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@gltf-transform/core

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@gltf-transform/core - npm Package Compare versions

Comparing version 0.3.3 to 0.4.0-alpha.0

dist/extension.d.ts

dist/io/reader-context.d.ts

dist/io/writer-context.d.ts

dist/properties/extensible-property.d.ts

dist/properties/extension-property.d.ts

src/extension.ts

src/io/reader-context.ts

src/io/writer-context.ts

src/properties/extensible-property.ts

src/properties/extension-property.ts

dist/constants.d.ts

		@@ -53,5 +53,1 @@ /**
		export declare type TypedArray = Float32Array \| Uint32Array \| Uint16Array \| Uint8Array \| Int16Array \| Int8Array;
		/** @hidden */
		export declare class NotImplementedError extends Error {
		constructor();
		}

dist/core.d.ts

		export { Document, Transform } from './document';
		export { Accessor, Animation, AnimationChannel, AnimationSampler, Buffer, Camera, Property, Material, Mesh, Node, Primitive, PrimitiveTarget, Root, Scene, Skin, Texture, TextureInfo, TextureSampler } from './properties';
		export { Extension } from './extension';
		export { Accessor, Animation, AnimationChannel, AnimationSampler, Buffer, Camera, ExtensionProperty, Property, Material, Mesh, Node, Primitive, PrimitiveTarget, Root, Scene, Skin, Texture, TextureInfo, TextureSampler } from './properties';
		export { Graph } from './graph/';
		export { NodeIO, WebIO } from './io/';
		export { NodeIO, WebIO, ReaderContext, WriterContext } from './io/';
		export { BufferUtils, FileUtils, ImageUtils, Logger, uuid } from './utils/';

dist/core.modern.js

		@@ -1,2 +0,2 @@
		import{getTranslation as t,getRotation as e,getScaling as s}from"gl-matrix/mat4";function r(t,e,s,r){var i,n=arguments.length,h=n<3?e:null===r?r=Object.getOwnPropertyDescriptor(e,s):r;if("object"==typeof Reflect&&"function"==typeof Reflect.decorate)h=Reflect.decorate(t,e,s,r);else for(var o=t.length-1;o>=0;o--)(i=t[o])&&(h=(n<3?i(h):n>3?i(e,s,h):i(e,s))\|\|h);return n>3&&h&&Object.defineProperty(e,s,h),h}class i{constructor(t,e,s){if(this.t=t,this.s=e,this.i=s,this.h=!1,this.o=[],!e.canLink(s))throw new Error("Cannot link disconnected graphs/documents.")}getName(){return this.t}getParent(){return this.s}getChild(){return this.i}setChild(t){return this.i=t,this}dispose(){this.h\|\|(this.h=!0,this.o.forEach(t=>t()),this.o.length=0)}onDispose(t){return this.o.push(t),this}isDisposed(){return this.h}}class n{constructor(){this.u=[]}getLinks(){return this.u}listParents(t){return this.u.filter(e=>e.getChild()===t).map(t=>t.getParent())}listChildren(t){return this.u.filter(e=>e.getParent()===t).map(t=>t.getChild())}disconnectChildren(t){return this.u.filter(e=>e.getParent()===t).forEach(t=>t.dispose()),this}disconnectParents(t,e){let s=this.u.filter(e=>e.getChild()===t);return e&&(s=s.filter(t=>e(t.getParent()))),s.forEach(t=>t.dispose()),this}link(t,e,s){if(!s)return null;const r=new i(t,e,s);return this.registerLink(r),r}registerLink(t){return this.u.push(t),t.onDispose(()=>this.unlink(t)),t}unlink(t){return this.u=this.u.filter(e=>e!==t),this}}function h(t,e){Object.defineProperty(t,e,{get:function(){return this["__"+e]},set:function(t){const s=this["__"+e];s&&!Array.isArray(s)&&s.dispose(),t&&!Array.isArray(t)&&t.onDispose(()=>{this["__"+e]=null}),this["__"+e]=t},enumerable:!0})}function o(t,e){}class u extends Error{constructor(){super("@gltf-transform/core: Not implemented.")}}class c extends class{constructor(t){this.h=!1,this.l=t}canLink(t){return this.l===t.l}isDisposed(){return this.h}dispose(){this.l.disconnectChildren(this),this.l.disconnectParents(this),this.h=!0}detach(){return this.l.disconnectParents(this),this}swap(t,e){return this.l.getLinks().filter(e=>e.getParent()===this&&e.getChild()===t).forEach(t=>t.setChild(e)),this}addGraphChild(t,e){return t.push(e),e.onDispose(()=>{const s=t.filter(t=>t!==e);t.length=0,t.push(...s)}),this}removeGraphChild(t,e){return t.filter(t=>t.getChild()===e).forEach(t=>t.dispose()),this}listGraphParents(){return this.l.listParents(this)}}{constructor(t,e=""){super(t),this.t="",this.g={},this.p={},this.t=e}getName(){return this.t}setName(t){return this.t=t,this}getExtras(){return this.g}setExtras(t){return this.g=t,this}getExtensions(){return this.p}setExtensions(t){return this.p=t,this}clone(){throw new u}detach(){return this.l.disconnectParents(this,t=>"Root"!==t.propertyType),this}listParents(){return this.listGraphParents()}}class a extends c{constructor(){super(...arguments),this.propertyType="Accessor",this.m=null,this.v="SCALAR",this.A=null,this.T=!1,this.M=l,this.S=l,this.buffer=null}static getElementSize(t){switch(t){case"SCALAR":return 1;case"VEC2":return 2;case"VEC3":return 3;case"VEC4":case"MAT2":return 4;case"MAT3":return 9;case"MAT4":return 16;default:throw new Error("Unexpected type: "+t)}}static getComponentSize(t){switch(t){case 5120:case 5121:return 1;case 5122:case 5123:return 2;case 5125:case 5126:return 4;default:throw new Error("Unexpected component type: "+t)}}getMinNormalized(t){const e=this.getElementSize();this.getMin(t);for(let s=0;s<e;s++)t[s]=this.S(t[s]);return t}getMin(t){const e=this.getCount(),s=this.getElementSize();for(let e=0;e<s;e++)t[e]=Infinity;for(let r=0;r<es;r+=s)for(let e=0;e<s;e++){const s=this.m[r+e];Number.isFinite(s)&&(t[e]=Math.min(t[e],s))}return t}getMaxNormalized(t){const e=this.getElementSize();this.getMax(t);for(let s=0;s<e;s++)t[s]=this.S(t[s]);return t}getMax(t){const e=this.getCount(),s=this.getElementSize();for(let e=0;e<s;e++)t[e]=-Infinity;for(let r=0;r<es;r+=s)for(let e=0;e<s;e++){const s=this.m[r+e];Number.isFinite(s)&&(t[e]=Math.max(t[e],s))}return t}getCount(){return this.m.length/this.getElementSize()}getType(){return this.v}setType(t){return this.v=t,this}getElementSize(){return a.getElementSize(this.v)}getComponentSize(){return this.m.BYTES_PER_ELEMENT}getComponentType(){return this.A}getNormalized(){return this.T}setNormalized(t){return this.T=t,t?(this.S=t=>function(t,e){switch(e){case 5126:return t;case 5123:return t/65535;case 5121:return t/255;case 5122:return Math.max(t/32767,-1);case 5120:return Math.max(t/127,-1)}}(t,this.A),this.M=t=>function(t,e){switch(e){case 5126:return t;case 5123:return Math.round(65535t);case 5121:return Math.round(255t);case 5122:return Math.round(32767t);case 5120:return Math.round(127t)}}(t,this.A)):(this.S=l,this.M=l),this}getScalar(t){const e=this.getElementSize();return this.S(this.m[te])}setScalar(t,e){return this.m[tthis.getElementSize()]=this.M(e),this}getElement(t,e){const s=this.getElementSize();for(let r=0;r<s;r++)e[r]=this.S(this.m[ts+r]);return e}setElement(t,e){const s=this.getElementSize();for(let r=0;r<s;r++)this.m[ts+r]=this.M(e[r]);return this}getBuffer(){return this.buffer.getChild()}setBuffer(t){return this.buffer=this.l.link("buffer",this,t),this}getArray(){return this.m}setArray(t){return this.A=function(t){switch(t.constructor){case Float32Array:return 5126;case Uint32Array:return 5125;case Uint16Array:return 5123;case Uint8Array:return 5121;case Int16Array:return 5122;case Int8Array:return 5120;default:throw new Error("Unknown accessor componentType.")}}(t),this.m=t,this}getByteLength(){return this.m.byteLength}}function l(t){return t}a.Type={SCALAR:"SCALAR",VEC2:"VEC2",VEC3:"VEC3",VEC4:"VEC4",MAT3:"MAT3",MAT4:"MAT4"},a.ComponentType={BYTE:5120,UNSIGNED_BYTE:5121,SHORT:5122,UNSIGNED_SHORT:5123,UNSIGNED_INT:5125,FLOAT:5126},r([h],a.prototype,"buffer",void 0);class f extends c{constructor(){super(...arguments),this.propertyType="Animation",this.channels=[],this.samplers=[]}addChannel(t){const e=this.l.link("channel",this,t);return this.addGraphChild(this.channels,e)}removeChannel(t){return this.removeGraphChild(this.channels,t)}listChannels(){return this.channels.map(t=>t.getChild())}addSampler(t){const e=this.l.link("sampler",this,t);return this.addGraphChild(this.samplers,e)}removeSampler(t){return this.removeGraphChild(this.samplers,t)}listSamplers(){return this.samplers.map(t=>t.getChild())}}r([o],f.prototype,"channels",void 0),r([o],f.prototype,"samplers",void 0);class d extends c{constructor(){super(...arguments),this.propertyType="AnimationChannel",this.N=null,this.targetNode=null,this.sampler=null}getTargetPath(){return this.N}setTargetPath(t){return this.N=t,this}getTargetNode(){return this.targetNode?this.targetNode.getChild():null}setTargetNode(t){return this.targetNode=this.l.link("target.node",this,t),this}getSampler(){return this.sampler?this.sampler.getChild():null}setSampler(t){return this.sampler=this.l.link("sampler",this,t),this}}r([h],d.prototype,"targetNode",void 0),r([h],d.prototype,"sampler",void 0);class g extends c{constructor(){super(...arguments),this.propertyType="AnimationChannel",this.C="LINEAR",this.input=null,this.output=null}getInterpolation(){return this.C}setInterpolation(t){return this.C=t,this}getInput(){return this.input?this.input.getChild():null}setInput(t){return this.input=this.l.link("input",this,t),this}getOutput(){return this.output?this.output.getChild():null}setOutput(t){return this.output=this.l.link("output",this,t),this}}r([h],g.prototype,"input",void 0),r([h],g.prototype,"output",void 0);class p extends c{constructor(){super(...arguments),this.propertyType="Buffer"}getURI(){return this.R}setURI(t){return this.R=t,this}}class m extends c{constructor(){super(...arguments),this.propertyType="Camera",this.v="perspective"}getType(){return this.v}setType(t){return this.v=t,this}getZNear(){return this.I}setZNear(t){return this.I=t,this}getZFar(){return this.B}setZFar(t){return this.B=t,this}getAspectRatio(){return this.k}setAspectRatio(t){return this.k=t,this}getYFov(){return this.U}setYFov(t){return this.U=t,this}getXMag(){return this.L}setXMag(t){return this.L=t,this}getYMag(){return this.O}setYMag(t){return this.O=t,this}}class v{static createBufferFromDataURI(t){if("undefined"==typeof Buffer){const e=atob(t.split(",")[1]),s=new Uint8Array(e.length);for(let t=0;t<e.length;t++)s[t]=e.charCodeAt(t);return s.buffer}{const e=t.split(",")[1],s=t.indexOf("base64")>=0;return this.trim(Buffer.from(e,s?"base64":"utf8"))}}static encodeText(t){return"undefined"!=typeof TextEncoder?(new TextEncoder).encode(t).buffer:this.trim(Buffer.from(t))}static decodeText(t){return"undefined"!=typeof TextDecoder?(new TextDecoder).decode(t):Buffer.from(t).toString("utf8")}static trim(t){const{byteOffset:e,byteLength:s}=t;return t.buffer.slice(e,e+s)}static concat(t){let e=0;for(const s of t)e+=s.byteLength;const s=new Uint8Array(e);let r=0;for(const e of t)s.set(new Uint8Array(e),r),r+=e.byteLength;return s.buffer}static pad(t,e=0){const s=this.padNumber(t.byteLength);if(s!==t.byteLength){const r=new Uint8Array(s);if(r.set(new Uint8Array(t)),0!==e)for(let i=t.byteLength;i<s;i++)r[i]=e;return r.buffer}return t}static padNumber(t){return 4Math.ceil(t/4)}static equals(t,e){if(t===e)return!0;if(t.byteLength!==e.byteLength)return!1;const s=new DataView(t),r=new DataView(e);let i=t.byteLength;for(;i--;)if(s.getUint8(i)!==r.getUint8(i))return!1;return!0}}class w{static basename(t){return t.split(/[\\/]/).pop().split(/[.]/).shift()}static extension(t){return 0!==t.indexOf("data:")?t.split(/[\\/]/).pop().split(/[.]/).pop():0===t.indexOf("data:image/png")?"png":0===t.indexOf("data:image/jpeg")?"jpeg":"bin"}}class A{static getSizeJPEG(t){let e,s;for(t=t.slice(4);t.length;){if(e=t.readUInt16BE(0),T(t,e),s=t[e+1],192===s\|\|193===s\|\|194===s)return[t.readUInt16BE(e+7),t.readUInt16BE(e+5)];t=t.slice(e+2)}throw new TypeError("Invalid JPG, no size found")}static getSizePNG(t){return"CgBI"===t.toString("ascii",12,16)?[t.readUInt32BE(32),t.readUInt32BE(36)]:[t.readUInt32BE(16),t.readUInt32BE(20)]}}function T(t,e){if(e>t.length)throw new TypeError("Corrupt JPG, exceeded buffer limits");if(255!==t[e])throw new TypeError("Invalid JPG, marker table corrupted")}class x{constructor(t){this.verbosity=t}debug(t){this.verbosity<=x.Verbosity.DEBUG&&console.debug(t)}info(t){this.verbosity<=x.Verbosity.INFO&&console.info(t)}warn(t){this.verbosity<=x.Verbosity.WARN&&console.warn(t)}error(t){this.verbosity<=x.Verbosity.ERROR&&console.error(t)}}x.Verbosity={SILENT:4,ERROR:3,WARN:2,INFO:1,DEBUG:0};const b="23456789abdegjkmnpqrvwxyzABDEGJKMNPQRVWXYZ",M=new Set,y=function(){let t="";for(let e=0;e<6;e++)t+=b.charAt(Math.floor(Math.random()b.length));return t},E=function(){for(let t=0;t<999;t++){const t=y();if(!M.has(t))return t}return""};class S extends c{constructor(){super(...arguments),this.propertyType="Texture",this.image=null,this.mimeType="",this.uri=""}getMimeType(){return this.mimeType}setMimeType(t){return this.mimeType=t,this}getURI(){return this.uri}setURI(t){return this.uri=t,this}getImage(){return this.image}setImage(t){return this.image=t,this}getSize(){let t;return t=this.mimeType?"image/png"===this.mimeType:this.uri.match(/\.png$/),t?A.getSizePNG(Buffer.from(this.image)):A.getSizeJPEG(Buffer.from(this.image))}}class N{constructor(){this.propertyType="TextureInfo",this.texCoord=0}getTexCoord(){return this.texCoord}setTexCoord(t){return this.texCoord=t,this}}class C{constructor(){this.propertyType="TextureSampler",this.P=null,this._=null,this.F=10497,this.G=10497}getMagFilter(){return this.P}setMagFilter(t){return this.P=t,this}getMinFilter(){return this._}setMinFilter(t){return this._=t,this}getWrapS(){return this.F}setWrapS(t){return this.F=t,this}getWrapT(){return this.G}setWrapT(t){return this.G=t,this}}C.TextureWrapMode={CLAMP_TO_EDGE:33071,MIRRORED_REPEAT:33648,REPEAT:10497},C.TextureMagFilter={NEAREST:9728,LINEAR:9729},C.TextureMinFilter={NEAREST:9728,LINEAR:9729,NEAREST_MIPMAP_NEAREST:9984,LINEAR_MIPMAP_NEAREST:9985,NEAREST_MIPMAP_LINEAR:9986,LINEAR_MIPMAP_LINEAR:9987};class R extends i{constructor(){super(...arguments),this.textureInfo=new N,this.sampler=new C}}class I extends i{constructor(){super(...arguments),this.semantic=""}}class B extends i{}class k extends n{linkTexture(t,e,s){if(!s)return null;const r=new R(t,e,s);return this.registerLink(r),r}linkAttribute(t,e,s){if(!s)return null;const r=new I(t,e,s);return this.registerLink(r),r}linkIndex(t,e,s){if(!s)return null;const r=new B(t,e,s);return this.registerLink(r),r}}class U extends c{constructor(){super(...arguments),this.propertyType="Material",this.j="OPAQUE",this.D=.5,this.$=!1,this.J=[1,1,1,1],this.V=[0,0,0],this.W=1,this.Y=1,this.Z=1,this.X=1,this.baseColorTexture=null,this.emissiveTexture=null,this.normalTexture=null,this.occlusionTexture=null,this.metallicRoughnessTexture=null}getDoubleSided(){return this.$}setDoubleSided(t){return this.$=t,this}getAlphaMode(){return this.j}setAlphaMode(t){return this.j=t,this}getAlphaCutoff(){return this.D}setAlphaCutoff(t){return this.D=t,this}getBaseColorFactor(){return this.J}setBaseColorFactor(t){return this.J=t,this}getBaseColorTexture(){return this.baseColorTexture?this.baseColorTexture.getChild():null}getBaseColorTextureInfo(){return this.baseColorTexture?this.baseColorTexture.textureInfo:null}getBaseColorTextureSampler(){return this.baseColorTexture?this.baseColorTexture.sampler:null}setBaseColorTexture(t){return this.baseColorTexture=this.l.linkTexture("baseColorTexture",this,t),this}getEmissiveFactor(){return this.V}setEmissiveFactor(t){return this.V=t,this}getEmissiveTexture(){return this.emissiveTexture?this.emissiveTexture.getChild():null}getEmissiveTextureInfo(){return this.emissiveTexture?this.emissiveTexture.textureInfo:null}getEmissiveTextureSampler(){return this.emissiveTexture?this.emissiveTexture.sampler:null}setEmissiveTexture(t){return this.emissiveTexture=this.l.linkTexture("emissiveTexture",this,t),this}getNormalScale(){return this.W}setNormalScale(t){return this.W=t,this}getNormalTexture(){return this.normalTexture?this.normalTexture.getChild():null}getNormalTextureInfo(){return this.normalTexture?this.normalTexture.textureInfo:null}getNormalTextureSampler(){return this.normalTexture?this.normalTexture.sampler:null}setNormalTexture(t){return this.normalTexture=this.l.linkTexture("normalTexture",this,t),this}getOcclusionStrength(){return this.Y}setOcclusionStrength(t){return this.Y=t,this}getOcclusionTexture(){return this.occlusionTexture?this.occlusionTexture.getChild():null}getOcclusionTextureInfo(){return this.occlusionTexture?this.occlusionTexture.textureInfo:null}getOcclusionTextureSampler(){return this.occlusionTexture?this.occlusionTexture.sampler:null}setOcclusionTexture(t){return this.occlusionTexture=this.l.linkTexture("occlusionTexture",this,t),this}getRoughnessFactor(){return this.Z}setRoughnessFactor(t){return this.Z=t,this}getMetallicFactor(){return this.X}setMetallicFactor(t){return this.X=t,this}getMetallicRoughnessTexture(){return this.metallicRoughnessTexture?this.metallicRoughnessTexture.getChild():null}getMetallicRoughnessTextureInfo(){return this.metallicRoughnessTexture?this.metallicRoughnessTexture.textureInfo:null}getMetallicRoughnessTextureSampler(){return this.metallicRoughnessTexture?this.metallicRoughnessTexture.sampler:null}setMetallicRoughnessTexture(t){return this.metallicRoughnessTexture=this.l.linkTexture("metallicRoughnessTexture",this,t),this}}r([h],U.prototype,"baseColorTexture",void 0),r([h],U.prototype,"emissiveTexture",void 0),r([h],U.prototype,"normalTexture",void 0),r([h],U.prototype,"occlusionTexture",void 0),r([h],U.prototype,"metallicRoughnessTexture",void 0);class L extends c{constructor(){super(...arguments),this.propertyType="Mesh",this.q=[],this.primitives=[]}addPrimitive(t){return this.addGraphChild(this.primitives,this.l.link("primitive",this,t))}removePrimitive(t){return this.removeGraphChild(this.primitives,t)}listPrimitives(){return this.primitives.map(t=>t.getChild())}getWeights(){return this.q}setWeights(t){return this.q=t,this}}r([o],L.prototype,"primitives",void 0);class O extends c{constructor(){super(...arguments),this.propertyType="Primitive",this.H=4,this.indices=null,this.attributes=[],this.targets=[],this.material=null}getIndices(){return this.indices?this.indices.getChild():null}setIndices(t){return this.indices=this.l.linkIndex("index",this,t),this}getAttribute(t){const e=this.attributes.find(e=>e.semantic===t);return e?e.getChild():null}setAttribute(t,e){const s=this.getAttribute(t);if(s&&this.removeGraphChild(this.attributes,s),!e)return this;const r=this.l.linkAttribute(t.toLowerCase(),this,e);return r.semantic=t,this.addGraphChild(this.attributes,r)}listAttributes(){return this.attributes.map(t=>t.getChild())}listSemantics(){return this.attributes.map(t=>t.semantic)}getMaterial(){return this.material?this.material.getChild():null}setMaterial(t){return this.material=this.l.link("material",this,t),this}getMode(){return this.H}setMode(t){return this.H=t,this}listTargets(){return this.targets.map(t=>t.getChild())}addTarget(t){return this.addGraphChild(this.targets,this.l.link("target",this,t)),this}removeTarget(t){return this.removeGraphChild(this.targets,t)}}r([h],O.prototype,"indices",void 0),r([o],O.prototype,"attributes",void 0),r([o],O.prototype,"targets",void 0),r([h],O.prototype,"material",void 0);class P extends c{constructor(){super(...arguments),this.propertyType="PrimitiveTarget",this.attributes=[]}getAttribute(t){const e=this.attributes.find(e=>e.semantic===t);return e?e.getChild():null}setAttribute(t,e){const s=this.getAttribute(t);if(s&&this.removeGraphChild(this.attributes,s),!e)return this;const r=this.l.linkAttribute(t.toLowerCase(),this,e);return r.semantic=t,this.addGraphChild(this.attributes,r)}listAttributes(){return this.attributes.map(t=>t.getChild())}listSemantics(){return this.attributes.map(t=>t.semantic)}}r([o],P.prototype,"attributes",void 0);class _ extends c{constructor(){super(...arguments),this.propertyType="Node",this.K=[0,0,0],this.tt=[0,0,0,1],this.et=[1,1,1],this.q=[],this.camera=null,this.mesh=null,this.skin=null,this.children=[]}getTranslation(){return this.K}getRotation(){return this.tt}getScale(){return this.et}setTranslation(t){return this.K=t,this}setRotation(t){return this.tt=t,this}setScale(t){return this.et=t,this}addChild(t){const e=this.l.link("child",this,t);return this.addGraphChild(this.children,e)}removeChild(t){return this.removeGraphChild(this.children,t)}listChildren(){return this.children.map(t=>t.getChild())}getMesh(){return this.mesh?this.mesh.getChild():null}setMesh(t){return this.mesh=this.l.link("mesh",this,t),this}getCamera(){return this.camera?this.camera.getChild():null}setCamera(t){return this.camera=this.l.link("camera",this,t),this}getSkin(){return this.skin?this.skin.getChild():null}setSkin(t){return this.skin=this.l.link("skin",this,t),this}getWeights(){return this.q}setWeights(t){return this.q=t,this}}r([h],_.prototype,"camera",void 0),r([h],_.prototype,"mesh",void 0),r([h],_.prototype,"skin",void 0),r([o],_.prototype,"children",void 0);class F extends c{constructor(){super(...arguments),this.propertyType="Root",this.st={generator:"glTF-Transform v0.3.3",version:"2.0"},this.scenes=[],this.nodes=[],this.cameras=[],this.skins=[],this.meshes=[],this.materials=[],this.textures=[],this.animations=[],this.accessors=[],this.buffers=[]}getAsset(){return this.st}addScene(t){return this.addGraphChild(this.scenes,this.l.link("scene",this,t))}removeScene(t){return this.removeGraphChild(this.scenes,t)}listScenes(){return this.scenes.map(t=>t.getChild())}addNode(t){return this.addGraphChild(this.nodes,this.l.link("node",this,t))}removeNode(t){return this.removeGraphChild(this.nodes,t)}listNodes(){return this.nodes.map(t=>t.getChild())}addCamera(t){return this.addGraphChild(this.cameras,this.l.link("camera",this,t))}removeCamera(t){return this.removeGraphChild(this.cameras,t)}listCameras(){return this.cameras.map(t=>t.getChild())}addSkin(t){return this.addGraphChild(this.skins,this.l.link("skin",this,t))}removeSkin(t){return this.removeGraphChild(this.skins,t)}listSkins(){return this.skins.map(t=>t.getChild())}addMesh(t){return this.addGraphChild(this.meshes,this.l.link("mesh",this,t))}removeMesh(t){return this.removeGraphChild(this.meshes,t)}listMeshes(){return this.meshes.map(t=>t.getChild())}addMaterial(t){return this.addGraphChild(this.materials,this.l.link("material",this,t))}removeMaterial(t){return this.removeGraphChild(this.materials,t)}listMaterials(){return this.materials.map(t=>t.getChild())}addTexture(t){return this.addGraphChild(this.textures,this.l.link("texture",this,t))}removeTexture(t){return this.removeGraphChild(this.textures,t)}listTextures(){return this.textures.map(t=>t.getChild())}addAnimation(t){return this.addGraphChild(this.animations,this.l.link("animation",this,t))}removeAnimation(t){return this.removeGraphChild(this.animations,t)}listAnimations(){return this.animations.map(t=>t.getChild())}addAccessor(t){return this.addGraphChild(this.accessors,this.l.link("accessor",this,t))}removeAccessor(t){return this.removeGraphChild(this.accessors,t)}listAccessors(){return this.accessors.map(t=>t.getChild())}addBuffer(t){return this.addGraphChild(this.buffers,this.l.link("buffer",this,t))}removeBuffer(t){return this.removeGraphChild(this.buffers,t)}listBuffers(){return this.buffers.map(t=>t.getChild())}}r([o],F.prototype,"scenes",void 0),r([o],F.prototype,"nodes",void 0),r([o],F.prototype,"cameras",void 0),r([o],F.prototype,"skins",void 0),r([o],F.prototype,"meshes",void 0),r([o],F.prototype,"materials",void 0),r([o],F.prototype,"textures",void 0),r([o],F.prototype,"animations",void 0),r([o],F.prototype,"accessors",void 0),r([o],F.prototype,"buffers",void 0);class G extends c{constructor(){super(...arguments),this.propertyType="Scene",this.nodes=[]}addNode(t){return this.addGraphChild(this.nodes,this.l.link("node",this,t))}removeNode(t){return this.removeGraphChild(this.nodes,t)}listNodes(){return this.nodes.map(t=>t.getChild())}}r([o],G.prototype,"nodes",void 0);class j extends c{constructor(){super(...arguments),this.propertyType="Skin",this.skeleton=null,this.inverseBindMatrices=null,this.joints=[]}getSkeleton(){return this.skeleton?this.skeleton.getChild():null}setSkeleton(t){return this.skeleton=this.l.link("skeleton",this,t),this}getInverseBindMatrices(){return this.inverseBindMatrices?this.inverseBindMatrices.getChild():null}setInverseBindMatrices(t){return this.inverseBindMatrices=this.l.link("inverseBindMatrices",this,t),this}addJoint(t){const e=this.l.link("joint",this,t);return this.addGraphChild(this.joints,e)}removeJoint(t){return this.removeGraphChild(this.joints,t)}listJoints(){return this.joints.map(t=>t.getChild())}}r([h],j.prototype,"skeleton",void 0),r([h],j.prototype,"inverseBindMatrices",void 0),r([o],j.prototype,"joints",void 0);class D{constructor(){this.graph=new k,this.root=new F(this.graph),this.logger=new x(x.Verbosity.INFO)}getRoot(){return this.root}getGraph(){return this.graph}getLogger(){return this.logger}setLogger(t){return this.logger=t,this}clone(){throw new Error("Not implemented.")}transform(...t){for(const e of t)e(this);return this}createScene(t){const e=new G(this.graph,t);return this.root.addScene(e),e}createNode(t){const e=new _(this.graph,t);return this.root.addNode(e),e}createCamera(t){const e=new m(this.graph,t);return this.root.addCamera(e),e}createSkin(t){const e=new j(this.graph,t);return this.root.addSkin(e),e}createMesh(t){const e=new L(this.graph,t);return this.root.addMesh(e),e}createPrimitive(){return new O(this.graph)}createPrimitiveTarget(t){return new P(this.graph,t)}createMaterial(t){const e=new U(this.graph,t);return this.root.addMaterial(e),e}createTexture(t){const e=new S(this.graph,t);return this.root.addTexture(e),e}createAnimation(t){const e=new f(this.graph,t);return this.root.addAnimation(e),e}createAnimationChannel(){return new d(this.graph)}createAnimationSampler(){return new g(this.graph)}createAccessor(t,e=null){e\|\|(e=this.getRoot().listBuffers()[0]);const s=new a(this.graph,t).setBuffer(e);return this.root.addAccessor(s),s}createBuffer(t){const e=new p(this.graph,t);return this.root.addBuffer(e),e}}const z={5120:Int8Array,5121:Uint8Array,5122:Int16Array,5123:Uint16Array,5125:Uint32Array,5126:Float32Array};class ${static read(r){const{json:i}=r,n=new D;if("2.0"!==i.asset.version)throw new Error(`Unsupported glTF version: "${i.asset.version}".`);const h=(i.buffers\|\|[]).map(t=>{const e=n.createBuffer(t.name);return t.uri&&0!==t.uri.indexOf("__")&&e.setURI(t.uri),e}),o=(i.bufferViews\|\|[]).map(t=>h[t.buffer]),u=(i.accessors\|\|[]).map(t=>{const e=n.createAccessor(t.name,o[t.bufferView]);let s;return e.setType(t.type),s=void 0!==t.sparse?function(t,e){const s=z[t.componentType],r=a.getElementSize(t.type);let i;i=void 0!==t.bufferView?W(t,e).slice():new s(t.countr);const n=t.sparse.count,h={...t,...t.sparse.indices,count:n,type:"SCALAR"},o={...t,...t.sparse.values,count:n},u=W(h,e),c=W(o,e);for(let t=0;t<h.count;t++)for(let e=0;e<r;e++)i[u[t]r+e]=c[tr+e];return i}(t,r):W(t,r).slice(),void 0!==t.normalized&&e.setNormalized(t.normalized),e.setArray(s),e}),c=i.textures\|\|[],l=(i.images\|\|[]).map(t=>{const e=n.createTexture(t.name);if(void 0!==t.bufferView){const s=i.bufferViews[t.bufferView],n=r.json.buffers[s.buffer],h=s.byteOffset\|\|0,o=(n.uri?r.resources[n.uri]:r.resources["rt"]).slice(h,h+s.byteLength);e.setImage(o)}else void 0!==t.uri&&(e.setImage(r.resources[t.uri]),0!==t.uri.indexOf("__")&&e.setURI(t.uri));if(void 0!==t.mimeType)e.setMimeType(t.mimeType);else if(t.uri){const s=w.extension(t.uri);e.setMimeType("png"===s?"image/png":"image/jpeg")}return e}),f=(i.materials\|\|[]).map(t=>{const e=n.createMaterial(t.name);void 0!==t.alphaMode&&e.setAlphaMode(t.alphaMode),void 0!==t.alphaCutoff&&e.setAlphaCutoff(t.alphaCutoff),void 0!==t.doubleSided&&e.setDoubleSided(t.doubleSided);const s=t.pbrMetallicRoughness\|\|{};if(void 0!==s.baseColorFactor&&e.setBaseColorFactor(s.baseColorFactor),void 0!==t.emissiveFactor&&e.setEmissiveFactor(t.emissiveFactor),void 0!==s.metallicFactor&&e.setMetallicFactor(s.metallicFactor),void 0!==s.roughnessFactor&&e.setRoughnessFactor(s.roughnessFactor),void 0!==s.baseColorTexture){const t=s.baseColorTexture;e.setBaseColorTexture(l[c[t.index].source]),J(e.getBaseColorTextureInfo(),t),V(e.getBaseColorTextureSampler(),t,r)}if(void 0!==t.emissiveTexture){const s=t.emissiveTexture;e.setEmissiveTexture(l[c[s.index].source]),J(e.getEmissiveTextureInfo(),s),V(e.getEmissiveTextureSampler(),s,r)}if(void 0!==t.normalTexture){const s=t.normalTexture;e.setNormalTexture(l[c[s.index].source]),J(e.getNormalTextureInfo(),s),V(e.getNormalTextureSampler(),s,r),void 0!==t.normalTexture.scale&&e.setNormalScale(t.normalTexture.scale)}if(void 0!==t.occlusionTexture){const s=t.occlusionTexture;e.setOcclusionTexture(l[c[s.index].source]),J(e.getOcclusionTextureInfo(),s),V(e.getOcclusionTextureSampler(),s,r),void 0!==t.occlusionTexture.strength&&e.setOcclusionStrength(t.occlusionTexture.strength)}if(void 0!==s.metallicRoughnessTexture){const t=s.metallicRoughnessTexture;e.setMetallicRoughnessTexture(l[c[t.index].source]),J(e.getMetallicRoughnessTextureInfo(),t),V(e.getMetallicRoughnessTextureSampler(),t,r)}return e}),d=(i.meshes\|\|[]).map(t=>{const e=n.createMesh(t.name);return void 0!==t.weights&&e.setWeights(t.weights),t.primitives.forEach(s=>{const r=n.createPrimitive();void 0!==s.material&&r.setMaterial(f[s.material]),void 0!==s.mode&&r.setMode(s.mode);for(const[t,e]of Object.entries(s.attributes\|\|{}))r.setAttribute(t,u[e]);void 0!==s.indices&&r.setIndices(u[s.indices]);const i=t.extras&&t.extras.targetNames\|\|[];(s.targets\|\|[]).forEach((t,e)=>{const s=i[e]\|\|e.toString(),h=n.createPrimitiveTarget(s);for(const[e,s]of Object.entries(t))h.setAttribute(e,u[s]);r.addTarget(h)}),e.addPrimitive(r)}),e}),g=(i.cameras\|\|[]).map(t=>{const e=n.createCamera(t.name).setType(t.type);return"perspective"===t.type?e.setZNear(t.perspective.znear).setZFar(t.perspective.zfar).setYFov(t.perspective.yfov).setAspectRatio(t.perspective.aspectRatio):e.setZNear(t.orthographic.znear).setZFar(t.orthographic.zfar).setXMag(t.orthographic.xmag).setYMag(t.orthographic.ymag),e}),p=i.nodes\|\|[],m=p.map(r=>{const i=n.createNode(r.name);return void 0!==r.translation&&i.setTranslation(r.translation),void 0!==r.rotation&&i.setRotation(r.rotation),void 0!==r.scale&&i.setScale(r.scale),void 0!==r.matrix&&(i.setTranslation(t([],r.matrix)),i.setRotation(e([],r.matrix)),i.setScale(s([],r.matrix))),void 0!==r.weights&&i.setWeights(r.weights),i}),v=(i.skins\|\|[]).map(t=>{const e=n.createSkin(t.name);void 0!==t.inverseBindMatrices&&e.setInverseBindMatrices(u[t.inverseBindMatrices]),void 0!==t.skeleton&&e.setSkeleton(m[t.skeleton]);for(const s of t.joints)e.addJoint(m[s]);return e});return p.map((t,e)=>{const s=m[e];(t.children\|\|[]).forEach(t=>s.addChild(m[t])),void 0!==t.mesh&&s.setMesh(d[t.mesh]),void 0!==t.camera&&s.setCamera(g[t.camera]),void 0!==t.skin&&s.setSkin(v[t.skin])}),(i.animations\|\|[]).map(t=>{const e=n.createAnimation(t.name),s=(t.samplers\|\|[]).map(t=>{const s=n.createAnimationSampler().setInput(u[t.input]).setOutput(u[t.output]).setInterpolation(t.interpolation\|\|"LINEAR");return e.addSampler(s),s});return(t.channels\|\|[]).forEach(t=>{const r=n.createAnimationChannel().setSampler(s[t.sampler]).setTargetNode(m[t.target.node]).setTargetPath(t.target.path);e.addChannel(r)}),e}),(i.scenes\|\|[]).map(t=>{const e=n.createScene(t.name);return(t.nodes\|\|[]).map(t=>m[t]).forEach(t=>e.addNode(t)),e}),n}}function J(t,e){void 0!==e.texCoord&&t.setTexCoord(e.texCoord)}function V(t,e,s){const r=s.json.textures[e.index];if(void 0===r.sampler)return;const i=s.json.samplers[r.sampler];void 0!==i.magFilter&&t.setMagFilter(i.magFilter),void 0!==i.minFilter&&t.setMinFilter(i.minFilter),void 0!==i.wrapS&&t.setWrapS(i.wrapS),void 0!==i.wrapT&&t.setWrapT(i.wrapT)}function W(t,e){const s=e.json.bufferViews[t.bufferView],r=e.json.buffers[s.buffer],i=r.uri?e.resources[r.uri]:e.resources["rt"],n=z[t.componentType],h=a.getElementSize(t.type);if(void 0!==s.byteStride&&s.byteStride!==hn.BYTES_PER_ELEMENT)return function(t,e){const s=e.json.bufferViews[t.bufferView],r=e.json.buffers[s.buffer],i=r.uri?e.resources[r.uri]:e.resources["rt"],n=z[t.componentType],h=a.getElementSize(t.type),o=n.BYTES_PER_ELEMENT,u=t.byteOffset\|\|0,c=new n(t.counth),l=new DataView(i,s.byteOffset,s.byteLength),f=s.byteStride;for(let e=0;e<t.count;e++)for(let s=0;s<h;s++){const r=u+ef+so;let i;switch(t.componentType){case 5126:i=l.getFloat32(r,!0);break;case 5125:i=l.getUint32(r,!0);break;case 5123:i=l.getUint16(r,!0);break;case 5121:i=l.getUint8(r);break;case 5122:i=l.getInt16(r,!0);break;case 5120:i=l.getInt8(r);break;default:throw new Error(`Unexpected componentType "${t.componentType}".`)}c[eh+s]=i}return c}(t,e);const o=(s.byteOffset\|\|0)+(t.byteOffset\|\|0);switch(t.componentType){case 5126:return new Float32Array(i,o,t.counth);case 5125:return new Uint32Array(i,o,t.counth);case 5123:return new Uint16Array(i,o,t.counth);case 5121:return new Uint8Array(i,o,t.counth);case 5122:return new Int16Array(i,o,t.counth);case 5120:return new Int8Array(i,o,t.counth);default:throw new Error(`Unexpected componentType "${t.componentType}".`)}}class Y{static write(t,e){const s=t.getRoot(),r={json:{asset:s.getAsset()},resources:{}},i=r.json,n=t.getLogger(),h=s.listBuffers().length,o=s.listTextures().length,u=new q(h>1,e.basename),c=new q(o>1,e.basename),l=new Map,f=new Map,d=new Map,g=new Map,p=new Map,m=new Map,w=new Map,A=new Map,T=new Map,x=[];function b(t,e,s,r){const n=[];let h=0;for(const e of t){const t=X(e);t.bufferView=i.bufferViews.length;const s=v.pad(e.getArray().buffer);t.byteOffset=h,h+=s.byteLength,n.push(s),l.set(e,i.accessors.length),i.accessors.push(t)}const o={buffer:e,byteOffset:s,byteLength:v.concat(n).byteLength};return r&&(o.target=r),i.bufferViews.push(o),{buffers:n,byteLength:h}}function M(t,e,s){const r=t[0].getCount();let n=0;for(const e of t){const t=X(e);t.bufferView=i.bufferViews.length,t.byteOffset=n;const s=e.getElementSize(),r=e.getComponentSize();n+=v.padNumber(sr),l.set(e,i.accessors.length),i.accessors.push(t)}const h=rn,o=new ArrayBuffer(h),u=new DataView(o);for(let e=0;e<r;e++){let s=0;for(const r of t){const t=r.getElementSize(),i=r.getComponentSize(),h=r.getComponentType(),o=r.getArray();for(let r=0;r<t;r++){const c=en+s+ri,a=o[et+r];switch(h){case 5126:u.setFloat32(c,a,!0);break;case 5120:u.setInt8(c,a);break;case 5122:u.setInt16(c,a,!0);break;case 5121:u.setUint8(c,a);break;case 5123:u.setUint16(c,a,!0);break;case 5125:u.setUint32(c,a,!0);break;default:throw new Error("Unexpected component type: "+h)}}s+=v.padNumber(ti)}}return i.bufferViews.push({buffer:e,byteOffset:s,byteLength:h,byteStride:n,target:34962}),{byteLength:h,buffers:[o]}}function y(t,e,s){const r={magFilter:s.getMagFilter()\|\|void 0,minFilter:s.getMinFilter()\|\|void 0,wrapS:s.getWrapS(),wrapT:s.getWrapT()},n=JSON.stringify(r);T.has(n)\|\|(T.set(n,i.samplers.length),i.samplers.push(r));const h={source:w.get(t),sampler:T.get(n)},o=JSON.stringify(h);return A.has(o)\|\|(A.set(o,i.textures.length),i.textures.push(h)),{index:A.get(o),texCoord:e.getTexCoord()}}const E=new Map;for(const e of t.getGraph().getLinks()){if(e.getParent()===s)continue;const t=e.getChild();if(t instanceof a){const s=E.get(t)\|\|[];s.push(e),E.set(t,s)}}return i.accessors=[],i.bufferViews=[],i.samplers=[],i.textures=[],i.images=s.listTextures().map((t,s)=>{const n=Z(t);if(t.getMimeType()&&(n.mimeType=t.getMimeType()),e.isGLB)x.push(t.getImage()),n.bufferView=i.bufferViews.length,i.bufferViews.push({buffer:0,byteOffset:-1,byteLength:t.getImage().byteLength});else{const e="image/png"===t.getMimeType()?"png":"jpeg";n.uri=c.createURI(t,e),r.resources[n.uri]=t.getImage()}return w.set(t,s),n}),i.buffers=[],s.listBuffers().forEach(t=>{const s=Z(t),h=new Map,o=new Set,c=new Set,l=t.listParents().filter(t=>!(t instanceof F));for(const t of l){if(!(t instanceof a))throw new Error("Unimplemented buffer reference: "+t);let e=!1,s=!1,r=!1;const i=E.get(t)\|\|[];for(const t of i)t instanceof I?e=!0:t instanceof B?s=!0:r=!0;if(e\|\|s\|\|r\|\|(r=!0),!e\|\|s\|\|r)if(!s\|\|e\|\|r){if(!r\|\|e\|\|s)throw new Error("Attribute or index accessors must be used only for that purpose.");c.add(t)}else o.add(t);else{const e=i[0].getParent(),s=h.get(e)\|\|new Set;s.add(t),h.set(e,s)}}const f=[],d=i.buffers.length;let g,p=0;if(o.size){const t=b(Array.from(o),d,p,34963);p+=t.byteLength,f.push(...t.buffers)}for(const t of Array.from(h.values()))if(t.size){const e=M(Array.from(t),d,p);p+=e.byteLength,f.push(...e.buffers)}if(c.size){const t=b(Array.from(c),d,p);p+=t.byteLength,f.push(...t.buffers)}if(x.length)for(let t=0;t<x.length;t++)i.bufferViews[i.images[t].bufferView].byteOffset=p,p+=x[t].byteLength,f.push(x[t]);p?(e.isGLB?g="__glb.bin":(g=u.createURI(t,"bin"),s.uri=g),s.byteLength=p,r.resources[g]=v.concat(f),i.buffers.push(s)):n.warn(`@gltf-transform/core: Skipping empty buffer, "${t.getName()}".`)}),i.materials=s.listMaterials().map((t,e)=>{const s=Z(t);if(s.alphaMode=t.getAlphaMode(),"MASK"===t.getAlphaMode()&&(s.alphaCutoff=t.getAlphaCutoff()),s.doubleSided=t.getDoubleSided(),s.pbrMetallicRoughness={},s.pbrMetallicRoughness.baseColorFactor=t.getBaseColorFactor(),s.emissiveFactor=t.getEmissiveFactor(),s.pbrMetallicRoughness.roughnessFactor=t.getRoughnessFactor(),s.pbrMetallicRoughness.metallicFactor=t.getMetallicFactor(),t.getBaseColorTexture()){const e=t.getBaseColorTexture(),r=t.getBaseColorTextureInfo(),i=t.getBaseColorTextureSampler();s.pbrMetallicRoughness.baseColorTexture=y(e,r,i)}if(t.getEmissiveTexture()){const e=t.getEmissiveTexture(),r=t.getEmissiveTextureInfo(),i=t.getEmissiveTextureSampler();s.emissiveTexture=y(e,r,i)}if(t.getNormalTexture()){const e=y(t.getNormalTexture(),t.getNormalTextureInfo(),t.getNormalTextureSampler());1!==t.getNormalScale()&&(e.scale=t.getNormalScale()),s.normalTexture=e}if(t.getOcclusionTexture()){const e=y(t.getOcclusionTexture(),t.getOcclusionTextureInfo(),t.getOcclusionTextureSampler());1!==t.getOcclusionStrength()&&(e.strength=t.getOcclusionStrength()),s.occlusionTexture=e}if(t.getMetallicRoughnessTexture()){const e=t.getMetallicRoughnessTexture(),r=t.getMetallicRoughnessTextureInfo(),i=t.getMetallicRoughnessTextureSampler();s.pbrMetallicRoughness.metallicRoughnessTexture=y(e,r,i)}return g.set(t,e),s}),i.meshes=s.listMeshes().map((t,e)=>{const s=Z(t);let r;return s.primitives=t.listPrimitives().map(t=>{const e={attributes:{}};e.material=g.get(t.getMaterial()),e.mode=t.getMode(),t.getIndices()&&(e.indices=l.get(t.getIndices()));for(const s of t.listSemantics())e.attributes[s]=l.get(t.getAttribute(s));for(const s of t.listTargets()){const t={};for(const e of s.listSemantics())t[e]=l.get(s.getAttribute(e));e.targets=e.targets\|\|[],e.targets.push(t)}return 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e=this.path.dirname(t),s={json:JSON.parse(this.fs.readFileSync(t,"utf8")),resources:{}};return[...s.json.images\|\|[],...s.json.buffers\|\|[]].forEach(t=>{if(t.uri&&!t.uri.match(/data:/)){const r=this.path.resolve(e,t.uri);s.resources[t.uri]=v.trim(this.fs.readFileSync(r))}else{const e=`__${E()}.${w.extension(t.uri)}`;s.resources[e]=v.createBufferFromDataURI(t.uri),t.uri=e}}),$.read(s)}writeGLTF(t,e){const s={basename:w.basename(t),isGLB:!1},{json:r,resources:i}=Y.write(e,s),{fs:n,path:h}=this,o=h.dirname(t);n.writeFileSync(t,JSON.stringify(r,null,2)),Object.keys(i).forEach(t=>{const e=Buffer.from(i[t]);n.writeFileSync(h.join(o,t),e)})}writeGLB(t,e){const s=Buffer.from(this.packGLB(e));this.fs.writeFileSync(t,s)}}class Q extends H{constructor(t){super(),this.fetchConfig=t}read(t){return t.match(/\.glb$/)?this.readGLB(t):this.readGLTF(t)}readGLTF(t){const e={json:{},resources:{}};return fetch(t,this.fetchConfig).then(t=>t.json()).then(t=>{e.json=t;const s=[...t.images,...t.buffers].map(t=>{if(t.uri)return fetch(t.uri,this.fetchConfig).then(t=>t.arrayBuffer()).then(s=>{e.resources[t.uri]=s})});return Promise.all(s).then(()=>this.createDocument(e))})}readGLB(t){return fetch(t,this.fetchConfig).then(t=>t.arrayBuffer()).then(t=>this.unpackGLB(t))}}export{a as Accessor,f as Animation,d as AnimationChannel,g as AnimationSampler,p as Buffer,v as BufferUtils,m as Camera,D as Document,w as FileUtils,n as Graph,A as ImageUtils,x as Logger,U as Material,L as Mesh,_ as Node,K as NodeIO,O as Primitive,P as PrimitiveTarget,c as Property,F as Root,G as Scene,j as Skin,S as Texture,N as TextureInfo,C as TextureSampler,Q as WebIO,E as uuid};
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l(t){return t}a.Type={SCALAR:"SCALAR",VEC2:"VEC2",VEC3:"VEC3",VEC4:"VEC4",MAT3:"MAT3",MAT4:"MAT4"},a.ComponentType={BYTE:5120,UNSIGNED_BYTE:5121,SHORT:5122,UNSIGNED_SHORT:5123,UNSIGNED_INT:5125,FLOAT:5126},r([h],a.prototype,"buffer",void 0);class d extends c{constructor(){super(...arguments),this.propertyType="Animation",this.channels=[],this.samplers=[]}addChannel(t){const e=this.l.link("channel",this,t);return this.addGraphChild(this.channels,e)}removeChannel(t){return this.removeGraphChild(this.channels,t)}listChannels(){return this.channels.map(t=>t.getChild())}addSampler(t){const e=this.l.link("sampler",this,t);return this.addGraphChild(this.samplers,e)}removeSampler(t){return this.removeGraphChild(this.samplers,t)}listSamplers(){return this.samplers.map(t=>t.getChild())}}r([o],d.prototype,"channels",void 0),r([o],d.prototype,"samplers",void 0);class f extends 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t=this.mimeType?"image/png"===this.mimeType:this.uri.match(/\.png$/),t?x.getSizePNG(Buffer.from(this.image)):x.getSizeJPEG(Buffer.from(this.image))}}class R{constructor(){this.propertyType="TextureInfo",this.texCoord=0}getTexCoord(){return this.texCoord}setTexCoord(t){return this.texCoord=t,this}}class C{constructor(){this.propertyType="TextureSampler",this.P=null,this.O=null,this.F=10497,this.G=10497}getMagFilter(){return this.P}setMagFilter(t){return this.P=t,this}getMinFilter(){return this.O}setMinFilter(t){return this.O=t,this}getWrapS(){return this.F}setWrapS(t){return this.F=t,this}getWrapT(){return this.G}setWrapT(t){return this.G=t,this}}C.TextureWrapMode={CLAMP_TO_EDGE:33071,MIRRORED_REPEAT:33648,REPEAT:10497},C.TextureMagFilter={NEAREST:9728,LINEAR:9729},C.TextureMinFilter={NEAREST:9728,LINEAR:9729,NEAREST_MIPMAP_NEAREST:9984,LINEAR_MIPMAP_NEAREST:9985,NEAREST_MIPMAP_LINEAR:9986,LINEAR_MIPMAP_LINEAR:9987};class I extends i{constructor(){super(...arguments),this.textureInfo=new R,this.sampler=new C}}class _ extends i{constructor(){super(...arguments),this.semantic=""}}class B extends i{}class U extends n{linkTexture(t,e,s){if(!s)return null;const r=new I(t,e,s);return this.registerLink(r),r}linkAttribute(t,e,s){if(!s)return null;const r=new _(t,e,s);return this.registerLink(r),r}linkIndex(t,e,s){if(!s)return null;const r=new B(t,e,s);return this.registerLink(r),r}}class k extends c{constructor(){super(...arguments),this.propertyType="Material",this.D="OPAQUE",this.j=.5,this.$=!1,this.J=[1,1,1,1],this.V=[0,0,0],this.W=1,this.Y=1,this.q=1,this.Z=1,this.baseColorTexture=null,this.emissiveTexture=null,this.normalTexture=null,this.occlusionTexture=null,this.metallicRoughnessTexture=null}getDoubleSided(){return this.$}setDoubleSided(t){return this.$=t,this}getAlphaMode(){return this.D}setAlphaMode(t){return this.D=t,this}getAlphaCutoff(){return this.j}setAlphaCutoff(t){return this.j=t,this}getBaseColorFactor(){return this.J}setBaseColorFactor(t){return this.J=t,this}getBaseColorTexture(){return this.baseColorTexture?this.baseColorTexture.getChild():null}getBaseColorTextureInfo(){return this.baseColorTexture?this.baseColorTexture.textureInfo:null}getBaseColorTextureSampler(){return this.baseColorTexture?this.baseColorTexture.sampler:null}setBaseColorTexture(t){return this.baseColorTexture=this.l.linkTexture("baseColorTexture",this,t),this}getEmissiveFactor(){return this.V}setEmissiveFactor(t){return this.V=t,this}getEmissiveTexture(){return this.emissiveTexture?this.emissiveTexture.getChild():null}getEmissiveTextureInfo(){return this.emissiveTexture?this.emissiveTexture.textureInfo:null}getEmissiveTextureSampler(){return this.emissiveTexture?this.emissiveTexture.sampler:null}setEmissiveTexture(t){return this.emissiveTexture=this.l.linkTexture("emissiveTexture",this,t),this}getNormalScale(){return this.W}setNormalScale(t){return this.W=t,this}getNormalTexture(){return this.normalTexture?this.normalTexture.getChild():null}getNormalTextureInfo(){return this.normalTexture?this.normalTexture.textureInfo:null}getNormalTextureSampler(){return this.normalTexture?this.normalTexture.sampler:null}setNormalTexture(t){return this.normalTexture=this.l.linkTexture("normalTexture",this,t),this}getOcclusionStrength(){return this.Y}setOcclusionStrength(t){return this.Y=t,this}getOcclusionTexture(){return this.occlusionTexture?this.occlusionTexture.getChild():null}getOcclusionTextureInfo(){return this.occlusionTexture?this.occlusionTexture.textureInfo:null}getOcclusionTextureSampler(){return this.occlusionTexture?this.occlusionTexture.sampler:null}setOcclusionTexture(t){return this.occlusionTexture=this.l.linkTexture("occlusionTexture",this,t),this}getRoughnessFactor(){return this.q}setRoughnessFactor(t){return this.q=t,this}getMetallicFactor(){return this.Z}setMetallicFactor(t){return this.Z=t,this}getMetallicRoughnessTexture(){return this.metallicRoughnessTexture?this.metallicRoughnessTexture.getChild():null}getMetallicRoughnessTextureInfo(){return this.metallicRoughnessTexture?this.metallicRoughnessTexture.textureInfo:null}getMetallicRoughnessTextureSampler(){return this.metallicRoughnessTexture?this.metallicRoughnessTexture.sampler:null}setMetallicRoughnessTexture(t){return this.metallicRoughnessTexture=this.l.linkTexture("metallicRoughnessTexture",this,t),this}}r([h],k.prototype,"baseColorTexture",void 0),r([h],k.prototype,"emissiveTexture",void 0),r([h],k.prototype,"normalTexture",void 0),r([h],k.prototype,"occlusionTexture",void 0),r([h],k.prototype,"metallicRoughnessTexture",void 0);class L extends c{constructor(){super(...arguments),this.propertyType="Mesh",this.X=[],this.primitives=[]}addPrimitive(t){return this.addGraphChild(this.primitives,this.l.link("primitive",this,t))}removePrimitive(t){return this.removeGraphChild(this.primitives,t)}listPrimitives(){return this.primitives.map(t=>t.getChild())}getWeights(){return this.X}setWeights(t){return this.X=t,this}}r([o],L.prototype,"primitives",void 0);class P extends u{constructor(){super(...arguments),this.propertyType="Primitive",this.H=4,this.indices=null,this.attributes=[],this.targets=[],this.material=null}getIndices(){return this.indices?this.indices.getChild():null}setIndices(t){return this.indices=this.l.linkIndex("index",this,t),this}getAttribute(t){const e=this.attributes.find(e=>e.semantic===t);return e?e.getChild():null}setAttribute(t,e){const s=this.getAttribute(t);if(s&&this.removeGraphChild(this.attributes,s),!e)return this;const r=this.l.linkAttribute(t.toLowerCase(),this,e);return r.semantic=t,this.addGraphChild(this.attributes,r)}listAttributes(){return this.attributes.map(t=>t.getChild())}listSemantics(){return this.attributes.map(t=>t.semantic)}getMaterial(){return this.material?this.material.getChild():null}setMaterial(t){return this.material=this.l.link("material",this,t),this}getMode(){return this.H}setMode(t){return this.H=t,this}listTargets(){return this.targets.map(t=>t.getChild())}addTarget(t){return this.addGraphChild(this.targets,this.l.link("target",this,t)),this}removeTarget(t){return this.removeGraphChild(this.targets,t)}}r([h],P.prototype,"indices",void 0),r([o],P.prototype,"attributes",void 0),r([o],P.prototype,"targets",void 0),r([h],P.prototype,"material",void 0);class O extends u{constructor(){super(...arguments),this.propertyType="PrimitiveTarget",this.attributes=[]}getAttribute(t){const e=this.attributes.find(e=>e.semantic===t);return e?e.getChild():null}setAttribute(t,e){const s=this.getAttribute(t);if(s&&this.removeGraphChild(this.attributes,s),!e)return this;const r=this.l.linkAttribute(t.toLowerCase(),this,e);return r.semantic=t,this.addGraphChild(this.attributes,r)}listAttributes(){return this.attributes.map(t=>t.getChild())}listSemantics(){return this.attributes.map(t=>t.semantic)}}r([o],O.prototype,"attributes",void 0);class F extends c{constructor(){super(...arguments),this.propertyType="Node",this.K=[0,0,0],this.tt=[0,0,0,1],this.et=[1,1,1],this.X=[],this.camera=null,this.mesh=null,this.skin=null,this.children=[]}getTranslation(){return this.K}getRotation(){return this.tt}getScale(){return this.et}setTranslation(t){return this.K=t,this}setRotation(t){return this.tt=t,this}setScale(t){return this.et=t,this}addChild(t){const e=this.l.link("child",this,t);return this.addGraphChild(this.children,e)}removeChild(t){return this.removeGraphChild(this.children,t)}listChildren(){return this.children.map(t=>t.getChild())}getMesh(){return this.mesh?this.mesh.getChild():null}setMesh(t){return this.mesh=this.l.link("mesh",this,t),this}getCamera(){return this.camera?this.camera.getChild():null}setCamera(t){return this.camera=this.l.link("camera",this,t),this}getSkin(){return this.skin?this.skin.getChild():null}setSkin(t){return this.skin=this.l.link("skin",this,t),this}getWeights(){return this.X}setWeights(t){return this.X=t,this}}r([h],F.prototype,"camera",void 0),r([h],F.prototype,"mesh",void 0),r([h],F.prototype,"skin",void 0),r([o],F.prototype,"children",void 0);class G extends u{constructor(){super(...arguments),this.propertyType="Root",this.st={generator:"glTF-Transform v0.4.0-alpha.0",version:"2.0"},this.rt=new Set,this.scenes=[],this.nodes=[],this.cameras=[],this.skins=[],this.meshes=[],this.materials=[],this.textures=[],this.animations=[],this.accessors=[],this.buffers=[]}getAsset(){return this.st}listExtensionsUsed(){return Array.from(this.rt)}listExtensionsRequired(){return this.listExtensionsUsed().filter(t=>t.isRequired())}it(t){if(this.rt.has(t))throw new Error(`Extension "${t.extensionName}" is already enabled.`);return this.rt.add(t),this}nt(t){return this.rt.delete(t),this}ht(t){return this.addGraphChild(this.scenes,this.l.link("scene",this,t))}listScenes(){return this.scenes.map(t=>t.getChild())}ot(t){return this.addGraphChild(this.nodes,this.l.link("node",this,t))}listNodes(){return this.nodes.map(t=>t.getChild())}ut(t){return this.addGraphChild(this.cameras,this.l.link("camera",this,t))}listCameras(){return this.cameras.map(t=>t.getChild())}ct(t){return this.addGraphChild(this.skins,this.l.link("skin",this,t))}listSkins(){return this.skins.map(t=>t.getChild())}at(t){return this.addGraphChild(this.meshes,this.l.link("mesh",this,t))}listMeshes(){return this.meshes.map(t=>t.getChild())}lt(t){return this.addGraphChild(this.materials,this.l.link("material",this,t))}listMaterials(){return this.materials.map(t=>t.getChild())}dt(t){return this.addGraphChild(this.textures,this.l.link("texture",this,t))}listTextures(){return this.textures.map(t=>t.getChild())}ft(t){return this.addGraphChild(this.animations,this.l.link("animation",this,t))}listAnimations(){return this.animations.map(t=>t.getChild())}gt(t){return this.addGraphChild(this.accessors,this.l.link("accessor",this,t))}listAccessors(){return this.accessors.map(t=>t.getChild())}pt(t){return this.addGraphChild(this.buffers,this.l.link("buffer",this,t))}listBuffers(){return this.buffers.map(t=>t.getChild())}}r([o],G.prototype,"scenes",void 0),r([o],G.prototype,"nodes",void 0),r([o],G.prototype,"cameras",void 0),r([o],G.prototype,"skins",void 0),r([o],G.prototype,"meshes",void 0),r([o],G.prototype,"materials",void 0),r([o],G.prototype,"textures",void 0),r([o],G.prototype,"animations",void 0),r([o],G.prototype,"accessors",void 0),r([o],G.prototype,"buffers",void 0);class D extends c{constructor(){super(...arguments),this.propertyType="Scene",this.nodes=[]}addNode(t){return this.addGraphChild(this.nodes,this.l.link("node",this,t))}removeNode(t){return this.removeGraphChild(this.nodes,t)}listNodes(){return this.nodes.map(t=>t.getChild())}}r([o],D.prototype,"nodes",void 0);class j extends c{constructor(){super(...arguments),this.propertyType="Skin",this.skeleton=null,this.inverseBindMatrices=null,this.joints=[]}getSkeleton(){return this.skeleton?this.skeleton.getChild():null}setSkeleton(t){return this.skeleton=this.l.link("skeleton",this,t),this}getInverseBindMatrices(){return this.inverseBindMatrices?this.inverseBindMatrices.getChild():null}setInverseBindMatrices(t){return this.inverseBindMatrices=this.l.link("inverseBindMatrices",this,t),this}addJoint(t){const e=this.l.link("joint",this,t);return this.addGraphChild(this.joints,e)}removeJoint(t){return this.removeGraphChild(this.joints,t)}listJoints(){return this.joints.map(t=>t.getChild())}}r([h],j.prototype,"skeleton",void 0),r([h],j.prototype,"inverseBindMatrices",void 0),r([o],j.prototype,"joints",void 0);class z{constructor(){this.graph=new U,this.root=new G(this.graph),this.logger=new E(E.Verbosity.INFO)}getRoot(){return this.root}getGraph(){return this.graph}getLogger(){return this.logger}setLogger(t){return this.logger=t,this}clone(){throw new Error("Not implemented.")}transform(...t){for(const e of t)e(this);return this}createExtension(t){return this.getRoot().listExtensionsUsed().find(e=>e.extensionName===t.EXTENSION_NAME)\|\|new t(this)}createScene(t){const e=new D(this.graph,t);return this.root.ht(e),e}createNode(t){const e=new F(this.graph,t);return this.root.ot(e),e}createCamera(t){const e=new m(this.graph,t);return this.root.ut(e),e}createSkin(t){const e=new j(this.graph,t);return this.root.ct(e),e}createMesh(t){const e=new L(this.graph,t);return this.root.at(e),e}createPrimitive(){return new P(this.graph)}createPrimitiveTarget(t){return new O(this.graph,t)}createMaterial(t){const e=new k(this.graph,t);return this.root.lt(e),e}createTexture(t){const e=new N(this.graph,t);return this.root.dt(e),e}createAnimation(t){const e=new d(this.graph,t);return this.root.ft(e),e}createAnimationChannel(){return new f(this.graph)}createAnimationSampler(){return new g(this.graph)}createAccessor(t,e=null){e\|\|(e=this.getRoot().listBuffers()[0]);const s=new a(this.graph,t).setBuffer(e);return this.root.gt(s),s}createBuffer(t){const e=new p(this.graph,t);return this.root.pt(e),e}}class ${constructor(t){this.doc=t,this.wt=!1,this.vt=new Set,t.getRoot().it(this)}dispose(){this.doc.getRoot().nt(this);for(const t of this.vt)t.dispose()}isRequired(){return this.wt}setRequired(t){return this.wt=t,this}addExtensionProperty(t){return this.vt.add(t),this}removeExtensionProperty(t){return this.vt.delete(t),this}}class J{constructor(t){this.nativeDocument=t,this.buffers=[],this.bufferViewBuffers=[],this.accessors=[],this.textures=[],this.materials=[],this.meshes=[],this.cameras=[],this.nodes=[],this.skins=[],this.animations=[],this.scenes=[]}}const V={5120:Int8Array,5121:Uint8Array,5122:Int16Array,5123:Uint16Array,5125:Uint32Array,5126:Float32Array};class W{static read(r,i){const{json:n}=r,h=new z;if("2.0"!==n.asset.version)throw new Error(`Unsupported glTF version: "${n.asset.version}".`);const o=new J(r);o.buffers=(n.buffers\|\|[]).map(t=>{const e=h.createBuffer(t.name);return t.uri&&0!==t.uri.indexOf("__")&&e.setURI(t.uri),e}),o.bufferViewBuffers=(n.bufferViews\|\|[]).map(t=>o.buffers[t.buffer]),o.accessors=(n.accessors\|\|[]).map(t=>{const e=h.createAccessor(t.name,o.bufferViewBuffers[t.bufferView]);let s;return e.setType(t.type),s=void 0!==t.sparse?function(t,e){const s=V[t.componentType],r=a.getElementSize(t.type);let i;i=void 0!==t.bufferView?Z(t,e).slice():new s(t.countr);const n=t.sparse.count,h={...t,...t.sparse.indices,count:n,type:"SCALAR"},o={...t,...t.sparse.values,count:n},u=Z(h,e),c=Z(o,e);for(let t=0;t<h.count;t++)for(let e=0;e<r;e++)i[u[t]r+e]=c[tr+e];return i}(t,r):Z(t,r).slice(),void 0!==t.normalized&&e.setNormalized(t.normalized),e.setArray(s),e});const u=n.textures\|\|[];o.textures=(n.images\|\|[]).map(t=>{const e=h.createTexture(t.name);if(void 0!==t.bufferView){const s=n.bufferViews[t.bufferView],i=r.json.buffers[s.buffer],h=s.byteOffset\|\|0,o=(i.uri?r.resources[i.uri]:r.resources["At"]).slice(h,h+s.byteLength);e.setImage(o)}else void 0!==t.uri&&(e.setImage(r.resources[t.uri]),0!==t.uri.indexOf("__")&&e.setURI(t.uri));if(void 0!==t.mimeType)e.setMimeType(t.mimeType);else if(t.uri){const s=A.extension(t.uri);e.setMimeType("png"===s?"image/png":"image/jpeg")}return e}),o.materials=(n.materials\|\|[]).map(t=>{const e=h.createMaterial(t.name);void 0!==t.alphaMode&&e.setAlphaMode(t.alphaMode),void 0!==t.alphaCutoff&&e.setAlphaCutoff(t.alphaCutoff),void 0!==t.doubleSided&&e.setDoubleSided(t.doubleSided);const s=t.pbrMetallicRoughness\|\|{};if(void 0!==s.baseColorFactor&&e.setBaseColorFactor(s.baseColorFactor),void 0!==t.emissiveFactor&&e.setEmissiveFactor(t.emissiveFactor),void 0!==s.metallicFactor&&e.setMetallicFactor(s.metallicFactor),void 0!==s.roughnessFactor&&e.setRoughnessFactor(s.roughnessFactor),void 0!==s.baseColorTexture){const t=s.baseColorTexture;e.setBaseColorTexture(o.textures[u[t.index].source]),Y(e.getBaseColorTextureInfo(),t),q(e.getBaseColorTextureSampler(),t,r)}if(void 0!==t.emissiveTexture){const s=t.emissiveTexture;e.setEmissiveTexture(o.textures[u[s.index].source]),Y(e.getEmissiveTextureInfo(),s),q(e.getEmissiveTextureSampler(),s,r)}if(void 0!==t.normalTexture){const s=t.normalTexture;e.setNormalTexture(o.textures[u[s.index].source]),Y(e.getNormalTextureInfo(),s),q(e.getNormalTextureSampler(),s,r),void 0!==t.normalTexture.scale&&e.setNormalScale(t.normalTexture.scale)}if(void 0!==t.occlusionTexture){const s=t.occlusionTexture;e.setOcclusionTexture(o.textures[u[s.index].source]),Y(e.getOcclusionTextureInfo(),s),q(e.getOcclusionTextureSampler(),s,r),void 0!==t.occlusionTexture.strength&&e.setOcclusionStrength(t.occlusionTexture.strength)}if(void 0!==s.metallicRoughnessTexture){const t=s.metallicRoughnessTexture;e.setMetallicRoughnessTexture(o.textures[u[t.index].source]),Y(e.getMetallicRoughnessTextureInfo(),t),q(e.getMetallicRoughnessTextureSampler(),t,r)}return e}),o.meshes=(n.meshes\|\|[]).map(t=>{const e=h.createMesh(t.name);return void 0!==t.weights&&e.setWeights(t.weights),t.primitives.forEach(s=>{const r=h.createPrimitive();void 0!==s.material&&r.setMaterial(o.materials[s.material]),void 0!==s.mode&&r.setMode(s.mode);for(const[t,e]of Object.entries(s.attributes\|\|{}))r.setAttribute(t,o.accessors[e]);void 0!==s.indices&&r.setIndices(o.accessors[s.indices]);const i=t.extras&&t.extras.targetNames\|\|[];(s.targets\|\|[]).forEach((t,e)=>{const s=i[e]\|\|e.toString(),n=h.createPrimitiveTarget(s);for(const[e,s]of Object.entries(t))n.setAttribute(e,o.accessors[s]);r.addTarget(n)}),e.addPrimitive(r)}),e}),o.cameras=(n.cameras\|\|[]).map(t=>{const e=h.createCamera(t.name).setType(t.type);return"perspective"===t.type?e.setZNear(t.perspective.znear).setZFar(t.perspective.zfar).setYFov(t.perspective.yfov).setAspectRatio(t.perspective.aspectRatio):e.setZNear(t.orthographic.znear).setZFar(t.orthographic.zfar).setXMag(t.orthographic.xmag).setYMag(t.orthographic.ymag),e});const c=n.nodes\|\|[];o.nodes=c.map(r=>{const i=h.createNode(r.name);return void 0!==r.translation&&i.setTranslation(r.translation),void 0!==r.rotation&&i.setRotation(r.rotation),void 0!==r.scale&&i.setScale(r.scale),void 0!==r.matrix&&(i.setTranslation(t([],r.matrix)),i.setRotation(e([],r.matrix)),i.setScale(s([],r.matrix))),void 0!==r.weights&&i.setWeights(r.weights),i}),o.skins=(n.skins\|\|[]).map(t=>{const e=h.createSkin(t.name);void 0!==t.inverseBindMatrices&&e.setInverseBindMatrices(o.accessors[t.inverseBindMatrices]),void 0!==t.skeleton&&e.setSkeleton(o.nodes[t.skeleton]);for(const s of t.joints)e.addJoint(o.nodes[s]);return e}),c.map((t,e)=>{const s=o.nodes[e];(t.children\|\|[]).forEach(t=>s.addChild(o.nodes[t])),void 0!==t.mesh&&s.setMesh(o.meshes[t.mesh]),void 0!==t.camera&&s.setCamera(o.cameras[t.camera]),void 0!==t.skin&&s.setSkin(o.skins[t.skin])}),o.animations=(n.animations\|\|[]).map(t=>{const e=h.createAnimation(t.name),s=(t.samplers\|\|[]).map(t=>{const s=h.createAnimationSampler().setInput(o.accessors[t.input]).setOutput(o.accessors[t.output]).setInterpolation(t.interpolation\|\|"LINEAR");return e.addSampler(s),s});return(t.channels\|\|[]).forEach(t=>{const r=h.createAnimationChannel().setSampler(s[t.sampler]).setTargetNode(o.nodes[t.target.node]).setTargetPath(t.target.path);e.addChannel(r)}),e}),o.scenes=(n.scenes\|\|[]).map(t=>{const e=h.createScene(t.name);return(t.nodes\|\|[]).map(t=>o.nodes[t]).forEach(t=>e.addNode(t)),e});const l=n.extensionsUsed\|\|[],d=n.extensionsRequired\|\|[];for(const t of i.extensions)l.includes(t.EXTENSION_NAME)&&h.createExtension(t).setRequired(d.includes(t.EXTENSION_NAME)).read(o);return h}}function Y(t,e){void 0!==e.texCoord&&t.setTexCoord(e.texCoord)}function q(t,e,s){const r=s.json.textures[e.index];if(void 0===r.sampler)return;const i=s.json.samplers[r.sampler];void 0!==i.magFilter&&t.setMagFilter(i.magFilter),void 0!==i.minFilter&&t.setMinFilter(i.minFilter),void 0!==i.wrapS&&t.setWrapS(i.wrapS),void 0!==i.wrapT&&t.setWrapT(i.wrapT)}function Z(t,e){const s=e.json.bufferViews[t.bufferView],r=e.json.buffers[s.buffer],i=r.uri?e.resources[r.uri]:e.resources["At"],n=V[t.componentType],h=a.getElementSize(t.type);if(void 0!==s.byteStride&&s.byteStride!==hn.BYTES_PER_ELEMENT)return function(t,e){const s=e.json.bufferViews[t.bufferView],r=e.json.buffers[s.buffer],i=r.uri?e.resources[r.uri]:e.resources["At"],n=V[t.componentType],h=a.getElementSize(t.type),o=n.BYTES_PER_ELEMENT,u=t.byteOffset\|\|0,c=new n(t.counth),l=new DataView(i,s.byteOffset,s.byteLength),d=s.byteStride;for(let e=0;e<t.count;e++)for(let s=0;s<h;s++){const r=u+ed+so;let i;switch(t.componentType){case 5126:i=l.getFloat32(r,!0);break;case 5125:i=l.getUint32(r,!0);break;case 5123:i=l.getUint16(r,!0);break;case 5121:i=l.getUint8(r);break;case 5122:i=l.getInt16(r,!0);break;case 5120:i=l.getInt8(r);break;default:throw new Error(`Unexpected componentType "${t.componentType}".`)}c[eh+s]=i}return c}(t,e);const o=(s.byteOffset\|\|0)+(t.byteOffset\|\|0);switch(t.componentType){case 5126:return new Float32Array(i,o,t.counth);case 5125:return new Uint32Array(i,o,t.counth);case 5123:return new Uint16Array(i,o,t.counth);case 5121:return new Uint8Array(i,o,t.counth);case 5122:return new Int16Array(i,o,t.counth);case 5120:return new Int8Array(i,o,t.counth);default:throw new Error(`Unexpected componentType "${t.componentType}".`)}}class X{constructor(t){this.nativeDocument=t,this.accessorIndexMap=new Map,this.cameraIndexMap=new Map,this.skinIndexMap=new Map,this.materialIndexMap=new Map,this.meshIndexMap=new Map,this.nodeIndexMap=new Map,this.imageIndexMap=new Map,this.textureDefIndexMap=new Map,this.samplerDefIndexMap=new Map,this.imageData=[]}createTextureInfoDef(t,e,s){const r={magFilter:s.getMagFilter()\|\|void 0,minFilter:s.getMinFilter()\|\|void 0,wrapS:s.getWrapS(),wrapT:s.getWrapT()},i=JSON.stringify(r);this.samplerDefIndexMap.has(i)\|\|(this.samplerDefIndexMap.set(i,this.nativeDocument.json.samplers.length),this.nativeDocument.json.samplers.push(r));const n={source:this.imageIndexMap.get(t),sampler:this.samplerDefIndexMap.get(i)},h=JSON.stringify(n);return this.textureDefIndexMap.has(h)\|\|(this.textureDefIndexMap.set(h,this.nativeDocument.json.textures.length),this.nativeDocument.json.textures.push(n)),{index:this.textureDefIndexMap.get(h),texCoord:e.getTexCoord()}}createPropertyDef(t){const e={};return t.getName()&&(e.name=t.getName()),Object.keys(t.getExtras()).length>0&&(e.extras=t.getExtras()),e}createAccessorDef(t){const e=this.createPropertyDef(t);return e.type=t.getType(),e.componentType=t.getComponentType(),e.count=t.getCount(),t.getMax(e.max=[]),t.getMin(e.min=[]),e.normalized=t.getNormalized(),e}}class H{static write(t,e){const s=t.getRoot(),r={json:{asset:s.getAsset()},resources:{}},i=r.json,n=t.getLogger(),h=s.listBuffers().length,o=s.listTextures().length,u=new K(h>1,e.basename),c=new K(o>1,e.basename),l=new X(r);function d(t,e,s,r){const n=[];let h=0;for(const e of t){const t=l.createAccessorDef(e);t.bufferView=i.bufferViews.length;const s=v.pad(e.getArray().buffer);t.byteOffset=h,h+=s.byteLength,n.push(s),l.accessorIndexMap.set(e,i.accessors.length),i.accessors.push(t)}const o={buffer:e,byteOffset:s,byteLength:v.concat(n).byteLength};return r&&(o.target=r),i.bufferViews.push(o),{buffers:n,byteLength:h}}function f(t,e,s){const r=t[0].getCount();let n=0;for(const e of t){const t=l.createAccessorDef(e);t.bufferView=i.bufferViews.length,t.byteOffset=n;const s=e.getElementSize(),r=e.getComponentSize();n+=v.padNumber(sr),l.accessorIndexMap.set(e,i.accessors.length),i.accessors.push(t)}const h=rn,o=new ArrayBuffer(h),u=new DataView(o);for(let e=0;e<r;e++){let s=0;for(const r of t){const t=r.getElementSize(),i=r.getComponentSize(),h=r.getComponentType(),o=r.getArray();for(let r=0;r<t;r++){const c=en+s+ri,a=o[et+r];switch(h){case 5126:u.setFloat32(c,a,!0);break;case 5120:u.setInt8(c,a);break;case 5122:u.setInt16(c,a,!0);break;case 5121:u.setUint8(c,a);break;case 5123:u.setUint16(c,a,!0);break;case 5125:u.setUint32(c,a,!0);break;default:throw new Error("Unexpected component type: "+h)}}s+=v.padNumber(ti)}}return i.bufferViews.push({buffer:e,byteOffset:s,byteLength:h,byteStride:n,target:34962}),{byteLength:h,buffers:[o]}}const g=new Map;for(const e of t.getGraph().getLinks()){if(e.getParent()===s)continue;const t=e.getChild();if(t instanceof a){const s=g.get(t)\|\|[];s.push(e),g.set(t,s)}}return i.accessors=[],i.bufferViews=[],i.samplers=[],i.textures=[],i.images=s.listTextures().map((t,s)=>{const n=l.createPropertyDef(t);if(t.getMimeType()&&(n.mimeType=t.getMimeType()),e.isGLB)l.imageData.push(t.getImage()),n.bufferView=i.bufferViews.length,i.bufferViews.push({buffer:0,byteOffset:-1,byteLength:t.getImage().byteLength});else{const e="image/png"===t.getMimeType()?"png":"jpeg";n.uri=c.createURI(t,e),r.resources[n.uri]=t.getImage()}return l.imageIndexMap.set(t,s),n}),i.buffers=[],s.listBuffers().forEach(t=>{const s=l.createPropertyDef(t),h=new Map,o=new Set,c=new Set,p=t.listParents().filter(t=>!(t instanceof G));for(const t of p){if(!(t instanceof a))throw new Error("Unimplemented buffer reference: "+t);let e=!1,s=!1,r=!1;const i=g.get(t)\|\|[];for(const t of i)t instanceof _?e=!0:t instanceof B?s=!0:r=!0;if(e\|\|s\|\|r\|\|(r=!0),!e\|\|s\|\|r)if(!s\|\|e\|\|r){if(!r\|\|e\|\|s)throw new Error("Attribute or index accessors must be used only for that purpose.");c.add(t)}else o.add(t);else{const e=i[0].getParent(),s=h.get(e)\|\|new Set;s.add(t),h.set(e,s)}}const m=[],w=i.buffers.length;let A,x=0;if(o.size){const t=d(Array.from(o),w,x,34963);x+=t.byteLength,m.push(...t.buffers)}for(const t of Array.from(h.values()))if(t.size){const e=f(Array.from(t),w,x);x+=e.byteLength,m.push(...e.buffers)}if(c.size){const t=d(Array.from(c),w,x);x+=t.byteLength,m.push(...t.buffers)}if(l.imageData.length)for(let t=0;t<l.imageData.length;t++)i.bufferViews[i.images[t].bufferView].byteOffset=x,x+=l.imageData[t].byteLength,m.push(l.imageData[t]);x?(e.isGLB?A="__glb.bin":(A=u.createURI(t,"bin"),s.uri=A),s.byteLength=x,r.resources[A]=v.concat(m),i.buffers.push(s)):n.warn(`@gltf-transform/core: Skipping empty buffer, "${t.getName()}".`)}),i.materials=s.listMaterials().map((t,e)=>{const s=l.createPropertyDef(t);if(s.alphaMode=t.getAlphaMode(),"MASK"===t.getAlphaMode()&&(s.alphaCutoff=t.getAlphaCutoff()),s.doubleSided=t.getDoubleSided(),s.pbrMetallicRoughness={},s.pbrMetallicRoughness.baseColorFactor=t.getBaseColorFactor(),s.emissiveFactor=t.getEmissiveFactor(),s.pbrMetallicRoughness.roughnessFactor=t.getRoughnessFactor(),s.pbrMetallicRoughness.metallicFactor=t.getMetallicFactor(),t.getBaseColorTexture()){const e=t.getBaseColorTexture(),r=t.getBaseColorTextureInfo(),i=t.getBaseColorTextureSampler();s.pbrMetallicRoughness.baseColorTexture=l.createTextureInfoDef(e,r,i)}if(t.getEmissiveTexture()){const e=t.getEmissiveTexture(),r=t.getEmissiveTextureInfo(),i=t.getEmissiveTextureSampler();s.emissiveTexture=l.createTextureInfoDef(e,r,i)}if(t.getNormalTexture()){const e=t.getNormalTexture(),r=t.getNormalTextureInfo(),i=t.getNormalTextureSampler(),n=l.createTextureInfoDef(e,r,i);1!==t.getNormalScale()&&(n.scale=t.getNormalScale()),s.normalTexture=n}if(t.getOcclusionTexture()){const e=t.getOcclusionTexture(),r=t.getOcclusionTextureInfo(),i=t.getOcclusionTextureSampler(),n=l.createTextureInfoDef(e,r,i);1!==t.getOcclusionStrength()&&(n.strength=t.getOcclusionStrength()),s.occlusionTexture=n}if(t.getMetallicRoughnessTexture()){const e=t.getMetallicRoughnessTexture(),r=t.getMetallicRoughnessTextureInfo(),i=t.getMetallicRoughnessTextureSampler();s.pbrMetallicRoughness.metallicRoughnessTexture=l.createTextureInfoDef(e,r,i)}return l.materialIndexMap.set(t,e),s}),i.meshes=s.listMeshes().map((t,e)=>{const s=l.createPropertyDef(t);let r;return s.primitives=t.listPrimitives().map(t=>{const e={attributes:{}};e.material=l.materialIndexMap.get(t.getMaterial()),e.mode=t.getMode(),t.getIndices()&&(e.indices=l.accessorIndexMap.get(t.getIndices()));for(const s of t.listSemantics())e.attributes[s]=l.accessorIndexMap.get(t.getAttribute(s));for(const s of t.listTargets()){const t={};for(const e of s.listSemantics())t[e]=l.accessorIndexMap.get(s.getAttribute(e));e.targets=e.targets\|\|[],e.targets.push(t)}return t.listTargets().length&&!r&&(r=t.listTargets().map(t=>t.getName())),e}),t.getWeights().length&&(s.weights=t.getWeights()),r&&(s.extras=s.extras\|\|{},s.extras.targetNames=r),l.meshIndexMap.set(t,e),s}),i.cameras=s.listCameras().map((t,e)=>{const s=l.createPropertyDef(t);return s.type=t.getType(),"perspective"===s.type?s.perspective={znear:t.getZNear(),zfar:t.getZFar(),yfov:t.getYFov(),aspectRatio:t.getAspectRatio()}:s.orthographic={znear:t.getZNear(),zfar:t.getZFar(),xmag:t.getXMag(),ymag:t.getYMag()},l.cameraIndexMap.set(t,e),s}),i.nodes=s.listNodes().map((t,e)=>{const s=l.createPropertyDef(t);return s.translation=t.getTranslation(),s.rotation=t.getRotation(),s.scale=t.getScale(),t.getWeights().length&&(s.weights=t.getWeights()),l.nodeIndexMap.set(t,e),s}),i.skins=s.listSkins().map((t,e)=>{const s=l.createPropertyDef(t);return t.getInverseBindMatrices()&&(s.inverseBindMatrices=l.accessorIndexMap.get(t.getInverseBindMatrices())),t.getSkeleton()&&(s.skeleton=l.nodeIndexMap.get(t.getSkeleton())),s.joints=t.listJoints().map(t=>l.nodeIndexMap.get(t)),l.skinIndexMap.set(t,e),s}),s.listNodes().forEach((t,e)=>{const s=i.nodes[e];t.getMesh()&&(s.mesh=l.meshIndexMap.get(t.getMesh())),t.getCamera()&&(s.camera=l.cameraIndexMap.get(t.getCamera())),t.getSkin()&&(s.skin=l.skinIndexMap.get(t.getSkin())),t.listChildren().length>0&&(s.children=t.listChildren().map(t=>l.nodeIndexMap.get(t)))}),i.animations=s.listAnimations().map(t=>{const e=l.createPropertyDef(t),s=new Map;return e.samplers=t.listSamplers().map((t,e)=>{const r=l.createPropertyDef(t);return r.input=l.accessorIndexMap.get(t.getInput()),r.output=l.accessorIndexMap.get(t.getOutput()),r.interpolation=t.getInterpolation(),s.set(t,e),r}),e.channels=t.listChannels().map(t=>{const e=l.createPropertyDef(t);return e.sampler=s.get(t.getSampler()),e.target={node:l.nodeIndexMap.get(t.getTargetNode()),path:t.getTargetPath()},e}),e}),i.scenes=s.listScenes().map(t=>{const e=l.createPropertyDef(t);return e.nodes=t.listNodes().map(t=>l.nodeIndexMap.get(t)),e}),i.extensionsUsed=s.listExtensionsUsed().map(t=>t.extensionName),i.extensionsRequired=s.listExtensionsRequired().map(t=>t.extensionName),s.listExtensionsUsed().forEach(t=>t.write(l)),function(t){const e=[];for(const s in t){const r=t[s];Array.isArray(r)&&0===r.length?e.push(s):null!==r&&""!==r\|\|e.push(r)}for(const s of e)delete t[s]}(i),r}}class K{constructor(t,e){this.multiple=t,this.basename=e,this.counter=1}createURI(t,e){return t.getURI()?t.getURI():this.multiple?`${this.basename}_${this.counter++}.${e}`:`${this.basename}.${e}`}}class Q{constructor(){this.rt=[]}registerExtensions(t){return this.rt.push(...t),this}createDocument(t){return W.read(t,{extensions:this.rt})}createNativeDocument(t,e){if(e.isGLB&&1!==t.getRoot().listBuffers().length)throw new Error("GLB must have exactly 1 buffer.");return H.write(t,e)}unpackGLB(t){const e=new Uint32Array(t,0,3);if(1179937895!==e[0])throw new Error("Invalid glTF asset.");if(2!==e[1])throw new Error(`Unsupported glTF binary version, "${e[1]}".`);const s=new Uint32Array(t,12,2),r=s[0],i=new Uint32Array(t,20+r,2);if(1313821514!==s[1]\|\|5130562!==i[1])throw new Error("Unexpected GLB layout.");const n=v.decodeText(t.slice(20,20+r)),h=JSON.parse(n),o=20+r+8,u=t.slice(o,o+i[0]);return this.createDocument({json:h,resources:{At:u}})}packGLB(t){const{json:e,resources:s}=this.createNativeDocument(t,{basename:"",isGLB:!0}),r=JSON.stringify(e),i=v.pad(v.encodeText(r),32),n=new Uint32Array([i.byteLength,1313821514]).buffer,h=v.concat([n,i]),o=v.pad(Object.values(s)[0],0),u=new Uint32Array([o.byteLength,5130562]).buffer,c=v.concat([u,o]),a=new Uint32Array([1179937895,2,12+h.byteLength+c.byteLength]).buffer;return v.concat([a,h,c])}}class tt extends Q{constructor(t,e){super(),this.fs=t,this.path=e}read(t){return t.match(/\.glb$/)?this.readGLB(t):this.readGLTF(t)}write(t,e){t.match(/\.glb$/)?this.writeGLB(t,e):this.writeGLTF(t,e)}readGLB(t){const e=this.fs.readFileSync(t),s=v.trim(e);return this.unpackGLB(s)}readGLTF(t){const e=this.path.dirname(t),s={json:JSON.parse(this.fs.readFileSync(t,"utf8")),resources:{}};return[...s.json.images\|\|[],...s.json.buffers\|\|[]].forEach(t=>{if(t.uri&&!t.uri.match(/data:/)){const r=this.path.resolve(e,t.uri);s.resources[t.uri]=v.trim(this.fs.readFileSync(r))}else{const e=`__${S()}.${A.extension(t.uri)}`;s.resources[e]=v.createBufferFromDataURI(t.uri),t.uri=e}}),W.read(s,{extensions:this.rt})}writeGLTF(t,e){const s={basename:A.basename(t),isGLB:!1},{json:r,resources:i}=H.write(e,s),{fs:n,path:h}=this,o=h.dirname(t);n.writeFileSync(t,JSON.stringify(r,null,2)),Object.keys(i).forEach(t=>{const e=Buffer.from(i[t]);n.writeFileSync(h.join(o,t),e)})}writeGLB(t,e){const s=Buffer.from(this.packGLB(e));this.fs.writeFileSync(t,s)}}class et extends Q{constructor(t){super(),this.fetchConfig=t}read(t){return t.match(/\.glb$/)?this.readGLB(t):this.readGLTF(t)}readGLTF(t){const e={json:{},resources:{}};return fetch(t,this.fetchConfig).then(t=>t.json()).then(t=>{e.json=t;const s=[...t.images,...t.buffers].map(t=>{if(t.uri)return fetch(t.uri,this.fetchConfig).then(t=>t.arrayBuffer()).then(s=>{e.resources[t.uri]=s})});return Promise.all(s).then(()=>this.createDocument(e))})}readGLB(t){return fetch(t,this.fetchConfig).then(t=>t.arrayBuffer()).then(t=>this.unpackGLB(t))}}export{a as Accessor,d as Animation,f as AnimationChannel,g as AnimationSampler,p as Buffer,v as BufferUtils,m as Camera,z as Document,$ as Extension,w as ExtensionProperty,A as FileUtils,n as Graph,x as ImageUtils,E as Logger,k as Material,L as Mesh,F as Node,tt as NodeIO,P as Primitive,O as PrimitiveTarget,u as Property,J as ReaderContext,G as Root,D as Scene,j as Skin,N as Texture,R as TextureInfo,C as TextureSampler,et as WebIO,X as WriterContext,S as uuid};
		//# sourceMappingURL=core.modern.js.map

dist/core.umd.js

		@@ -1,2 +0,2 @@
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t(t,n,r){if(this.t=t,this.i=n,this.u=r,this.o=!1,this.s=[],!n.canLink(r))throw new Error("Cannot link disconnected graphs/documents.")}var n=t.prototype;return n.getName=function(){return this.t},n.getParent=function(){return this.i},n.getChild=function(){return this.u},n.setChild=function(t){return this.u=t,this},n.dispose=function(){this.o\|\|(this.o=!0,this.s.forEach(function(t){return t()}),this.s.length=0)},n.onDispose=function(t){return this.s.push(t),this},n.isDisposed=function(){return this.o},t}(),l=function(){function t(){this.h=[]}var n=t.prototype;return n.getLinks=function(){return this.h},n.listParents=function(t){return this.h.filter(function(n){return n.getChild()===t}).map(function(t){return t.getParent()})},n.listChildren=function(t){return this.h.filter(function(n){return n.getParent()===t}).map(function(t){return t.getChild()})},n.disconnectChildren=function(t){return this.h.filter(function(n){return n.getParent()===t}).forEach(function(t){return 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this.addGraphChild(this.scenes,this.v.link("scene",this,t))},r.removeScene=function(t){return this.removeGraphChild(this.scenes,t)},r.listScenes=function(){return this.scenes.map(function(t){return t.getChild()})},r.addNode=function(t){return this.addGraphChild(this.nodes,this.v.link("node",this,t))},r.removeNode=function(t){return this.removeGraphChild(this.nodes,t)},r.listNodes=function(){return this.nodes.map(function(t){return t.getChild()})},r.addCamera=function(t){return this.addGraphChild(this.cameras,this.v.link("camera",this,t))},r.removeCamera=function(t){return this.removeGraphChild(this.cameras,t)},r.listCameras=function(){return this.cameras.map(function(t){return t.getChild()})},r.addSkin=function(t){return this.addGraphChild(this.skins,this.v.link("skin",this,t))},r.removeSkin=function(t){return this.removeGraphChild(this.skins,t)},r.listSkins=function(){return this.skins.map(function(t){return t.getChild()})},r.addMesh=function(t){return 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this.root.addNode(n),n},n.createCamera=function(t){var n=new R(this.graph,t);return this.root.addCamera(n),n},n.createSkin=function(t){var n=new K(this.graph,t);return this.root.addSkin(n),n},n.createMesh=function(t){var n=new J(this.graph,t);return this.root.addMesh(n),n},n.createPrimitive=function(){return new z(this.graph)},n.createPrimitiveTarget=function(t){return new $(this.graph,t)},n.createMaterial=function(t){var n=new G(this.graph,t);return this.root.addMaterial(n),n},n.createTexture=function(t){var n=new L(this.graph,t);return this.root.addTexture(n),n},n.createAnimation=function(t){var n=new E(this.graph,t);return this.root.addAnimation(n),n},n.createAnimationChannel=function(){return new g(this.graph)},n.createAnimationSampler=function(){return new T(this.graph)},n.createAccessor=function(t,n){void 0===n&&(n=null),n\|\|(n=this.getRoot().listBuffers()[0]);var r=new A(this.graph,t).setBuffer(n);return this.root.addAccessor(r),r},n.createBuffer=function(t){var n=new 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l(this.graph,t).setBuffer(n);return this.root.dt(r),r},n.createBuffer=function(t){var n=new y(this.graph,t);return this.root.wt(n),n},t}(),Y=function(){function t(t){this.doc=t,this.pt=!1,this.At=new Set,t.getRoot().ut(this)}var n=t.prototype;return n.dispose=function(){this.doc.getRoot().et(this);for(var t,n=e(this.At);!(t=n()).done;)t.value.dispose()},n.isRequired=function(){return this.pt},n.setRequired=function(t){return this.pt=t,this},n.addExtensionProperty=function(t){return this.At.add(t),this},n.removeExtensionProperty=function(t){return this.At.delete(t),this},t}(),q=function(t){this.nativeDocument=t,this.buffers=[],this.bufferViewBuffers=[],this.accessors=[],this.textures=[],this.materials=[],this.meshes=[],this.cameras=[],this.nodes=[],this.skins=[],this.animations=[],this.scenes=[]},H={5120:Int8Array,5121:Uint8Array,5122:Int16Array,5123:Uint16Array,5125:Uint32Array,5126:Float32Array},K=function(){function t(){}return t.read=function(t,i){var u=t.json,s=new 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r=s.createTexture(n.name);if(void 0!==n.bufferView){var i=u.bufferViews[n.bufferView],e=t.json.buffers[i.buffer],o=i.byteOffset\|\|0,h=(e.uri?t.resources[e.uri]:t.resources["yt"]).slice(o,o+i.byteLength);r.setImage(h)}else void 0!==n.uri&&(r.setImage(t.resources[n.uri]),0!==n.uri.indexOf("__")&&r.setURI(n.uri));if(void 0!==n.mimeType)r.setMimeType(n.mimeType);else if(n.uri){var f=T.extension(n.uri);r.setMimeType("png"===f?"image/png":"image/jpeg")}return r}),o.materials=(u.materials\|\|[]).map(function(n){var r=s.createMaterial(n.name);void 0!==n.alphaMode&&r.setAlphaMode(n.alphaMode),void 0!==n.alphaCutoff&&r.setAlphaCutoff(n.alphaCutoff),void 0!==n.doubleSided&&r.setDoubleSided(n.doubleSided);var i=n.pbrMetallicRoughness\|\|{};if(void 0!==i.baseColorFactor&&r.setBaseColorFactor(i.baseColorFactor),void 0!==n.emissiveFactor&&r.setEmissiveFactor(n.emissiveFactor),void 0!==i.metallicFactor&&r.setMetallicFactor(i.metallicFactor),void 0!==i.roughnessFactor&&r.setRoughnessFactor(i.roughnessFactor),void 0!==i.baseColorTexture){var u=i.baseColorTexture;r.setBaseColorTexture(o.textures[h[u.index].source]),Q(r.getBaseColorTextureInfo(),u),W(r.getBaseColorTextureSampler(),u,t)}if(void 0!==n.emissiveTexture){var e=n.emissiveTexture;r.setEmissiveTexture(o.textures[h[e.index].source]),Q(r.getEmissiveTextureInfo(),e),W(r.getEmissiveTextureSampler(),e,t)}if(void 0!==n.normalTexture){var f=n.normalTexture;r.setNormalTexture(o.textures[h[f.index].source]),Q(r.getNormalTextureInfo(),f),W(r.getNormalTextureSampler(),f,t),void 0!==n.normalTexture.scale&&r.setNormalScale(n.normalTexture.scale)}if(void 0!==n.occlusionTexture){var c=n.occlusionTexture;r.setOcclusionTexture(o.textures[h[c.index].source]),Q(r.getOcclusionTextureInfo(),c),W(r.getOcclusionTextureSampler(),c,t),void 0!==n.occlusionTexture.strength&&r.setOcclusionStrength(n.occlusionTexture.strength)}if(void 0!==i.metallicRoughnessTexture){var a=i.metallicRoughnessTexture;r.setMetallicRoughnessTexture(o.textures[h[a.index].source]),Q(r.getMetallicRoughnessTextureInfo(),a),W(r.getMetallicRoughnessTextureSampler(),a,t)}return r}),o.meshes=(u.meshes\|\|[]).map(function(t){var n=s.createMesh(t.name);return void 0!==t.weights&&n.setWeights(t.weights),t.primitives.forEach(function(r){var i=s.createPrimitive();void 0!==r.material&&i.setMaterial(o.materials[r.material]),void 0!==r.mode&&i.setMode(r.mode);for(var u=0,e=Object.entries(r.attributes\|\|{});u<e.length;u++){var h=e[u];i.setAttribute(h[0],o.accessors[h[1]])}void 0!==r.indices&&i.setIndices(o.accessors[r.indices]);var f=t.extras&&t.extras.targetNames\|\|[];(r.targets\|\|[]).forEach(function(t,n){for(var r=f[n]\|\|n.toString(),u=s.createPrimitiveTarget(r),e=0,h=Object.entries(t);e<h.length;e++){var c=h[e];u.setAttribute(c[0],o.accessors[c[1]])}i.addTarget(u)}),n.addPrimitive(i)}),n}),o.cameras=(u.cameras\|\|[]).map(function(t){var n=s.createCamera(t.name).setType(t.type);return"perspective"===t.type?n.setZNear(t.perspective.znear).setZFar(t.perspective.zfar).setYFov(t.perspective.yfov).setAspectRatio(t.perspective.aspectRatio):n.setZNear(t.orthographic.znear).setZFar(t.orthographic.zfar).setXMag(t.orthographic.xmag).setYMag(t.orthographic.ymag),n});var f=u.nodes\|\|[];o.nodes=f.map(function(t){var r=s.createNode(t.name);return void 0!==t.translation&&r.setTranslation(t.translation),void 0!==t.rotation&&r.setRotation(t.rotation),void 0!==t.scale&&r.setScale(t.scale),void 0!==t.matrix&&(r.setTranslation(n.getTranslation([],t.matrix)),r.setRotation(n.getRotation([],t.matrix)),r.setScale(n.getScaling([],t.matrix))),void 0!==t.weights&&r.setWeights(t.weights),r}),o.skins=(u.skins\|\|[]).map(function(t){var n=s.createSkin(t.name);void 0!==t.inverseBindMatrices&&n.setInverseBindMatrices(o.accessors[t.inverseBindMatrices]),void 0!==t.skeleton&&n.setSkeleton(o.nodes[t.skeleton]);for(var r,i=e(t.joints);!(r=i()).done;)n.addJoint(o.nodes[r.value]);return n}),f.map(function(t,n){var r=o.nodes[n];(t.children\|\|[]).forEach(function(t){return r.addChild(o.nodes[t])}),void 0!==t.mesh&&r.setMesh(o.meshes[t.mesh]),void 0!==t.camera&&r.setCamera(o.cameras[t.camera]),void 0!==t.skin&&r.setSkin(o.skins[t.skin])}),o.animations=(u.animations\|\|[]).map(function(t){var n=s.createAnimation(t.name),r=(t.samplers\|\|[]).map(function(t){var r=s.createAnimationSampler().setInput(o.accessors[t.input]).setOutput(o.accessors[t.output]).setInterpolation(t.interpolation\|\|"LINEAR");return n.addSampler(r),r});return(t.channels\|\|[]).forEach(function(t){var i=s.createAnimationChannel().setSampler(r[t.sampler]).setTargetNode(o.nodes[t.target.node]).setTargetPath(t.target.path);n.addChannel(i)}),n}),o.scenes=(u.scenes\|\|[]).map(function(t){var n=s.createScene(t.name);return(t.nodes\|\|[]).map(function(t){return o.nodes[t]}).forEach(function(t){return n.addNode(t)}),n});for(var c,a=u.extensionsUsed\|\|[],v=u.extensionsRequired\|\|[],d=e(i.extensions);!(c=d()).done;){var w=c.value;a.includes(w.EXTENSION_NAME)&&s.createExtension(w).setRequired(v.includes(w.EXTENSION_NAME)).read(o)}return s},t}();function Q(t,n){void 0!==n.texCoord&&t.setTexCoord(n.texCoord)}function W(t,n,r){var i=r.json.textures[n.index];if(void 0!==i.sampler){var u=r.json.samplers[i.sampler];void 0!==u.magFilter&&t.setMagFilter(u.magFilter),void 0!==u.minFilter&&t.setMinFilter(u.minFilter),void 0!==u.wrapS&&t.setWrapS(u.wrapS),void 0!==u.wrapT&&t.setWrapT(u.wrapT)}}function X(t,n){var r=n.json.bufferViews[t.bufferView],i=n.json.buffers[r.buffer],u=i.uri?n.resources[i.uri]:n.resources["yt"],e=H[t.componentType],s=l.getElementSize(t.type);if(void 0!==r.byteStride&&r.byteStride!==se.BYTES_PER_ELEMENT)return function(t,n){for(var r=n.json.bufferViews[t.bufferView],i=n.json.buffers[r.buffer],u=i.uri?n.resources[i.uri]:n.resources["yt"],e=H[t.componentType],s=l.getElementSize(t.type),o=e.BYTES_PER_ELEMENT,h=t.byteOffset\|\|0,f=new e(t.counts),c=new DataView(u,r.byteOffset,r.byteLength),a=r.byteStride,v=0;v<t.count;v++)for(var d=0;d<s;d++){var w=h+va+do,p=void 0;switch(t.componentType){case 5126:p=c.getFloat32(w,!0);break;case 5125:p=c.getUint32(w,!0);break;case 5123:p=c.getUint16(w,!0);break;case 5121:p=c.getUint8(w);break;case 5122:p=c.getInt16(w,!0);break;case 5120:p=c.getInt8(w);break;default:throw new Error('Unexpected componentType "'+t.componentType+'".')}f[vs+d]=p}return f}(t,n);var o=(r.byteOffset\|\|0)+(t.byteOffset\|\|0);switch(t.componentType){case 5126:return new Float32Array(u,o,t.counts);case 5125:return new Uint32Array(u,o,t.counts);case 5123:return new Uint16Array(u,o,t.counts);case 5121:return new Uint8Array(u,o,t.counts);case 5122:return new Int16Array(u,o,t.counts);case 5120:return new Int8Array(u,o,t.counts);default:throw new Error('Unexpected componentType "'+t.componentType+'".')}}var Z=function(){function t(t){this.nativeDocument=t,this.accessorIndexMap=new Map,this.cameraIndexMap=new Map,this.skinIndexMap=new Map,this.materialIndexMap=new Map,this.meshIndexMap=new Map,this.nodeIndexMap=new Map,this.imageIndexMap=new Map,this.textureDefIndexMap=new Map,this.samplerDefIndexMap=new Map,this.imageData=[]}var n=t.prototype;return n.createTextureInfoDef=function(t,n,r){var i={magFilter:r.getMagFilter()\|\|void 0,minFilter:r.getMinFilter()\|\|void 0,wrapS:r.getWrapS(),wrapT:r.getWrapT()},u=JSON.stringify(i);this.samplerDefIndexMap.has(u)\|\|(this.samplerDefIndexMap.set(u,this.nativeDocument.json.samplers.length),this.nativeDocument.json.samplers.push(i));var e={source:this.imageIndexMap.get(t),sampler:this.samplerDefIndexMap.get(u)},s=JSON.stringify(e);return this.textureDefIndexMap.has(s)\|\|(this.textureDefIndexMap.set(s,this.nativeDocument.json.textures.length),this.nativeDocument.json.textures.push(e)),{index:this.textureDefIndexMap.get(s),texCoord:n.getTexCoord()}},n.createPropertyDef=function(t){var n={};return t.getName()&&(n.name=t.getName()),Object.keys(t.getExtras()).length>0&&(n.extras=t.getExtras()),n},n.createAccessorDef=function(t){var n=this.createPropertyDef(t);return n.type=t.getType(),n.componentType=t.getComponentType(),n.count=t.getCount(),t.getMax(n.max=[]),t.getMin(n.min=[]),n.normalized=t.getNormalized(),n},t}(),tt=function(){function t(){}return t.write=function(t,n){var r=t.getRoot(),i={json:{asset:r.getAsset()},resources:{}},u=i.json,s=t.getLogger(),o=r.listBuffers().length,h=r.listTextures().length,f=new nt(o>1,n.basename),c=new nt(h>1,n.basename),a=new Z(i);function v(t,n,r,i){for(var s,o=[],h=0,f=e(t);!(s=f()).done;){var c=s.value,v=a.createAccessorDef(c);v.bufferView=u.bufferViews.length;var l=E.pad(c.getArray().buffer);v.byteOffset=h,h+=l.byteLength,o.push(l),a.accessorIndexMap.set(c,u.accessors.length),u.accessors.push(v)}var d={buffer:n,byteOffset:r,byteLength:E.concat(o).byteLength};return i&&(d.target=i),u.bufferViews.push(d),{buffers:o,byteLength:h}}function d(t,n,r){for(var i,s=t[0].getCount(),o=0,h=e(t);!(i=h()).done;){var f=i.value,c=a.createAccessorDef(f);c.bufferView=u.bufferViews.length,c.byteOffset=o;var v=f.getElementSize(),l=f.getComponentSize();o+=E.padNumber(vl),a.accessorIndexMap.set(f,u.accessors.length),u.accessors.push(c)}for(var d=so,w=new ArrayBuffer(d),p=new DataView(w),A=0;A<s;A++)for(var y,b=0,m=e(t);!(y=m()).done;){for(var T=y.value,g=T.getElementSize(),M=T.getComponentSize(),x=T.getComponentType(),S=T.getArray(),R=0;R<g;R++){var N=Ao+b+RM,U=S[Ag+R];switch(x){case 5126:p.setFloat32(N,U,!0);break;case 5120:p.setInt8(N,U);break;case 5122:p.setInt16(N,U,!0);break;case 5121:p.setUint8(N,U);break;case 5123:p.setUint16(N,U,!0);break;case 5125:p.setUint32(N,U,!0);break;default:throw new Error("Unexpected component type: "+x)}}b+=E.padNumber(gM)}return u.bufferViews.push({buffer:n,byteOffset:r,byteLength:d,byteStride:o,target:34962}),{byteLength:d,buffers:[w]}}for(var w,p=new Map,A=e(t.getGraph().getLinks());!(w=A()).done;){var y=w.value;if(y.getParent()!==r){var b=y.getChild();if(b instanceof l){var m=p.get(b)\|\|[];m.push(y),p.set(b,m)}}}return u.accessors=[],u.bufferViews=[],u.samplers=[],u.textures=[],u.images=r.listTextures().map(function(t,r){var e=a.createPropertyDef(t);if(t.getMimeType()&&(e.mimeType=t.getMimeType()),n.isGLB)a.imageData.push(t.getImage()),e.bufferView=u.bufferViews.length,u.bufferViews.push({buffer:0,byteOffset:-1,byteLength:t.getImage().byteLength});else{var s="image/png"===t.getMimeType()?"png":"jpeg";e.uri=c.createURI(t,s),i.resources[e.uri]=t.getImage()}return a.imageIndexMap.set(t,r),e}),u.buffers=[],r.listBuffers().forEach(function(t){for(var r,o=a.createPropertyDef(t),h=new Map,c=new Set,w=new Set,A=e(t.listParents().filter(function(t){return!(t instanceof F)}));!(r=A()).done;){var y=r.value;if(!(y instanceof l))throw new Error("Unimplemented buffer reference: "+y);for(var b,m=!1,T=!1,g=!1,M=p.get(y)\|\|[],x=e(M);!(b=x()).done;){var S=b.value;S instanceof C?m=!0:S instanceof L?T=!0:g=!0}if(m\|\|T\|\|g\|\|(g=!0),!m\|\|T\|\|g)if(!T\|\|m\|\|g){if(!g\|\|m\|\|T)throw new Error("Attribute or index accessors must be used only for that purpose.");w.add(y)}else c.add(y);else{var R=M[0].getParent(),N=h.get(R)\|\|new Set;N.add(y),h.set(R,N)}}var U,I=[],_=u.buffers.length,O=0;if(c.size){var j=v(Array.from(c),_,O,34963);O+=j.byteLength,I.push.apply(I,j.buffers)}for(var k=0,B=Array.from(h.values());k<B.length;k++){var P=B[k];if(P.size){var V=d(Array.from(P),_,O);O+=V.byteLength,I.push.apply(I,V.buffers)}}if(w.size){var D=v(Array.from(w),_,O);O+=D.byteLength,I.push.apply(I,D.buffers)}if(a.imageData.length)for(var G=0;G<a.imageData.length;G++)u.bufferViews[u.images[G].bufferView].byteOffset=O,O+=a.imageData[G].byteLength,I.push(a.imageData[G]);O?(n.isGLB?U="__glb.bin":(U=f.createURI(t,"bin"),o.uri=U),o.byteLength=O,i.resources[U]=E.concat(I),u.buffers.push(o)):s.warn('@gltf-transform/core: Skipping empty buffer, "'+t.getName()+'".')}),u.materials=r.listMaterials().map(function(t,n){var r=a.createPropertyDef(t);if(r.alphaMode=t.getAlphaMode(),"MASK"===t.getAlphaMode()&&(r.alphaCutoff=t.getAlphaCutoff()),r.doubleSided=t.getDoubleSided(),r.pbrMetallicRoughness={},r.pbrMetallicRoughness.baseColorFactor=t.getBaseColorFactor(),r.emissiveFactor=t.getEmissiveFactor(),r.pbrMetallicRoughness.roughnessFactor=t.getRoughnessFactor(),r.pbrMetallicRoughness.metallicFactor=t.getMetallicFactor(),t.getBaseColorTexture()){var i=t.getBaseColorTexture(),u=t.getBaseColorTextureInfo(),e=t.getBaseColorTextureSampler();r.pbrMetallicRoughness.baseColorTexture=a.createTextureInfoDef(i,u,e)}if(t.getEmissiveTexture()){var s=t.getEmissiveTexture(),o=t.getEmissiveTextureInfo(),h=t.getEmissiveTextureSampler();r.emissiveTexture=a.createTextureInfoDef(s,o,h)}if(t.getNormalTexture()){var f=t.getNormalTexture(),c=t.getNormalTextureInfo(),v=t.getNormalTextureSampler(),l=a.createTextureInfoDef(f,c,v);1!==t.getNormalScale()&&(l.scale=t.getNormalScale()),r.normalTexture=l}if(t.getOcclusionTexture()){var d=t.getOcclusionTexture(),w=t.getOcclusionTextureInfo(),p=t.getOcclusionTextureSampler(),A=a.createTextureInfoDef(d,w,p);1!==t.getOcclusionStrength()&&(A.strength=t.getOcclusionStrength()),r.occlusionTexture=A}if(t.getMetallicRoughnessTexture()){var y=t.getMetallicRoughnessTexture(),b=t.getMetallicRoughnessTextureInfo(),m=t.getMetallicRoughnessTextureSampler();r.pbrMetallicRoughness.metallicRoughnessTexture=a.createTextureInfoDef(y,b,m)}return a.materialIndexMap.set(t,n),r}),u.meshes=r.listMeshes().map(function(t,n){var r,i=a.createPropertyDef(t);return i.primitives=t.listPrimitives().map(function(t){var n={attributes:{}};n.material=a.materialIndexMap.get(t.getMaterial()),n.mode=t.getMode(),t.getIndices()&&(n.indices=a.accessorIndexMap.get(t.getIndices()));for(var i,u=e(t.listSemantics());!(i=u()).done;){var s=i.value;n.attributes[s]=a.accessorIndexMap.get(t.getAttribute(s))}for(var o,h=e(t.listTargets());!(o=h()).done;){for(var f,c=o.value,v={},l=e(c.listSemantics());!(f=l()).done;){var d=f.value;v[d]=a.accessorIndexMap.get(c.getAttribute(d))}n.targets=n.targets\|\|[],n.targets.push(v)}return t.listTargets().length&&!r&&(r=t.listTargets().map(function(t){return t.getName()})),n}),t.getWeights().length&&(i.weights=t.getWeights()),r&&(i.extras=i.extras\|\|{},i.extras.targetNames=r),a.meshIndexMap.set(t,n),i}),u.cameras=r.listCameras().map(function(t,n){var r=a.createPropertyDef(t);return r.type=t.getType(),"perspective"===r.type?r.perspective={znear:t.getZNear(),zfar:t.getZFar(),yfov:t.getYFov(),aspectRatio:t.getAspectRatio()}:r.orthographic={znear:t.getZNear(),zfar:t.getZFar(),xmag:t.getXMag(),ymag:t.getYMag()},a.cameraIndexMap.set(t,n),r}),u.nodes=r.listNodes().map(function(t,n){var r=a.createPropertyDef(t);return r.translation=t.getTranslation(),r.rotation=t.getRotation(),r.scale=t.getScale(),t.getWeights().length&&(r.weights=t.getWeights()),a.nodeIndexMap.set(t,n),r}),u.skins=r.listSkins().map(function(t,n){var r=a.createPropertyDef(t);return t.getInverseBindMatrices()&&(r.inverseBindMatrices=a.accessorIndexMap.get(t.getInverseBindMatrices())),t.getSkeleton()&&(r.skeleton=a.nodeIndexMap.get(t.getSkeleton())),r.joints=t.listJoints().map(function(t){return a.nodeIndexMap.get(t)}),a.skinIndexMap.set(t,n),r}),r.listNodes().forEach(function(t,n){var r=u.nodes[n];t.getMesh()&&(r.mesh=a.meshIndexMap.get(t.getMesh())),t.getCamera()&&(r.camera=a.cameraIndexMap.get(t.getCamera())),t.getSkin()&&(r.skin=a.skinIndexMap.get(t.getSkin())),t.listChildren().length>0&&(r.children=t.listChildren().map(function(t){return a.nodeIndexMap.get(t)}))}),u.animations=r.listAnimations().map(function(t){var n=a.createPropertyDef(t),r=new Map;return n.samplers=t.listSamplers().map(function(t,n){var i=a.createPropertyDef(t);return i.input=a.accessorIndexMap.get(t.getInput()),i.output=a.accessorIndexMap.get(t.getOutput()),i.interpolation=t.getInterpolation(),r.set(t,n),i}),n.channels=t.listChannels().map(function(t){var n=a.createPropertyDef(t);return n.sampler=r.get(t.getSampler()),n.target={node:a.nodeIndexMap.get(t.getTargetNode()),path:t.getTargetPath()},n}),n}),u.scenes=r.listScenes().map(function(t){var n=a.createPropertyDef(t);return n.nodes=t.listNodes().map(function(t){return a.nodeIndexMap.get(t)}),n}),u.extensionsUsed=r.listExtensionsUsed().map(function(t){return t.extensionName}),u.extensionsRequired=r.listExtensionsRequired().map(function(t){return t.extensionName}),r.listExtensionsUsed().forEach(function(t){return t.write(a)}),function(t){var n=[];for(var r in t){var i=t[r];Array.isArray(i)&&0===i.length?n.push(r):null!==i&&""!==i\|\|n.push(i)}for(var u=0,e=n;u<e.length;u++)delete t[e[u]]}(u),i},t}(),nt=function(){function t(t,n){this.multiple=t,this.basename=n,this.counter=1}return t.prototype.createURI=function(t,n){return t.getURI()?t.getURI():this.multiple?this.basename+"_"+this.counter+++"."+n:this.basename+"."+n},t}(),rt=function(){function t(){this.it=[]}var n=t.prototype;return n.registerExtensions=function(t){var n;return(n=this.it).push.apply(n,t),this},n.createDocument=function(t){return K.read(t,{extensions:this.it})},n.createNativeDocument=function(t,n){if(n.isGLB&&1!==t.getRoot().listBuffers().length)throw new Error("GLB must have exactly 1 buffer.");return tt.write(t,n)},n.unpackGLB=function(t){var n,r=new Uint32Array(t,0,3);if(1179937895!==r[0])throw new Error("Invalid glTF asset.");if(2!==r[1])throw new Error('Unsupported glTF binary version, "'+r[1]+'".');var i=new Uint32Array(t,12,2),u=i[0],e=new Uint32Array(t,20+u,2);if(1313821514!==i[1]\|\|5130562!==e[1])throw new Error("Unexpected GLB layout.");var s=E.decodeText(t.slice(20,20+u)),o=JSON.parse(s),h=20+u+8,f=t.slice(h,h+e[0]);return this.createDocument({json:o,resources:(n={},n["yt"]=f,n)})},n.packGLB=function(t){var n=this.createNativeDocument(t,{basename:"",isGLB:!0}),r=n.resources,i=JSON.stringify(n.json),u=E.pad(E.encodeText(i),32),e=new Uint32Array([u.byteLength,1313821514]).buffer,s=E.concat([e,u]),o=E.pad(Object.values(r)[0],0),h=new Uint32Array([o.byteLength,5130562]).buffer,f=E.concat([h,o]),c=new Uint32Array([1179937895,2,12+s.byteLength+f.byteLength]).buffer;return E.concat([c,s,f])},t}(),it=function(t){function n(n,r){var i;return(i=t.call(this)\|\|this).fs=n,i.path=r,i}i(n,t);var r=n.prototype;return r.read=function(t){return t.match(/\.glb$/)?this.readGLB(t):this.readGLTF(t)},r.write=function(t,n){t.match(/\.glb$/)?this.writeGLB(t,n):this.writeGLTF(t,n)},r.readGLB=function(t){var n=this.fs.readFileSync(t),r=E.trim(n);return this.unpackGLB(r)},r.readGLTF=function(t){var n=this,r=this.path.dirname(t),i={json:JSON.parse(this.fs.readFileSync(t,"utf8")),resources:{}};return[].concat(i.json.images\|\|[],i.json.buffers\|\|[]).forEach(function(t){if(t.uri&&!t.uri.match(/data:/)){var u=n.path.resolve(r,t.uri);i.resources[t.uri]=E.trim(n.fs.readFileSync(u))}else{var e="__"+U()+"."+T.extension(t.uri);i.resources[e]=E.createBufferFromDataURI(t.uri),t.uri=e}}),K.read(i,{extensions:this.it})},r.writeGLTF=function(t,n){var r={basename:T.basename(t),isGLB:!1},i=tt.write(n,r),u=i.json,e=i.resources,s=this.fs,o=this.path,h=o.dirname(t);s.writeFileSync(t,JSON.stringify(u,null,2)),Object.keys(e).forEach(function(t){var n=Buffer.from(e[t]);s.writeFileSync(o.join(h,t),n)})},r.writeGLB=function(t,n){var r=Buffer.from(this.packGLB(n));this.fs.writeFileSync(t,r)},n}(rt),ut=function(t){function n(n){var r;return(r=t.call(this)\|\|this).fetchConfig=n,r}i(n,t);var r=n.prototype;return r.read=function(t){return t.match(/\.glb$/)?this.readGLB(t):this.readGLTF(t)},r.readGLTF=function(t){var n=this,r={json:{},resources:{}};return fetch(t,this.fetchConfig).then(function(t){return t.json()}).then(function(t){r.json=t;var i=[].concat(t.images,t.buffers).map(function(t){if(t.uri)return fetch(t.uri,n.fetchConfig).then(function(t){return t.arrayBuffer()}).then(function(n){r.resources[t.uri]=n})});return Promise.all(i).then(function(){return n.createDocument(r)})})},r.readGLB=function(t){var n=this;return fetch(t,this.fetchConfig).then(function(t){return t.arrayBuffer()}).then(function(t){return n.unpackGLB(t)})},n}(rt);t.Accessor=l,t.Animation=w,t.AnimationChannel=p,t.AnimationSampler=A,t.Buffer=y,t.BufferUtils=E,t.Camera=b,t.Document=$,t.Extension=Y,t.ExtensionProperty=m,t.FileUtils=T,t.Graph=h,t.ImageUtils=g,t.Logger=x,t.Material=B,t.Mesh=P,t.Node=G,t.NodeIO=it,t.Primitive=V,t.PrimitiveTarget=D,t.Property=a,t.ReaderContext=q,t.Root=F,t.Scene=J,t.Skin=z,t.Texture=I,t.TextureInfo=_,t.TextureSampler=O,t.WebIO=ut,t.WriterContext=Z,t.uuid=U});
		//# sourceMappingURL=core.umd.js.map

dist/document.d.ts

		@@ -0,1 +1,2 @@
		import { Extension, ExtensionConstructor } from './extension';
		import { Accessor, Animation, AnimationChannel, AnimationSampler, Buffer, Camera, Material, Mesh, Node, Primitive, PrimitiveTarget, PropertyGraph, Root, Scene, Skin, Texture } from './properties/index';
		@@ -99,2 +100,10 @@ import { Logger } from './utils';
		/**********************************************************************************************
		* Extension factory method.
		*/
		/**
		* Creates a new {@link Extension}, for the extension type of the given constructor. If the
		* extension is already enabled for this Document, the previous Extension reference is reused.
		*/
		createExtension(ctor: ExtensionConstructor): Extension;
		/**********************************************************************************************
		* Property factory methods.
		@@ -101,0 +110,0 @@ */

dist/io/index.d.ts

		export { NodeIO, WebIO } from './io';
		export { NativeDocument as Asset } from '../native-document';
		export { ReaderOptions } from './reader';
		export { WriterOptions } from './writer';
		export { ReaderContext } from './reader-context';
		export { WriterContext } from './writer-context';

dist/io/io.d.ts

		import { Document } from '../document';
		import { Extension } from '../extension';
		import { NativeDocument } from '../native-document';
		@@ -14,2 +15,5 @@ import { WriterOptions } from './writer';
		declare abstract class PlatformIO {
		protected _extensions: typeof Extension[];
		/** Registers extensions, enabling I/O class to read and write glTF assets requiring them. */
		registerExtensions(extensions: typeof Extension[]): this;
		/** Converts glTF-formatted JSON and a resource map to a {@link Document}. */
		@@ -16,0 +20,0 @@ createDocument(nativeDoc: NativeDocument): Document;

dist/io/reader.d.ts

		import { Document } from '../document';
		import { Extension } from '../extension';
		import { NativeDocument } from '../native-document';
		export interface ReaderOptions {
		extensions: (typeof Extension)[];
		}
		/** @hidden */
		export declare class GLTFReader {
		static read(nativeDoc: NativeDocument): Document;
		static read(nativeDoc: NativeDocument, options: ReaderOptions): Document;
		}

dist/properties/accessor.d.ts

		import { TypedArray } from '../constants';
		import { Buffer } from './buffer';
		import { Property } from './property';
		import { ExtensibleProperty } from './extensible-property';
		/**
		@@ -79,3 +79,3 @@ * # Accessor
		*/
		export declare class Accessor extends Property {
		export declare class Accessor extends ExtensibleProperty {
		readonly propertyType = "Accessor";
		@@ -82,0 +82,0 @@ /** Raw data of the accessor. */

dist/properties/animation.d.ts

		import { Accessor } from './accessor';
		import { ExtensibleProperty } from './extensible-property';
		import { Node } from './node';
		@@ -40,3 +41,3 @@ import { Property } from './property';
		*/
		export declare class Animation extends Property {
		export declare class Animation extends ExtensibleProperty {
		readonly propertyType = "Animation";
		@@ -43,0 +44,0 @@ private channels;

dist/properties/buffer.d.ts

		@@ -1,2 +0,2 @@
		import { Property } from './property';
		import { ExtensibleProperty } from './extensible-property';
		/**
		@@ -57,3 +57,3 @@ * # Buffer
		*/
		export declare class Buffer extends Property {
		export declare class Buffer extends ExtensibleProperty {
		readonly propertyType = "Buffer";
		@@ -60,0 +60,0 @@ /** URI (or filename) of the buffer. */

dist/properties/camera.d.ts

		@@ -1,2 +0,2 @@
		import { Property } from './property';
		import { ExtensibleProperty } from './extensible-property';
		/**
		@@ -30,3 +30,3 @@ * # Camera
		*/
		export declare class Camera extends Property {
		export declare class Camera extends ExtensibleProperty {
		readonly propertyType = "Camera";
		@@ -33,0 +33,0 @@ private _type;

dist/properties/index.d.ts

		@@ -5,2 +5,3 @@ export * from './accessor';
		export * from './camera';
		export * from './extension-property';
		export * from './property';
		@@ -7,0 +8,0 @@ export * from './property-graph';

dist/properties/material.d.ts

		import { vec3, vec4 } from '../constants';
		import { Property } from './property';
		import { ExtensibleProperty } from './extensible-property';
		import { Texture, TextureInfo, TextureSampler } from './texture';
		@@ -36,3 +36,3 @@ /**
		*/
		export declare class Material extends Property {
		export declare class Material extends ExtensibleProperty {
		readonly propertyType = "Material";
		@@ -39,0 +39,0 @@ /** Mode of the material's alpha channels. (`OPAQUE`, `BLEND`, or `MASK`) */

dist/properties/mesh.d.ts

		import { Accessor } from './accessor';
		import { ExtensibleProperty } from './extensible-property';
		import { Material } from './material';
		@@ -37,3 +38,3 @@ import { Property } from './property';
		*/
		export declare class Mesh extends Property {
		export declare class Mesh extends ExtensibleProperty {
		readonly propertyType = "Mesh";
		@@ -40,0 +41,0 @@ private _weights;

dist/properties/node.d.ts

		import { vec3, vec4 } from '../constants';
		import { Camera } from './camera';
		import { ExtensibleProperty } from './extensible-property';
		import { Mesh } from './mesh';
		import { Property } from './property';
		import { Skin } from './skin';
		@@ -34,3 +34,3 @@ /**
		*/
		export declare class Node extends Property {
		export declare class Node extends ExtensibleProperty {
		readonly propertyType = "Node";
		@@ -37,0 +37,0 @@ private _translation;

dist/properties/property.d.ts

		@@ -40,9 +40,11 @@ import { GraphNode } from '../graph';
		/** Property type. */
		readonly propertyType: string;
		abstract readonly propertyType: string;
		protected readonly _graph: PropertyGraph;
		protected _name: string;
		protected _extras: object;
		protected _extensions: object;
		/** @hidden */
		constructor(graph: PropertyGraph, name?: string);
		/**********************************************************************************************
		* Name.
		*/
		/**
		@@ -60,2 +62,5 @@ * Returns the name of this property. While names are not required to be unique, this is
		setName(name: string): this;
		/**********************************************************************************************
		* Extras.
		*/
		/** @hidden */
		@@ -65,6 +70,5 @@ getExtras(): object;
		setExtras(extras: object): this;
		/** @hidden */
		getExtensions(): object;
		/** @hidden */
		setExtensions(extensions: object): this;
		/**********************************************************************************************
		* Graph state.
		*/
		/**
		@@ -71,0 +75,0 @@ * Makes a copy of this property, referencing the same resources (not copies) as the original.

dist/properties/root.d.ts

		@@ -0,1 +1,2 @@
		import { Extension } from '../extension';
		import { Accessor } from './accessor';
		@@ -47,2 +48,3 @@ import { Animation } from './animation';
		private readonly _asset;
		private readonly _extensions;
		private scenes;
		@@ -66,2 +68,13 @@ private nodes;
		/**********************************************************************************************
		* Extensions.
		*/
		/** Lists all {@link Extension} properties enabled for this root. */
		listExtensionsUsed(): Extension[];
		/** Lists all {@link Extension} properties enabled and required for this root. */
		listExtensionsRequired(): Extension[];
		/** @hidden */
		_enableExtension(extension: Extension): this;
		/** @hidden */
		_disableExtension(extension: Extension): this;
		/**********************************************************************************************
		* Scenes.
		@@ -73,8 +86,3 @@ */
		*/
		addScene(scene: Scene): this;
		/**
		* Removes a {@link Scene} from the root list.
		* @hidden
		*/
		removeScene(scene: Scene): this;
		_addScene(scene: Scene): this;
		/** Lists all {@link Scene} properties associated with this root. */
		@@ -89,8 +97,3 @@ listScenes(): Scene[];
		*/
		addNode(node: Node): this;
		/**
		* Removes a {@link Node} from the root list.
		* @hidden
		*/
		removeNode(node: Node): this;
		_addNode(node: Node): this;
		/** Lists all {@link Node} properties associated with this root. */
		@@ -105,8 +108,3 @@ listNodes(): Node[];
		*/
		addCamera(camera: Camera): this;
		/**
		* Removes a {@link Camera} from the root list.
		* @hidden
		*/
		removeCamera(camera: Camera): this;
		_addCamera(camera: Camera): this;
		/** Lists all {@link Camera} properties associated with this root. */
		@@ -121,8 +119,3 @@ listCameras(): Camera[];
		*/
		addSkin(skin: Skin): this;
		/**
		* Removes a {@link Skin} from the root list.
		* @hidden
		*/
		removeSkin(skin: Skin): this;
		_addSkin(skin: Skin): this;
		/** Lists all {@link Skin} properties associated with this root. */
		@@ -137,8 +130,3 @@ listSkins(): Skin[];
		*/
		addMesh(mesh: Mesh): this;
		/**
		* Removes a {@link Mesh} from the root list.
		* @hidden
		*/
		removeMesh(mesh: Mesh): this;
		_addMesh(mesh: Mesh): this;
		/** Lists all {@link Mesh} properties associated with this root. */
		@@ -153,8 +141,3 @@ listMeshes(): Mesh[];
		*/
		addMaterial(material: Material): this;
		/**
		* Removes a {@link Material} from the root list.
		* @hidden
		*/
		removeMaterial(material: Material): this;
		_addMaterial(material: Material): this;
		/** Lists all {@link Material} properties associated with this root. */
		@@ -169,8 +152,3 @@ listMaterials(): Material[];
		*/
		addTexture(texture: Texture): this;
		/**
		* Removes a {@link Texture} from the root list.
		* @hidden
		*/
		removeTexture(texture: Texture): this;
		_addTexture(texture: Texture): this;
		/** Lists all {@link Texture} properties associated with this root. */
		@@ -185,8 +163,3 @@ listTextures(): Texture[];
		*/
		addAnimation(animation: Animation): this;
		/**
		* Removes a {@link Animation} from the root list.
		* @hidden
		*/
		removeAnimation(animation: Animation): this;
		_addAnimation(animation: Animation): this;
		/** Lists all {@link Animation} properties associated with this root. */
		@@ -201,8 +174,3 @@ listAnimations(): Animation[];
		*/
		addAccessor(accessor: Accessor): this;
		/**
		* Removes an {@link Accessor} from the root list.
		* @hidden
		*/
		removeAccessor(accessor: Accessor): this;
		_addAccessor(accessor: Accessor): this;
		/** Lists all {@link Accessor} properties associated with this root. */
		@@ -217,10 +185,5 @@ listAccessors(): Accessor[];
		*/
		addBuffer(buffer: Buffer): this;
		/**
		* Removes a {@link Buffer} from the root list.
		* @hidden
		*/
		removeBuffer(buffer: Buffer): this;
		_addBuffer(buffer: Buffer): this;
		/** Lists all {@link Buffer} properties associated with this root. */
		listBuffers(): Buffer[];
		}

dist/properties/scene.d.ts

		@@ -0,3 +1,3 @@
		import { ExtensibleProperty } from './extensible-property';
		import { Node } from './node';
		import { Property } from './property';
		/**
		@@ -19,3 +19,3 @@ * # Scene
		*/
		export declare class Scene extends Property {
		export declare class Scene extends ExtensibleProperty {
		readonly propertyType = "Scene";
		@@ -22,0 +22,0 @@ private nodes;

dist/properties/skin.d.ts

		import { Accessor } from './accessor';
		import { ExtensibleProperty } from './extensible-property';
		import { Node } from './node';
		import { Property } from './property';
		/**
		@@ -15,3 +15,3 @@ * # Skin
		*/
		export declare class Skin extends Property {
		export declare class Skin extends ExtensibleProperty {
		readonly propertyType = "Skin";
		@@ -18,0 +18,0 @@ private skeleton;

dist/properties/texture.d.ts

		import { vec2 } from '../constants';
		import { Property } from './property';
		import { ExtensibleProperty } from './extensible-property';
		/**
		@@ -24,3 +24,3 @@ * # Texture
		*/
		export declare class Texture extends Property {
		export declare class Texture extends ExtensibleProperty {
		readonly propertyType = "Texture";
		@@ -27,0 +27,0 @@ /** Raw image data for this texture. */

package.json

		{
		"name": "@gltf-transform/core",
		"version": "0.3.3",
		"version": "0.4.0-alpha.0",
		"repository": "github:donmccurdy/glTF-Transform",
		@@ -38,3 +38,3 @@ "description": "glTF 2.0 SDK for JavaScript, TypeScript, and Node.js",
		},
		"gitHead": "dc590cd720a6a40ace781edf1b68262b0c0ab674"
		"gitHead": "b06dc5b509890c0712850fca6b17a68df3749066"
		}

src/constants.ts

		@@ -74,8 +74,1 @@ // Injected at compile time, from $npm_package_version.
		export type TypedArray = Float32Array \| Uint32Array \| Uint16Array \| Uint8Array \| Int16Array \| Int8Array;

		/** @hidden */
		export class NotImplementedError extends Error {
		constructor () {
		super('@gltf-transform/core: Not implemented.');
		}
		}

src/core.ts

		export { Document, Transform } from './document';
		export { Accessor, Animation, AnimationChannel, AnimationSampler, Buffer, Camera, Property, Material, Mesh, Node, Primitive, PrimitiveTarget, Root, Scene, Skin, Texture, TextureInfo, TextureSampler } from './properties';
		export { Extension } from './extension';
		export { Accessor, Animation, AnimationChannel, AnimationSampler, Buffer, Camera, ExtensionProperty, Property, Material, Mesh, Node, Primitive, PrimitiveTarget, Root, Scene, Skin, Texture, TextureInfo, TextureSampler } from './properties';
		export { Graph } from './graph/';
		export { NodeIO, WebIO } from './io/';
		export { NodeIO, WebIO, ReaderContext, WriterContext } from './io/';
		export { BufferUtils, FileUtils, ImageUtils, Logger, uuid } from './utils/';
		@@ -13,3 +14,6 @@

		/** [[include:EXTENSIONS.md]] */
		namespace Extensions {};

		/** [[include:CONTRIBUTING.md]] */
		namespace Contributing {};

src/document.ts

		@@ -0,1 +1,2 @@
		import { Extension, ExtensionConstructor } from './extension';
		import { Accessor, Animation, AnimationChannel, AnimationSampler, Buffer, Camera, Material, Mesh, Node, Primitive, PrimitiveTarget, PropertyGraph, Root, Scene, Skin, Texture } from './properties/index';
		@@ -124,2 +125,16 @@ import { Logger } from './utils';
		/**********************************************************************************************
		* Extension factory method.
		*/

		/**
		* Creates a new {@link Extension}, for the extension type of the given constructor. If the
		* extension is already enabled for this Document, the previous Extension reference is reused.
		*/
		createExtension(ctor: ExtensionConstructor): Extension {
		const prevExtension = this.getRoot().listExtensionsUsed()
		.find((ext) => ext.extensionName === ctor.EXTENSION_NAME);
		return prevExtension \|\| new ctor(this);
		}

		/**********************************************************************************************
		* Property factory methods.
		@@ -131,3 +146,3 @@ */
		const scene = new Scene(this.graph, name);
		this.root.addScene(scene);
		this.root._addScene(scene);
		return scene;
		@@ -139,3 +154,3 @@ }
		const node = new Node(this.graph, name);
		this.root.addNode(node);
		this.root._addNode(node);
		return node;
		@@ -147,3 +162,3 @@ }
		const camera = new Camera(this.graph, name);
		this.root.addCamera(camera);
		this.root._addCamera(camera);
		return camera;
		@@ -155,3 +170,3 @@ }
		const skin = new Skin(this.graph, name);
		this.root.addSkin(skin);
		this.root._addSkin(skin);
		return skin;
		@@ -163,3 +178,3 @@ }
		const mesh = new Mesh(this.graph, name);
		this.root.addMesh(mesh);
		this.root._addMesh(mesh);
		return mesh;
		@@ -187,3 +202,3 @@ }
		const material = new Material(this.graph, name);
		this.root.addMaterial(material);
		this.root._addMaterial(material);
		return material;
		@@ -195,3 +210,3 @@ }
		const texture = new Texture(this.graph, name);
		this.root.addTexture(texture);
		this.root._addTexture(texture);
		return texture;
		@@ -203,3 +218,3 @@ }
		const animation = new Animation(this.graph, name);
		this.root.addAnimation(animation);
		this.root._addAnimation(animation);
		return animation;
		@@ -230,3 +245,3 @@ }
		const accessor = new Accessor(this.graph, name).setBuffer(buffer);
		this.root.addAccessor(accessor);
		this.root._addAccessor(accessor);
		return accessor;
		@@ -238,5 +253,5 @@ }
		const buffer = new Buffer(this.graph, name);
		this.root.addBuffer(buffer);
		this.root._addBuffer(buffer);
		return buffer;
		}
		}

src/io/index.ts

		export { NodeIO, WebIO } from './io';
		export { NativeDocument as Asset } from '../native-document';
		export { ReaderOptions } from './reader';
		export { WriterOptions } from './writer';
		export { ReaderContext } from './reader-context';
		export { WriterContext } from './writer-context';

src/io/io.ts

		import { GLB_BUFFER } from '../constants';
		import { Document } from '../document';
		import { Extension } from '../extension';
		import { NativeDocument } from '../native-document';
		@@ -18,5 +19,14 @@ import { BufferUtils, FileUtils, uuid } from '../utils/';
		abstract class PlatformIO {

		protected _extensions: typeof Extension[] = [];

		/** Registers extensions, enabling I/O class to read and write glTF assets requiring them. */
		public registerExtensions(extensions: typeof Extension[]): this {
		this._extensions.push(...extensions);
		return this;
		}

		/** Converts glTF-formatted JSON and a resource map to a {@link Document}. */
		public createDocument (nativeDoc: NativeDocument): Document {
		return GLTFReader.read(nativeDoc);
		return GLTFReader.read(nativeDoc, {extensions: this._extensions});
		}
		@@ -161,3 +171,3 @@
		})
		return GLTFReader.read(nativeDoc);
		return GLTFReader.read(nativeDoc, {extensions: this._extensions});
		}
		@@ -164,0 +174,0 @@

src/io/reader.ts

		import { getRotation, getScaling, getTranslation } from 'gl-matrix/mat4'
		import { GLB_BUFFER, TypedArray, vec3, vec4 } from '../constants';
		import { Document } from '../document';
		import { Extension, ExtensionConstructor } from '../extension';
		import { NativeDocument } from '../native-document';
		import { Accessor, TextureInfo, TextureSampler } from '../properties';
		import { FileUtils } from '../utils';
		import { ReaderContext } from './reader-context';

		@@ -17,5 +19,9 @@ const ComponentTypeToTypedArray = {

		export interface ReaderOptions {
		extensions: (typeof Extension)[];
		}

		/** @hidden */
		export class GLTFReader {
		public static read(nativeDoc: NativeDocument): Document {
		public static read(nativeDoc: NativeDocument, options: ReaderOptions): Document {
		const {json} = nativeDoc;
		@@ -28,6 +34,10 @@ const doc = new Document();

		/* Reader context. */

		const context = new ReaderContext(nativeDoc);

		/** Buffers. */

		const bufferDefs = json.buffers \|\| [];
		const buffers = bufferDefs.map((bufferDef) => {
		context.buffers = bufferDefs.map((bufferDef) => {
		const buffer = doc.createBuffer(bufferDef.name);
		@@ -43,4 +53,4 @@ if (bufferDef.uri && bufferDef.uri.indexOf('__') !== 0) {
		const bufferViewDefs = json.bufferViews \|\| [];
		const bufferViewToBuffer = bufferViewDefs.map((bufferViewDef) => {
		return buffers[bufferViewDef.buffer];
		context.bufferViewBuffers = bufferViewDefs.map((bufferViewDef) => {
		return context.buffers[bufferViewDef.buffer];
		});
		@@ -52,4 +62,4 @@
		const accessorDefs = json.accessors \|\| [];
		const accessors = accessorDefs.map((accessorDef) => {
		const buffer = bufferViewToBuffer[accessorDef.bufferView];
		context.accessors = accessorDefs.map((accessorDef) => {
		const buffer = context.bufferViewBuffers[accessorDef.bufferView];
		const accessor = doc.createAccessor(accessorDef.name, buffer);
		@@ -82,3 +92,3 @@ accessor.setType(accessorDef.type);
		const textureDefs = json.textures \|\| [];
		const textures = imageDefs.map((imageDef) => {
		context.textures = imageDefs.map((imageDef) => {
		const texture = doc.createTexture(imageDef.name);
		@@ -116,3 +126,3 @@
		const materialDefs = json.materials \|\| [];
		const materials = materialDefs.map((materialDef) => {
		context.materials = materialDefs.map((materialDef) => {
		const material = doc.createMaterial(materialDef.name);
		@@ -158,3 +168,3 @@
		const textureInfoDef = pbrDef.baseColorTexture;
		const texture = textures[textureDefs[textureInfoDef.index].source];
		const texture = context.textures[textureDefs[textureInfoDef.index].source];
		material.setBaseColorTexture(texture);
		@@ -167,3 +177,3 @@ setTextureInfo(material.getBaseColorTextureInfo(), textureInfoDef);
		const textureInfoDef = materialDef.emissiveTexture;
		const texture = textures[textureDefs[textureInfoDef.index].source];
		const texture = context.textures[textureDefs[textureInfoDef.index].source];
		material.setEmissiveTexture(texture);
		@@ -176,3 +186,3 @@ setTextureInfo(material.getEmissiveTextureInfo(), textureInfoDef);
		const textureInfoDef = materialDef.normalTexture;
		const texture = textures[textureDefs[textureInfoDef.index].source];
		const texture = context.textures[textureDefs[textureInfoDef.index].source];
		material.setNormalTexture(texture);
		@@ -188,3 +198,3 @@ setTextureInfo(material.getNormalTextureInfo(), textureInfoDef);
		const textureInfoDef = materialDef.occlusionTexture;
		const texture = textures[textureDefs[textureInfoDef.index].source];
		const texture = context.textures[textureDefs[textureInfoDef.index].source];
		material.setOcclusionTexture(texture);
		@@ -200,3 +210,3 @@ setTextureInfo(material.getOcclusionTextureInfo(), textureInfoDef);
		const textureInfoDef = pbrDef.metallicRoughnessTexture;
		const texture = textures[textureDefs[textureInfoDef.index].source];
		const texture = context.textures[textureDefs[textureInfoDef.index].source];
		material.setMetallicRoughnessTexture(texture);
		@@ -213,3 +223,3 @@ setTextureInfo(material.getMetallicRoughnessTextureInfo(), textureInfoDef);
		const meshDefs = json.meshes \|\| [];
		const meshes = meshDefs.map((meshDef) => {
		context.meshes = meshDefs.map((meshDef) => {
		const mesh = doc.createMesh(meshDef.name);
		@@ -225,3 +235,3 @@
		if (primitiveDef.material !== undefined) {
		primitive.setMaterial(materials[primitiveDef.material]);
		primitive.setMaterial(context.materials[primitiveDef.material]);
		}
		@@ -234,7 +244,7 @@
		for (const [semantic, index] of Object.entries(primitiveDef.attributes \|\| {})) {
		primitive.setAttribute(semantic, accessors[index]);
		primitive.setAttribute(semantic, context.accessors[index]);
		}

		if (primitiveDef.indices !== undefined) {
		primitive.setIndices(accessors[primitiveDef.indices]);
		primitive.setIndices(context.accessors[primitiveDef.indices]);
		}
		@@ -249,3 +259,3 @@
		for (const [semantic, accessorIndex] of Object.entries(targetDef)) {
		target.setAttribute(semantic, accessors[accessorIndex]);
		target.setAttribute(semantic, context.accessors[accessorIndex]);
		}
		@@ -265,3 +275,3 @@
		const cameraDefs = json.cameras \|\| [];
		const cameras = cameraDefs.map((cameraDef) => {
		context.cameras = cameraDefs.map((cameraDef) => {
		const camera = doc.createCamera(cameraDef.name).setType(cameraDef.type);
		@@ -287,3 +297,3 @@ if (cameraDef.type === GLTF.CameraType.PERSPECTIVE) {
		const nodeDefs = json.nodes \|\| [];
		const nodes = nodeDefs.map((nodeDef) => {
		context.nodes = nodeDefs.map((nodeDef) => {
		const node = doc.createNode(nodeDef.name);
		@@ -321,15 +331,15 @@
		const skinDefs = json.skins \|\| [];
		const skins = skinDefs.map((skinDef) => {
		context.skins = skinDefs.map((skinDef) => {
		const skin = doc.createSkin(skinDef.name);

		if (skinDef.inverseBindMatrices !== undefined) {
		skin.setInverseBindMatrices(accessors[skinDef.inverseBindMatrices]);
		skin.setInverseBindMatrices(context.accessors[skinDef.inverseBindMatrices]);
		}

		if (skinDef.skeleton !== undefined) {
		skin.setSkeleton(nodes[skinDef.skeleton]);
		skin.setSkeleton(context.nodes[skinDef.skeleton]);
		}

		for (const nodeIndex of skinDef.joints) {
		skin.addJoint(nodes[nodeIndex]);
		skin.addJoint(context.nodes[nodeIndex]);
		}
		@@ -343,12 +353,12 @@
		nodeDefs.map((nodeDef, nodeIndex) => {
		const node = nodes[nodeIndex];
		const node = context.nodes[nodeIndex];

		const children = nodeDef.children \|\| [];
		children.forEach((childIndex) => node.addChild(nodes[childIndex]));
		children.forEach((childIndex) => node.addChild(context.nodes[childIndex]));

		if (nodeDef.mesh !== undefined) node.setMesh(meshes[nodeDef.mesh]);
		if (nodeDef.mesh !== undefined) node.setMesh(context.meshes[nodeDef.mesh]);

		if (nodeDef.camera !== undefined) node.setCamera(cameras[nodeDef.camera]);
		if (nodeDef.camera !== undefined) node.setCamera(context.cameras[nodeDef.camera]);

		if (nodeDef.skin !== undefined) node.setSkin(skins[nodeDef.skin]);
		if (nodeDef.skin !== undefined) node.setSkin(context.skins[nodeDef.skin]);
		})
		@@ -359,3 +369,3 @@
		const animationDefs = json.animations \|\| [];
		const animations = animationDefs.map((animationDef) => {
		context.animations = animationDefs.map((animationDef) => {
		const animation = doc.createAnimation(animationDef.name);
		@@ -366,4 +376,4 @@
		const sampler = doc.createAnimationSampler()
		.setInput(accessors[samplerDef.input])
		.setOutput(accessors[samplerDef.output])
		.setInput(context.accessors[samplerDef.input])
		.setOutput(context.accessors[samplerDef.output])
		.setInterpolation(samplerDef.interpolation \|\| GLTF.AnimationSamplerInterpolation.LINEAR);
		@@ -378,3 +388,3 @@ animation.addSampler(sampler);
		.setSampler(samplers[channelDef.sampler])
		.setTargetNode(nodes[channelDef.target.node])
		.setTargetNode(context.nodes[channelDef.target.node])
		.setTargetPath(channelDef.target.path);
		@@ -390,3 +400,3 @@ animation.addChannel(channel);
		const sceneDefs = json.scenes \|\| [];
		const scenes = sceneDefs.map((sceneDef) => {
		context.scenes = sceneDefs.map((sceneDef) => {
		const scene = doc.createScene(sceneDef.name);
		@@ -397,3 +407,3 @@
		children
		.map((nodeIndex) => nodes[nodeIndex])
		.map((nodeIndex) => context.nodes[nodeIndex])
		.forEach((node) => (scene.addNode(node)));
		@@ -404,2 +414,14 @@

		/** Extensions. */

		const extensionsUsed = json.extensionsUsed \|\| [];
		const extensionsRequired = json.extensionsRequired \|\| [];
		for (const Extension of options.extensions) {
		if (extensionsUsed.includes(Extension.EXTENSION_NAME)) {
		doc.createExtension(Extension as ExtensionConstructor)
		.setRequired(extensionsRequired.includes(Extension.EXTENSION_NAME))
		.read(context);
		}
		}

		return doc;
		@@ -406,0 +428,0 @@ }

177

src/io/writer.ts

		@@ -5,7 +5,6 @@ import { GLB_BUFFER, NAME } from '../constants';
		import { NativeDocument } from '../native-document';
		import { Accessor, AnimationSampler, AttributeLink, Buffer, Camera, IndexLink, Material, Mesh, Node, Primitive, Property, Root, Skin, Texture, TextureInfo, TextureSampler } from '../properties';
		import { Accessor, AnimationSampler, AttributeLink, Buffer, IndexLink, Primitive, Property, Root, Texture } from '../properties';
		import { BufferUtils } from '../utils';
		import { WriterContext } from './writer-context';

		type PropertyDef = GLTF.IScene \| GLTF.INode \| GLTF.IMaterial \| GLTF.ISkin \| GLTF.ITexture;

		const BufferViewTarget = {
		@@ -35,16 +34,6 @@ ARRAY_BUFFER: 34962,

		/* Lookup tables. */
		/* Writer context. */

		const accessorIndexMap = new Map<Accessor, number>();
		const cameraIndexMap = new Map<Camera, number>();
		const skinIndexMap = new Map<Skin, number>();
		const materialIndexMap = new Map<Material, number>();
		const meshIndexMap = new Map<Mesh, number>();
		const nodeIndexMap = new Map<Node, number>();
		const imageIndexMap = new Map<Texture, number>();
		const textureIndexMap = new Map<string, number>(); // textureDef JSON -> index
		const samplerIndexMap = new Map<string, number>(); // samplerDef JSON -> index
		const context = new WriterContext(nativeDoc);

		const imageData: ArrayBuffer[] = [];

		/* Utilities. */
		@@ -72,3 +61,3 @@
		for (const accessor of accessors) {
		const accessorDef = createAccessorDef(accessor);
		const accessorDef = context.createAccessorDef(accessor);
		accessorDef.bufferView = json.bufferViews.length;
		@@ -82,3 +71,3 @@ // TODO(feat): accessorDef.sparse

		accessorIndexMap.set(accessor, json.accessors.length);
		context.accessorIndexMap.set(accessor, json.accessors.length);
		json.accessors.push(accessorDef);
		@@ -118,3 +107,3 @@ }
		for (const accessor of accessors) {
		const accessorDef = createAccessorDef(accessor);
		const accessorDef = context.createAccessorDef(accessor);
		accessorDef.bufferView = json.bufferViews.length;
		@@ -127,3 +116,3 @@ accessorDef.byteOffset = byteStride;

		accessorIndexMap.set(accessor, json.accessors.length);
		context.accessorIndexMap.set(accessor, json.accessors.length);
		json.accessors.push(accessorDef);
		@@ -188,37 +177,2 @@ }

		/**
		* Creates a TextureInfo definition, and any Texture or Sampler definitions it requires. If
		* possible, Texture and Sampler definitions are shared.
		*/
		function createTextureInfoDef(texture: Texture, textureInfo: TextureInfo, textureSampler: TextureSampler): GLTF.ITextureInfo {
		const samplerDef = {
		magFilter: textureSampler.getMagFilter() \|\| undefined,
		minFilter: textureSampler.getMinFilter() \|\| undefined,
		wrapS: textureSampler.getWrapS(),
		wrapT: textureSampler.getWrapT(),
		} as GLTF.ISampler;

		const samplerKey = JSON.stringify(samplerDef);
		if (!samplerIndexMap.has(samplerKey)) {
		samplerIndexMap.set(samplerKey, json.samplers.length);
		json.samplers.push(samplerDef);
		}

		const textureDef = {
		source: imageIndexMap.get(texture),
		sampler: samplerIndexMap.get(samplerKey)
		} as GLTF.ITexture;

		const textureKey = JSON.stringify(textureDef);
		if (!textureIndexMap.has(textureKey)) {
		textureIndexMap.set(textureKey, json.textures.length);
		json.textures.push(textureDef);
		}

		return {
		index: textureIndexMap.get(textureKey),
		texCoord: textureInfo.getTexCoord(),
		} as GLTF.ITextureInfo;
		}

		/* Data use pre-processing. */
		@@ -252,3 +206,3 @@
		json.images = root.listTextures().map((texture, textureIndex) => {
		const imageDef = createPropertyDef(texture) as GLTF.IImage;
		const imageDef = context.createPropertyDef(texture) as GLTF.IImage;

		@@ -260,3 +214,3 @@ if (texture.getMimeType()) {
		if (options.isGLB) {
		imageData.push(texture.getImage());
		context.imageData.push(texture.getImage());
		imageDef.bufferView = json.bufferViews.length;
		@@ -274,3 +228,3 @@ json.bufferViews.push({

		imageIndexMap.set(texture, textureIndex);
		context.imageIndexMap.set(texture, textureIndex);
		return imageDef;
		@@ -283,3 +237,3 @@ });
		root.listBuffers().forEach((buffer) => {
		const bufferDef = createPropertyDef(buffer) as GLTF.IBuffer;
		const bufferDef = context.createPropertyDef(buffer) as GLTF.IBuffer;

		@@ -362,7 +316,7 @@ // Attributes are grouped and interleaved in one buffer view per mesh primitive. Indices for
		// We only support embedded images in GLB, so we know there is only one buffer.
		if (imageData.length) {
		for (let i = 0; i < imageData.length; i++) {
		if (context.imageData.length) {
		for (let i = 0; i < context.imageData.length; i++) {
		json.bufferViews[json.images[i].bufferView].byteOffset = bufferByteLength;
		bufferByteLength += imageData[i].byteLength;
		buffers.push(imageData[i]);
		bufferByteLength += context.imageData[i].byteLength;
		buffers.push(context.imageData[i]);
		}
		@@ -397,3 +351,3 @@ }
		json.materials = root.listMaterials().map((material, index) => {
		const materialDef = createPropertyDef(material) as GLTF.IMaterial;
		const materialDef = context.createPropertyDef(material) as GLTF.IMaterial;

		@@ -422,3 +376,3 @@ // Program state & blending.
		const textureSampler = material.getBaseColorTextureSampler();
		materialDef.pbrMetallicRoughness.baseColorTexture = createTextureInfoDef(texture, textureInfo, textureSampler);
		materialDef.pbrMetallicRoughness.baseColorTexture = context.createTextureInfoDef(texture, textureInfo, textureSampler);
		}
		@@ -430,3 +384,3 @@
		const textureSampler = material.getEmissiveTextureSampler();
		materialDef.emissiveTexture = createTextureInfoDef(texture, textureInfo, textureSampler);
		materialDef.emissiveTexture = context.createTextureInfoDef(texture, textureInfo, textureSampler);
		}
		@@ -438,3 +392,3 @@
		const textureSampler = material.getNormalTextureSampler();
		const textureInfoDef = createTextureInfoDef(texture, textureInfo, textureSampler) as GLTF.IMaterialNormalTextureInfo;
		const textureInfoDef = context.createTextureInfoDef(texture, textureInfo, textureSampler) as GLTF.IMaterialNormalTextureInfo;
		if (material.getNormalScale() !== 1) {
		@@ -450,3 +404,3 @@ textureInfoDef.scale = material.getNormalScale();
		const textureSampler = material.getOcclusionTextureSampler();
		const textureInfoDef = createTextureInfoDef(texture, textureInfo, textureSampler) as GLTF.IMaterialOcclusionTextureInfo;
		const textureInfoDef = context.createTextureInfoDef(texture, textureInfo, textureSampler) as GLTF.IMaterialOcclusionTextureInfo;
		if (material.getOcclusionStrength() !== 1) {
		@@ -462,6 +416,6 @@ textureInfoDef.strength = material.getOcclusionStrength();
		const textureSampler = material.getMetallicRoughnessTextureSampler();
		materialDef.pbrMetallicRoughness.metallicRoughnessTexture = createTextureInfoDef(texture, textureInfo, textureSampler);
		materialDef.pbrMetallicRoughness.metallicRoughnessTexture = context.createTextureInfoDef(texture, textureInfo, textureSampler);
		}

		materialIndexMap.set(material, index);
		context.materialIndexMap.set(material, index);
		return materialDef;
		@@ -473,3 +427,3 @@ });
		json.meshes = root.listMeshes().map((mesh, index) => {
		const meshDef = createPropertyDef(mesh) as GLTF.IMesh;
		const meshDef = context.createPropertyDef(mesh) as GLTF.IMesh;

		@@ -480,11 +434,11 @@ let targetNames: string[];
		const primitiveDef: GLTF.IMeshPrimitive = {attributes: {}};
		primitiveDef.material = materialIndexMap.get(primitive.getMaterial());
		primitiveDef.material = context.materialIndexMap.get(primitive.getMaterial());
		primitiveDef.mode = primitive.getMode();

		if (primitive.getIndices()) {
		primitiveDef.indices = accessorIndexMap.get(primitive.getIndices());
		primitiveDef.indices = context.accessorIndexMap.get(primitive.getIndices());
		}

		for (const semantic of primitive.listSemantics()) {
		primitiveDef.attributes[semantic] = accessorIndexMap.get(primitive.getAttribute(semantic));
		primitiveDef.attributes[semantic] = context.accessorIndexMap.get(primitive.getAttribute(semantic));
		}
		@@ -496,3 +450,3 @@
		for (const semantic of target.listSemantics()) {
		targetDef[semantic] = accessorIndexMap.get(target.getAttribute(semantic));
		targetDef[semantic] = context.accessorIndexMap.get(target.getAttribute(semantic));
		}
		@@ -520,3 +474,3 @@

		meshIndexMap.set(mesh, index);
		context.meshIndexMap.set(mesh, index);
		return meshDef;
		@@ -528,3 +482,3 @@ });
		json.cameras = root.listCameras().map((camera, index) => {
		const cameraDef = createPropertyDef(camera) as GLTF.ICamera;
		const cameraDef = context.createPropertyDef(camera) as GLTF.ICamera;
		cameraDef.type = camera.getType();
		@@ -547,3 +501,3 @@ if (cameraDef.type === GLTF.CameraType.PERSPECTIVE) {

		cameraIndexMap.set(camera, index);
		context.cameraIndexMap.set(camera, index);
		return cameraDef;
		@@ -555,3 +509,3 @@ });
		json.nodes = root.listNodes().map((node, index) => {
		const nodeDef = createPropertyDef(node) as GLTF.INode;
		const nodeDef = context.createPropertyDef(node) as GLTF.INode;
		nodeDef.translation = node.getTranslation();
		@@ -567,3 +521,3 @@ nodeDef.rotation = node.getRotation();

		nodeIndexMap.set(node, index);
		context.nodeIndexMap.set(node, index);
		return nodeDef;
		@@ -575,15 +529,15 @@ });
		json.skins = root.listSkins().map((skin, index) => {
		const skinDef = createPropertyDef(skin) as GLTF.ISkin;
		const skinDef = context.createPropertyDef(skin) as GLTF.ISkin;

		if (skin.getInverseBindMatrices()) {
		skinDef.inverseBindMatrices = accessorIndexMap.get(skin.getInverseBindMatrices());
		skinDef.inverseBindMatrices = context.accessorIndexMap.get(skin.getInverseBindMatrices());
		}

		if (skin.getSkeleton()) {
		skinDef.skeleton = nodeIndexMap.get(skin.getSkeleton());
		skinDef.skeleton = context.nodeIndexMap.get(skin.getSkeleton());
		}

		skinDef.joints = skin.listJoints().map((joint) => nodeIndexMap.get(joint));
		skinDef.joints = skin.listJoints().map((joint) => context.nodeIndexMap.get(joint));

		skinIndexMap.set(skin, index);
		context.skinIndexMap.set(skin, index);
		return skinDef;
		@@ -598,15 +552,15 @@ });
		if (node.getMesh()) {
		nodeDef.mesh = meshIndexMap.get(node.getMesh());
		nodeDef.mesh = context.meshIndexMap.get(node.getMesh());
		}

		if (node.getCamera()) {
		nodeDef.camera = cameraIndexMap.get(node.getCamera());
		nodeDef.camera = context.cameraIndexMap.get(node.getCamera());
		}

		if (node.getSkin()) {
		nodeDef.skin = skinIndexMap.get(node.getSkin());
		nodeDef.skin = context.skinIndexMap.get(node.getSkin());
		}

		if (node.listChildren().length > 0) {
		nodeDef.children = node.listChildren().map((node) => nodeIndexMap.get(node));
		nodeDef.children = node.listChildren().map((node) => context.nodeIndexMap.get(node));
		}
		@@ -618,3 +572,3 @@ });
		json.animations = root.listAnimations().map((animation) => {
		const animationDef = createPropertyDef(animation) as GLTF.IAnimation;
		const animationDef = context.createPropertyDef(animation) as GLTF.IAnimation;

		@@ -625,5 +579,5 @@ const samplerIndexMap: Map<AnimationSampler, number> = new Map();
		.map((sampler, samplerIndex) => {
		const samplerDef = createPropertyDef(sampler) as GLTF.IAnimationSampler;
		samplerDef.input = accessorIndexMap.get(sampler.getInput());
		samplerDef.output = accessorIndexMap.get(sampler.getOutput());
		const samplerDef = context.createPropertyDef(sampler) as GLTF.IAnimationSampler;
		samplerDef.input = context.accessorIndexMap.get(sampler.getInput());
		samplerDef.output = context.accessorIndexMap.get(sampler.getOutput());
		samplerDef.interpolation = sampler.getInterpolation();
		@@ -636,6 +590,6 @@ samplerIndexMap.set(sampler, samplerIndex);
		.map((channel) => {
		const channelDef = createPropertyDef(channel) as GLTF.IAnimationChannel;
		const channelDef = context.createPropertyDef(channel) as GLTF.IAnimationChannel;
		channelDef.sampler = samplerIndexMap.get(channel.getSampler());
		channelDef.target = {
		node: nodeIndexMap.get(channel.getTargetNode()),
		node: context.nodeIndexMap.get(channel.getTargetNode()),
		path: channel.getTargetPath(),
		@@ -652,7 +606,13 @@ };
		json.scenes = root.listScenes().map((scene) => {
		const sceneDef = createPropertyDef(scene) as GLTF.IScene;
		sceneDef.nodes = scene.listNodes().map((node) => nodeIndexMap.get(node));
		const sceneDef = context.createPropertyDef(scene) as GLTF.IScene;
		sceneDef.nodes = scene.listNodes().map((node) => context.nodeIndexMap.get(node));
		return sceneDef;
		});

		/* Extensions. */

		json.extensionsUsed = root.listExtensionsUsed().map((ext) => ext.extensionName);
		json.extensionsRequired = root.listExtensionsRequired().map((ext) => ext.extensionName);
		root.listExtensionsUsed().forEach((extension) => extension.write(context));

		//
		@@ -666,27 +626,2 @@

		function createPropertyDef(property: Property): PropertyDef {
		const def = {} as PropertyDef;
		if (property.getName()) {
		def.name = property.getName();
		}
		if (Object.keys(property.getExtras()).length > 0) {
		def.extras = property.getExtras();
		}
		if (Object.keys(property.getExtensions()).length > 0) {
		def.extras = property.getExtensions();
		}
		return def;
		}

		function createAccessorDef(accessor: Accessor): GLTF.IAccessor {
		const accessorDef = createPropertyDef(accessor) as GLTF.IAccessor;
		accessorDef.type = accessor.getType();
		accessorDef.componentType = accessor.getComponentType();
		accessorDef.count = accessor.getCount();
		accessor.getMax((accessorDef.max = []));
		accessor.getMin((accessorDef.min = []));
		accessorDef.normalized = accessor.getNormalized();
		return accessorDef;
		}

		/**
		@@ -693,0 +628,0 @@ * Removes empty and null values from an object.

src/properties/accessor.ts

		import { TypedArray } from '../constants';
		import { GraphChild, Link } from '../graph';
		import { Buffer } from './buffer';
		import { Property } from './property';
		import { ExtensibleProperty } from './extensible-property';

		@@ -81,3 +81,3 @@ /**
		*/
		export class Accessor extends Property {
		export class Accessor extends ExtensibleProperty {
		public readonly propertyType = 'Accessor';
		@@ -84,0 +84,0 @@

src/properties/animation.ts

		import { GraphChild, GraphChildList, Link } from '../graph';
		import { Accessor } from './accessor';
		import { ExtensibleProperty } from './extensible-property';
		import { Node } from './node';
		@@ -42,3 +43,3 @@ import { Property } from './property';
		*/
		export class Animation extends Property {
		export class Animation extends ExtensibleProperty {
		public readonly propertyType = 'Animation';
		@@ -45,0 +46,0 @@ @GraphChildList private channels: Link<Animation, AnimationChannel>[] = [];

src/properties/buffer.ts

		@@ -1,2 +0,2 @@
		import { Property } from './property';
		import { ExtensibleProperty } from './extensible-property';

		@@ -58,3 +58,3 @@ /**
		*/
		export class Buffer extends Property {
		export class Buffer extends ExtensibleProperty {
		public readonly propertyType = 'Buffer';
		@@ -61,0 +61,0 @@

src/properties/camera.ts

		@@ -1,2 +0,2 @@
		import { Property } from './property';
		import { ExtensibleProperty } from './extensible-property';

		@@ -31,3 +31,3 @@ /**
		*/
		export class Camera extends Property {
		export class Camera extends ExtensibleProperty {
		public readonly propertyType = 'Camera';
		@@ -34,0 +34,0 @@

src/properties/index.ts

		@@ -5,2 +5,3 @@ export * from './accessor';
		export * from './camera';
		export * from './extension-property';
		export * from './property';
		@@ -7,0 +8,0 @@ export * from './property-graph';

src/properties/material.ts

		import { vec3, vec4 } from '../constants';
		import { GraphChild } from '../graph/index';
		import { Property } from './property';
		import { ExtensibleProperty } from './extensible-property';
		import { TextureLink } from './property-links';
		@@ -39,3 +39,3 @@ import { Texture, TextureInfo, TextureSampler } from './texture';
		*/
		export class Material extends Property {
		export class Material extends ExtensibleProperty {
		public readonly propertyType = 'Material';
		@@ -42,0 +42,0 @@

src/properties/mesh.ts

		import { GraphChild, GraphChildList } from '../graph/index';
		import { Link } from '../graph/index';
		import { Accessor } from './accessor';
		import { ExtensibleProperty } from './extensible-property';
		import { Material } from './material';
		@@ -41,3 +42,3 @@ import { Property } from './property';
		*/
		export class Mesh extends Property {
		export class Mesh extends ExtensibleProperty {
		public readonly propertyType = 'Mesh';
		@@ -44,0 +45,0 @@

src/properties/node.ts

		@@ -5,5 +5,4 @@ import { vec3, vec4 } from '../constants';
		import { Camera } from './camera';
		import { ExtensibleProperty } from './extensible-property';
		import { Mesh } from './mesh';
		import { Property } from './property';
		import { Root } from './root';
		import { Skin } from './skin';
		@@ -39,3 +38,3 @@
		*/
		export class Node extends Property {
		export class Node extends ExtensibleProperty {
		public readonly propertyType = 'Node';
		@@ -42,0 +41,0 @@ private _translation: vec3 = [0, 0, 0];

src/properties/property.ts

		@@ -1,2 +0,1 @@
		import { NotImplementedError } from '../constants';
		import { GraphNode } from '../graph';
		@@ -42,3 +41,3 @@ import { PropertyGraph } from './property-graph';
		/** Property type. */
		public readonly propertyType: string;
		public abstract readonly propertyType: string;

		@@ -51,5 +50,2 @@ protected readonly _graph: PropertyGraph;

		// TODO(feat): Extensions should be Properties.
		protected _extensions: object = {};

		/** @hidden */
		@@ -61,2 +57,6 @@ constructor(graph: PropertyGraph, name = '') {

		/**********************************************************************************************
		* Name.
		*/

		/**
		@@ -79,2 +79,6 @@ * Returns the name of this property. While names are not required to be unique, this is

		/**********************************************************************************************
		* Extras.
		*/

		/** @hidden */
		@@ -89,11 +93,6 @@ public getExtras(): object { return this._extras; }

		/** @hidden */
		public getExtensions(): object { return this._extensions; }
		/**********************************************************************************************
		* Graph state.
		*/

		/** @hidden */
		public setExtensions(extensions: object): this {
		this._extensions = extensions;
		return this;
		}

		/**
		@@ -104,3 +103,3 @@ * Makes a copy of this property, referencing the same resources (not copies) as the original.
		public clone(): Property {
		throw new NotImplementedError();
		throw new Error('Not implemented.');
		}
		@@ -107,0 +106,0 @@

131

src/properties/root.ts

		import { VERSION } from '../constants';
		import { Extension } from '../extension';
		import { GraphChildList, Link } from '../graph/index';
		@@ -55,2 +56,4 @@ import { Accessor } from './accessor';

		private readonly _extensions: Set<Extension> = new Set();

		@GraphChildList private scenes: Link<Root, Scene>[] = [];
		@@ -76,2 +79,31 @@ @GraphChildList private nodes: Link<Root, Node>[] = [];
		/**********************************************************************************************
		* Extensions.
		*/

		/** Lists all {@link Extension} properties enabled for this root. */
		public listExtensionsUsed(): Extension[] {
		return Array.from(this._extensions);
		}

		/** Lists all {@link Extension} properties enabled and required for this root. */
		public listExtensionsRequired(): Extension[] {
		return this.listExtensionsUsed().filter((extension) => extension.isRequired());
		}

		/** @hidden */
		public _enableExtension(extension: Extension): this {
		if (this._extensions.has(extension)) {
		throw new Error(`Extension "${extension.extensionName}" is already enabled.`);
		}
		this._extensions.add(extension);
		return this;
		}

		/** @hidden */
		public _disableExtension(extension: Extension): this {
		this._extensions.delete(extension);
		return this;
		}

		/**********************************************************************************************
		* Scenes.
		@@ -84,14 +116,6 @@ */
		*/
		public addScene(scene: Scene): this {
		public _addScene(scene: Scene): this {
		return this.addGraphChild(this.scenes, this._graph.link('scene', this, scene));
		}

		/**
		* Removes a {@link Scene} from the root list.
		* @hidden
		*/
		public removeScene(scene: Scene): this {
		return this.removeGraphChild(this.scenes, scene);
		}

		/** Lists all {@link Scene} properties associated with this root. */
		@@ -110,14 +134,6 @@ public listScenes(): Scene[] {
		*/
		public addNode(node: Node): this {
		public _addNode(node: Node): this {
		return this.addGraphChild(this.nodes, this._graph.link('node', this, node));
		}

		/**
		* Removes a {@link Node} from the root list.
		* @hidden
		*/
		public removeNode(node: Node): this {
		return this.removeGraphChild(this.nodes, node);
		}

		/** Lists all {@link Node} properties associated with this root. */
		@@ -136,14 +152,6 @@ public listNodes(): Node[] {
		*/
		public addCamera(camera: Camera): this {
		public _addCamera(camera: Camera): this {
		return this.addGraphChild(this.cameras, this._graph.link('camera', this, camera));
		}

		/**
		* Removes a {@link Camera} from the root list.
		* @hidden
		*/
		public removeCamera(camera: Camera): this {
		return this.removeGraphChild(this.cameras, camera);
		}

		/** Lists all {@link Camera} properties associated with this root. */
		@@ -162,14 +170,6 @@ public listCameras(): Camera[] {
		*/
		public addSkin(skin: Skin): this {
		public _addSkin(skin: Skin): this {
		return this.addGraphChild(this.skins, this._graph.link('skin', this, skin));
		}

		/**
		* Removes a {@link Skin} from the root list.
		* @hidden
		*/
		public removeSkin(skin: Skin): this {
		return this.removeGraphChild(this.skins, skin);
		}

		/** Lists all {@link Skin} properties associated with this root. */
		@@ -188,14 +188,6 @@ public listSkins(): Skin[] {
		*/
		public addMesh(mesh: Mesh): this {
		public _addMesh(mesh: Mesh): this {
		return this.addGraphChild(this.meshes, this._graph.link('mesh', this, mesh));
		}

		/**
		* Removes a {@link Mesh} from the root list.
		* @hidden
		*/
		public removeMesh(mesh: Mesh): this {
		return this.removeGraphChild(this.meshes, mesh);
		}

		/** Lists all {@link Mesh} properties associated with this root. */
		@@ -214,14 +206,6 @@ public listMeshes(): Mesh[] {
		*/
		public addMaterial(material: Material): this {
		public _addMaterial(material: Material): this {
		return this.addGraphChild(this.materials, this._graph.link('material', this, material));
		}

		/**
		* Removes a {@link Material} from the root list.
		* @hidden
		*/
		public removeMaterial(material: Material): this {
		return this.removeGraphChild(this.materials, material);
		}

		/** Lists all {@link Material} properties associated with this root. */
		@@ -240,13 +224,6 @@ public listMaterials(): Material[] {
		*/
		public addTexture(texture: Texture): this {
		public _addTexture(texture: Texture): this {
		return this.addGraphChild(this.textures, this._graph.link('texture', this, texture));
		}

		/**
		* Removes a {@link Texture} from the root list.
		* @hidden
		*/
		public removeTexture(texture: Texture): this {
		return this.removeGraphChild(this.textures, texture);
		}

		@@ -266,14 +243,6 @@ /** Lists all {@link Texture} properties associated with this root. */
		*/
		public addAnimation(animation: Animation): this {
		public _addAnimation(animation: Animation): this {
		return this.addGraphChild(this.animations, this._graph.link('animation', this, animation));
		}

		/**
		* Removes a {@link Animation} from the root list.
		* @hidden
		*/
		public removeAnimation(animation: Animation): this {
		return this.removeGraphChild(this.animations, animation);
		}

		/** Lists all {@link Animation} properties associated with this root. */
		@@ -293,14 +262,6 @@ public listAnimations(): Animation[] {
		*/
		public addAccessor(accessor: Accessor): this {
		public _addAccessor(accessor: Accessor): this {
		return this.addGraphChild(this.accessors, this._graph.link('accessor', this, accessor));
		}

		/**
		* Removes an {@link Accessor} from the root list.
		* @hidden
		*/
		public removeAccessor(accessor: Accessor): this {
		return this.removeGraphChild(this.accessors, accessor);
		}

		/** Lists all {@link Accessor} properties associated with this root. */
		@@ -319,14 +280,6 @@ public listAccessors(): Accessor[] {
		*/
		public addBuffer(buffer: Buffer): this {
		public _addBuffer(buffer: Buffer): this {
		return this.addGraphChild(this.buffers, this._graph.link('buffer', this, buffer));
		}

		/**
		* Removes a {@link Buffer} from the root list.
		* @hidden
		*/
		public removeBuffer(buffer: Buffer): this {
		return this.removeGraphChild(this.buffers, buffer);
		}

		/** Lists all {@link Buffer} properties associated with this root. */
		@@ -333,0 +286,0 @@ public listBuffers(): Buffer[] {

src/properties/scene.ts

		import { GraphChildList, Link } from '../graph/index';
		import { ExtensibleProperty } from './extensible-property';
		import { Node } from './node';
		import { Property } from './property';
		import { Root } from './root';

		@@ -22,3 +21,3 @@ /**
		*/
		export class Scene extends Property {
		export class Scene extends ExtensibleProperty {
		public readonly propertyType = 'Scene';
		@@ -25,0 +24,0 @@

src/properties/skin.ts

		import { GraphChild, GraphChildList, Link } from '../graph';
		import { Accessor } from './accessor';
		import { ExtensibleProperty } from './extensible-property';
		import { Node } from './node';
		import { Property } from './property';

		@@ -17,3 +17,3 @@ /**
		*/
		export class Skin extends Property {
		export class Skin extends ExtensibleProperty {
		public readonly propertyType = 'Skin';
		@@ -20,0 +20,0 @@

src/properties/texture.ts

		import { vec2 } from '../constants';
		import { ImageUtils } from '../utils';
		import { Property } from './property';
		import { ExtensibleProperty } from './extensible-property';

		@@ -26,3 +26,3 @@ /**
		*/
		export class Texture extends Property {
		export class Texture extends ExtensibleProperty {
		public readonly propertyType = 'Texture';
		@@ -29,0 +29,0 @@

src/utils/uuid.ts

		@@ -28,6 +28,8 @@ const ALPHABET = '23456789abdegjkmnpqrvwxyzABDEGJKMNPQRVWXYZ';
		for (let retries = 0; retries < UNIQUE_RETRIES; retries++) {
		const id = generateOne();
		if (!previousIDs.has(id)) return id;
		const id = generateOne();
		if (!previousIDs.has(id)) {
		previousIDs.add(id);
		return id;
		}
		}
		return '';
		};

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