am(t.material))),Am=t=>t&&t.isMaterial&&!Array.isArray(t);class mm{constructor(t){this.writer=t,this.name="KHR_materials_variants",this.variantNames=[]}beforeParse(t){const e=new Set,i=t=>{if(!pm(t))return;const i=t.userData.variantMaterials,n=t.userData.variantData;for(const[t,s]of n){const n=i.get(s.index);n&&Am(n.material)&&e.add(t)}};if(Array.isArray(t))for(const e of t)e.traverse(i);else t.traverse(i);e.forEach((t=>this.variantNames.push(t)))}async writeMesh(t,e){if(!pm(t))return;const i=t.userData,n=i.variantMaterials,s=i.variantData,r=new Map,a=new Map,o=Array.from(s.values()).sort(((t,e)=>t.index-e.index));for(const[t,e]of o.entries())a.set(e.index,t);for(const t of s.values()){const e=n.get(t.index);if(!e||!Am(e.material))continue;const i=await this.writer.processMaterialAsync(e.material);r.has(i)||r.set(i,{material:i,variants:[]}),r.get(i).variants.push(a.get(t.index))}const l=Array.from(r.values()).map((t=>t.variants.sort(((t,e)=>t-e))&&t)).sort(((t,e)=>t.material-e.material));if(0===l.length)return;const c=Am(i.originalMaterial)?await this.writer.processMaterialAsync(i.originalMaterial):-1;for(const t of e.primitives)c>=0&&(t.material=c),t.extensions=t.extensions||{},t.extensions[this.name]={mappings:l}}afterParse(){if(0===this.variantNames.length)return;const t=this.writer.json;t.extensions=t.extensions||{};const e=this.variantNames.map((t=>({name:t})));t.extensions[this.name]={variants:e},this.writer.extensionsUsed[this.name]=!0}}class gm{constructor(t,e,i,n,s){this.xrLight=t,this.renderer=e,this.lightProbe=i,this.xrWebGLBinding=null,this.estimationStartCallback=s,this.frameCallback=this.onXRFrame.bind(this);const r=e.xr.getSession();if(n&&"XRWebGLBinding"in window){const i=new Vs(16);t.environment=i.texture;const n=e.getContext();switch(r.preferredReflectionFormat){case"srgba8":n.getExtension("EXT_sRGB");break;case"rgba16f":n.getExtension("OES_texture_half_float")}this.xrWebGLBinding=new XRWebGLBinding(r,n),this.lightProbe.addEventListener("reflectionchange",(()=>{this.updateReflection()}))}r.requestAnimationFrame(this.frameCallback)}updateReflection(){const t=this.renderer.properties.get(this.xrLight.environment);if(t){const e=this.xrWebGLBinding.getReflectionCubeMap(this.lightProbe);e&&(t.__webglTexture=e,this.xrLight.environment.needsPMREMUpdate=!0)}}onXRFrame(t,e){if(!this.xrLight)return;e.session.requestAnimationFrame(this.frameCallback);const i=e.getLightEstimate(this.lightProbe);if(i){this.xrLight.lightProbe.sh.fromArray(i.sphericalHarmonicsCoefficients),this.xrLight.lightProbe.intensity=1;const t=Math.max(1,Math.max(i.primaryLightIntensity.x,Math.max(i.primaryLightIntensity.y,i.primaryLightIntensity.z)));this.xrLight.directionalLight.color.setRGB(i.primaryLightIntensity.x/t,i.primaryLightIntensity.y/t,i.primaryLightIntensity.z/t),this.xrLight.directionalLight.intensity=t,this.xrLight.directionalLight.position.copy(i.primaryLightDirection),this.estimationStartCallback&&(this.estimationStartCallback(),this.estimationStartCallback=null)}}dispose(){this.xrLight=null,this.renderer=null,this.lightProbe=null,this.xrWebGLBinding=null}}class fm extends Ws{constructor(t,e=!0){super(),this.lightProbe=new qo,this.lightProbe.intensity=0,this.add(this.lightProbe),this.directionalLight=new Vo,this.directionalLight.intensity=0,this.add(this.directionalLight),this.environment=null;let i=null,n=!1;t.xr.addEventListener("sessionstart",(()=>{const s=t.xr.getSession();"requestLightProbe"in s&&s.requestLightProbe({reflectionFormat:s.preferredReflectionFormat}).then((s=>{i=new gm(this,t,s,e,(()=>{n=!0,this.dispatchEvent({type:"estimationstart"})}))}))})),t.xr.addEventListener("sessionend",(()=>{i&&(i.dispose(),i=null),n&&this.dispatchEvent({type:"estimationend"})})),this.dispose=()=>{i&&(i.dispose(),i=null),this.remove(this.lightProbe),this.lightProbe=null,this.remove(this.directionalLight),this.directionalLight=null,this.environment=null}}}
/* @license
 * Copyright 2020 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */class vm{constructor(t=50){this.velocity=0,this.naturalFrequency=0,this.setDecayTime(t)}setDecayTime(t){this.naturalFrequency=1/Math.max(.001,t)}update(t,e,i,n){const s=2e-4*this.naturalFrequency;if(null==t||0===n)return e;if(t===e&&0===this.velocity)return e;if(i<0)return t;const r=t-e,a=this.velocity+this.naturalFrequency*r,o=r+i*a,l=Math.exp(-this.naturalFrequency*i),c=(a-this.naturalFrequency*o)*l,h=-this.naturalFrequency*(c+a*l);return Math.abs(c)<s*Math.abs(n)&&h*r>=0?(this.velocity=0,e):(this.velocity=c,e+o*l)}}
/* @license
* Copyright 2020 Google LLC. All Rights Reserved.
* Licensed under the Apache License, Version 2.0 (the 'License');
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an 'AS IS' BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/const bm={MIN_TOUCH_AREA:.05,BASE_RADIUS:.15,LINE_WIDTH:.02,SEGMENTS:16,DELTA_PHI:Math.PI/32,COLORS:{EDGE_FALLOFF:new Xn(.98,.98,.98),EDGE_CUTOFF:new Xn(.8,.8,.8),FILL_FALLOFF:new Xn(.4,.4,.4),FILL_CUTOFF:new Xn(.4,.4,.4),ACTIVE_EDGE:new Xn(1,1,1),ACTIVE_FILL:new Xn(.6,.6,.6)},MAX_OPACITY:.75,FILL_OPACITY_MULTIPLIER:.5,INTERACTIVE_OPACITY_MULTIPLIER:1.2,MIN_DISTANCE:.5,MAX_DISTANCE:10,BASE_SCALE:1,DISTANCE_SCALE_FACTOR:.3,COLOR_LERP_FACTOR:.15,SCREEN_SPACE_SCALE:1.2,SIZE_UPDATE_THRESHOLD:.001,GEOMETRY_UPDATE_DEBOUNCE:100},ym=new $e,xm=(t,e,i,n,s)=>{let r=e>0?i>0?0:-Math.PI/2:i>0?Math.PI/2:Math.PI;for(let a=0;a<=bm.SEGMENTS;++a)t.push(e+(n-s)*Math.cos(r),i+(n-s)*Math.sin(r),0,e+n*Math.cos(r),i+n*Math.sin(r),0),r+=bm.DELTA_PHI};class _m extends Ms{constructor(t,e){super(new gs),this.shadowHeight=0,this.isActive=!1,this.isHovered=!1,this.lastGeometryUpdateTime=0,this.needsGeometryUpdate=!1,this.scene=t,this.side=e,this.currentSize=new Ci,this.goalSize=new Ci,this.sizeDamper=new vm,this.updateSizeFromScene(),this.edgeMaterial=new $n({color:bm.COLORS.EDGE_FALLOFF,transparent:!0,opacity:0,side:2,depthWrite:!1,blending:2}),this.fillMaterial=new $n({color:bm.COLORS.FILL_FALLOFF,transparent:!0,opacity:0,side:2,depthWrite:!1,blending:1}),this.material=this.edgeMaterial,this.goalOpacity=0,this.opacityDamper=new vm,this.createHitMeshes(),this.updatePositionFromScene(),t.target.add(this),t.target.add(this.hitBox),this.offsetHeight=0}updateSizeFromScene(){const{size:t}=this.scene;this.goalSize.copy(t);const e=Math.sqrt(t.x*t.x+t.z*t.z),i=Math.max(bm.MIN_TOUCH_AREA,.4*e);this.goalSize.x<i&&(this.goalSize.x=i),this.goalSize.z<i&&(this.goalSize.z=i),this.updateGeometry()}updateGeometry(){const t=this.geometry,e=[],i=[],n=this.goalSize.x/2,s=("back"===this.side?this.goalSize.y:this.goalSize.z)/2,r=Math.min(n,s),a=Math.max(.7*bm.BASE_RADIUS,.2*r),o=Math.max(.7*bm.LINE_WIDTH,.025*r);xm(i,n,s,a,o),xm(i,-n,s,a,o),xm(i,-n,-s,a,o),xm(i,n,-s,a,o);const l=i.length/3;for(let t=0;t<l-2;t+=2)e.push(t,t+1,t+3,t,t+3,t+2);const c=l-2;e.push(c,c+1,1,c,1,0),t.setAttribute("position",new ls(i,3)),t.setIndex(e),t.computeBoundingSphere()}createHitMeshes(){const t=this.goalSize.x/2,e=("back"===this.side?this.goalSize.y:this.goalSize.z)/2,i=Math.min(t,e),n=Math.max(.7*bm.BASE_RADIUS,.2*i);this.hitPlane=new Ms(new Xa(2*(t+n),2*(e+n))),this.hitPlane.visible=!1,this.hitPlane.material.side=2,this.add(this.hitPlane),this.hitBox=new Ms(new Bs(this.goalSize.x+2*n,this.goalSize.y+n,this.goalSize.z+2*n)),this.hitBox.visible=!1,this.hitBox.material.side=2,this.add(this.hitBox)}updatePositionFromScene(){const{boundingBox:t}=this.scene;switch(t.getCenter(this.position),this.rotation.set(0,0,0),this.side){case"bottom":this.rotateX(-Math.PI/2),this.shadowHeight=t.min.y,this.position.y=this.shadowHeight;break;case"back":this.shadowHeight=t.min.z,this.position.z=this.shadowHeight;break;case"top":this.rotateX(-Math.PI/2),this.shadowHeight=t.max.y,this.position.y=this.shadowHeight}if(this.hitBox){const e=(this.side,(this.goalSize.y+bm.BASE_RADIUS)/2);this.hitBox.position.y=e+t.min.y}}updateFromModelChanges(){this.updateSizeFromScene(),this.updatePositionFromScene(),this.updateGeometry(),this.updateHitMeshes(),this.ensureProperOrientation(),this.needsGeometryUpdate=!1,this.lastGeometryUpdateTime=performance.now()}ensureProperOrientation(){"bottom"===this.side?(this.rotation.x=-Math.PI/2,this.rotation.y=0,this.rotation.z=0):"back"===this.side&&(this.rotation.x=0,this.rotation.y=0,this.rotation.z=0)}setScreenSpaceMode(t){t?this.scale.set(bm.SCREEN_SPACE_SCALE,bm.SCREEN_SPACE_SCALE,bm.SCREEN_SPACE_SCALE):this.scale.set(1,1,1)}updateHitMeshes(){if(this.hitPlane&&this.hitBox){const t=this.goalSize.x/2,e=("back"===this.side?this.goalSize.y:this.goalSize.z)/2,i=Math.min(t,e),n=Math.max(.7*bm.BASE_RADIUS,.2*i),s=new Xa(2*(t+n),2*(e+n));this.hitPlane.geometry.dispose(),this.hitPlane.geometry=s;const r=new Bs(this.goalSize.x+2*n,this.goalSize.y+n,this.goalSize.z+2*n);this.hitBox.geometry.dispose(),this.hitBox.geometry=r}}setInteractionState(t,e=!1){this.isActive=t,this.isHovered=e,this.updateVisualState()}updateVisualState(){let t,e;this.isActive?(t=bm.COLORS.ACTIVE_EDGE,e=bm.COLORS.ACTIVE_FILL):this.isHovered?(t=bm.COLORS.EDGE_FALLOFF,e=bm.COLORS.FILL_FALLOFF):(t=bm.COLORS.EDGE_CUTOFF,e=bm.COLORS.FILL_CUTOFF),this.edgeMaterial.color.lerp(t,bm.COLOR_LERP_FACTOR),this.fillMaterial.color.lerp(e,bm.COLOR_LERP_FACTOR)}applyDistanceScaling(t){const e=t.distanceTo(this.position),i=Math.max(bm.MIN_DISTANCE,Math.min(bm.MAX_DISTANCE,e)),n=bm.BASE_SCALE+(i-bm.MIN_DISTANCE)*bm.DISTANCE_SCALE_FACTOR;this.scale.set(n,n,n)}getHit(t,e,i){ym.set(e,-i),this.hitPlane.visible=!0;const n=t.positionAndNormalFromPoint(ym,this.hitPlane);return this.hitPlane.visible=!1,null==n?null:n.position}getExpandedHit(t,e,i){this.hitPlane.scale.set(1e3,1e3,1e3),this.hitPlane.updateMatrixWorld();const n=this.getHit(t,e,i);return this.hitPlane.scale.set(1,1,1),n}controllerIntersection(t,e){this.hitBox.visible=!0;const i=t.hitFromController(e,this.hitBox);return this.hitBox.visible=!1,i}set offsetHeight(t){t-=.001,"back"===this.side?this.position.z=this.shadowHeight+t:this.position.y=this.shadowHeight+t}get offsetHeight(){return"back"===this.side?this.position.z-this.shadowHeight:this.position.y-this.shadowHeight}set show(t){this.goalOpacity=t?bm.MAX_OPACITY:0}updateOpacity(t){const e=this.material,i=this.opacityDamper.update(e.opacity,this.goalOpacity,t,1);this.edgeMaterial.opacity=i,this.fillMaterial.opacity=i*bm.FILL_OPACITY_MULTIPLIER,(this.isActive||this.isHovered)&&(this.edgeMaterial.opacity=i*bm.INTERACTIVE_OPACITY_MULTIPLIER),this.visible=i>0}update(t,e){if(this.updateOpacity(t),!this.currentSize.equals(this.goalSize)){const e=new Ci;e.x=this.sizeDamper.update(this.currentSize.x,this.goalSize.x,t,1),e.y=this.sizeDamper.update(this.currentSize.y,this.goalSize.y,t,1),e.z=this.sizeDamper.update(this.currentSize.z,this.goalSize.z,t,1);e.distanceTo(this.currentSize)>bm.SIZE_UPDATE_THRESHOLD&&(this.currentSize.copy(e),this.needsGeometryUpdate=!0)}const i=performance.now();this.needsGeometryUpdate&&i-this.lastGeometryUpdateTime>bm.GEOMETRY_UPDATE_DEBOUNCE&&(this.updateGeometry(),this.updateHitMeshes(),this.needsGeometryUpdate=!1,this.lastGeometryUpdateTime=i),e&&this.applyDistanceScaling(e),this.updateVisualState()}getSize(){return this.goalSize.clone()}dispose(){const{geometry:t,material:e}=this.hitPlane;t.dispose(),e.dispose(),this.hitBox.geometry.dispose(),this.hitBox.material.dispose(),this.geometry.dispose(),this.edgeMaterial.dispose(),this.fillMaterial.dispose(),this.hitBox.removeFromParent(),this.removeFromParent()}}
/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */const Em=(t,e)=>({type:"number",number:t,unit:e}),Sm=(()=>{const t={};return e=>{const i=e;if(i in t)return t[i];const n=[];let s=0;for(;e;){if(++s>1e3){e="";break}const t=Cm(e),i=t.nodes[0];if(null==i||0===i.terms.length)break;n.push(i),e=t.remainingInput}return t[i]=n}})(),Cm=(()=>{const t=/^(\-\-|[a-z\u0240-\uffff])/i,e=/^([\*\+\/]|[\-]\s)/i,i=/^[\),]/;return n=>{const s=[];for(;n.length&&(n=n.trim(),!i.test(n));)if("("===n[0]){const{nodes:t,remainingInput:e}=Tm(n);n=e,s.push({type:"function",name:{type:"ident",value:"calc"},arguments:t})}else if(t.test(n)){const t=wm(n),e=t.nodes[0];if("("===(n=t.remainingInput)[0]){const{nodes:t,remainingInput:i}=Tm(n);s.push({type:"function",name:e,arguments:t}),n=i}else s.push(e)}else if(e.test(n))s.push({type:"operator",value:n[0]}),n=n.slice(1);else{const{nodes:t,remainingInput:e}="#"===n[0]?Mm(n):Im(n);if(0===t.length)break;s.push(t[0]),n=e}return{nodes:[{type:"expression",terms:s}],remainingInput:n}}})(),wm=(()=>{const t=/[^a-z0-9_\-\u0240-\uffff]/i;return e=>{const i=e.match(t);return{nodes:[{type:"ident",value:null==i?e:e.substr(0,i.index)}],remainingInput:null==i?"":e.substr(i.index)}}})(),Im=(()=>{const t=/[\+\-]?(\d+[\.]\d+|\d+|[\.]\d+)([eE][\+\-]?\d+)?/,e=/^[a-z%]+/i,i=/^(m|mm|cm|rad|deg|[%])$/;return n=>{const s=n.match(t),r=null==s?"0":s[0],a=(n=null==r?n:n.slice(r.length)).match(e);let o=null!=a&&""!==a[0]?a[0]:null;const l=null==a?n:n.slice(o.length);return null==o||i.test(o)||(o=null),{nodes:[{type:"number",number:parseFloat(r)||0,unit:o}],remainingInput:l}}})(),Mm=(()=>{const t=/^[a-f0-9]*/i;return e=>{const i=(e=e.slice(1).trim()).match(t);return{nodes:null==i?[]:[{type:"hex",value:i[0]}],remainingInput:null==i?e:e.slice(i[0].length)}}})(),Tm=t=>{const e=[];for(t=t.slice(1).trim();t.length;){const i=Cm(t);if(e.push(i.nodes[0]),","===(t=i.remainingInput.trim())[0])t=t.slice(1).trim();else if(")"===t[0]){t=t.slice(1);break}}return{nodes:e,remainingInput:t}},Bm=Symbol("visitedTypes");class Rm{constructor(t){this[Bm]=t}walk(t,e){const i=t.slice();for(;i.length;){const t=i.shift();switch(this[Bm].indexOf(t.type)>-1&&e(t),t.type){case"expression":i.unshift(...t.terms);break;case"function":i.unshift(t.name,...t.arguments)}}}}const Dm=Object.freeze({type:"number",number:0,unit:null}),Lm=(t,e=0)=>{let{number:i,unit:n}=t;if(isFinite(i)){if("rad"===t.unit||null==t.unit)return t}else i=e,n="rad";return{type:"number",number:("deg"===n&&null!=i?i:0)*Math.PI/180,unit:"rad"}},Pm=(t,e=0)=>{let i,{number:n,unit:s}=t;if(isFinite(n)){if("m"===t.unit)return t}else n=e,s="m";switch(s){default:i=1;break;case"cm":i=.01;break;case"mm":i=.001}return{type:"number",number:i*n,unit:"m"}},Um=(()=>{const t=t=>t,e={rad:t,deg:Lm,m:t,mm:Pm,cm:Pm};return(t,i=Dm)=>{isFinite(t.number)||(t.number=i.number,t.unit=i.unit);const{unit:n}=t;if(null==n)return t;const s=e[n];return null==s?i:s(t)}})();
/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
var Fm,Nm,Om;const Qm=Symbol("evaluate"),km=Symbol("lastValue");class Gm{constructor(){this[Fm]=null}static evaluatableFor(t,e=Dm){if(t instanceof Gm)return t;if("number"===t.type)return"%"===t.unit?new Vm(t,e):t;switch(t.name.value){case"calc":return new Ym(t,e);case"env":return new qm(t)}return Dm}static evaluate(t){return t instanceof Gm?t.evaluate():t}static isConstant(t){return!(t instanceof Gm)||t.isConstant}static applyIntrinsics(t,e){const{basis:i,keywords:n}=e,{auto:s}=n;return i.map(((e,i)=>{const r=null==s[i]?e:s[i];let a=t[i]?t[i]:r;if("ident"===a.type){const t=a.value;t in n&&(a=n[t][i])}return null!=a&&"ident"!==a.type||(a=r),"%"===a.unit?Em(a.number/100*e.number,e.unit):(a=Um(a,e),a.unit!==e.unit?e:a)}))}get isConstant(){return!1}evaluate(){return this.isConstant&&null!=this[km]||(this[km]=this[Qm]()),this[km]}}Fm=km;const Hm=Symbol("percentage"),zm=Symbol("basis");class Vm extends Gm{constructor(t,e){super(),this[Hm]=t,this[zm]=e}get isConstant(){return!0}[Qm](){return Em(this[Hm].number/100*this[zm].number,this[zm].unit)}}const Wm=Symbol("identNode");class qm extends Gm{constructor(t){super(),this[Nm]=null;const e=t.arguments.length?t.arguments[0].terms[0]:null;null!=e&&"ident"===e.type&&(this[Wm]=e)}get isConstant(){return!1}[(Nm=Wm,Qm)](){if(null!=this[Wm]&&"window-scroll-y"===this[Wm].value){return{type:"number",number:window.pageYOffset/(Math.max(document.body.scrollHeight,document.body.offsetHeight,document.documentElement.clientHeight,document.documentElement.scrollHeight,document.documentElement.offsetHeight)-window.innerHeight)||0,unit:null}}return Dm}}const jm=/[\*\/]/,Xm=Symbol("evaluator");class Ym extends Gm{constructor(t,e=Dm){if(super(),this[Om]=null,1!==t.arguments.length)return;const i=t.arguments[0].terms.slice(),n=[];for(;i.length;){const t=i.shift();if(n.length>0){const i=n[n.length-1];if("operator"===i.type&&jm.test(i.value)){const i=n.pop(),s=n.pop();if(null==s)return;n.push(new Zm(i,Gm.evaluatableFor(s,e),Gm.evaluatableFor(t,e)));continue}}n.push("operator"===t.type?t:Gm.evaluatableFor(t,e))}for(;n.length>2;){const[t,i,s]=n.splice(0,3);if("operator"!==i.type)return;n.unshift(new Zm(i,Gm.evaluatableFor(t,e),Gm.evaluatableFor(s,e)))}1===n.length&&(this[Xm]=n[0])}get isConstant(){return null==this[Xm]||Gm.isConstant(this[Xm])}[(Om=Xm,Qm)](){return null!=this[Xm]?Gm.evaluate(this[Xm]):Dm}}const Km=Symbol("operator"),Jm=Symbol("left"),$m=Symbol("right");class Zm extends Gm{constructor(t,e,i){super(),this[Km]=t,this[Jm]=e,this[$m]=i}get isConstant(){return Gm.isConstant(this[Jm])&&Gm.isConstant(this[$m])}[Qm](){const t=Um(Gm.evaluate(this[Jm])),e=Um(Gm.evaluate(this[$m])),{number:i,unit:n}=t,{number:s,unit:r}=e;if(null!=r&&null!=n&&r!=n)return Dm;const a=n||r;let o;switch(this[Km].value){case"+":o=i+s;break;case"-":o=i-s;break;case"/":o=i/s;break;case"*":o=i*s;break;default:return Dm}return{type:"number",number:o,unit:a}}}const tg=Symbol("evaluatables"),eg=Symbol("intrinsics");class ig extends Gm{constructor(t,e){super(),this[eg]=e;const i=t[0],n=null!=i?i.terms:[];this[tg]=e.basis.map(((t,e)=>{const i=n[e];return null==i?{type:"ident",value:"auto"}:"ident"===i.type?i:Gm.evaluatableFor(i,t)}))}get isConstant(){for(const t of this[tg])if(!Gm.isConstant(t))return!1;return!0}[Qm](){const t=this[tg].map((t=>Gm.evaluate(t)));return Gm.applyIntrinsics(t,this[eg]).map((t=>t.number))}}
/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */var ng,sg,rg,ag;const og=Symbol("instances"),lg=Symbol("activateListener"),cg=Symbol("deactivateListener"),hg=Symbol("notifyInstances"),ug=Symbol("notify"),dg=Symbol("callback");class pg{static[hg](){for(const t of pg[og])t[ug]()}static[(ng=og,lg)](){window.addEventListener("scroll",this[hg],{passive:!0})}static[cg](){window.removeEventListener("scroll",this[hg])}constructor(t){this[dg]=t}observe(){0===pg[og].size&&pg[lg](),pg[og].add(this)}disconnect(){pg[og].delete(this),0===pg[og].size&&pg[cg]()}[ug](){this[dg]()}}pg[ng]=new Set;const Ag=Symbol("computeStyleCallback"),mg=Symbol("astWalker"),gg=Symbol("dependencies"),fg=Symbol("onScroll");class vg{constructor(t){this[sg]={},this[rg]=new Rm(["function"]),this[ag]=()=>{this[Ag]({relatedState:"window-scroll"})},this[Ag]=t}observeEffectsFor(t){const e={},i=this[gg];this[mg].walk(t,(t=>{const{name:n}=t,s=t.arguments[0].terms[0];if("env"===n.value&&null!=s&&"ident"===s.type&&"window-scroll-y"===s.value)if(null==e["window-scroll"]){const t="window-scroll"in i?i["window-scroll"]:new pg(this[fg]);t.observe(),delete i["window-scroll"],e["window-scroll"]=t}}));for(const t in i){i[t].disconnect()}this[gg]=e}dispose(){for(const t in this[gg]){this[gg][t].disconnect()}}}sg=gg,rg=mg,ag=fg;
/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
const bg=t=>{const e=t.observeEffects||!1,i=t.intrinsics instanceof Function?t.intrinsics:()=>t.intrinsics;return(n,s)=>{const r=n.updated,a=n.connectedCallback,o=n.disconnectedCallback,l=Symbol(`${s}StyleEffector`),c=Symbol(`${s}StyleEvaluator`),h=Symbol(`${s}UpdateEvaluator`),u=Symbol(`${s}EvaluateAndSync`);Object.defineProperties(n,{[l]:{value:null,writable:!0},[c]:{value:null,writable:!0},[h]:{value:function(){const t=Sm(this[s]);this[c]=new ig(t,i(this)),null==this[l]&&e&&(this[l]=new vg((()=>this[u]()))),null!=this[l]&&this[l].observeEffectsFor(t)}},[u]:{value:function(){if(null==this[c])return;const e=this[c].evaluate();this[t.updateHandler](e)}},updated:{value:function(t){t.has(s)&&(this[h](),this[u]()),r.call(this,t)}},connectedCallback:{value:function(){a.call(this),this.requestUpdate(s,this[s])}},disconnectedCallback:{value:function(){o.call(this),null!=this[l]&&(this[l].dispose(),this[l]=null)}}})}},yg=t=>t<.5?2*t*t:(4-2*t)*t-1,xg=(t,e,i=yg)=>n=>t+(e-t)*i(n),_g=t=>{const e=[],i=[];let n=t.initialValue;for(let s=0;s<t.keyframes.length;++s){const r=t.keyframes[s],{value:a,frames:o}=r,l=r.ease||yg,c=xg(n,a,l);e.push(c),i.push(o),n=a}return((t,e)=>{const i=e.map((n=0,t=>n+=t));var n;return e=>{e=Ku(e,0,1),e*=i[i.length-1];const n=i.findIndex((t=>t>=e)),s=n<1?0:i[n-1],r=i[n];return t[n]((e-s)/(r-s))}})(e,i)};
/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
var Eg=function(t,e,i,n){for(var s,r=arguments.length,a=r<3?e:null===n?n=Object.getOwnPropertyDescriptor(e,i):n,o=t.length-1;o>=0;o--)(s=t[o])&&(a=(r<3?s(a):r>3?s(e,i,a):s(e,i))||a);return r>3&&a&&Object.defineProperty(e,i,a),a};const Sg=_g({initialValue:0,keyframes:[{frames:5,value:-1},{frames:1,value:-1},{frames:8,value:1},{frames:1,value:1},{frames:5,value:0},{frames:18,value:0}]}),Cg=_g({initialValue:0,keyframes:[{frames:1,value:1},{frames:5,value:1},{frames:1,value:0},{frames:6,value:0}]}),wg="0deg 75deg 105%",Ig=["front","right","back","left"],Mg=["upper-","","lower-"],Tg="auto",Bg="basic",Rg="wiggle",Dg="none",Lg=()=>({basis:[Lm(Em(30,"deg"))],keywords:{auto:[null]}}),Pg=()=>({basis:[Lm(Em(12,"deg"))],keywords:{auto:[null]}}),Ug=(()=>{const t=Sm(wg)[0].terms,e=Um(t[0]),i=Um(t[1]);return t=>{const n=t[Dx].idealCameraDistance();return{basis:[e,i,Em(n,"m")],keywords:{auto:[null,null,Em(105,"%")]}}}})(),Fg=t=>{const e=2.2*t[Dx].boundingSphere.radius;return{basis:[Em(-1/0,"rad"),Em(0,"rad"),Em(e,"m")],keywords:{auto:[null,null,null]}}},Ng=t=>{const e=Ug(t),i=new ig([],e).evaluate()[2];return{basis:[Em(1/0,"rad"),Em(Math.PI,"rad"),Em(i,"m")],keywords:{auto:[null,null,null]}}},Og=t=>{const e=t[Dx].boundingBox.getCenter(new Ci);return{basis:[Em(e.x,"m"),Em(e.y,"m"),Em(e.z,"m")],keywords:{auto:[null,null,null]}}},Qg=Math.PI/2,kg=Math.PI/3,Gg=Qg/2,Hg=2*Math.PI,zg=Symbol("controls"),Vg=Symbol("panElement"),Wg=Symbol("promptElement"),qg=Symbol("promptAnimatedContainer"),jg=Symbol("fingerAnimatedContainers"),Xg=Symbol("deferInteractionPrompt"),Yg=Symbol("updateAria"),Kg=Symbol("a11y"),Jg=Symbol("updateA11y"),$g=Symbol("updateCameraForRadius"),Zg=Symbol("cancelPrompts"),tf=Symbol("onChange"),ef=Symbol("onPointerChange"),nf=Symbol("waitingToPromptUser"),sf=Symbol("userHasInteracted"),rf=Symbol("promptElementVisibleTime"),af=Symbol("lastPromptOffset"),of=Symbol("cancellationSource"),lf=Symbol("lastSpherical"),cf=Symbol("jumpCamera"),hf=Symbol("initialized"),uf=Symbol("maintainThetaPhi"),df=Symbol("syncCameraOrbit"),pf=Symbol("syncFieldOfView"),Af=Symbol("syncCameraTarget"),mf=Symbol("syncMinCameraOrbit"),gf=Symbol("syncMaxCameraOrbit"),ff=Symbol("syncMinFieldOfView"),vf=Symbol("syncMaxFieldOfView"),bf=new $e,yf=new Ci,xf=Object.freeze({minimumRadius:0,maximumRadius:1/0,minimumPolarAngle:0,maximumPolarAngle:Math.PI,minimumAzimuthalAngle:-1/0,maximumAzimuthalAngle:1/0,minimumFieldOfView:10,maximumFieldOfView:45,touchAction:"none"}),_f=Math.PI/8,Ef=.04,Sf={USER_INTERACTION:"user-interaction",NONE:"none",AUTOMATIC:"automatic"};class Cf extends ke{constructor(t,e,i){super(),this.camera=t,this.element=e,this.scene=i,this.orbitSensitivity=1,this.zoomSensitivity=1,this.panSensitivity=1,this.inputSensitivity=1,this.changeSource=Sf.NONE,this._interactionEnabled=!1,this._disableZoom=!1,this.isUserPointing=!1,this.enablePan=!0,this.enableTap=!0,this.panProjection=new Ze,this.panPerPixel=0,this.spherical=new hl,this.goalSpherical=new hl,this.thetaDamper=new vm,this.phiDamper=new vm,this.radiusDamper=new vm,this.logFov=Math.log(xf.maximumFieldOfView),this.goalLogFov=this.logFov,this.fovDamper=new vm,this.touchMode=null,this.pointers=[],this.startTime=0,this.startPointerPosition={clientX:0,clientY:0},this.lastSeparation=0,this.touchDecided=!1,this.onContext=t=>{if(this.enablePan)t.preventDefault();else for(const t of this.pointers)this.onPointerUp(new PointerEvent("pointercancel",Object.assign(Object.assign({},this.startPointerPosition),{pointerId:t.id})))},this.touchModeZoom=(t,e)=>{if(!this._disableZoom){const t=this.twoTouchDistance(this.pointers[0],this.pointers[1]),e=Ef*this.zoomSensitivity*(this.lastSeparation-t)*50/this.scene.height;this.lastSeparation=t,this.userAdjustOrbit(0,0,e)}this.panPerPixel>0&&this.movePan(t,e)},this.disableScroll=t=>{t.preventDefault()},this.touchModeRotate=(t,e)=>{const{touchAction:i}=this._options;if(!this.touchDecided&&"none"!==i){this.touchDecided=!0;const n=Math.abs(t),s=Math.abs(e);if(this.changeSource===Sf.USER_INTERACTION&&("pan-y"===i&&s>n||"pan-x"===i&&n>s))return void(this.touchMode=null);this.element.addEventListener("touchmove",this.disableScroll,{passive:!1})}this.handleSinglePointerMove(t,e)},this.onPointerDown=t=>{if(this.pointers.length>2)return;const{element:e}=this;0===this.pointers.length&&(e.addEventListener("pointermove",this.onPointerMove),e.addEventListener("pointerup",this.onPointerUp),this.touchMode=null,this.touchDecided=!1,this.startPointerPosition.clientX=t.clientX,this.startPointerPosition.clientY=t.clientY,this.startTime=performance.now());try{e.setPointerCapture(t.pointerId)}catch(t){}this.pointers.push({clientX:t.clientX,clientY:t.clientY,id:t.pointerId}),this.isUserPointing=!1,"touch"===t.pointerType?(this.changeSource=t.altKey?Sf.AUTOMATIC:Sf.USER_INTERACTION,this.onTouchChange(t)):(this.changeSource=Sf.USER_INTERACTION,this.onMouseDown(t)),this.changeSource===Sf.USER_INTERACTION&&this.dispatchEvent({type:"user-interaction"})},this.onPointerMove=t=>{const e=this.pointers.find((e=>e.id===t.pointerId));if(null==e)return;if("mouse"===t.pointerType&&0===t.buttons)return void this.onPointerUp(t);const i=this.pointers.length,n=(t.clientX-e.clientX)/i,s=(t.clientY-e.clientY)/i;0===n&&0===s||(e.clientX=t.clientX,e.clientY=t.clientY,"touch"===t.pointerType?(this.changeSource=t.altKey?Sf.AUTOMATIC:Sf.USER_INTERACTION,null!==this.touchMode&&this.touchMode(n,s)):(this.changeSource=Sf.USER_INTERACTION,this.panPerPixel>0?this.movePan(n,s):this.handleSinglePointerMove(n,s)))},this.onPointerUp=t=>{const{element:e}=this,i=this.pointers.findIndex((e=>e.id===t.pointerId));-1!==i&&this.pointers.splice(i,1),this.panPerPixel>0&&!t.altKey&&this.resetRadius(),0===this.pointers.length?(e.removeEventListener("pointermove",this.onPointerMove),e.removeEventListener("pointerup",this.onPointerUp),e.removeEventListener("touchmove",this.disableScroll),this.enablePan&&this.enableTap&&this.recenter(t)):null!==this.touchMode&&this.onTouchChange(t),this.scene.element[Vg].style.opacity=0,e.style.cursor="grab",this.panPerPixel=0,this.isUserPointing&&this.dispatchEvent({type:"pointer-change-end"})},this.onWheel=t=>{this.changeSource=Sf.USER_INTERACTION;const e=t.deltaY*(1==t.deltaMode?18:1)*Ef*this.zoomSensitivity/30;this.userAdjustOrbit(0,0,e),t.preventDefault(),this.dispatchEvent({type:"user-interaction"})},this.onKeyDown=t=>{const{changeSource:e}=this;this.changeSource=Sf.USER_INTERACTION;(t.shiftKey&&this.enablePan?this.panKeyCodeHandler(t):this.orbitZoomKeyCodeHandler(t))?(t.preventDefault(),this.dispatchEvent({type:"user-interaction"})):this.changeSource=e},this._options=Object.assign({},xf),this.setOrbit(0,Math.PI/2,1),this.setFieldOfView(100),this.jumpToGoal()}get interactionEnabled(){return this._interactionEnabled}enableInteraction(){if(!1===this._interactionEnabled){const{element:t}=this;t.addEventListener("pointerdown",this.onPointerDown),t.addEventListener("pointercancel",this.onPointerUp),this._disableZoom||t.addEventListener("wheel",this.onWheel),t.addEventListener("keydown",this.onKeyDown),t.addEventListener("touchmove",(()=>{}),{passive:!1}),t.addEventListener("contextmenu",this.onContext),this.element.style.cursor="grab",this._interactionEnabled=!0,this.updateTouchActionStyle()}}disableInteraction(){if(!0===this._interactionEnabled){const{element:t}=this;t.removeEventListener("pointerdown",this.onPointerDown),t.removeEventListener("pointermove",this.onPointerMove),t.removeEventListener("pointerup",this.onPointerUp),t.removeEventListener("pointercancel",this.onPointerUp),t.removeEventListener("wheel",this.onWheel),t.removeEventListener("keydown",this.onKeyDown),t.removeEventListener("contextmenu",this.onContext),t.style.cursor="",this.touchMode=null,this._interactionEnabled=!1,this.updateTouchActionStyle()}}get options(){return this._options}set disableZoom(t){this._disableZoom!=t&&(this._disableZoom=t,!0===t?this.element.removeEventListener("wheel",this.onWheel):this.element.addEventListener("wheel",this.onWheel),this.updateTouchActionStyle())}getCameraSpherical(t=new hl){return t.copy(this.spherical)}getFieldOfView(){return this.camera.fov}applyOptions(t){Object.assign(this._options,t),this.setOrbit(),this.setFieldOfView(Math.exp(this.goalLogFov))}updateNearFar(t,e){this.camera.far=0===e?2:e,this.camera.near=Math.max(t,this.camera.far/1e3),this.camera.updateProjectionMatrix()}updateAspect(t){this.camera.aspect=t,this.camera.updateProjectionMatrix()}setOrbit(t=this.goalSpherical.theta,e=this.goalSpherical.phi,i=this.goalSpherical.radius){const{minimumAzimuthalAngle:n,maximumAzimuthalAngle:s,minimumPolarAngle:r,maximumPolarAngle:a,minimumRadius:o,maximumRadius:l}=this._options,{theta:c,phi:h,radius:u}=this.goalSpherical,d=Ku(t,n,s);isFinite(n)||isFinite(s)||(this.spherical.theta=this.wrapAngle(this.spherical.theta-d)+d);const p=Ku(e,r,a),A=Ku(i,o,l);return(d!==c||p!==h||A!==u)&&(!!(isFinite(d)&&isFinite(p)&&isFinite(A))&&(this.goalSpherical.theta=d,this.goalSpherical.phi=p,this.goalSpherical.radius=A,this.goalSpherical.makeSafe(),!0))}setRadius(t){this.goalSpherical.radius=t,this.setOrbit()}setFieldOfView(t){const{minimumFieldOfView:e,maximumFieldOfView:i}=this._options;t=Ku(t,e,i),this.goalLogFov=Math.log(t)}setDamperDecayTime(t){this.thetaDamper.setDecayTime(t),this.phiDamper.setDecayTime(t),this.radiusDamper.setDecayTime(t),this.fovDamper.setDecayTime(t)}adjustOrbit(t,e,i){const{theta:n,phi:s,radius:r}=this.goalSpherical,{minimumRadius:a,maximumRadius:o,minimumFieldOfView:l,maximumFieldOfView:c}=this._options,h=this.spherical.theta-n,u=Math.PI-.001,d=n-Ku(t,-u-h,u-h),p=s-e,A=0===i?0:((i>0?o:a)-r)/(Math.log(i>0?c:l)-this.goalLogFov),m=r+i*(isFinite(A)?A:2*(o-a));if(this.setOrbit(d,p,m),0!==i){const t=this.goalLogFov+i;this.setFieldOfView(Math.exp(t))}}jumpToGoal(){this.update(0,1e4)}update(t,e){if(this.isStationary())return!1;const{maximumPolarAngle:i,maximumRadius:n}=this._options,s=this.spherical.theta-this.goalSpherical.theta;return Math.abs(s)>Math.PI&&!isFinite(this._options.minimumAzimuthalAngle)&&!isFinite(this._options.maximumAzimuthalAngle)&&(this.spherical.theta-=2*Math.sign(s)*Math.PI),this.spherical.theta=this.thetaDamper.update(this.spherical.theta,this.goalSpherical.theta,e,Math.PI),this.spherical.phi=this.phiDamper.update(this.spherical.phi,this.goalSpherical.phi,e,i),this.spherical.radius=this.radiusDamper.update(this.spherical.radius,this.goalSpherical.radius,e,n),this.logFov=this.fovDamper.update(this.logFov,this.goalLogFov,e,1),this.moveCamera(),!0}updateTouchActionStyle(){const{style:t}=this.element;if(this._interactionEnabled){const{touchAction:e}=this._options;this._disableZoom&&"none"!==e?t.touchAction="manipulation":t.touchAction=e}else t.touchAction=""}isStationary(){return this.goalSpherical.theta===this.spherical.theta&&this.goalSpherical.phi===this.spherical.phi&&this.goalSpherical.radius===this.spherical.radius&&this.goalLogFov===this.logFov}moveCamera(){this.spherical.makeSafe(),this.camera.position.setFromSpherical(this.spherical),this.camera.setRotationFromEuler(new dn(this.spherical.phi-Math.PI/2,this.spherical.theta,0,"YXZ")),this.camera.fov!==Math.exp(this.logFov)&&(this.camera.fov=Math.exp(this.logFov),this.camera.updateProjectionMatrix())}userAdjustOrbit(t,e,i){this.adjustOrbit(t*this.orbitSensitivity*this.inputSensitivity,e*this.orbitSensitivity*this.inputSensitivity,i*this.inputSensitivity)}wrapAngle(t){const e=(t+Math.PI)/(2*Math.PI);return 2*(e-Math.floor(e))*Math.PI-Math.PI}pixelLengthToSphericalAngle(t){return 2*Math.PI*t/this.scene.height}twoTouchDistance(t,e){const{clientX:i,clientY:n}=t,{clientX:s,clientY:r}=e,a=s-i,o=r-n;return Math.sqrt(a*a+o*o)}handleSinglePointerMove(t,e){const i=this.pixelLengthToSphericalAngle(t),n=this.pixelLengthToSphericalAngle(e);!1===this.isUserPointing&&(this.isUserPointing=!0,this.dispatchEvent({type:"pointer-change-start"})),this.userAdjustOrbit(i,n,0)}initializePan(){const{theta:t,phi:e}=this.spherical,i=t-this.scene.yaw;this.panPerPixel=.018*this.panSensitivity/this.scene.height,this.panProjection.set(-Math.cos(i),-Math.cos(e)*Math.sin(i),0,0,Math.sin(e),0,Math.sin(i),-Math.cos(e)*Math.cos(i),0)}movePan(t,e){const{scene:i}=this,n=yf.set(t,e,0).multiplyScalar(this.inputSensitivity),s=this.spherical.radius*Math.exp(this.logFov)*this.panPerPixel;n.multiplyScalar(s);const r=i.getTarget();r.add(n.applyMatrix3(this.panProjection)),i.boundingSphere.clampPoint(r,r),i.setTarget(r.x,r.y,r.z)}recenter(t){if(performance.now()>this.startTime+300||Math.abs(t.clientX-this.startPointerPosition.clientX)>2||Math.abs(t.clientY-this.startPointerPosition.clientY)>2)return;const{scene:e}=this,i=e.positionAndNormalFromPoint(e.getNDC(t.clientX,t.clientY));if(null==i){const{cameraTarget:t}=e.element;e.element.cameraTarget="",e.element.cameraTarget=t,this.userAdjustOrbit(0,0,1)}else e.target.worldToLocal(i.position),e.setTarget(i.position.x,i.position.y,i.position.z)}resetRadius(){const{scene:t}=this,e=t.positionAndNormalFromPoint(bf.set(0,0));if(null==e)return;t.target.worldToLocal(e.position);const i=t.getTarget(),{theta:n,phi:s}=this.spherical,r=n-t.yaw,a=yf.set(Math.sin(s)*Math.sin(r),Math.cos(s),Math.sin(s)*Math.cos(r)),o=a.dot(e.position.sub(i));i.add(a.multiplyScalar(o)),t.setTarget(i.x,i.y,i.z),this.setOrbit(void 0,void 0,this.goalSpherical.radius-o)}onTouchChange(t){if(1===this.pointers.length)this.touchMode=this.touchModeRotate;else{if(this._disableZoom)return this.touchMode=null,void this.element.removeEventListener("touchmove",this.disableScroll);this.touchMode=this.touchDecided&&null===this.touchMode?null:this.touchModeZoom,this.touchDecided=!0,this.element.addEventListener("touchmove",this.disableScroll,{passive:!1}),this.lastSeparation=this.twoTouchDistance(this.pointers[0],this.pointers[1]),this.enablePan&&null!=this.touchMode&&(this.initializePan(),t.altKey||(this.scene.element[Vg].style.opacity=1))}}onMouseDown(t){this.panPerPixel=0,this.enablePan&&(2===t.button||t.ctrlKey||t.metaKey||t.shiftKey)&&(this.initializePan(),this.scene.element[Vg].style.opacity=1),this.element.style.cursor="grabbing"}orbitZoomKeyCodeHandler(t){let e=!0;switch(t.key){case"PageUp":this.userAdjustOrbit(0,0,Ef*this.zoomSensitivity);break;case"PageDown":this.userAdjustOrbit(0,0,-.04*this.zoomSensitivity);break;case"ArrowUp":this.userAdjustOrbit(0,-_f,0);break;case"ArrowDown":this.userAdjustOrbit(0,_f,0);break;case"ArrowLeft":this.userAdjustOrbit(-_f,0,0);break;case"ArrowRight":this.userAdjustOrbit(_f,0,0);break;default:e=!1}return e}panKeyCodeHandler(t){this.initializePan();let e=!0;switch(t.key){case"ArrowUp":this.movePan(0,-10);break;case"ArrowDown":this.movePan(0,10);break;case"ArrowLeft":this.movePan(-10,0);break;case"ArrowRight":this.movePan(10,0);break;default:e=!1}return e}}const wf='<svg xmlns="http://www.w3.org/2000/svg" width="24px" height="24px" viewBox="0 0 24 24" fill="#e8eaed">\n   <path d="M6.4,19L5,17.6L10.6,12L5,6.4L6.4,5L12,10.6L17.6,5L19,6.4L13.4,12L19,17.6L17.6,19L12,13.4L6.4,19Z"/>\n</svg>',If='<svg xmlns="http://www.w3.org/2000/svg" width="24px" height="24px" viewBox="0 0 24 24" fill="#e8eaed">\n   <path d="M7,17V9H5V7H9V17H7ZM11,17V15H13V17H11ZM16,17V9H14V7H18V17H16ZM11,13V11H13V13H11Z"/>\n</svg>',Mf='<svg xmlns="http://www.w3.org/2000/svg" width="24px" height="24px" viewBox="0 0 24 24" fill="#E1E2E8">\n   <defs>\n       <clipPath id="clip0">\n           <path d="M0,0h24v24h-24z"/>\n       </clipPath>\n   </defs>\n   <g clip-path="url(#clip0)">\n       <path d="M12,22C10.75,22 9.575,21.767 8.475,21.3C7.392,20.817 6.442,20.175 5.625,19.375C4.825,18.558 4.183,17.608 3.7,16.525C3.233,15.425 3,14.25 3,13H5C5,14.95 5.675,16.608 7.025,17.975C8.392,19.325 10.05,20 12,20C13.95,20 15.6,19.325 16.95,17.975C18.317,16.608 19,14.95 19,13C19,11.05 18.317,9.4 16.95,8.05C15.6,6.683 13.95,6 12,6H11.85L13.4,7.55L12,9L8,5L12,1L13.4,2.45L11.85,4H12C13.25,4 14.417,4.242 15.5,4.725C16.6,5.192 17.55,5.833 18.35,6.65C19.167,7.45 19.808,8.4 20.275,9.5C20.758,10.583 21,11.75 21,13C21,14.25 20.758,15.425 20.275,16.525C19.808,17.608 19.167,18.558 18.35,19.375C17.55,20.175 16.6,20.817 15.5,21.3C14.417,21.767 13.25,22 12,22Z"/>\n   </g>\n</svg>',Tf={width:.16,height:.07,cornerRadius:.03,opacity:1,color:0,minDistance:.5,maxDistance:10,baseScale:1,distanceScaleFactor:.3},Bf=.05,Rf=.01,Df=.07,Lf=128,Pf=dt;class Uf extends Tn{constructor(){super(),this.isActualSize=!1,this.preRenderIcons(),this.createPanel(),this.createButtons(),this.opacityDamper=new vm,this.goalOpacity=Tf.opacity}createPanel(){const t=this.createPanelShape(),e=new Ya(t),i=new $n({color:Tf.color,opacity:Tf.opacity,transparent:!0});this.panelMesh=new Ms(e,i),this.panelMesh.name="MenuPanel",this.add(this.panelMesh)}createButtons(){this.exitButton=this.createButton("close"),this.exitButton.name="ExitButton",this.exitButton.position.set(Df/2,0,Rf),this.add(this.exitButton),this.toggleButton=this.createButton("view-real-size"),this.toggleButton.name="ToggleButton",this.toggleButton.position.set(-.035,0,Rf),this.add(this.toggleButton)}createPanelShape(){const t=new ba,{width:e,height:i,cornerRadius:n}=Tf;return t.moveTo(-.08+n,-.035),t.lineTo(e/2-n,-.035),t.quadraticCurveTo(e/2,-.035,e/2,-.035+n),t.lineTo(e/2,i/2-n),t.quadraticCurveTo(e/2,i/2,e/2-n,i/2),t.lineTo(-.08+n,i/2),t.quadraticCurveTo(-.08,i/2,-.08,i/2-n),t.lineTo(-.08,-.035+n),t.quadraticCurveTo(-.08,-.035,-.08+n,-.035),t}preRenderIcons(){[{key:"close",svg:wf},{key:"view-real-size",svg:If},{key:"replay",svg:Mf}].forEach((({key:t,svg:e})=>{Uf.iconTextures.has(t)||this.createTextureFromSvg(e,t)}))}createTextureFromSvg(t,e){const i=document.createElement("canvas");i.width=Lf,i.height=Lf;const n=i.getContext("2d"),s=new Image,r=new Blob([t],{type:"image/svg+xml"}),a=URL.createObjectURL(r);s.onload=()=>{n.drawImage(s,0,0,Lf,Lf);const t=new ta(i);t.needsUpdate=!0,t.minFilter=Pf,Uf.iconTextures.set(e,t),URL.revokeObjectURL(a)},s.src=a}createButton(t){const e=new $n({transparent:!0}),i=new Xa(Bf,Bf),n=new Ms(i,e),s=Uf.iconTextures.get(t);if(s)n.material.map=s,n.material.needsUpdate=!0;else{this.createTextureFromSvg("close"===t?wf:"view-real-size"===t?If:Mf,t);const e=()=>{const i=Uf.iconTextures.get(t);i?(n.material.map=i,n.material.needsUpdate=!0):setTimeout(e,10)};e()}return n}exitButtonControllerIntersection(t,e){return t.hitFromController(e,this.exitButton)}scaleModeButtonControllerIntersection(t,e){return t.hitFromController(e,this.toggleButton)}handleScaleToggle(t,e,i,n){if(!t)return null;this.isActualSize=!this.isActualSize;const s=this.isActualSize?"replay":"view-real-size";this.updateScaleModeButtonLabel(s);const r=this.isActualSize?1:e;return Math.max(i,Math.min(n,r))}updateScaleModeButtonLabel(t){const e=Uf.iconTextures.get(t);e&&(this.toggleButton.material.map=e,this.toggleButton.material.needsUpdate=!0)}updatePosition(t,e){if(!e)return;const i=new Ci;e.getWorldPosition(i);const n=e.getSize(),s=Math.min(n.x,n.z),r=Math.max(.5,Math.min(2,s/1)),a=-.2*r,o=.9*r,l=(new Ci).copy(t.position).sub(i);l.y=0,l.normalize();const c=(new Ci).copy(i).add(new Ci(0,a,0)).add(l.multiplyScalar(o));this.position.copy(c);const h=t.position.distanceTo(c),u=Math.max(Tf.minDistance,Math.min(Tf.maxDistance,h)),d=Tf.baseScale+(u-Tf.minDistance)*Tf.distanceScaleFactor;this.scale.set(d,d,d),this.lookAt(t.position)}set show(t){this.goalOpacity=t?Tf.opacity:0}updateOpacity(t){const e=this.panelMesh.material.opacity,i=this.opacityDamper.update(e,this.goalOpacity,t,1);this.traverse((t=>{if(t instanceof Ms){const e=t.material;e.transparent&&(e.opacity=i)}})),this.visible=i>0}dispose(){var t;this.children.forEach((t=>{if(t instanceof Ms){t.geometry&&t.geometry.dispose();(Array.isArray(t.material)?t.material:[t.material]).forEach((t=>{t&&("map"in t&&t.map instanceof ta&&t.map.dispose(),t.dispose())}))}})),null===(t=this.parent)||void 0===t||t.remove(this)}}Uf.iconTextures=new Map;
/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
const Ff=.8,Nf=150,Of=new Ci(0,1,0),Qf=.01,kf=.001,Gf="not-presenting",Hf="session-started",zf="object-placed",Vf="failed",Wf="tracking",qf=new Ci,jf=new Si,Xf=new en,Yf=new Ci,Kf=new ks(45,1,.1,100),Jf=(new gs).setFromPoints([new Ci(0,0,0),new Ci(0,0,-1)]),$f="screen-space",Zf="world-space";class tv extends ke{isWorldSpaceReady(){return this.xrMode===Zf&&this.worldSpaceInitialPlacementDone}setVerticalOffset(t){const e=t-this._manualYOffset;if(this._manualYOffset=t,this.isPresenting&&!this.modelAnchor&&this.worldSpaceInitialPlacementDone){const t=this.presentedScene;this.goalPosition.y+=e,t.pivot.position.y+=e}}constructor(t){super(),this.renderer=t,this.currentSession=null,this.placementMode="floor",this.anchorOffset=null,this.isInteractionEnabled=!0,this.placementBox=null,this.menuPanel=null,this.lastTick=null,this.turntableRotation=null,this.oldShadowIntensity=null,this.frame=null,this.initialHitSource=null,this.transientHitTestSource=null,this.inputSource=null,this._presentedScene=null,this.resolveCleanup=null,this.exitWebXRButtonContainer=null,this.overlay=null,this.xrLight=null,this.xrMode=null,this.xrController1=null,this.xrController2=null,this.selectedXRController=null,this.parsedAnchorOffset=null,this.tracking=!0,this.frames=0,this.initialized=!1,this.oldTarget=new Ci,this.placementComplete=!1,this.isTranslating=!1,this.isRotating=!1,this.isTwoHandInteraction=!1,this.lastDragPosition=new Ci,this.deltaRotation=new Si,this.scaleLine=new Nr(Jf),this.firstRatio=0,this.lastAngle=0,this.goalPosition=new Ci,this.goalYaw=0,this.goalScale=1,this.xDamper=new vm,this.yDamper=new vm,this.zDamper=new vm,this.yawDamper=new vm,this.pitchDamper=new vm,this.rollDamper=new vm,this.scaleDamper=new vm,this.wasTwoFingering=!1,this.worldSpaceInitialPlacementDone=!1,this.initialModelScale=1,this.minScale=1,this.maxScale=1,this.modelAnchor=void 0,this._anchorYOffset=0,this._manualYOffset=0,this.onExitWebXRButtonContainerClick=()=>this.stopPresenting(),this.onControllerSelectStart=t=>{var e,i,n;const s=this.presentedScene,r=t.target,a=this.menuPanel;if(null!=this.menuPanel.exitButtonControllerIntersection(s,r))return null===(e=this.menuPanel)||void 0===e||e.dispose(),void this.stopPresenting();if(null!=this.menuPanel.scaleModeButtonControllerIntersection(s,r)){const t=this.menuPanel.handleScaleToggle(this.worldSpaceInitialPlacementDone,this.initialModelScale,this.minScale,this.maxScale);return void(null!==t&&(this.goalScale=t))}a&&(a.show=!1);const o=this.placementBox.controllerIntersection(s,r);if(null!=o){const t=(new Mi).setFromObject(s.pivot).min.y+.2;if(o.point.y<=t)null!=this.selectedXRController?(this.selectedXRController.userData.line.visible=!1,s.canScale&&this.isWorldSpaceReady()&&(this.isTwoHandInteraction=!0,this.firstRatio=this.controllerSeparation()/s.pivot.scale.x,this.scaleLine.visible=!0)):r.attach(s.pivot),this.selectedXRController=r,s.setShadowIntensity(.01);else if(r==this.xrController1?this.xrController1.userData.isSelected=!0:r==this.xrController2&&(this.xrController2.userData.isSelected=!0),(null===(i=this.xrController1)||void 0===i?void 0:i.userData.isSelected)&&(null===(n=this.xrController2)||void 0===n?void 0:n.userData.isSelected))s.canScale&&this.isWorldSpaceReady()&&(this.isTwoHandInteraction=!0,this.firstRatio=this.controllerSeparation()/s.pivot.scale.x,this.scaleLine.visible=!0);else{const t=r===this.xrController1?this.xrController2:this.xrController1;r.userData.initialX=r.position.x,t.userData.turning=!1,r.userData.turning=!0,r.userData.line.visible=!1}}},this.onControllerSelectEnd=t=>{const e=t.target;if(e.userData.turning=!1,e.userData.line.visible=!0,this.isTwoHandInteraction=!1,this.scaleLine.visible=!1,e==this.xrController1?this.xrController1.userData.isSelected=!1:e==this.xrController2&&(this.xrController2.userData.isSelected=!1),null!=this.selectedXRController&&this.selectedXRController!=e)return;const i=this.presentedScene;i.attach(i.pivot),this.selectedXRController=null,this.goalYaw=Math.atan2(i.pivot.matrix.elements[8],i.pivot.matrix.elements[10]),this.goalPosition.x=i.pivot.position.x,this.goalPosition.z=i.pivot.position.z,this.isWorldSpaceReady()&&(this.goalPosition.y=i.pivot.position.y);this.menuPanel.show=!0},this.onUpdateScene=()=>{null!=this.placementBox&&this.isPresenting&&(this.placementBox.updateFromModelChanges(),this.placementBox.setScreenSpaceMode(this.xrMode===$f)),this.xrMode!==$f&&(this.menuPanel&&(this.menuPanel.dispose(),this.menuPanel=null),this.menuPanel=new Uf,this.presentedScene.add(this.menuPanel),this.menuPanel.updatePosition(this.presentedScene.getCamera(),this.placementBox))},this.onSelectStart=t=>{if(!this.isInteractionEnabled)return;const e=this.transientHitTestSource;if(null==e)return;const i=this.frame.getHitTestResultsForTransientInput(e),n=this.presentedScene,s=this.placementBox;if(1===i.length){this.inputSource=t.inputSource;const{axes:e}=this.inputSource.gamepad,i=s.getHit(this.presentedScene,e[0],e[1]);s.show=!0,null!=i?(this.isTranslating=!0,this.lastDragPosition.copy(i)):!1===this.placeOnWall&&(this.isRotating=!0,this.lastAngle=1.5*e[0])}else if(2===i.length){s.show=!0,this.isTwoHandInteraction=!0;const{separation:t,angle:e}=this.fingerPolar(i);return this.lastAngle=e,0===this.firstRatio&&(this.firstRatio=t/n.pivot.scale.x),void(n.canScale&&this.setScale(t))}},this.onSelectEnd=()=>{this.isTranslating=!1,this.isRotating=!1,this.isTwoHandInteraction=!1,this.inputSource=null,this.goalPosition.y+=this.placementBox.offsetHeight*this.presentedScene.scale.x,this.placementBox.show=!1},this._stableHits=[],this._stableNeeded=10,this._stableEpsilon=.02,this.threeRenderer=t.threeRenderer,this.threeRenderer.xr.enabled=!0}async resolveARSession(){var t,e;ju();const i=await navigator.xr.requestSession("immersive-ar",{requiredFeatures:["hit-test","local-floor"],optionalFeatures:["anchors","dom-overlay","light-estimation","plane-detection"],domOverlay:this.overlay?{root:this.overlay}:void 0});this.threeRenderer.xr.setReferenceSpaceType("local-floor");const n=await i.requestReferenceSpace("viewer"),s=await i.requestReferenceSpace("local-floor");return this._viewerSpace=n,this._worldSpace=s,null===(e=(t=s).addEventListener)||void 0===e||e.call(t,"reset",(()=>{})),await this.threeRenderer.xr.setSession(i),this.threeRenderer.xr.cameraAutoUpdate=!1,i}get presentedScene(){return this._presentedScene}get currentGoalPosition(){return this.goalPosition}get currentPosition(){return this.presentedScene?this.presentedScene.pivot.position:this.goalPosition}get isObjectPlaced(){return this.placementComplete}updateAnchor(t){var e;if(t){const i=t.split(" ").map(Number);if(3===i.length&&i.every((t=>!isNaN(t)))){const t=new Ci(i[0],i[1],i[2]);this.goalPosition.copy(t),this.parsedAnchorOffset=t,this.placementComplete||(this.placementComplete=!0,this.worldSpaceInitialPlacementDone=!0,this.placementBox&&(this.placementBox.show=!1),null===(e=this.presentedScene)||void 0===e||e.setShadowIntensity(Ff),this.dispatchEvent({type:"status",status:zf}))}else console.warn(`Invalid dynamic ar-anchor value: "${t}"`)}}async supportsPresentation(){try{return ju(),await navigator.xr.isSessionSupported("immersive-ar")}catch(t){return console.warn("Request to present in WebXR denied:"),console.warn(t),console.warn("Falling back to next ar-mode"),!1}}async present(t,e=!1){if(this.isPresenting&&console.warn("Cannot present while a model is already presenting"),this.parsedAnchorOffset=null,this.anchorOffset){const t=this.anchorOffset.split(" ").map(Number);3===t.length&&t.every((t=>!isNaN(t)))?this.parsedAnchorOffset=new Ci(t[0],t[1],t[2]):console.warn(`Invalid ar-anchor value: "${this.anchorOffset}"`)}let i=new Promise(((t,e)=>{requestAnimationFrame((()=>t()))}));t.setHotspotsVisibility(!1),t.queueRender(),await i,this._presentedScene=t,this.overlay=t.element.shadowRoot.querySelector("div.default"),!0===e&&(this.xrLight=new fm(this.threeRenderer),this.xrLight.addEventListener("estimationstart",(()=>{if(!this.isPresenting||null==this.xrLight)return;const t=this.presentedScene;t.add(this.xrLight),t.environment=this.xrLight.environment})));const n=await this.resolveARSession();n.addEventListener("end",(()=>{this.postSessionCleanup()}),{once:!0});const s=t.element.shadowRoot.querySelector(".slot.exit-webxr-ar-button");s.classList.add("enabled"),s.addEventListener("click",this.onExitWebXRButtonContainerClick),this.exitWebXRButtonContainer=s;const r=await n.requestReferenceSpace("viewer"),a=n.interactionMode;let o;if(this.xrMode="screen-space"===a?$f:Zf,this.tracking=!0,this.frames=0,this.initialized=!1,this.turntableRotation=t.yaw,this.goalYaw=t.yaw,this.goalScale=1,t.setBackground(null),this.oldShadowIntensity=t.shadowIntensity,t.setShadowIntensity(.01),this.oldTarget.copy(t.getTarget()),t.element.addEventListener("load",this.onUpdateScene),this.placeOnWall||this.placeOnCeiling)if(this.placeOnWall)o=void 0;else{const t=20*Math.PI/180;o=new XRRay(new DOMPoint(0,0,0),{x:0,y:Math.sin(t),z:-Math.cos(t)})}else{const t=20*Math.PI/180;o=new XRRay(new DOMPoint(0,0,0),{x:0,y:-Math.sin(t),z:-Math.cos(t)})}n.requestHitTestSource({space:r,offsetRay:o}).then((t=>{this.initialHitSource=t})),this.xrMode!==$f&&(this.setupXRControllers(),this.xDamper.setDecayTime(Nf),this.yDamper.setDecayTime(Nf),this.zDamper.setDecayTime(Nf),this.yawDamper.setDecayTime(Nf),this.pitchDamper.setDecayTime(Nf),this.rollDamper.setDecayTime(Nf),this.scaleDamper.setDecayTime(Nf)),this.currentSession=n,this.placementBox=new _m(t,this.placeOnWall?"back":this.placeOnCeiling?"top":"bottom"),this.placementBox&&this.placementBox.setScreenSpaceMode(this.xrMode===$f),this.placementComplete=!1,this.xrMode!==$f&&(this.menuPanel=new Uf,t.add(this.menuPanel),this.menuPanel.updatePosition(t.getCamera(),this.placementBox)),this.lastTick=performance.now(),this.dispatchEvent({type:"status",status:Hf})}setupXRControllerLine(t){if(!t.userData.line){const e=new Nr(Jf);e.name="line",e.scale.z=5,t.userData.turning=!1,t.userData.line=e,t.add(e)}}setupController(t){this.setupXRControllerLine(t),t.addEventListener("selectstart",this.onControllerSelectStart),t.addEventListener("selectend",this.onControllerSelectEnd)}setupXRControllers(){this.xrController1=this.threeRenderer.xr.getController(0),this.xrController2=this.threeRenderer.xr.getController(1),this.setupController(this.xrController1),this.setupController(this.xrController2),this.scaleLine.name="scale line",this.scaleLine.visible=!1,this.xrController1.add(this.scaleLine);const t=this.presentedScene;t.add(this.xrController1),t.add(this.xrController2)}hover(t){if(this.xrMode===$f||this.selectedXRController==t)return!1;const e=this.presentedScene,i=this.placementBox.controllerIntersection(e,t);return t.userData.line.scale.z=null==i?5:i.distance,null!=i}controllerSeparation(){return this.xrController1.position.distanceTo(this.xrController2.position)}async stopPresenting(){if(!this.isPresenting)return;const t=new Promise((t=>{this.resolveCleanup=t}));try{await this.currentSession.end(),await t}catch(t){console.warn("Error while trying to end WebXR AR session"),console.warn(t),this.postSessionCleanup()}}get isPresenting(){return null!=this.presentedScene}get target(){return this.oldTarget}get placeOnCeiling(){return"ceiling"===this.placementMode}get placeOnWall(){return"wall"===this.placementMode}updateTarget(){const t=this.presentedScene;if(null!=t){const e=t.getTarget();this.oldTarget.copy(e),this.placeOnWall?e.z=t.boundingBox.min.z:this.placeOnCeiling?e.y=t.boundingBox.max.y:e.y=t.boundingBox.min.y,t.setTarget(e.x,e.y,e.z)}}cleanupXRController(t){t.userData.turning=!1,t.userData.line.visible=!0,t.removeEventListener("selectstart",this.onControllerSelectStart),t.removeEventListener("selectend",this.onControllerSelectEnd),t.removeFromParent()}postSessionCleanup(){const t=this.currentSession;null!=t&&(t.removeEventListener("selectstart",this.onSelectStart),t.removeEventListener("selectend",this.onSelectEnd),this.currentSession=null);const e=this.presentedScene;if(this._presentedScene=null,null!=e){const{element:t}=e;null!=this.xrLight&&(e.remove(this.xrLight),this.xrLight.dispose(),this.xrLight=null),null!=this.menuPanel&&(this.menuPanel.dispose(),this.menuPanel=null),e.add(e.pivot),e.pivot.quaternion.set(0,0,0,1),e.pivot.position.set(0,0,0),e.pivot.scale.set(1,1,1),e.setShadowOffset(0);const i=this.turntableRotation;null!=i&&(e.yaw=i);const n=this.oldShadowIntensity;null!=n&&e.setShadowIntensity(n),e.setEnvironmentAndSkybox(t[Zu],t[td]);const s=this.oldTarget;e.setTarget(s.x,s.y,s.z),e.xrCamera=null,e.element.removeEventListener("load",this.onUpdateScene),e.orientHotspots(0);const{width:r,height:a}=t.getBoundingClientRect();e.setSize(r,a),requestAnimationFrame((()=>{e.element.dispatchEvent(new CustomEvent("camera-change",{detail:{source:Sf.NONE}}))}))}this.renderer.height=0;const i=this.exitWebXRButtonContainer;null!=i&&(i.classList.remove("enabled"),i.removeEventListener("click",this.onExitWebXRButtonContainerClick),this.exitWebXRButtonContainer=null);const n=this.transientHitTestSource;null!=n&&(n.cancel(),this.transientHitTestSource=null);const s=this.initialHitSource;null!=s&&(s.cancel(),this.initialHitSource=null),null!=this.placementBox&&(this.placementBox.dispose(),this.placementBox=null),this.xrMode!==$f&&(null!=this.xrController1&&(this.cleanupXRController(this.xrController1),this.xrController1=null),null!=this.xrController2&&(this.cleanupXRController(this.xrController2),this.xrController2=null),this.selectedXRController=null,this.scaleLine.visible=!1),this.isTranslating=!1,this.isRotating=!1,this.isTwoHandInteraction=!1,this.lastTick=null,this.turntableRotation=null,this.oldShadowIntensity=null,this.frame=null,this.inputSource=null,this.overlay=null,this.worldSpaceInitialPlacementDone=!1,this.anchorOffset=null,this.parsedAnchorOffset=null,null!=this.resolveCleanup&&this.resolveCleanup(),this.dispatchEvent({type:"status",status:Gf})}updateView(t){const e=this.presentedScene,i=this.threeRenderer.xr;i.updateCamera(Kf),e.xrCamera=i.getCamera();const{elements:n}=e.getCamera().matrixWorld;if(e.orientHotspots(Math.atan2(n[1],n[5])),this.initialized||(this.placeInitially(),this.initialized=!0),t.requestViewportScale&&t.recommendedViewportScale){const e=t.recommendedViewportScale;t.requestViewportScale(Math.max(e,.25))}const s=i.getBaseLayer();if(null!=s){const e=s instanceof XRWebGLLayer?s.getViewport(t):i.getBinding().getViewSubImage(s,t).viewport;this.threeRenderer.setViewport(e.x,e.y,e.width,e.height)}}placeInitially(){var t;const e=this.presentedScene,{pivot:i,element:n}=e,{position:s}=i,r=e.getCamera();if(null!=this.parsedAnchorOffset){if(s.copy(this.parsedAnchorOffset),this.goalPosition.copy(this.parsedAnchorOffset),this.placementComplete=!0,this.worldSpaceInitialPlacementDone=!0,e.setHotspotsVisibility(!0),e.visible=!0,e.setShadowIntensity(Ff),this.placementBox&&(this.placementBox.show=!1),this.dispatchEvent({type:"status",status:zf}),this.xrMode===$f){const{session:t}=this.frame;t.addEventListener("selectstart",this.onSelectStart),t.addEventListener("selectend",this.onSelectEnd),t.requestHitTestSourceForTransientInput({profile:"generic-touchscreen"}).then((t=>{this.transientHitTestSource=t}))}else this.enableWorldSpaceUserInteraction();return}const{width:a,height:o}=this.overlay.getBoundingClientRect();e.setSize(a,o),r.projectionMatrixInverse.copy(r.projectionMatrix).invert();const{theta:l}=n.getCameraOrbit(),c=r.getWorldDirection(qf);if(e.yaw=Math.atan2(-c.x,-c.z)-l,this.goalYaw=e.yaw,!this.placeOnCeiling||this.isViewPointingUp()){if(this.xrMode===Zf){const{position:t,scale:n}=this.calculateWorldSpaceOptimalPlacement(e,r);this.goalPosition.copy(t),this.goalScale=n,this.initialModelScale=n,s.copy(t),i.scale.set(n,n,n),this.worldSpaceInitialPlacementDone=!0,this.calculateWorldSpaceScaleLimits(e),this.enableWorldSpaceUserInteraction()}else{const t=Math.max(1,2*e.boundingSphere.radius);s.copy(r.position).add(c.multiplyScalar(t)),this.updateTarget();const i=e.getTarget();s.add(i).sub(this.oldTarget),this.goalPosition.copy(s)}if(this.placementComplete=!0,e.visible=!0,e.setHotspotsVisibility(!0),this.placementBox&&(this.placementBox.show=!1),null===(t=this.presentedScene)||void 0===t||t.setShadowIntensity(Ff),this.dispatchEvent({type:"status",status:zf}),this.xrMode===$f){const{session:t}=this.frame;t.addEventListener("selectstart",this.onSelectStart),t.addEventListener("selectend",this.onSelectEnd),t.requestHitTestSourceForTransientInput({profile:"generic-touchscreen"}).then((t=>{this.transientHitTestSource=t}))}}else if(e.visible=!1,e.setHotspotsVisibility(!0),this.xrMode===$f){const{session:t}=this.frame;t.addEventListener("selectstart",this.onSelectStart),t.addEventListener("selectend",this.onSelectEnd),t.requestHitTestSourceForTransientInput({profile:"generic-touchscreen"}).then((t=>{this.transientHitTestSource=t}))}}checkForDeferredCeilingPlacement(){if(!this.placeOnCeiling||!this.presentedScene||this.presentedScene.visible)return;const t=this.xrMode===Zf&&!this.worldSpaceInitialPlacementDone,e=this.xrMode===$f;(t||e)&&this.isViewPointingUp()&&this.performDeferredPlacement()}performDeferredPlacement(){const t=this.presentedScene;if(this.xrMode===Zf){const e=t.getCamera(),{position:i,scale:n}=this.calculateWorldSpaceOptimalPlacement(t,e);this.goalPosition.copy(i),this.goalScale=n,this.initialModelScale=n,t.pivot.position.copy(i),t.pivot.scale.set(n,n,n),this.worldSpaceInitialPlacementDone=!0,this.calculateWorldSpaceScaleLimits(t),this.enableWorldSpaceUserInteraction()}else{const e=t.getCamera(),i=e.getWorldDirection(new Ci),n=Math.max(1,2*t.boundingSphere.radius);t.pivot.position.copy(e.position).add(i.multiplyScalar(n)),this.updateTarget();const s=t.getTarget();t.pivot.position.add(s).sub(this.oldTarget),this.goalPosition.copy(t.pivot.position);const{session:r}=this.frame;r.addEventListener("selectstart",this.onSelectStart),r.addEventListener("selectend",this.onSelectEnd),r.requestHitTestSourceForTransientInput({profile:"generic-touchscreen"}).then((t=>{this.transientHitTestSource=t}))}this.placementComplete=!0,t.visible=!0,t.setHotspotsVisibility(!0),t.setShadowIntensity(Ff),this.dispatchEvent({type:"status",status:zf})}getTouchLocation(){const{axes:t}=this.inputSource.gamepad;let e=this.placementBox.getExpandedHit(this.presentedScene,t[0],t[1]);return null!=e&&(qf.copy(e).sub(this.presentedScene.getCamera().position),qf.length()>10)?null:e}getHitPoint(t){const e=this._worldSpace,i=t.getPose(e);if(null==i)return null;const n=Xf.fromArray(i.transform.matrix);!0===this.placeOnWall&&(this.goalYaw=Math.atan2(n.elements[4],n.elements[6]));const s=n.elements[5];return this.placeOnWall?s<-.8?null:Yf.setFromMatrixPosition(n):this.placeOnCeiling?s<-.5?Yf.setFromMatrixPosition(n):null:s>.75?Yf.setFromMatrixPosition(n):null}async moveToAnchor(t){if(null!=this.parsedAnchorOffset||this.placementComplete||null!=this.modelAnchor)return;const e=this._worldSpace;if(this.placeOnCeiling){if(await this._tryCeilingPlaneAnchor(t))return this.placementComplete=!0,this.placementBox&&(this.placementBox.show=!1),this.presentedScene.setShadowIntensity(Ff),void this.dispatchEvent({type:"status",status:zf})}const i=this.initialHitSource;if(!i)return;const n=t.getHitTestResults(i);if(0===n.length)return;const s=n[0],r=this.getHitPoint(s);if(!r)return;const a=this.presentedScene.getCamera().getWorldPosition(new Ci);if(!(r.distanceTo(a)<1.5)&&this._isStableHit(r)){try{const i=await this._createAnchorFromHit(t,s,e),n=this.presentedScene.pivot.scale.x||this.goalScale||1;if(this._anchorYOffset=this._computeAttachYOffset(n),i){this.modelAnchor=i;const t=new Ci(r.x,r.y+this._anchorYOffset+this._manualYOffset,r.z);this.presentedScene.pivot.position.copy(t),this.goalPosition.copy(t)}else{const t=new Ci(r.x,r.y+this._anchorYOffset,r.z);this.goalPosition.copy(t),this.presentedScene.pivot.position.copy(t)}}catch(t){const e=this.presentedScene.pivot.scale.x||this.goalScale||1;this._anchorYOffset=this._computeAttachYOffset(e);const i=new Ci(r.x,r.y+this._anchorYOffset,r.z);this.goalPosition.copy(i),this.presentedScene.pivot.position.copy(i)}this.placementComplete=!0,this.placementBox&&(this.placementBox.show=!1),this.presentedScene.setShadowIntensity(Ff),this.dispatchEvent({type:"status",status:zf})}}isViewPointingUp(t=15){const e=this.presentedScene.getCamera(),i=e.isArrayCamera&&Array.isArray(e.cameras)?e.cameras[0]:e;if(!i||"function"!=typeof i.updateMatrixWorld)return!1;i.updateMatrixWorld(!0);return-i.matrixWorld.elements[9]>=Math.sin(t*Math.PI/180)}fingerPolar(t){const e=t[0].inputSource.gamepad.axes,i=t[1].inputSource.gamepad.axes,n=i[0]-e[0],s=i[1]-e[1],r=Math.atan2(s,n);let a=this.lastAngle-r;return a>Math.PI?a-=2*Math.PI:a<-Math.PI&&(a+=2*Math.PI),{separation:Math.sqrt(n*n+s*s),deltaYaw:a,angle:r}}setScale(t){let e=t/this.firstRatio;e=Math.abs(e-1)<.2?1:e,this.isWorldSpaceReady()&&(e=Math.max(this.minScale,Math.min(this.maxScale,e))),this.goalScale=e}processInput(t){const e=this.transientHitTestSource;if(null==e)return;const i=t.getHitTestResultsForTransientInput(e),n=this.presentedScene,s=n.pivot.scale.x;if(2===i.length){if(!this.wasTwoFingering){const{separation:t,angle:e}=this.fingerPolar(i);return this.firstRatio=t/s,this.lastAngle=e,this.wasTwoFingering=!0,void(this.isTwoHandInteraction=!0)}const{separation:t,deltaYaw:e,angle:r}=this.fingerPolar(i);return this.goalYaw+=e,this.lastAngle=r,n.canScale&&this.setScale(t),void(this.isTwoHandInteraction=!0)}if(this.wasTwoFingering&&(this.wasTwoFingering=!1,this.isTwoHandInteraction=!1,this.firstRatio=0),this.isTranslating||this.isTwoHandInteraction||this.isRotating)if(this.isRotating){const t=1.5*this.inputSource.gamepad.axes[0];this.goalYaw+=t-this.lastAngle,this.lastAngle=t}else this.isTranslating&&i.forEach((t=>{if(t.inputSource!==this.inputSource)return;let e=null;if(t.results.length>0&&(e=this.getHitPoint(t.results[0])),null==e&&(e=this.getTouchLocation()),null!=e){if(this.goalPosition.sub(this.lastDragPosition),this.isWorldSpaceReady())console.log("[processInput] Setting goalPosition.y to hit.y:",e.y),this.goalPosition.add(e);else if(!1===this.placeOnWall){const t=e.y-this.lastDragPosition.y;if(t<0){this.placementBox.offsetHeight=t/s,this.presentedScene.setShadowOffset(t);const i=qf.copy(n.getCamera().position),r=-t/(i.y-e.y);i.multiplyScalar(r),e.multiplyScalar(1-r).add(i)}this.goalPosition.add(e)}else this.goalPosition.add(e);this.lastDragPosition.copy(e)}}))}applyXRControllerRotation(t,e){if(!t.userData.turning)return;const i=.3*(t.position.x-t.userData.initialX);this.deltaRotation.setFromAxisAngle(Of,i),e.quaternion.multiplyQuaternions(this.deltaRotation,e.quaternion)}handleScalingInXR(t,e){if(this.xrMode===Zf&&!this.worldSpaceInitialPlacementDone)return;if(this.xrController1&&this.xrController2&&this.isTwoHandInteraction){const t=this.controllerSeparation();this.setScale(t),this.scaleLine.scale.z=-t,this.scaleLine.lookAt(this.xrController2.position)}const i=t.pivot.scale.x;if(this.goalScale!==i){const n=this.scaleDamper.update(i,this.goalScale,e,1);t.pivot.scale.set(n,n,n)}}updatePivotPosition(t,e){if(null!=this.modelAnchor)return Sf.NONE;const{pivot:i}=t,n=this.placementBox,s=t.boundingSphere.radius,r=this.goalPosition,a=i.position;let o=Sf.NONE;if(!r.equals(a)){o=Sf.USER_INTERACTION;let{x:i,y:l,z:c}=a;if(i=this.xDamper.update(i,r.x,e,s),l=this.yDamper.update(l,r.y,e,s),c=this.zDamper.update(c,r.z,e,s),a.set(i,l,c),this.xrMode===$f&&!this.isTranslating){const e=r.y-l;this.placementComplete&&!1===this.placeOnWall?(n.offsetHeight=e/t.pivot.scale.x,t.setShadowOffset(e)):0===e&&(this.placementComplete=!0,n.show=!1,t.setShadowIntensity(Ff))}this.xrMode!==$f&&r.equals(a)&&t.setShadowIntensity(Ff),this.isWorldSpaceReady()&&t.setShadowIntensity(Ff)}if(this.xrMode===Zf&&!this.worldSpaceInitialPlacementDone&&this.goalScale!==i.scale.x){const t=this.scaleDamper.update(i.scale.x,this.goalScale,e,1);i.scale.set(t,t,t)}return t.updateTarget(e),o}updateYaw(t,e){jf.setFromAxisAngle(qf.set(0,1,0),this.goalYaw);const i=t.pivot.quaternion.angleTo(jf),n=i-this.yawDamper.update(i,0,e,Math.PI);t.pivot.quaternion.rotateTowards(jf,n)}updateMenuPanel(t,e,i){this.menuPanel&&(this.menuPanel.updateOpacity(i),this.menuPanel.updatePosition(t.getCamera(),e))}applyXRInputToScene(t){const e=this.presentedScene,i=e.pivot,n=this.placementBox;if(this.updatePlacementBoxOpacity(n,t),this.updateTwoHandInteractionState(),this.applyXRControllerRotations(i),this.handleScalingInXR(e,t),i.parent!==e)return void this.updateMenuPanel(e,n,t);const s=this.updatePivotPosition(e,t);this.updateYaw(e,t),this.dispatchCameraChangeEvent(e,s),this.updateMenuPanel(e,n,t)}updatePlacementBoxOpacity(t,e){const i=this.presentedScene.getCamera();t.update(e,i.position);const n=this.hover(this.xrController1),s=this.hover(this.xrController2),r=(n||s)&&!this.isTwoHandInteraction;t.setInteractionState(this.isTranslating||this.isRotating,r)}updateTwoHandInteractionState(){var t,e;const i=(null===(t=this.xrController1)||void 0===t?void 0:t.userData.isSelected)&&(null===(e=this.xrController2)||void 0===e?void 0:e.userData.isSelected);this.isTwoHandInteraction=!!i}applyXRControllerRotations(t){this.isTwoHandInteraction||(this.xrController1&&this.applyXRControllerRotation(this.xrController1,t),this.xrController2&&this.applyXRControllerRotation(this.xrController2,t))}dispatchCameraChangeEvent(t,e){t.element.dispatchEvent(new CustomEvent("camera-change",{detail:{source:e}}))}updateXRControllerHover(){const t=this.hover(this.xrController1),e=this.hover(this.xrController2),i=(t||e)&&!this.isTwoHandInteraction;this.placementBox&&(this.placementBox.setInteractionState(this.isTranslating||this.isRotating,i),this.placementBox.show=i)}enableWorldSpaceUserInteraction(){this.placementBox&&(this.placementBox.show=!0),this.presentedScene&&this.presentedScene.setShadowIntensity(Ff)}handleFirstView(t,e){this.xrMode!==Zf||this.modelAnchor||this.moveToAnchor(t),this.processInput(t);const i=e-this.lastTick;this.applyXRInputToScene(i),this.renderer.preRender(this.presentedScene,e,i),this.lastTick=e,this.presentedScene.renderShadow(this.threeRenderer)}onWebXRFrame(t,e){this.xrMode!==$f&&this.updateXRControllerHover(),this.frame=e,++this.frames;const i=this._worldSpace,n=e.getViewerPose(i);if(null==n)return!0===this.tracking&&this.frames>30&&(this.tracking=!1,this.dispatchEvent({type:"tracking",status:"not-tracking"})),void this.threeRenderer.clear();if(!1===this.tracking&&(this.tracking=!0,this.dispatchEvent({type:"tracking",status:"tracking"})),n.emulatedPosition)return void this.threeRenderer.clear();const s=this.presentedScene;if(!s||!s.element.loaded)return void this.threeRenderer.clear();let r=!0;for(const a of n.views)this.updateView(a),r&&(this.checkForDeferredCeilingPlacement(),this.modelAnchor?this._applyAnchorPoseWithOffset(e,i):this.handleFirstView(e,t),r=!1),this.threeRenderer.render(s,s.getCamera())}calculateWorldSpaceOptimalPlacement(t,e){const i=t.boundingBox,n={x:(i.max.x-i.min.x)/2,y:(i.max.y-i.min.y)/2,z:(i.max.z-i.min.z)/2},s=.15,r=Math.max(1.65,2*Math.max(n.x,n.z)+s),a=15*Math.PI/180,o=new Ci(0,-r*Math.sin(a),-r*Math.cos(a)),l=e.matrixWorld,c=o.clone().applyMatrix4(l),h=Math.max(n.x,n.z)+s,u=n.y,d=.3*r,p=.3*r/Math.max(u,Qf),A=d/Math.max(h,Qf),m=Math.min(p,A),g=(this.placeOnCeiling?1:-1)*(m*n.y);return{position:c.clone().add(new Ci(0,g+this._manualYOffset,0)),scale:m}}calculateWorldSpaceScaleLimits(t){const e=t.size,i=Math.max(e.x,e.y,e.z),n=Math.max(Math.min(e.x,e.y,e.z),kf),s=Qf/Math.max(i,kf),r=70/Math.max(n,kf);this.minScale=Math.min(s,r,this.goalScale),this.maxScale=Math.max(s,r,this.goalScale)}_isStableHit(t){if(this._stableHits.push(t.clone()),this._stableHits.length>this._stableNeeded&&this._stableHits.shift(),this._stableHits.length<this._stableNeeded)return!1;const e=this._stableHits[0];for(let t=1;t<this._stableHits.length;t++)if(this._stableHits[t].distanceTo(e)>this._stableEpsilon)return!1;return!0}async _createAnchorFromHit(t,e,i){const n=e.getPose(i);if(n)return t.createAnchor?await t.createAnchor(n.transform,i):e.createAnchor?await e.createAnchor(n.transform):void 0}async _tryCeilingPlaneAnchor(t){var e,i;const n=null===(e=t.worldInformation)||void 0===e?void 0:e.detectedPlanes;if(!n||!n.size)return;const s=this._worldSpace,r=this.presentedScene.getCamera().getWorldPosition(new Ci);for(const e of n){if("horizontal"!==e.orientation)continue;const n=t.getPose(e.planeSpace,s);if(!n)continue;const a=(new en).fromArray(n.transform.matrix),o=(new Ci).setFromMatrixPosition(a);if(o.y<=r.y+.5)continue;const l=e.semanticLabel||(null===(i=e.semanticLabels)||void 0===i?void 0:i[0]);if(l&&!/ceiling/i.test(l))continue;const c=new XRRigidTransform({x:0,y:0,z:0});let h;if(h=t.createAnchor?await t.createAnchor(c,e.planeSpace):void 0,h){this.modelAnchor=h;const t=this.presentedScene.pivot.scale.x||this.goalScale||1;this._anchorYOffset=this._computeAttachYOffset(t);const e=new Ci(o.x,o.y+this._anchorYOffset,o.z);return this.presentedScene.pivot.position.copy(e),this.goalPosition.copy(e),h}}}_computeAttachYOffset(t){const e=this.presentedScene.boundingBox;return this.placeOnCeiling?-e.max.y*t:this.placeOnWall?0:-e.min.y*t}_applyAnchorPoseWithOffset(t,e){if(!this.modelAnchor)return;const i=this._presentedScene,n=t.getPose(this.modelAnchor.anchorSpace,e);if(!n)return;const s=(new en).fromArray(n.transform.matrix),r=(new Ci).setFromMatrixPosition(s),a=i.pivot.scale.x||this.goalScale||1;0===this._anchorYOffset&&(this._anchorYOffset=this._computeAttachYOffset(a));const o=r.y+this._anchorYOffset+this._manualYOffset;i.pivot.position.set(r.x,o,r.z),this.goalPosition.copy(i.pivot.position)}}function ev(t){const e=new Map,i=new Map,n=t.clone();return iv(t,n,(function(t,n){e.set(n,t),i.set(t,n)})),n.traverse((function(t){if(!t.isSkinnedMesh)return;const n=t,s=e.get(t),r=s.skeleton.bones;n.skeleton=s.skeleton.clone(),n.bindMatrix.copy(s.bindMatrix),n.skeleton.bones=r.map((function(t){return i.get(t)})),n.bind(n.skeleton,n.bindMatrix)})),n}function iv(t,e,i){i(t,e);for(let n=0;n<t.children.length;n++)iv(t.children[n],e.children[n],i)}
/* @license
 * Copyright 2020 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */const nv=Symbol("prepared"),sv=Symbol("prepare"),rv=Symbol("preparedGLTF"),av=Symbol("clone");class ov{static prepare(t){if(null==t.scene)throw new Error("Model does not have a scene");if(t[nv])return t;const e=this[sv](t);return e[nv]=!0,e}static[sv](t){const{scene:e}=t,i=[e];return Object.assign(Object.assign({},t),{scene:e,scenes:i})}get parser(){return this[rv].parser}get animations(){return this[rv].animations}get scene(){return this[rv].scene}get scenes(){return this[rv].scenes}get cameras(){return this[rv].cameras}get asset(){return this[rv].asset}get userData(){return this[rv].userData}constructor(t){this[rv]=t}clone(){return new(0,this.constructor)(this[av]())}dispose(){this.scenes.forEach((t=>{t.traverse((t=>{const e=t;if(!e.material)return;(Array.isArray(e.material)?e.material:[e.material]).forEach((t=>{for(const e in t){const i=t[e];if(i instanceof vi){const t=i.source.data;null!=t.close&&t.close(),i.dispose()}}t.dispose()})),e.geometry.dispose()}))}))}[av](){const t=this[rv],e=ev(this.scene);lv(e,this.scene);const i=[e],n=t.userData?Object.assign({},t.userData):{};return Object.assign(Object.assign({},t),{scene:e,scenes:i,userData:n})}}const lv=(t,e)=>{cv(t,e,((t,e)=>{void 0!==e.userData.variantMaterials&&(t.userData.variantMaterials=new Map(e.userData.variantMaterials)),void 0!==e.userData.variantData&&(t.userData.variantData=e.userData.variantData),void 0!==e.userData.originalMaterial&&(t.userData.originalMaterial=e.userData.originalMaterial)}))},cv=(t,e,i)=>{i(t,e);for(let n=0;n<t.children.length;n++)cv(t.children[n],e.children[n],i)},hv=Symbol("threeGLTF"),uv=Symbol("gltf"),dv=Symbol("gltfElementMap"),pv=Symbol("threeObjectMap"),Av=Symbol("parallelTraverseThreeScene"),mv=Symbol("correlateOriginalThreeGLTF"),gv=Symbol("correlateCloneThreeGLTF");class fv{static from(t,e){return null!=e?this[gv](t,e):this[mv](t)}static[mv](t){const e=t.parser.json,i=t.parser.associations,n=new Map,s={name:"Default"},r={index:-1};for(const t of i.keys())t instanceof Jn&&null==i.get(t)&&(r.index<0&&(null==e.materials&&(e.materials=[]),r.index=e.materials.length,e.materials.push(s)),t.name=s.name,i.set(t,{materials:r.index}));for(const[t,s]of i){s&&(t.userData=t.userData||{},t.userData.associations=s);for(const i in s)if(null!=i&&"primitives"!==i){const r=i,a=(e[r]||[])[s[r]];if(null==a)continue;let o=n.get(a);null==o&&(o=new Set,n.set(a,o)),o.add(t)}}return new fv(t,e,i,n)}static[gv](t,e){const i=e.threeGLTF,n=e.gltf,s=JSON.parse(JSON.stringify(n)),r=new Map,a=new Map;for(let n=0;n<i.scenes.length;n++)this[Av](i.scenes[n],t.scenes[n],((t,i)=>{const n=e.threeObjectMap.get(t);if(null!=n)for(const t in n)if(null!=t&&"primitives"!==t){const e=t,o=n[e],l=s[e][o],c=r.get(i)||{};c[e]=o,r.set(i,c);const h=a.get(l)||new Set;h.add(i),a.set(l,h)}}));return new fv(t,s,r,a)}static[Av](t,e,i){const n=(t,e)=>{if(i(t,e),t.isObject3D){const s=t,r=e;if(s.material)if(Array.isArray(s.material))for(let t=0;t<s.material.length;++t)i(s.material[t],r.material[t]);else i(s.material,r.material);for(let i=0;i<t.children.length;++i)n(t.children[i],e.children[i])}};n(t,e)}get threeGLTF(){return this[hv]}get gltf(){return this[uv]}get gltfElementMap(){return this[dv]}get threeObjectMap(){return this[pv]}constructor(t,e,i,n){this[hv]=t,this[uv]=e,this[dv]=n,this[pv]=i}}
/* @license
 * Copyright 2020 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */const vv=Symbol("correlatedSceneGraph");class bv extends ov{static[sv](t){const e=super[sv](t);null==e[vv]&&(e[vv]=fv.from(e));const{scene:i}=e,n=new qi(void 0,1/0);return i.traverse((t=>{t.renderOrder=1e3,t.frustumCulled=!1,t.name||(t.name=t.uuid);const i=t;if(i.material){const{geometry:t}=i;i.castShadow=!0,i.isSkinnedMesh&&(t.boundingSphere=n,t.boundingBox=null);const s=i.material;if(!0===s.isMeshBasicMaterial&&(s.toneMapped=!1),s.shadowSide=0,s.aoMap){const{gltf:i,threeObjectMap:n}=e[vv],r=n.get(s);if(null!=i.materials&&null!=r&&null!=r.materials){const e=i.materials[r.materials];e.occlusionTexture&&0===e.occlusionTexture.texCoord&&null!=t.attributes.uv&&t.setAttribute("uv2",t.attributes.uv)}}}})),e}get correlatedSceneGraph(){return this[rv][vv]}[av](){const t=super[av](),e=new Map;return t.scene.traverse((t=>{const i=t;if(i.material){const t=i.material;if(null!=t){if(e.has(t.uuid))return void(i.material=e.get(t.uuid));i.material=t.clone(),e.set(t.uuid,i.material)}}const n=t;void 0!==n.target&&n.add(n.target)})),t[vv]=fv.from(t,this.correlatedSceneGraph),t}}const yv=(t,e,i)=>{let n;switch(t){case mt:n=new Uint8ClampedArray(e*i*4);break;case _t:n=new Uint16Array(e*i*4);break;case yt:n=new Uint32Array(e*i*4);break;case gt:n=new Int8Array(e*i*4);break;case ft:n=new Int16Array(e*i*4);break;case bt:n=new Int32Array(e*i*4);break;case xt:n=new Float32Array(e*i*4);break;default:throw new Error("Unsupported data type")}return n};let xv;class _v{constructor(t){var e,i,n,s,r,a,o,l,c,h,u,d,p,A,m,g;this._rendererIsDisposable=!1,this._supportsReadPixels=!0,this.render=()=>{this._renderer.setRenderTarget(this._renderTarget);try{this._renderer.render(this._scene,this._camera)}catch(t){throw this._renderer.setRenderTarget(null),t}this._renderer.setRenderTarget(null)},this._width=t.width,this._height=t.height,this._type=t.type,this._colorSpace=t.colorSpace;const f={format:It,depthBuffer:!1,stencilBuffer:!1,type:this._type,colorSpace:this._colorSpace,anisotropy:void 0!==(null===(e=t.renderTargetOptions)||void 0===e?void 0:e.anisotropy)?null===(i=t.renderTargetOptions)||void 0===i?void 0:i.anisotropy:1,generateMipmaps:void 0!==(null===(n=t.renderTargetOptions)||void 0===n?void 0:n.generateMipmaps)&&(null===(s=t.renderTargetOptions)||void 0===s?void 0:s.generateMipmaps),magFilter:void 0!==(null===(r=t.renderTargetOptions)||void 0===r?void 0:r.magFilter)?null===(a=t.renderTargetOptions)||void 0===a?void 0:a.magFilter:dt,minFilter:void 0!==(null===(o=t.renderTargetOptions)||void 0===o?void 0:o.minFilter)?null===(l=t.renderTargetOptions)||void 0===l?void 0:l.minFilter:dt,samples:void 0!==(null===(c=t.renderTargetOptions)||void 0===c?void 0:c.samples)?null===(h=t.renderTargetOptions)||void 0===h?void 0:h.samples:void 0,wrapS:void 0!==(null===(u=t.renderTargetOptions)||void 0===u?void 0:u.wrapS)?null===(d=t.renderTargetOptions)||void 0===d?void 0:d.wrapS:ot,wrapT:void 0!==(null===(p=t.renderTargetOptions)||void 0===p?void 0:p.wrapT)?null===(A=t.renderTargetOptions)||void 0===A?void 0:A.wrapT:ot};if(this._material=t.material,t.renderer?this._renderer=t.renderer:(this._renderer=_v.instantiateRenderer(),this._rendererIsDisposable=!0),this._scene=new Xs,this._camera=new Ho,this._camera.position.set(0,0,10),this._camera.left=-.5,this._camera.right=.5,this._camera.top=.5,this._camera.bottom=-.5,this._camera.updateProjectionMatrix(),!((t,e,i,n)=>{if(void 0!==xv)return xv;const s=new xi(1,1,n);e.setRenderTarget(s);const r=new Ms(new Xa,new $n({color:16777215}));e.render(r,i),e.setRenderTarget(null);const a=yv(t,s.width,s.height);return e.readRenderTargetPixels(s,0,0,s.width,s.height,a),s.dispose(),r.geometry.dispose(),r.material.dispose(),xv=0!==a[0],xv})(this._type,this._renderer,this._camera,f)){let t;if(this._type===_t)t=this._renderer.extensions.has("EXT_color_buffer_float")?xt:void 0;void 0!==t?(console.warn(`This browser does not support reading pixels from ${this._type} RenderTargets, switching to 1015`),this._type=t):(this._supportsReadPixels=!1,console.warn("This browser dos not support toArray or toDataTexture, calls to those methods will result in an error thrown"))}this._quad=new Ms(new Xa,this._material),this._quad.geometry.computeBoundingBox(),this._scene.add(this._quad),this._renderTarget=new xi(this.width,this.height,f),this._renderTarget.texture.mapping=void 0!==(null===(m=t.renderTargetOptions)||void 0===m?void 0:m.mapping)?null===(g=t.renderTargetOptions)||void 0===g?void 0:g.mapping:et}static instantiateRenderer(){const t=new Xh;return t.setSize(128,128),t}toArray(){if(!this._supportsReadPixels)throw new Error("Can't read pixels in this browser");const t=yv(this._type,this._width,this._height);return this._renderer.readRenderTargetPixels(this._renderTarget,0,0,this._width,this._height,t),t}toDataTexture(t){const e=new cr(this.toArray(),this.width,this.height,It,this._type,(null==t?void 0:t.mapping)||et,(null==t?void 0:t.wrapS)||ot,(null==t?void 0:t.wrapT)||ot,(null==t?void 0:t.magFilter)||dt,(null==t?void 0:t.minFilter)||dt,(null==t?void 0:t.anisotropy)||1,Se);return e.generateMipmaps=void 0!==(null==t?void 0:t.generateMipmaps)&&(null==t?void 0:t.generateMipmaps),e}disposeOnDemandRenderer(){this._renderer.setRenderTarget(null),this._rendererIsDisposable&&(this._renderer.dispose(),this._renderer.forceContextLoss())}dispose(t){this.disposeOnDemandRenderer(),t&&this.renderTarget.dispose(),this.material instanceof Us&&Object.values(this.material.uniforms).forEach((t=>{t.value instanceof vi&&t.value.dispose()})),Object.values(this.material).forEach((t=>{t instanceof vi&&t.dispose()})),this.material.dispose(),this._quad.geometry.dispose()}get width(){return this._width}set width(t){this._width=t,this._renderTarget.setSize(this._width,this._height)}get height(){return this._height}set height(t){this._height=t,this._renderTarget.setSize(this._width,this._height)}get renderer(){return this._renderer}get renderTarget(){return this._renderTarget}set renderTarget(t){this._renderTarget=t,this._width=t.width,this._height=t.height}get material(){return this._material}get type(){return this._type}get colorSpace(){return this._colorSpace}}class Ev extends Us{constructor({gamma:t,offsetHdr:e,offsetSdr:i,gainMapMin:n,gainMapMax:s,maxDisplayBoost:r,hdrCapacityMin:a,hdrCapacityMax:o,sdr:l,gainMap:c}){super({name:"GainMapDecoderMaterial",vertexShader:"\nvarying vec2 vUv;\n\nvoid main() {\n  vUv = uv;\n  gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);\n}\n",fragmentShader:"\n// min half float value\n#define HALF_FLOAT_MIN vec3( -65504, -65504, -65504 )\n// max half float value\n#define HALF_FLOAT_MAX vec3( 65504, 65504, 65504 )\n\nuniform sampler2D sdr;\nuniform sampler2D gainMap;\nuniform vec3 gamma;\nuniform vec3 offsetHdr;\nuniform vec3 offsetSdr;\nuniform vec3 gainMapMin;\nuniform vec3 gainMapMax;\nuniform float weightFactor;\n\nvarying vec2 vUv;\n\nvoid main() {\n  vec3 rgb = texture2D( sdr, vUv ).rgb;\n  vec3 recovery = texture2D( gainMap, vUv ).rgb;\n  vec3 logRecovery = pow( recovery, gamma );\n  vec3 logBoost = gainMapMin * ( 1.0 - logRecovery ) + gainMapMax * logRecovery;\n  vec3 hdrColor = (rgb + offsetSdr) * exp2( logBoost * weightFactor ) - offsetHdr;\n  vec3 clampedHdrColor = max( HALF_FLOAT_MIN, min( HALF_FLOAT_MAX, hdrColor ));\n  gl_FragColor = vec4( clampedHdrColor , 1.0 );\n}\n",uniforms:{sdr:{value:l},gainMap:{value:c},gamma:{value:new Ci(1/t[0],1/t[1],1/t[2])},offsetHdr:{value:(new Ci).fromArray(e)},offsetSdr:{value:(new Ci).fromArray(i)},gainMapMin:{value:(new Ci).fromArray(n)},gainMapMax:{value:(new Ci).fromArray(s)},weightFactor:{value:(Math.log2(r)-a)/(o-a)}},blending:0,depthTest:!1,depthWrite:!1}),this._maxDisplayBoost=r,this._hdrCapacityMin=a,this._hdrCapacityMax=o,this.needsUpdate=!0,this.uniformsNeedUpdate=!0}get sdr(){return this.uniforms.sdr.value}set sdr(t){this.uniforms.sdr.value=t}get gainMap(){return this.uniforms.gainMap.value}set gainMap(t){this.uniforms.gainMap.value=t}get offsetHdr(){return this.uniforms.offsetHdr.value.toArray()}set offsetHdr(t){this.uniforms.offsetHdr.value.fromArray(t)}get offsetSdr(){return this.uniforms.offsetSdr.value.toArray()}set offsetSdr(t){this.uniforms.offsetSdr.value.fromArray(t)}get gainMapMin(){return this.uniforms.gainMapMin.value.toArray()}set gainMapMin(t){this.uniforms.gainMapMin.value.fromArray(t)}get gainMapMax(){return this.uniforms.gainMapMax.value.toArray()}set gainMapMax(t){this.uniforms.gainMapMax.value.fromArray(t)}get gamma(){const t=this.uniforms.gamma.value;return[1/t.x,1/t.y,1/t.z]}set gamma(t){const e=this.uniforms.gamma.value;e.x=1/t[0],e.y=1/t[1],e.z=1/t[2]}get hdrCapacityMin(){return this._hdrCapacityMin}set hdrCapacityMin(t){this._hdrCapacityMin=t,this.calculateWeight()}get hdrCapacityMax(){return this._hdrCapacityMax}set hdrCapacityMax(t){this._hdrCapacityMax=t,this.calculateWeight()}get maxDisplayBoost(){return this._maxDisplayBoost}set maxDisplayBoost(t){this._maxDisplayBoost=Math.max(1,Math.min(65504,t)),this.calculateWeight()}calculateWeight(){const t=(Math.log2(this._maxDisplayBoost)-this._hdrCapacityMin)/(this._hdrCapacityMax-this._hdrCapacityMin);this.uniforms.weightFactor.value=Math.max(0,Math.min(1,t))}}class Sv extends Error{}class Cv extends Error{}const wv=(t,e,i)=>{const n=new RegExp(`${e}="([^"]*)"`,"i").exec(t);if(n)return n[1];const s=new RegExp(`<${e}[^>]*>([\\s\\S]*?)</${e}>`,"i").exec(t);if(s){const t=s[1].match(/<rdf:li>([^<]*)<\/rdf:li>/g);return t&&3===t.length?t.map((t=>t.replace(/<\/?rdf:li>/g,""))):s[1].trim()}if(void 0!==i)return i;throw new Error(`Can't find ${e} in gainmap metadata`)};class Iv{constructor(t){this.options={debug:!(!t||void 0===t.debug)&&t.debug,extractFII:!t||void 0===t.extractFII||t.extractFII,extractNonFII:!t||void 0===t.extractNonFII||t.extractNonFII}}extract(t){return new Promise(((e,i)=>{const n=this.options.debug,s=new DataView(t.buffer);if(65496!==s.getUint16(0))return void i(new Error("Not a valid jpeg"));const r=s.byteLength;let a,o=2,l=0;for(;o<r;){if(++l>250)return void i(new Error(`Found no marker after ${l} loops 😵`));if(255!==s.getUint8(o))return void i(new Error(`Not a valid marker at offset 0x${o.toString(16)}, found: 0x${s.getUint8(o).toString(16)}`));if(a=s.getUint8(o+1),n&&console.log(`Marker: ${a.toString(16)}`),226===a){n&&console.log("Found APP2 marker (0xffe2)");const t=o+4;if(1297106432===s.getUint32(t)){const n=t+4;let r;if(18761===s.getUint16(n))r=!1;else{if(19789!==s.getUint16(n))return void i(new Error("No valid endianness marker found in TIFF header"));r=!0}if(42!==s.getUint16(n+2,!r))return void i(new Error("Not valid TIFF data! (no 0x002A marker)"));const a=s.getUint32(n+4,!r);if(a<8)return void i(new Error("Not valid TIFF data! (First offset less than 8)"));const o=n+a,l=s.getUint16(o,!r),c=o+2;let h=0;for(let t=c;t<c+12*l;t+=12)45057===s.getUint16(t,!r)&&(h=s.getUint32(t+8,!r));const u=o+2+12*l+4,d=[];for(let t=u;t<u+16*h;t+=16){const e={MPType:s.getUint32(t,!r),size:s.getUint32(t+4,!r),dataOffset:s.getUint32(t+8,!r),dependantImages:s.getUint32(t+12,!r),start:-1,end:-1,isFII:!1};e.dataOffset?(e.start=n+e.dataOffset,e.isFII=!1):(e.start=0,e.isFII=!0),e.end=e.start+e.size,d.push(e)}if(this.options.extractNonFII&&d.length){const t=new Blob([s]),i=[];for(const e of d){if(e.isFII&&!this.options.extractFII)continue;const n=t.slice(e.start,e.end+1,"image/jpeg");i.push(n)}e(i)}}}o+=2+s.getUint16(o+2)}}))}}const Mv=async t=>{const e=(t=>{let e;e="undefined"!=typeof TextDecoder?(new TextDecoder).decode(t):t.toString();let i=e.indexOf("<x:xmpmeta");for(;-1!==i;){const t=e.indexOf("x:xmpmeta>",i),n=e.slice(i,t+10);try{const t=wv(n,"hdrgm:GainMapMin","0"),e=wv(n,"hdrgm:GainMapMax"),i=wv(n,"hdrgm:Gamma","1"),s=wv(n,"hdrgm:OffsetSDR","0.015625"),r=wv(n,"hdrgm:OffsetHDR","0.015625"),a=/hdrgm:HDRCapacityMin="([^"]*)"/.exec(n),o=a?a[1]:"0",l=/hdrgm:HDRCapacityMax="([^"]*)"/.exec(n);if(!l)throw new Error("Incomplete gainmap metadata");const c=l[1];return{gainMapMin:Array.isArray(t)?t.map((t=>parseFloat(t))):[parseFloat(t),parseFloat(t),parseFloat(t)],gainMapMax:Array.isArray(e)?e.map((t=>parseFloat(t))):[parseFloat(e),parseFloat(e),parseFloat(e)],gamma:Array.isArray(i)?i.map((t=>parseFloat(t))):[parseFloat(i),parseFloat(i),parseFloat(i)],offsetSdr:Array.isArray(s)?s.map((t=>parseFloat(t))):[parseFloat(s),parseFloat(s),parseFloat(s)],offsetHdr:Array.isArray(r)?r.map((t=>parseFloat(t))):[parseFloat(r),parseFloat(r),parseFloat(r)],hdrCapacityMin:parseFloat(o),hdrCapacityMax:parseFloat(c)}}catch(t){}i=e.indexOf("<x:xmpmeta",t)}})(t);if(!e)throw new Cv("Gain map XMP metadata not found");const i=new Iv({extractFII:!0,extractNonFII:!0}),n=await i.extract(t);if(2!==n.length)throw new Sv("Gain map recovery image not found");return{sdr:new Uint8Array(await n[0].arrayBuffer()),gainMap:new Uint8Array(await n[1].arrayBuffer()),metadata:e}},Tv=t=>new Promise(((e,i)=>{const n=document.createElement("img");n.onload=()=>{e(n)},n.onerror=t=>{i(t)},n.src=URL.createObjectURL(t)}));class Bv extends Eo{constructor(t,e){super(e),t&&(this._renderer=t),this._internalLoadingManager=new xo}setRenderer(t){return this._renderer=t,this}setRenderTargetOptions(t){return this._renderTargetOptions=t,this}prepareQuadRenderer(){this._renderer||console.warn("WARNING: An existing WebGL Renderer was not passed to this Loader constructor or in setRenderer, the result of this Loader will need to be converted to a Data Texture with toDataTexture() before you can use it in your renderer.");const t=new Ev({gainMapMax:[1,1,1],gainMapMin:[0,0,0],gamma:[1,1,1],offsetHdr:[1,1,1],offsetSdr:[1,1,1],hdrCapacityMax:1,hdrCapacityMin:0,maxDisplayBoost:1,gainMap:new vi,sdr:new vi});return new _v({width:16,height:16,type:_t,colorSpace:Se,material:t,renderer:this._renderer,renderTargetOptions:this._renderTargetOptions})}async render(t,e,i,n){const s=n?new Blob([n],{type:"image/jpeg"}):void 0,r=new Blob([i],{type:"image/jpeg"});let a,o,l=!1;if("undefined"==typeof createImageBitmap){const t=await Promise.all([s?Tv(s):Promise.resolve(void 0),Tv(r)]);o=t[0],a=t[1],l=!0}else{const t=await Promise.all([s?createImageBitmap(s,{imageOrientation:"flipY"}):Promise.resolve(void 0),createImageBitmap(r,{imageOrientation:"flipY"})]);o=t[0],a=t[1]}const c=new vi(o||new ImageData(2,2),et,ot,ot,dt,1008,It,mt,1,Se);c.flipY=l,c.needsUpdate=!0;const h=new vi(a,et,ot,ot,dt,1008,It,mt,1,Ee);h.flipY=l,h.needsUpdate=!0,t.width=a.width,t.height=a.height,t.material.gainMap=c,t.material.sdr=h,t.material.gainMapMin=e.gainMapMin,t.material.gainMapMax=e.gainMapMax,t.material.offsetHdr=e.offsetHdr,t.material.offsetSdr=e.offsetSdr,t.material.gamma=e.gamma,t.material.hdrCapacityMin=e.hdrCapacityMin,t.material.hdrCapacityMax=e.hdrCapacityMax,t.material.maxDisplayBoost=Math.pow(2,e.hdrCapacityMax),t.material.needsUpdate=!0,t.render()}}class Rv extends Bv{load(t,e,i,n){const s=this.prepareQuadRenderer(),r=new wo(this._internalLoadingManager);return r.setResponseType("arraybuffer"),r.setRequestHeader(this.requestHeader),r.setPath(this.path),r.setWithCredentials(this.withCredentials),this.manager.itemStart(t),r.load(t,(async i=>{if("string"==typeof i)throw new Error("Invalid buffer, received [string], was expecting [ArrayBuffer]");const r=new Uint8Array(i);let a,o,l;try{const t=await Mv(r);a=t.sdr,o=t.gainMap,l=t.metadata}catch(e){if(!(e instanceof Cv||e instanceof Sv))throw e;console.warn(`Failure to reconstruct an HDR image from ${t}: Gain map metadata not found in the file, HDRJPGLoader will render the SDR jpeg`),l={gainMapMin:[0,0,0],gainMapMax:[1,1,1],gamma:[1,1,1],hdrCapacityMin:0,hdrCapacityMax:1,offsetHdr:[0,0,0],offsetSdr:[0,0,0]},a=r}try{await this.render(s,l,a,o)}catch(e){return this.manager.itemError(t),"function"==typeof n&&n(e),void s.disposeOnDemandRenderer()}"function"==typeof e&&e(s),this.manager.itemEnd(t),s.disposeOnDemandRenderer()}),i,(e=>{this.manager.itemError(t),"function"==typeof n&&n(e)})),s}}class Dv extends Mo{constructor(t){super(t),this.type=_t}parse(t){const e=function(t,e){switch(t){case 1:throw new Error("THREE.RGBELoader: Read Error: "+(e||""));case 2:throw new Error("THREE.RGBELoader: Write Error: "+(e||""));case 3:throw new Error("THREE.RGBELoader: Bad File Format: "+(e||""));default:throw new Error("THREE.RGBELoader: Memory Error: "+(e||""))}},i=function(t,e,i){e=e||1024;let n=t.pos,s=-1,r=0,a="",o=String.fromCharCode.apply(null,new Uint16Array(t.subarray(n,n+128)));for(;0>(s=o.indexOf("\n"))&&r<e&&n<t.byteLength;)a+=o,r+=o.length,n+=128,o+=String.fromCharCode.apply(null,new Uint16Array(t.subarray(n,n+128)));return-1<s&&(t.pos+=r+s+1,a+o.slice(0,s))},n=function(t,e,i,n){const s=t[e+3],r=Math.pow(2,s-128)/255;i[n+0]=t[e+0]*r,i[n+1]=t[e+1]*r,i[n+2]=t[e+2]*r,i[n+3]=1},s=function(t,e,i,n){const s=t[e+3],r=Math.pow(2,s-128)/255;i[n+0]=es.toHalfFloat(Math.min(t[e+0]*r,65504)),i[n+1]=es.toHalfFloat(Math.min(t[e+1]*r,65504)),i[n+2]=es.toHalfFloat(Math.min(t[e+2]*r,65504)),i[n+3]=es.toHalfFloat(1)},r=new Uint8Array(t);r.pos=0;const a=function(t){const n=/^\s*GAMMA\s*=\s*(\d+(\.\d+)?)\s*$/,s=/^\s*EXPOSURE\s*=\s*(\d+(\.\d+)?)\s*$/,r=/^\s*FORMAT=(\S+)\s*$/,a=/^\s*\-Y\s+(\d+)\s+\+X\s+(\d+)\s*$/,o={valid:0,string:"",comments:"",programtype:"RGBE",format:"",gamma:1,exposure:1,width:0,height:0};let l,c;for((t.pos>=t.byteLength||!(l=i(t)))&&e(1,"no header found"),(c=l.match(/^#\?(\S+)/))||e(3,"bad initial token"),o.valid|=1,o.programtype=c[1],o.string+=l+"\n";l=i(t),!1!==l;)if(o.string+=l+"\n","#"!==l.charAt(0)){if((c=l.match(n))&&(o.gamma=parseFloat(c[1])),(c=l.match(s))&&(o.exposure=parseFloat(c[1])),(c=l.match(r))&&(o.valid|=2,o.format=c[1]),(c=l.match(a))&&(o.valid|=4,o.height=parseInt(c[1],10),o.width=parseInt(c[2],10)),2&o.valid&&4&o.valid)break}else o.comments+=l+"\n";return 2&o.valid||e(3,"missing format specifier"),4&o.valid||e(3,"missing image size specifier"),o}(r),o=a.width,l=a.height,c=function(t,i,n){const s=i;if(s<8||s>32767||2!==t[0]||2!==t[1]||128&t[2])return new Uint8Array(t);s!==(t[2]<<8|t[3])&&e(3,"wrong scanline width");const r=new Uint8Array(4*i*n);r.length||e(4,"unable to allocate buffer space");let a=0,o=0;const l=4*s,c=new Uint8Array(4),h=new Uint8Array(l);let u=n;for(;u>0&&o<t.byteLength;){o+4>t.byteLength&&e(1),c[0]=t[o++],c[1]=t[o++],c[2]=t[o++],c[3]=t[o++],2==c[0]&&2==c[1]&&(c[2]<<8|c[3])==s||e(3,"bad rgbe scanline format");let i,n=0;for(;n<l&&o<t.byteLength;){i=t[o++];const s=i>128;if(s&&(i-=128),(0===i||n+i>l)&&e(3,"bad scanline data"),s){const e=t[o++];for(let t=0;t<i;t++)h[n++]=e}else h.set(t.subarray(o,o+i),n),n+=i,o+=i}const d=s;for(let t=0;t<d;t++){let e=0;r[a]=h[t+e],e+=s,r[a+1]=h[t+e],e+=s,r[a+2]=h[t+e],e+=s,r[a+3]=h[t+e],a+=4}u--}return r}(r.subarray(r.pos),o,l);let h,u,d;switch(this.type){case xt:d=c.length/4;const t=new Float32Array(4*d);for(let e=0;e<d;e++)n(c,4*e,t,4*e);h=t,u=xt;break;case _t:d=c.length/4;const e=new Uint16Array(4*d);for(let t=0;t<d;t++)s(c,4*t,e,4*t);h=e,u=_t;break;default:throw new Error("THREE.RGBELoader: Unsupported type: "+this.type)}return{width:o,height:l,data:h,header:a.string,gamma:a.gamma,exposure:a.exposure,type:u}}setDataType(t){return this.type=t,this}load(t,e,i,n){return super.load(t,(function(t,i){switch(t.type){case xt:case _t:t.colorSpace=Se,t.minFilter=dt,t.magFilter=dt,t.generateMipmaps=!1,t.flipY=!0}e&&e(t,i)}),i,n)}}
/* @license
 * Copyright 2021 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */const Lv={topLight:{intensity:500,position:[.418,16.199,.3]},room:{position:[-.757,13.219,.717],scale:[31.713,28.305,28.591]},boxes:[{position:[-10.906,2.009,1.846],rotation:-.195,scale:[2.328,7.905,4.651]},{position:[-5.607,-.754,-.758],rotation:.994,scale:[1.97,1.534,3.955]},{position:[6.167,.857,7.803],rotation:.561,scale:[3.927,6.285,3.687]},{position:[-2.017,.018,6.124],rotation:.333,scale:[2.002,4.566,2.064]},{position:[2.291,-.756,-2.621],rotation:-.286,scale:[1.546,1.552,1.496]},{position:[-2.193,-.369,-5.547],rotation:.516,scale:[3.875,3.487,2.986]}],lights:[{intensity:50,position:[-16.116,14.37,8.208],scale:[.1,2.428,2.739]},{intensity:50,position:[-16.109,18.021,-8.207],scale:[.1,2.425,2.751]},{intensity:17,position:[14.904,12.198,-1.832],scale:[.15,4.265,6.331]},{intensity:43,position:[-.462,8.89,14.52],scale:[4.38,5.441,.088]},{intensity:20,position:[3.235,11.486,-12.541],scale:[2.5,2,.1]},{intensity:100,position:[0,20,0],scale:[1,.1,1]}]},Pv={topLight:{intensity:400,position:[.5,14,.5]},room:{position:[0,13.2,0],scale:[31.5,28.5,31.5]},boxes:[{position:[-10.906,-1,1.846],rotation:-.195,scale:[2.328,7.905,4.651]},{position:[-5.607,-.754,-.758],rotation:.994,scale:[1.97,1.534,3.955]},{position:[6.167,-.16,7.803],rotation:.561,scale:[3.927,6.285,3.687]},{position:[-2.017,.018,6.124],rotation:.333,scale:[2.002,4.566,2.064]},{position:[2.291,-.756,-2.621],rotation:-.286,scale:[1.546,1.552,1.496]},{position:[-2.193,-.369,-5.547],rotation:.516,scale:[3.875,3.487,2.986]}],lights:[{intensity:80,position:[-14,10,8],scale:[.1,2.5,2.5]},{intensity:80,position:[-14,14,-4],scale:[.1,2.5,2.5]},{intensity:23,position:[14,12,0],scale:[.1,5,5]},{intensity:16,position:[0,9,14],scale:[5,5,.1]},{intensity:80,position:[7,8,-14],scale:[2.5,2.5,.1]},{intensity:80,position:[-7,16,-14],scale:[2.5,2.5,.1]},{intensity:1,position:[0,20,0],scale:[.1,.1,.1]}]};class Uv extends Xs{constructor(t){super(),this.position.y=-3.5;const e=new Bs;e.deleteAttribute("uv");const i=new Ja({metalness:0,side:1}),n=new Ja({metalness:0}),s="legacy"==t?Lv:Pv,r=new Go(16777215,s.topLight.intensity,28,2);r.position.set(...s.topLight.position),this.add(r);const a=new Ms(e,i);a.position.set(...s.room.position),a.scale.set(...s.room.scale),this.add(a);for(const t of s.boxes){const i=new Ms(e,n);i.position.set(...t.position),i.rotation.set(0,t.rotation,0),i.scale.set(...t.scale),this.add(i)}for(const t of s.lights){const i=new Ms(e,this.createAreaLightMaterial(t.intensity));i.position.set(...t.position),i.scale.set(...t.scale),this.add(i)}}createAreaLightMaterial(t){const e=new $n;return e.color.setScalar(t),e}}
/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */const Fv=20,Nv=/\.hdr(\.js)?$/;class Ov{constructor(t){this.threeRenderer=t,this.lottieLoaderUrl="",this._ldrLoader=null,this._imageLoader=null,this._hdrLoader=null,this._lottieLoader=null,this.generatedEnvironmentMap=null,this.generatedEnvironmentMapAlt=null,this.skyboxCache=new Map,this.blurMaterial=null,this.blurScene=null}ldrLoader(t){return null==this._ldrLoader&&(this._ldrLoader=new To),this._ldrLoader.setWithCredentials(t),this._ldrLoader}imageLoader(t){return null==this._imageLoader&&(this._imageLoader=new Rv(this.threeRenderer)),this._imageLoader.setWithCredentials(t),this._imageLoader}hdrLoader(t){return null==this._hdrLoader&&(this._hdrLoader=new Dv,this._hdrLoader.setDataType(_t)),this._hdrLoader.setWithCredentials(t),this._hdrLoader}async getLottieLoader(t){if(null==this._lottieLoader){const{LottieLoader:t}=await import(this.lottieLoaderUrl);this._lottieLoader=new t}return this._lottieLoader.setWithCredentials(t),this._lottieLoader}async loadImage(t,e){const i=await new Promise(((i,n)=>this.ldrLoader(e).load(t,i,(()=>{}),n)));return i.name=t,i.flipY=!1,i}async loadLottie(t,e,i){const n=await this.getLottieLoader(i);n.setQuality(e);const s=await new Promise(((e,i)=>n.load(t,e,(()=>{}),i)));return s.name=t,s}async loadEquirect(t,e=!1,i=()=>{}){try{const n=Nv.test(t),s=n?this.hdrLoader(e):this.imageLoader(e),r=await new Promise(((e,n)=>s.load(t,(t=>{const{renderTarget:i}=t;if(null!=i){const{texture:n}=i;t.dispose(!1),e(n)}else e(t)}),(t=>{i(t.loaded/t.total*.9)}),n)));return i(1),r.name=t,r.mapping=st,n||(r.colorSpace=Ee),r}finally{i&&i(1)}}async generateEnvironmentMapAndSkybox(t=null,e=null,i=()=>{},n=!1){const s="legacy"!==e;"legacy"!==e&&"neutral"!==e||(e=null),e=qu(e);let r,a=Promise.resolve(null);t&&(a=this.loadEquirectFromUrl(t,n,i)),r=e?this.loadEquirectFromUrl(e,n,i):t?this.loadEquirectFromUrl(t,n,i):s?this.loadGeneratedEnvironmentMapAlt():this.loadGeneratedEnvironmentMap();const[o,l]=await Promise.all([r,a]);if(null==o)throw new Error("Failed to load environment map.");return{environmentMap:o,skybox:l}}async loadEquirectFromUrl(t,e,i){if(!this.skyboxCache.has(t)){const n=this.loadEquirect(t,e,i);this.skyboxCache.set(t,n)}return this.skyboxCache.get(t)}async GenerateEnvironmentMap(t,e){await((t=0)=>new Promise((e=>setTimeout(e,t))))();const i=this.threeRenderer,n=new Vs(256,{generateMipmaps:!1,type:_t,format:It,colorSpace:Se,depthBuffer:!0}),s=new Hs(.1,100,n),r=s.renderTarget.texture;r.name=e;const a=i.outputColorSpace,o=i.toneMapping;return i.toneMapping=0,i.outputColorSpace=Se,s.update(i,t),this.blurCubemap(n,.04),i.toneMapping=o,i.outputColorSpace=a,r}async loadGeneratedEnvironmentMap(){return null==this.generatedEnvironmentMap&&(this.generatedEnvironmentMap=this.GenerateEnvironmentMap(new Uv("legacy"),"legacy")),this.generatedEnvironmentMap}async loadGeneratedEnvironmentMapAlt(){return null==this.generatedEnvironmentMapAlt&&(this.generatedEnvironmentMapAlt=this.GenerateEnvironmentMap(new Uv("neutral"),"neutral")),this.generatedEnvironmentMapAlt}blurCubemap(t,e){if(null==this.blurMaterial){this.blurMaterial=this.getBlurShader(Fv);const t=new Bs,e=new Ms(t,this.blurMaterial);this.blurScene=new Xs,this.blurScene.add(e)}const i=t.clone();this.halfblur(t,i,e,"latitudinal"),this.halfblur(i,t,e,"longitudinal")}halfblur(t,e,i,n){const s=t.width,r=isFinite(i)?Math.PI/(2*s):2*Math.PI/39,a=i/r,o=isFinite(i)?1+Math.floor(3*a):Fv;o>Fv&&console.warn(`sigmaRadians, ${i}, is too large and will clip, as it requested ${o} samples when the maximum is set to 20`);const l=[];let c=0;for(let t=0;t<Fv;++t){const e=t/a,i=Math.exp(-e*e/2);l.push(i),0==t?c+=i:t<o&&(c+=2*i)}for(let t=0;t<l.length;t++)l[t]=l[t]/c;const h=this.blurMaterial.uniforms;h.envMap.value=t.texture,h.samples.value=o,h.weights.value=l,h.latitudinal.value="latitudinal"===n,h.dTheta.value=r;new Hs(.1,100,e).update(this.threeRenderer,this.blurScene)}getBlurShader(t){const e=new Float32Array(t),i=new Ci(0,1,0);return new Us({name:"SphericalGaussianBlur",defines:{n:t},uniforms:{envMap:{value:null},samples:{value:1},weights:{value:e},latitudinal:{value:!1},dTheta:{value:0},poleAxis:{value:i}},vertexShader:"\n      \n      varying vec3 vOutputDirection;\n  \n      void main() {\n  \n        vOutputDirection = vec3( position );\n        gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n  \n      }\n    ",fragmentShader:"\n        varying vec3 vOutputDirection;\n  \n        uniform samplerCube envMap;\n        uniform int samples;\n        uniform float weights[ n ];\n        uniform bool latitudinal;\n        uniform float dTheta;\n        uniform vec3 poleAxis;\n  \n        vec3 getSample( float theta, vec3 axis ) {\n  \n          float cosTheta = cos( theta );\n          // Rodrigues' axis-angle rotation\n          vec3 sampleDirection = vOutputDirection * cosTheta\n            + cross( axis, vOutputDirection ) * sin( theta )\n            + axis * dot( axis, vOutputDirection ) * ( 1.0 - cosTheta );\n  \n          return vec3( textureCube( envMap, sampleDirection ) );\n  \n        }\n  \n        void main() {\n  \n          vec3 axis = latitudinal ? poleAxis : cross( poleAxis, vOutputDirection );\n  \n          if ( all( equal( axis, vec3( 0.0 ) ) ) ) {\n  \n            axis = vec3( vOutputDirection.z, 0.0, - vOutputDirection.x );\n  \n          }\n  \n          axis = normalize( axis );\n  \n          gl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n          gl_FragColor.rgb += weights[ 0 ] * getSample( 0.0, axis );\n  \n          for ( int i = 1; i < n; i++ ) {\n  \n            if ( i >= samples ) {\n  \n              break;\n  \n            }\n  \n            float theta = dTheta * float( i );\n            gl_FragColor.rgb += weights[ i ] * getSample( -1.0 * theta, axis );\n            gl_FragColor.rgb += weights[ i ] * getSample( theta, axis );\n  \n          }\n        }\n      ",blending:0,depthTest:!1,depthWrite:!1,side:1})}async dispose(){for(const[,t]of this.skyboxCache){(await t).dispose()}null!=this.generatedEnvironmentMap&&((await this.generatedEnvironmentMap).dispose(),this.generatedEnvironmentMap=null),null!=this.generatedEnvironmentMapAlt&&((await this.generatedEnvironmentMapAlt).dispose(),this.generatedEnvironmentMapAlt=null),null!=this.blurMaterial&&this.blurMaterial.dispose()}}
/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */const Qv=[1,.79,.62,.5,.4,.31,.25],kv="high-performance";class Gv extends ke{static get singleton(){return this._singleton||(this._singleton=new Gv({powerPreference:(self.ModelViewerElement||{}).powerPreference||kv,debug:Ju()})),this._singleton}static resetSingleton(){const t=this._singleton.dispose();for(const e of t)e.disconnectedCallback();this._singleton=new Gv({powerPreference:(self.ModelViewerElement||{}).powerPreference||kv,debug:Ju()});for(const e of t)e.connectedCallback()}get canRender(){return null!=this.threeRenderer}get scaleFactor(){return Qv[this.scaleStep]}set minScale(t){let e=1;for(;e<Qv.length&&!(Qv[e]<t);)++e;this.lastStep=e-1}constructor(t){super(),this.loader=new cA(bv),this.width=0,this.height=0,this.dpr=1,this.scenes=new Set,this.multipleScenesVisible=!1,this.lastTick=performance.now(),this.renderedLastFrame=!1,this.scaleStep=0,this.lastStep=3,this.avgFrameDuration=50,this.onWebGLContextLost=t=>{this.dispatchEvent({type:"contextlost",sourceEvent:t})},this.onWebGLContextRestored=()=>{var t;null===(t=this.textureUtils)||void 0===t||t.dispose(),this.textureUtils=new Ov(this.threeRenderer);for(const t of this.scenes)t.element[ed]()},this.dpr=window.devicePixelRatio,this.canvas3D=document.createElement("canvas"),this.canvas3D.id="webgl-canvas",this.canvas3D.classList.add("show");try{this.threeRenderer=new Xh({canvas:this.canvas3D,alpha:!0,antialias:!0,powerPreference:t.powerPreference,preserveDrawingBuffer:!0}),this.threeRenderer.autoClear=!0,this.threeRenderer.setPixelRatio(1),this.threeRenderer.debug={checkShaderErrors:!!t.debug,onShaderError:null},this.threeRenderer.toneMapping=7}catch(t){console.warn(t)}this.arRenderer=new tv(this),this.textureUtils=this.canRender?new Ov(this.threeRenderer):null,cA.initializeKTX2Loader(this.threeRenderer),this.canvas3D.addEventListener("webglcontextlost",this.onWebGLContextLost),this.canvas3D.addEventListener("webglcontextrestored",this.onWebGLContextRestored),this.updateRendererSize()}registerScene(t){this.scenes.add(t),t.forceRescale();const e=new $e;this.threeRenderer.getSize(e),t.canvas.width=e.x,t.canvas.height=e.y,this.canRender&&this.scenes.size>0&&this.threeRenderer.setAnimationLoop(((t,e)=>this.render(t,e)))}unregisterScene(t){this.scenes.delete(t),this.canvas3D.parentElement===t.canvas.parentElement&&t.canvas.parentElement.removeChild(this.canvas3D),this.canRender&&0===this.scenes.size&&this.threeRenderer.setAnimationLoop(null)}displayCanvas(t){return t.element.modelIsVisible&&!this.multipleScenesVisible?this.canvas3D:t.element[Rx]}countVisibleScenes(){const{canvas3D:t}=this;let e=0,i=null;for(const n of this.scenes){const{element:s}=n;s.modelIsVisible&&null==n.externalRenderer&&++e,t.parentElement===n.canvas.parentElement&&(i=n)}const n=e>1;if(null!=i){const e=n&&!this.multipleScenesVisible,s=!i.element.modelIsVisible;if(e||s){const{width:e,height:n}=this.sceneSize(i);this.copyPixels(i,e,n),t.parentElement.removeChild(t)}}this.multipleScenesVisible=n}updateRendererSize(){var t;const e=window.devicePixelRatio;if(e!==this.dpr)for(const t of this.scenes){const{element:e}=t;e[vx](e.getBoundingClientRect())}let i=0,n=0;for(const t of this.scenes)i=Math.max(i,t.width),n=Math.max(n,t.height);if(i!==this.width||n!==this.height||e!==this.dpr){this.width=i,this.height=n,this.dpr=e,i=Math.ceil(i*e),n=Math.ceil(n*e),this.canRender&&this.threeRenderer.setSize(i,n,!1);for(const e of this.scenes){const{canvas:s}=e;s.width=i,s.height=n,e.forceRescale(),null===(t=e.effectRenderer)||void 0===t||t.setSize(i,n)}}}updateRendererScale(t){const e=this.scaleStep;this.avgFrameDuration+=Ku(.2*(t-this.avgFrameDuration),-5,5),this.avgFrameDuration>60?++this.scaleStep:this.avgFrameDuration<40&&this.scaleStep>0&&--this.scaleStep,this.scaleStep=Math.min(this.scaleStep,this.lastStep),e!==this.scaleStep&&(this.avgFrameDuration=50)}shouldRender(t){if(t.shouldRender())t.scaleStep!=this.scaleStep&&(t.scaleStep=this.scaleStep,this.rescaleCanvas(t));else{if(0==t.scaleStep)return!1;t.scaleStep=0,this.rescaleCanvas(t)}return!0}rescaleCanvas(t){const e=Qv[t.scaleStep],i=Math.ceil(this.width/e),n=Math.ceil(this.height/e),{style:s}=t.canvas;s.width=`${i}px`,s.height=`${n}px`,this.canvas3D.style.width=`${i}px`,this.canvas3D.style.height=`${n}px`;const r=this.dpr*e,a=e<1?"GPU throttling":this.dpr!==window.devicePixelRatio?"No meta viewport tag":"";t.element.dispatchEvent(new CustomEvent("render-scale",{detail:{reportedDpr:window.devicePixelRatio,renderedDpr:r,minimumDpr:this.dpr*Qv[this.lastStep],pixelWidth:Math.ceil(t.width*r),pixelHeight:Math.ceil(t.height*r),reason:a}}))}sceneSize(t){const{dpr:e}=this,i=Qv[t.scaleStep];return{width:Math.min(Math.ceil(t.width*i*e),this.canvas3D.width),height:Math.min(Math.ceil(t.height*i*e),this.canvas3D.height)}}copyPixels(t,e,i){const n=t.context;null!=n?(n.clearRect(0,0,e,i),n.drawImage(this.canvas3D,0,0,e,i,0,0,e,i),t.canvas.classList.add("show")):console.log("could not acquire 2d context")}orderedScenes(){const t=[];for(const e of[!1,!0])for(const i of this.scenes)i.element.modelIsVisible===e&&t.push(i);return t}get isPresenting(){return this.arRenderer.isPresenting}preRender(t,e,i){const{element:n,exposure:s,toneMapping:r}=t;n[Px](e,i);const a="number"==typeof s&&!Number.isNaN(s),o=n.environmentImage,l=n.skyboxImage,c=7===r&&("neutral"===o||"legacy"===o||!o&&!l);this.threeRenderer.toneMappingExposure=(a?s:1)*(c?1.3:1)}render(t,e){if(null!=e)return void this.arRenderer.onWebXRFrame(t,e);const i=t-this.lastTick;if(this.lastTick=t,!this.canRender||this.isPresenting)return;this.countVisibleScenes(),this.updateRendererSize(),this.renderedLastFrame&&(this.updateRendererScale(i),this.renderedLastFrame=!1);const{canvas3D:n}=this;for(const e of this.orderedScenes()){const{element:s}=e;if(!s.loaded||!s.modelIsVisible&&e.renderCount>0)continue;if(this.preRender(e,t,i),!this.shouldRender(e))continue;if(null!=e.externalRenderer){const t=e.getCamera();t.updateMatrix();const{matrix:i,projectionMatrix:n}=t,s=i.elements.slice(),r=e.getTarget();s[12]+=r.x,s[13]+=r.y,s[14]+=r.z,e.externalRenderer.render({viewMatrix:s,projectionMatrix:n.elements});continue}if(!s.modelIsVisible&&!this.multipleScenesVisible)for(const t of this.scenes)t.element.modelIsVisible&&t.queueRender();const{width:r,height:a}=this.sceneSize(e);e.renderShadow(this.threeRenderer),this.threeRenderer.setRenderTarget(null),this.threeRenderer.setViewport(0,Math.ceil(this.height*this.dpr)-a,r,a),null!=e.effectRenderer?e.effectRenderer.render(i):(this.threeRenderer.autoClear=!0,this.threeRenderer.toneMapping=e.toneMapping,this.threeRenderer.render(e,e.camera)),this.multipleScenesVisible||!e.element.modelIsVisible&&0===e.renderCount?this.copyPixels(e,r,a):n.parentElement!==e.canvas.parentElement&&(e.canvas.parentElement.appendChild(n),e.canvas.classList.remove("show")),e.hasRendered(),++e.renderCount,this.renderedLastFrame=!0}}dispose(){null!=this.textureUtils&&this.textureUtils.dispose(),null!=this.threeRenderer&&this.threeRenderer.dispose(),this.textureUtils=null,this.threeRenderer=null;const t=[];for(const e of this.scenes)t.push(e.element);return this.canvas3D.removeEventListener("webglcontextlost",this.onWebGLContextLost),this.canvas3D.removeEventListener("webglcontextrestored",this.onWebGLContextRestored),t}}
/* @license
 * Copyright 2020 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */const Hv=Symbol("correlatedObjects"),zv=Symbol("onUpdate");class Vv{constructor(t,e){this[zv]=t,this[Hv]=e}}
/* @license
 * Copyright 2020 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */const Wv=new $n,qv=new Xa(2,2);let jv=0;const Xv=Symbol("threeTexture"),Yv=Symbol("threeTextures");let Kv=class extends Vv{get[Xv](){var t;return null===(t=this[Hv])||void 0===t?void 0:t.values().next().value}get[Yv](){return this[Hv]}constructor(t,e){super(t,new Set(e?[e]:[])),this[Xv].image.src||(this[Xv].image.src=e.name?e.name:"adhoc_image"+jv++),this[Xv].image.name||(this[Xv].image.name=e&&e.image&&e.image.src?e.image.src.split("/").pop():"adhoc_image")}get name(){return this[Xv].image.name||""}get uri(){return this[Xv].image.src}get bufferView(){return this[Xv].image.bufferView}get element(){const t=this[Xv];if(t&&(t.isCanvasTexture||t.isVideoTexture))return t.image}get animation(){const t=this[Xv];if(t&&t.isCanvasTexture&&t.animation)return t.animation}get type(){return null!=this.uri?"external":"embedded"}set name(t){for(const e of this[Yv])e.image.name=t}update(){const t=this[Xv];t&&t.isCanvasTexture&&!t.animation&&(this[Xv].needsUpdate=!0,this[zv]())}async createThumbnail(t,e){const i=new Xs;Wv.map=this[Xv];const n=new Ms(qv,Wv);i.add(n);const s=new Ho(-1,1,1,-1,0,1),{threeRenderer:r}=Gv.singleton,a=new xi(t,e);r.setRenderTarget(a),r.render(i,s),r.setRenderTarget(null);const o=new Uint8Array(t*e*4);r.readRenderTargetPixels(a,0,0,t,e,o),lx.width=t,lx.height=e;const l=lx.getContext("2d"),c=l.createImageData(t,e);return c.data.set(o),l.putImageData(c,0,0),new Promise((async(t,e)=>{lx.toBlob((i=>{if(!i)return e("Failed to capture thumbnail.");t(URL.createObjectURL(i))}),"image/png")}))}};var Jv,$v;!function(t){t[t.Nearest=9728]="Nearest",t[t.Linear=9729]="Linear",t[t.NearestMipmapNearest=9984]="NearestMipmapNearest",t[t.LinearMipmapNearest=9985]="LinearMipmapNearest",t[t.NearestMipmapLinear=9986]="NearestMipmapLinear",t[t.LinearMipmapLinear=9987]="LinearMipmapLinear"}(Jv||(Jv={})),function(t){t[t.ClampToEdge=33071]="ClampToEdge",t[t.MirroredRepeat=33648]="MirroredRepeat",t[t.Repeat=10497]="Repeat"}($v||($v={}));
/* @license
 * Copyright 2020 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
const Zv=new Map([[$v.Repeat,at],[$v.ClampToEdge,ot],[$v.MirroredRepeat,lt]]),tb=new Map([[at,$v.Repeat],[ot,$v.ClampToEdge],[lt,$v.MirroredRepeat]]),eb=new Map([[Jv.Nearest,ct],[Jv.Linear,dt],[Jv.NearestMipmapNearest,ht],[Jv.LinearMipmapNearest,pt],[Jv.NearestMipmapLinear,ut],[Jv.LinearMipmapLinear,At]]),ib=new Map([[ct,Jv.Nearest],[dt,Jv.Linear],[ht,Jv.NearestMipmapNearest],[pt,Jv.LinearMipmapNearest],[ut,Jv.NearestMipmapLinear],[At,Jv.LinearMipmapLinear]]),nb=new Map([[Jv.Nearest,ct],[Jv.Linear,dt]]),sb=new Map([[ct,Jv.Nearest],[dt,Jv.Linear]]),rb=t=>ib.has(t),ab=t=>sb.has(t),ob=t=>tb.has(t),lb=Symbol("threeTexture"),cb=Symbol("threeTextures"),hb=Symbol("setProperty");class ub extends Vv{get[lb](){var t;return null===(t=this[Hv])||void 0===t?void 0:t.values().next().value}get[cb](){return this[Hv]}constructor(t,e){super(t,new Set(e?[e]:[]))}get name(){return this[lb].name||""}get minFilter(){return ib.get(this[lb].minFilter)}get magFilter(){return sb.get(this[lb].magFilter)}get wrapS(){return tb.get(this[lb].wrapS)}get wrapT(){return tb.get(this[lb].wrapT)}get rotation(){return this[lb].rotation}get scale(){return zx(this[lb].repeat)}get offset(){return zx(this[lb].offset)}setMinFilter(t){this[hb]("minFilter",eb.get(t))}setMagFilter(t){this[hb]("magFilter",nb.get(t))}setWrapS(t){this[hb]("wrapS",Zv.get(t))}setWrapT(t){this[hb]("wrapT",Zv.get(t))}setRotation(t){null==t&&(t=0),this[hb]("rotation",t)}setScale(t){null==t&&(t={u:1,v:1}),this[hb]("repeat",new $e(t.u,t.v))}setOffset(t){null==t&&(t={u:0,v:0}),this[hb]("offset",new $e(t.u,t.v))}[hb](t,e){if(((t,e)=>{switch(t){case"minFilter":return rb(e);case"magFilter":return ab(e);case"wrapS":case"wrapT":return ob(e);case"rotation":case"repeat":case"offset":return!0;default:throw new Error(`Cannot configure property "${t}" on Sampler`)}})(t,e))for(const i of this[cb])i[t]=e,i.needsUpdate=!0;this[zv]()}}
/* @license
 * Copyright 2020 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */const db=Symbol("image"),pb=Symbol("sampler"),Ab=Symbol("threeTexture");class mb extends Vv{get[Ab](){var t;return null===(t=this[Hv])||void 0===t?void 0:t.values().next().value}constructor(t,e){super(t,new Set(e?[e]:[])),this[pb]=new ub(t,e),this[db]=new Kv(t,e)}get name(){return this[Ab].name||""}set name(t){for(const e of this[Hv])e.name=t}get sampler(){return this[pb]}get source(){return this[db]}}
/* @license
 * Copyright 2020 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */var gb,fb,vb;const bb=Symbol("texture"),yb=Symbol("transform"),xb=Symbol("materials"),_b=Symbol("usage"),Eb=Symbol("onUpdate"),Sb=Symbol("activeVideo");var Cb;!function(t){t[t.Base=0]="Base",t[t.MetallicRoughness=1]="MetallicRoughness",t[t.Normal=2]="Normal",t[t.Occlusion=3]="Occlusion",t[t.Emissive=4]="Emissive",t[t.Clearcoat=5]="Clearcoat",t[t.ClearcoatRoughness=6]="ClearcoatRoughness",t[t.ClearcoatNormal=7]="ClearcoatNormal",t[t.SheenColor=8]="SheenColor",t[t.SheenRoughness=9]="SheenRoughness",t[t.Transmission=10]="Transmission",t[t.Thickness=11]="Thickness",t[t.Specular=12]="Specular",t[t.SpecularColor=13]="SpecularColor",t[t.Iridescence=14]="Iridescence",t[t.IridescenceThickness=15]="IridescenceThickness",t[t.Anisotropy=16]="Anisotropy"}(Cb||(Cb={}));class wb{constructor(t,e,i,n){this[gb]=null,this[fb]={rotation:0,scale:new $e(1,1),offset:new $e(0,0)},this[vb]=!1,i&&(this[yb].rotation=i.rotation,this[yb].scale.copy(i.repeat),this[yb].offset.copy(i.offset),this[bb]=new mb(t,i)),this[Eb]=t,this[xb]=n,this[_b]=e}get texture(){return this[bb]}setTexture(t){var e,i;const n=null!=t?t.source[Xv]:null,s=null===(e=this[bb])||void 0===e?void 0:e.source[Xv];if(null!=s&&s.isVideoTexture?this[Sb]=!1:(null===(i=this[bb])||void 0===i?void 0:i.source.animation)&&this[bb].source.animation.removeEventListener("enterFrame",this[Eb]),this[bb]=t,null!=n&&n.isVideoTexture){const t=n.image;if(this[Sb]=!0,null!=t.requestVideoFrameCallback){const e=()=>{this[Sb]&&(this[Eb](),t.requestVideoFrameCallback(e))};t.requestVideoFrameCallback(e)}else{const t=()=>{this[Sb]&&(this[Eb](),requestAnimationFrame(t))};requestAnimationFrame(t)}}else null!=(null==t?void 0:t.source.animation)&&t.source.animation.addEventListener("enterFrame",this[Eb]);let r=Ee;if(this[xb])for(const t of this[xb]){switch(this[_b]){case Cb.Base:t.map=n;break;case Cb.MetallicRoughness:r=Se,t.metalnessMap=n,t.roughnessMap=n;break;case Cb.Normal:r=Se,t.normalMap=n;break;case Cb.Occlusion:r=Se,t.aoMap=n;break;case Cb.Emissive:t.emissiveMap=n;break;case Cb.Clearcoat:t.clearcoatMap=n;break;case Cb.ClearcoatRoughness:t.clearcoatRoughnessMap=n;break;case Cb.ClearcoatNormal:t.clearcoatNormalMap=n;break;case Cb.SheenColor:t.sheenColorMap=n;break;case Cb.SheenRoughness:t.sheenRoughnessMap=n;break;case Cb.Transmission:t.transmissionMap=n;break;case Cb.Thickness:t.thicknessMap=n;break;case Cb.Specular:t.specularIntensityMap=n;break;case Cb.SpecularColor:t.specularColorMap=n;break;case Cb.Iridescence:t.iridescenceMap=n;break;case Cb.IridescenceThickness:t.iridescenceThicknessMap=n;break;case Cb.Anisotropy:t.anisotropyMap=n}t.needsUpdate=!0}n&&(n.colorSpace=r,n.rotation=this[yb].rotation,n.repeat=this[yb].scale,n.offset=this[yb].offset),this[Eb]()}}gb=bb,fb=yb,vb=Sb;
/* @license
 * Copyright 2020 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
const Ib=Symbol("threeMaterial"),Mb=Symbol("threeMaterials"),Tb=Symbol("baseColorTexture"),Bb=Symbol("metallicRoughnessTexture");class Rb extends Vv{get[Mb](){return this[Hv]}get[Ib](){var t;return null===(t=this[Hv])||void 0===t?void 0:t.values().next().value}constructor(t,e){super(t,e);const{map:i,metalnessMap:n}=e.values().next().value;this[Tb]=new wb(t,Cb.Base,i,e),this[Bb]=new wb(t,Cb.MetallicRoughness,n,e)}get baseColorFactor(){const t=[0,0,0,this[Ib].opacity];return this[Ib].color.toArray(t),t}get metallicFactor(){return this[Ib].metalness}get roughnessFactor(){return this[Ib].roughness}get baseColorTexture(){return this[Tb]}get metallicRoughnessTexture(){return this[Bb]}setBaseColorFactor(t){const e=new Xn;t instanceof Array?e.fromArray(t):e.set(t);for(const i of this[Mb])i.color.set(e),t instanceof Array&&t.length>3?i.opacity=t[3]:(t=[0,0,0,i.opacity],e.toArray(t));this[zv]()}setMetallicFactor(t){for(const e of this[Mb])e.metalness=t;this[zv]()}setRoughnessFactor(t){for(const e of this[Mb])e.roughness=t;this[zv]()}}
/* @license
 * Copyright 2020 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */var Db,Lb;const Pb=Symbol("pbrMetallicRoughness"),Ub=Symbol("normalTexture"),Fb=Symbol("occlusionTexture"),Nb=Symbol("emissiveTexture"),Ob=Symbol("backingThreeMaterial"),Qb=Symbol("applyAlphaCutoff"),kb=Symbol("getAlphaMode"),Gb=Symbol("lazyLoadGLTFInfo"),Hb=Symbol("initialize"),zb=Symbol("getLoadedMaterial"),Vb=Symbol("ensureMaterialIsLoaded"),Wb=Symbol("gltfIndex"),qb=Symbol("setActive"),jb=Symbol("variantIndices"),Xb=Symbol("isActive"),Yb=Symbol("modelVariants"),Kb=Symbol("name"),Jb=Symbol("pbrTextures");class $b extends Vv{get[(Db=jb,Lb=Jb,Ob)](){return this[Hv].values().next().value}constructor(t,e,i,n,s,r,a=void 0){super(t,s),this[Db]=new Set,this[Lb]=new Map,this[Wb]=e,this[Xb]=i,this[Yb]=n,this[Kb]=r,null==a?this[Hb]():this[Gb]=a}[Hb](){const t=this[zv],e=this[Hv];this[Pb]=new Rb(t,e);const{normalMap:i,aoMap:n,emissiveMap:s}=e.values().next().value;this[Ub]=new wb(t,Cb.Normal,i,e),this[Fb]=new wb(t,Cb.Occlusion,n,e),this[Nb]=new wb(t,Cb.Emissive,s,e);const r=i=>{this[Jb].set(i,new wb(t,i,null,e))};r(Cb.Clearcoat),r(Cb.ClearcoatRoughness),r(Cb.ClearcoatNormal),r(Cb.SheenColor),r(Cb.SheenRoughness),r(Cb.Transmission),r(Cb.Thickness),r(Cb.Specular),r(Cb.SpecularColor),r(Cb.Iridescence),r(Cb.IridescenceThickness),r(Cb.Anisotropy)}async[zb](){if(null!=this[Gb]){const t=await this[Gb].doLazyLoad();return this[Hb](),this[Gb]=void 0,this.ensureLoaded=async()=>{},t}return null}colorFromRgb(t){const e=new Xn;return t instanceof Array?e.fromArray(t):e.set(t),e}[Vb](){if(null!=this[Gb])throw new Error(`Material "${this.name}" has not been loaded, call 'await\n    myMaterial.ensureLoaded()' before using an unloaded material.`)}async ensureLoaded(){await this[zb]()}get isLoaded(){return null==this[Gb]}get isActive(){return this[Xb]}[qb](t){this[Xb]=t}get name(){return this[Kb]||""}set name(t){if(this[Kb]=t,null!=this[Hv])for(const e of this[Hv])e.name=t}get pbrMetallicRoughness(){return this[Vb](),this[Pb]}get normalTexture(){return this[Vb](),this[Ub]}get occlusionTexture(){return this[Vb](),this[Fb]}get emissiveTexture(){return this[Vb](),this[Nb]}get emissiveFactor(){return this[Vb](),this[Ob].emissive.toArray()}get index(){return this[Wb]}hasVariant(t){const e=this[Yb].get(t);return null!=e&&this[jb].has(e.index)}setEmissiveFactor(t){this[Vb]();const e=this.colorFromRgb(t);for(const t of this[Hv])t.emissive.set(e);this[zv]()}[kb](){return this[Ob].transparent?"BLEND":this[Ob].alphaTest>0?"MASK":"OPAQUE"}[Qb](){this[Vb]();for(const t of this[Hv])"MASK"===this[kb]()?null==t.alphaTest&&(t.alphaTest=.5):t.alphaTest=void 0,t.needsUpdate=!0}setAlphaCutoff(t){this[Vb]();for(const e of this[Hv])e.alphaTest=t,e.needsUpdate=!0;this[Qb](),this[zv]()}getAlphaCutoff(){return this[Vb](),this[Ob].alphaTest}setDoubleSided(t){this[Vb]();for(const e of this[Hv])e.side=t?2:0,e.needsUpdate=!0;this[zv]()}getDoubleSided(){return this[Vb](),2==this[Ob].side}setAlphaMode(t){this[Vb]();const e=(t,e)=>{t.transparent=e,t.depthWrite=!e};for(const i of this[Hv])e(i,"BLEND"===t),i.alphaTest="MASK"===t?.5:void 0,i.needsUpdate=!0;this[zv]()}getAlphaMode(){return this[Vb](),this[kb]()}get emissiveStrength(){return this[Vb](),this[Ob].emissiveIntensity}setEmissiveStrength(t){this[Vb]();for(const e of this[Hv])e.emissiveIntensity=t;this[zv]()}get clearcoatFactor(){return this[Vb](),this[Ob].clearcoat}get clearcoatRoughnessFactor(){return this[Vb](),this[Ob].clearcoatRoughness}get clearcoatTexture(){return this[Vb](),this[Jb].get(Cb.Clearcoat)}get clearcoatRoughnessTexture(){return this[Vb](),this[Jb].get(Cb.ClearcoatRoughness)}get clearcoatNormalTexture(){return this[Vb](),this[Jb].get(Cb.ClearcoatNormal)}get clearcoatNormalScale(){return this[Vb](),this[Ob].clearcoatNormalScale.x}setClearcoatFactor(t){this[Vb]();for(const e of this[Hv])e.clearcoat=t;this[zv]()}setClearcoatRoughnessFactor(t){this[Vb]();for(const e of this[Hv])e.clearcoatRoughness=t;this[zv]()}setClearcoatNormalScale(t){this[Vb]();for(const e of this[Hv])e.clearcoatNormalScale=new $e(t,t);this[zv]()}get ior(){return this[Vb](),this[Ob].ior}setIor(t){this[Vb]();for(const e of this[Hv])e.ior=t;this[zv]()}get sheenColorFactor(){return this[Vb](),this[Ob].sheenColor.toArray()}get sheenColorTexture(){return this[Vb](),this[Jb].get(Cb.SheenColor)}get sheenRoughnessFactor(){return this[Vb](),this[Ob].sheenRoughness}get sheenRoughnessTexture(){return this[Vb](),this[Jb].get(Cb.SheenRoughness)}setSheenColorFactor(t){this[Vb]();const e=this.colorFromRgb(t);for(const t of this[Hv])t.sheenColor.set(e),t.sheen=1;this[zv]()}setSheenRoughnessFactor(t){this[Vb]();for(const e of this[Hv])e.sheenRoughness=t,e.sheen=1;this[zv]()}get transmissionFactor(){return this[Vb](),this[Ob].transmission}get transmissionTexture(){return this[Vb](),this[Jb].get(Cb.Transmission)}setTransmissionFactor(t){this[Vb]();for(const e of this[Hv])e.transmission=t;this[zv]()}get thicknessFactor(){return this[Vb](),this[Ob].thickness}get thicknessTexture(){return this[Vb](),this[Jb].get(Cb.Thickness)}get attenuationDistance(){return this[Vb](),this[Ob].attenuationDistance}get attenuationColor(){return this[Vb](),this[Ob].attenuationColor.toArray()}setThicknessFactor(t){this[Vb]();for(const e of this[Hv])e.thickness=t;this[zv]()}setAttenuationDistance(t){this[Vb]();for(const e of this[Hv])e.attenuationDistance=t;this[zv]()}setAttenuationColor(t){this[Vb]();const e=this.colorFromRgb(t);for(const t of this[Hv])t.attenuationColor.set(e);this[zv]()}get specularFactor(){return this[Vb](),this[Ob].specularIntensity}get specularTexture(){return this[Vb](),this[Jb].get(Cb.Specular)}get specularColorFactor(){return this[Vb](),this[Ob].specularColor.toArray()}get specularColorTexture(){return this[Vb](),this[Jb].get(Cb.SheenColor)}setSpecularFactor(t){this[Vb]();for(const e of this[Hv])e.specularIntensity=t;this[zv]()}setSpecularColorFactor(t){this[Vb]();const e=this.colorFromRgb(t);for(const t of this[Hv])t.specularColor.set(e);this[zv]()}get iridescenceFactor(){return this[Vb](),this[Ob].iridescence}get iridescenceTexture(){return this[Vb](),this[Jb].get(Cb.Iridescence)}get iridescenceIor(){return this[Vb](),this[Ob].iridescenceIOR}get iridescenceThicknessMinimum(){return this[Vb](),this[Ob].iridescenceThicknessRange[0]}get iridescenceThicknessMaximum(){return this[Vb](),this[Ob].iridescenceThicknessRange[1]}get iridescenceThicknessTexture(){return this[Vb](),this[Jb].get(Cb.IridescenceThickness)}setIridescenceFactor(t){this[Vb]();for(const e of this[Hv])e.iridescence=t;this[zv]()}setIridescenceIor(t){this[Vb]();for(const e of this[Hv])e.iridescenceIOR=t;this[zv]()}setIridescenceThicknessMinimum(t){this[Vb]();for(const e of this[Hv])e.iridescenceThicknessRange[0]=t;this[zv]()}setIridescenceThicknessMaximum(t){this[Vb]();for(const e of this[Hv])e.iridescenceThicknessRange[1]=t;this[zv]()}get anisotropyStrength(){return this[Vb](),this[Ob].anisotropy}get anisotropyRotation(){return this[Vb](),this[Ob].anisotropyRotation}get anisotropyTexture(){return this[Vb](),this[Jb].get(Cb.Anisotropy)}setAnisotropyStrength(t){this[Vb]();for(const e of this[Hv])e.anisotropy=t;this[zv]()}setAnisotropyRotation(t){this[Vb]();for(const e of this[Hv])e.anisotropyRotation=t;this[zv]()}}let Zb=class{constructor(t){this.name="",this.children=new Array,this.name=t}};class ty extends Zb{constructor(t,e,i,n){super(t.name),this.materials=new Map,this.variantToMaterialMap=new Map,this.initialMaterialIdx=0,this.activeMaterialIdx=0,this.mesh=t;const{gltf:s,threeGLTF:r,threeObjectMap:a}=n;this.parser=r.parser,this.modelVariants=i,this.mesh.userData.variantData=i;const o=a.get(t.material);null!=o.materials?this.initialMaterialIdx=this.activeMaterialIdx=o.materials:console.error(`Primitive (${t.name}) missing initial material reference.`);const l=t.userData.associations||{};if(null==l.meshes)return void console.error("Mesh is missing primitive index association");const c=((s.meshes||[])[l.meshes].primitives||[])[l.primitives];if(null!=c){if(null!=c.material)this.materials.set(c.material,e[c.material]);else{const t=e.findIndex((t=>"Default"===t.name));t>=0?this.materials.set(t,e[t]):console.warn("gltfPrimitive has no material!")}if(c.extensions&&c.extensions.KHR_materials_variants){const t=c.extensions.KHR_materials_variants,n=r.parser.json.extensions.KHR_materials_variants.variants;for(const s of t.mappings){const t=e[s.material];this.materials.set(s.material,t);for(const e of s.variants){const{name:s}=n[e];this.variantToMaterialMap.set(e,t),t[jb].add(e),i.has(s)||i.set(s,{name:s,index:e})}}}}else console.error("Mesh primitive definition is missing.")}async setActiveMaterial(t){const e=this.materials.get(t);if(t!==this.activeMaterialIdx){const i=e[Hv],n=await e[zb]();this.mesh.material=null!=n?n:i.values().next().value,this.parser.assignFinalMaterial(this.mesh),i.add(this.mesh.material),this.activeMaterialIdx=t}return this.mesh.material}getActiveMaterial(){return this.materials.get(this.activeMaterialIdx)}getMaterial(t){return this.materials.get(t)}async enableVariant(t){if(null==t)return this.setActiveMaterial(this.initialMaterialIdx);if(null!=this.variantToMaterialMap&&this.modelVariants.has(t)){const e=this.modelVariants.get(t);return this.enableVariantHelper(e.index)}return null}async enableVariantHelper(t){if(null!=this.variantToMaterialMap&&null!=t){const e=this.variantToMaterialMap.get(t);if(null!=e)return this.setActiveMaterial(e.index)}return null}async instantiateVariants(){if(null!=this.variantToMaterialMap)for(const t of this.variantToMaterialMap.keys()){const e=this.mesh.userData.variantMaterials.get(t);if(null!=e.material)continue;const i=await this.enableVariantHelper(t);null!=i&&(e.material=i)}}get variantInfo(){return this.variantToMaterialMap}addVariant(t,e){if(!this.ensureVariantIsUnused(e))return!1;this.modelVariants.has(e)||this.modelVariants.set(e,{name:e,index:this.modelVariants.size});const i=this.modelVariants.get(e).index;return t[jb].add(i),this.variantToMaterialMap.set(i,t),this.materials.set(t.index,t),this.updateVariantUserData(i,t),!0}deleteVariant(t){if(this.variantInfo.has(t)){this.variantInfo.delete(t);const e=this.mesh.userData.variantMaterials;null!=e&&e.delete(t)}}updateVariantUserData(t,e){e[jb].add(t),this.mesh.userData.variantData=this.modelVariants,this.mesh.userData.variantMaterials=this.mesh.userData.variantMaterials||new Map;this.mesh.userData.variantMaterials.set(t,{material:e[Hv].values().next().value,gltfMaterialIndex:e.index})}ensureVariantIsUnused(t){const e=this.modelVariants.get(t);return null==e||!this.variantInfo.has(e.index)||(console.warn(`Primitive cannot add variant '${t}' for this material, it already exists.`),!1)}}
/* @license
 * Copyright 2020 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */var ey,iy,ny,sy,ry,ay;const oy=Symbol("materials"),ly=Symbol("hierarchy"),cy=Symbol("roots"),hy=Symbol("primitives"),uy=Symbol("prepareVariantsForExport"),dy=Symbol("switchVariant"),py=Symbol("materialFromPoint"),Ay=Symbol("nodeFromPoint"),my=Symbol("nodeFromIndex"),gy=Symbol("variantData"),fy=Symbol("availableVariants"),vy=Symbol("modelOnUpdate"),by=Symbol("cloneMaterial");class yy{constructor(t,e,i,n){this.gltf=t,this.gltfElementMap=e,this.mapKey=i,this.doLazyLoad=n}}class xy{constructor(t,e=()=>{}){this[ey]=new Array,this[iy]=new Array,this[ny]=new Array,this[sy]=new Array,this[ry]=()=>{},this[ay]=new Map,this[vy]=e;const{gltf:i,threeGLTF:n,gltfElementMap:s}=t;for(const[t,r]of i.materials.entries()){const a=s.get(r);if(null!=a)this[oy].push(new $b(e,t,!0,this[gy],a,r.name));else{const a=(i.materials||[])[t],o=new Set;s.set(a,o);const l=async()=>{const e=await n.parser.getDependency("material",t);return o.add(e),e};this[oy].push(new $b(e,t,!1,this[gy],o,r.name,new yy(i,s,a,l)))}}const r=new Map,a=new Array;for(const t of n.scene.children)a.push(t);for(;a.length>0;){const e=a.pop();let i=null;e instanceof Ms?(i=new ty(e,this.materials,this[gy],t),this[hy].push(i)):i=new Zb(e.name);const n=r.get(e);null!=n?n.children.push(i):this[cy].push(i),this[ly].push(i);for(const t of e.children)a.push(t),r.set(e,i)}}get materials(){return this[oy]}[(ey=oy,iy=ly,ny=cy,sy=hy,ry=vy,ay=gy,fy)](){const t=Array.from(this[gy].values());return t.sort(((t,e)=>t.index-e.index)),t.map((t=>t.name))}getMaterialByName(t){const e=this[oy].filter((e=>e.name===t));return e.length>0?e[0]:null}[my](t,e){const i=this[ly].find((i=>{if(i instanceof ty){const{meshes:n,primitives:s}=i.mesh.userData.associations;if(n==t&&s==e)return!0}return!1}));return null==i?null:i}[Ay](t){return this[ly].find((e=>{if(e instanceof ty){if(e.mesh===t.object)return!0}return!1}))}[py](t){return this[Ay](t).getActiveMaterial()}async[dy](t){for(const e of this[hy])await e.enableVariant(t);for(const t of this.materials)t[qb](!1);for(const t of this[hy])this.materials[t.getActiveMaterial().index][qb](!0)}async[uy](){const t=new Array;for(const e of this[hy])t.push(e.instantiateVariants());await Promise.all(t)}[by](t,e){const i=this.materials[t];i.isLoaded||console.error("Cloning an unloaded material,\n           call 'material.ensureLoaded() before cloning the material.");const n=i[Hv],s=new Set;for(const[t,i]of n.entries()){const r=i.clone();r.name=e+(n.size>1?"_inst"+t:""),s.add(r)}const r=new $b(this[vy],this[oy].length,!1,this[gy],s,e);return this[oy].push(r),r}createMaterialInstanceForVariant(t,e,i,n=!0){let s=null;for(const n of this[hy]){const r=this[gy].get(i);null!=r&&n.variantInfo.has(r.index)||null!=n.getMaterial(t)&&(this.hasVariant(i)||this.createVariant(i),null==s&&(s=this[by](t,e)),n.addVariant(s,i))}if(n&&null!=s){s[qb](!0),this.materials[t][qb](!1);for(const t of this[hy])t.enableVariant(i)}return s}createVariant(t){this[gy].has(t)?console.warn(`Variant '${t}'' already exists`):this[gy].set(t,{name:t,index:this[gy].size})}hasVariant(t){return this[gy].has(t)}setMaterialToVariant(t,e){if(null!=this[fy]().find((t=>t===e)))if(t<0||t>=this.materials.length)console.error("setMaterialToVariant(): materialIndex is out of bounds.");else for(const i of this[hy]){const n=i.getMaterial(t);null!=n&&i.addVariant(n,e)}else console.warn(`Can't add material to '${e}', the variant does not exist.'`)}updateVariantName(t,e){const i=this[gy].get(t);null!=i&&(i.name=e,this[gy].set(e,i),this[gy].delete(t))}deleteVariant(t){const e=this[gy].get(t);if(null!=e){for(const i of this.materials)i.hasVariant(t)&&i[jb].delete(e.index);for(const t of this[hy])t.deleteVariant(e.index);this[gy].delete(t)}}}
/* @license
 * Copyright 2020 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */var _y=function(t,e,i,n){for(var s,r=arguments.length,a=r<3?e:null===n?n=Object.getOwnPropertyDescriptor(e,i):n,o=t.length-1;o>=0;o--)(s=t[o])&&(a=(r<3?s(a):r>3?s(e,i,a):s(e,i))||a);return r>3&&a&&Object.defineProperty(e,i,a),a};const Ey=Symbol("currentGLTF"),Sy=Symbol("originalGltfJson"),Cy=Symbol("model"),wy=Symbol("getOnUpdateMethod"),Iy=Symbol("buildTexture");
/* @license
 * Copyright 2023 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
class My extends Ms{constructor(){super(void 0,new $n({depthWrite:!1})),this.height=0,this.radius=0,this.resolution=0,this.userData.noHit=!0}get map(){return this.material.map}set map(t){this.material.map=t}isUsable(){return this.height>0&&this.radius>0&&null!=this.geometry&&null!=this.map}updateGeometry(t=this.height,e=this.radius,i=128){t==this.height&&e==this.radius&&i==this.resolution||(this.height=t,this.radius=e,this.resolution=i,t>0&&e>0&&(this.geometry.dispose(),this.geometry=function(t,e,i){const n=new Ka(e,2*i,i);n.scale(1,1,-1);const s=n.getAttribute("position"),r=new Ci;for(let e=0;e<s.count;++e)if(r.fromBufferAttribute(s,e),r.y<0){const i=3*-t/2,n=r.y<i?-t/r.y:1-r.y*r.y/(3*i*i);r.multiplyScalar(n),r.toArray(s.array,3*e)}return s.needsUpdate=!0,n}
/* @license
 * Copyright 2020 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */(t,e,i)))}}const Ty=new Ci,By=new Ci,Ry=new Ci,Dy=new Ze,Ly=new zn,Py=new Si;class Uy extends hA{constructor(t){super(document.createElement("div")),this.normal=new Ci(0,1,0),this.initialized=!1,this.referenceCount=1,this.pivot=document.createElement("div"),this.slot=document.createElement("slot"),this.element.classList.add("annotation-wrapper"),this.slot.name=t.name,this.element.appendChild(this.pivot),this.pivot.appendChild(this.slot),this.updatePosition(t.position),this.updateNormal(t.normal),this.surface=t.surface}get facingCamera(){return!this.element.classList.contains("hide")}show(){this.facingCamera&&this.initialized||this.updateVisibility(!0)}hide(){!this.facingCamera&&this.initialized||this.updateVisibility(!1)}increment(){this.referenceCount++}decrement(){return this.referenceCount>0&&--this.referenceCount,0===this.referenceCount}updatePosition(t){if(null==t)return;const e=Sm(t)[0].terms;for(let t=0;t<3;++t)this.position.setComponent(t,Um(e[t]).number);this.updateMatrixWorld()}updateNormal(t){if(null==t)return;const e=Sm(t)[0].terms;for(let t=0;t<3;++t)this.normal.setComponent(t,e[t].number)}updateSurface(){const{mesh:t,tri:e,bary:i}=this;if(null==t||null==e||null==i)return;t.getVertexPosition(e.x,Ty),t.getVertexPosition(e.y,By),t.getVertexPosition(e.z,Ry),Ty.toArray(Dy.elements,0),By.toArray(Dy.elements,3),Ry.toArray(Dy.elements,6),this.position.copy(i).applyMatrix3(Dy);const n=this.parent;n.worldToLocal(t.localToWorld(this.position)),Ly.set(Ty,By,Ry),Ly.getNormal(this.normal).transformDirection(t.matrixWorld);const s=n.parent;Py.setFromAxisAngle(Ty.set(0,1,0),-s.rotation.y),this.normal.applyQuaternion(Py)}orient(t){this.pivot.style.transform=`rotate(${t}rad)`}updateVisibility(t){this.element.classList.toggle("hide",!t),this.slot.assignedNodes().forEach((e=>{if(e.nodeType!==Node.ELEMENT_NODE)return;const i=e,n=i.dataset.visibilityAttribute;if(null!=n){const e=`data-${n}`;i.toggleAttribute(e,t)}i.dispatchEvent(new CustomEvent("hotspot-visibility",{detail:{visible:t}}))})),this.initialized=!0}}const Fy={name:"HorizontalBlurShader",uniforms:{tDiffuse:{value:null},h:{value:1/512}},vertexShader:"\n\n\t\tvarying vec2 vUv;\n\n\t\tvoid main() {\n\n\t\t\tvUv = uv;\n\t\t\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n\n\t\t}",fragmentShader:"\n\n\t\tuniform sampler2D tDiffuse;\n\t\tuniform float h;\n\n\t\tvarying vec2 vUv;\n\n\t\tvoid main() {\n\n\t\t\tvec4 sum = vec4( 0.0 );\n\n\t\t\tsum += texture2D( tDiffuse, vec2( vUv.x - 4.0 * h, vUv.y ) ) * 0.051;\n\t\t\tsum += texture2D( tDiffuse, vec2( vUv.x - 3.0 * h, vUv.y ) ) * 0.0918;\n\t\t\tsum += texture2D( tDiffuse, vec2( vUv.x - 2.0 * h, vUv.y ) ) * 0.12245;\n\t\t\tsum += texture2D( tDiffuse, vec2( vUv.x - 1.0 * h, vUv.y ) ) * 0.1531;\n\t\t\tsum += texture2D( tDiffuse, vec2( vUv.x, vUv.y ) ) * 0.1633;\n\t\t\tsum += texture2D( tDiffuse, vec2( vUv.x + 1.0 * h, vUv.y ) ) * 0.1531;\n\t\t\tsum += texture2D( tDiffuse, vec2( vUv.x + 2.0 * h, vUv.y ) ) * 0.12245;\n\t\t\tsum += texture2D( tDiffuse, vec2( vUv.x + 3.0 * h, vUv.y ) ) * 0.0918;\n\t\t\tsum += texture2D( tDiffuse, vec2( vUv.x + 4.0 * h, vUv.y ) ) * 0.051;\n\n\t\t\tgl_FragColor = sum;\n\n\t\t}"},Ny={name:"VerticalBlurShader",uniforms:{tDiffuse:{value:null},v:{value:1/512}},vertexShader:"\n\n\t\tvarying vec2 vUv;\n\n\t\tvoid main() {\n\n\t\t\tvUv = uv;\n\t\t\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n\n\t\t}",fragmentShader:"\n\n\t\tuniform sampler2D tDiffuse;\n\t\tuniform float v;\n\n\t\tvarying vec2 vUv;\n\n\t\tvoid main() {\n\n\t\t\tvec4 sum = vec4( 0.0 );\n\n\t\t\tsum += texture2D( tDiffuse, vec2( vUv.x, vUv.y - 4.0 * v ) ) * 0.051;\n\t\t\tsum += texture2D( tDiffuse, vec2( vUv.x, vUv.y - 3.0 * v ) ) * 0.0918;\n\t\t\tsum += texture2D( tDiffuse, vec2( vUv.x, vUv.y - 2.0 * v ) ) * 0.12245;\n\t\t\tsum += texture2D( tDiffuse, vec2( vUv.x, vUv.y - 1.0 * v ) ) * 0.1531;\n\t\t\tsum += texture2D( tDiffuse, vec2( vUv.x, vUv.y ) ) * 0.1633;\n\t\t\tsum += texture2D( tDiffuse, vec2( vUv.x, vUv.y + 1.0 * v ) ) * 0.1531;\n\t\t\tsum += texture2D( tDiffuse, vec2( vUv.x, vUv.y + 2.0 * v ) ) * 0.12245;\n\t\t\tsum += texture2D( tDiffuse, vec2( vUv.x, vUv.y + 3.0 * v ) ) * 0.0918;\n\t\t\tsum += texture2D( tDiffuse, vec2( vUv.x, vUv.y + 4.0 * v ) ) * 0.051;\n\n\t\t\tgl_FragColor = sum;\n\n\t\t}"};function Oy(t,e,i){return(1-i)*t+i*e}
/* @license
 * Copyright 2022 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */class Qy extends Tn{constructor(t,e,i){super(),this.camera=new Ho,this.renderTarget=null,this.renderTargetBlur=null,this.depthMaterial=new Za,this.horizontalBlurMaterial=new Us(Fy),this.verticalBlurMaterial=new Us(Ny),this.intensity=0,this.softness=1,this.boundingBox=new Mi,this.size=new Ci,this.maxDimension=0,this.isAnimated=!1,this.needsUpdate=!1;const{camera:n}=this;n.rotation.x=Math.PI/2,n.left=-.5,n.right=.5,n.bottom=-.5,n.top=.5,this.add(n);const s=new Xa,r=new $n({opacity:1,transparent:!0,side:1});this.floor=new Ms(s,r),this.floor.userData.noHit=!0,n.add(this.floor),this.blurPlane=new Ms(s),this.blurPlane.visible=!1,n.add(this.blurPlane),t.target.add(this),this.depthMaterial.onBeforeCompile=function(t){t.fragmentShader=t.fragmentShader.replace("gl_FragColor = vec4( vec3( 1.0 - fragCoordZ ), opacity );","gl_FragColor = vec4( vec3( 0.0 ), ( 1.0 - fragCoordZ ) * opacity );")},this.depthMaterial.side=2,this.horizontalBlurMaterial.depthTest=!1,this.verticalBlurMaterial.depthTest=!1,this.setScene(t,e,i)}setScene(t,e,i){const{boundingBox:n,size:s,rotation:r,position:a}=this;if(this.isAnimated=t.animationNames.length>0,this.boundingBox.copy(t.boundingBox),this.size.copy(t.size),this.maxDimension=Math.max(s.x,s.y,s.z)*(this.isAnimated?2:1),this.boundingBox.getCenter(a),"back"===i){const{min:t,max:e}=n;[t.y,t.z]=[t.z,t.y],[e.y,e.z]=[e.z,e.y],[s.y,s.z]=[s.z,s.y],r.x=Math.PI/2,r.y=Math.PI}else r.x=0,r.y=0;if(this.isAnimated){const t=n.min.y,e=n.max.y;s.y=this.maxDimension,n.expandByVector(s.subScalar(this.maxDimension).multiplyScalar(-.5)),n.min.y=t,n.max.y=e,s.set(this.maxDimension,e-t,this.maxDimension)}"bottom"===i?a.y=n.min.y:a.z=n.min.y,this.setSoftness(e)}setSoftness(t){this.softness=t;const{size:e,camera:i}=this,n=this.isAnimated?2:1,s=n*Math.pow(2,9-3*t);this.setMapSize(s);const r=e.y/2,a=e.y*n;i.near=0,i.far=Oy(a,r,t),this.depthMaterial.opacity=1/t,i.updateProjectionMatrix(),this.setIntensity(this.intensity),this.setOffset(0)}setMapSize(t){const{size:e}=this;this.isAnimated&&(t*=2);const i=Math.floor(e.x>e.z?t:t*e.x/e.z),n=Math.floor(e.x>e.z?t*e.z/e.x:t),s=10+i,r=10+n;if(null==this.renderTarget||this.renderTarget.width===s&&this.renderTarget.height===r||(this.renderTarget.dispose(),this.renderTarget=null,this.renderTargetBlur.dispose(),this.renderTargetBlur=null),null==this.renderTarget){const t={format:It};this.renderTarget=new xi(s,r,t),this.renderTargetBlur=new xi(s,r,t),this.floor.material.map=this.renderTarget.texture}this.camera.scale.set(e.x*(1+10/i),e.z*(1+10/n),1),this.needsUpdate=!0}setIntensity(t){this.intensity=t,t>0?(this.visible=!0,this.floor.visible=!0,this.floor.material.opacity=t*Oy(.3,1,this.softness*this.softness)):(this.visible=!1,this.floor.visible=!1)}getIntensity(){return this.intensity}setOffset(t){this.floor.position.z=-t+this.gap()}gap(){return.001*this.maxDimension}render(t,e){e.overrideMaterial=this.depthMaterial;const i=t.getClearAlpha();t.setClearAlpha(0),this.floor.visible=!1;const n=t.xr.enabled;t.xr.enabled=!1;const s=t.getRenderTarget();t.setRenderTarget(this.renderTarget),t.render(e,this.camera),e.overrideMaterial=null,this.floor.visible=!0,this.blurShadow(t),t.xr.enabled=n,t.setRenderTarget(s),t.setClearAlpha(i)}blurShadow(t){const{camera:e,horizontalBlurMaterial:i,verticalBlurMaterial:n,renderTarget:s,renderTargetBlur:r,blurPlane:a}=this;a.visible=!0,a.material=i,i.uniforms.h.value=1/this.renderTarget.width,i.uniforms.tDiffuse.value=this.renderTarget.texture,t.setRenderTarget(r),t.render(a,e),a.material=n,n.uniforms.v.value=1/this.renderTarget.height,n.uniforms.tDiffuse.value=this.renderTargetBlur.texture,t.setRenderTarget(s),t.render(a,e),a.visible=!1}dispose(){null!=this.renderTarget&&this.renderTarget.dispose(),null!=this.renderTargetBlur&&this.renderTargetBlur.dispose(),this.depthMaterial.dispose(),this.horizontalBlurMaterial.dispose(),this.verticalBlurMaterial.dispose(),this.floor.material.dispose(),this.floor.geometry.dispose(),this.blurPlane.geometry.dispose(),this.removeFromParent()}}
/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */const ky=new Ci,Gy=new Ci,Hy=new Ci,zy=new class{constructor(t,e,i=0,n=1/0){this.ray=new tn(t,e),this.near=i,this.far=n,this.camera=null,this.layers=new pn,this.params={Mesh:{},Line:{threshold:1},LOD:{},Points:{threshold:1},Sprite:{}}}set(t,e){this.ray.set(t,e)}setFromCamera(t,e){e.isPerspectiveCamera?(this.ray.origin.setFromMatrixPosition(e.matrixWorld),this.ray.direction.set(t.x,t.y,.5).unproject(e).sub(this.ray.origin).normalize(),this.camera=e):e.isOrthographicCamera?(this.ray.origin.set(t.x,t.y,(e.near+e.far)/(e.near-e.far)).unproject(e),this.ray.direction.set(0,0,-1).transformDirection(e.matrixWorld),this.camera=e):console.error("THREE.Raycaster: Unsupported camera type: "+e.type)}setFromXRController(t){return ol.identity().extractRotation(t.matrixWorld),this.ray.origin.setFromMatrixPosition(t.matrixWorld),this.ray.direction.set(0,0,-1).applyMatrix4(ol),this}intersectObject(t,e=!0,i=[]){return cl(t,this,i,e),i.sort(ll),i}intersectObjects(t,e=!0,i=[]){for(let n=0,s=t.length;n<s;n++)cl(t[n],this,i,e);return i.sort(ll),i}},Vy=new Ci,Wy=new $e;class qy extends Xs{constructor({canvas:t,element:e,width:i,height:n}){super(),this.annotationRenderer=new gA,this.effectRenderer=null,this.schemaElement=document.createElement("script"),this.width=1,this.height=1,this.aspect=1,this.scaleStep=0,this.renderCount=0,this.externalRenderer=null,this.appendedAnimations=[],this.markedAnimations=[],this.camera=new ks(45,1,.1,100),this.xrCamera=null,this.url=null,this.pivot=new Tn,this.target=new Tn,this.animationNames=[],this.boundingBox=new Mi,this.boundingSphere=new qi,this.size=new Ci,this.idealAspect=0,this.framedFoVDeg=0,this.shadow=null,this.shadowIntensity=0,this.shadowSoftness=1,this.bakedShadows=new Set,this.exposure=1,this.toneMapping=7,this.canScale=!0,this.isDirty=!1,this.goalTarget=new Ci,this.targetDamperX=new vm,this.targetDamperY=new vm,this.targetDamperZ=new vm,this._currentGLTF=null,this._model=null,this.cancelPendingSourceChange=null,this.animationsByName=new Map,this.currentAnimationAction=null,this.groundedSkybox=new My,this.name="ModelScene",this.element=e,this.canvas=t,this.camera=new ks(45,1,.1,100),this.camera.name="MainCamera",this.add(this.pivot),this.pivot.name="Pivot",this.pivot.add(this.target),this.setSize(i,n),this.target.name="Target",this.mixer=new al(this.target);const{domElement:s}=this.annotationRenderer,{style:r}=s;r.display="none",r.pointerEvents="none",r.position="absolute",r.top="0",this.element.shadowRoot.querySelector(".default").appendChild(s),this.schemaElement.setAttribute("type","application/ld+json")}get context(){return this.canvas.getContext("2d")}getCamera(){return null!=this.xrCamera?this.xrCamera:this.camera}queueRender(){this.isDirty=!0}shouldRender(){return this.isDirty}hasRendered(){this.isDirty=!1}forceRescale(){this.scaleStep=-1,this.queueRender()}async setObject(t){this.reset(),this._model=t,this.target.add(t),await this.setupScene()}async setSource(t,e=()=>{}){if(!t||t===this.url)return void e(1);if(this.reset(),this.url=t,null!=this.externalRenderer){const t=await this.externalRenderer.load(e);return this.boundingSphere.radius=t.framedRadius,void(this.idealAspect=t.fieldOfViewAspect)}let i;null!=this.cancelPendingSourceChange&&(this.cancelPendingSourceChange(),this.cancelPendingSourceChange=null);try{i=await new Promise((async(i,n)=>{this.cancelPendingSourceChange=()=>n();try{i(await this.element[Nx].loader.load(t,this.element,e))}catch(t){n(t)}}))}catch(t){if(null==t)return;throw t}this.cancelPendingSourceChange=null,this.reset(),this.url=t,this._currentGLTF=i,null!=i&&(this._model=i.scene,this.target.add(i.scene));const{animations:n}=i,s=new Map,r=[];for(const t of n)s.set(t.name,t),r.push(t.name);this.animations=n,this.animationsByName=s,this.animationNames=r,await this.setupScene()}async setupScene(){this.applyTransform(),this.updateBoundingBox(),await this.updateFraming(),this.updateShadow(),this.setShadowIntensity(this.shadowIntensity),this.setGroundedSkybox()}reset(){this.url=null,this.renderCount=0,this.queueRender(),null!=this.shadow&&this.shadow.setIntensity(0),this.bakedShadows.clear();const{_model:t}=this;null!=t&&(t.removeFromParent(),this._model=null);const e=this._currentGLTF;null!=e&&(e.dispose(),this._currentGLTF=null),null!=this.currentAnimationAction&&(this.currentAnimationAction.stop(),this.currentAnimationAction=null),this.mixer.stopAllAction(),this.mixer.uncacheRoot(this)}dispose(){this.reset(),null!=this.shadow&&(this.shadow.dispose(),this.shadow=null),this.element[Ey]=null,this.element[Sy]=null,this.element[Cy]=null}get currentGLTF(){return this._currentGLTF}setSize(t,e){if(this.width!==t||this.height!==e){if(this.width=Math.max(t,1),this.height=Math.max(e,1),this.annotationRenderer.setSize(t,e),this.aspect=this.width/this.height,null!=this.externalRenderer){const i=window.devicePixelRatio;this.externalRenderer.resize(t*i,e*i)}this.queueRender()}}markBakedShadow(t){t.userData.noHit=!0,this.bakedShadows.add(t)}unmarkBakedShadow(t){t.userData.noHit=!1,t.visible=!0,this.bakedShadows.delete(t),this.boundingBox.expandByObject(t)}findBakedShadows(t){const e=new Mi;t.traverse((t=>{const i=t;if(!i.material)return;if(!i.material.transparent)return;e.setFromObject(i);const n=e.getSize(Vy),s=Math.min(n.x,n.y,n.z);Math.max(n.x,n.y,n.z)<100*s||this.markBakedShadow(i)}))}checkBakedShadows(){const{min:t,max:e}=this.boundingBox,i=new Mi;this.boundingBox.getSize(this.size);for(const n of this.bakedShadows)i.setFromObject(n),i.min.y<t.y+this.size.y/100&&i.min.x<=t.x&&i.max.x>=e.x&&i.min.z<=t.z&&i.max.z>=e.z||i.min.z<t.z+this.size.z/100&&i.min.x<=t.x&&i.max.x>=e.x&&i.min.y<=t.y&&i.max.y>=e.y||this.unmarkBakedShadow(n)}applyTransform(){const{model:t}=this;if(null==t)return;const e=Sm(this.element.orientation)[0].terms,i=Um(e[0]).number,n=Um(e[1]).number,s=Um(e[2]).number;t.quaternion.setFromEuler(new dn(n,s,i,"YXZ"));const r=Sm(this.element.scale)[0].terms;t.scale.set(r[0].number,r[1].number,r[2].number)}updateBoundingBox(){const{model:t}=this;if(null==t)return;this.target.remove(t),this.findBakedShadows(t);const e=(t,e)=>t.expandByPoint(e);this.setBakedShadowVisibility(!1),this.boundingBox=fA(t,e,new Mi),this.boundingBox.isEmpty()&&(this.setBakedShadowVisibility(!0),this.bakedShadows.forEach((t=>this.unmarkBakedShadow(t))),this.boundingBox=fA(t,e,new Mi)),this.checkBakedShadows(),this.setBakedShadowVisibility(),this.boundingBox.getSize(this.size),this.target.add(t)}async updateFraming(){const{model:t}=this;if(null==t)return;this.target.remove(t),this.setBakedShadowVisibility(!1);const{center:e}=this.boundingSphere;this.element.requestUpdate("cameraTarget"),await this.element.updateComplete,e.copy(this.getTarget());this.boundingSphere.radius=Math.sqrt(fA(t,((t,i)=>Math.max(t,e.distanceToSquared(i))),0));this.idealAspect=fA(t,((t,i)=>{i.sub(e);const n=Math.sqrt(i.x*i.x+i.z*i.z);return Math.max(t,n/(this.idealCameraDistance()-Math.abs(i.y)))}),0)/Math.tan(this.framedFoVDeg/2*Math.PI/180),this.setBakedShadowVisibility(),this.target.add(t)}setBakedShadowVisibility(t=this.shadowIntensity<=0){for(const e of this.bakedShadows)e.visible=t}idealCameraDistance(){const t=this.framedFoVDeg/2*Math.PI/180;return this.boundingSphere.radius/Math.sin(t)}adjustedFoV(t){const e=Math.tan(t/2*Math.PI/180)*Math.max(1,this.idealAspect/this.aspect);return 2*Math.atan(e)*180/Math.PI}getNDC(t,e){if(null!=this.xrCamera)Wy.set(t/window.screen.width,e/window.screen.height);else{const i=this.element.getBoundingClientRect();Wy.set((t-i.x)/this.width,(e-i.y)/this.height)}return Wy.multiplyScalar(2).subScalar(1),Wy.y*=-1,Wy}getSize(){return{width:this.width,height:this.height}}setEnvironmentAndSkybox(t,e){this.element[Nx].arRenderer.presentedScene!==this&&(this.environment=t,this.setBackground(e),this.queueRender())}setBackground(t){this.groundedSkybox.map=t,this.groundedSkybox.isUsable()?(this.target.add(this.groundedSkybox),this.background=null):(this.target.remove(this.groundedSkybox),this.background=t)}farRadius(){return this.boundingSphere.radius*(null!=this.groundedSkybox.parent?10:1)}setGroundedSkybox(){const t=Sm(this.element.skyboxHeight)[0].terms[0],e=Um(t).number,i=10*this.boundingSphere.radius;this.groundedSkybox.updateGeometry(e,i),this.groundedSkybox.position.y=e-(this.shadow?2*this.shadow.gap():0),this.setBackground(this.groundedSkybox.map)}setTarget(t,e,i){this.goalTarget.set(-t,-e,-i)}setTargetDamperDecayTime(t){this.targetDamperX.setDecayTime(t),this.targetDamperY.setDecayTime(t),this.targetDamperZ.setDecayTime(t)}getTarget(){return this.goalTarget.clone().multiplyScalar(-1)}getDynamicTarget(){return this.target.position.clone().multiplyScalar(-1)}jumpToGoal(){this.updateTarget(1e4)}updateTarget(t){const e=this.goalTarget,i=this.target.position;if(e.equals(i))return!1;{const n=this.boundingSphere.radius/10;let{x:s,y:r,z:a}=i;return s=this.targetDamperX.update(s,e.x,t,n),r=this.targetDamperY.update(r,e.y,t,n),a=this.targetDamperZ.update(a,e.z,t,n),this.groundedSkybox.position.x=-s,this.groundedSkybox.position.z=-a,this.target.position.set(s,r,a),this.target.updateMatrixWorld(),this.queueRender(),!0}}pointTowards(t,e){const{x:i,z:n}=this.position;this.yaw=Math.atan2(t-i,e-n)}get model(){return this._model}set yaw(t){this.pivot.rotation.y=t,this.groundedSkybox.rotation.y=-t,this.queueRender()}get yaw(){return this.pivot.rotation.y}set animationTime(t){this.mixer.setTime(t),this.queueShadowRender()}get animationTime(){if(null!=this.currentAnimationAction){const t=Math.max(this.currentAnimationAction._loopCount,0);return this.currentAnimationAction.loop!==Ae||1&~t?this.currentAnimationAction.time:this.duration-this.currentAnimationAction.time}return 0}set animationTimeScale(t){this.mixer.timeScale=t}get animationTimeScale(){return this.mixer.timeScale}get duration(){return null!=this.currentAnimationAction&&this.currentAnimationAction.getClip()?this.currentAnimationAction.getClip().duration:0}get hasActiveAnimation(){return null!=this.currentAnimationAction}playAnimation(t=null,e=0,i=2201,n=1/0){if(null==this._currentGLTF)return;const{animations:s}=this;if(null==s||0===s.length)return;let r=null;if(null!=t&&(r=this.animationsByName.get(t),null==r)){const e=parseInt(t);!isNaN(e)&&e>=0&&e<s.length&&(r=s[e])}null==r&&(r=s[0]);try{const{currentAnimationAction:t}=this,s=this.mixer.clipAction(r,this);s.timeScale!=this.element.timeScale&&(s.timeScale=this.element.timeScale),this.currentAnimationAction=s,this.element.paused?this.mixer.stopAllAction():(s.paused=!1,null!=t&&s!==t?s.crossFadeFrom(t,e,!1):this.animationTimeScale>0&&this.animationTime==this.duration&&(this.animationTime=0)),s.setLoop(i,n),s.enabled=!0,s.clampWhenFinished=!0,s.play()}catch(t){console.error(t)}}appendAnimation(t="",e=2201,i=1/0,n=1,s=1,r=!1,a=!1,o=!0,l=null,c=!1){if(null==this._currentGLTF||t===this.element.animationName)return;const{animations:h}=this;if(null==h||0===h.length)return;let u=null;if(t&&(u=this.animationsByName.get(t)),null!=u){"string"==typeof i?isNaN(i)?(i=1/0,console.warn("Invalid repetitionCount value, repetitionCount is set to Infinity")):i=Math.max(parseInt(i),1):"number"==typeof i&&i<1&&(i=1),1===i&&e!==de&&(e=de),"string"==typeof n&&(isNaN(n)?(n=1,console.warn("Invalid weight value, weight is set to 1")):n=parseFloat(n)),"string"==typeof s&&(isNaN(s)?(s=1,console.warn("Invalid timeScale value, timeScale is set to 1")):s=parseFloat(s)),"string"==typeof r&&("true"===r.toLowerCase().trim()?r=!0:"false"===r.toLowerCase().trim()?r=!1:isNaN(r)?(r=!1,console.warn("Invalid fade value, fade is set to false")):r=parseFloat(r)),"string"==typeof a&&("true"===a.toLowerCase().trim()?a=!0:"false"===a.toLowerCase().trim()?a=!1:isNaN(a)?(a=!1,console.warn("Invalid warp value, warp is set to false")):a=parseFloat(a)),"string"==typeof l&&(isNaN(l)||(l=parseFloat(l)));try{const h=this.mixer.existingAction(u)||this.mixer.clipAction(u,this),d=h.timeScale;c&&this.appendedAnimations.includes(t)&&(this.markedAnimations.map((t=>t.name)).includes(t)||this.markedAnimations.push({name:t,loopMode:e,repetitionCount:i})),"number"==typeof l&&(h.time=Math.min(Math.max(l,0),u.duration)),"boolean"==typeof r&&r?h.fadeIn(1.25):"number"==typeof r?h.fadeIn(Math.max(r,0)):n>=0&&(h.weight=Math.min(Math.max(n,0),1)),"boolean"==typeof a&&a?h.warp(o?d:0,s,1.25):"number"==typeof a?h.warp(o?d:0,s,Math.max(a,0)):h.timeScale=s,h.isRunning()||(h.time==u.duration&&h.stop(),h.setLoop(e,i),h.paused=!1,h.enabled=!0,h.clampWhenFinished=!0,h.play()),this.appendedAnimations.includes(t)||this.element[Dx].appendedAnimations.push(t)}catch(t){console.error(t)}}}detachAnimation(t="",e=!0){if(null==this._currentGLTF||t===this.element.animationName)return;const{animations:i}=this;if(null==i||0===i.length)return;let n=null;if(t&&(n=this.animationsByName.get(t)),null!=n){"string"==typeof e&&("true"===e.toLowerCase().trim()?e=!0:"false"===e.toLowerCase().trim()?e=!1:isNaN(e)?(e=!0,console.warn("Invalid fade value, fade is set to true")):e=parseFloat(e));try{const i=this.mixer.existingAction(n)||this.mixer.clipAction(n,this);"boolean"==typeof e&&e?i.fadeOut(1.5):"number"==typeof e?i.fadeOut(Math.max(e,0)):i.stop();const s=this.element[Dx].appendedAnimations.filter((e=>e!==t));this.element[Dx].appendedAnimations=s}catch(t){console.error(t)}}}updateAnimationLoop(t="",e=2201,i=1/0){if(null==this._currentGLTF||t===this.element.animationName)return;const{animations:n}=this;if(null==n||0===n.length)return;let s=null;if(t&&(s=this.animationsByName.get(t)),null!=s)try{const t=this.mixer.existingAction(s)||this.mixer.clipAction(s,this);t.stop(),t.setLoop(e,i),t.play()}catch(t){console.error(t)}}stopAnimation(){this.currentAnimationAction=null,this.mixer.stopAllAction()}updateAnimation(t){this.mixer.update(t),this.queueShadowRender()}subscribeMixerEvent(t,e){this.mixer.addEventListener(t,e)}updateShadow(){const t=this.shadow;if(null!=t){const e="wall"===this.element.arPlacement?"back":"ceiling"===this.element.arPlacement?"top":"bottom";t.setScene(this,this.shadowSoftness,e),t.needsUpdate=!0}}renderShadow(t){const e=this.shadow;null!=e&&1==e.needsUpdate&&(e.render(t,this),e.needsUpdate=!1)}queueShadowRender(){null!=this.shadow&&(this.shadow.needsUpdate=!0)}setShadowIntensity(t){if(this.shadowIntensity=t,null!=this._currentGLTF&&(this.setBakedShadowVisibility(),!(t<=0&&null==this.shadow))){if(null==this.shadow){const t="wall"===this.element.arPlacement?"back":"bottom";this.shadow=new Qy(this,this.shadowSoftness,t)}this.shadow.setIntensity(t)}}setShadowSoftness(t){this.shadowSoftness=t;const e=this.shadow;null!=e&&e.setSoftness(t)}setShadowOffset(t){const e=this.shadow;null!=e&&e.setOffset(t)}getHit(t=this){return zy.intersectObject(t,!0).find((t=>t.object.visible&&!t.object.userData.noHit))}hitFromController(t,e=this){return zy.setFromXRController(t),this.getHit(e)}hitFromPoint(t,e=this){return zy.setFromCamera(t,this.getCamera()),this.getHit(e)}positionAndNormalFromPoint(t,e=this){var i;const n=this.hitFromPoint(t,e);if(null==n)return null;return{position:n.point,normal:null!=n.face?n.face.normal.clone().applyNormalMatrix((new Ze).getNormalMatrix(n.object.matrixWorld)):zy.ray.direction.clone().multiplyScalar(-1),uv:null!==(i=n.uv)&&void 0!==i?i:null}}surfaceFromPoint(t,e=this){const i=this.element.model;if(null==i)return null;const n=this.hitFromPoint(t,e);if(null==n||null==n.face)return null;const s=i[Ay](n),{meshes:r,primitives:a}=s.mesh.userData.associations,o=new Ci,l=new Ci,c=new Ci,{a:h,b:u,c:d}=n.face,p=n.object;p.getVertexPosition(h,o),p.getVertexPosition(u,l),p.getVertexPosition(d,c);const A=new zn(o,l,c),m=new Ci;return A.getBarycoord(p.worldToLocal(n.point),m),`${r} ${a} ${h} ${u} ${d} ${m.x.toFixed(3)} ${m.y.toFixed(3)} ${m.z.toFixed(3)}`}addHotspot(t){this.target.add(t),this.annotationRenderer.domElement.appendChild(t.element),this.updateSurfaceHotspot(t)}removeHotspot(t){this.target.remove(t)}forHotspots(t){const{children:e}=this.target;for(let i=0,n=e.length;i<n;i++){const n=e[i];n instanceof Uy&&t(n)}}updateSurfaceHotspot(t){if(null==t.surface||null==this.element.model)return;const e=Sm(t.surface)[0].terms;if(8!=e.length)return void console.warn(t.surface+" does not have exactly 8 numbers.");const i=this.element.model[my](e[0].number,e[1].number);if(null==i)return void console.warn(t.surface+" does not match a node/primitive in this glTF! Skipping this hotspot.");const n=i.mesh.geometry.attributes.position.count,s=new Ci(e[2].number,e[3].number,e[4].number);if(s.x>=n||s.y>=n||s.z>=n)return void console.warn(t.surface+" vertex indices out of range in this glTF! Skipping this hotspot.");const r=new Ci(e[5].number,e[6].number,e[7].number);t.mesh=i.mesh,t.tri=s,t.bary=r,t.updateSurface()}animateSurfaceHotspots(){this.element.paused||this.forHotspots((t=>{t.updateSurface()}))}updateHotspotsVisibility(t){this.forHotspots((e=>{ky.copy(t),Gy.setFromMatrixPosition(e.matrixWorld),ky.sub(Gy),Hy.copy(e.normal).transformDirection(this.target.matrixWorld),ky.dot(Hy)<0?e.hide():e.show()}))}orientHotspots(t){this.forHotspots((e=>{e.orient(t)}))}setHotspotsVisibility(t){this.forHotspots((e=>{e.visible=t}))}updateSchema(t){var e;const{schemaElement:i,element:n}=this,{alt:s,poster:r,iosSrc:a}=n;if(null!=t){const n=[{"@type":"MediaObject",contentUrl:t,encodingFormat:"gltf"===(null===(e=t.split(".").pop())||void 0===e?void 0:e.toLowerCase())?"model/gltf+json":"model/gltf-binary"}];a&&n.push({"@type":"MediaObject",contentUrl:a,encodingFormat:"model/vnd.usdz+zip"});const o={"@context":"http://schema.org/","@type":"3DModel",image:null!=r?r:void 0,name:null!=s?s:void 0,encoding:n};i.textContent=JSON.stringify(o),document.head.appendChild(i)}else null!=i.parentElement&&i.parentElement.removeChild(i)}}
/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */class jy extends EventTarget{constructor(){super(...arguments),this.ongoingActivities=new Set,this.totalProgress=0}get ongoingActivityCount(){return this.ongoingActivities.size}beginActivity(t){const e={progress:0,completed:!1};return this.ongoingActivities.add(e),1===this.ongoingActivityCount&&this.announceTotalProgress(e,0,t),i=>{let n;return n=Math.max(Ku(i,0,1),e.progress),n!==e.progress&&this.announceTotalProgress(e,n,t),e.progress}}announceTotalProgress(t,e,i){let n=0,s=0;1==e&&(t.completed=!0);for(const t of this.ongoingActivities){const{progress:e}=t;n+=1-e,t.completed&&s++}const r=t.progress;t.progress=e,this.totalProgress+=(e-r)*(1-this.totalProgress)/n;const a=s===this.ongoingActivityCount?1:this.totalProgress;this.dispatchEvent(new CustomEvent("progress",{detail:{totalProgress:a,reason:i}})),s===this.ongoingActivityCount&&(this.totalProgress=0,this.ongoingActivities.clear())}}
/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */var Xy,Yy,Ky,Jy,$y,Zy,tx,ex,ix,nx,sx,rx,ax,ox=function(t,e,i,n){for(var s,r=arguments.length,a=r<3?e:null===n?n=Object.getOwnPropertyDescriptor(e,i):n,o=t.length-1;o>=0;o--)(s=t[o])&&(a=(r<3?s(a):r>3?s(e,i,a):s(e,i))||a);return r>3&&a&&Object.defineProperty(e,i,a),a};const lx=document.createElement("canvas"),cx=Symbol("fallbackResizeHandler"),hx=Symbol("defaultAriaLabel"),ux=Symbol("resizeObserver"),dx=Symbol("clearModelTimeout"),px=Symbol("onContextLost"),Ax=Symbol("loaded"),mx=Symbol("status"),gx=Symbol("onFocus"),fx=Symbol("onBlur"),vx=Symbol("updateSize"),bx=Symbol("intersectionObserver"),yx=Symbol("isElementInViewport"),xx=Symbol("announceModelVisibility"),_x=Symbol("ariaLabel"),Ex=Symbol("altDefaulted"),Sx=Symbol("statusElement"),Cx=Symbol("updateStatus"),wx=Symbol("loadedTime"),Ix=Symbol("updateSource"),Mx=Symbol("markLoaded"),Tx=Symbol("container"),Bx=Symbol("input"),Rx=Symbol("canvas"),Dx=Symbol("scene"),Lx=Symbol("needsRender"),Px=Symbol("tick"),Ux=Symbol("onModelLoad"),Fx=Symbol("onResize"),Nx=Symbol("renderer"),Ox=Symbol("progressTracker"),Qx=Symbol("getLoaded"),kx=Symbol("getModelIsVisible"),Gx=Symbol("shouldAttemptPreload"),Hx=t=>({x:t.x,y:t.y,z:t.z,toString(){return`${this.x}m ${this.y}m ${this.z}m`}}),zx=t=>({u:t.x,v:t.y,toString(){return`${this.u} ${this.v}`}});class Vx extends y{static get is(){return"model-viewer"}static set modelCacheSize(t){cA[oA].evictionThreshold=t}static get modelCacheSize(){return cA[oA].evictionThreshold}static set minimumRenderScale(t){t>1&&console.warn("<model-viewer> minimumRenderScale has been clamped to a maximum value of 1."),t<=0&&console.warn("<model-viewer> minimumRenderScale has been clamped to a minimum value of 0.25."),Gv.singleton.minScale=t}static get minimumRenderScale(){return Gv.singleton.minScale}get loaded(){return this[Qx]()}get[(Xy=yx,Yy=Ax,Ky=wx,Jy=mx,$y=dx,Zy=cx,tx=xx,ex=ux,ix=bx,nx=Ox,Nx)](){return Gv.singleton}get modelIsVisible(){return this[kx]()}constructor(){super(),this.alt=null,this.src=null,this.withCredentials=!1,this.generateSchema=!1,this[Xy]=!1,this[Yy]=!1,this[Ky]=0,this[Jy]="",this[$y]=null,this[Zy]=Yu((()=>{const t=this.getBoundingClientRect();this[vx](t)}),50),this[tx]=Yu((t=>{const e=this.modelIsVisible;e!==t&&this.dispatchEvent(new CustomEvent("model-visibility",{detail:{visible:e}}))}),0),this[ex]=null,this[ix]=null,this[nx]=new jy,this[sx]=()=>{this[Sx].textContent=this[mx]},this[rx]=()=>{this[Sx].textContent=""},this[ax]=t=>{this.dispatchEvent(new CustomEvent("error",{detail:{type:"webglcontextlost",sourceError:t.sourceEvent}}))},this.attachShadow({mode:"open"});const t=this.shadowRoot;let e,i;if((t=>{Ru(nd,t)})(t),this[Tx]=t.querySelector(".container"),this[Bx]=t.querySelector(".userInput"),this[Rx]=t.querySelector("canvas"),this[Sx]=t.querySelector("#status"),this[hx]=this[Bx].getAttribute("aria-label"),this.isConnected){const t=this.getBoundingClientRect();e=t.width,i=t.height}else e=300,i=150;this[Dx]=new qy({canvas:this[Rx],element:this,width:e,height:i}),Promise.resolve().then((()=>{this[vx](this.getBoundingClientRect())})),Fu&&(this[ux]=new ResizeObserver((t=>{if(!this[Nx].isPresenting)for(let e of t)e.target===this&&this[vx](e.contentRect)}))),Nu?this[bx]=new IntersectionObserver((t=>{for(let e of t)if(e.target===this){const t=this.modelIsVisible;this[yx]=e.isIntersecting,this[xx](t),this[yx]&&!this.loaded&&this[Ix]()}}),{root:null,rootMargin:"0px",threshold:1e-5}):this[yx]=!0}connectedCallback(){super.connectedCallback&&super.connectedCallback(),Fu?this[ux].observe(this):self.addEventListener("resize",this[cx]),Nu&&this[bx].observe(this),this.addEventListener("focus",this[gx]),this.addEventListener("blur",this[fx]);const t=this[Nx];t.addEventListener("contextlost",this[px]),t.registerScene(this[Dx]),null!=this[dx]&&(self.clearTimeout(this[dx]),this[dx]=null,this.requestUpdate("src",null))}disconnectedCallback(){super.disconnectedCallback&&super.disconnectedCallback(),Fu?this[ux].unobserve(this):self.removeEventListener("resize",this[cx]),Nu&&this[bx].unobserve(this),this.removeEventListener("focus",this[gx]),this.removeEventListener("blur",this[fx]);const t=this[Nx];t.removeEventListener("contextlost",this[px]),t.unregisterScene(this[Dx]),this[dx]=self.setTimeout((()=>{this[Dx].dispose(),this[dx]=null}),10)}updated(t){super.updated(t),t.has("src")&&(null==this.src?(this[Ax]=!1,this[wx]=0,this[Dx].reset()):this.src!==this[Dx].url&&(this[Ax]=!1,this[wx]=0,this[Ix]())),t.has("alt")&&this[Bx].setAttribute("aria-label",this[_x]),t.has("generateSchema")&&(this.generateSchema?this[Dx].updateSchema(this.src):this[Dx].updateSchema(null))}toDataURL(t,e){return this[Nx].displayCanvas(this[Dx]).toDataURL(t,e)}async toBlob(t){const e=t?t.mimeType:void 0,i=t?t.qualityArgument:void 0,n=t?t.idealAspect:void 0,{width:s,height:r,idealAspect:a,aspect:o}=this[Dx],{dpr:l,scaleFactor:c}=this[Nx];let h=s*c*l,u=r*c*l,d=0,p=0;if(!0===n)if(a>o){const t=u;u=Math.round(h/a),p=(t-u)/2}else{const t=h;h=Math.round(u*a),d=(t-h)/2}lx.width=h,lx.height=u;try{return new Promise((async(t,n)=>{lx.getContext("2d").drawImage(this[Nx].displayCanvas(this[Dx]),d,p,h,u,0,0,h,u),lx.toBlob((e=>{if(!e)return n(new Error("Unable to retrieve canvas blob"));t(e)}),e,i)}))}finally{this[vx]({width:s,height:r})}}registerEffectComposer(t){t.setRenderer(this[Nx].threeRenderer),t.setMainCamera(this[Dx].getCamera()),t.setMainScene(this[Dx]),this[Dx].effectRenderer=t}unregisterEffectComposer(){this[Dx].effectRenderer=null}registerRenderer(t){this[Dx].externalRenderer=t}unregisterRenderer(){this[Dx].externalRenderer=null}get[_x](){return this[Ex]}get[Ex](){return null==this.alt||"null"===this.alt?this[hx]:this.alt}[Qx](){return this[Ax]}[kx](){return this.loaded&&this[yx]}[Gx](){return!!this.src&&this[yx]}[vx]({width:t,height:e}){0!==t&&0!==e&&(this[Tx].style.width=`${t}px`,this[Tx].style.height=`${e}px`,this[Fx]({width:t,height:e}))}[Px](t,e){var i;null===(i=this[Dx].effectRenderer)||void 0===i||i.beforeRender(t,e)}[Mx](){this[Ax]||(this[Ax]=!0,this[wx]=performance.now())}[Lx](){this[Dx].queueRender()}[Ux](){}[Cx](t){this[mx]=t;const e=this.getRootNode();null!=e&&e.activeElement===this&&this[Sx].textContent!=t&&(this[Sx].textContent=t)}[(sx=gx,rx=fx,Fx)](t){this[Dx].setSize(t.width,t.height)}async[(ax=px,Ix)](){const t=this[Dx];if(this.loaded||!this[Gx]()||this.src===t.url)return;this.generateSchema&&t.updateSchema(this.src),this[Cx]("Loading"),t.stopAnimation();const e=this[Ox].beginActivity("model-load"),i=this.src;try{const n=t.setSource(i,(t=>e(.95*Ku(t,0,1)))),s=this[ed]();await Promise.all([n,s]),this[Mx](),this[Ux](),this.updateComplete.then((()=>{this.dispatchEvent(new CustomEvent("before-render"))})),await new Promise((t=>{requestAnimationFrame((()=>{requestAnimationFrame((()=>{this.dispatchEvent(new CustomEvent("load",{detail:{url:i}})),t()}))}))}))}catch(t){this.dispatchEvent(new CustomEvent("error",{detail:{type:"loadfailure",sourceError:t}}))}finally{e(1)}}}ox([E({type:String})],Vx.prototype,"alt",void 0),ox([E({type:String})],Vx.prototype,"src",void 0),ox([E({type:Boolean,attribute:"with-credentials"})],Vx.prototype,"withCredentials",void 0),ox([E({type:Boolean,attribute:"generate-schema"})],Vx.prototype,"generateSchema",void 0);
/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
var Wx=function(t,e,i,n){for(var s,r=arguments.length,a=r<3?e:null===n?n=Object.getOwnPropertyDescriptor(e,i):n,o=t.length-1;o>=0;o--)(s=t[o])&&(a=(r<3?s(a):r>3?s(e,i,a):s(e,i))||a);return r>3&&a&&Object.defineProperty(e,i,a),a};const qx=Symbol("changeAnimation"),jx=Symbol("appendAnimation"),Xx=Symbol("detachAnimation"),Yx=Symbol("paused"),Kx={repetitions:1/0,pingpong:!1},Jx={pingpong:!1,repetitions:null,weight:1,timeScale:1,fade:!1,warp:!1,relativeWarp:!0,time:null},$x={fade:!0},Zx=Symbol("hotspotMap"),t_=Symbol("mutationCallback"),e_=Symbol("observer"),i_=Symbol("addHotspot"),n_=Symbol("removeHotspot"),s_=new en;
/*!
fflate - fast JavaScript compression/decompression
<https://101arrowz.github.io/fflate>
Licensed under MIT. https://github.com/101arrowz/fflate/blob/master/LICENSE
version 0.8.2
*/
var r_=Uint8Array,a_=Uint16Array,o_=Int32Array,l_=new r_([0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0,0,0,0]),c_=new r_([0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,0,0]),h_=new r_([16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15]),u_=function(t,e){for(var i=new a_(31),n=0;n<31;++n)i[n]=e+=1<<t[n-1];var s=new o_(i[30]);for(n=1;n<30;++n)for(var r=i[n];r<i[n+1];++r)s[r]=r-i[n]<<5|n;return{b:i,r:s}},d_=u_(l_,2),p_=d_.b,A_=d_.r;p_[28]=258,A_[258]=28;for(var m_=u_(c_,0).r,g_=new a_(32768),f_=0;f_<32768;++f_){var v_=(43690&f_)>>1|(21845&f_)<<1;v_=(61680&(v_=(52428&v_)>>2|(13107&v_)<<2))>>4|(3855&v_)<<4,g_[f_]=((65280&v_)>>8|(255&v_)<<8)>>1}var b_=function(t,e,i){for(var n=t.length,s=0,r=new a_(e);s<n;++s)t[s]&&++r[t[s]-1];var a,o=new a_(e);for(s=1;s<e;++s)o[s]=o[s-1]+r[s-1]<<1;if(i){a=new a_(1<<e);var l=15-e;for(s=0;s<n;++s)if(t[s])for(var c=s<<4|t[s],h=e-t[s],u=o[t[s]-1]++<<h,d=u|(1<<h)-1;u<=d;++u)a[g_[u]>>l]=c}else for(a=new 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Date(null==i.mtime?Date.now():i.mtime),p=d.getFullYear()-1980;if((p<0||p>119)&&I_(10),H_(t,e,p<<25|d.getMonth()+1<<21|d.getDate()<<16|d.getHours()<<11|d.getMinutes()<<5|d.getSeconds()>>1),e+=4,-1!=r&&(H_(t,e,i.crc),H_(t,e+4,r<0?-r-2:r),H_(t,e+8,i.size)),H_(t,e+12,l),H_(t,e+14,u),e+=16,null!=a&&(H_(t,e,h),H_(t,e+6,i.attrs),H_(t,e+10,a),e+=14),t.set(n,e),e+=l,u)for(var A in c){var m=c[A],g=m.length;H_(t,e,+A),H_(t,e+2,g),t.set(m,e+4),e+=4+g}return h&&(t.set(o,e),e+=h),e};function K_(t,e){e||(e={});var i={},n=[];V_(t,"",i,e);var s=0,r=0;for(var a in i){var o=i[a],l=o[0],c=o[1],h=0==c.level?0:8,u=(E=j_(a)).length,d=c.comment,p=d&&j_(d),A=p&&p.length,m=X_(c.extra);u>65535&&I_(11);var g=h?z_(l,c):l,f=g.length,v=Q_();v.p(l),n.push(G_(c,{size:l.length,crc:v.d(),c:g,f:E,m:p,u:u!=a.length||p&&d.length!=A,o:s,compression:h})),s+=30+u+m+f,r+=76+2*(u+m)+(A||0)+f}for(var b=new r_(r+22),y=s,x=r-s,_=0;_<n.length;++_){var E=n[_];Y_(b,E.o,E,E.f,E.u,E.c.length);var S=30+E.f.length+X_(E.extra);b.set(E.c,E.o+S),Y_(b,s,E,E.f,E.u,E.c.length,E.o,E.m),s+=16+S+(E.m?E.m.length:0)}return function(t,e,i,n,s){H_(t,e,101010256),H_(t,e+8,i),H_(t,e+10,i),H_(t,e+12,n),H_(t,e+16,s)}(b,s,n.length,x,y),b}class J_{constructor(){this.textureUtils=null}setTextureUtils(t){this.textureUtils=t}parse(t,e,i,n){this.parseAsync(t,n).then(e).catch(i)}async parseAsync(t,e={}){e=Object.assign({ar:{anchoring:{type:"plane"},planeAnchoring:{alignment:"horizontal"}},includeAnchoringProperties:!0,quickLookCompatible:!1,maxTextureSize:1024},e);const i={},n="model.usda";i[n]=null;let s=tE();s+=function(t){const e=!0===t.includeAnchoringProperties?`\n\t\ttoken preliminary:anchoring:type = "${t.ar.anchoring.type}"\n\t\ttoken preliminary:planeAnchoring:alignment = "${t.ar.planeAnchoring.alignment}"\n\t`:"";return`def Xform "Root"\n{\n\tdef Scope "Scenes" (\n\t\tkind = "sceneLibrary"\n\t)\n\t{\n\t\tdef Xform "Scene" (\n\t\t\tcustomData = {\n\t\t\t\tbool preliminary_collidesWithEnvironment = 0\n\t\t\t\tstring sceneName = "Scene"\n\t\t\t}\n\t\t\tsceneName = "Scene"\n\t\t)\n\t\t{${e}\n`}(e);const r={},a={};t.traverseVisible((t=>{if(t.isMesh){const e=t.geometry,n=t.material;if(n.isMeshStandardMaterial){const a="geometries/Geometry_"+e.id+".usda";if(!(a in i)){const t=function(t){const e=function(t){const e="Geometry",i=t.attributes,n=i.position.count;return`\n\tdef Mesh "${e}"\n\t{\n\t\tint[] faceVertexCounts = [${function(t){const e=null!==t.index?t.index.count:t.attributes.position.count;return Array(e/3).fill(3).join(", ")}(t)}]\n\t\tint[] faceVertexIndices = [${function(t){const e=t.index,i=[];if(null!==e)for(let t=0;t<e.count;t++)i.push(e.getX(t));else{const e=t.attributes.position.count;for(let t=0;t<e;t++)i.push(t)}return i.join(", ")}(t)}]\n\t\tnormal3f[] normals = [${nE(i.normal,n)}] (\n\t\t\tinterpolation = "vertex"\n\t\t)\n\t\tpoint3f[] points = [${nE(i.position,n)}]\n${function(t){let e="";for(let i=0;i<4;i++){const n=i>0?i:"",s=t["uv"+n];void 0!==s&&(e+=`\n\t\ttexCoord2f[] primvars:st${n} = [${sE(s)}] (\n\t\t\tinterpolation = "vertex"\n\t\t)`)}const i=t.color;if(void 0!==i){e+=`\n\tcolor3f[] primvars:displayColor = [${nE(i,i.count)}] (\n\t\tinterpolation = "vertex"\n\t\t)`}return e}(i)}\n\t\tuniform token subdivisionScheme = "none"\n\t}\n`}(t);return`\ndef "Geometry"\n{\n${e}\n}\n`}(e);i[a]=function(t){let e=tE();return e+=t,j_(e)}(t)}n.uuid in r||(r[n.uuid]=n),s+=function(t,e,i){const n="Object_"+t.id,s=eE(t.matrixWorld);t.matrixWorld.determinant()<0&&console.warn("THREE.USDZExporter: USDZ does not support negative scales",t);return`def Xform "${n}" (\n\tprepend references = @./geometries/Geometry_${e.id}.usda@</Geometry>\n\tprepend apiSchemas = ["MaterialBindingAPI"]\n)\n{\n\tmatrix4d xformOp:transform = ${s}\n\tuniform token[] xformOpOrder = ["xformOp:transform"]\n\n\trel material:binding = </Materials/Material_${i.id}>\n}\n\n`}(t,e,n)}else console.warn("THREE.USDZExporter: Unsupported material type (USDZ only supports MeshStandardMaterial)",t)}else t.isCamera&&(s+=function(t){const e=t.name?t.name:"Camera_"+t.id,i=eE(t.matrixWorld);t.matrixWorld.determinant()<0&&console.warn("THREE.USDZExporter: USDZ does not support negative scales",t);return t.isOrthographicCamera?`def Camera "${e}"\n\t\t{\n\t\t\tmatrix4d xformOp:transform = ${i}\n\t\t\tuniform token[] xformOpOrder = ["xformOp:transform"]\n\n\t\t\tfloat2 clippingRange = (${t.near.toPrecision(Z_)}, ${t.far.toPrecision(Z_)})\n\t\t\tfloat horizontalAperture = ${(10*(Math.abs(t.left)+Math.abs(t.right))).toPrecision(Z_)}\n\t\t\tfloat verticalAperture = ${(10*(Math.abs(t.top)+Math.abs(t.bottom))).toPrecision(Z_)}\n\t\t\ttoken projection = "orthographic"\n\t\t}\n\t\n\t`:`def Camera "${e}"\n\t\t{\n\t\t\tmatrix4d xformOp:transform = ${i}\n\t\t\tuniform token[] xformOpOrder = ["xformOp:transform"]\n\n\t\t\tfloat2 clippingRange = (${t.near.toPrecision(Z_)}, ${t.far.toPrecision(Z_)})\n\t\t\tfloat focalLength = ${t.getFocalLength().toPrecision(Z_)}\n\t\t\tfloat focusDistance = ${t.focus.toPrecision(Z_)}\n\t\t\tfloat horizontalAperture = ${t.getFilmWidth().toPrecision(Z_)}\n\t\t\ttoken projection = "perspective"\n\t\t\tfloat verticalAperture = ${t.getFilmHeight().toPrecision(Z_)}\n\t\t}\n\t\n\t`}
/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */(t))})),s+="\n\t\t}\n\t}\n}\n\n",s+=function(t,e,i=!1){const n=[];for(const s in t){const r=t[s];n.push(rE(r,e,i))}return`def "Materials"\n{\n${n.join("")}\n}\n\n`}(r,a,e.quickLookCompatible),i[n]=j_(s),s=null;for(const t in a){let n=a[t];if(!0===n.isCompressedTexture){if(null===this.textureUtils)throw new Error("THREE.USDZExporter: setTextureUtils() must be called to process compressed textures.");n=await this.textureUtils.decompress(n)}const s=$_(n.image,n.flipY,e.maxTextureSize),r=await new Promise((t=>s.toBlob(t,"image/png",1)));i[`textures/Texture_${t}.png`]=new Uint8Array(await r.arrayBuffer())}let o=0;for(const t in i){const e=i[t];o+=34+t.length;const n=63&o;if(4!==n){const s=new Uint8Array(64-n);i[t]=[e,{extra:{12345:s}}]}o=e.length}return K_(i,{level:0})}}function $_(t,e,i){if("undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"undefined"!=typeof OffscreenCanvas&&t instanceof OffscreenCanvas||"undefined"!=typeof ImageBitmap&&t instanceof ImageBitmap){const n=i/Math.max(t.width,t.height),s=document.createElement("canvas");s.width=t.width*Math.min(1,n),s.height=t.height*Math.min(1,n);const r=s.getContext("2d");return!0===e&&(r.translate(0,s.height),r.scale(1,-1)),r.drawImage(t,0,0,s.width,s.height),s}throw new Error("THREE.USDZExporter: No valid image data found. Unable to process texture.")}const Z_=7;function tE(){return'#usda 1.0\n(\n\tcustomLayerData = {\n\t\tstring creator = "Three.js USDZExporter"\n\t}\n\tdefaultPrim = "Root"\n\tmetersPerUnit = 1\n\tupAxis = "Y"\n)\n\n'}function eE(t){const e=t.elements;return`( ${iE(e,0)}, ${iE(e,4)}, ${iE(e,8)}, ${iE(e,12)} )`}function iE(t,e){return`(${t[e+0]}, ${t[e+1]}, ${t[e+2]}, ${t[e+3]})`}function nE(t,e){if(void 0===t)return console.warn("USDZExporter: Normals missing."),Array(e).fill("(0, 0, 0)").join(", ");const i=[];for(let e=0;e<t.count;e++){const n=t.getX(e),s=t.getY(e),r=t.getZ(e);i.push(`(${n.toPrecision(Z_)}, ${s.toPrecision(Z_)}, ${r.toPrecision(Z_)})`)}return i.join(", ")}function sE(t){const e=[];for(let i=0;i<t.count;i++){const n=t.getX(i),s=t.getY(i);e.push(`(${n.toPrecision(Z_)}, ${1-s.toPrecision(Z_)})`)}return e.join(", ")}function rE(t,e,i=!1){const n="\t\t\t",s=[],r=[];function a(n,s,r){const a=n.source.id+"_"+n.flipY;e[a]=n;const o=n.channel>0?"st"+n.channel:"st",l={1e3:"repeat",1001:"clamp",1002:"mirror"},c=n.repeat.clone(),h=n.offset.clone(),u=n.rotation,d=Math.sin(u),p=Math.cos(u);return h.y=1-h.y-c.y,i?(h.x=h.x/c.x,h.y=h.y/c.y,h.x+=d/c.x,h.y+=p-1):(h.x+=d*c.x,h.y+=(1-p)*c.y),`\n\t\tdef Shader "PrimvarReader_${s}"\n\t\t{\n\t\t\tuniform token info:id = "UsdPrimvarReader_float2"\n\t\t\tfloat2 inputs:fallback = (0.0, 0.0)\n\t\t\ttoken inputs:varname = "${o}"\n\t\t\tfloat2 outputs:result\n\t\t}\n\n\t\tdef Shader "Transform2d_${s}"\n\t\t{\n\t\t\tuniform token info:id = "UsdTransform2d"\n\t\t\ttoken inputs:in.connect = </Materials/Material_${t.id}/PrimvarReader_${s}.outputs:result>\n\t\t\tfloat inputs:rotation = ${(u*(180/Math.PI)).toFixed(Z_)}\n\t\t\tfloat2 inputs:scale = ${oE(c)}\n\t\t\tfloat2 inputs:translation = ${oE(h)}\n\t\t\tfloat2 outputs:result\n\t\t}\n\n\t\tdef Shader "Texture_${n.id}_${s}"\n\t\t{\n\t\t\tuniform token info:id = "UsdUVTexture"\n\t\t\tasset inputs:file = @textures/Texture_${a}.png@\n\t\t\tfloat2 inputs:st.connect = </Materials/Material_${t.id}/Transform2d_${s}.outputs:result>\n\t\t\t${void 0!==r?"float4 inputs:scale = "+function(t){return`(${t.r}, ${t.g}, ${t.b}, 1.0)`}(r):""}\n\t\t\ttoken inputs:sourceColorSpace = "${n.colorSpace===_e?"raw":"sRGB"}"\n\t\t\ttoken inputs:wrapS = "${l[n.wrapS]}"\n\t\t\ttoken inputs:wrapT = "${l[n.wrapT]}"\n\t\t\tfloat outputs:r\n\t\t\tfloat outputs:g\n\t\t\tfloat outputs:b\n\t\t\tfloat3 outputs:rgb\n\t\t\t${t.transparent||t.alphaTest>0?"float outputs:a":""}\n\t\t}`}return 2===t.side&&console.warn("THREE.USDZExporter: USDZ does not support double sided materials",t),null!==t.map?(s.push(`${n}color3f inputs:diffuseColor.connect = </Materials/Material_${t.id}/Texture_${t.map.id}_diffuse.outputs:rgb>`),t.transparent?s.push(`${n}float inputs:opacity.connect = </Materials/Material_${t.id}/Texture_${t.map.id}_diffuse.outputs:a>`):t.alphaTest>0&&(s.push(`${n}float inputs:opacity.connect = </Materials/Material_${t.id}/Texture_${t.map.id}_diffuse.outputs:a>`),s.push(`${n}float inputs:opacityThreshold = ${t.alphaTest}`)),r.push(a(t.map,"diffuse",t.color))):s.push(`${n}color3f inputs:diffuseColor = ${aE(t.color)}`),null!==t.emissiveMap?(s.push(`${n}color3f inputs:emissiveColor.connect = </Materials/Material_${t.id}/Texture_${t.emissiveMap.id}_emissive.outputs:rgb>`),r.push(a(t.emissiveMap,"emissive",new Xn(t.emissive.r*t.emissiveIntensity,t.emissive.g*t.emissiveIntensity,t.emissive.b*t.emissiveIntensity)))):t.emissive.getHex()>0&&s.push(`${n}color3f inputs:emissiveColor = ${aE(t.emissive)}`),null!==t.normalMap&&(s.push(`${n}normal3f inputs:normal.connect = </Materials/Material_${t.id}/Texture_${t.normalMap.id}_normal.outputs:rgb>`),r.push(a(t.normalMap,"normal"))),null!==t.aoMap&&(s.push(`${n}float inputs:occlusion.connect = </Materials/Material_${t.id}/Texture_${t.aoMap.id}_occlusion.outputs:r>`),r.push(a(t.aoMap,"occlusion",new Xn(t.aoMapIntensity,t.aoMapIntensity,t.aoMapIntensity)))),null!==t.roughnessMap?(s.push(`${n}float inputs:roughness.connect = </Materials/Material_${t.id}/Texture_${t.roughnessMap.id}_roughness.outputs:g>`),r.push(a(t.roughnessMap,"roughness",new Xn(t.roughness,t.roughness,t.roughness)))):s.push(`${n}float inputs:roughness = ${t.roughness}`),null!==t.metalnessMap?(s.push(`${n}float inputs:metallic.connect = </Materials/Material_${t.id}/Texture_${t.metalnessMap.id}_metallic.outputs:b>`),r.push(a(t.metalnessMap,"metallic",new Xn(t.metalness,t.metalness,t.metalness)))):s.push(`${n}float inputs:metallic = ${t.metalness}`),null!==t.alphaMap?(s.push(`${n}float inputs:opacity.connect = </Materials/Material_${t.id}/Texture_${t.alphaMap.id}_opacity.outputs:r>`),s.push(`${n}float inputs:opacityThreshold = 0.0001`),r.push(a(t.alphaMap,"opacity"))):s.push(`${n}float inputs:opacity = ${t.opacity}`),t.isMeshPhysicalMaterial&&(null!==t.clearcoatMap?(s.push(`${n}float inputs:clearcoat.connect = </Materials/Material_${t.id}/Texture_${t.clearcoatMap.id}_clearcoat.outputs:r>`),r.push(a(t.clearcoatMap,"clearcoat",new Xn(t.clearcoat,t.clearcoat,t.clearcoat)))):s.push(`${n}float inputs:clearcoat = ${t.clearcoat}`),null!==t.clearcoatRoughnessMap?(s.push(`${n}float inputs:clearcoatRoughness.connect = </Materials/Material_${t.id}/Texture_${t.clearcoatRoughnessMap.id}_clearcoatRoughness.outputs:g>`),r.push(a(t.clearcoatRoughnessMap,"clearcoatRoughness",new Xn(t.clearcoatRoughness,t.clearcoatRoughness,t.clearcoatRoughness)))):s.push(`${n}float inputs:clearcoatRoughness = ${t.clearcoatRoughness}`),s.push(`${n}float inputs:ior = ${t.ior}`)),`\n\tdef Material "Material_${t.id}"\n\t{\n\t\tdef Shader "PreviewSurface"\n\t\t{\n\t\t\tuniform token info:id = "UsdPreviewSurface"\n${s.join("\n")}\n\t\t\tint inputs:useSpecularWorkflow = 0\n\t\t\ttoken outputs:surface\n\t\t}\n\n\t\ttoken outputs:surface.connect = </Materials/Material_${t.id}/PreviewSurface.outputs:surface>\n\n${r.join("\n")}\n\n\t}\n`}function aE(t){return`(${t.r}, ${t.g}, ${t.b})`}function oE(t){return`(${t.x}, ${t.y})`}
/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
var lE=function(t,e,i,n){for(var s,r=arguments.length,a=r<3?e:null===n?n=Object.getOwnPropertyDescriptor(e,i):n,o=t.length-1;o>=0;o--)(s=t[o])&&(a=(r<3?s(a):r>3?s(e,i,a):s(e,i))||a);return r>3&&a&&Object.defineProperty(e,i,a),a};let cE=!1,hE=!1;const uE="#model-viewer-no-ar-fallback",dE=(pE=["quick-look","scene-viewer","webxr","none"],t=>{try{const e=Sm(t),i=(e.length?e[0].terms:[]).filter((t=>t&&"ident"===t.type)).map((t=>t.value)).filter((t=>pE.indexOf(t)>-1));return new Set(i)}catch(t){}return new Set});var pE;const AE="quick-look",mE="scene-viewer",gE="webxr",fE="none",vE=Symbol("arButtonContainer"),bE=Symbol("enterARWithWebXR"),yE=Symbol("openSceneViewer"),xE=Symbol("openIOSARQuickLook"),_E=Symbol("canActivateAR"),EE=Symbol("arMode"),SE=Symbol("arModes"),CE=Symbol("arAnchor"),wE=Symbol("preload"),IE=Symbol("onARButtonContainerClick"),ME=Symbol("onARStatus"),TE=Symbol("onARTracking"),BE=Symbol("onARTap"),RE=Symbol("selectARMode"),DE=Symbol("triggerLoad");
/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
var LE=function(t,e,i,n){for(var s,r=arguments.length,a=r<3?e:null===n?n=Object.getOwnPropertyDescriptor(e,i):n,o=t.length-1;o>=0;o--)(s=t[o])&&(a=(r<3?s(a):r>3?s(e,i,a):s(e,i))||a);return r>3&&a&&Object.defineProperty(e,i,a),a};const PE="auto",UE="auto",FE="eager",NE=Symbol("defaultProgressBarElement"),OE=Symbol("posterContainerElement"),QE=Symbol("defaultPosterElement"),kE=Symbol("shouldDismissPoster"),GE=Symbol("hidePoster"),HE=Symbol("modelIsRevealed"),zE=Symbol("updateProgressBar"),VE=Symbol("ariaLabelCallToAction"),WE=Symbol("onProgress");
/* @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
var qE=function(t,e,i,n){for(var s,r=arguments.length,a=r<3?e:null===n?n=Object.getOwnPropertyDescriptor(e,i):n,o=t.length-1;o>=0;o--)(s=t[o])&&(a=(r<3?s(a):r>3?s(e,i,a):s(e,i))||a);return r>3&&a&&Object.defineProperty(e,i,a),a};const jE=Math.PI/32,XE={basis:[Lm(Em(jE,"rad"))],keywords:{auto:[null]}},YE=Symbol("autoRotateStartTime"),KE=Symbol("radiansPerSecond"),JE=Symbol("syncRotationRate"),$E=Symbol("onCameraChange"),ZE=(t=>{var e,i,n;class s extends t{constructor(){super(...arguments),this[e]=new Map,this[i]=t=>{t.forEach((t=>{t instanceof MutationRecord&&"childList"!==t.type||(t.addedNodes.forEach((t=>{this[i_](t)})),t.removedNodes.forEach((t=>{this[n_](t)})),this[Lx]())}))},this[n]=new MutationObserver(this[t_])}connectedCallback(){super.connectedCallback();for(let t=0;t<this.children.length;++t)this[i_](this.children[t]);const{ShadyDOM:t}=self;null==t?this[e_].observe(this,{childList:!0}):this[e_]=t.observeChildren(this,this[t_])}disconnectedCallback(){super.disconnectedCallback();const{ShadyDOM:t}=self;null==t?this[e_].disconnect():t.unobserveChildren(this[e_])}[(e=Zx,i=t_,n=e_,Ux)](){super[Ux]();const t=this[Dx];t.forHotspots((e=>{t.updateSurfaceHotspot(e)}))}[Px](t,e){super[Px](t,e);const i=this[Dx],{annotationRenderer:n}=i,s=i.getCamera();i.shouldRender()&&(i.animateSurfaceHotspots(),i.updateHotspotsVisibility(s.position),n.domElement.style.display="",n.render(i,s))}updateHotspot(t){const e=this[Zx].get(t.name);null!=e&&(e.updatePosition(t.position),e.updateNormal(t.normal),e.surface=t.surface,this[Dx].updateSurfaceHotspot(e),this[Lx]())}queryHotspot(t){const e=this[Zx].get(t);if(null==e)return null;const i=Hx(e.position),n=Hx(e.normal),s=e.facingCamera,r=this[Dx],a=r.getCamera(),o=new Ci;o.setFromMatrixPosition(e.matrixWorld),o.project(a);const l=r.width/2,c=r.height/2;o.x=o.x*l+l,o.y=-o.y*c+c;const h=Hx(new Ci(o.x,o.y,o.z));return Number.isFinite(h.x)&&Number.isFinite(h.y)?{position:i,normal:n,canvasPosition:h,facingCamera:s}:null}positionAndNormalFromPoint(t,e){const i=this[Dx],n=i.getNDC(t,e),s=i.positionAndNormalFromPoint(n);if(null==s)return null;s_.copy(i.target.matrixWorld).invert();const r=Hx(s.position.applyMatrix4(s_)),a=Hx(s.normal.transformDirection(s_));let o=null;return null!=s.uv&&(o=zx(s.uv)),{position:r,normal:a,uv:o}}surfaceFromPoint(t,e){const i=this[Dx],n=i.getNDC(t,e);return i.surfaceFromPoint(n)}[i_](t){if(!(t instanceof HTMLElement&&0===t.slot.indexOf("hotspot")))return;let e=this[Zx].get(t.slot);null!=e?e.increment():(e=new Uy({name:t.slot,position:t.dataset.position,normal:t.dataset.normal,surface:t.dataset.surface}),this[Zx].set(t.slot,e),this[Dx].addHotspot(e)),this[Dx].queueRender()}[n_](t){if(!(t instanceof HTMLElement))return;const e=this[Zx].get(t.slot);e&&(e.decrement()&&(this[Dx].removeHotspot(e),this[Zx].delete(t.slot)),this[Dx].queueRender())}}return s})((t=>{var e,i,n;class s extends t{constructor(){super(...arguments),this[e]=void 0,this[i]=null,this[n]=null,this.variantName=null,this.orientation="0 0 0",this.scale="1 1 1"}get model(){return this[Cy]}get availableVariants(){return this.model?this.model[fy]():[]}get originalGltfJson(){return this[Sy]}[(e=Cy,i=Ey,n=Sy,wy)](){return()=>{this[Lx]()}}[Iy](t){return t.colorSpace=Ee,t.wrapS=at,t.wrapT=at,new mb(this[wy](),t)}async createTexture(t,e="image/png"){const{textureUtils:i}=this[Nx],n=await i.loadImage(t,this.withCredentials);return n.userData.mimeType=e,this[Iy](n)}async createLottieTexture(t,e=1){const{textureUtils:i}=this[Nx],n=await i.loadLottie(t,e,this.withCredentials);return this[Iy](n)}createVideoTexture(t){const e=document.createElement("video");e.crossOrigin=this.withCredentials?"use-credentials":"anonymous",e.src=t,e.muted=!0,e.playsInline=!0,e.loop=!0,e.play();const i=new Kr(e);return this[Iy](i)}createCanvasTexture(){const t=document.createElement("canvas"),e=new ta(t);return this[Iy](e)}async updated(t){if(super.updated(t),t.has("variantName")){const t=this[Ox].beginActivity("variant-update");t(.1);const e=this[Cy],{variantName:i}=this;null!=e&&(await e[dy](i),this[Lx](),this.dispatchEvent(new CustomEvent("variant-applied"))),t(1)}if(t.has("orientation")||t.has("scale")){if(!this.loaded)return;const t=this[Dx];t.applyTransform(),t.updateBoundingBox(),t.updateShadow(),this[Nx].arRenderer.onUpdateScene(),this[Lx]()}}[Ux](){super[Ux]();const{currentGLTF:t}=this[Dx];if(null!=t){const{correlatedSceneGraph:e}=t;null!=e&&t!==this[Ey]&&(this[Cy]=new xy(e,this[wy]()),this[Sy]=JSON.parse(JSON.stringify(e.gltf))),"variants"in t.userData&&this.requestUpdate("variantName")}this[Ey]=t}async exportScene(t){const e=this[Dx];return new Promise((async(i,n)=>{const s={binary:!0,onlyVisible:!0,maxTextureSize:1/0,includeCustomExtensions:!1,forceIndices:!1};Object.assign(s,t),s.animations=e.animations,s.truncateDrawRange=!0;const r=e.shadow;let a=!1;null!=r&&(a=r.visible,r.visible=!1),await this[Cy][uy]();(new bA).register((t=>new mm(t))).parse(e.model,(t=>i(new Blob([s.binary?t:JSON.stringify(t)],{type:s.binary?"application/octet-stream":"application/json"}))),(()=>n("glTF export failed")),s),null!=r&&(r.visible=a)}))}materialFromPoint(t,e){const i=this[Cy];if(null==i)return null;const n=this[Dx],s=n.getNDC(t,e),r=n.hitFromPoint(s);return null==r||null==r.face?null:i[py](r)}}return _y([E({type:String,attribute:"variant-name"})],s.prototype,"variantName",void 0),_y([E({type:String,attribute:"orientation"})],s.prototype,"orientation",void 0),_y([E({type:String,attribute:"scale"})],s.prototype,"scale",void 0),s})((t=>{var e,i,n;class s extends t{constructor(){super(...arguments),this.autoRotate=!1,this.autoRotateDelay=3e3,this.rotationPerSecond="auto",this[e]=performance.now(),this[i]=0,this[n]=t=>{this.autoRotate&&"user-interaction"===t.detail.source&&(this[YE]=performance.now())}}connectedCallback(){super.connectedCallback(),this.addEventListener("camera-change",this[$E]),this[YE]=performance.now()}disconnectedCallback(){super.disconnectedCallback(),this.removeEventListener("camera-change",this[$E]),this[YE]=performance.now()}updated(t){super.updated(t),t.has("autoRotate")&&(this[YE]=performance.now())}[(e=YE,i=KE,JE)](t){this[KE]=t[0]}[Px](t,e){if(super[Px](t,e),!this.autoRotate||!this[kx]()||this[Nx].isPresenting)return;const i=Math.min(e,t-this[YE]-this.autoRotateDelay);i>0&&(this[Dx].yaw=this.turntableRotation+this[KE]*i*.001)}get turntableRotation(){return this[Dx].yaw}resetTurntableRotation(t=0){this[Dx].yaw=t}}return n=$E,qE([E({type:Boolean,attribute:"auto-rotate"})],s.prototype,"autoRotate",void 0),qE([E({type:Number,attribute:"auto-rotate-delay"})],s.prototype,"autoRotateDelay",void 0),qE([bg({intrinsics:XE,updateHandler:JE}),E({type:String,attribute:"rotation-per-second"})],s.prototype,"rotationPerSecond",void 0),s})((t=>{var e,i,n;class s extends t{constructor(){super(...arguments),this.environmentImage=null,this.skyboxImage=null,this.shadowIntensity=0,this.shadowSoftness=1,this.exposure=1,this.toneMapping="auto",this.skyboxHeight="0",this[e]=null,this[i]=null,this[n]=null}updated(t){var e;if(super.updated(t),t.has("shadowIntensity")&&(this[Dx].setShadowIntensity(.5*this.shadowIntensity),this[Lx]()),t.has("shadowSoftness")&&(this[Dx].setShadowSoftness(this.shadowSoftness),this[Lx]()),t.has("exposure")&&(this[Dx].exposure=this.exposure,this[Lx]()),t.has("toneMapping")){const t=new Map([["aces",4],["agx",6],["reinhard",2],["cineon",3],["linear",1],["none",0]]);this[Dx].toneMapping=null!==(e=t.get(this.toneMapping))&&void 0!==e?e:7,this[Lx]()}(t.has("environmentImage")||t.has("skyboxImage"))&&this[Gx]()&&this[ed](),t.has("skyboxHeight")&&(this[Dx].setGroundedSkybox(),this[Lx]())}hasBakedShadow(){return this[Dx].bakedShadows.size>0}async[(e=Zu,i=td,n=id,ed)](){const{skyboxImage:t,environmentImage:e}=this;null!=this[id]&&(this[id](),this[id]=null);const{textureUtils:i}=this[Nx];if(null==i)return;const n=this[Ox].beginActivity("environment-update");try{const{environmentMap:s,skybox:r}=await i.generateEnvironmentMapAndSkybox(qu(t),e,(t=>n(Ku(t,0,1))),this.withCredentials);this[Zu]!==s&&(this[Zu]=s,this.dispatchEvent(new CustomEvent("environment-change"))),this[td]=null!=r?r.name===s.name?s:r:null,this[Dx].setEnvironmentAndSkybox(this[Zu],this[td])}catch(t){if(t instanceof Error)throw this[Dx].setEnvironmentAndSkybox(null,null),t}finally{n(1)}}}return $u([E({type:String,attribute:"environment-image"})],s.prototype,"environmentImage",void 0),$u([E({type:String,attribute:"skybox-image"})],s.prototype,"skyboxImage",void 0),$u([E({type:Number,attribute:"shadow-intensity"})],s.prototype,"shadowIntensity",void 0),$u([E({type:Number,attribute:"shadow-softness"})],s.prototype,"shadowSoftness",void 0),$u([E({type:Number})],s.prototype,"exposure",void 0),$u([E({type:String,attribute:"tone-mapping"})],s.prototype,"toneMapping",void 0),$u([E({type:String,attribute:"skybox-height"})],s.prototype,"skyboxHeight",void 0),s})((t=>{var e,i,n,s,r,a,o,l,c,h,u,d,p,A,m,g,f,v;class b extends t{constructor(){super(...arguments),this.cameraControls=!1,this.cameraOrbit=wg,this.cameraTarget="auto auto auto",this.fieldOfView="auto",this.minCameraOrbit="auto",this.maxCameraOrbit="auto",this.minFieldOfView="auto",this.maxFieldOfView="auto",this.interactionPromptThreshold=3e3,this.interactionPrompt=Tg,this.interactionPromptStyle=Rg,this.orbitSensitivity=1,this.zoomSensitivity=1,this.panSensitivity=1,this.touchAction=Dg,this.disableZoom=!1,this.disablePan=!1,this.disableTap=!1,this.interpolationDecay=50,this.a11y=null,this[e]=this.shadowRoot.querySelector(".interaction-prompt"),this[i]=this.shadowRoot.querySelector("#prompt"),this[n]=[this.shadowRoot.querySelector("#finger0"),this.shadowRoot.querySelector("#finger1")],this[s]=this.shadowRoot.querySelector(".pan-target"),this[r]=0,this[a]=1/0,this[o]=!1,this[l]=!1,this[c]=Sf.AUTOMATIC,this[h]=new Cf(this[Dx].camera,this[Bx],this[Dx]),this[u]=new hl,this[d]=!1,this[p]=!1,this[A]=!1,this[m]={},this[g]=()=>{const t=this[zg].changeSource;this[of]=t,t===Sf.USER_INTERACTION&&(this[sf]=!0,this[Xg]())},this[f]=()=>{this[Yg](),this[Lx]();const t=this[zg].changeSource;this.dispatchEvent(new CustomEvent("camera-change",{detail:{source:t}}))},this[v]=t=>{this[Tx].classList.toggle("pointer-tumbling","pointer-change-start"===t.type)}}get inputSensitivity(){return this[zg].inputSensitivity}set inputSensitivity(t){this[zg].inputSensitivity=t}getCameraOrbit(){const{theta:t,phi:e,radius:i}=this[lf];return{theta:t,phi:e,radius:i,toString(){return`${this.theta}rad ${this.phi}rad ${this.radius}m`}}}getCameraTarget(){return Hx(this[Nx].isPresenting?this[Nx].arRenderer.target:this[Dx].getDynamicTarget())}getFieldOfView(){return this[zg].getFieldOfView()}getMinimumFieldOfView(){return this[zg].options.minimumFieldOfView}getMaximumFieldOfView(){return this[zg].options.maximumFieldOfView}getIdealAspect(){return this[Dx].idealAspect}jumpCameraToGoal(){this[cf]=!0,this.requestUpdate(cf,!1)}resetInteractionPrompt(){this[af]=0,this[rf]=1/0,this[sf]=!1,this[nf]=this.interactionPrompt===Tg&&this.cameraControls}zoom(t){const e=new WheelEvent("wheel",{deltaY:-30*t});this[Bx].dispatchEvent(e)}connectedCallback(){super.connectedCallback(),this[zg].addEventListener("user-interaction",this[Zg]),this[zg].addEventListener("pointer-change-start",this[ef]),this[zg].addEventListener("pointer-change-end",this[ef])}disconnectedCallback(){super.disconnectedCallback(),this[zg].removeEventListener("user-interaction",this[Zg]),this[zg].removeEventListener("pointer-change-start",this[ef]),this[zg].removeEventListener("pointer-change-end",this[ef])}updated(t){super.updated(t);const e=this[zg],i=this[Dx];if(t.has("cameraControls")&&(this.cameraControls?(e.enableInteraction(),this.interactionPrompt===Tg&&(this[nf]=!0)):(e.disableInteraction(),this[Xg]()),this[Bx].setAttribute("aria-label",this[_x])),t.has("disableZoom")&&(e.disableZoom=this.disableZoom),t.has("disablePan")&&(e.enablePan=!this.disablePan),t.has("disableTap")&&(e.enableTap=!this.disableTap),(t.has("interactionPrompt")||t.has("cameraControls")||t.has("src"))&&(this.interactionPrompt===Tg&&this.cameraControls&&!this[sf]?this[nf]=!0:this[Xg]()),t.has("interactionPromptStyle")&&(this[qg].style.opacity=this.interactionPromptStyle==Bg?"1":"0"),t.has("touchAction")){const t=this.touchAction;e.applyOptions({touchAction:t}),e.updateTouchActionStyle()}t.has("orbitSensitivity")&&(e.orbitSensitivity=this.orbitSensitivity),t.has("zoomSensitivity")&&(e.zoomSensitivity=this.zoomSensitivity),t.has("panSensitivity")&&(e.panSensitivity=this.panSensitivity),t.has("interpolationDecay")&&(e.setDamperDecayTime(this.interpolationDecay),i.setTargetDamperDecayTime(this.interpolationDecay)),t.has("a11y")&&this[Jg](),!0===this[cf]&&Promise.resolve().then((()=>{e.jumpToGoal(),i.jumpToGoal(),this[tf](),this[cf]=!1}))}async updateFraming(){const t=this[Dx],e=t.adjustedFoV(t.framedFoVDeg);await t.updateFraming();const i=t.adjustedFoV(t.framedFoVDeg),n=this[zg].getFieldOfView()/e;this[zg].setFieldOfView(i*n),this[uf]=!0,this.requestUpdate("maxFieldOfView"),this.requestUpdate("fieldOfView"),this.requestUpdate("minCameraOrbit"),this.requestUpdate("maxCameraOrbit"),this.requestUpdate("cameraOrbit"),await this.updateComplete}interact(t,e,i){const n=this[Bx],s=this[jg];if("1"===s[0].style.opacity)return void console.warn("interact() failed because an existing interaction is running.");const r=new Array;r.push({x:_g(e.x),y:_g(e.y)});const a=[{x:r[0].x(0),y:r[0].y(0)}];null!=i&&(r.push({x:_g(i.x),y:_g(i.y)}),a.push({x:r[1].x(0),y:r[1].y(0)}));let o=performance.now();const{width:l,height:c}=this[Dx],h=this.getBoundingClientRect(),u=t=>{for(const[e,i]of a.entries()){const{style:r}=s[e];r.transform=`translateX(${l*i.x}px) translateY(${c*i.y}px)`,"pointerdown"===t?r.opacity="1":"pointerup"===t&&(r.opacity="0");const a={pointerId:e-5678,pointerType:"touch",target:n,clientX:l*i.x+h.x,clientY:c*i.y+h.y,altKey:!0};n.dispatchEvent(new PointerEvent(t,a))}},d=()=>{const e=this[of];if(e!==Sf.AUTOMATIC||!n.isConnected){for(const t of this[jg])t.style.opacity="0";return u("pointercancel"),this.dispatchEvent(new CustomEvent("interact-stopped",{detail:{source:e}})),void document.removeEventListener("visibilitychange",p)}const i=Math.min(1,(performance.now()-o)/t);for(const[t,e]of a.entries())e.x=r[t].x(i),e.y=r[t].y(i);u("pointermove"),i<1?requestAnimationFrame(d):(u("pointerup"),this.dispatchEvent(new CustomEvent("interact-stopped",{detail:{source:Sf.AUTOMATIC}})),document.removeEventListener("visibilitychange",p))},p=()=>{let t=0;"hidden"===document.visibilityState?t=performance.now()-o:o=performance.now()-t};document.addEventListener("visibilitychange",p),u("pointerdown"),this[of]=Sf.AUTOMATIC,requestAnimationFrame(d)}[(e=Wg,i=qg,n=jg,s=Vg,r=af,a=rf,o=sf,l=nf,c=of,h=zg,u=lf,d=cf,p=hf,A=uf,m=Kg,pf)](t){const e=this[zg],i=this[Dx];i.framedFoVDeg=180*t[0]/Math.PI,e.changeSource=Sf.NONE,e.setFieldOfView(i.adjustedFoV(i.framedFoVDeg)),this[Zg]()}[df](t){const e=this[zg];if(this[uf]){const{theta:e,phi:i}=this.getCameraOrbit();t[0]=e,t[1]=i,this[uf]=!1}e.changeSource=Sf.NONE,e.setOrbit(t[0],t[1],t[2]),this[Zg]()}[mf](t){this[zg].applyOptions({minimumAzimuthalAngle:t[0],minimumPolarAngle:t[1],minimumRadius:t[2]}),this.jumpCameraToGoal()}[gf](t){this[zg].applyOptions({maximumAzimuthalAngle:t[0],maximumPolarAngle:t[1],maximumRadius:t[2]}),this[$g](t[2]),this.jumpCameraToGoal()}[ff](t){this[zg].applyOptions({minimumFieldOfView:180*t[0]/Math.PI}),this.jumpCameraToGoal()}[vf](t){const e=this[Dx].adjustedFoV(180*t[0]/Math.PI);this[zg].applyOptions({maximumFieldOfView:e}),this.jumpCameraToGoal()}[Af](t){const[e,i,n]=t;this[Nx].arRenderer.isPresenting||this[Dx].setTarget(e,i,n),this[zg].changeSource=Sf.NONE,this[Nx].arRenderer.updateTarget(),this[Zg]()}[Px](t,e){if(super[Px](t,e),this[Nx].isPresenting||!this[kx]())return;const i=this[zg],n=this[Dx],s=performance.now();if(this[nf]&&this.loaded&&s>this[wx]+this.interactionPromptThreshold&&(this[nf]=!1,this[rf]=s,this[Wg].classList.add("visible")),isFinite(this[rf])&&this.interactionPromptStyle===Rg){const t=(s-this[rf])/5e3%1,e=Sg(t),r=Cg(t);if(this[qg].style.opacity=`${r}`,e!==this[af]){const t=e*n.width*.05,s=(e-this[af])*Math.PI/16;this[qg].style.transform=`translateX(${t}px)`,i.changeSource=Sf.AUTOMATIC,i.adjustOrbit(s,0,0),this[af]=e}}const r=i.update(t,e),a=n.updateTarget(e);(r||a)&&this[tf]()}[Xg](){this[nf]=!1,this[Wg].classList.remove("visible"),this[rf]=1/0}[$g](t){const e=Math.max(this[Dx].farRadius(),t),i=Math.abs(2*e);this[zg].updateNearFar(0,i)}[Yg](){const{theta:t,phi:e}=this[zg].getCameraSpherical(this[lf]),i=(4+Math.floor((t%Hg+Gg)/Qg))%4,n=Math.floor(e/kg),s=`${Mg[n]}${Ig[i]}`,r=s;r in this[Kg]?this[Cx](this[Kg][r]):this[Cx](`View from stage ${s}`)}get[_x](){let t=". Use mouse, touch or arrow keys to move.";return"interaction-prompt"in this[Kg]&&(t=`. ${this[Kg]["interaction-prompt"]}`),super[_x].replace(/\.$/,"")+(this.cameraControls?t:"")}async[Fx](t){const e=this[zg],i=this[Dx],n=i.adjustedFoV(i.framedFoVDeg);super[Fx](t);const s=i.adjustedFoV(i.framedFoVDeg)/n,r=e.getFieldOfView()*(isFinite(s)?s:1);e.updateAspect(this[Dx].aspect),this.requestUpdate("maxFieldOfView",this.maxFieldOfView),await this.updateComplete,this[zg].setFieldOfView(r),this.jumpCameraToGoal()}[Ux](){super[Ux](),this[hf]?this[uf]=!0:this[hf]=!0,this.requestUpdate("maxFieldOfView",this.maxFieldOfView),this.requestUpdate("fieldOfView",this.fieldOfView),this.requestUpdate("minCameraOrbit",this.minCameraOrbit),this.requestUpdate("maxCameraOrbit",this.maxCameraOrbit),this.requestUpdate("cameraOrbit",this.cameraOrbit),this.requestUpdate("cameraTarget",this.cameraTarget),this.jumpCameraToGoal()}[(g=Zg,f=tf,v=ef,Jg)](){if("string"==typeof this.a11y)if(this.a11y.startsWith("{"))try{this[Kg]=JSON.parse(this.a11y)}catch(t){console.warn("Error parsing a11y JSON:",t)}else this.a11y.length>0?console.warn("Error not supported format, should be a JSON string:",this.a11y):this[Kg]={};else"object"==typeof this.a11y&&null!=this.a11y?this[Kg]=Object.assign({},this.a11y):this[Kg]={};this[Bx].setAttribute("aria-label",this[_x])}}return Eg([E({type:Boolean,attribute:"camera-controls"})],b.prototype,"cameraControls",void 0),Eg([bg({intrinsics:Ug,observeEffects:!0,updateHandler:df}),E({type:String,attribute:"camera-orbit",hasChanged:()=>!0})],b.prototype,"cameraOrbit",void 0),Eg([bg({intrinsics:Og,observeEffects:!0,updateHandler:Af}),E({type:String,attribute:"camera-target",hasChanged:()=>!0})],b.prototype,"cameraTarget",void 0),Eg([bg({intrinsics:Lg,observeEffects:!0,updateHandler:pf}),E({type:String,attribute:"field-of-view",hasChanged:()=>!0})],b.prototype,"fieldOfView",void 0),Eg([bg({intrinsics:Fg,updateHandler:mf}),E({type:String,attribute:"min-camera-orbit",hasChanged:()=>!0})],b.prototype,"minCameraOrbit",void 0),Eg([bg({intrinsics:Ng,updateHandler:gf}),E({type:String,attribute:"max-camera-orbit",hasChanged:()=>!0})],b.prototype,"maxCameraOrbit",void 0),Eg([bg({intrinsics:Pg,updateHandler:ff}),E({type:String,attribute:"min-field-of-view",hasChanged:()=>!0})],b.prototype,"minFieldOfView",void 0),Eg([bg({intrinsics:Lg,updateHandler:vf}),E({type:String,attribute:"max-field-of-view",hasChanged:()=>!0})],b.prototype,"maxFieldOfView",void 0),Eg([E({type:Number,attribute:"interaction-prompt-threshold"})],b.prototype,"interactionPromptThreshold",void 0),Eg([E({type:String,attribute:"interaction-prompt"})],b.prototype,"interactionPrompt",void 0),Eg([E({type:String,attribute:"interaction-prompt-style"})],b.prototype,"interactionPromptStyle",void 0),Eg([E({type:Number,attribute:"orbit-sensitivity"})],b.prototype,"orbitSensitivity",void 0),Eg([E({type:Number,attribute:"zoom-sensitivity"})],b.prototype,"zoomSensitivity",void 0),Eg([E({type:Number,attribute:"pan-sensitivity"})],b.prototype,"panSensitivity",void 0),Eg([E({type:String,attribute:"touch-action"})],b.prototype,"touchAction",void 0),Eg([E({type:Boolean,attribute:"disable-zoom"})],b.prototype,"disableZoom",void 0),Eg([E({type:Boolean,attribute:"disable-pan"})],b.prototype,"disablePan",void 0),Eg([E({type:Boolean,attribute:"disable-tap"})],b.prototype,"disableTap",void 0),Eg([E({type:Number,attribute:"interpolation-decay"})],b.prototype,"interpolationDecay",void 0),Eg([E()],b.prototype,"a11y",void 0),b})((t=>{var e,i,n,s,r,a,o,l,c,h;class u extends t{constructor(){super(...arguments),this.ar=!1,this.arInteraction=!0,this.arScale="auto",this.arUsdzMaxTextureSize="auto",this.arPlacement="floor",this.arAnchor=null,this.arModes="webxr scene-viewer quick-look",this.arVerticalOffset=0,this.iosSrc=null,this.xrEnvironment=!1,this[e]=!1,this[i]=this.shadowRoot.querySelector(".ar-button"),this[n]=document.createElement("a"),this[s]=new Set,this[r]=fE,this[a]=!1,this[o]=t=>{t.preventDefault(),this.activateAR()},this[l]=({status:t})=>{t!==Gf&&this[Nx].arRenderer.presentedScene!==this[Dx]||(this.setAttribute("ar-status",t),this.dispatchEvent(new CustomEvent("ar-status",{detail:{status:t}})),t===Gf?this.removeAttribute("ar-tracking"):t===Hf&&this.setAttribute("ar-tracking",Wf))},this[c]=({status:t})=>{this.setAttribute("ar-tracking",t),this.dispatchEvent(new CustomEvent("ar-tracking",{detail:{status:t}}))},this[h]=t=>{"_apple_ar_quicklook_button_tapped"==t.data&&this.dispatchEvent(new CustomEvent("quick-look-button-tapped"))}}get canActivateAR(){return this[EE]!==fE}connectedCallback(){super.connectedCallback(),this[Nx].arRenderer.addEventListener("status",this[ME]),this.setAttribute("ar-status",Gf),this[Nx].arRenderer.addEventListener("tracking",this[TE]),this[CE].addEventListener("message",this[BE])}disconnectedCallback(){super.disconnectedCallback(),this[Nx].arRenderer.removeEventListener("status",this[ME]),this[Nx].arRenderer.removeEventListener("tracking",this[TE]),this[CE].removeEventListener("message",this[BE])}update(t){var e;if(super.update(t),t.has("arScale")&&(this[Dx].canScale="fixed"!==this.arScale),t.has("arInteraction")&&(this[Nx].arRenderer.isInteractionEnabled=this.arInteraction),t.has("arPlacement")&&(this[Dx].updateShadow(),this[Lx]()),t.has("arAnchor")&&this[Nx].arRenderer.isPresenting&&this[Nx].arRenderer.updateAnchor(this.arAnchor),t.has("arVerticalOffset")&&this[Nx].arRenderer.setVerticalOffset(this.arVerticalOffset),t.has("arModes")&&(this[SE]=dE(this.arModes)),t.has("arAnchor")&&this[Nx].arRenderer.isPresenting){const t=this[Nx].arRenderer;"ceiling"===this.arPlacement&&!t.isObjectPlaced&&!(null===(e=t.presentedScene)||void 0===e?void 0:e.visible)||t.updateAnchor(this.arAnchor)}(t.has("ar")||t.has("arModes")||t.has("src")||t.has("iosSrc")||t.has("arUsdzMaxTextureSize"))&&this[RE]()}getAnchor(){const t=this[Nx].arRenderer;if(t.isPresenting&&t.isObjectPlaced){const e=t.currentPosition;return`${e.x} ${e.y} ${e.z}`}return"Model not placed in AR yet."}async activateAR(){switch(this[EE]){case AE:await this[xE]();break;case gE:await this[bE]();break;case mE:this[yE]();break;default:console.warn("No AR Mode can be activated. This is probably due to missing configuration or device capabilities")}}async[(e=_E,i=vE,n=CE,s=SE,r=EE,a=wE,o=IE,l=ME,c=TE,h=BE,RE)](){var t;let e=fE;if(this.ar){if(null!=this.src)for(const i of this[SE]){if("webxr"===i&&Ou&&!cE&&await this[Nx].arRenderer.supportsPresentation()){e=gE;break}if("scene-viewer"===i&&!hE&&(zu||navigator.userAgentData&&navigator.userAgentData.getHighEntropyValues&&(null===(t=(await navigator.userAgentData.getHighEntropyValues(["formFactor"])).formFactor)||void 0===t?void 0:t.includes("XR")))){e=mE;break}if("quick-look"===i&&Wu){e=AE;break}}e===fE&&null!=this.iosSrc&&Wu&&(e=AE)}if(e!==fE)this[vE].classList.add("enabled"),this[vE].addEventListener("click",this[IE]);else if(this[vE].classList.contains("enabled")){this[vE].removeEventListener("click",this[IE]),this[vE].classList.remove("enabled");const t=Vf;this.setAttribute("ar-status",t),this.dispatchEvent(new CustomEvent("ar-status",{detail:{status:t}}))}this[EE]=e}async[bE](){console.log("Attempting to present in AR with WebXR..."),await this[DE]();try{this[vE].removeEventListener("click",this[IE]);const{arRenderer:t}=this[Nx];t.isInteractionEnabled=this.arInteraction,"wall"===this.arPlacement?t.placementMode="wall":"ceiling"===this.arPlacement?t.placementMode="ceiling":t.placementMode="floor",t.anchorOffset=this.arAnchor,await t.present(this[Dx],this.xrEnvironment)}catch(t){console.warn("Error while trying to present in AR with WebXR"),console.error(t),await this[Nx].arRenderer.stopPresenting(),cE=!0,console.warn("Falling back to next ar-mode"),await this[RE](),this.activateAR()}finally{this[RE]()}}async[DE](){this.loaded||(this[wE]=!0,this[Ix](),await((t,e,i=null)=>new Promise((n=>{t.addEventListener(e,(function s(r){i&&!i(r)||(n(r),t.removeEventListener(e,s))}))})))(this,"load"),this[wE]=!1)}[Gx](){return super[Gx]()||this[wE]}[yE](){const t=self.location.toString(),e=new URL(t),i=new URL(this.src,t);i.hash&&(i.hash="");const n=new URLSearchParams(i.search);if(e.hash=uE,n.set("mode","ar_preferred"),n.has("disable_occlusion")||n.set("disable_occlusion","true"),"fixed"===this.arScale&&n.set("resizable","false"),"wall"===this.arPlacement&&n.set("enable_vertical_placement","true"),n.has("sound")){const e=new URL(n.get("sound"),t);n.set("sound",e.toString())}if(n.has("link")){const e=new URL(n.get("link"),t);n.set("link",e.toString())}const s=`intent://arvr.google.com/scene-viewer/1.2?${n.toString()+"&file="+encodeURIComponent(i.toString())}#Intent;scheme=https;package=com.google.android.googlequicksearchbox;action=android.intent.action.VIEW;S.browser_fallback_url=${encodeURIComponent(e.toString())};end;`;self.addEventListener("hashchange",(()=>{self.location.hash===uE&&(hE=!0,self.history.back(),console.warn("Error while trying to present in AR with Scene Viewer"),console.warn("Falling back to next ar-mode"),this[RE]())}),{once:!0}),this[CE].setAttribute("href",s),console.log("Attempting to present in AR with Scene Viewer..."),this[CE].click()}async[xE](){const t=!this.iosSrc;this[vE].classList.remove("enabled");const e=t?await this.prepareUSDZ():this.iosSrc,i=new URL(e,self.location.toString());if(t){const t=self.location.toString(),e=new URL(t),n=new URL(this.src,e);n.hash&&(i.hash=n.hash)}"fixed"===this.arScale&&(i.hash&&(i.hash+="&"),i.hash+="allowsContentScaling=0");const n=this[CE];n.setAttribute("rel","ar");const s=document.createElement("img");n.appendChild(s),n.setAttribute("href",i.toString()),t&&n.setAttribute("download","model.usdz"),n.style.display="none",n.isConnected||this.shadowRoot.appendChild(n),console.log("Attempting to present in AR with Quick Look..."),n.click(),n.removeChild(s),t&&URL.revokeObjectURL(e),this[vE].classList.add("enabled")}async prepareUSDZ(){const t=this[Ox].beginActivity("usdz-conversion");await this[DE]();const{model:e,shadow:i,target:n}=this[Dx];if(null==e)return"";let s=!1;null!=i&&(s=i.visible,i.visible=!1),t(.2);const r=new J_;n.remove(e),e.position.copy(n.position),e.updateWorldMatrix(!1,!0);const a=await r.parseAsync(e,{maxTextureSize:isNaN(this.arUsdzMaxTextureSize)?1/0:Math.max(parseInt(this.arUsdzMaxTextureSize),16)});e.position.set(0,0,0),n.add(e);const o=new Blob([a],{type:"model/vnd.usdz+zip"}),l=URL.createObjectURL(o);return t(1),null!=i&&(i.visible=s),l}}return lE([E({type:Boolean,attribute:"ar"})],u.prototype,"ar",void 0),lE([E({type:Boolean,attribute:"ar-interaction"})],u.prototype,"arInteraction",void 0),lE([E({type:String,attribute:"ar-scale"})],u.prototype,"arScale",void 0),lE([E({type:String,attribute:"ar-usdz-max-texture-size"})],u.prototype,"arUsdzMaxTextureSize",void 0),lE([E({type:String,attribute:"ar-placement"})],u.prototype,"arPlacement",void 0),lE([E({type:String,attribute:"ar-anchor"})],u.prototype,"arAnchor",void 0),lE([E({type:String,attribute:"ar-modes"})],u.prototype,"arModes",void 0),lE([E({type:Number,attribute:"ar-vertical-offset"})],u.prototype,"arVerticalOffset",void 0),lE([E({type:String,attribute:"ios-src"})],u.prototype,"iosSrc",void 0),lE([E({type:Boolean,attribute:"xr-environment"})],u.prototype,"xrEnvironment",void 0),u})((t=>{var e,i,n,s,r,a,o,l;class c extends t{static set dracoDecoderLocation(t){cA.setDRACODecoderLocation(t)}static get dracoDecoderLocation(){return cA.getDRACODecoderLocation()}static set ktx2TranscoderLocation(t){cA.setKTX2TranscoderLocation(t)}static get ktx2TranscoderLocation(){return cA.getKTX2TranscoderLocation()}static set meshoptDecoderLocation(t){cA.setMeshoptDecoderLocation(t)}static get meshoptDecoderLocation(){return cA.getMeshoptDecoderLocation()}static set lottieLoaderLocation(t){Gv.singleton.textureUtils.lottieLoaderUrl=t}static get lottieLoaderLocation(){return Gv.singleton.textureUtils.lottieLoaderUrl}static mapURLs(t){Gv.singleton.loader[aA].manager.setURLModifier(t)}dismissPoster(){this.loaded?this[GE]():(this[kE]=!0,this[Ix]())}showPoster(){const t=this[OE];if(t.classList.contains("show"))return;t.classList.add("show"),this[Bx].classList.remove("show");const e=this[QE];e.removeAttribute("tabindex"),e.removeAttribute("aria-hidden");const i=this.modelIsVisible;this[HE]=!1,this[xx](i)}getDimensions(){return Hx(this[Dx].size)}getBoundingBoxCenter(){return Hx(this[Dx].boundingBox.getCenter(new Ci))}constructor(...t){super(...t),this.poster=null,this.reveal=PE,this.loading=UE,this[e]=!1,this[i]=!1,this[n]=this.shadowRoot.querySelector(".slot.poster"),this[s]=this.shadowRoot.querySelector("#default-poster"),this[r]=this.shadowRoot.querySelector("#default-progress-bar > .bar"),this[a]=this[QE].getAttribute("aria-label"),this[o]=((t,e)=>{let i=null;const n=(...n)=>{null==i&&(t(...n),i=self.setTimeout((()=>i=null),e))};return n.flush=()=>{null!=i&&(self.clearTimeout(i),i=null)},n})((t=>{const e=this[NE].parentNode;requestAnimationFrame((()=>{this[NE].style.transform=`scaleX(${t})`,0===t&&(e.removeChild(this[NE]),e.appendChild(this[NE])),this[NE].classList.toggle("hide",1===t)}))}),100),this[l]=t=>{const e=t.detail.totalProgress,i=t.detail.reason;1===e&&(this[zE].flush(),this.loaded&&(this[kE]||this.reveal===PE)&&this[GE]()),this[zE](e),this.dispatchEvent(new CustomEvent("progress",{detail:{totalProgress:e,reason:i}}))};const c=self.ModelViewerElement||{},h=c.dracoDecoderLocation||"https://www.gstatic.com/draco/versioned/decoders/1.5.6/";cA.setDRACODecoderLocation(h);const u=c.ktx2TranscoderLocation||"https://www.gstatic.com/basis-universal/versioned/2021-04-15-ba1c3e4/";cA.setKTX2TranscoderLocation(u),c.meshoptDecoderLocation&&cA.setMeshoptDecoderLocation(c.meshoptDecoderLocation);const d=c.lottieLoaderLocation||"https://cdn.jsdelivr.net/npm/three@0.149.0/examples/jsm/loaders/LottieLoader.js";Gv.singleton.textureUtils.lottieLoaderUrl=d}connectedCallback(){super.connectedCallback(),this.loaded||this.showPoster(),this[Ox].addEventListener("progress",this[WE])}disconnectedCallback(){super.disconnectedCallback(),this[Ox].removeEventListener("progress",this[WE])}async updated(t){super.updated(t),t.has("poster")&&null!=this.poster&&(this[QE].style.backgroundImage=`url(${this.poster})`),t.has("alt")&&this[QE].setAttribute("aria-label",this[Ex]),(t.has("reveal")||t.has("loading"))&&this[Ix]()}[(e=HE,i=kE,n=OE,s=QE,r=NE,a=VE,o=zE,l=WE,Gx)](){return!!this.src&&(this[kE]||this.loading===FE||this.reveal===PE&&this[yx])}[GE](){this[kE]=!1;const t=this[OE];if(!t.classList.contains("show"))return;t.classList.remove("show"),this[Bx].classList.add("show");const e=this.modelIsVisible;this[HE]=!0,this[xx](e);const i=this.getRootNode();i&&i.activeElement===this&&this[Bx].focus();const n=this[QE];n.setAttribute("aria-hidden","true"),n.tabIndex=-1,this.dispatchEvent(new CustomEvent("poster-dismissed"))}[kx](){return super[kx]()&&this[HE]}}return LE([E({type:String})],c.prototype,"poster",void 0),LE([E({type:String})],c.prototype,"reveal",void 0),LE([E({type:String})],c.prototype,"loading",void 0),c})((t=>{var e;class i extends t{constructor(...t){super(t),this.autoplay=!1,this.animationName=void 0,this.animationCrossfadeDuration=300,this[e]=!0,this[Dx].subscribeMixerEvent("loop",(t=>{const e=t.action._loopCount,i=t.action._clip.name,n=t.action._clip.uuid,s=this[Dx].markedAnimations.find((t=>t.name===i));if(s){this[Dx].updateAnimationLoop(s.name,s.loopMode,s.repetitionCount);const t=this[Dx].markedAnimations.filter((t=>t.name!==i));this[Dx].markedAnimations=t}this.dispatchEvent(new CustomEvent("loop",{detail:{count:e,name:i,uuid:n}}))})),this[Dx].subscribeMixerEvent("finished",(t=>{if(this[Dx].appendedAnimations.includes(t.action._clip.name)){const e=this[Dx].appendedAnimations.filter((e=>e!==t.action._clip.name));this[Dx].appendedAnimations=e}else this[Yx]=!0;this.dispatchEvent(new CustomEvent("finished"))}))}get availableAnimations(){return this.loaded?this[Dx].animationNames:[]}get duration(){return this[Dx].duration}get paused(){return this[Yx]}get currentTime(){return this[Dx].animationTime}get appendedAnimations(){return this[Dx].appendedAnimations}set currentTime(t){this[Dx].animationTime=t,this[Lx]()}get timeScale(){return this[Dx].animationTimeScale}set timeScale(t){this[Dx].animationTimeScale=t}pause(){this[Yx]||(this[Yx]=!0,this.dispatchEvent(new CustomEvent("pause")))}play(t){this.availableAnimations.length>0&&(this[Yx]=!1,this[qx](t),this.dispatchEvent(new CustomEvent("play")))}appendAnimation(t,e){this.availableAnimations.length>0&&(this[Yx]=!1,this[jx](t,e),this.dispatchEvent(new CustomEvent("append-animation")))}detachAnimation(t,e){this.availableAnimations.length>0&&(this[Yx]=!1,this[Xx](t,e),this.dispatchEvent(new CustomEvent("detach-animation")))}[(e=Yx,Ux)](){super[Ux](),this[Yx]=!0,null!=this.animationName&&this[qx](),this.autoplay&&this.play()}[Px](t,e){super[Px](t,e),this[Yx]||!this[kx]()&&!this[Nx].isPresenting||(this[Dx].updateAnimation(e/1e3),this[Lx]())}updated(t){super.updated(t),t.has("autoplay")&&this.autoplay&&this.play(),t.has("animationName")&&this[qx]()}[qx](t=Kx){var e;const i=null!==(e=t.repetitions)&&void 0!==e?e:1/0,n=t.pingpong?Ae:1===i?de:pe;this[Dx].playAnimation(this.animationName,this.animationCrossfadeDuration/1e3,n,i),this[Yx]&&(this[Dx].updateAnimation(0),this[Lx]())}[jx](t="",e=Jx){var i;const n=null!==(i=e.repetitions)&&void 0!==i?i:1/0,s=e.pingpong?Ae:1===n?de:pe,r=!!e.repetitions||"pingpong"in e;this[Dx].appendAnimation(t||this.animationName,s,n,e.weight,e.timeScale,e.fade,e.warp,e.relativeWarp,e.time,r),this[Yx]&&(this[Dx].updateAnimation(0),this[Lx]())}[Xx](t="",e=$x){this[Dx].detachAnimation(t||this.animationName,e.fade),this[Yx]&&(this[Dx].updateAnimation(0),this[Lx]())}}return Wx([E({type:Boolean})],i.prototype,"autoplay",void 0),Wx([E({type:String,attribute:"animation-name"})],i.prototype,"animationName",void 0),Wx([E({type:Number,attribute:"animation-crossfade-duration"})],i.prototype,"animationCrossfadeDuration",void 0),i})(Vx))))))));customElements.define("model-viewer",ZE);export{ta as CanvasTexture,wo as FileLoader,Eo as Loader,ZE as ModelViewerElement,ct as NearestFilter};
//# sourceMappingURL=model-viewer.min.js.map
