artlabs-viewer/dist/model-viewer.3bb99d20.js

Web viewer SDK for artlas Platform

/**
 * @license
 * Copyright 2017 Google LLC
 * SPDX-License-Identifier: BSD-3-Clause
 */
const i$2=(i,e)=>"method"===e.kind&&e.descriptor&&!("value"in e.descriptor)?{...e,finisher(n){n.createProperty(e.key,i)}}:{kind:"field",key:Symbol(),placement:"own",descriptor:{},originalKey:e.key,initializer(){"function"==typeof e.initializer&&(this[e.key]=e.initializer.call(this))},finisher(n){n.createProperty(e.key,i)}};function n$8(n){return(t,o)=>void 0!==o?((i,e,n)=>{e.constructor.createProperty(n,i)})(n,t,o):i$2(n,t)}
/**
 * @license
 * Copyright 2021 Google LLC
 * SPDX-License-Identifier: BSD-3-Clause
 */window;
/**
 * @license
 * Copyright 2010-2023 Three.js Authors
 * SPDX-License-Identifier: MIT
 */
const NearestFilter=1003;class EventDispatcher{addEventListener(type,listener){void 0===this._listeners&&(this._listeners={});const listeners=this._listeners;void 0===listeners[type]&&(listeners[type]=[]),-1===listeners[type].indexOf(listener)&&listeners[type].push(listener)}hasEventListener(type,listener){if(void 0===this._listeners)return!1;const listeners=this._listeners;return void 0!==listeners[type]&&-1!==listeners[type].indexOf(listener)}removeEventListener(type,listener){if(void 0===this._listeners)return;const listenerArray=this._listeners[type];if(void 0!==listenerArray){const index=listenerArray.indexOf(listener);-1!==index&&listenerArray.splice(index,1)}}dispatchEvent(event){if(void 0===this._listeners)return;const listenerArray=this._listeners[event.type];if(void 0!==listenerArray){event.target=this;const array=listenerArray.slice(0);for(let i=0,l=array.length;l>i;i++)array[i].call(this,event);event.target=null}}}const _lut=["00","01","02","03","04","05","06","07","08","09","0a","0b","0c","0d","0e","0f","10","11","12","13","14","15","16","17","18","19","1a","1b","1c","1d","1e","1f","20","21","22","23","24","25","26","27","28","29","2a","2b","2c","2d","2e","2f","30","31","32","33","34","35","36","37","38","39","3a","3b","3c","3d","3e","3f","40","41","42","43","44","45","46","47","48","49","4a","4b","4c","4d","4e","4f","50","51","52","53","54","55","56","57","58","59","5a","5b","5c","5d","5e","5f","60","61","62","63","64","65","66","67","68","69","6a","6b","6c","6d","6e","6f","70","71","72","73","74","75","76","77","78","79","7a","7b","7c","7d","7e","7f","80","81","82","83","84","85","86","87","88","89","8a","8b","8c","8d","8e","8f","90","91","92","93","94","95","96","97","98","99","9a","9b","9c","9d","9e","9f","a0","a1","a2","a3","a4","a5","a6","a7","a8","a9","aa","ab","ac","ad","ae","af","b0","b1","b2","b3","b4","b5","b6","b7","b8","b9","ba","bb","bc","bd","be","bf","c0","c1","c2","c3","c4","c5","c6","c7","c8","c9","ca","cb","cc","cd","ce","cf","d0","d1","d2","d3","d4","d5","d6","d7","d8","d9","da","db","dc","dd","de","df","e0","e1","e2","e3","e4","e5","e6","e7","e8","e9","ea","eb","ec","ed","ee","ef","f0","f1","f2","f3","f4","f5","f6","f7","f8","f9","fa","fb","fc","fd","fe","ff"];let _seed=1234567;const DEG2RAD=Math.PI/180,RAD2DEG=180/Math.PI;function generateUUID(){const d0=4294967295*Math.random()|0,d1=4294967295*Math.random()|0,d2=4294967295*Math.random()|0,d3=4294967295*Math.random()|0;return(_lut[255&d0]+_lut[d0>>8&255]+_lut[d0>>16&255]+_lut[d0>>24&255]+"-"+_lut[255&d1]+_lut[d1>>8&255]+"-"+_lut[d1>>16&15|64]+_lut[d1>>24&255]+"-"+_lut[63&d2|128]+_lut[d2>>8&255]+"-"+_lut[d2>>16&255]+_lut[d2>>24&255]+_lut[255&d3]+_lut[d3>>8&255]+_lut[d3>>16&255]+_lut[d3>>24&255]).toLowerCase()}function clamp$1(value,min,max){return Math.max(min,Math.min(max,value))}function euclideanModulo(n,m){return(n%m+m)%m}function lerp$1(x,y,t){return(1-t)*x+t*y}function isPowerOfTwo(value){return 0==(value&value-1)&&0!==value}function floorPowerOfTwo(value){return Math.pow(2,Math.floor(Math.log(value)/Math.LN2))}function denormalize(value,array){switch(array.constructor){case Float32Array:return value;case Uint32Array:return value/4294967295;case Uint16Array:return value/65535;case Uint8Array:return value/255;case Int32Array:return Math.max(value/2147483647,-1);case Int16Array:return Math.max(value/32767,-1);case Int8Array:return Math.max(value/127,-1);default:throw Error("Invalid component type.")}}function normalize(value,array){switch(array.constructor){case Float32Array:return value;case Uint32Array:return Math.round(4294967295*value);case Uint16Array:return Math.round(65535*value);case Uint8Array:return Math.round(255*value);case Int32Array:return Math.round(2147483647*value);case Int16Array:return Math.round(32767*value);case Int8Array:return Math.round(127*value);default:throw Error("Invalid component type.")}}const MathUtils={DEG2RAD:DEG2RAD,RAD2DEG:RAD2DEG,generateUUID:generateUUID,clamp:clamp$1,euclideanModulo:euclideanModulo,mapLinear:function(x,a1,a2,b1,b2){return b1+(x-a1)*(b2-b1)/(a2-a1)},inverseLerp:function(x,y,value){return x!==y?(value-x)/(y-x):0},lerp:lerp$1,damp:function(x,y,lambda,dt){return lerp$1(x,y,1-Math.exp(-lambda*dt))},pingpong:function(x,length){return void 0===length&&(length=1),length-Math.abs(euclideanModulo(x,2*length)-length)},smoothstep:function(x,min,max){return x>min?max>x?(x=(x-min)/(max-min))*x*(3-2*x):1:0},smootherstep:function(x,min,max){return x>min?max>x?(x=(x-min)/(max-min))*x*x*(x*(6*x-15)+10):1:0},randInt:function(low,high){return low+Math.floor(Math.random()*(high-low+1))},randFloat:function(low,high){return low+Math.random()*(high-low)},randFloatSpread:function(range){return range*(.5-Math.random())},seededRandom:function(s){void 0!==s&&(_seed=s);let t=_seed+=1831565813;return t=Math.imul(t^t>>>15,1|t),t^=t+Math.imul(t^t>>>7,61|t),((t^t>>>14)>>>0)/4294967296},degToRad:function(degrees){return degrees*DEG2RAD},radToDeg:function(radians){return radians*RAD2DEG},isPowerOfTwo:isPowerOfTwo,ceilPowerOfTwo:function(value){return Math.pow(2,Math.ceil(Math.log(value)/Math.LN2))},floorPowerOfTwo:floorPowerOfTwo,setQuaternionFromProperEuler:function(q,a,b,c,order){const cos=Math.cos,sin=Math.sin,c2=cos(b/2),s2=sin(b/2),c13=cos((a+c)/2),s13=sin((a+c)/2),c1_3=cos((a-c)/2),s1_3=sin((a-c)/2),c3_1=cos((c-a)/2),s3_1=sin((c-a)/2);switch(order){case"XYX":q.set(c2*s13,s2*c1_3,s2*s1_3,c2*c13);break;case"YZY":q.set(s2*s1_3,c2*s13,s2*c1_3,c2*c13);break;case"ZXZ":q.set(s2*c1_3,s2*s1_3,c2*s13,c2*c13);break;case"XZX":q.set(c2*s13,s2*s3_1,s2*c3_1,c2*c13);break;case"YXY":q.set(s2*c3_1,c2*s13,s2*s3_1,c2*c13);break;case"ZYZ":q.set(s2*s3_1,s2*c3_1,c2*s13,c2*c13);break;default:console.warn("THREE.MathUtils: .setQuaternionFromProperEuler() encountered an unknown order: "+order)}},normalize:normalize,denormalize:denormalize};class Vector2{constructor(x,y){void 0===x&&(x=0),void 0===y&&(y=0),Vector2.prototype.isVector2=!0,this.x=x,this.y=y}get width(){return this.x}set width(value){this.x=value}get height(){return this.y}set height(value){this.y=value}set(x,y){return this.x=x,this.y=y,this}setScalar(scalar){return this.x=scalar,this.y=scalar,this}setX(x){return this.x=x,this}setY(y){return this.y=y,this}setComponent(index,value){switch(index){case 0:this.x=value;break;case 1:this.y=value;break;default:throw Error("index is out of range: "+index)}return this}getComponent(index){switch(index){case 0:return this.x;case 1:return this.y;default:throw Error("index is out of range: "+index)}}clone(){return new this.constructor(this.x,this.y)}copy(v){return this.x=v.x,this.y=v.y,this}add(v){return this.x+=v.x,this.y+=v.y,this}addScalar(s){return this.x+=s,this.y+=s,this}addVectors(a,b){return this.x=a.x+b.x,this.y=a.y+b.y,this}addScaledVector(v,s){return this.x+=v.x*s,this.y+=v.y*s,this}sub(v){return this.x-=v.x,this.y-=v.y,this}subScalar(s){return this.x-=s,this.y-=s,this}subVectors(a,b){return this.x=a.x-b.x,this.y=a.y-b.y,this}multiply(v){return this.x*=v.x,this.y*=v.y,this}multiplyScalar(scalar){return this.x*=scalar,this.y*=scalar,this}divide(v){return this.x/=v.x,this.y/=v.y,this}divideScalar(scalar){return this.multiplyScalar(1/scalar)}applyMatrix3(m){const x=this.x,y=this.y,e=m.elements;return this.x=e[0]*x+e[3]*y+e[6],this.y=e[1]*x+e[4]*y+e[7],this}min(v){return this.x=Math.min(this.x,v.x),this.y=Math.min(this.y,v.y),this}max(v){return this.x=Math.max(this.x,v.x),this.y=Math.max(this.y,v.y),this}clamp(min,max){return this.x=Math.max(min.x,Math.min(max.x,this.x)),this.y=Math.max(min.y,Math.min(max.y,this.y)),this}clampScalar(minVal,maxVal){return this.x=Math.max(minVal,Math.min(maxVal,this.x)),this.y=Math.max(minVal,Math.min(maxVal,this.y)),this}clampLength(min,max){const length=this.length();return this.divideScalar(length||1).multiplyScalar(Math.max(min,Math.min(max,length)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this}roundToZero(){return this.x=Math.trunc(this.x),this.y=Math.trunc(this.y),this}negate(){return this.x=-this.x,this.y=-this.y,this}dot(v){return this.x*v.x+this.y*v.y}cross(v){return this.x*v.y-this.y*v.x}lengthSq(){return this.x*this.x+this.y*this.y}length(){return Math.sqrt(this.x*this.x+this.y*this.y)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)}normalize(){return this.divideScalar(this.length()||1)}angle(){return Math.atan2(-this.y,-this.x)+Math.PI}angleTo(v){const denominator=Math.sqrt(this.lengthSq()*v.lengthSq());if(0===denominator)return Math.PI/2;const theta=this.dot(v)/denominator;return Math.acos(clamp$1(theta,-1,1))}distanceTo(v){return Math.sqrt(this.distanceToSquared(v))}distanceToSquared(v){const dx=this.x-v.x,dy=this.y-v.y;return dx*dx+dy*dy}manhattanDistanceTo(v){return Math.abs(this.x-v.x)+Math.abs(this.y-v.y)}setLength(length){return this.normalize().multiplyScalar(length)}lerp(v,alpha){return this.x+=(v.x-this.x)*alpha,this.y+=(v.y-this.y)*alpha,this}lerpVectors(v1,v2,alpha){return this.x=v1.x+(v2.x-v1.x)*alpha,this.y=v1.y+(v2.y-v1.y)*alpha,this}equals(v){return v.x===this.x&&v.y===this.y}fromArray(array,offset){return void 0===offset&&(offset=0),this.x=array[offset],this.y=array[offset+1],this}toArray(array,offset){return void 0===array&&(array=[]),void 0===offset&&(offset=0),array[offset]=this.x,array[offset+1]=this.y,array}fromBufferAttribute(attribute,index){return this.x=attribute.getX(index),this.y=attribute.getY(index),this}rotateAround(center,angle){const c=Math.cos(angle),s=Math.sin(angle),x=this.x-center.x,y=this.y-center.y;return this.x=x*c-y*s+center.x,this.y=x*s+y*c+center.y,this}random(){return this.x=Math.random(),this.y=Math.random(),this}*[Symbol.iterator](){yield this.x,yield this.y}}class Matrix3{constructor(n11,n12,n13,n21,n22,n23,n31,n32,n33){Matrix3.prototype.isMatrix3=!0,this.elements=[1,0,0,0,1,0,0,0,1],void 0!==n11&&this.set(n11,n12,n13,n21,n22,n23,n31,n32,n33)}set(n11,n12,n13,n21,n22,n23,n31,n32,n33){const te=this.elements;return te[0]=n11,te[1]=n21,te[2]=n31,te[3]=n12,te[4]=n22,te[5]=n32,te[6]=n13,te[7]=n23,te[8]=n33,this}identity(){return this.set(1,0,0,0,1,0,0,0,1),this}copy(m){const te=this.elements,me=m.elements;return te[0]=me[0],te[1]=me[1],te[2]=me[2],te[3]=me[3],te[4]=me[4],te[5]=me[5],te[6]=me[6],te[7]=me[7],te[8]=me[8],this}extractBasis(xAxis,yAxis,zAxis){return xAxis.setFromMatrix3Column(this,0),yAxis.setFromMatrix3Column(this,1),zAxis.setFromMatrix3Column(this,2),this}setFromMatrix4(m){const me=m.elements;return this.set(me[0],me[4],me[8],me[1],me[5],me[9],me[2],me[6],me[10]),this}multiply(m){return this.multiplyMatrices(this,m)}premultiply(m){return this.multiplyMatrices(m,this)}multiplyMatrices(a,b){const ae=a.elements,be=b.elements,te=this.elements,a11=ae[0],a12=ae[3],a13=ae[6],a21=ae[1],a22=ae[4],a23=ae[7],a31=ae[2],a32=ae[5],a33=ae[8],b11=be[0],b12=be[3],b13=be[6],b21=be[1],b22=be[4],b23=be[7],b31=be[2],b32=be[5],b33=be[8];return te[0]=a11*b11+a12*b21+a13*b31,te[3]=a11*b12+a12*b22+a13*b32,te[6]=a11*b13+a12*b23+a13*b33,te[1]=a21*b11+a22*b21+a23*b31,te[4]=a21*b12+a22*b22+a23*b32,te[7]=a21*b13+a22*b23+a23*b33,te[2]=a31*b11+a32*b21+a33*b31,te[5]=a31*b12+a32*b22+a33*b32,te[8]=a31*b13+a32*b23+a33*b33,this}multiplyScalar(s){const te=this.elements;return te[0]*=s,te[3]*=s,te[6]*=s,te[1]*=s,te[4]*=s,te[7]*=s,te[2]*=s,te[5]*=s,te[8]*=s,this}determinant(){const te=this.elements,a=te[0],b=te[1],c=te[2],d=te[3],e=te[4],f=te[5],g=te[6],h=te[7],i=te[8];return a*e*i-a*f*h-b*d*i+b*f*g+c*d*h-c*e*g}invert(){const te=this.elements,n11=te[0],n21=te[1],n31=te[2],n12=te[3],n22=te[4],n32=te[5],n13=te[6],n23=te[7],n33=te[8],t11=n33*n22-n32*n23,t12=n32*n13-n33*n12,t13=n23*n12-n22*n13,det=n11*t11+n21*t12+n31*t13;if(0===det)return this.set(0,0,0,0,0,0,0,0,0);const detInv=1/det;return te[0]=t11*detInv,te[1]=(n31*n23-n33*n21)*detInv,te[2]=(n32*n21-n31*n22)*detInv,te[3]=t12*detInv,te[4]=(n33*n11-n31*n13)*detInv,te[5]=(n31*n12-n32*n11)*detInv,te[6]=t13*detInv,te[7]=(n21*n13-n23*n11)*detInv,te[8]=(n22*n11-n21*n12)*detInv,this}transpose(){let tmp;const m=this.elements;return tmp=m[1],m[1]=m[3],m[3]=tmp,tmp=m[2],m[2]=m[6],m[6]=tmp,tmp=m[5],m[5]=m[7],m[7]=tmp,this}getNormalMatrix(matrix4){return this.setFromMatrix4(matrix4).invert().transpose()}transposeIntoArray(r){const m=this.elements;return r[0]=m[0],r[1]=m[3],r[2]=m[6],r[3]=m[1],r[4]=m[4],r[5]=m[7],r[6]=m[2],r[7]=m[5],r[8]=m[8],this}setUvTransform(tx,ty,sx,sy,rotation,cx,cy){const c=Math.cos(rotation),s=Math.sin(rotation);return this.set(sx*c,sx*s,-sx*(c*cx+s*cy)+cx+tx,-sy*s,sy*c,-sy*(-s*cx+c*cy)+cy+ty,0,0,1),this}scale(sx,sy){return this.premultiply(_m3.makeScale(sx,sy)),this}rotate(theta){return this.premultiply(_m3.makeRotation(-theta)),this}translate(tx,ty){return this.premultiply(_m3.makeTranslation(tx,ty)),this}makeTranslation(x,y){return x.isVector2?this.set(1,0,x.x,0,1,x.y,0,0,1):this.set(1,0,x,0,1,y,0,0,1),this}makeRotation(theta){const c=Math.cos(theta),s=Math.sin(theta);return this.set(c,-s,0,s,c,0,0,0,1),this}makeScale(x,y){return this.set(x,0,0,0,y,0,0,0,1),this}equals(matrix){const te=this.elements,me=matrix.elements;for(let i=0;9>i;i++)if(te[i]!==me[i])return!1;return!0}fromArray(array,offset){void 0===offset&&(offset=0);for(let i=0;9>i;i++)this.elements[i]=array[i+offset];return this}toArray(array,offset){void 0===array&&(array=[]),void 0===offset&&(offset=0);const te=this.elements;return array[offset]=te[0],array[offset+1]=te[1],array[offset+2]=te[2],array[offset+3]=te[3],array[offset+4]=te[4],array[offset+5]=te[5],array[offset+6]=te[6],array[offset+7]=te[7],array[offset+8]=te[8],array}clone(){return(new this.constructor).fromArray(this.elements)}}const _m3=new Matrix3;function arrayNeedsUint32(array){for(let i=array.length-1;i>=0;--i)if(array[i]>=65535)return!0;return!1}function createElementNS(name){return document.createElementNS("http://www.w3.org/1999/xhtml",name)}function createCanvasElement(){const canvas=createElementNS("canvas");return canvas.style.display="block",canvas}const _cache={};function warnOnce(message){message in _cache||(_cache[message]=!0,console.warn(message))}const LINEAR_SRGB_TO_LINEAR_DISPLAY_P3=(new Matrix3).set(.8224621,.177538,0,.0331941,.9668058,0,.0170827,.0723974,.9105199),LINEAR_DISPLAY_P3_TO_LINEAR_SRGB=(new Matrix3).set(1.2249401,-.2249404,0,-.0420569,1.0420571,0,-.0196376,-.0786361,1.0982735),COLOR_SPACES={"srgb-linear":{transfer:"linear",primaries:"rec709",toReference:color=>color,fromReference:color=>color},srgb:{transfer:"srgb",primaries:"rec709",toReference:color=>color.convertSRGBToLinear(),fromReference:color=>color.convertLinearToSRGB()},"display-p3-linear":{transfer:"linear",primaries:"p3",toReference:color=>color.applyMatrix3(LINEAR_DISPLAY_P3_TO_LINEAR_SRGB),fromReference:color=>color.applyMatrix3(LINEAR_SRGB_TO_LINEAR_DISPLAY_P3)},"display-p3":{transfer:"srgb",primaries:"p3",toReference:color=>color.convertSRGBToLinear().applyMatrix3(LINEAR_DISPLAY_P3_TO_LINEAR_SRGB),fromReference:color=>color.applyMatrix3(LINEAR_SRGB_TO_LINEAR_DISPLAY_P3).convertLinearToSRGB()}},SUPPORTED_WORKING_COLOR_SPACES=new Set(["srgb-linear","display-p3-linear"]),ColorManagement={enabled:!0,_workingColorSpace:"srgb-linear",get workingColorSpace(){return this._workingColorSpace},set workingColorSpace(colorSpace){if(!SUPPORTED_WORKING_COLOR_SPACES.has(colorSpace))throw Error(`Unsupported working color space, "${colorSpace}".`);this._workingColorSpace=colorSpace},convert:function(color,sourceColorSpace,targetColorSpace){return!1!==this.enabled&&sourceColorSpace!==targetColorSpace&&sourceColorSpace&&targetColorSpace?(0,COLOR_SPACES[targetColorSpace].fromReference)((0,COLOR_SPACES[sourceColorSpace].toReference)(color)):color},fromWorkingColorSpace:function(color,targetColorSpace){return this.convert(color,this._workingColorSpace,targetColorSpace)},toWorkingColorSpace:function(color,sourceColorSpace){return this.convert(color,sourceColorSpace,this._workingColorSpace)},getPrimaries:function(colorSpace){return COLOR_SPACES[colorSpace].primaries},getTransfer:function(colorSpace){return""===colorSpace?"linear":COLOR_SPACES[colorSpace].transfer}};function SRGBToLinear(c){return.04045>c?.0773993808*c:Math.pow(.9478672986*c+.0521327014,2.4)}function LinearToSRGB(c){return.0031308>c?12.92*c:1.055*Math.pow(c,.41666)-.055}let _canvas;class ImageUtils{static getDataURL(image){if(/^data:/i.test(image.src))return image.src;if("undefined"==typeof HTMLCanvasElement)return image.src;let canvas;if(image instanceof HTMLCanvasElement)canvas=image;else{void 0===_canvas&&(_canvas=createElementNS("canvas")),_canvas.width=image.width,_canvas.height=image.height;const context=_canvas.getContext("2d");image instanceof ImageData?context.putImageData(image,0,0):context.drawImage(image,0,0,image.width,image.height),canvas=_canvas}return canvas.width>2048||canvas.height>2048?(console.warn("THREE.ImageUtils.getDataURL: Image converted to jpg for performance reasons",image),canvas.toDataURL("image/jpeg",.6)):canvas.toDataURL("image/png")}static sRGBToLinear(image){if("undefined"!=typeof HTMLImageElement&&image instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&image instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&image instanceof ImageBitmap){const canvas=createElementNS("canvas");canvas.width=image.width,canvas.height=image.height;const context=canvas.getContext("2d");context.drawImage(image,0,0,image.width,image.height);const imageData=context.getImageData(0,0,image.width,image.height),data=imageData.data;for(let i=0;data.length>i;i++)data[i]=255*SRGBToLinear(data[i]/255);return context.putImageData(imageData,0,0),canvas}if(image.data){const data=image.data.slice(0);for(let i=0;data.length>i;i++)data[i]=data instanceof Uint8Array||data instanceof Uint8ClampedArray?Math.floor(255*SRGBToLinear(data[i]/255)):SRGBToLinear(data[i]);return{data:data,width:image.width,height:image.height}}return console.warn("THREE.ImageUtils.sRGBToLinear(): Unsupported image type. No color space conversion applied."),image}}let _sourceId=0;class Source{constructor(data){void 0===data&&(data=null),this.isSource=!0,Object.defineProperty(this,"id",{value:_sourceId++}),this.uuid=generateUUID(),this.data=data,this.version=0}set needsUpdate(value){!0===value&&this.version++}toJSON(meta){const isRootObject=void 0===meta||"string"==typeof meta;if(!isRootObject&&void 0!==meta.images[this.uuid])return meta.images[this.uuid];const output={uuid:this.uuid,url:""},data=this.data;if(null!==data){let url;if(Array.isArray(data)){url=[];for(let i=0,l=data.length;l>i;i++)url.push(serializeImage(data[i].isDataTexture?data[i].image:data[i]))}else url=serializeImage(data);output.url=url}return isRootObject||(meta.images[this.uuid]=output),output}}function serializeImage(image){return"undefined"!=typeof HTMLImageElement&&image instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&image instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&image instanceof ImageBitmap?ImageUtils.getDataURL(image):image.data?{data:Array.from(image.data),width:image.width,height:image.height,type:image.data.constructor.name}:(console.warn("THREE.Texture: Unable to serialize Texture."),{})}let _textureId=0;class Texture$1 extends EventDispatcher{constructor(image,mapping,wrapS,wrapT,magFilter,minFilter,format,type,anisotropy,colorSpace){void 0===image&&(image=Texture$1.DEFAULT_IMAGE),void 0===mapping&&(mapping=Texture$1.DEFAULT_MAPPING),void 0===wrapS&&(wrapS=1001),void 0===wrapT&&(wrapT=1001),void 0===magFilter&&(magFilter=1006),void 0===minFilter&&(minFilter=1008),void 0===format&&(format=1023),void 0===type&&(type=1009),void 0===anisotropy&&(anisotropy=Texture$1.DEFAULT_ANISOTROPY),void 0===colorSpace&&(colorSpace=""),super(),this.isTexture=!0,Object.defineProperty(this,"id",{value:_textureId++}),this.uuid=generateUUID(),this.name="",this.source=new Source(image),this.mipmaps=[],this.mapping=mapping,this.channel=0,this.wrapS=wrapS,this.wrapT=wrapT,this.magFilter=magFilter,this.minFilter=minFilter,this.anisotropy=anisotropy,this.format=format,this.internalFormat=null,this.type=type,this.offset=new Vector2(0,0),this.repeat=new Vector2(1,1),this.center=new Vector2(0,0),this.rotation=0,this.matrixAutoUpdate=!0,this.matrix=new Matrix3,this.generateMipmaps=!0,this.premultiplyAlpha=!1,this.flipY=!0,this.unpackAlignment=4,"string"==typeof colorSpace?this.colorSpace=colorSpace:(warnOnce("THREE.Texture: Property .encoding has been replaced by .colorSpace."),this.colorSpace=3001===colorSpace?"srgb":""),this.userData={},this.version=0,this.onUpdate=null,this.isRenderTargetTexture=!1,this.needsPMREMUpdate=!1}get image(){return this.source.data}set image(value){void 0===value&&(value=null),this.source.data=value}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(source){return this.name=source.name,this.source=source.source,this.mipmaps=source.mipmaps.slice(0),this.mapping=source.mapping,this.channel=source.channel,this.wrapS=source.wrapS,this.wrapT=source.wrapT,this.magFilter=source.magFilter,this.minFilter=source.minFilter,this.anisotropy=source.anisotropy,this.format=source.format,this.internalFormat=source.internalFormat,this.type=source.type,this.offset.copy(source.offset),this.repeat.copy(source.repeat),this.center.copy(source.center),this.rotation=source.rotation,this.matrixAutoUpdate=source.matrixAutoUpdate,this.matrix.copy(source.matrix),this.generateMipmaps=source.generateMipmaps,this.premultiplyAlpha=source.premultiplyAlpha,this.flipY=source.flipY,this.unpackAlignment=source.unpackAlignment,this.colorSpace=source.colorSpace,this.userData=JSON.parse(JSON.stringify(source.userData)),this.needsUpdate=!0,this}toJSON(meta){const isRootObject=void 0===meta||"string"==typeof meta;if(!isRootObject&&void 0!==meta.textures[this.uuid])return meta.textures[this.uuid];const output={metadata:{version:4.6,type:"Texture",generator:"Texture.toJSON"},uuid:this.uuid,name:this.name,image:this.source.toJSON(meta).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&&(output.userData=this.userData),isRootObject||(meta.textures[this.uuid]=output),output}dispose(){this.dispatchEvent({type:"dispose"})}transformUv(uv){if(300!==this.mapping)return uv;if(uv.applyMatrix3(this.matrix),0>uv.x||uv.x>1)switch(this.wrapS){case 1e3:uv.x=uv.x-Math.floor(uv.x);break;case 1001:uv.x=0>uv.x?0:1;break;case 1002:uv.x=1===Math.abs(Math.floor(uv.x)%2)?Math.ceil(uv.x)-uv.x:uv.x-Math.floor(uv.x)}if(0>uv.y||uv.y>1)switch(this.wrapT){case 1e3:uv.y=uv.y-Math.floor(uv.y);break;case 1001:uv.y=0>uv.y?0:1;break;case 1002:uv.y=1===Math.abs(Math.floor(uv.y)%2)?Math.ceil(uv.y)-uv.y:uv.y-Math.floor(uv.y)}return this.flipY&&(uv.y=1-uv.y),uv}set needsUpdate(value){!0===value&&(this.version++,this.source.needsUpdate=!0)}get encoding(){return warnOnce("THREE.Texture: Property .encoding has been replaced by .colorSpace."),"srgb"===this.colorSpace?3001:3e3}set encoding(encoding){warnOnce("THREE.Texture: Property .encoding has been replaced by .colorSpace."),this.colorSpace=3001===encoding?"srgb":""}}Texture$1.DEFAULT_IMAGE=null,Texture$1.DEFAULT_MAPPING=300,Texture$1.DEFAULT_ANISOTROPY=1;class Vector4{constructor(x,y,z,w){void 0===x&&(x=0),void 0===y&&(y=0),void 0===z&&(z=0),void 0===w&&(w=1),Vector4.prototype.isVector4=!0,this.x=x,this.y=y,this.z=z,this.w=w}get width(){return this.z}set width(value){this.z=value}get height(){return this.w}set height(value){this.w=value}set(x,y,z,w){return this.x=x,this.y=y,this.z=z,this.w=w,this}setScalar(scalar){return this.x=scalar,this.y=scalar,this.z=scalar,this.w=scalar,this}setX(x){return this.x=x,this}setY(y){return this.y=y,this}setZ(z){return this.z=z,this}setW(w){return this.w=w,this}setComponent(index,value){switch(index){case 0:this.x=value;break;case 1:this.y=value;break;case 2:this.z=value;break;case 3:this.w=value;break;default:throw Error("index is out of range: "+index)}return this}getComponent(index){switch(index){case 0:return this.x;case 1:return this.y;case 2:return this.z;case 3:return this.w;default:throw Error("index is out of range: "+index)}}clone(){return new this.constructor(this.x,this.y,this.z,this.w)}copy(v){return this.x=v.x,this.y=v.y,this.z=v.z,this.w=void 0!==v.w?v.w:1,this}add(v){return this.x+=v.x,this.y+=v.y,this.z+=v.z,this.w+=v.w,this}addScalar(s){return this.x+=s,this.y+=s,this.z+=s,this.w+=s,this}addVectors(a,b){return this.x=a.x+b.x,this.y=a.y+b.y,this.z=a.z+b.z,this.w=a.w+b.w,this}addScaledVector(v,s){return this.x+=v.x*s,this.y+=v.y*s,this.z+=v.z*s,this.w+=v.w*s,this}sub(v){return this.x-=v.x,this.y-=v.y,this.z-=v.z,this.w-=v.w,this}subScalar(s){return this.x-=s,this.y-=s,this.z-=s,this.w-=s,this}subVectors(a,b){return this.x=a.x-b.x,this.y=a.y-b.y,this.z=a.z-b.z,this.w=a.w-b.w,this}multiply(v){return this.x*=v.x,this.y*=v.y,this.z*=v.z,this.w*=v.w,this}multiplyScalar(scalar){return this.x*=scalar,this.y*=scalar,this.z*=scalar,this.w*=scalar,this}applyMatrix4(m){const x=this.x,y=this.y,z=this.z,w=this.w,e=m.elements;return this.x=e[0]*x+e[4]*y+e[8]*z+e[12]*w,this.y=e[1]*x+e[5]*y+e[9]*z+e[13]*w,this.z=e[2]*x+e[6]*y+e[10]*z+e[14]*w,this.w=e[3]*x+e[7]*y+e[11]*z+e[15]*w,this}divideScalar(scalar){return this.multiplyScalar(1/scalar)}setAxisAngleFromQuaternion(q){this.w=2*Math.acos(q.w);const s=Math.sqrt(1-q.w*q.w);return 1e-4>s?(this.x=1,this.y=0,this.z=0):(this.x=q.x/s,this.y=q.y/s,this.z=q.z/s),this}setAxisAngleFromRotationMatrix(m){let angle,x,y,z;const te=m.elements,m11=te[0],m12=te[4],m13=te[8],m21=te[1],m22=te[5],m23=te[9],m31=te[2],m32=te[6],m33=te[10];if(.01>Math.abs(m12-m21)&&.01>Math.abs(m13-m31)&&.01>Math.abs(m23-m32)){if(.1>Math.abs(m12+m21)&&.1>Math.abs(m13+m31)&&.1>Math.abs(m23+m32)&&.1>Math.abs(m11+m22+m33-3))return this.set(1,0,0,0),this;angle=Math.PI;const xx=(m11+1)/2,yy=(m22+1)/2,zz=(m33+1)/2,xy=(m12+m21)/4,xz=(m13+m31)/4,yz=(m23+m32)/4;return xx>yy&&xx>zz?.01>xx?(x=0,y=.707106781,z=.707106781):(x=Math.sqrt(xx),y=xy/x,z=xz/x):yy>zz?.01>yy?(x=.707106781,y=0,z=.707106781):(y=Math.sqrt(yy),x=xy/y,z=yz/y):.01>zz?(x=.707106781,y=.707106781,z=0):(z=Math.sqrt(zz),x=xz/z,y=yz/z),this.set(x,y,z,3.141592653589793),this}let s=Math.sqrt((m32-m23)*(m32-m23)+(m13-m31)*(m13-m31)+(m21-m12)*(m21-m12));return.001>Math.abs(s)&&(s=1),this.x=(m32-m23)/s,this.y=(m13-m31)/s,this.z=(m21-m12)/s,this.w=Math.acos((m11+m22+m33-1)/2),this}min(v){return this.x=Math.min(this.x,v.x),this.y=Math.min(this.y,v.y),this.z=Math.min(this.z,v.z),this.w=Math.min(this.w,v.w),this}max(v){return this.x=Math.max(this.x,v.x),this.y=Math.max(this.y,v.y),this.z=Math.max(this.z,v.z),this.w=Math.max(this.w,v.w),this}clamp(min,max){return this.x=Math.max(min.x,Math.min(max.x,this.x)),this.y=Math.max(min.y,Math.min(max.y,this.y)),this.z=Math.max(min.z,Math.min(max.z,this.z)),this.w=Math.max(min.w,Math.min(max.w,this.w)),this}clampScalar(minVal,maxVal){return this.x=Math.max(minVal,Math.min(maxVal,this.x)),this.y=Math.max(minVal,Math.min(maxVal,this.y)),this.z=Math.max(minVal,Math.min(maxVal,this.z)),this.w=Math.max(minVal,Math.min(maxVal,this.w)),this}clampLength(min,max){const length=this.length();return this.divideScalar(length||1).multiplyScalar(Math.max(min,Math.min(max,length)))}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(v){return this.x*v.x+this.y*v.y+this.z*v.z+this.w*v.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(length){return this.normalize().multiplyScalar(length)}lerp(v,alpha){return this.x+=(v.x-this.x)*alpha,this.y+=(v.y-this.y)*alpha,this.z+=(v.z-this.z)*alpha,this.w+=(v.w-this.w)*alpha,this}lerpVectors(v1,v2,alpha){return this.x=v1.x+(v2.x-v1.x)*alpha,this.y=v1.y+(v2.y-v1.y)*alpha,this.z=v1.z+(v2.z-v1.z)*alpha,this.w=v1.w+(v2.w-v1.w)*alpha,this}equals(v){return v.x===this.x&&v.y===this.y&&v.z===this.z&&v.w===this.w}fromArray(array,offset){return void 0===offset&&(offset=0),this.x=array[offset],this.y=array[offset+1],this.z=array[offset+2],this.w=array[offset+3],this}toArray(array,offset){return void 0===array&&(array=[]),void 0===offset&&(offset=0),array[offset]=this.x,array[offset+1]=this.y,array[offset+2]=this.z,array[offset+3]=this.w,array}fromBufferAttribute(attribute,index){return this.x=attribute.getX(index),this.y=attribute.getY(index),this.z=attribute.getZ(index),this.w=attribute.getW(index),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 RenderTarget extends EventDispatcher{constructor(width,height,options){void 0===width&&(width=1),void 0===height&&(height=1),void 0===options&&(options={}),super(),this.isRenderTarget=!0,this.width=width,this.height=height,this.depth=1,this.scissor=new Vector4(0,0,width,height),this.scissorTest=!1,this.viewport=new Vector4(0,0,width,height);const image={width:width,height:height,depth:1};void 0!==options.encoding&&(warnOnce("THREE.WebGLRenderTarget: option.encoding has been replaced by option.colorSpace."),options.colorSpace=3001===options.encoding?"srgb":""),options=Object.assign({generateMipmaps:!1,internalFormat:null,minFilter:1006,depthBuffer:!0,stencilBuffer:!1,depthTexture:null,samples:0},options),this.texture=new Texture$1(image,options.mapping,options.wrapS,options.wrapT,options.magFilter,options.minFilter,options.format,options.type,options.anisotropy,options.colorSpace),this.texture.isRenderTargetTexture=!0,this.texture.flipY=!1,this.texture.generateMipmaps=options.generateMipmaps,this.texture.internalFormat=options.internalFormat,this.depthBuffer=options.depthBuffer,this.stencilBuffer=options.stencilBuffer,this.depthTexture=options.depthTexture,this.samples=options.samples}setSize(width,height,depth){void 0===depth&&(depth=1),this.width===width&&this.height===height&&this.depth===depth||(this.width=width,this.height=height,this.depth=depth,this.texture.image.width=width,this.texture.image.height=height,this.texture.image.depth=depth,this.dispose()),this.viewport.set(0,0,width,height),this.scissor.set(0,0,width,height)}clone(){return(new this.constructor).copy(this)}copy(source){this.width=source.width,this.height=source.height,this.depth=source.depth,this.scissor.copy(source.scissor),this.scissorTest=source.scissorTest,this.viewport.copy(source.viewport),this.texture=source.texture.clone(),this.texture.isRenderTargetTexture=!0;const image=Object.assign({},source.texture.image);return this.texture.source=new Source(image),this.depthBuffer=source.depthBuffer,this.stencilBuffer=source.stencilBuffer,null!==source.depthTexture&&(this.depthTexture=source.depthTexture.clone()),this.samples=source.samples,this}dispose(){this.dispatchEvent({type:"dispose"})}}class WebGLRenderTarget extends RenderTarget{constructor(width,height,options){void 0===width&&(width=1),void 0===height&&(height=1),void 0===options&&(options={}),super(width,height,options),this.isWebGLRenderTarget=!0}}class DataArrayTexture extends Texture$1{constructor(data,width,height,depth){void 0===data&&(data=null),void 0===width&&(width=1),void 0===height&&(height=1),void 0===depth&&(depth=1),super(null),this.isDataArrayTexture=!0,this.image={data:data,width:width,height:height,depth:depth},this.magFilter=1003,this.minFilter=1003,this.wrapR=1001,this.generateMipmaps=!1,this.flipY=!1,this.unpackAlignment=1}}class Data3DTexture extends Texture$1{constructor(data,width,height,depth){void 0===data&&(data=null),void 0===width&&(width=1),void 0===height&&(height=1),void 0===depth&&(depth=1),super(null),this.isData3DTexture=!0,this.image={data:data,width:width,height:height,depth:depth},this.magFilter=1003,this.minFilter=1003,this.wrapR=1001,this.generateMipmaps=!1,this.flipY=!1,this.unpackAlignment=1}}class Quaternion{constructor(x,y,z,w){void 0===x&&(x=0),void 0===y&&(y=0),void 0===z&&(z=0),void 0===w&&(w=1),this.isQuaternion=!0,this._x=x,this._y=y,this._z=z,this._w=w}static slerpFlat(dst,dstOffset,src0,srcOffset0,src1,srcOffset1,t){let x0=src0[srcOffset0+0],y0=src0[srcOffset0+1],z0=src0[srcOffset0+2],w0=src0[srcOffset0+3];const x1=src1[srcOffset1+0],y1=src1[srcOffset1+1],z1=src1[srcOffset1+2],w1=src1[srcOffset1+3];if(0===t)return dst[dstOffset+0]=x0,dst[dstOffset+1]=y0,dst[dstOffset+2]=z0,void(dst[dstOffset+3]=w0);if(1===t)return dst[dstOffset+0]=x1,dst[dstOffset+1]=y1,dst[dstOffset+2]=z1,void(dst[dstOffset+3]=w1);if(w0!==w1||x0!==x1||y0!==y1||z0!==z1){let s=1-t;const cos=x0*x1+y0*y1+z0*z1+w0*w1,dir=0>cos?-1:1,sqrSin=1-cos*cos;if(sqrSin>Number.EPSILON){const sin=Math.sqrt(sqrSin),len=Math.atan2(sin,cos*dir);s=Math.sin(s*len)/sin,t=Math.sin(t*len)/sin}const tDir=t*dir;if(x0=x0*s+x1*tDir,y0=y0*s+y1*tDir,z0=z0*s+z1*tDir,w0=w0*s+w1*tDir,s===1-t){const f=1/Math.sqrt(x0*x0+y0*y0+z0*z0+w0*w0);x0*=f,y0*=f,z0*=f,w0*=f}}dst[dstOffset]=x0,dst[dstOffset+1]=y0,dst[dstOffset+2]=z0,dst[dstOffset+3]=w0}static multiplyQuaternionsFlat(dst,dstOffset,src0,srcOffset0,src1,srcOffset1){const x0=src0[srcOffset0],y0=src0[srcOffset0+1],z0=src0[srcOffset0+2],w0=src0[srcOffset0+3],x1=src1[srcOffset1],y1=src1[srcOffset1+1],z1=src1[srcOffset1+2],w1=src1[srcOffset1+3];return dst[dstOffset]=x0*w1+w0*x1+y0*z1-z0*y1,dst[dstOffset+1]=y0*w1+w0*y1+z0*x1-x0*z1,dst[dstOffset+2]=z0*w1+w0*z1+x0*y1-y0*x1,dst[dstOffset+3]=w0*w1-x0*x1-y0*y1-z0*z1,dst}get x(){return this._x}set x(value){this._x=value,this._onChangeCallback()}get y(){return this._y}set y(value){this._y=value,this._onChangeCallback()}get z(){return this._z}set z(value){this._z=value,this._onChangeCallback()}get w(){return this._w}set w(value){this._w=value,this._onChangeCallback()}set(x,y,z,w){return this._x=x,this._y=y,this._z=z,this._w=w,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._w)}copy(quaternion){return this._x=quaternion.x,this._y=quaternion.y,this._z=quaternion.z,this._w=quaternion.w,this._onChangeCallback(),this}setFromEuler(euler,update){void 0===update&&(update=!0);const x=euler._x,y=euler._y,z=euler._z,order=euler._order,cos=Math.cos,sin=Math.sin,c1=cos(x/2),c2=cos(y/2),c3=cos(z/2),s1=sin(x/2),s2=sin(y/2),s3=sin(z/2);switch(order){case"XYZ":this._x=s1*c2*c3+c1*s2*s3,this._y=c1*s2*c3-s1*c2*s3,this._z=c1*c2*s3+s1*s2*c3,this._w=c1*c2*c3-s1*s2*s3;break;case"YXZ":this._x=s1*c2*c3+c1*s2*s3,this._y=c1*s2*c3-s1*c2*s3,this._z=c1*c2*s3-s1*s2*c3,this._w=c1*c2*c3+s1*s2*s3;break;case"ZXY":this._x=s1*c2*c3-c1*s2*s3,this._y=c1*s2*c3+s1*c2*s3,this._z=c1*c2*s3+s1*s2*c3,this._w=c1*c2*c3-s1*s2*s3;break;case"ZYX":this._x=s1*c2*c3-c1*s2*s3,this._y=c1*s2*c3+s1*c2*s3,this._z=c1*c2*s3-s1*s2*c3,this._w=c1*c2*c3+s1*s2*s3;break;case"YZX":this._x=s1*c2*c3+c1*s2*s3,this._y=c1*s2*c3+s1*c2*s3,this._z=c1*c2*s3-s1*s2*c3,this._w=c1*c2*c3-s1*s2*s3;break;case"XZY":this._x=s1*c2*c3-c1*s2*s3,this._y=c1*s2*c3-s1*c2*s3,this._z=c1*c2*s3+s1*s2*c3,this._w=c1*c2*c3+s1*s2*s3;break;default:console.warn("THREE.Quaternion: .setFromEuler() encountered an unknown order: "+order)}return!0===update&&this._onChangeCallback(),this}setFromAxisAngle(axis,angle){const halfAngle=angle/2,s=Math.sin(halfAngle);return this._x=axis.x*s,this._y=axis.y*s,this._z=axis.z*s,this._w=Math.cos(halfAngle),this._onChangeCallback(),this}setFromRotationMatrix(m){const te=m.elements,m11=te[0],m12=te[4],m13=te[8],m21=te[1],m22=te[5],m23=te[9],m31=te[2],m32=te[6],m33=te[10],trace=m11+m22+m33;if(trace>0){const s=.5/Math.sqrt(trace+1);this._w=.25/s,this._x=(m32-m23)*s,this._y=(m13-m31)*s,this._z=(m21-m12)*s}else if(m11>m22&&m11>m33){const s=2*Math.sqrt(1+m11-m22-m33);this._w=(m32-m23)/s,this._x=.25*s,this._y=(m12+m21)/s,this._z=(m13+m31)/s}else if(m22>m33){const s=2*Math.sqrt(1+m22-m11-m33);this._w=(m13-m31)/s,this._x=(m12+m21)/s,this._y=.25*s,this._z=(m23+m32)/s}else{const s=2*Math.sqrt(1+m33-m11-m22);this._w=(m21-m12)/s,this._x=(m13+m31)/s,this._y=(m23+m32)/s,this._z=.25*s}return this._onChangeCallback(),this}setFromUnitVectors(vFrom,vTo){let r=vFrom.dot(vTo)+1;return Number.EPSILON>r?(r=0,Math.abs(vFrom.x)>Math.abs(vFrom.z)?(this._x=-vFrom.y,this._y=vFrom.x,this._z=0,this._w=r):(this._x=0,this._y=-vFrom.z,this._z=vFrom.y,this._w=r)):(this._x=vFrom.y*vTo.z-vFrom.z*vTo.y,this._y=vFrom.z*vTo.x-vFrom.x*vTo.z,this._z=vFrom.x*vTo.y-vFrom.y*vTo.x,this._w=r),this.normalize()}angleTo(q){return 2*Math.acos(Math.abs(clamp$1(this.dot(q),-1,1)))}rotateTowards(q,step){const angle=this.angleTo(q);return 0===angle||this.slerp(q,Math.min(1,step/angle)),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(v){return this._x*v._x+this._y*v._y+this._z*v._z+this._w*v._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 l=this.length();return 0===l?(this._x=0,this._y=0,this._z=0,this._w=1):(l=1/l,this._x=this._x*l,this._y=this._y*l,this._z=this._z*l,this._w=this._w*l),this._onChangeCallback(),this}multiply(q){return this.multiplyQuaternions(this,q)}premultiply(q){return this.multiplyQuaternions(q,this)}multiplyQuaternions(a,b){const qax=a._x,qay=a._y,qaz=a._z,qaw=a._w,qbx=b._x,qby=b._y,qbz=b._z,qbw=b._w;return this._x=qax*qbw+qaw*qbx+qay*qbz-qaz*qby,this._y=qay*qbw+qaw*qby+qaz*qbx-qax*qbz,this._z=qaz*qbw+qaw*qbz+qax*qby-qay*qbx,this._w=qaw*qbw-qax*qbx-qay*qby-qaz*qbz,this._onChangeCallback(),this}slerp(qb,t){if(0===t)return this;if(1===t)return this.copy(qb);const x=this._x,y=this._y,z=this._z,w=this._w;let cosHalfTheta=w*qb._w+x*qb._x+y*qb._y+z*qb._z;if(0>cosHalfTheta?(this._w=-qb._w,this._x=-qb._x,this._y=-qb._y,this._z=-qb._z,cosHalfTheta=-cosHalfTheta):this.copy(qb),cosHalfTheta>=1)return this._w=w,this._x=x,this._y=y,this._z=z,this;const sqrSinHalfTheta=1-cosHalfTheta*cosHalfTheta;if(Number.EPSILON>=sqrSinHalfTheta){const s=1-t;return this._w=s*w+t*this._w,this._x=s*x+t*this._x,this._y=s*y+t*this._y,this._z=s*z+t*this._z,this.normalize(),this}const sinHalfTheta=Math.sqrt(sqrSinHalfTheta),halfTheta=Math.atan2(sinHalfTheta,cosHalfTheta),ratioA=Math.sin((1-t)*halfTheta)/sinHalfTheta,ratioB=Math.sin(t*halfTheta)/sinHalfTheta;return this._w=w*ratioA+this._w*ratioB,this._x=x*ratioA+this._x*ratioB,this._y=y*ratioA+this._y*ratioB,this._z=z*ratioA+this._z*ratioB,this._onChangeCallback(),this}slerpQuaternions(qa,qb,t){return this.copy(qa).slerp(qb,t)}random(){const u1=Math.random(),sqrt1u1=Math.sqrt(1-u1),sqrtu1=Math.sqrt(u1),u2=2*Math.PI*Math.random(),u3=2*Math.PI*Math.random();return this.set(sqrt1u1*Math.cos(u2),sqrtu1*Math.sin(u3),sqrtu1*Math.cos(u3),sqrt1u1*Math.sin(u2))}equals(quaternion){return quaternion._x===this._x&&quaternion._y===this._y&&quaternion._z===this._z&&quaternion._w===this._w}fromArray(array,offset){return void 0===offset&&(offset=0),this._x=array[offset],this._y=array[offset+1],this._z=array[offset+2],this._w=array[offset+3],this._onChangeCallback(),this}toArray(array,offset){return void 0===array&&(array=[]),void 0===offset&&(offset=0),array[offset]=this._x,array[offset+1]=this._y,array[offset+2]=this._z,array[offset+3]=this._w,array}fromBufferAttribute(attribute,index){return this._x=attribute.getX(index),this._y=attribute.getY(index),this._z=attribute.getZ(index),this._w=attribute.getW(index),this._onChangeCallback(),this}toJSON(){return this.toArray()}_onChange(callback){return this._onChangeCallback=callback,this}_onChangeCallback(){}*[Symbol.iterator](){yield this._x,yield this._y,yield this._z,yield this._w}}class Vector3{constructor(x,y,z){void 0===x&&(x=0),void 0===y&&(y=0),void 0===z&&(z=0),Vector3.prototype.isVector3=!0,this.x=x,this.y=y,this.z=z}set(x,y,z){return void 0===z&&(z=this.z),this.x=x,this.y=y,this.z=z,this}setScalar(scalar){return this.x=scalar,this.y=scalar,this.z=scalar,this}setX(x){return this.x=x,this}setY(y){return this.y=y,this}setZ(z){return this.z=z,this}setComponent(index,value){switch(index){case 0:this.x=value;break;case 1:this.y=value;break;case 2:this.z=value;break;default:throw Error("index is out of range: "+index)}return this}getComponent(index){switch(index){case 0:return this.x;case 1:return this.y;case 2:return this.z;default:throw Error("index is out of range: "+index)}}clone(){return new this.constructor(this.x,this.y,this.z)}copy(v){return this.x=v.x,this.y=v.y,this.z=v.z,this}add(v){return this.x+=v.x,this.y+=v.y,this.z+=v.z,this}addScalar(s){return this.x+=s,this.y+=s,this.z+=s,this}addVectors(a,b){return this.x=a.x+b.x,this.y=a.y+b.y,this.z=a.z+b.z,this}addScaledVector(v,s){return this.x+=v.x*s,this.y+=v.y*s,this.z+=v.z*s,this}sub(v){return this.x-=v.x,this.y-=v.y,this.z-=v.z,this}subScalar(s){return this.x-=s,this.y-=s,this.z-=s,this}subVectors(a,b){return this.x=a.x-b.x,this.y=a.y-b.y,this.z=a.z-b.z,this}multiply(v){return this.x*=v.x,this.y*=v.y,this.z*=v.z,this}multiplyScalar(scalar){return this.x*=scalar,this.y*=scalar,this.z*=scalar,this}multiplyVectors(a,b){return this.x=a.x*b.x,this.y=a.y*b.y,this.z=a.z*b.z,this}applyEuler(euler){return this.applyQuaternion(_quaternion$4.setFromEuler(euler))}applyAxisAngle(axis,angle){return this.applyQuaternion(_quaternion$4.setFromAxisAngle(axis,angle))}applyMatrix3(m){const x=this.x,y=this.y,z=this.z,e=m.elements;return this.x=e[0]*x+e[3]*y+e[6]*z,this.y=e[1]*x+e[4]*y+e[7]*z,this.z=e[2]*x+e[5]*y+e[8]*z,this}applyNormalMatrix(m){return this.applyMatrix3(m).normalize()}applyMatrix4(m){const x=this.x,y=this.y,z=this.z,e=m.elements,w=1/(e[3]*x+e[7]*y+e[11]*z+e[15]);return this.x=(e[0]*x+e[4]*y+e[8]*z+e[12])*w,this.y=(e[1]*x+e[5]*y+e[9]*z+e[13])*w,this.z=(e[2]*x+e[6]*y+e[10]*z+e[14])*w,this}applyQuaternion(q){const vx=this.x,vy=this.y,vz=this.z,qx=q.x,qy=q.y,qz=q.z,qw=q.w,tx=2*(qy*vz-qz*vy),ty=2*(qz*vx-qx*vz),tz=2*(qx*vy-qy*vx);return this.x=vx+qw*tx+qy*tz-qz*ty,this.y=vy+qw*ty+qz*tx-qx*tz,this.z=vz+qw*tz+qx*ty-qy*tx,this}project(camera){return this.applyMatrix4(camera.matrixWorldInverse).applyMatrix4(camera.projectionMatrix)}unproject(camera){return this.applyMatrix4(camera.projectionMatrixInverse).applyMatrix4(camera.matrixWorld)}transformDirection(m){const x=this.x,y=this.y,z=this.z,e=m.elements;return this.x=e[0]*x+e[4]*y+e[8]*z,this.y=e[1]*x+e[5]*y+e[9]*z,this.z=e[2]*x+e[6]*y+e[10]*z,this.normalize()}divide(v){return this.x/=v.x,this.y/=v.y,this.z/=v.z,this}divideScalar(scalar){return this.multiplyScalar(1/scalar)}min(v){return this.x=Math.min(this.x,v.x),this.y=Math.min(this.y,v.y),this.z=Math.min(this.z,v.z),this}max(v){return this.x=Math.max(this.x,v.x),this.y=Math.max(this.y,v.y),this.z=Math.max(this.z,v.z),this}clamp(min,max){return this.x=Math.max(min.x,Math.min(max.x,this.x)),this.y=Math.max(min.y,Math.min(max.y,this.y)),this.z=Math.max(min.z,Math.min(max.z,this.z)),this}clampScalar(minVal,maxVal){return this.x=Math.max(minVal,Math.min(maxVal,this.x)),this.y=Math.max(minVal,Math.min(maxVal,this.y)),this.z=Math.max(minVal,Math.min(maxVal,this.z)),this}clampLength(min,max){const length=this.length();return this.divideScalar(length||1).multiplyScalar(Math.max(min,Math.min(max,length)))}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(v){return this.x*v.x+this.y*v.y+this.z*v.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(length){return this.normalize().multiplyScalar(length)}lerp(v,alpha){return this.x+=(v.x-this.x)*alpha,this.y+=(v.y-this.y)*alpha,this.z+=(v.z-this.z)*alpha,this}lerpVectors(v1,v2,alpha){return this.x=v1.x+(v2.x-v1.x)*alpha,this.y=v1.y+(v2.y-v1.y)*alpha,this.z=v1.z+(v2.z-v1.z)*alpha,this}cross(v){return this.crossVectors(this,v)}crossVectors(a,b){const ax=a.x,ay=a.y,az=a.z,bx=b.x,by=b.y,bz=b.z;return this.x=ay*bz-az*by,this.y=az*bx-ax*bz,this.z=ax*by-ay*bx,this}projectOnVector(v){const denominator=v.lengthSq();if(0===denominator)return this.set(0,0,0);const scalar=v.dot(this)/denominator;return this.copy(v).multiplyScalar(scalar)}projectOnPlane(planeNormal){return _vector$c.copy(this).projectOnVector(planeNormal),this.sub(_vector$c)}reflect(normal){return this.sub(_vector$c.copy(normal).multiplyScalar(2*this.dot(normal)))}angleTo(v){const denominator=Math.sqrt(this.lengthSq()*v.lengthSq());if(0===denominator)return Math.PI/2;const theta=this.dot(v)/denominator;return Math.acos(clamp$1(theta,-1,1))}distanceTo(v){return Math.sqrt(this.distanceToSquared(v))}distanceToSquared(v){const dx=this.x-v.x,dy=this.y-v.y,dz=this.z-v.z;return dx*dx+dy*dy+dz*dz}manhattanDistanceTo(v){return Math.abs(this.x-v.x)+Math.abs(this.y-v.y)+Math.abs(this.z-v.z)}setFromSpherical(s){return this.setFromSphericalCoords(s.radius,s.phi,s.theta)}setFromSphericalCoords(radius,phi,theta){const sinPhiRadius=Math.sin(phi)*radius;return this.x=sinPhiRadius*Math.sin(theta),this.y=Math.cos(phi)*radius,this.z=sinPhiRadius*Math.cos(theta),this}setFromCylindrical(c){return this.setFromCylindricalCoords(c.radius,c.theta,c.y)}setFromCylindricalCoords(radius,theta,y){return this.x=radius*Math.sin(theta),this.y=y,this.z=radius*Math.cos(theta),this}setFromMatrixPosition(m){const e=m.elements;return this.x=e[12],this.y=e[13],this.z=e[14],this}setFromMatrixScale(m){const sx=this.setFromMatrixColumn(m,0).length(),sy=this.setFromMatrixColumn(m,1).length(),sz=this.setFromMatrixColumn(m,2).length();return this.x=sx,this.y=sy,this.z=sz,this}setFromMatrixColumn(m,index){return this.fromArray(m.elements,4*index)}setFromMatrix3Column(m,index){return this.fromArray(m.elements,3*index)}setFromEuler(e){return this.x=e._x,this.y=e._y,this.z=e._z,this}setFromColor(c){return this.x=c.r,this.y=c.g,this.z=c.b,this}equals(v){return v.x===this.x&&v.y===this.y&&v.z===this.z}fromArray(array,offset){return void 0===offset&&(offset=0),this.x=array[offset],this.y=array[offset+1],this.z=array[offset+2],this}toArray(array,offset){return void 0===array&&(array=[]),void 0===offset&&(offset=0),array[offset]=this.x,array[offset+1]=this.y,array[offset+2]=this.z,array}fromBufferAttribute(attribute,index){return this.x=attribute.getX(index),this.y=attribute.getY(index),this.z=attribute.getZ(index),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this}randomDirection(){const u=2*(Math.random()-.5),t=Math.random()*Math.PI*2,f=Math.sqrt(1-u**2);return this.x=f*Math.cos(t),this.y=f*Math.sin(t),this.z=u,this}*[Symbol.iterator](){yield this.x,yield this.y,yield this.z}}const _vector$c=new Vector3,_quaternion$4=new Quaternion;class Box3{constructor(min,max){void 0===min&&(min=new Vector3(1/0,1/0,1/0)),void 0===max&&(max=new Vector3(-1/0,-1/0,-1/0)),this.isBox3=!0,this.min=min,this.max=max}set(min,max){return this.min.copy(min),this.max.copy(max),this}setFromArray(array){this.makeEmpty();for(let i=0,il=array.length;il>i;i+=3)this.expandByPoint(_vector$b.fromArray(array,i));return this}setFromBufferAttribute(attribute){this.makeEmpty();for(let i=0,il=attribute.count;il>i;i++)this.expandByPoint(_vector$b.fromBufferAttribute(attribute,i));return this}setFromPoints(points){this.makeEmpty();for(let i=0,il=points.length;il>i;i++)this.expandByPoint(points[i]);return this}setFromCenterAndSize(center,size){const halfSize=_vector$b.copy(size).multiplyScalar(.5);return this.min.copy(center).sub(halfSize),this.max.copy(center).add(halfSize),this}setFromObject(object,precise){return void 0===precise&&(precise=!1),this.makeEmpty(),this.expandByObject(object,precise)}clone(){return(new this.constructor).copy(this)}copy(box){return this.min.copy(box.min),this.max.copy(box.m