@marcosremar/talking-head-avatar/dist/index.umd.js

React 3D avatar component with integrated chat and lip-sync capabilities

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   * @license
   * Copyright 2010-2024 Three.js Authors
   * SPDX-License-Identifier: MIT
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e={enabled:!0,workingColorSpace:yt,spaces:{},convert:function(e,t,n){return!1!==this.enabled&&t!==n&&t&&n?(this.spaces[t].transfer===bt&&(e.r=sn(e.r),e.g=sn(e.g),e.b=sn(e.b)),this.spaces[t].primaries!==this.spaces[n].primaries&&(e.applyMatrix3(this.spaces[t].toXYZ),e.applyMatrix3(this.spaces[n].fromXYZ)),this.spaces[n].transfer===bt&&(e.r=ln(e.r),e.g=ln(e.g),e.b=ln(e.b)),e):e},fromWorkingColorSpace:function(e,t){return this.convert(e,this.workingColorSpace,t)},toWorkingColorSpace:function(e,t){return this.convert(e,t,this.workingColorSpace)},getPrimaries:function(e){return this.spaces[e].primaries},getTransfer:function(e){return e===gt?_t:this.spaces[e].transfer},getLuminanceCoefficients:function(e,t=this.workingColorSpace){return e.fromArray(this.spaces[t].luminanceCoefficients)},define:function(e){Object.assign(this.spaces,e)},_getMatrix:function(e,t,n){return e.copy(this.spaces[t].toXYZ).multiply(this.spaces[n].fromXYZ)},_getDrawingBufferColorSpace:function(e){return this.spaces[e].outputColorSpaceConfig.drawingBufferColorSpace},_getUnpackColorSpace:function(e=this.workingColorSpace){return this.spaces[e].workingColorSpaceConfig.unpackColorSpace}},t=[.64,.33,.3,.6,.15,.06],n=[.2126,.7152,.0722],r=[.3127,.329];return e.define({[yt]:{primaries:t,whitePoint:r,transfer:_t,toXYZ:nn,fromXYZ:rn,luminanceCoefficients:n,workingColorSpaceConfig:{unpackColorSpace:vt},outputColorSpaceConfig:{drawingBufferColorSpace:vt}},[vt]:{primaries:t,whitePoint:r,transfer:bt,toXYZ:nn,fromXYZ:rn,luminanceCoefficients:n,outputColorSpaceConfig:{drawingBufferColorSpace:vt}}}),e}const on=an();function sn(e){return e<.04045?.0773993808*e:Math.pow(.9478672986*e+.0521327014,2.4)}function ln(e){return e<.0031308?12.92*e:1.055*Math.pow(e,.41666)-.055}let cn;class un{static getDataURL(e){if(/^data:/i.test(e.src))return e.src;if("undefined"==typeof HTMLCanvasElement)return e.src;let t;if(e instanceof HTMLCanvasElement)t=e;else{void 0===cn&&(cn=Jt("canvas")),cn.width=e.width,cn.height=e.height;const n=cn.getContext("2d");e instanceof ImageData?n.putImageData(e,0,0):n.drawImage(e,0,0,e.width,e.height),t=cn}return t.width>2048||t.height>2048?(console.warn("THREE.ImageUtils.getDataURL: Image converted to jpg for performance reasons",e),t.toDataURL("image/jpeg",.6)):t.toDataURL("image/png")}static sRGBToLinear(e){if("undefined"!=typeof HTMLImageElement&&e instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&e instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&e instanceof ImageBitmap){const t=Jt("canvas");t.width=e.width,t.height=e.height;const n=t.getContext("2d");n.drawImage(e,0,0,e.width,e.height);const r=n.getImageData(0,0,e.width,e.height),i=r.data;for(let e=0;e<i.length;e++)i[e]=255*sn(i[e]/255);return n.putImageData(r,0,0),t}if(e.data){const t=e.data.slice(0);for(let e=0;e<t.length;e++)t instanceof Uint8Array||t instanceof Uint8ClampedArray?t[e]=Math.floor(255*sn(t[e]/255)):t[e]=sn(t[e]);return{data:t,width:e.width,height:e.height}}return console.warn("THREE.ImageUtils.sRGBToLinear(): Unsupported image type. No color space conversion applied."),e}}let hn=0;class dn{constructor(e=null){this.isSource=!0,Object.defineProperty(this,"id",{value:hn++}),this.uuid=Bt(),this.data=e,this.dataReady=!0,this.version=0}set needsUpdate(e){!0===e&&this.version++}toJSON(e){const t=void 0===e||"string"==typeof e;if(!t&&void 0!==e.images[this.uuid])return e.images[this.uuid];const n={uuid:this.uuid,url:""},r=this.data;if(null!==r){let e;if(Array.isArray(r)){e=[];for(let t=0,n=r.length;t<n;t++)r[t].isDataTexture?e.push(fn(r[t].image)):e.push(fn(r[t]))}else e=fn(r);n.url=e}return t||(e.images[this.uuid]=n),n}}function fn(e){return"undefined"!=typeof HTMLImageElement&&e instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&e instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&e instanceof ImageBitmap?un.getDataURL(e):e.data?{data:Array.from(e.data),width:e.width,height:e.height,type:e.data.constructor.name}:(console.warn("THREE.Texture: Unable to serialize Texture."),{})}let pn=0;class mn extends Ut{constructor(e=mn.DEFAULT_IMAGE,t=mn.DEFAULT_MAPPING,n=1001,r=1001,i=1006,a=1008,o=1023,s=1009,l=mn.DEFAULT_ANISOTROPY,c=""){super(),this.isTexture=!0,Object.defineProperty(this,"id",{value:pn++}),this.uuid=Bt(),this.name="",this.source=new dn(e),this.mipmaps=[],this.mapping=t,this.channel=0,this.wrapS=n,this.wrapT=r,this.magFilter=i,this.minFilter=a,this.anisotropy=l,this.format=o,this.internalFormat=null,this.type=s,this.offset=new $t(0,0),this.repeat=new $t(1,1),this.center=new $t(0,0),this.rotation=0,this.matrixAutoUpdate=!0,this.matrix=new Xt,this.generateMipmaps=!0,this.premultiplyAlpha=!1,this.flipY=!0,this.unpackAlignment=4,this.colorSpace=c,this.userData={},this.version=0,this.onUpdate=null,this.isRenderTargetTexture=!1,this.pmremVersion=0}get image(){return this.source.data}set image(e=null){this.source.data=e}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(e){return this.name=e.name,this.source=e.source,this.mipmaps=e.mipmaps.slice(0),this.mapping=e.mapping,this.channel=e.channel,this.wrapS=e.wrapS,this.wrapT=e.wrapT,this.magFilter=e.magFilter,this.minFilter=e.minFilter,this.anisotropy=e.anisotropy,this.format=e.format,this.internalFormat=e.internalFormat,this.type=e.type,this.offset.copy(e.offset),this.repeat.copy(e.repeat),this.center.copy(e.center),this.rotation=e.rotation,this.matrixAutoUpdate=e.matrixAutoUpdate,this.matrix.copy(e.matrix),this.generateMipmaps=e.generateMipmaps,this.premultiplyAlpha=e.premultiplyAlpha,this.flipY=e.flipY,this.unpackAlignment=e.unpackAlignment,this.colorSpace=e.colorSpace,this.userData=JSON.parse(JSON.stringify(e.userData)),this.needsUpdate=!0,this}toJSON(e){const t=void 0===e||"string"==typeof e;if(!t&&void 0!==e.textures[this.uuid])return e.textures[this.uuid];const n={metadata:{version:4.6,type:"Texture",generator:"Texture.toJSON"},uuid:this.uuid,name:this.name,image:this.source.toJSON(e).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&&(n.userData=this.userData),t||(e.textures[this.uuid]=n),n}dispose(){this.dispatchEvent({type:"dispose"})}transformUv(e){if(this.mapping!==G)return e;if(e.applyMatrix3(this.matrix),e.x<0||e.x>1)switch(this.wrapS){case Y:e.x=e.x-Math.floor(e.x);break;case Z:e.x=e.x<0?0:1;break;case K:1===Math.abs(Math.floor(e.x)%2)?e.x=Math.ceil(e.x)-e.x:e.x=e.x-Math.floor(e.x)}if(e.y<0||e.y>1)switch(this.wrapT){case Y:e.y=e.y-Math.floor(e.y);break;case Z:e.y=e.y<0?0:1;break;case K:1===Math.abs(Math.floor(e.y)%2)?e.y=Math.ceil(e.y)-e.y:e.y=e.y-Math.floor(e.y)}return this.flipY&&(e.y=1-e.y),e}set needsUpdate(e){!0===e&&(this.version++,this.source.needsUpdate=!0)}set needsPMREMUpdate(e){!0===e&&this.pmremVersion++}}mn.DEFAULT_IMAGE=null,mn.DEFAULT_MAPPING=G,mn.DEFAULT_ANISOTROPY=1;class gn{constructor(e=0,t=0,n=0,r=1){gn.prototype.isVector4=!0,this.x=e,this.y=t,this.z=n,this.w=r}get width(){return this.z}set width(e){this.z=e}get height(){return this.w}set height(e){this.w=e}set(e,t,n,r){return this.x=e,this.y=t,this.z=n,this.w=r,this}setScalar(e){return this.x=e,this.y=e,this.z=e,this.w=e,this}setX(e){return this.x=e,this}setY(e){return this.y=e,this}setZ(e){return this.z=e,this}setW(e){return this.w=e,this}setComponent(e,t){switch(e){case 0:this.x=t;break;case 1:this.y=t;break;case 2:this.z=t;break;case 3:this.w=t;break;default:throw new Error("index is out of range: "+e)}return this}getComponent(e){switch(e){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: "+e)}}clone(){return new this.constructor(this.x,this.y,this.z,this.w)}copy(e){return this.x=e.x,this.y=e.y,this.z=e.z,this.w=void 0!==e.w?e.w:1,this}add(e){return this.x+=e.x,this.y+=e.y,this.z+=e.z,this.w+=e.w,this}addScalar(e){return this.x+=e,this.y+=e,this.z+=e,this.w+=e,this}addVectors(e,t){return this.x=e.x+t.x,this.y=e.y+t.y,this.z=e.z+t.z,this.w=e.w+t.w,this}addScaledVector(e,t){return this.x+=e.x*t,this.y+=e.y*t,this.z+=e.z*t,this.w+=e.w*t,this}sub(e){return this.x-=e.x,this.y-=e.y,this.z-=e.z,this.w-=e.w,this}subScalar(e){return this.x-=e,this.y-=e,this.z-=e,this.w-=e,this}subVectors(e,t){return this.x=e.x-t.x,this.y=e.y-t.y,this.z=e.z-t.z,this.w=e.w-t.w,this}multiply(e){return this.x*=e.x,this.y*=e.y,this.z*=e.z,this.w*=e.w,this}multiplyScalar(e){return this.x*=e,this.y*=e,this.z*=e,this.w*=e,this}applyMatrix4(e){const t=this.x,n=this.y,r=this.z,i=this.w,a=e.elements;return this.x=a[0]*t+a[4]*n+a[8]*r+a[12]*i,this.y=a[1]*t+a[5]*n+a[9]*r+a[13]*i,this.z=a[2]*t+a[6]*n+a[10]*r+a[14]*i,this.w=a[3]*t+a[7]*n+a[11]*r+a[15]*i,this}divide(e){return this.x/=e.x,this.y/=e.y,this.z/=e.z,this.w/=e.w,this}divideScalar(e){return this.multiplyScalar(1/e)}setAxisAngleFromQuaternion(e){this.w=2*Math.acos(e.w);const t=Math.sqrt(1-e.w*e.w);return t<1e-4?(this.x=1,this.y=0,this.z=0):(this.x=e.x/t,this.y=e.y/t,this.z=e.z/t),this}setAxisAngleFromRotationMatrix(e){let t,n,r,i;const a=.01,o=.1,s=e.elements,l=s[0],c=s[4],u=s[8],h=s[1],d=s[5],f=s[9],p=s[2],m=s[6],g=s[10];if(Math.abs(c-h)<a&&Math.abs(u-p)<a&&Math.abs(f-m)<a){if(Math.abs(c+h)<o&&Math.abs(u+p)<o&&Math.abs(f+m)<o&&Math.abs(l+d+g-3)<o)return this.set(1,0,0,0),this;t=Math.PI;const e=(l+1)/2,s=(d+1)/2,v=(g+1)/2,y=(c+h)/4,_=(u+p)/4,b=(f+m)/4;return e>s&&e>v?e<a?(n=0,r=.707106781,i=.707106781):(n=Math.sqrt(e),r=y/n,i=_/n):s>v?s<a?(n=.707106781,r=0,i=.707106781):(r=Math.sqrt(s),n=y/r,i=b/r):v<a?(n=.707106781,r=.707106781,i=0):(i=Math.sqrt(v),n=_/i,r=b/i),this.set(n,r,i,t),this}let v=Math.sqrt((m-f)*(m-f)+(u-p)*(u-p)+(h-c)*(h-c));return Math.abs(v)<.001&&(v=1),this.x=(m-f)/v,this.y=(u-p)/v,this.z=(h-c)/v,this.w=Math.acos((l+d+g-1)/2),this}setFromMatrixPosition(e){const t=e.elements;return this.x=t[12],this.y=t[13],this.z=t[14],this.w=t[15],this}min(e){return this.x=Math.min(this.x,e.x),this.y=Math.min(this.y,e.y),this.z=Math.min(this.z,e.z),this.w=Math.min(this.w,e.w),this}max(e){return this.x=Math.max(this.x,e.x),this.y=Math.max(this.y,e.y),this.z=Math.max(this.z,e.z),this.w=Math.max(this.w,e.w),this}clamp(e,t){return this.x=zt(this.x,e.x,t.x),this.y=zt(this.y,e.y,t.y),this.z=zt(this.z,e.z,t.z),this.w=zt(this.w,e.w,t.w),this}clampScalar(e,t){return this.x=zt(this.x,e,t),this.y=zt(this.y,e,t),this.z=zt(this.z,e,t),this.w=zt(this.w,e,t),this}clampLength(e,t){const n=this.length();return this.divideScalar(n||1).multiplyScalar(zt(n,e,t))}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(e){return this.x*e.x+this.y*e.y+this.z*e.z+this.w*e.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(e){return this.normalize().multiplyScalar(e)}lerp(e,t){return this.x+=(e.x-this.x)*t,this.y+=(e.y-this.y)*t,this.z+=(e.z-this.z)*t,this.w+=(e.w-this.w)*t,this}lerpVectors(e,t,n){return this.x=e.x+(t.x-e.x)*n,this.y=e.y+(t.y-e.y)*n,this.z=e.z+(t.z-e.z)*n,this.w=e.w+(t.w-e.w)*n,this}equals(e){return e.x===this.x&&e.y===this.y&&e.z===this.z&&e.w===this.w}fromArray(e,t=0){return this.x=e[t],this.y=e[t+1],this.z=e[t+2],this.w=e[t+3],this}toArray(e=[],t=0){return e[t]=this.x,e[t+1]=this.y,e[t+2]=this.z,e[t+3]=this.w,e}fromBufferAttribute(e,t){return this.x=e.getX(t),this.y=e.getY(t),this.z=e.getZ(t),this.w=e.getW(t),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 vn extends Ut{constructor(e=1,t=1,n={}){super(),this.isRenderTarget=!0,this.width=e,this.height=t,this.depth=1,this.scissor=new gn(0,0,e,t),this.scissorTest=!1,this.viewport=new gn(0,0,e,t);const r={width:e,height:t,depth:1};n=Object.assign({generateMipmaps:!1,internalFormat:null,minFilter:te,depthBuffer:!0,stencilBuffer:!1,resolveDepthBuffer:!0,resolveStencilBuffer:!0,depthTexture:null,samples:0,count:1},n);const i=new mn(r,n.mapping,n.wrapS,n.wrapT,n.magFilter,n.minFilter,n.format,n.type,n.anisotropy,n.colorSpace);i.flipY=!1,i.generateMipmaps=n.generateMipmaps,i.internalFormat=n.internalFormat,this.textures=[];const a=n.count;for(let e=0;e<a;e++)this.textures[e]=i.clone(),this.textures[e].isRenderTargetTexture=!0;this.depthBuffer=n.depthBuffer,this.stencilBuffer=n.stencilBuffer,this.resolveDepthBuffer=n.resolveDepthBuffer,this.resolveStencilBuffer=n.resolveStencilBuffer,this.depthTexture=n.depthTexture,this.samples=n.samples}get texture(){return this.textures[0]}set texture(e){this.textures[0]=e}setSize(e,t,n=1){if(this.width!==e||this.height!==t||this.depth!==n){this.width=e,this.height=t,this.depth=n;for(let r=0,i=this.textures.length;r<i;r++)this.textures[r].image.width=e,this.textures[r].image.height=t,this.textures[r].image.depth=n;this.dispose()}this.viewport.set(0,0,e,t),this.scissor.set(0,0,e,t)}clone(){return(new this.constructor).copy(this)}copy(e){this.width=e.width,this.height=e.height,this.depth=e.depth,this.scissor.copy(e.scissor),this.scissorTest=e.scissorTest,this.viewport.copy(e.viewport),this.textures.length=0;for(let t=0,n=e.textures.length;t<n;t++)this.textures[t]=e.textures[t].clone(),this.textures[t].isRenderTargetTexture=!0;const t=Object.assign({},e.texture.image);return this.texture.source=new dn(t),this.depthBuffer=e.depthBuffer,this.stencilBuffer=e.stencilBuffer,this.resolveDepthBuffer=e.resolveDepthBuffer,this.resolveStencilBuffer=e.resolveStencilBuffer,null!==e.depthTexture&&(this.depthTexture=e.depthTexture.clone()),this.samples=e.samples,this}dispose(){this.dispatchEvent({type:"dispose"})}}class yn extends vn{constructor(e=1,t=1,n={}){super(e,t,n),this.isWebGLRenderTarget=!0}}class _n extends mn{constructor(e=null,t=1,n=1,r=1){super(null),this.isDataArrayTexture=!0,this.image={data:e,width:t,height:n,depth:r},this.magFilter=J,this.minFilter=J,this.wrapR=Z,this.generateMipmaps=!1,this.flipY=!1,this.unpackAlignment=1,this.layerUpdates=new Set}addLayerUpdate(e){this.layerUpdates.add(e)}clearLayerUpdates(){this.layerUpdates.clear()}}class bn extends mn{constructor(e=null,t=1,n=1,r=1){super(null),this.isData3DTexture=!0,this.image={data:e,width:t,height:n,depth:r},this.magFilter=J,this.minFilter=J,this.wrapR=Z,this.generateMipmaps=!1,this.flipY=!1,this.unpackAlignment=1}}class xn{constructor(e=0,t=0,n=0,r=1){this.isQuaternion=!0,this._x=e,this._y=t,this._z=n,this._w=r}static slerpFlat(e,t,n,r,i,a,o){let s=n[r+0],l=n[r+1],c=n[r+2],u=n[r+3];const h=i[a+0],d=i[a+1],f=i[a+2],p=i[a+3];if(0===o)return e[t+0]=s,e[t+1]=l,e[t+2]=c,void(e[t+3]=u);if(1===o)return e[t+0]=h,e[t+1]=d,e[t+2]=f,void(e[t+3]=p);if(u!==p||s!==h||l!==d||c!==f){let e=1-o;const t=s*h+l*d+c*f+u*p,n=t>=0?1:-1,r=1-t*t;if(r>Number.EPSILON){const i=Math.sqrt(r),a=Math.atan2(i,t*n);e=Math.sin(e*a)/i,o=Math.sin(o*a)/i}const i=o*n;if(s=s*e+h*i,l=l*e+d*i,c=c*e+f*i,u=u*e+p*i,e===1-o){const e=1/Math.sqrt(s*s+l*l+c*c+u*u);s*=e,l*=e,c*=e,u*=e}}e[t]=s,e[t+1]=l,e[t+2]=c,e[t+3]=u}static multiplyQuaternionsFlat(e,t,n,r,i,a){const o=n[r],s=n[r+1],l=n[r+2],c=n[r+3],u=i[a],h=i[a+1],d=i[a+2],f=i[a+3];return e[t]=o*f+c*u+s*d-l*h,e[t+1]=s*f+c*h+l*u-o*d,e[t+2]=l*f+c*d+o*h-s*u,e[t+3]=c*f-o*u-s*h-l*d,e}get x(){return this._x}set x(e){this._x=e,this._onChangeCallback()}get y(){return this._y}set y(e){this._y=e,this._onChangeCallback()}get z(){return this._z}set z(e){this._z=e,this._onChangeCallback()}get w(){return this._w}set w(e){this._w=e,this._onChangeCallback()}set(e,t,n,r){return this._x=e,this._y=t,this._z=n,this._w=r,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._w)}copy(e){return this._x=e.x,this._y=e.y,this._z=e.z,this._w=e.w,this._onChangeCallback(),this}setFromEuler(e,t=!0){const n=e._x,r=e._y,i=e._z,a=e._order,o=Math.cos,s=Math.sin,l=o(n/2),c=o(r/2),u=o(i/2),h=s(n/2),d=s(r/2),f=s(i/2);switch(a){case"XYZ":this._x=h*c*u+l*d*f,this._y=l*d*u-h*c*f,this._z=l*c*f+h*d*u,this._w=l*c*u-h*d*f;break;case"YXZ":this._x=h*c*u+l*d*f,this._y=l*d*u-h*c*f,this._z=l*c*f-h*d*u,this._w=l*c*u+h*d*f;break;case"ZXY":this._x=h*c*u-l*d*f,this._y=l*d*u+h*c*f,this._z=l*c*f+h*d*u,this._w=l*c*u-h*d*f;break;case"ZYX":this._x=h*c*u-l*d*f,this._y=l*d*u+h*c*f,this._z=l*c*f-h*d*u,this._w=l*c*u+h*d*f;break;case"YZX":this._x=h*c*u+l*d*f,this._y=l*d*u+h*c*f,this._z=l*c*f-h*d*u,this._w=l*c*u-h*d*f;break;case"XZY":this._x=h*c*u-l*d*f,this._y=l*d*u-h*c*f,this._z=l*c*f+h*d*u,this._w=l*c*u+h*d*f;break;default:console.warn("THREE.Quaternion: .setFromEuler() encountered an unknown order: "+a)}return!0===t&&this._onChangeCallback(),this}setFromAxisAngle(e,t){const n=t/2,r=Math.sin(n);return this._x=e.x*r,this._y=e.y*r,this._z=e.z*r,this._w=Math.cos(n),this._onChangeCallback(),this}setFromRotationMatrix(e){const t=e.elements,n=t[0],r=t[4],i=t[8],a=t[1],o=t[5],s=t[9],l=t[2],c=t[6],u=t[10],h=n+o+u;if(h>0){const e=.5/Math.sqrt(h+1);this._w=.25/e,this._x=(c-s)*e,this._y=(i-l)*e,this._z=(a-r)*e}else if(n>o&&n>u){const e=2*Math.sqrt(1+n-o-u);this._w=(c-s)/e,this._x=.25*e,this._y=(r+a)/e,this._z=(i+l)/e}else if(o>u){const e=2*Math.sqrt(1+o-n-u);this._w=(i-l)/e,this._x=(r+a)/e,this._y=.25*e,this._z=(s+c)/e}else{const e=2*Math.sqrt(1+u-n-o);this._w=(a-r)/e,this._x=(i+l)/e,this._y=(s+c)/e,this._z=.25*e}return this._onChangeCallback(),this}setFromUnitVectors(e,t){let n=e.dot(t)+1;return n<Number.EPSILON?(n=0,Math.abs(e.x)>Math.abs(e.z)?(this._x=-e.y,this._y=e.x,this._z=0,this._w=n):(this._x=0,this._y=-e.z,this._z=e.y,this._w=n)):(this._x=e.y*t.z-e.z*t.y,this._y=e.z*t.x-e.x*t.z,this._z=e.x*t.y-e.y*t.x,this._w=n),this.normalize()}angleTo(e){return 2*Math.acos(Math.abs(zt(this.dot(e),-1,1)))}rotateTowards(e,t){const n=this.angleTo(e);if(0===n)return this;const r=Math.min(1,t/n);return this.slerp(e,r),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(e){return this._x*e._x+this._y*e._y+this._z*e._z+this._w*e._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 e=this.length();return 0===e?(this._x=0,this._y=0,this._z=0,this._w=1):(e=1/e,this._x=this._x*e,this._y=this._y*e,this._z=this._z*e,this._w=this._w*e),this._onChangeCallback(),this}multiply(e){return this.multiplyQuaternions(this,e)}premultiply(e){return this.multiplyQuaternions(e,this)}multiplyQuaternions(e,t){const n=e._x,r=e._y,i=e._z,a=e._w,o=t._x,s=t._y,l=t._z,c=t._w;return this._x=n*c+a*o+r*l-i*s,this._y=r*c+a*s+i*o-n*l,this._z=i*c+a*l+n*s-r*o,this._w=a*c-n*o-r*s-i*l,this._onChangeCallback(),this}slerp(e,t){if(0===t)return this;if(1===t)return this.copy(e);const n=this._x,r=this._y,i=this._z,a=this._w;let o=a*e._w+n*e._x+r*e._y+i*e._z;if(o<0?(this._w=-e._w,this._x=-e._x,this._y=-e._y,this._z=-e._z,o=-o):this.copy(e),o>=1)return this._w=a,this._x=n,this._y=r,this._z=i,this;const s=1-o*o;if(s<=Number.EPSILON){const e=1-t;return this._w=e*a+t*this._w,this._x=e*n+t*this._x,this._y=e*r+t*this._y,this._z=e*i+t*this._z,this.normalize(),this}const l=Math.sqrt(s),c=Math.atan2(l,o),u=Math.sin((1-t)*c)/l,h=Math.sin(t*c)/l;return this._w=a*u+this._w*h,this._x=n*u+this._x*h,this._y=r*u+this._y*h,this._z=i*u+this._z*h,this._onChangeCallback(),this}slerpQuaternions(e,t,n){return this.copy(e).slerp(t,n)}random(){const e=2*Math.PI*Math.random(),t=2*Math.PI*Math.random(),n=Math.random(),r=Math.sqrt(1-n),i=Math.sqrt(n);return this.set(r*Math.sin(e),r*Math.cos(e),i*Math.sin(t),i*Math.cos(t))}equals(e){return e._x===this._x&&e._y===this._y&&e._z===this._z&&e._w===this._w}fromArray(e,t=0){return this._x=e[t],this._y=e[t+1],this._z=e[t+2],this._w=e[t+3],this._onChangeCallback(),this}toArray(e=[],t=0){return e[t]=this._x,e[t+1]=this._y,e[t+2]=this._z,e[t+3]=this._w,e}fromBufferAttribute(e,t){return this._x=e.getX(t),this._y=e.getY(t),this._z=e.getZ(t),this._w=e.getW(t),this._onChangeCallback(),this}toJSON(){return this.toArray()}_onChange(e){return this._onChangeCallback=e,this}_onChangeCallback(){}*[Symbol.iterator](){yield this._x,yield this._y,yield this._z,yield this._w}}class Sn{constructor(e=0,t=0,n=0){Sn.prototype.isVector3=!0,this.x=e,this.y=t,this.z=n}set(e,t,n){return void 0===n&&(n=this.z),this.x=e,this.y=t,this.z=n,this}setScalar(e){return this.x=e,this.y=e,this.z=e,this}setX(e){return this.x=e,this}setY(e){return this.y=e,this}setZ(e){return this.z=e,this}setComponent(e,t){switch(e){case 0:this.x=t;break;case 1:this.y=t;break;case 2:this.z=t;break;default:throw new Error("index is out of range: "+e)}return this}getComponent(e){switch(e){case 0:return this.x;case 1:return this.y;case 2:return this.z;default:throw new Error("index is out of range: "+e)}}clone(){return new this.constructor(this.x,this.y,this.z)}copy(e){return this.x=e.x,this.y=e.y,this.z=e.z,this}add(e){return this.x+=e.x,this.y+=e.y,this.z+=e.z,this}addScalar(e){return this.x+=e,this.y+=e,this.z+=e,this}addVectors(e,t){return this.x=e.x+t.x,this.y=e.y+t.y,this.z=e.z+t.z,this}addScaledVector(e,t){return this.x+=e.x*t,this.y+=e.y*t,this.z+=e.z*t,this}sub(e){return this.x-=e.x,this.y-=e.y,this.z-=e.z,this}subScalar(e){return this.x-=e,this.y-=e,this.z-=e,this}subVectors(e,t){return this.x=e.x-t.x,this.y=e.y-t.y,this.z=e.z-t.z,this}multiply(e){return this.x*=e.x,this.y*=e.y,this.z*=e.z,this}multiplyScalar(e){return this.x*=e,this.y*=e,this.z*=e,this}multiplyVectors(e,t){return this.x=e.x*t.x,this.y=e.y*t.y,this.z=e.z*t.z,this}applyEuler(e){return this.applyQuaternion(Mn.setFromEuler(e))}applyAxisAngle(e,t){return this.applyQuaternion(Mn.setFromAxisAngle(e,t))}applyMatrix3(e){const t=this.x,n=this.y,r=this.z,i=e.elements;return this.x=i[0]*t+i[3]*n+i[6]*r,this.y=i[1]*t+i[4]*n+i[7]*r,this.z=i[2]*t+i[5]*n+i[8]*r,this}applyNormalMatrix(e){return this.applyMatrix3(e).normalize()}applyMatrix4(e){const t=this.x,n=this.y,r=this.z,i=e.elements,a=1/(i[3]*t+i[7]*n+i[11]*r+i[15]);return this.x=(i[0]*t+i[4]*n+i[8]*r+i[12])*a,this.y=(i[1]*t+i[5]*n+i[9]*r+i[13])*a,this.z=(i[2]*t+i[6]*n+i[10]*r+i[14])*a,this}applyQuaternion(e){const t=this.x,n=this.y,r=this.z,i=e.x,a=e.y,o=e.z,s=e.w,l=2*(a*r-o*n),c=2*(o*t-i*r),u=2*(i*n-a*t);return this.x=t+s*l+a*u-o*c,this.y=n+s*c+o*l-i*u,this.z=r+s*u+i*c-a*l,this}project(e){return this.applyMatrix4(e.matrixWorldInverse).applyMatrix4(e.projectionMatrix)}unproject(e){return this.applyMatrix4(e.projectionMatrixInverse).applyMatrix4(e.matrixWorld)}transformDirection(e){const t=this.x,n=this.y,r=this.z,i=e.elements;return this.x=i[0]*t+i[4]*n+i[8]*r,this.y=i[1]*t+i[5]*n+i[9]*r,this.z=i[2]*t+i[6]*n+i[10]*r,this.normalize()}divide(e){return this.x/=e.x,this.y/=e.y,this.z/=e.z,this}divideScalar(e){return this.multiplyScalar(1/e)}min(e){return this.x=Math.min(this.x,e.x),this.y=Math.min(this.y,e.y),this.z=Math.min(this.z,e.z),this}max(e){return this.x=Math.max(this.x,e.x),this.y=Math.max(this.y,e.y),this.z=Math.max(this.z,e.z),this}clamp(e,t){return this.x=zt(this.x,e.x,t.x),this.y=zt(this.y,e.y,t.y),this.z=zt(this.z,e.z,t.z),this}clampScalar(e,t){return this.x=zt(this.x,e,t),this.y=zt(this.y,e,t),this.z=zt(this.z,e,t),this}clampLength(e,t){const n=this.length();return this.divideScalar(n||1).multiplyScalar(zt(n,e,t))}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(e){return this.x*e.x+this.y*e.y+this.z*e.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(e){return this.normalize().multiplyScalar(e)}lerp(e,t){return this.x+=(e.x-this.x)*t,this.y+=(e.y-this.y)*t,this.z+=(e.z-this.z)*t,this}lerpVectors(e,t,n){return this.x=e.x+(t.x-e.x)*n,this.y=e.y+(t.y-e.y)*n,this.z=e.z+(t.z-e.z)*n,this}cross(e){return this.crossVectors(this,e)}crossVectors(e,t){const n=e.x,r=e.y,i=e.z,a=t.x,o=t.y,s=t.z;return this.x=r*s-i*o,this.y=i*a-n*s,this.z=n*o-r*a,this}projectOnVector(e){const t=e.lengthSq();if(0===t)return this.set(0,0,0);const n=e.dot(this)/t;return this.copy(e).multiplyScalar(n)}projectOnPlane(e){return wn.copy(this).projectOnVector(e),this.sub(wn)}reflect(e){return this.sub(wn.copy(e).multiplyScalar(2*this.dot(e)))}angleTo(e){const t=Math.sqrt(this.lengthSq()*e.lengthSq());if(0===t)return Math.PI/2;const n=this.dot(e)/t;return Math.acos(zt(n,-1,1))}distanceTo(e){return Math.sqrt(this.distanceToSquared(e))}distanceToSquared(e){const t=this.x-e.x,n=this.y-e.y,r=this.z-e.z;return t*t+n*n+r*r}manhattanDistanceTo(e){return Math.abs(this.x-e.x)+Math.abs(this.y-e.y)+Math.abs(this.z-e.z)}setFromSpherical(e){return this.setFromSphericalCoords(e.radius,e.phi,e.theta)}setFromSphericalCoords(e,t,n){const r=Math.sin(t)*e;return this.x=r*Math.sin(n),this.y=Math.cos(t)*e,this.z=r*Math.cos(n),this}setFromCylindrical(e){return this.setFromCylindricalCoords(e.radius,e.theta,e.y)}setFromCylindricalCoords(e,t,n){return this.x=e*Math.sin(t),this.y=n,this.z=e*Math.cos(t),this}setFromMatrixPosition(e){const t=e.elements;return this.x=t[12],this.y=t[13],this.z=t[14],this}setFromMatrixScale(e){const t=this.setFromMatrixColumn(e,0).length(),n=this.setFromMatrixColumn(e,1).length(),r=this.setFromMatrixColumn(e,2).length();return this.x=t,this.y=n,this.z=r,this}setFromMatrixColumn(e,t){return this.fromArray(e.elements,4*t)}setFromMatrix3Column(e,t){return this.fromArray(e.elements,3*t)}setFromEuler(e){return this.x=e._x,this.y=e._y,this.z=e._z,this}setFromColor(e){return this.x=e.r,this.y=e.g,this.z=e.b,this}equals(e){return e.x===this.x&&e.y===this.y&&e.z===this.z}fromArray(e,t=0){return this.x=e[t],this.y=e[t+1],this.z=e[t+2],this}toArray(e=[],t=0){return e[t]=this.x,e[t+1]=this.y,e[t+2]=this.z,e}fromBufferAttribute(e,t){return this.x=e.getX(t),this.y=e.getY(t),this.z=e.getZ(t),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this}randomDirection(){const e=Math.random()*Math.PI*2,t=2*Math.random()-1,n=Math.sqrt(1-t*t);return this.x=n*Math.cos(e),this.y=t,this.z=n*Math.sin(e),this}*[Symbol.iterator](){yield this.x,yield this.y,yield this.z}}const wn=new Sn,Mn=new xn;class En{constructor(e=new Sn(1/0,1/0,1/0),t=new Sn(-1/0,-1/0,-1/0)){this.isBox3=!0,this.min=e,this.max=t}set(e,t){return this.min.copy(e),this.max.copy(t),this}setFromArray(e){this.makeEmpty();for(let t=0,n=e.length;t<n;t+=3)this.expandByPoint(An.fromArray(e,t));return this}setFromBufferAttribute(e){this.makeEmpty();for(let t=0,n=e.count;t<n;t++)this.expandByPoint(An.fromBufferAttribute(e,t));return this}setFromPoints(e){this.makeEmpty();for(let t=0,n=e.length;t<n;t++)this.expandByPoint(e[t]);return this}setFromCenterAndSize(e,t){const n=An.copy(t).multiplyScalar(.5);return this.min.copy(e).sub(n),this.max.copy(e).add(n),this}setFromObject(e,t=!1){return this.makeEmpty(),this.expandByObject(e,t)}clone(){return(new this.constructor).copy(this)}copy(e){return this.min.copy(e.min),this.max.copy(e.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(e){return this.isEmpty()?e.set(0,0,0):e.addVectors(this.min,this.max).multiplyScalar(.5)}getSize(e){return this.isEmpty()?e.set(0,0,0):e.subVectors(this.max,this.min)}expandByPoint(e){return this.min.min(e),this.max.max(e),this}expandByVector(e){return this.min.sub(e),this.max.add(e),this}expandByScalar(e){return this.min.addScalar(-e),this.max.addScalar(e),this}expandByObject(e,t=!1){e.updateWorldMatrix(!1,!1);const n=e.geometry;if(void 0!==n){const r=n.getAttribute("position");if(!0===t&&void 0!==r&&!0!==e.isInstancedMesh)for(let t=0,n=r.count;t<n;t++)!0===e.isMesh?e.getVertexPosition(t,An):An.fromBufferAttribute(r,t),An.applyMatrix4(e.matrixWorld),this.expandByPoint(An);else void 0!==e.boundingBox?(null===e.boundingBox&&e.computeBoundingBox(),Cn.copy(e.boundingBox)):(null===n.boundingBox&&n.computeBoundingBox(),Cn.copy(n.boundingBox)),Cn.applyMatrix4(e.matrixWorld),this.union(Cn)}const r=e.children;for(let e=0,n=r.length;e<n;e++)this.expandByObject(r[e],t);return this}containsPoint(e){return e.x>=this.min.x&&e.x<=this.max.x&&e.y>=this.min.y&&e.y<=this.max.y&&e.z>=this.min.z&&e.z<=this.max.z}containsBox(e){return this.min.x<=e.min.x&&e.max.x<=this.max.x&&this.min.y<=e.min.y&&e.max.y<=this.max.y&&this.min.z<=e.min.z&&e.max.z<=this.max.z}getParameter(e,t){return t.set((e.x-this.min.x)/(this.max.x-this.min.x),(e.y-this.min.y)/(this.max.y-this.min.y),(e.z-this.min.z)/(this.max.z-this.min.z))}intersectsBox(e){return e.max.x>=this.min.x&&e.min.x<=this.max.x&&e.max.y>=this.min.y&&e.min.y<=this.max.y&&e.max.z>=this.min.z&&e.min.z<=this.max.z}intersectsSphere(e){return this.clampPoint(e.center,An),An.distanceToSquared(e.center)<=e.radius*e.radius}intersectsPlane(e){let t,n;return e.normal.x>0?(t=e.normal.x*this.min.x,n=e.normal.x*this.max.x):(t=e.normal.x*this.max.x,n=e.normal.x*this.min.x),e.normal.y>0?(t+=e.normal.y*this.min.y,n+=e.normal.y*this.max.y):(t+=e.normal.y*this.max.y,n+=e.normal.y*this.min.y),e.normal.z>0?(t+=e.normal.z*this.min.z,n+=e.normal.z*this.max.z):(t+=e.normal.z*this.max.z,n+=e.normal.z*this.min.z),t<=-e.constant&&n>=-e.constant}intersectsTriangle(e){if(this.isEmpty())return!1;this.getCenter(On),kn.subVectors(this.max,On),Rn.subVectors(e.a,On),Pn.subVectors(e.b,On),In.subVectors(e.c,On),Ln.subVectors(Pn,Rn),Dn.subVectors(In,Pn),Un.subVectors(Rn,In);let t=[0,-Ln.z,Ln.y,0,-Dn.z,Dn.y,0,-Un.z,Un.y,Ln.z,0,-Ln.x,Dn.z,0,-Dn.x,Un.z,0,-Un.x,-Ln.y,Ln.x,0,-Dn.y,Dn.x,0,-Un.y,Un.x,0];return!!Bn(t,Rn,Pn,In,kn)&&(t=[1,0,0,0,1,0,0,0,1],!!Bn(t,Rn,Pn,In,kn)&&(Nn.crossVectors(Ln,Dn),t=[Nn.x,Nn.y,Nn.z],Bn(t,Rn,Pn,In,kn)))}clampPoint(e,t){return t.copy(e).clamp(this.min,this.max)}distanceToPoint(e){return this.clampPoint(e,An).distanceTo(e)}getBoundingSphere(e){return this.isEmpty()?e.makeEmpty():(this.getCenter(e.center),e.radius=.5*this.getSize(An).length()),e}intersect(e){return this.min.max(e.min),this.max.min(e.max),this.isEmpty()&&this.makeEmpty(),this}union(e){return this.min.min(e.min),this.max.max(e.max),this}applyMatrix4(e){return this.isEmpty()||(Tn[0].set(this.min.x,this.min.y,this.min.z).applyMatrix4(e),Tn[1].set(this.min.x,this.min.y,this.max.z).applyMatrix4(e),Tn[2].set(this.min.x,this.max.y,this.min.z).applyMatrix4(e),Tn[3].set(this.min.x,this.max.y,this.max.z).applyMatrix4(e),Tn[4].set(this.max.x,this.min.y,this.min.z).applyMatrix4(e),Tn[5].set(this.max.x,this.min.y,this.max.z).applyMatrix4(e),Tn[6].set(this.max.x,this.max.y,this.min.z).applyMatrix4(e),Tn[7].set(this.max.x,this.max.y,this.max.z).applyMatrix4(e),this.setFromPoints(Tn)),this}translate(e){return this.min.add(e),this.max.add(e),this}equals(e){return e.min.equals(this.min)&&e.max.equals(this.max)}}const Tn=[new Sn,new Sn,new Sn,new Sn,new Sn,new Sn,new Sn,new Sn],An=new Sn,Cn=new En,Rn=new Sn,Pn=new Sn,In=new Sn,Ln=new Sn,Dn=new Sn,Un=new Sn,On=new Sn,kn=new Sn,Nn=new Sn,Fn=new Sn;function Bn(e,t,n,r,i){for(let a=0,o=e.length-3;a<=o;a+=3){Fn.fromArray(e,a);const o=i.x*Math.abs(Fn.x)+i.y*Math.abs(Fn.y)+i.z*Math.abs(Fn.z),s=t.dot(Fn),l=n.dot(Fn),c=r.dot(Fn);if(Math.max(-Math.max(s,l,c),Math.min(s,l,c))>o)return!1}return!0}const zn=new En,Vn=new Sn,Hn=new Sn;class Gn{constructor(e=new Sn,t=-1){this.isSphere=!0,this.center=e,this.radius=t}set(e,t){return this.center.copy(e),this.radius=t,this}setFromPoints(e,t){const n=this.center;void 0!==t?n.copy(t):zn.setFromPoints(e).getCenter(n);let r=0;for(let t=0,i=e.length;t<i;t++)r=Math.max(r,n.distanceToSquared(e[t]));return this.radius=Math.sqrt(r),this}copy(e){return this.center.copy(e.center),this.radius=e.radius,this}isEmpty(){return this.radius<0}makeEmpty(){return this.center.set(0,0,0),this.radius=-1,this}containsPoint(e){return e.distanceToSquared(this.center)<=this.radius*this.radius}distanceToPoint(e){return e.distanceTo(this.center)-this.radius}intersectsSphere(e){const t=this.radius+e.radius;return e.center.distanceToSquared(this.center)<=t*t}intersectsBox(e){return e.intersectsSphere(this)}intersectsPlane(e){return Math.abs(e.distanceToPoint(this.center))<=this.radius}clampPoint(e,t){const n=this.center.distanceToSquared(e);return t.copy(e),n>this.radius*this.radius&&(t.sub(this.center).normalize(),t.multiplyScalar(this.radius).add(this.center)),t}getBoundingBox(e){return this.isEmpty()?(e.makeEmpty(),e):(e.set(this.center,this.center),e.expandByScalar(this.radius),e)}applyMatrix4(e){return this.center.applyMatrix4(e),this.radius=this.radius*e.getMaxScaleOnAxis(),this}translate(e){return this.center.add(e),this}expandByPoint(e){if(this.isEmpty())return this.center.copy(e),this.radius=0,this;Vn.subVectors(e,this.center);const t=Vn.lengthSq();if(t>this.radius*this.radius){const e=Math.sqrt(t),n=.5*(e-this.radius);this.center.addScaledVector(Vn,n/e),this.radius+=n}return this}union(e){return e.isEmpty()?this:this.isEmpty()?(this.copy(e),this):(!0===this.center.equals(e.center)?this.radius=Math.max(this.radius,e.radius):(Hn.subVectors(e.center,this.center).setLength(e.radius),this.expandByPoint(Vn.copy(e.center).add(Hn)),this.expandByPoint(Vn.copy(e.center).sub(Hn))),this)}equals(e){return e.center.equals(this.center)&&e.radius===this.radius}clone(){return(new this.constructor).copy(this)}}const Wn=new Sn,jn=new Sn,$n=new Sn,Xn=new Sn,qn=new Sn,Yn=new Sn,Zn=new Sn;class Kn{constructor(e=new Sn,t=new Sn(0,0,-1)){this.origin=e,this.direction=t}set(e,t){return this.origin.copy(e),this.direction.copy(t),this}copy(e){return this.origin.copy(e.origin),this.direction.copy(e.direction),this}at(e,t){return t.copy(this.origin).addScaledVector(this.direction,e)}lookAt(e){return this.direction.copy(e).sub(this.origin).normalize(),this}recast(e){return this.origin.copy(this.at(e,Wn)),this}closestPointToPoint(e,t){t.subVectors(e,this.origin);const n=t.dot(this.direction);return n<0?t.copy(this.origin):t.copy(this.origin).addScaledVector(this.