@gltf-transform/core - npm Package Compare versions

Comparing version 0.7.2 to 0.7.3

dist/core.modern.js

@@ -1,2 +0,2 @@
-import{fromRotationTranslationScale as t,getTranslation as s,getRotation as e,getScaling as r,multiply as i}from"gl-matrix/mat4";const n="@glb.bin";var h;function o(t,s,e,r){var i,n=arguments.length,h=n<3?s:null===r?r=Object.getOwnPropertyDescriptor(s,e):r;if("object"==typeof Reflect&&"function"==typeof Reflect.decorate)h=Reflect.decorate(t,s,e,r);else for(var o=t.length-1;o>=0;o--)(i=t[o])&&(h=(n<3?i(h):n>3?i(s,e,h):i(s,e))||h);return n>3&&h&&Object.defineProperty(s,e,h),h}!function(t){t.ACCESSOR="Accessor",t.ANIMATION="Animation",t.ANIMATION_CHANNEL="AnimationChannel",t.ANIMATION_SAMPLER="AnimationSampler",t.BUFFER="Buffer",t.CAMERA="Camera",t.MATERIAL="Material",t.MESH="Mesh",t.PRIMITIVE="Primitive",t.PRIMITIVE_TARGET="PrimitiveTarget",t.NODE="Node",t.ROOT="Root",t.SCENE="Scene",t.SKIN="Skin",t.TEXTURE="Texture",t.TEXTURE_INFO="TextureInfo"}(h||(h={}));class u{constructor(t,s,e){if(this.t=t,this.s=s,this.i=e,this.h=!1,this.o=[],!s.canLink(e))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 c{constructor(){this.u=new Set,this.l=new Map,this.p=new Map}getLinks(){return Array.from(this.u)}listParents(t){return(this.p.get(t)||[]).map(t=>t.getParent())}listChildren(t){return(this.l.get(t)||[]).map(t=>t.getChild())}disconnectChildren(t){return(this.l.get(t)||[]).forEach(t=>t.dispose()),this}disconnectParents(t,s){let e=this.p.get(t)||[];return s&&(e=e.filter(t=>s(t.getParent()))),e.forEach(t=>t.dispose()),this}link(t,s,e){if(!e)return null;const r=new u(t,s,e);return this.registerLink(r),r}registerLink(t){this.u.add(t);const s=t.getParent();this.l.has(s)||this.l.set(s,[]),this.l.get(s).push(t);const e=t.getChild();return 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v{constructor(t){this.verbosity=t}debug(t){this.verbosity<=v.Verbosity.DEBUG&&console.debug(t)}info(t){this.verbosity<=v.Verbosity.INFO&&console.info(t)}warn(t){this.verbosity<=v.Verbosity.WARN&&console.warn(t)}error(t){this.verbosity<=v.Verbosity.ERROR&&console.error(t)}}v.Verbosity={SILENT:4,ERROR:3,WARN:2,INFO:1,DEBUG:0},v.DEFAULT_INSTANCE=new v(v.Verbosity.INFO);const x="23456789abdegjkmnpqrvwxyzABDEGJKMNPQRVWXYZ",y=new Set,T=function(){let t="";for(let s=0;s<6;s++)t+=x.charAt(Math.floor(Math.random()*x.length));return t},A=function(){for(let t=0;t<999;t++){const t=T();if(!y.has(t))return y.add(t),t}},E=t=>t;class b extends class{constructor(t){this.h=!1,this.graph=t}canLink(t){return this.graph===t.graph}isDisposed(){return this.h}dispose(){this.graph.disconnectChildren(this),this.graph.disconnectParents(this),this.h=!0}detach(){return this.graph.disconnectParents(this),this}swap(t,s){return this.graph.getLinks().filter(s=>s.getParent()===this&&s.getChild()===t).forEach(t=>t.setChild(s)),this}addGraphChild(t,s){return t.push(s),s.onDispose(()=>{const e=t.filter(t=>t!==s);t.length=0,t.push(...e)}),this}removeGraphChild(t,s){return t.filter(t=>t.getChild()===s).forEach(t=>t.dispose()),this}clearGraphChildList(t){for(;t.length>0;)t[0].dispose();return this}listGraphParents(){return this.graph.listParents(this)}}{constructor(t,s=""){super(t),this.g={},this.t="",this.t=s}getName(){return this.t}setName(t){return this.t=t,this}getExtras(){return this.g}setExtras(t){return this.g=t,this}clone(){return new(0,this.constructor)(this.graph).copy(this,E)}copy(t,s){return this.t=t.t,this.g=JSON.parse(JSON.stringify(t.g)),this}detach(){return this.graph.disconnectParents(this,t=>"Root"!==t.propertyType),this}listParents(){return this.listGraphParents()}}const M="Pass extension name (string) as lookup token, not a constructor.";class S extends 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this.buffer?this.buffer.getChild():null}setBuffer(t){return this.buffer=this.graph.link("buffer",this,t),this}getArray(){return this.v}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.v=t,this}getByteLength(){return this.v.byteLength}}I.Type={SCALAR:"SCALAR",VEC2:"VEC2",VEC3:"VEC3",VEC4:"VEC4",MAT3:"MAT3",MAT4:"MAT4"},I.ComponentType={BYTE:5120,UNSIGNED_BYTE:5121,SHORT:5122,UNSIGNED_SHORT:5123,UNSIGNED_INT:5125,FLOAT:5126},o([a],I.prototype,"buffer",void 0);class R extends S{constructor(){super(...arguments),this.propertyType=h.ANIMATION,this.channels=[],this.samplers=[]}copy(t,s=E){return super.copy(t,s),this.clearGraphChildList(this.channels),this.clearGraphChildList(this.samplers),t.channels.forEach(t=>this.addChannel(s(t.getChild()))),t.samplers.forEach(t=>this.addSampler(s(t.getChild()))),this}addChannel(t){const s=this.graph.link("channel",this,t);return this.addGraphChild(this.channels,s)}removeChannel(t){return this.removeGraphChild(this.channels,t)}listChannels(){return this.channels.map(t=>t.getChild())}addSampler(t){const s=this.graph.link("sampler",this,t);return this.addGraphChild(this.samplers,s)}removeSampler(t){return this.removeGraphChild(this.samplers,t)}listSamplers(){return this.samplers.map(t=>t.getChild())}}o([l],R.prototype,"channels",void 0),o([l],R.prototype,"samplers",void 0);class N extends b{constructor(){super(...arguments),this.propertyType=h.ANIMATION_CHANNEL,this.R=null,this.targetNode=null,this.sampler=null}copy(t,s=E){return 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this.input?this.input.getChild():null}setInput(t){return this.input=this.graph.link("input",this,t),this}getOutput(){return this.output?this.output.getChild():null}setOutput(t){return this.output=this.graph.link("output",this,t),this}}o([a],C.prototype,"input",void 0),o([a],C.prototype,"output",void 0);class _ extends S{constructor(){super(...arguments),this.propertyType=h.BUFFER}copy(t,s=E){return super.copy(t,s),this.C=t.C,this}getURI(){return this.C}setURI(t){return this.C=t,this}}class B extends S{constructor(){super(...arguments),this.propertyType=h.CAMERA,this.T="perspective"}copy(t,s=E){return super.copy(t,s),this.T=t.T,this._=t._,this.B=t.B,this.L=t.L,this.O=t.O,this.U=t.U,this.k=t.k,this}getType(){return this.T}setType(t){return this.T=t,this}getZNear(){return this._}setZNear(t){return this._=t,this}getZFar(){return this.B}setZFar(t){return this.B=t,this}getAspectRatio(){return this.L}setAspectRatio(t){return this.L=t,this}getYFov(){return this.O}setYFov(t){return this.O=t,this}getXMag(){return this.U}setXMag(t){return this.U=t,this}getYMag(){return this.k}setYMag(t){return this.k=t,this}}class L extends b{constructor(t,s){super(t),this.P=s,this.P.addExtensionProperty(this)}dispose(){this.P.removeExtensionProperty(this),super.dispose()}m(t){if(!this.parentTypes.includes(t.propertyType))throw new Error(`Parent "${t.propertyType}" invalid for child "${this.propertyType}".`)}}class O extends u{constructor(){super(...arguments),this.semantic=""}copy(t){return this.semantic=t.semantic,this}}class U extends u{copy(t){return this}}class k extends c{linkAttribute(t,s,e){if(!e)return null;const r=new O(t,s,e);return this.registerLink(r),r}linkIndex(t,s,e){if(!e)return null;const r=new U(t,s,e);return this.registerLink(r),r}}class P extends S{constructor(){super(...arguments),this.propertyType=h.TEXTURE_INFO,this.F=0,this.G=null,this.j=null,this.D=10497,this.J=10497}copy(t,s=E){return super.copy(t,s),this.F=t.F,this.G=t.G,this.j=t.j,this.D=t.D,this.J=t.J,this}getTexCoord(){return this.F}setTexCoord(t){return this.F=t,this}getMagFilter(){return this.G}setMagFilter(t){return this.G=t,this}getMinFilter(){return this.j}setMinFilter(t){return this.j=t,this}getWrapS(){return this.D}setWrapS(t){return this.D=t,this}getWrapT(){return this.J}setWrapT(t){return this.J=t,this}}P.TextureWrapMode={CLAMP_TO_EDGE:33071,MIRRORED_REPEAT:33648,REPEAT:10497},P.TextureMagFilter={NEAREST:9728,LINEAR:9729},P.TextureMinFilter={NEAREST:9728,LINEAR:9729,NEAREST_MIPMAP_NEAREST:9984,LINEAR_MIPMAP_NEAREST:9985,NEAREST_MIPMAP_LINEAR:9986,LINEAR_MIPMAP_LINEAR:9987};class F extends S{constructor(){super(...arguments),this.propertyType=h.MATERIAL,this.$="OPAQUE",this.V=.5,this.W=!1,this.q=[1,1,1,1],this.H=[0,0,0],this.Y=1,this.Z=1,this.X=1,this.K=1,this.baseColorTexture=null,this.baseColorTextureInfo=this.graph.link("baseColorTextureInfo",this,new P(this.graph)),this.emissiveTexture=null,this.emissiveTextureInfo=this.graph.link("emissiveTextureInfo",this,new P(this.graph)),this.normalTexture=null,this.normalTextureInfo=this.graph.link("normalTextureInfo",this,new P(this.graph)),this.occlusionTexture=null,this.occlusionTextureInfo=this.graph.link("occlusionTextureInfo",this,new P(this.graph)),this.metallicRoughnessTexture=null,this.metallicRoughnessTextureInfo=this.graph.link("metallicRoughnessTextureInfo",this,new P(this.graph))}copy(t,s=E){return super.copy(t,s),this.$=t.$,this.V=t.V,this.W=t.W,this.q=[...t.q],this.H=[...t.H],this.Y=t.Y,this.Z=t.Z,this.X=t.X,this.K=t.K,t.baseColorTexture&&(this.setBaseColorTexture(s(t.baseColorTexture.getChild())),this.getBaseColorTextureInfo().copy(s(t.baseColorTextureInfo.getChild()),s)),t.emissiveTexture&&(this.setEmissiveTexture(s(t.emissiveTexture.getChild())),this.getEmissiveTextureInfo().copy(s(t.emissiveTextureInfo.getChild()),s)),t.normalTexture&&(this.setNormalTexture(s(t.normalTexture.getChild())),this.getNormalTextureInfo().copy(s(t.normalTextureInfo.getChild()),s)),t.occlusionTexture&&(this.setOcclusionTexture(s(t.occlusionTexture.getChild())),this.getOcclusionTextureInfo().copy(s(t.occlusionTextureInfo.getChild()),s)),t.metallicRoughnessTexture&&(this.setMetallicRoughnessTexture(s(t.metallicRoughnessTexture.getChild())),this.getMetallicRoughnessTextureInfo().copy(s(t.metallicRoughnessTextureInfo.getChild()),s)),this}dispose(){this.baseColorTextureInfo.getChild().dispose(),this.emissiveTextureInfo.getChild().dispose(),this.normalTextureInfo.getChild().dispose(),this.occlusionTextureInfo.getChild().dispose(),this.metallicRoughnessTextureInfo.getChild().dispose(),super.dispose()}getDoubleSided(){return this.W}setDoubleSided(t){return this.W=t,this}getAlpha(){return this.q[3]}setAlpha(t){return this.q[3]=t,this}getAlphaMode(){return this.$}setAlphaMode(t){return this.$=t,this}getAlphaCutoff(){return this.V}setAlphaCutoff(t){return this.V=t,this}getBaseColorFactor(){return this.q}setBaseColorFactor(t){return this.q=t,this}getBaseColorHex(){return d.factorToHex(this.q)}setBaseColorHex(t){return d.hexToFactor(t,this.q),this}getBaseColorTexture(){return this.baseColorTexture?this.baseColorTexture.getChild():null}getBaseColorTextureInfo(){return this.baseColorTexture?this.baseColorTextureInfo.getChild():null}setBaseColorTexture(t){return this.baseColorTexture=this.graph.link("baseColorTexture",this,t),this}getEmissiveFactor(){return this.H}setEmissiveFactor(t){return this.H=t,this}getEmissiveHex(){return d.factorToHex(this.H)}setEmissiveHex(t){return d.hexToFactor(t,this.H),this}getEmissiveTexture(){return this.emissiveTexture?this.emissiveTexture.getChild():null}getEmissiveTextureInfo(){return this.emissiveTexture?this.emissiveTextureInfo.getChild():null}setEmissiveTexture(t){return this.emissiveTexture=this.graph.link("emissiveTexture",this,t),this}getNormalScale(){return this.Y}setNormalScale(t){return this.Y=t,this}getNormalTexture(){return this.normalTexture?this.normalTexture.getChild():null}getNormalTextureInfo(){return this.normalTexture?this.normalTextureInfo.getChild():null}setNormalTexture(t){return this.normalTexture=this.graph.link("normalTexture",this,t),this}getOcclusionStrength(){return this.Z}setOcclusionStrength(t){return this.Z=t,this}getOcclusionTexture(){return this.occlusionTexture?this.occlusionTexture.getChild():null}getOcclusionTextureInfo(){return this.occlusionTexture?this.occlusionTextureInfo.getChild():null}setOcclusionTexture(t){return this.occlusionTexture=this.graph.link("occlusionTexture",this,t),this}getRoughnessFactor(){return this.X}setRoughnessFactor(t){return this.X=t,this}getMetallicFactor(){return this.K}setMetallicFactor(t){return this.K=t,this}getMetallicRoughnessTexture(){return this.metallicRoughnessTexture?this.metallicRoughnessTexture.getChild():null}getMetallicRoughnessTextureInfo(){return this.metallicRoughnessTexture?this.metallicRoughnessTextureInfo.getChild():null}setMetallicRoughnessTexture(t){return this.metallicRoughnessTexture=this.graph.link("metallicRoughnessTexture",this,t),this}}o([a],F.prototype,"baseColorTexture",void 0),o([a],F.prototype,"baseColorTextureInfo",void 0),o([a],F.prototype,"emissiveTexture",void 0),o([a],F.prototype,"emissiveTextureInfo",void 0),o([a],F.prototype,"normalTexture",void 0),o([a],F.prototype,"normalTextureInfo",void 0),o([a],F.prototype,"occlusionTexture",void 0),o([a],F.prototype,"occlusionTextureInfo",void 0),o([a],F.prototype,"metallicRoughnessTexture",void 0),o([a],F.prototype,"metallicRoughnessTextureInfo",void 0);class G extends S{constructor(){super(...arguments),this.propertyType=h.MESH,this.tt=[],this.primitives=[]}copy(t,s=E){return super.copy(t,s),this.tt=[...t.tt],this.clearGraphChildList(this.primitives),t.primitives.forEach(t=>this.addPrimitive(s(t.getChild()))),this}addPrimitive(t){return this.addGraphChild(this.primitives,this.graph.link("primitive",this,t))}removePrimitive(t){return this.removeGraphChild(this.primitives,t)}listPrimitives(){return this.primitives.map(t=>t.getChild())}getWeights(){return this.tt}setWeights(t){return this.tt=t,this}}o([l],G.prototype,"primitives",void 0);class j extends S{constructor(){super(...arguments),this.propertyType=h.NODE,this.st=[0,0,0],this.et=[0,0,0,1],this.rt=[1,1,1],this.tt=[],this.s=null,this.camera=null,this.mesh=null,this.skin=null,this.children=[]}copy(t,s=E){return super.copy(t,s),this.st=[...t.st],this.et=[...t.et],this.rt=[...t.rt],this.tt=[...t.tt],t.camera&&this.setCamera(s(t.camera.getChild())),t.mesh&&this.setMesh(s(t.mesh.getChild())),t.skin&&this.setSkin(s(t.skin.getChild())),s!==E&&(this.clearGraphChildList(this.children),t.children.forEach(t=>this.addChild(s(t.getChild())))),this}getTranslation(){return this.st}getRotation(){return this.et}getScale(){return this.rt}setTranslation(t){return this.st=t,this}setRotation(t){return this.et=t,this}setScale(t){return this.rt=t,this}getMatrix(){return t([],this.et,this.st,this.rt)}getWorldTranslation(){return s([],this.getWorldMatrix())}getWorldRotation(){return e([],this.getWorldMatrix())}getWorldScale(){return r([],this.getWorldMatrix())}getWorldMatrix(){const t=[];for(let s=this;s instanceof j;s=s.s)t.push(s);let s;const e=t.pop().getMatrix();for(;s=t.pop();)i(e,e,s.getMatrix());return e}addChild(t){t.s&&t.s.removeChild(t);const s=this.graph.link("child",this,t);return this.addGraphChild(this.children,s),t.s=this,s.onDispose(()=>t.s=null),this}removeChild(t){return this.removeGraphChild(this.children,t)}listChildren(){return this.children.map(t=>t.getChild())}getParent(){return this.s}getMesh(){return this.mesh?this.mesh.getChild():null}setMesh(t){return this.mesh=this.graph.link("mesh",this,t),this}getCamera(){return this.camera?this.camera.getChild():null}setCamera(t){return this.camera=this.graph.link("camera",this,t),this}getSkin(){return this.skin?this.skin.getChild():null}setSkin(t){return this.skin=this.graph.link("skin",this,t),this}getWeights(){return this.tt}setWeights(t){return this.tt=t,this}traverse(t){t(this);for(const s of this.listChildren())s.traverse(t);return this}}o([a],j.prototype,"camera",void 0),o([a],j.prototype,"mesh",void 0),o([a],j.prototype,"skin",void 0),o([l],j.prototype,"children",void 0);class D extends b{constructor(){super(...arguments),this.propertyType=h.PRIMITIVE,this.it=4,this.material=null,this.indices=null,this.attributes=[],this.targets=[]}copy(t,s=E){return super.copy(t,s),this.it=t.it,t.indices&&this.setIndices(s(t.indices.getChild())),t.material&&this.setMaterial(s(t.material.getChild())),this.clearGraphChildList(this.attributes),t.listSemantics().forEach(e=>{this.setAttribute(e,s(t.getAttribute(e)))}),this.clearGraphChildList(this.targets),t.targets.forEach(t=>this.addTarget(s(t.getChild()))),this}getIndices(){return this.indices?this.indices.getChild():null}setIndices(t){return this.indices=this.graph.linkIndex("index",this,t),this}getAttribute(t){const s=this.attributes.find(s=>s.semantic===t);return s?s.getChild():null}setAttribute(t,s){const e=this.getAttribute(t);if(e&&this.removeGraphChild(this.attributes,e),!s)return this;const r=this.graph.linkAttribute(t.toLowerCase(),this,s);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.graph.link("material",this,t),this}getMode(){return this.it}setMode(t){return this.it=t,this}listTargets(){return this.targets.map(t=>t.getChild())}addTarget(t){return this.addGraphChild(this.targets,this.graph.link("target",this,t)),this}removeTarget(t){return this.removeGraphChild(this.targets,t)}}o([a],D.prototype,"material",void 0),o([a],D.prototype,"indices",void 0),o([l],D.prototype,"attributes",void 0),o([l],D.prototype,"targets",void 0);class J extends b{constructor(){super(...arguments),this.propertyType=h.PRIMITIVE_TARGET,this.attributes=[]}copy(t,s=E){return super.copy(t,s),this.clearGraphChildList(this.attributes),t.listSemantics().forEach(e=>{this.setAttribute(e,s(t.getAttribute(e)))}),this}getAttribute(t){const s=this.attributes.find(s=>s.semantic===t);return s?s.getChild():null}setAttribute(t,s){const e=this.getAttribute(t);if(e&&this.removeGraphChild(this.attributes,e),!s)return this;const r=this.graph.linkAttribute(t.toLowerCase(),this,s);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)}}o([l],J.prototype,"attributes",void 0);class $ extends b{constructor(){super(...arguments),this.propertyType=h.ROOT,this.nt={generator:"glTF-Transform v0.7.2",version:"2.0"},this.ht=new Set,this.accessors=[],this.animations=[],this.buffers=[],this.cameras=[],this.materials=[],this.meshes=[],this.nodes=[],this.scenes=[],this.skins=[],this.textures=[]}clone(){throw new Error("Root cannot be cloned.")}copy(t,s=E){if(super.copy(t,s),!s)throw new Error("Root cannot be copied.");return Object.assign(this.nt,t.nt),t.accessors.forEach(t=>this.ot(s(t.getChild()))),t.animations.forEach(t=>this.ut(s(t.getChild()))),t.buffers.forEach(t=>this.ct(s(t.getChild()))),t.cameras.forEach(t=>this.at(s(t.getChild()))),t.materials.forEach(t=>this.lt(s(t.getChild()))),t.meshes.forEach(t=>this.ft(s(t.getChild()))),t.nodes.forEach(t=>this.dt(s(t.getChild()))),t.scenes.forEach(t=>this.pt(s(t.getChild()))),t.skins.forEach(t=>this.gt(s(t.getChild()))),t.textures.forEach(t=>this.wt(s(t.getChild()))),this}getAsset(){return this.nt}listExtensionsUsed(){return Array.from(this.ht)}listExtensionsRequired(){return this.listExtensionsUsed().filter(t=>t.isRequired())}vt(t){if(this.ht.has(t))throw new Error(`Extension "${t.extensionName}" is already enabled.`);return this.ht.add(t),this}xt(t){return this.ht.delete(t),this}pt(t){return this.addGraphChild(this.scenes,this.graph.link("scene",this,t))}listScenes(){return this.scenes.map(t=>t.getChild())}dt(t){return this.addGraphChild(this.nodes,this.graph.link("node",this,t))}listNodes(){return this.nodes.map(t=>t.getChild())}at(t){return this.addGraphChild(this.cameras,this.graph.link("camera",this,t))}listCameras(){return this.cameras.map(t=>t.getChild())}gt(t){return this.addGraphChild(this.skins,this.graph.link("skin",this,t))}listSkins(){return this.skins.map(t=>t.getChild())}ft(t){return this.addGraphChild(this.meshes,this.graph.link("mesh",this,t))}listMeshes(){return this.meshes.map(t=>t.getChild())}lt(t){return this.addGraphChild(this.materials,this.graph.link("material",this,t))}listMaterials(){return this.materials.map(t=>t.getChild())}wt(t){return this.addGraphChild(this.textures,this.graph.link("texture",this,t))}listTextures(){return this.textures.map(t=>t.getChild())}ut(t){return this.addGraphChild(this.animations,this.graph.link("animation",this,t))}listAnimations(){return this.animations.map(t=>t.getChild())}ot(t){return this.addGraphChild(this.accessors,this.graph.link("accessor",this,t))}listAccessors(){return this.accessors.map(t=>t.getChild())}ct(t){return this.addGraphChild(this.buffers,this.graph.link("buffer",this,t))}listBuffers(){return this.buffers.map(t=>t.getChild())}}o([l],$.prototype,"accessors",void 0),o([l],$.prototype,"animations",void 0),o([l],$.prototype,"buffers",void 0),o([l],$.prototype,"cameras",void 0),o([l],$.prototype,"materials",void 0),o([l],$.prototype,"meshes",void 0),o([l],$.prototype,"nodes",void 0),o([l],$.prototype,"scenes",void 0),o([l],$.prototype,"skins",void 0),o([l],$.prototype,"textures",void 0);class z extends S{constructor(){super(...arguments),this.propertyType=h.SCENE,this.children=[]}copy(t,s=E){return super.copy(t,s),s!==E&&(this.clearGraphChildList(this.children),t.children.forEach(t=>this.addChild(s(t.getChild())))),this}addChild(t){t.s&&t.s.removeChild(t);const s=this.graph.link("child",this,t);return this.addGraphChild(this.children,s),t.s=this,s.onDispose(()=>t.s=null),this}removeChild(t){return this.removeGraphChild(this.children,t)}listChildren(){return this.children.map(t=>t.getChild())}traverse(t){for(const s of this.listChildren())s.traverse(t);return this}}o([l],z.prototype,"children",void 0);class V extends S{constructor(){super(...arguments),this.propertyType=h.SKIN,this.skeleton=null,this.inverseBindMatrices=null,this.joints=[]}copy(t,s=E){return super.copy(t,s),t.skeleton&&this.setSkeleton(s(t.skeleton.getChild())),t.inverseBindMatrices&&this.setInverseBindMatrices(s(t.inverseBindMatrices.getChild())),this.clearGraphChildList(this.joints),t.joints.forEach(t=>this.addJoint(s(t.getChild()))),this}getSkeleton(){return this.skeleton?this.skeleton.getChild():null}setSkeleton(t){return this.skeleton=this.graph.link("skeleton",this,t),this}getInverseBindMatrices(){return this.inverseBindMatrices?this.inverseBindMatrices.getChild():null}setInverseBindMatrices(t){return this.inverseBindMatrices=this.graph.link("inverseBindMatrices",this,t),this}addJoint(t){const s=this.graph.link("joint",this,t);return this.addGraphChild(this.joints,s)}removeJoint(t){return this.removeGraphChild(this.joints,t)}listJoints(){return this.joints.map(t=>t.getChild())}}o([a],V.prototype,"skeleton",void 0),o([a],V.prototype,"inverseBindMatrices",void 0),o([l],V.prototype,"joints",void 0);class W extends S{constructor(){super(...arguments),this.propertyType=h.TEXTURE,this.yt=null,this.Tt="",this.C=""}copy(t,s=E){return super.copy(t,s),this.Tt=t.Tt,this.C=t.C,t.yt&&(this.yt=t.yt.slice(0)),this}getMimeType(){return this.Tt}setMimeType(t){return this.Tt=t,this}getURI(){return this.C}setURI(t){return this.C=t,this}getImage(){return this.yt}setImage(t){return this.yt=t,this}getSize(){let t;return t=this.Tt?"image/png"===this.Tt:this.C.match(/\.png$/),t?g.getSizePNG(this.yt):g.getSizeJPEG(this.yt)}}class q{constructor(){this.At=new k,this.Et=new $(this.At),this.bt=v.DEFAULT_INSTANCE}getRoot(){return this.Et}getGraph(){return this.At}getLogger(){return this.bt}setLogger(t){return this.bt=t,this}clone(){return(new q).merge(this)}merge(t){const s={};for(const e of t.getRoot().listExtensionsUsed()){const t=this.createExtension(e.constructor);e.isRequired()&&t.setRequired(!0),s[t.extensionName]=t}const e=new Set,r=new Map;e.add(t.Et),r.set(t.Et,this.Et);for(const i of t.At.getLinks())for(const t of[i.getParent(),i.getChild()]){if(e.has(t))continue;let i;if(t.propertyType===h.TEXTURE_INFO)i=t;else{const e=t.constructor;i=t instanceof L?new e(this.At,s[t.extensionName]):new e(this.At)}r.set(t,i),e.add(t)}const i=t=>r.get(t);for(const t of e)r.get(t).copy(t,i);return this}async transform(...t){for(const s of t)await s(this);return this}createExtension(t){return this.getRoot().listExtensionsUsed().find(s=>s.extensionName===t.EXTENSION_NAME)||new t(this)}createScene(t=""){const s=new z(this.At,t);return this.Et.pt(s),s}createNode(t=""){const s=new j(this.At,t);return this.Et.dt(s),s}createCamera(t=""){const s=new B(this.At,t);return this.Et.at(s),s}createSkin(t=""){const s=new V(this.At,t);return this.Et.gt(s),s}createMesh(t=""){const s=new G(this.At,t);return this.Et.ft(s),s}createPrimitive(){return new D(this.At)}createPrimitiveTarget(t=""){return new J(this.At,t)}createMaterial(t=""){const s=new F(this.At,t);return this.Et.lt(s),s}createTexture(t=""){const s=new W(this.At,t);return this.Et.wt(s),s}createAnimation(t=""){const s=new R(this.At,t);return this.Et.ut(s),s}createAnimationChannel(t=""){return new N(this.At,t)}createAnimationSampler(t=""){return new C(this.At,t)}createAccessor(t="",s=null){s||(s=this.getRoot().listBuffers()[0]);const e=new I(this.At,t).setBuffer(s);return this.Et.ot(e),e}createBuffer(t=""){const s=new _(this.At,t);return this.Et.ct(s),s}}class H{constructor(t){this.doc=t,this.provideTypes=[],this.dependencies=[],this.required=!1,this.properties=new Set,t.getRoot().vt(this)}dispose(){this.doc.getRoot().xt(this);for(const t of this.properties)t.dispose()}isRequired(){return this.required}setRequired(t){return this.required=t,this}addExtensionProperty(t){return this.properties.add(t),this}removeExtensionProperty(t){return this.properties.delete(t),this}install(t,s){return this}provide(t,s){return this}}class Y{constructor(t){this.jsonDoc=t,this.buffers=[],this.bufferViewBuffers=[],this.accessors=[],this.textures=[],this.textureInfos=new Map,this.materials=[],this.meshes=[],this.cameras=[],this.nodes=[],this.skins=[],this.animations=[],this.scenes=[]}setTextureInfo(t,s){this.textureInfos.set(t,s),void 0!==s.texCoord&&t.setTexCoord(s.texCoord);const e=this.jsonDoc.json.textures[s.index];if(void 0===e.sampler)return;const r=this.jsonDoc.json.samplers[e.sampler];void 0!==r.magFilter&&t.setMagFilter(r.magFilter),void 0!==r.minFilter&&t.setMinFilter(r.minFilter),void 0!==r.wrapS&&t.setWrapS(r.wrapS),void 0!==r.wrapT&&t.setWrapT(r.wrapT)}}const Z={5120:Int8Array,5121:Uint8Array,5122:Int16Array,5123:Uint16Array,5125:Uint32Array,5126:Float32Array},X={logger:v.DEFAULT_INSTANCE,extensions:[],dependencies:{}};class K{static read(t,i=X){const{json:n}=t,o=new q;this.validate(t,i);const u=new Y(t),c=t.json.asset,a=o.getRoot().getAsset();c.copyright&&(a.copyright=c.copyright),c.extras&&(a.extras=c.extras),c.generator&&(a.generator=c.generator),c.minVersion&&(a.minVersion=c.minVersion);const l=n.extensionsUsed||[],f=n.extensionsRequired||[];for(const t of i.extensions)if(l.includes(t.EXTENSION_NAME)){const s=o.createExtension(t).setRequired(f.includes(t.EXTENSION_NAME));for(const t of s.dependencies)s.install(t,i.dependencies[t])}u.buffers=(n.buffers||[]).map(t=>{const s=o.createBuffer(t.name);return t.extras&&s.setExtras(t.extras),t.uri&&0!==t.uri.indexOf("__")&&s.setURI(t.uri),s}),u.bufferViewBuffers=(n.bufferViews||[]).map(t=>u.buffers[t.buffer]),u.accessors=(n.accessors||[]).map(s=>{const e=o.createAccessor(s.name,u.bufferViewBuffers[s.bufferView]).setType(s.type);if(s.extras&&e.setExtras(s.extras),void 0!==s.normalized&&e.setNormalized(s.normalized),void 0===s.bufferView&&!s.sparse)return e;let r;return r=void 0!==s.sparse?function(t,s){const e=Z[t.componentType],r=I.getElementSize(t.type);let i;i=void 0!==t.bufferView?Q(t,s).slice():new e(t.count*r);const n=t.sparse.count,h={...t,...t.sparse.indices,count:n,type:"SCALAR"},o={...t,...t.sparse.values,count:n},u=Q(h,s),c=Q(o,s);for(let t=0;t<h.count;t++)for(let s=0;s<r;s++)i[u[t]*r+s]=c[t*r+s];return i}(s,t):Q(s,t).slice(),e.setArray(r),e});const d=n.images||[],w=n.textures||[];o.getRoot().listExtensionsUsed().filter(t=>t.provideTypes.includes(h.TEXTURE)).forEach(t=>t.provide(u,h.TEXTURE)),u.textures=d.map(s=>{const e=o.createTexture(s.name);if(s.extras&&e.setExtras(s.extras),void 0!==s.bufferView){const r=n.bufferViews[s.bufferView],i=t.json.buffers[r.buffer],h=r.byteOffset||0,o=(i.uri?t.resources[i.uri]:t.resources["@glb.bin"]).slice(h,h+r.byteLength);e.setImage(o)}else void 0!==s.uri&&(e.setImage(t.resources[s.uri]),0!==s.uri.indexOf("__")&&e.setURI(s.uri));if(void 0!==s.mimeType)e.setMimeType(s.mimeType);else if(s.uri){const t=p.extension(s.uri);e.setMimeType(g.extensionToMimeType(t))}return e}),u.materials=(n.materials||[]).map(t=>{const s=o.createMaterial(t.name);t.extras&&s.setExtras(t.extras),void 0!==t.alphaMode&&s.setAlphaMode(t.alphaMode),void 0!==t.alphaCutoff&&s.setAlphaCutoff(t.alphaCutoff),void 0!==t.doubleSided&&s.setDoubleSided(t.doubleSided);const e=t.pbrMetallicRoughness||{};if(void 0!==e.baseColorFactor&&s.setBaseColorFactor(e.baseColorFactor),void 0!==t.emissiveFactor&&s.setEmissiveFactor(t.emissiveFactor),void 0!==e.metallicFactor&&s.setMetallicFactor(e.metallicFactor),void 0!==e.roughnessFactor&&s.setRoughnessFactor(e.roughnessFactor),void 0!==e.baseColorTexture){const t=e.baseColorTexture;s.setBaseColorTexture(u.textures[w[t.index].source]),u.setTextureInfo(s.getBaseColorTextureInfo(),t)}if(void 0!==t.emissiveTexture){const e=t.emissiveTexture;s.setEmissiveTexture(u.textures[w[e.index].source]),u.setTextureInfo(s.getEmissiveTextureInfo(),e)}if(void 0!==t.normalTexture){const e=t.normalTexture;s.setNormalTexture(u.textures[w[e.index].source]),u.setTextureInfo(s.getNormalTextureInfo(),e),void 0!==t.normalTexture.scale&&s.setNormalScale(t.normalTexture.scale)}if(void 0!==t.occlusionTexture){const e=t.occlusionTexture;s.setOcclusionTexture(u.textures[w[e.index].source]),u.setTextureInfo(s.getOcclusionTextureInfo(),e),void 0!==t.occlusionTexture.strength&&s.setOcclusionStrength(t.occlusionTexture.strength)}if(void 0!==e.metallicRoughnessTexture){const t=e.metallicRoughnessTexture;s.setMetallicRoughnessTexture(u.textures[w[t.index].source]),u.setTextureInfo(s.getMetallicRoughnessTextureInfo(),t)}return s});const m=n.meshes||[];o.getRoot().listExtensionsUsed().filter(t=>t.provideTypes.includes(h.PRIMITIVE)).forEach(t=>t.provide(u,h.PRIMITIVE)),u.meshes=m.map(t=>{const s=o.createMesh(t.name);return t.extras&&s.setExtras(t.extras),void 0!==t.weights&&s.setWeights(t.weights),t.primitives.forEach(e=>{const r=o.createPrimitive();e.extras&&r.setExtras(e.extras),void 0!==e.material&&r.setMaterial(u.materials[e.material]),void 0!==e.mode&&r.setMode(e.mode);for(const[t,s]of Object.entries(e.attributes||{}))r.setAttribute(t,u.accessors[s]);void 0!==e.indices&&r.setIndices(u.accessors[e.indices]);const i=t.extras&&t.extras.targetNames||[];(e.targets||[]).forEach((t,s)=>{const e=i[s]||s.toString(),n=o.createPrimitiveTarget(e);for(const[s,e]of Object.entries(t))n.setAttribute(s,u.accessors[e]);r.addTarget(n)}),s.addPrimitive(r)}),s}),u.cameras=(n.cameras||[]).map(t=>{const s=o.createCamera(t.name).setType(t.type);return t.extras&&s.setExtras(t.extras),"perspective"===t.type?s.setZNear(t.perspective.znear).setZFar(t.perspective.zfar).setYFov(t.perspective.yfov).setAspectRatio(t.perspective.aspectRatio):s.setZNear(t.orthographic.znear).setZFar(t.orthographic.zfar).setXMag(t.orthographic.xmag).setYMag(t.orthographic.ymag),s});const v=n.nodes||[];return u.nodes=v.map(t=>{const i=o.createNode(t.name);return t.extras&&i.setExtras(t.extras),void 0!==t.translation&&i.setTranslation(t.translation),void 0!==t.rotation&&i.setRotation(t.rotation),void 0!==t.scale&&i.setScale(t.scale),void 0!==t.matrix&&(i.setTranslation(s([],t.matrix)),i.setRotation(e([],t.matrix)),i.setScale(r([],t.matrix))),void 0!==t.weights&&i.setWeights(t.weights),i}),u.skins=(n.skins||[]).map(t=>{const s=o.createSkin(t.name);t.extras&&s.setExtras(t.extras),void 0!==t.inverseBindMatrices&&s.setInverseBindMatrices(u.accessors[t.inverseBindMatrices]),void 0!==t.skeleton&&s.setSkeleton(u.nodes[t.skeleton]);for(const e of t.joints)s.addJoint(u.nodes[e]);return s}),v.map((t,s)=>{const e=u.nodes[s];(t.children||[]).forEach(t=>e.addChild(u.nodes[t])),void 0!==t.mesh&&e.setMesh(u.meshes[t.mesh]),void 0!==t.camera&&e.setCamera(u.cameras[t.camera]),void 0!==t.skin&&e.setSkin(u.skins[t.skin])}),u.animations=(n.animations||[]).map(t=>{const s=o.createAnimation(t.name);t.extras&&s.setExtras(t.extras);const e=(t.samplers||[]).map(t=>{const e=o.createAnimationSampler().setInput(u.accessors[t.input]).setOutput(u.accessors[t.output]).setInterpolation(t.interpolation||"LINEAR");return t.extras&&e.setExtras(t.extras),s.addSampler(e),e});return(t.channels||[]).forEach(t=>{const r=o.createAnimationChannel().setSampler(e[t.sampler]).setTargetNode(u.nodes[t.target.node]).setTargetPath(t.target.path);t.extras&&r.setExtras(t.extras),s.addChannel(r)}),s}),u.scenes=(n.scenes||[]).map(t=>{const s=o.createScene(t.name);return t.extras&&s.setExtras(t.extras),(t.nodes||[]).map(t=>u.nodes[t]).forEach(t=>s.addChild(t)),s}),o.getRoot().listExtensionsUsed().forEach(t=>t.read(u)),o}static validate(t,s){const e=t.json;if("2.0"!==e.asset.version)throw new Error(`Unsupported glTF version, "${e.asset.version}".`);if(e.extensionsRequired)for(const t of e.extensionsRequired)if(!s.extensions.find(s=>s.EXTENSION_NAME===t))throw new Error(`Missing required extension, "${t}".`);if(e.extensionsUsed)for(const t of e.extensionsUsed)s.extensions.find(s=>s.EXTENSION_NAME===t)||s.logger.warn(`Missing optional extension, "${t}".`)}}function Q(t,s){const e=s.json.bufferViews[t.bufferView],r=s.json.buffers[e.buffer],i=r.uri?s.resources[r.uri]:s.resources["@glb.bin"],n=Z[t.componentType],h=I.getElementSize(t.type);if(void 0!==e.byteStride&&e.byteStride!==h*n.BYTES_PER_ELEMENT)return function(t,s){const e=s.json.bufferViews[t.bufferView],r=s.json.buffers[e.buffer],i=r.uri?s.resources[r.uri]:s.resources["@glb.bin"],n=Z[t.componentType],h=I.getElementSize(t.type),o=n.BYTES_PER_ELEMENT,u=t.byteOffset||0,c=new n(t.count*h),a=new DataView(i,e.byteOffset,e.byteLength),l=e.byteStride;for(let s=0;s<t.count;s++)for(let e=0;e<h;e++){const r=u+s*l+e*o;let i;switch(t.componentType){case 5126:i=a.getFloat32(r,!0);break;case 5125:i=a.getUint32(r,!0);break;case 5123:i=a.getUint16(r,!0);break;case 5121:i=a.getUint8(r);break;case 5122:i=a.getInt16(r,!0);break;case 5120:i=a.getInt8(r);break;default:throw new Error(`Unexpected componentType "${t.componentType}".`)}c[s*h+e]=i}return c}(t,s);const o=(e.byteOffset||0)+(t.byteOffset||0);switch(t.componentType){case 5126:return new Float32Array(i,o,t.count*h);case 5125:return new Uint32Array(i,o,t.count*h);case 5123:return new Uint16Array(i,o,t.count*h);case 5121:return new Uint8Array(i,o,t.count*h);case 5122:return new Int16Array(i,o,t.count*h);case 5120:return new Int8Array(i,o,t.count*h);default:throw new Error(`Unexpected componentType "${t.componentType}".`)}}class tt{constructor(t,s){this.jsonDoc=t,this.options=s,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.textureInfoDefMap=new Map,this.samplerDefIndexMap=new Map,this.imageData=[]}createTextureInfoDef(t,s){const e={magFilter:s.getMagFilter()||void 0,minFilter:s.getMinFilter()||void 0,wrapS:s.getWrapS(),wrapT:s.getWrapT()},r=JSON.stringify(e);this.samplerDefIndexMap.has(r)||(this.samplerDefIndexMap.set(r,this.jsonDoc.json.samplers.length),this.jsonDoc.json.samplers.push(e));const i={source:this.imageIndexMap.get(t),sampler:this.samplerDefIndexMap.get(r)},n=JSON.stringify(i);this.textureDefIndexMap.has(n)||(this.textureDefIndexMap.set(n,this.jsonDoc.json.textures.length),this.jsonDoc.json.textures.push(i));const h={index:this.textureDefIndexMap.get(n),texCoord:s.getTexCoord()};return this.textureInfoDefMap.set(s,h),h}createPropertyDef(t){const s={};return t.getName()&&(s.name=t.getName()),Object.keys(t.getExtras()).length>0&&(s.extras=t.getExtras()),s}createAccessorDef(t){const s=this.createPropertyDef(t);return s.type=t.getType(),s.componentType=t.getComponentType(),s.count=t.getCount(),t.getMax(s.max=[]),t.getMin(s.min=[]),s.normalized=t.getNormalized(),s}createImageData(t,s,e){if(this.options.isGLB)this.imageData.push(s),t.bufferView=this.jsonDoc.json.bufferViews.length,this.jsonDoc.json.bufferViews.push({buffer:0,byteOffset:-1,byteLength:s.byteLength});else{const r=g.mimeTypeToExtension(e.getMimeType());t.uri=this.imageURIGenerator.createURI(e,r),this.jsonDoc.resources[t.uri]=s}}}class st{constructor(t,s){this.multiple=t,this.basename=s,this.counter=1}createURI(t,s){return t.getURI()?t.getURI():this.multiple?`${this.basename}_${this.counter++}.${s}`:`${this.basename}.${s}`}}const et={logger:v.DEFAULT_INSTANCE,basename:"",isGLB:!0};class rt{static write(t,s=et){const e=t.getRoot(),r={json:{asset:e.getAsset()},resources:{}},i=s.logger||v.DEFAULT_INSTANCE,n=r.json;n.asset.generator="glTF-Transform v0.7.2";const h=new tt(r,s),o=e.listBuffers().length,u=e.listTextures().length;function c(t,s,e,r){const i=[];let o=0;for(const s of t){const t=h.createAccessorDef(s);t.bufferView=n.bufferViews.length;const e=f.pad(s.getArray().buffer);t.byteOffset=o,o+=e.byteLength,i.push(e),h.accessorIndexMap.set(s,n.accessors.length),n.accessors.push(t)}const u={buffer:s,byteOffset:e,byteLength:f.concat(i).byteLength};return r&&(u.target=r),n.bufferViews.push(u),{buffers:i,byteLength:o}}function a(t,s,e){const r=t[0].getCount();let i=0;for(const s of t){const t=h.createAccessorDef(s);t.bufferView=n.bufferViews.length,t.byteOffset=i;const e=s.getElementSize(),r=s.getComponentSize();i+=f.padNumber(e*r),h.accessorIndexMap.set(s,n.accessors.length),n.accessors.push(t)}const o=r*i,u=new ArrayBuffer(o),c=new DataView(u);for(let s=0;s<r;s++){let e=0;for(const r of t){const t=r.getElementSize(),n=r.getComponentSize(),h=r.getComponentType(),o=r.getArray();for(let r=0;r<t;r++){const u=s*i+e+r*n,a=o[s*t+r];switch(h){case 5126:c.setFloat32(u,a,!0);break;case 5120:c.setInt8(u,a);break;case 5122:c.setInt16(u,a,!0);break;case 5121:c.setUint8(u,a);break;case 5123:c.setUint16(u,a,!0);break;case 5125:c.setUint32(u,a,!0);break;default:throw new Error("Unexpected component type: "+h)}}e+=f.padNumber(t*n)}}return n.bufferViews.push({buffer:s,byteOffset:e,byteLength:o,byteStride:i,target:34962}),{byteLength:o,buffers:[u]}}h.bufferURIGenerator=new st(o>1,s.basename),h.imageURIGenerator=new st(u>1,s.basename),h.logger=t.getLogger();const l=new Map;for(const s of t.getGraph().getLinks()){if(s.getParent()===e)continue;const t=s.getChild();if(t instanceof I){const e=l.get(t)||[];e.push(s),l.set(t,e)}}return n.accessors=[],n.bufferViews=[],n.samplers=[],n.textures=[],n.images=e.listTextures().map((t,s)=>{const e=h.createPropertyDef(t);return t.getMimeType()&&(e.mimeType=t.getMimeType()),t.getImage()&&h.createImageData(e,t.getImage(),t),h.imageIndexMap.set(t,s),e}),n.buffers=[],e.listBuffers().forEach(t=>{const e=h.createPropertyDef(t),i=new Map,o=new Set,u=new Set,d=new Set,p=t.listParents().filter(t=>!(t instanceof $));for(const t of p){if(!(t instanceof I))throw new Error("Unimplemented buffer reference: "+t);let s=!1,e=!1,r=!1,n=!1;const h=l.get(t)||[];for(const t of h)t instanceof O?s=!0:t instanceof U?e=!0:"inverseBindMatrices"===t.getName()?r=!0:n=!0;if(s||e||r||n||(n=!0),!s||e||r||n)if(!e||s||r||n)if(!r||s||e||n){if(!n||s||e||r)throw new Error("Attribute, index, or IBM accessors must be used only for that purpose.");d.add(t)}else u.add(t);else o.add(t);else{const s=h[0].getParent(),e=i.get(s)||new Set;e.add(t),i.set(s,e)}}const g=[],w=n.buffers.length;let m,v=0;if(o.size){const t=c(Array.from(o),w,v,34963);v+=t.byteLength,g.push(...t.buffers)}for(const t of Array.from(i.values()))if(t.size){const s=a(Array.from(t),w,v);v+=s.byteLength,g.push(...s.buffers)}if(u.size){const t=c(Array.from(u),w,v);v+=t.byteLength,g.push(...t.buffers)}if(d.size){const t=c(Array.from(d),w,v);v+=t.byteLength,g.push(...t.buffers)}if(h.imageData.length)for(let t=0;t<h.imageData.length;t++)n.bufferViews[n.images[t].bufferView].byteOffset=v,v+=h.imageData[t].byteLength,g.push(h.imageData[t]);v?(s.isGLB?m="@glb.bin":(m=h.bufferURIGenerator.createURI(t,"bin"),e.uri=m),e.byteLength=v,r.resources[m]=f.concat(g),n.buffers.push(e)):h.logger.warn(`@gltf-transform/core: Skipping empty buffer, "${t.getName()}".`)}),e.listAccessors().find(t=>!t.getBuffer())&&i.warn("Skipped writing one or more Accessors: no Buffer assigned."),n.materials=e.listMaterials().map((t,s)=>{const e=h.createPropertyDef(t);if(e.alphaMode=t.getAlphaMode(),"MASK"===t.getAlphaMode()&&(e.alphaCutoff=t.getAlphaCutoff()),e.doubleSided=t.getDoubleSided(),e.pbrMetallicRoughness={},e.pbrMetallicRoughness.baseColorFactor=t.getBaseColorFactor(),e.emissiveFactor=t.getEmissiveFactor(),e.pbrMetallicRoughness.roughnessFactor=t.getRoughnessFactor(),e.pbrMetallicRoughness.metallicFactor=t.getMetallicFactor(),t.getBaseColorTexture()){const s=t.getBaseColorTexture(),r=t.getBaseColorTextureInfo();e.pbrMetallicRoughness.baseColorTexture=h.createTextureInfoDef(s,r)}if(t.getEmissiveTexture()){const s=t.getEmissiveTexture(),r=t.getEmissiveTextureInfo();e.emissiveTexture=h.createTextureInfoDef(s,r)}if(t.getNormalTexture()){const s=t.getNormalTexture(),r=t.getNormalTextureInfo(),i=h.createTextureInfoDef(s,r);1!==t.getNormalScale()&&(i.scale=t.getNormalScale()),e.normalTexture=i}if(t.getOcclusionTexture()){const s=t.getOcclusionTexture(),r=t.getOcclusionTextureInfo(),i=h.createTextureInfoDef(s,r);1!==t.getOcclusionStrength()&&(i.strength=t.getOcclusionStrength()),e.occlusionTexture=i}if(t.getMetallicRoughnessTexture()){const s=t.getMetallicRoughnessTexture(),r=t.getMetallicRoughnessTextureInfo();e.pbrMetallicRoughness.metallicRoughnessTexture=h.createTextureInfoDef(s,r)}return h.materialIndexMap.set(t,s),e}),n.meshes=e.listMeshes().map((t,s)=>{const e=h.createPropertyDef(t);let r;return e.primitives=t.listPrimitives().map(t=>{const s={attributes:{}};s.material=h.materialIndexMap.get(t.getMaterial()),s.mode=t.getMode(),Object.keys(t.getExtras()).length&&(s.extras=t.getExtras()),t.getIndices()&&(s.indices=h.accessorIndexMap.get(t.getIndices()));for(const e of t.listSemantics())s.attributes[e]=h.accessorIndexMap.get(t.getAttribute(e));for(const e of t.listTargets()){const t={};for(const s of e.listSemantics())t[s]=h.accessorIndexMap.get(e.getAttribute(s));s.targets=s.targets||[],s.targets.push(t)}return t.listTargets().length&&!r&&(r=t.listTargets().map(t=>t.getName())),s}),t.getWeights().length&&(e.weights=t.getWeights()),r&&(e.extras=e.extras||{},e.extras.targetNames=r),h.meshIndexMap.set(t,s),e}),n.cameras=e.listCameras().map((t,s)=>{const e=h.createPropertyDef(t);return e.type=t.getType(),"perspective"===e.type?e.perspective={znear:t.getZNear(),zfar:t.getZFar(),yfov:t.getYFov(),aspectRatio:t.getAspectRatio()}:e.orthographic={znear:t.getZNear(),zfar:t.getZFar(),xmag:t.getXMag(),ymag:t.getYMag()},h.cameraIndexMap.set(t,s),e}),n.nodes=e.listNodes().map((t,s)=>{const e=h.createPropertyDef(t);return e.translation=t.getTranslation(),e.rotation=t.getRotation(),e.scale=t.getScale(),t.getWeights().length&&(e.weights=t.getWeights()),h.nodeIndexMap.set(t,s),e}),n.skins=e.listSkins().map((t,s)=>{const e=h.createPropertyDef(t);return t.getInverseBindMatrices()&&(e.inverseBindMatrices=h.accessorIndexMap.get(t.getInverseBindMatrices())),t.getSkeleton()&&(e.skeleton=h.nodeIndexMap.get(t.getSkeleton())),e.joints=t.listJoints().map(t=>h.nodeIndexMap.get(t)),h.skinIndexMap.set(t,s),e}),e.listNodes().forEach((t,s)=>{const e=n.nodes[s];t.getMesh()&&(e.mesh=h.meshIndexMap.get(t.getMesh())),t.getCamera()&&(e.camera=h.cameraIndexMap.get(t.getCamera())),t.getSkin()&&(e.skin=h.skinIndexMap.get(t.getSkin())),t.listChildren().length>0&&(e.children=t.listChildren().map(t=>h.nodeIndexMap.get(t)))}),n.animations=e.listAnimations().map(t=>{const s=h.createPropertyDef(t),e=new Map;return s.samplers=t.listSamplers().map((t,s)=>{const r=h.createPropertyDef(t);return r.input=h.accessorIndexMap.get(t.getInput()),r.output=h.accessorIndexMap.get(t.getOutput()),r.interpolation=t.getInterpolation(),e.set(t,s),r}),s.channels=t.listChannels().map(t=>{const s=h.createPropertyDef(t);return s.sampler=e.get(t.getSampler()),s.target={node:h.nodeIndexMap.get(t.getTargetNode()),path:t.getTargetPath()},s}),s}),n.scenes=e.listScenes().map(t=>{const s=h.createPropertyDef(t);return s.nodes=t.listChildren().map(t=>h.nodeIndexMap.get(t)),s}),n.extensionsUsed=e.listExtensionsUsed().map(t=>t.extensionName),n.extensionsRequired=e.listExtensionsRequired().map(t=>t.extensionName),e.listExtensionsUsed().forEach(t=>t.write(h)),function(t){const s=[];for(const e in t){const r=t[e];Array.isArray(r)&&0===r.length?s.push(e):null!==r&&""!==r||s.push(r)}for(const e of s)delete t[e]}(n),r}}class it{constructor(){this.bt=v.DEFAULT_INSTANCE,this.ht=[],this.Mt={}}setLogger(t){return this.bt=t,this}registerExtensions(t){return this.ht.push(...t),this}registerDependencies(t){return Object.assign(this.Mt,t),this}readJSON(t){return K.read(t,{extensions:this.ht,dependencies:this.Mt,logger:this.bt})}writeJSON(t,s){if(s.isGLB&&1!==t.getRoot().listBuffers().length)throw new Error("GLB must have exactly 1 buffer.");return rt.write(t,s)}binaryToJSON(t){const s=new Uint32Array(t,0,3);if(1179937895!==s[0])throw new Error("Invalid glTF asset.");if(2!==s[1])throw new Error(`Unsupported glTF binary version, "${s[1]}".`);const e=new Uint32Array(t,12,2),r=e[0],i=new Uint32Array(t,20+r,2);if(1313821514!==e[1]||5130562!==i[1])throw new Error("Unexpected GLB layout.");const n=f.decodeText(t.slice(20,20+r)),h=20+r+8;return{json:JSON.parse(n),resources:{"@glb.bin":t.slice(h,h+i[0])}}}readBinary(t){return this.readJSON(this.binaryToJSON(t))}writeBinary(t){const{json:s,resources:e}=this.writeJSON(t,{basename:"",isGLB:!0,logger:this.bt}),r=JSON.stringify(s),i=f.pad(f.encodeText(r),32),n=new Uint32Array([i.byteLength,1313821514]).buffer,h=f.concat([n,i]),o=f.pad(Object.values(e)[0]||new ArrayBuffer(0),0),u=new Uint32Array([o.byteLength,5130562]).buffer,c=f.concat([u,o]),a=new Uint32Array([1179937895,2,12+h.byteLength+c.byteLength]).buffer;return f.concat([a,h,c])}}class nt extends it{constructor(){super(),this.St=require("fs"),this.It=require("path")}read(t){const s=this.readAsJSON(t);return K.read(s,{extensions:this.ht,dependencies:this.Mt,logger:this.bt})}readAsJSON(t){return t.match(/\.glb$/)||t.match(/^data:application\/octet-stream;/)?this.Rt(t):this.Nt(t)}write(t,s){t.match(/\.glb$/)?this.Ct(t,s):this._t(t,s)}Rt(t){const s=this.St.readFileSync(t),e=f.trim(s);return this.binaryToJSON(e)}Nt(t){const s=this.It.dirname(t),e={json:JSON.parse(this.St.readFileSync(t,"utf8")),resources:{}};return[...e.json.images||[],...e.json.buffers||[]].forEach(t=>{if(t.uri)if(t.uri.match(/data:/)){const s=`__${A()}.${p.extension(t.uri)}`;e.resources[s]=f.createBufferFromDataURI(t.uri),t.uri=s}else{const r=this.It.resolve(s,t.uri);e.resources[t.uri]=f.trim(this.St.readFileSync(r))}}),e}_t(t,s){const{json:e,resources:r}=rt.write(s,{basename:p.basename(t),isGLB:!1,logger:this.bt}),{St:i,It:n}=this,h=n.dirname(t);i.writeFileSync(t,JSON.stringify(e,null,2)),Object.keys(r).forEach(t=>{const s=Buffer.from(r[t]);i.writeFileSync(n.join(h,t),s)})}Ct(t,s){const e=Buffer.from(this.writeBinary(s));this.St.writeFileSync(t,e)}}const ht={};class ot extends it{constructor(t=ht){super(),this.Bt=t}read(t){return this.readAsJSON(t).then(t=>this.readJSON(t))}readAsJSON(t){return t.match(/\.glb$/)||t.match(/^data:application\/octet-stream;/)?this.Rt(t):this.Nt(t)}Nt(t){const s={json:{},resources:{}};return fetch(t,this.Bt).then(t=>t.json()).then(t=>{s.json=t;const e=[...t.images||[],...t.buffers||[]].map(t=>{if(t.uri)return fetch(t.uri,this.Bt).then(t=>t.arrayBuffer()).then(e=>{s.resources[t.uri]=e})});return Promise.all(e).then(()=>s)})}Rt(t){return fetch(t,this.Bt).then(t=>t.arrayBuffer()).then(t=>this.binaryToJSON(t))}}export{I as Accessor,R as Animation,N as AnimationChannel,C as AnimationSampler,_ as Buffer,f as BufferUtils,E as COPY_IDENTITY,B as Camera,d as ColorUtils,q as Document,H as Extension,L as ExtensionProperty,p as FileUtils,n as GLB_BUFFER,c as Graph,a as GraphChild,g as ImageUtils,u as Link,v as Logger,F as Material,m as MathUtils,G as Mesh,j as Node,nt as NodeIO,D as Primitive,J as PrimitiveTarget,b as Property,h as PropertyType,Y as ReaderContext,$ as Root,z as Scene,V as Skin,W as Texture,P as TextureInfo,ot as WebIO,tt as WriterContext,A as uuid};
+import{fromRotationTranslationScale as t,getTranslation as s,getRotation as e,getScaling as r,multiply as i}from"gl-matrix/mat4";const n="@glb.bin";var h;function o(t,s,e,r){var i,n=arguments.length,h=n<3?s:null===r?r=Object.getOwnPropertyDescriptor(s,e):r;if("object"==typeof Reflect&&"function"==typeof Reflect.decorate)h=Reflect.decorate(t,s,e,r);else for(var o=t.length-1;o>=0;o--)(i=t[o])&&(h=(n<3?i(h):n>3?i(s,e,h):i(s,e))||h);return n>3&&h&&Object.defineProperty(s,e,h),h}!function(t){t.ACCESSOR="Accessor",t.ANIMATION="Animation",t.ANIMATION_CHANNEL="AnimationChannel",t.ANIMATION_SAMPLER="AnimationSampler",t.BUFFER="Buffer",t.CAMERA="Camera",t.MATERIAL="Material",t.MESH="Mesh",t.PRIMITIVE="Primitive",t.PRIMITIVE_TARGET="PrimitiveTarget",t.NODE="Node",t.ROOT="Root",t.SCENE="Scene",t.SKIN="Skin",t.TEXTURE="Texture",t.TEXTURE_INFO="TextureInfo"}(h||(h={}));class u{constructor(t,s,e){if(this.t=t,this.s=s,this.i=e,this.h=!1,this.o=[],!s.canLink(e))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}}const c=new Set;class a{constructor(){this.u=new Set,this.l=new Map,this.p=new Map}getLinks(){return Array.from(this.u)}listParents(t){const s=this.p.get(t)||c;return Array.from(s).map(t=>t.getParent())}listChildren(t){const s=this.l.get(t)||c;return Array.from(s).map(t=>t.getChild())}disconnectChildren(t){return(this.l.get(t)||c).forEach(t=>t.dispose()),this}disconnectParents(t,s){let e=Array.from(this.p.get(t)||c);return s&&(e=e.filter(t=>s(t.getParent()))),e.forEach(t=>t.dispose()),this}swapChild(t,s,e){const r=this.l.get(t)||c;return Array.from(r).filter(t=>t.getChild()===s).forEach(t=>{this.p.get(s).delete(t),t.setChild(e),this.p.has(e)||this.p.set(e,new Set),this.p.get(e).add(t)}),this}link(t,s,e){if(!e)return null;const r=new u(t,s,e);return this.registerLink(r),r}registerLink(t){this.u.add(t);const s=t.getParent();this.l.has(s)||this.l.set(s,new Set),this.l.get(s).add(t);const e=t.getChild();return this.p.has(e)||this.p.set(e,new Set),this.p.get(e).add(t),t.onDispose(()=>this.unlink(t)),t}unlink(t){return this.u.delete(t),this.l.get(t.getParent()).delete(t),this.p.get(t.getChild()).delete(t),this}}function l(t,s){Object.defineProperty(t,s,{get:function(){return this["__"+s]},set:function(t){const e=this["__"+s];e&&!Array.isArray(e)&&e.dispose(),t&&!Array.isArray(t)&&t.onDispose(()=>{this["__"+s]=null}),this["__"+s]=t},enumerable:!0})}function f(t,s){}class d{static createBufferFromDataURI(t){if("undefined"==typeof Buffer){const s=atob(t.split(",")[1]),e=new Uint8Array(s.length);for(let t=0;t<s.length;t++)e[t]=s.charCodeAt(t);return e.buffer}{const s=t.split(",")[1],e=t.indexOf("base64")>=0;return this.trim(Buffer.from(s,e?"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:s,byteLength:e}=t;return t.buffer.slice(s,s+e)}static concat(t){let s=0;for(const e of t)s+=e.byteLength;const e=new Uint8Array(s);let r=0;for(const s of t)e.set(new Uint8Array(s),r),r+=s.byteLength;return e.buffer}static pad(t,s=0){const e=this.padNumber(t.byteLength);if(e!==t.byteLength){const r=new Uint8Array(e);if(r.set(new Uint8Array(t)),0!==s)for(let i=t.byteLength;i<e;i++)r[i]=s;return r.buffer}return t}static padNumber(t){return 4*Math.ceil(t/4)}static equals(t,s){if(t===s)return!0;if(t.byteLength!==s.byteLength)return!1;const e=new DataView(t),r=new DataView(s);let i=t.byteLength;for(;i--;)if(e.getUint8(i)!==r.getUint8(i))return!1;return!0}}class p{static hexToFactor(t,s){return t=Math.floor(t),s[0]=(t>>16&255)/255,s[1]=(t>>8&255)/255,s[2]=(255&t)/255,this.convertSRGBToLinear(s,s)}static factorToHex(t){const s=[...t],[e,r,i]=this.convertLinearToSRGB(t,s);return 255*e<<16^255*r<<8^255*i<<0}static convertSRGBToLinear(t,s){for(let e=0;e<3;e++)s[e]=t[e]<.04045?.0773993808*t[e]:Math.pow(.9478672986*t[e]+.0521327014,2.4);return s}static convertLinearToSRGB(t,s){for(let e=0;e<3;e++)s[e]=t[e]<.0031308?12.92*t[e]:1.055*Math.pow(t[e],.41666)-.055;return s}}class g{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 w{static getSizeJPEG(t){let s,e,r=new DataView(t,4);for(;r.byteLength;){if(s=r.getUint16(0,!1),m(r,s),e=r.getUint8(s+1),192===e||193===e||194===e)return[r.getUint16(s+7,!1),r.getUint16(s+5,!1)];r=new DataView(t,r.byteOffset+s+2)}throw new TypeError("Invalid JPG, no size found")}static getSizePNG(t){const s=new DataView(t);return"CgBI"===d.decodeText(t.slice(12,16))?[s.getUint32(32,!1),s.getUint32(36,!1)]:[s.getUint32(16,!1),s.getUint32(20,!1)]}static mimeTypeToExtension(t){return"image/jpeg"===t?"jpg":t.split("/").pop()}static extensionToMimeType(t){return"jpg"===t?"image/jpeg":"image/"+t}}function m(t,s){if(s>t.byteLength)throw new TypeError("Corrupt JPG, exceeded buffer limits");if(255!==t.getUint8(s))throw new TypeError("Invalid JPG, marker table corrupted")}class v{static identity(t){return t}static denormalize(t,s){switch(s){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)}}static normalize(t,s){switch(s){case 5126:return t;case 5123:return Math.round(65535*t);case 5121:return Math.round(255*t);case 5122:return Math.round(32767*t);case 5120:return Math.round(127*t)}}}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},x.DEFAULT_INSTANCE=new x(x.Verbosity.INFO);const y="23456789abdegjkmnpqrvwxyzABDEGJKMNPQRVWXYZ",A=new Set,T=function(){let t="";for(let s=0;s<6;s++)t+=y.charAt(Math.floor(Math.random()*y.length));return t},E=function(){for(let t=0;t<999;t++){const t=T();if(!A.has(t))return A.add(t),t}},b=t=>t;class M extends class{constructor(t){this.h=!1,this.graph=t}canLink(t){return this.graph===t.graph}isDisposed(){return this.h}dispose(){this.graph.disconnectChildren(this),this.graph.disconnectParents(this),this.h=!0}detach(){return this.graph.disconnectParents(this),this}swap(t,s){return this.graph.swapChild(this,t,s),this}addGraphChild(t,s){return t.push(s),s.onDispose(()=>{const e=t.filter(t=>t!==s);t.length=0,t.push(...e)}),this}removeGraphChild(t,s){return t.filter(t=>t.getChild()===s).forEach(t=>t.dispose()),this}clearGraphChildList(t){for(;t.length>0;)t[0].dispose();return this}listGraphParents(){return this.graph.listParents(this)}}{constructor(t,s=""){super(t),this.g={},this.t="",this.t=s}getName(){return this.t}setName(t){return this.t=t,this}getExtras(){return this.g}setExtras(t){return this.g=t,this}clone(){return new(0,this.constructor)(this.graph).copy(this,b)}copy(t,s){return this.t=t.t,this.g=JSON.parse(JSON.stringify(t.g)),this}detach(){return this.graph.disconnectParents(this,t=>"Root"!==t.propertyType),this}listParents(){return this.listGraphParents()}}const S="Pass extension name (string) as lookup token, not a constructor.";class I extends M{constructor(){super(...arguments),this.extensions=[]}copy(t,s=b){return super.copy(t,s),this.clearGraphChildList(this.extensions),t.extensions.forEach(t=>{const e=t.getChild();this.setExtension(e.extensionName,s(e))}),this}getExtension(t){if("string"!=typeof t)throw new Error(S);const s=this.extensions.find(s=>s.getChild().extensionName===t);return s?s.getChild():null}setExtension(t,s){if("string"!=typeof t)throw new Error(S);const e=this.getExtension(t);return e&&this.removeGraphChild(this.extensions,e),s?(s.m(this),this.addGraphChild(this.extensions,this.graph.link(t,this,s))):this}listExtensions(){return this.extensions.map(t=>t.getChild())}}o([f],I.prototype,"extensions",void 0);class R extends I{constructor(){super(...arguments),this.propertyType=h.ACCESSOR,this.v=null,this.A="SCALAR",this.T=null,this.M=!1,this.S=v.identity,this.I=v.identity,this.buffer=null}copy(t,s=b){return super.copy(t,s),this.v=t.v.slice(),this.A=t.A,this.T=t.T,this.M=t.M,this.S=t.S,this.I=t.I,t.buffer&&this.setBuffer(s(t.buffer.getChild())),this}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 s=this.getElementSize();this.getMin(t);for(let e=0;e<s;e++)t[e]=this.I(t[e]);return t}getMin(t){const s=this.getCount(),e=this.getElementSize();for(let s=0;s<e;s++)t[s]=Infinity;for(let r=0;r<s*e;r+=e)for(let s=0;s<e;s++){const e=this.v[r+s];Number.isFinite(e)&&(t[s]=Math.min(t[s],e))}return t}getMaxNormalized(t){const s=this.getElementSize();this.getMax(t);for(let e=0;e<s;e++)t[e]=this.I(t[e]);return t}getMax(t){const s=this.getCount(),e=this.getElementSize();for(let s=0;s<e;s++)t[s]=-Infinity;for(let r=0;r<s*e;r+=e)for(let s=0;s<e;s++){const e=this.v[r+s];Number.isFinite(e)&&(t[s]=Math.max(t[s],e))}return t}getCount(){return this.v.length/this.getElementSize()}getType(){return this.A}setType(t){return this.A=t,this}getElementSize(){return R.getElementSize(this.A)}getComponentSize(){return this.v.BYTES_PER_ELEMENT}getComponentType(){return this.T}getNormalized(){return this.M}setNormalized(t){return this.M=t,t?(this.I=t=>v.denormalize(t,this.T),this.S=t=>v.normalize(t,this.T)):(this.I=v.identity,this.S=v.identity),this}getScalar(t){const s=this.getElementSize();return this.I(this.v[t*s])}setScalar(t,s){return this.v[t*this.getElementSize()]=this.S(s),this}getElement(t,s){const e=this.getElementSize();for(let r=0;r<e;r++)s[r]=this.I(this.v[t*e+r]);return s}setElement(t,s){const e=this.getElementSize();for(let r=0;r<e;r++)this.v[t*e+r]=this.S(s[r]);return this}getBuffer(){return this.buffer?this.buffer.getChild():null}setBuffer(t){return this.buffer=this.graph.link("buffer",this,t),this}getArray(){return this.v}setArray(t){return this.T=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.v=t,this}getByteLength(){return this.v.byteLength}}R.Type={SCALAR:"SCALAR",VEC2:"VEC2",VEC3:"VEC3",VEC4:"VEC4",MAT3:"MAT3",MAT4:"MAT4"},R.ComponentType={BYTE:5120,UNSIGNED_BYTE:5121,SHORT:5122,UNSIGNED_SHORT:5123,UNSIGNED_INT:5125,FLOAT:5126},o([l],R.prototype,"buffer",void 0);class C extends I{constructor(){super(...arguments),this.propertyType=h.ANIMATION,this.channels=[],this.samplers=[]}copy(t,s=b){return super.copy(t,s),this.clearGraphChildList(this.channels),this.clearGraphChildList(this.samplers),t.channels.forEach(t=>this.addChannel(s(t.getChild()))),t.samplers.forEach(t=>this.addSampler(s(t.getChild()))),this}addChannel(t){const s=this.graph.link("channel",this,t);return this.addGraphChild(this.channels,s)}removeChannel(t){return this.removeGraphChild(this.channels,t)}listChannels(){return this.channels.map(t=>t.getChild())}addSampler(t){const s=this.graph.link("sampler",this,t);return this.addGraphChild(this.samplers,s)}removeSampler(t){return this.removeGraphChild(this.samplers,t)}listSamplers(){return this.samplers.map(t=>t.getChild())}}o([f],C.prototype,"channels",void 0),o([f],C.prototype,"samplers",void 0);class N extends M{constructor(){super(...arguments),this.propertyType=h.ANIMATION_CHANNEL,this.R=null,this.targetNode=null,this.sampler=null}copy(t,s=b){return super.copy(t,s),this.R=t.R,t.targetNode&&this.setTargetNode(s(t.targetNode.getChild())),t.sampler&&this.setSampler(s(t.sampler.getChild())),this}getTargetPath(){return this.R}setTargetPath(t){return this.R=t,this}getTargetNode(){return this.targetNode?this.targetNode.getChild():null}setTargetNode(t){return this.targetNode=this.graph.link("target.node",this,t),this}getSampler(){return this.sampler?this.sampler.getChild():null}setSampler(t){return this.sampler=this.graph.link("sampler",this,t),this}}o([l],N.prototype,"targetNode",void 0),o([l],N.prototype,"sampler",void 0);class _ extends M{constructor(){super(...arguments),this.propertyType=h.ANIMATION_SAMPLER,this.C="LINEAR",this.input=null,this.output=null}copy(t,s=b){return super.copy(t,s),this.C=t.C,t.input&&this.setInput(s(t.input.getChild())),t.output&&this.setOutput(s(t.output.getChild())),this}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.graph.link("input",this,t),this}getOutput(){return this.output?this.output.getChild():null}setOutput(t){return this.output=this.graph.link("output",this,t),this}}o([l],_.prototype,"input",void 0),o([l],_.prototype,"output",void 0);class B extends I{constructor(){super(...arguments),this.propertyType=h.BUFFER}copy(t,s=b){return super.copy(t,s),this.N=t.N,this}getURI(){return this.N}setURI(t){return this.N=t,this}}class L extends I{constructor(){super(...arguments),this.propertyType=h.CAMERA,this.A="perspective"}copy(t,s=b){return super.copy(t,s),this.A=t.A,this._=t._,this.B=t.B,this.L=t.L,this.O=t.O,this.U=t.U,this.k=t.k,this}getType(){return this.A}setType(t){return this.A=t,this}getZNear(){return this._}setZNear(t){return this._=t,this}getZFar(){return this.B}setZFar(t){return this.B=t,this}getAspectRatio(){return this.L}setAspectRatio(t){return this.L=t,this}getYFov(){return this.O}setYFov(t){return this.O=t,this}getXMag(){return this.U}setXMag(t){return this.U=t,this}getYMag(){return this.k}setYMag(t){return this.k=t,this}}class O extends M{constructor(t,s){super(t),this.P=s,this.P.addExtensionProperty(this)}dispose(){this.P.removeExtensionProperty(this),super.dispose()}m(t){if(!this.parentTypes.includes(t.propertyType))throw new Error(`Parent "${t.propertyType}" invalid for child "${this.propertyType}".`)}}class U extends u{constructor(){super(...arguments),this.semantic=""}copy(t){return this.semantic=t.semantic,this}}class k extends u{copy(t){return this}}class P extends a{linkAttribute(t,s,e){if(!e)return null;const r=new U(t,s,e);return this.registerLink(r),r}linkIndex(t,s,e){if(!e)return null;const r=new k(t,s,e);return this.registerLink(r),r}}class F extends I{constructor(){super(...arguments),this.propertyType=h.TEXTURE_INFO,this.F=0,this.G=null,this.j=null,this.D=10497,this.J=10497}copy(t,s=b){return super.copy(t,s),this.F=t.F,this.G=t.G,this.j=t.j,this.D=t.D,this.J=t.J,this}getTexCoord(){return this.F}setTexCoord(t){return this.F=t,this}getMagFilter(){return this.G}setMagFilter(t){return this.G=t,this}getMinFilter(){return this.j}setMinFilter(t){return this.j=t,this}getWrapS(){return this.D}setWrapS(t){return this.D=t,this}getWrapT(){return this.J}setWrapT(t){return this.J=t,this}}F.TextureWrapMode={CLAMP_TO_EDGE:33071,MIRRORED_REPEAT:33648,REPEAT:10497},F.TextureMagFilter={NEAREST:9728,LINEAR:9729},F.TextureMinFilter={NEAREST:9728,LINEAR:9729,NEAREST_MIPMAP_NEAREST:9984,LINEAR_MIPMAP_NEAREST:9985,NEAREST_MIPMAP_LINEAR:9986,LINEAR_MIPMAP_LINEAR:9987};class G extends I{constructor(){super(...arguments),this.propertyType=h.MATERIAL,this.$="OPAQUE",this.V=.5,this.W=!1,this.q=[1,1,1,1],this.H=[0,0,0],this.Y=1,this.Z=1,this.X=1,this.K=1,this.baseColorTexture=null,this.baseColorTextureInfo=this.graph.link("baseColorTextureInfo",this,new F(this.graph)),this.emissiveTexture=null,this.emissiveTextureInfo=this.graph.link("emissiveTextureInfo",this,new F(this.graph)),this.normalTexture=null,this.normalTextureInfo=this.graph.link("normalTextureInfo",this,new F(this.graph)),this.occlusionTexture=null,this.occlusionTextureInfo=this.graph.link("occlusionTextureInfo",this,new F(this.graph)),this.metallicRoughnessTexture=null,this.metallicRoughnessTextureInfo=this.graph.link("metallicRoughnessTextureInfo",this,new F(this.graph))}copy(t,s=b){return super.copy(t,s),this.$=t.$,this.V=t.V,this.W=t.W,this.q=[...t.q],this.H=[...t.H],this.Y=t.Y,this.Z=t.Z,this.X=t.X,this.K=t.K,t.baseColorTexture&&(this.setBaseColorTexture(s(t.baseColorTexture.getChild())),this.getBaseColorTextureInfo().copy(s(t.baseColorTextureInfo.getChild()),s)),t.emissiveTexture&&(this.setEmissiveTexture(s(t.emissiveTexture.getChild())),this.getEmissiveTextureInfo().copy(s(t.emissiveTextureInfo.getChild()),s)),t.normalTexture&&(this.setNormalTexture(s(t.normalTexture.getChild())),this.getNormalTextureInfo().copy(s(t.normalTextureInfo.getChild()),s)),t.occlusionTexture&&(this.setOcclusionTexture(s(t.occlusionTexture.getChild())),this.getOcclusionTextureInfo().copy(s(t.occlusionTextureInfo.getChild()),s)),t.metallicRoughnessTexture&&(this.setMetallicRoughnessTexture(s(t.metallicRoughnessTexture.getChild())),this.getMetallicRoughnessTextureInfo().copy(s(t.metallicRoughnessTextureInfo.getChild()),s)),this}dispose(){this.baseColorTextureInfo.getChild().dispose(),this.emissiveTextureInfo.getChild().dispose(),this.normalTextureInfo.getChild().dispose(),this.occlusionTextureInfo.getChild().dispose(),this.metallicRoughnessTextureInfo.getChild().dispose(),super.dispose()}getDoubleSided(){return this.W}setDoubleSided(t){return this.W=t,this}getAlpha(){return this.q[3]}setAlpha(t){return this.q[3]=t,this}getAlphaMode(){return this.$}setAlphaMode(t){return this.$=t,this}getAlphaCutoff(){return this.V}setAlphaCutoff(t){return this.V=t,this}getBaseColorFactor(){return this.q}setBaseColorFactor(t){return this.q=t,this}getBaseColorHex(){return p.factorToHex(this.q)}setBaseColorHex(t){return p.hexToFactor(t,this.q),this}getBaseColorTexture(){return this.baseColorTexture?this.baseColorTexture.getChild():null}getBaseColorTextureInfo(){return this.baseColorTexture?this.baseColorTextureInfo.getChild():null}setBaseColorTexture(t){return this.baseColorTexture=this.graph.link("baseColorTexture",this,t),this}getEmissiveFactor(){return this.H}setEmissiveFactor(t){return this.H=t,this}getEmissiveHex(){return p.factorToHex(this.H)}setEmissiveHex(t){return p.hexToFactor(t,this.H),this}getEmissiveTexture(){return this.emissiveTexture?this.emissiveTexture.getChild():null}getEmissiveTextureInfo(){return this.emissiveTexture?this.emissiveTextureInfo.getChild():null}setEmissiveTexture(t){return this.emissiveTexture=this.graph.link("emissiveTexture",this,t),this}getNormalScale(){return this.Y}setNormalScale(t){return this.Y=t,this}getNormalTexture(){return this.normalTexture?this.normalTexture.getChild():null}getNormalTextureInfo(){return this.normalTexture?this.normalTextureInfo.getChild():null}setNormalTexture(t){return this.normalTexture=this.graph.link("normalTexture",this,t),this}getOcclusionStrength(){return this.Z}setOcclusionStrength(t){return this.Z=t,this}getOcclusionTexture(){return this.occlusionTexture?this.occlusionTexture.getChild():null}getOcclusionTextureInfo(){return this.occlusionTexture?this.occlusionTextureInfo.getChild():null}setOcclusionTexture(t){return this.occlusionTexture=this.graph.link("occlusionTexture",this,t),this}getRoughnessFactor(){return this.X}setRoughnessFactor(t){return this.X=t,this}getMetallicFactor(){return this.K}setMetallicFactor(t){return this.K=t,this}getMetallicRoughnessTexture(){return this.metallicRoughnessTexture?this.metallicRoughnessTexture.getChild():null}getMetallicRoughnessTextureInfo(){return this.metallicRoughnessTexture?this.metallicRoughnessTextureInfo.getChild():null}setMetallicRoughnessTexture(t){return this.metallicRoughnessTexture=this.graph.link("metallicRoughnessTexture",this,t),this}}o([l],G.prototype,"baseColorTexture",void 0),o([l],G.prototype,"baseColorTextureInfo",void 0),o([l],G.prototype,"emissiveTexture",void 0),o([l],G.prototype,"emissiveTextureInfo",void 0),o([l],G.prototype,"normalTexture",void 0),o([l],G.prototype,"normalTextureInfo",void 0),o([l],G.prototype,"occlusionTexture",void 0),o([l],G.prototype,"occlusionTextureInfo",void 0),o([l],G.prototype,"metallicRoughnessTexture",void 0),o([l],G.prototype,"metallicRoughnessTextureInfo",void 0);class j extends I{constructor(){super(...arguments),this.propertyType=h.MESH,this.tt=[],this.primitives=[]}copy(t,s=b){return super.copy(t,s),this.tt=[...t.tt],this.clearGraphChildList(this.primitives),t.primitives.forEach(t=>this.addPrimitive(s(t.getChild()))),this}addPrimitive(t){return this.addGraphChild(this.primitives,this.graph.link("primitive",this,t))}removePrimitive(t){return this.removeGraphChild(this.primitives,t)}listPrimitives(){return this.primitives.map(t=>t.getChild())}getWeights(){return this.tt}setWeights(t){return this.tt=t,this}}o([f],j.prototype,"primitives",void 0);class D extends I{constructor(){super(...arguments),this.propertyType=h.NODE,this.st=[0,0,0],this.et=[0,0,0,1],this.rt=[1,1,1],this.tt=[],this.s=null,this.camera=null,this.mesh=null,this.skin=null,this.children=[]}copy(t,s=b){return super.copy(t,s),this.st=[...t.st],this.et=[...t.et],this.rt=[...t.rt],this.tt=[...t.tt],t.camera&&this.setCamera(s(t.camera.getChild())),t.mesh&&this.setMesh(s(t.mesh.getChild())),t.skin&&this.setSkin(s(t.skin.getChild())),s!==b&&(this.clearGraphChildList(this.children),t.children.forEach(t=>this.addChild(s(t.getChild())))),this}getTranslation(){return this.st}getRotation(){return this.et}getScale(){return this.rt}setTranslation(t){return this.st=t,this}setRotation(t){return this.et=t,this}setScale(t){return this.rt=t,this}getMatrix(){return t([],this.et,this.st,this.rt)}getWorldTranslation(){return s([],this.getWorldMatrix())}getWorldRotation(){return e([],this.getWorldMatrix())}getWorldScale(){return r([],this.getWorldMatrix())}getWorldMatrix(){const t=[];for(let s=this;s instanceof D;s=s.s)t.push(s);let s;const e=t.pop().getMatrix();for(;s=t.pop();)i(e,e,s.getMatrix());return e}addChild(t){t.s&&t.s.removeChild(t);const s=this.graph.link("child",this,t);return this.addGraphChild(this.children,s),t.s=this,s.onDispose(()=>t.s=null),this}removeChild(t){return this.removeGraphChild(this.children,t)}listChildren(){return this.children.map(t=>t.getChild())}getParent(){return this.s}getMesh(){return this.mesh?this.mesh.getChild():null}setMesh(t){return this.mesh=this.graph.link("mesh",this,t),this}getCamera(){return this.camera?this.camera.getChild():null}setCamera(t){return this.camera=this.graph.link("camera",this,t),this}getSkin(){return this.skin?this.skin.getChild():null}setSkin(t){return this.skin=this.graph.link("skin",this,t),this}getWeights(){return this.tt}setWeights(t){return this.tt=t,this}traverse(t){t(this);for(const s of this.listChildren())s.traverse(t);return this}}o([l],D.prototype,"camera",void 0),o([l],D.prototype,"mesh",void 0),o([l],D.prototype,"skin",void 0),o([f],D.prototype,"children",void 0);class J extends M{constructor(){super(...arguments),this.propertyType=h.PRIMITIVE,this.it=4,this.material=null,this.indices=null,this.attributes=[],this.targets=[]}copy(t,s=b){return super.copy(t,s),this.it=t.it,t.indices&&this.setIndices(s(t.indices.getChild())),t.material&&this.setMaterial(s(t.material.getChild())),this.clearGraphChildList(this.attributes),t.listSemantics().forEach(e=>{this.setAttribute(e,s(t.getAttribute(e)))}),this.clearGraphChildList(this.targets),t.targets.forEach(t=>this.addTarget(s(t.getChild()))),this}getIndices(){return this.indices?this.indices.getChild():null}setIndices(t){return this.indices=this.graph.linkIndex("index",this,t),this}getAttribute(t){const s=this.attributes.find(s=>s.semantic===t);return s?s.getChild():null}setAttribute(t,s){const e=this.getAttribute(t);if(e&&this.removeGraphChild(this.attributes,e),!s)return this;const r=this.graph.linkAttribute(t.toLowerCase(),this,s);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.graph.link("material",this,t),this}getMode(){return this.it}setMode(t){return this.it=t,this}listTargets(){return this.targets.map(t=>t.getChild())}addTarget(t){return this.addGraphChild(this.targets,this.graph.link("target",this,t)),this}removeTarget(t){return this.removeGraphChild(this.targets,t)}}o([l],J.prototype,"material",void 0),o([l],J.prototype,"indices",void 0),o([f],J.prototype,"attributes",void 0),o([f],J.prototype,"targets",void 0);class $ extends M{constructor(){super(...arguments),this.propertyType=h.PRIMITIVE_TARGET,this.attributes=[]}copy(t,s=b){return super.copy(t,s),this.clearGraphChildList(this.attributes),t.listSemantics().forEach(e=>{this.setAttribute(e,s(t.getAttribute(e)))}),this}getAttribute(t){const s=this.attributes.find(s=>s.semantic===t);return s?s.getChild():null}setAttribute(t,s){const e=this.getAttribute(t);if(e&&this.removeGraphChild(this.attributes,e),!s)return this;const r=this.graph.linkAttribute(t.toLowerCase(),this,s);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)}}o([f],$.prototype,"attributes",void 0);class z extends M{constructor(){super(...arguments),this.propertyType=h.ROOT,this.nt={generator:"glTF-Transform v0.7.3",version:"2.0"},this.ht=new Set,this.accessors=[],this.animations=[],this.buffers=[],this.cameras=[],this.materials=[],this.meshes=[],this.nodes=[],this.scenes=[],this.skins=[],this.textures=[]}clone(){throw new Error("Root cannot be cloned.")}copy(t,s=b){if(super.copy(t,s),!s)throw new Error("Root cannot be copied.");return Object.assign(this.nt,t.nt),t.accessors.forEach(t=>this.ot(s(t.getChild()))),t.animations.forEach(t=>this.ut(s(t.getChild()))),t.buffers.forEach(t=>this.ct(s(t.getChild()))),t.cameras.forEach(t=>this.at(s(t.getChild()))),t.materials.forEach(t=>this.lt(s(t.getChild()))),t.meshes.forEach(t=>this.ft(s(t.getChild()))),t.nodes.forEach(t=>this.dt(s(t.getChild()))),t.scenes.forEach(t=>this.pt(s(t.getChild()))),t.skins.forEach(t=>this.gt(s(t.getChild()))),t.textures.forEach(t=>this.wt(s(t.getChild()))),this}getAsset(){return this.nt}listExtensionsUsed(){return Array.from(this.ht)}listExtensionsRequired(){return this.listExtensionsUsed().filter(t=>t.isRequired())}vt(t){if(this.ht.has(t))throw new Error(`Extension "${t.extensionName}" is already enabled.`);return this.ht.add(t),this}xt(t){return this.ht.delete(t),this}pt(t){return this.addGraphChild(this.scenes,this.graph.link("scene",this,t))}listScenes(){return this.scenes.map(t=>t.getChild())}dt(t){return this.addGraphChild(this.nodes,this.graph.link("node",this,t))}listNodes(){return this.nodes.map(t=>t.getChild())}at(t){return this.addGraphChild(this.cameras,this.graph.link("camera",this,t))}listCameras(){return this.cameras.map(t=>t.getChild())}gt(t){return this.addGraphChild(this.skins,this.graph.link("skin",this,t))}listSkins(){return this.skins.map(t=>t.getChild())}ft(t){return this.addGraphChild(this.meshes,this.graph.link("mesh",this,t))}listMeshes(){return this.meshes.map(t=>t.getChild())}lt(t){return this.addGraphChild(this.materials,this.graph.link("material",this,t))}listMaterials(){return this.materials.map(t=>t.getChild())}wt(t){return this.addGraphChild(this.textures,this.graph.link("texture",this,t))}listTextures(){return this.textures.map(t=>t.getChild())}ut(t){return this.addGraphChild(this.animations,this.graph.link("animation",this,t))}listAnimations(){return this.animations.map(t=>t.getChild())}ot(t){return this.addGraphChild(this.accessors,this.graph.link("accessor",this,t))}listAccessors(){return this.accessors.map(t=>t.getChild())}ct(t){return this.addGraphChild(this.buffers,this.graph.link("buffer",this,t))}listBuffers(){return this.buffers.map(t=>t.getChild())}}o([f],z.prototype,"accessors",void 0),o([f],z.prototype,"animations",void 0),o([f],z.prototype,"buffers",void 0),o([f],z.prototype,"cameras",void 0),o([f],z.prototype,"materials",void 0),o([f],z.prototype,"meshes",void 0),o([f],z.prototype,"nodes",void 0),o([f],z.prototype,"scenes",void 0),o([f],z.prototype,"skins",void 0),o([f],z.prototype,"textures",void 0);class V extends I{constructor(){super(...arguments),this.propertyType=h.SCENE,this.children=[]}copy(t,s=b){return super.copy(t,s),s!==b&&(this.clearGraphChildList(this.children),t.children.forEach(t=>this.addChild(s(t.getChild())))),this}addChild(t){t.s&&t.s.removeChild(t);const s=this.graph.link("child",this,t);return this.addGraphChild(this.children,s),t.s=this,s.onDispose(()=>t.s=null),this}removeChild(t){return this.removeGraphChild(this.children,t)}listChildren(){return this.children.map(t=>t.getChild())}traverse(t){for(const s of this.listChildren())s.traverse(t);return this}}o([f],V.prototype,"children",void 0);class W extends I{constructor(){super(...arguments),this.propertyType=h.SKIN,this.skeleton=null,this.inverseBindMatrices=null,this.joints=[]}copy(t,s=b){return super.copy(t,s),t.skeleton&&this.setSkeleton(s(t.skeleton.getChild())),t.inverseBindMatrices&&this.setInverseBindMatrices(s(t.inverseBindMatrices.getChild())),this.clearGraphChildList(this.joints),t.joints.forEach(t=>this.addJoint(s(t.getChild()))),this}getSkeleton(){return this.skeleton?this.skeleton.getChild():null}setSkeleton(t){return this.skeleton=this.graph.link("skeleton",this,t),this}getInverseBindMatrices(){return this.inverseBindMatrices?this.inverseBindMatrices.getChild():null}setInverseBindMatrices(t){return this.inverseBindMatrices=this.graph.link("inverseBindMatrices",this,t),this}addJoint(t){const s=this.graph.link("joint",this,t);return this.addGraphChild(this.joints,s)}removeJoint(t){return this.removeGraphChild(this.joints,t)}listJoints(){return this.joints.map(t=>t.getChild())}}o([l],W.prototype,"skeleton",void 0),o([l],W.prototype,"inverseBindMatrices",void 0),o([f],W.prototype,"joints",void 0);class q extends I{constructor(){super(...arguments),this.propertyType=h.TEXTURE,this.yt=null,this.At="",this.N=""}copy(t,s=b){return super.copy(t,s),this.At=t.At,this.N=t.N,t.yt&&(this.yt=t.yt.slice(0)),this}getMimeType(){return this.At}setMimeType(t){return this.At=t,this}getURI(){return this.N}setURI(t){return this.N=t,this}getImage(){return this.yt}setImage(t){return this.yt=t,this}getSize(){let t;return t=this.At?"image/png"===this.At:this.N.match(/\.png$/),t?w.getSizePNG(this.yt):w.getSizeJPEG(this.yt)}}class H{constructor(){this.Tt=new P,this.Et=new z(this.Tt),this.bt=x.DEFAULT_INSTANCE}getRoot(){return this.Et}getGraph(){return this.Tt}getLogger(){return this.bt}setLogger(t){return this.bt=t,this}clone(){return(new H).merge(this)}merge(t){const s={};for(const e of t.getRoot().listExtensionsUsed()){const t=this.createExtension(e.constructor);e.isRequired()&&t.setRequired(!0),s[t.extensionName]=t}const e=new Set,r=new Map;e.add(t.Et),r.set(t.Et,this.Et);for(const i of t.Tt.getLinks())for(const t of[i.getParent(),i.getChild()]){if(e.has(t))continue;let i;if(t.propertyType===h.TEXTURE_INFO)i=t;else{const e=t.constructor;i=t instanceof O?new e(this.Tt,s[t.extensionName]):new e(this.Tt)}r.set(t,i),e.add(t)}const i=t=>r.get(t);for(const t of e)r.get(t).copy(t,i);return this}async transform(...t){for(const s of t)await s(this);return this}createExtension(t){return this.getRoot().listExtensionsUsed().find(s=>s.extensionName===t.EXTENSION_NAME)||new t(this)}createScene(t=""){const s=new V(this.Tt,t);return this.Et.pt(s),s}createNode(t=""){const s=new D(this.Tt,t);return this.Et.dt(s),s}createCamera(t=""){const s=new L(this.Tt,t);return this.Et.at(s),s}createSkin(t=""){const s=new W(this.Tt,t);return this.Et.gt(s),s}createMesh(t=""){const s=new j(this.Tt,t);return this.Et.ft(s),s}createPrimitive(){return new J(this.Tt)}createPrimitiveTarget(t=""){return new $(this.Tt,t)}createMaterial(t=""){const s=new G(this.Tt,t);return this.Et.lt(s),s}createTexture(t=""){const s=new q(this.Tt,t);return this.Et.wt(s),s}createAnimation(t=""){const s=new C(this.Tt,t);return this.Et.ut(s),s}createAnimationChannel(t=""){return new N(this.Tt,t)}createAnimationSampler(t=""){return new _(this.Tt,t)}createAccessor(t="",s=null){s||(s=this.getRoot().listBuffers()[0]);const e=new R(this.Tt,t).setBuffer(s);return this.Et.ot(e),e}createBuffer(t=""){const s=new B(this.Tt,t);return this.Et.ct(s),s}}class Y{constructor(t){this.doc=t,this.provideTypes=[],this.dependencies=[],this.required=!1,this.properties=new Set,t.getRoot().vt(this)}dispose(){this.doc.getRoot().xt(this);for(const t of this.properties)t.dispose()}isRequired(){return this.required}setRequired(t){return this.required=t,this}addExtensionProperty(t){return this.properties.add(t),this}removeExtensionProperty(t){return this.properties.delete(t),this}install(t,s){return this}provide(t,s){return this}}class Z{constructor(t){this.jsonDoc=t,this.buffers=[],this.bufferViewBuffers=[],this.accessors=[],this.textures=[],this.textureInfos=new Map,this.materials=[],this.meshes=[],this.cameras=[],this.nodes=[],this.skins=[],this.animations=[],this.scenes=[]}setTextureInfo(t,s){this.textureInfos.set(t,s),void 0!==s.texCoord&&t.setTexCoord(s.texCoord);const e=this.jsonDoc.json.textures[s.index];if(void 0===e.sampler)return;const r=this.jsonDoc.json.samplers[e.sampler];void 0!==r.magFilter&&t.setMagFilter(r.magFilter),void 0!==r.minFilter&&t.setMinFilter(r.minFilter),void 0!==r.wrapS&&t.setWrapS(r.wrapS),void 0!==r.wrapT&&t.setWrapT(r.wrapT)}}const X={5120:Int8Array,5121:Uint8Array,5122:Int16Array,5123:Uint16Array,5125:Uint32Array,5126:Float32Array},K={logger:x.DEFAULT_INSTANCE,extensions:[],dependencies:{}};class Q{static read(t,i=K){const{json:n}=t,o=new H;this.validate(t,i);const u=new Z(t),c=t.json.asset,a=o.getRoot().getAsset();c.copyright&&(a.copyright=c.copyright),c.extras&&(a.extras=c.extras),c.generator&&(a.generator=c.generator),c.minVersion&&(a.minVersion=c.minVersion);const l=n.extensionsUsed||[],f=n.extensionsRequired||[];for(const t of i.extensions)if(l.includes(t.EXTENSION_NAME)){const s=o.createExtension(t).setRequired(f.includes(t.EXTENSION_NAME));for(const t of s.dependencies)s.install(t,i.dependencies[t])}u.buffers=(n.buffers||[]).map(t=>{const s=o.createBuffer(t.name);return t.extras&&s.setExtras(t.extras),t.uri&&0!==t.uri.indexOf("__")&&s.setURI(t.uri),s}),u.bufferViewBuffers=(n.bufferViews||[]).map(t=>u.buffers[t.buffer]),u.accessors=(n.accessors||[]).map(s=>{const e=o.createAccessor(s.name,u.bufferViewBuffers[s.bufferView]).setType(s.type);if(s.extras&&e.setExtras(s.extras),void 0!==s.normalized&&e.setNormalized(s.normalized),void 0===s.bufferView&&!s.sparse)return e;let r;return r=void 0!==s.sparse?function(t,s){const e=X[t.componentType],r=R.getElementSize(t.type);let i;i=void 0!==t.bufferView?tt(t,s).slice():new e(t.count*r);const n=t.sparse.count,h={...t,...t.sparse.indices,count:n,type:"SCALAR"},o={...t,...t.sparse.values,count:n},u=tt(h,s),c=tt(o,s);for(let t=0;t<h.count;t++)for(let s=0;s<r;s++)i[u[t]*r+s]=c[t*r+s];return i}(s,t):tt(s,t).slice(),e.setArray(r),e});const d=n.images||[],p=n.textures||[];o.getRoot().listExtensionsUsed().filter(t=>t.provideTypes.includes(h.TEXTURE)).forEach(t=>t.provide(u,h.TEXTURE)),u.textures=d.map(s=>{const e=o.createTexture(s.name);if(s.extras&&e.setExtras(s.extras),void 0!==s.bufferView){const r=n.bufferViews[s.bufferView],i=t.json.buffers[r.buffer],h=r.byteOffset||0,o=(i.uri?t.resources[i.uri]:t.resources["@glb.bin"]).slice(h,h+r.byteLength);e.setImage(o)}else void 0!==s.uri&&(e.setImage(t.resources[s.uri]),0!==s.uri.indexOf("__")&&e.setURI(s.uri));if(void 0!==s.mimeType)e.setMimeType(s.mimeType);else if(s.uri){const t=g.extension(s.uri);e.setMimeType(w.extensionToMimeType(t))}return e}),u.materials=(n.materials||[]).map(t=>{const s=o.createMaterial(t.name);t.extras&&s.setExtras(t.extras),void 0!==t.alphaMode&&s.setAlphaMode(t.alphaMode),void 0!==t.alphaCutoff&&s.setAlphaCutoff(t.alphaCutoff),void 0!==t.doubleSided&&s.setDoubleSided(t.doubleSided);const e=t.pbrMetallicRoughness||{};if(void 0!==e.baseColorFactor&&s.setBaseColorFactor(e.baseColorFactor),void 0!==t.emissiveFactor&&s.setEmissiveFactor(t.emissiveFactor),void 0!==e.metallicFactor&&s.setMetallicFactor(e.metallicFactor),void 0!==e.roughnessFactor&&s.setRoughnessFactor(e.roughnessFactor),void 0!==e.baseColorTexture){const t=e.baseColorTexture;s.setBaseColorTexture(u.textures[p[t.index].source]),u.setTextureInfo(s.getBaseColorTextureInfo(),t)}if(void 0!==t.emissiveTexture){const e=t.emissiveTexture;s.setEmissiveTexture(u.textures[p[e.index].source]),u.setTextureInfo(s.getEmissiveTextureInfo(),e)}if(void 0!==t.normalTexture){const e=t.normalTexture;s.setNormalTexture(u.textures[p[e.index].source]),u.setTextureInfo(s.getNormalTextureInfo(),e),void 0!==t.normalTexture.scale&&s.setNormalScale(t.normalTexture.scale)}if(void 0!==t.occlusionTexture){const e=t.occlusionTexture;s.setOcclusionTexture(u.textures[p[e.index].source]),u.setTextureInfo(s.getOcclusionTextureInfo(),e),void 0!==t.occlusionTexture.strength&&s.setOcclusionStrength(t.occlusionTexture.strength)}if(void 0!==e.metallicRoughnessTexture){const t=e.metallicRoughnessTexture;s.setMetallicRoughnessTexture(u.textures[p[t.index].source]),u.setTextureInfo(s.getMetallicRoughnessTextureInfo(),t)}return s});const m=n.meshes||[];o.getRoot().listExtensionsUsed().filter(t=>t.provideTypes.includes(h.PRIMITIVE)).forEach(t=>t.provide(u,h.PRIMITIVE)),u.meshes=m.map(t=>{const s=o.createMesh(t.name);return t.extras&&s.setExtras(t.extras),void 0!==t.weights&&s.setWeights(t.weights),t.primitives.forEach(e=>{const r=o.createPrimitive();e.extras&&r.setExtras(e.extras),void 0!==e.material&&r.setMaterial(u.materials[e.material]),void 0!==e.mode&&r.setMode(e.mode);for(const[t,s]of Object.entries(e.attributes||{}))r.setAttribute(t,u.accessors[s]);void 0!==e.indices&&r.setIndices(u.accessors[e.indices]);const i=t.extras&&t.extras.targetNames||[];(e.targets||[]).forEach((t,s)=>{const e=i[s]||s.toString(),n=o.createPrimitiveTarget(e);for(const[s,e]of Object.entries(t))n.setAttribute(s,u.accessors[e]);r.addTarget(n)}),s.addPrimitive(r)}),s}),u.cameras=(n.cameras||[]).map(t=>{const s=o.createCamera(t.name).setType(t.type);return t.extras&&s.setExtras(t.extras),"perspective"===t.type?s.setZNear(t.perspective.znear).setZFar(t.perspective.zfar).setYFov(t.perspective.yfov).setAspectRatio(t.perspective.aspectRatio):s.setZNear(t.orthographic.znear).setZFar(t.orthographic.zfar).setXMag(t.orthographic.xmag).setYMag(t.orthographic.ymag),s});const v=n.nodes||[];return u.nodes=v.map(t=>{const i=o.createNode(t.name);return t.extras&&i.setExtras(t.extras),void 0!==t.translation&&i.setTranslation(t.translation),void 0!==t.rotation&&i.setRotation(t.rotation),void 0!==t.scale&&i.setScale(t.scale),void 0!==t.matrix&&(i.setTranslation(s([],t.matrix)),i.setRotation(e([],t.matrix)),i.setScale(r([],t.matrix))),void 0!==t.weights&&i.setWeights(t.weights),i}),u.skins=(n.skins||[]).map(t=>{const s=o.createSkin(t.name);t.extras&&s.setExtras(t.extras),void 0!==t.inverseBindMatrices&&s.setInverseBindMatrices(u.accessors[t.inverseBindMatrices]),void 0!==t.skeleton&&s.setSkeleton(u.nodes[t.skeleton]);for(const e of t.joints)s.addJoint(u.nodes[e]);return s}),v.map((t,s)=>{const e=u.nodes[s];(t.children||[]).forEach(t=>e.addChild(u.nodes[t])),void 0!==t.mesh&&e.setMesh(u.meshes[t.mesh]),void 0!==t.camera&&e.setCamera(u.cameras[t.camera]),void 0!==t.skin&&e.setSkin(u.skins[t.skin])}),u.animations=(n.animations||[]).map(t=>{const s=o.createAnimation(t.name);t.extras&&s.setExtras(t.extras);const e=(t.samplers||[]).map(t=>{const e=o.createAnimationSampler().setInput(u.accessors[t.input]).setOutput(u.accessors[t.output]).setInterpolation(t.interpolation||"LINEAR");return t.extras&&e.setExtras(t.extras),s.addSampler(e),e});return(t.channels||[]).forEach(t=>{const r=o.createAnimationChannel().setSampler(e[t.sampler]).setTargetNode(u.nodes[t.target.node]).setTargetPath(t.target.path);t.extras&&r.setExtras(t.extras),s.addChannel(r)}),s}),u.scenes=(n.scenes||[]).map(t=>{const s=o.createScene(t.name);return t.extras&&s.setExtras(t.extras),(t.nodes||[]).map(t=>u.nodes[t]).forEach(t=>s.addChild(t)),s}),o.getRoot().listExtensionsUsed().forEach(t=>t.read(u)),o}static validate(t,s){const e=t.json;if("2.0"!==e.asset.version)throw new Error(`Unsupported glTF version, "${e.asset.version}".`);if(e.extensionsRequired)for(const t of e.extensionsRequired)if(!s.extensions.find(s=>s.EXTENSION_NAME===t))throw new Error(`Missing required extension, "${t}".`);if(e.extensionsUsed)for(const t of e.extensionsUsed)s.extensions.find(s=>s.EXTENSION_NAME===t)||s.logger.warn(`Missing optional extension, "${t}".`)}}function tt(t,s){const e=s.json.bufferViews[t.bufferView],r=s.json.buffers[e.buffer],i=r.uri?s.resources[r.uri]:s.resources["@glb.bin"],n=X[t.componentType],h=R.getElementSize(t.type);if(void 0!==e.byteStride&&e.byteStride!==h*n.BYTES_PER_ELEMENT)return function(t,s){const e=s.json.bufferViews[t.bufferView],r=s.json.buffers[e.buffer],i=r.uri?s.resources[r.uri]:s.resources["@glb.bin"],n=X[t.componentType],h=R.getElementSize(t.type),o=n.BYTES_PER_ELEMENT,u=t.byteOffset||0,c=new n(t.count*h),a=new DataView(i,e.byteOffset,e.byteLength),l=e.byteStride;for(let s=0;s<t.count;s++)for(let e=0;e<h;e++){const r=u+s*l+e*o;let i;switch(t.componentType){case 5126:i=a.getFloat32(r,!0);break;case 5125:i=a.getUint32(r,!0);break;case 5123:i=a.getUint16(r,!0);break;case 5121:i=a.getUint8(r);break;case 5122:i=a.getInt16(r,!0);break;case 5120:i=a.getInt8(r);break;default:throw new Error(`Unexpected componentType "${t.componentType}".`)}c[s*h+e]=i}return c}(t,s);const o=(e.byteOffset||0)+(t.byteOffset||0);switch(t.componentType){case 5126:return new Float32Array(i,o,t.count*h);case 5125:return new Uint32Array(i,o,t.count*h);case 5123:return new Uint16Array(i,o,t.count*h);case 5121:return new Uint8Array(i,o,t.count*h);case 5122:return new Int16Array(i,o,t.count*h);case 5120:return new Int8Array(i,o,t.count*h);default:throw new Error(`Unexpected componentType "${t.componentType}".`)}}class st{constructor(t,s){this.jsonDoc=t,this.options=s,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.textureInfoDefMap=new Map,this.samplerDefIndexMap=new Map,this.imageData=[]}createTextureInfoDef(t,s){const e={magFilter:s.getMagFilter()||void 0,minFilter:s.getMinFilter()||void 0,wrapS:s.getWrapS(),wrapT:s.getWrapT()},r=JSON.stringify(e);this.samplerDefIndexMap.has(r)||(this.samplerDefIndexMap.set(r,this.jsonDoc.json.samplers.length),this.jsonDoc.json.samplers.push(e));const i={source:this.imageIndexMap.get(t),sampler:this.samplerDefIndexMap.get(r)},n=JSON.stringify(i);this.textureDefIndexMap.has(n)||(this.textureDefIndexMap.set(n,this.jsonDoc.json.textures.length),this.jsonDoc.json.textures.push(i));const h={index:this.textureDefIndexMap.get(n),texCoord:s.getTexCoord()};return this.textureInfoDefMap.set(s,h),h}createPropertyDef(t){const s={};return t.getName()&&(s.name=t.getName()),Object.keys(t.getExtras()).length>0&&(s.extras=t.getExtras()),s}createAccessorDef(t){const s=this.createPropertyDef(t);return s.type=t.getType(),s.componentType=t.getComponentType(),s.count=t.getCount(),t.getMax(s.max=[]),t.getMin(s.min=[]),s.normalized=t.getNormalized(),s}createImageData(t,s,e){if(this.options.isGLB)this.imageData.push(s),t.bufferView=this.jsonDoc.json.bufferViews.length,this.jsonDoc.json.bufferViews.push({buffer:0,byteOffset:-1,byteLength:s.byteLength});else{const r=w.mimeTypeToExtension(e.getMimeType());t.uri=this.imageURIGenerator.createURI(e,r),this.jsonDoc.resources[t.uri]=s}}}class et{constructor(t,s){this.multiple=t,this.basename=s,this.counter=1}createURI(t,s){return t.getURI()?t.getURI():this.multiple?`${this.basename}_${this.counter++}.${s}`:`${this.basename}.${s}`}}const rt={logger:x.DEFAULT_INSTANCE,basename:"",isGLB:!0};class it{static write(t,s=rt){const e=t.getRoot(),r={json:{asset:e.getAsset()},resources:{}},i=s.logger||x.DEFAULT_INSTANCE,n=r.json;n.asset.generator="glTF-Transform v0.7.3";const h=new st(r,s),o=e.listBuffers().length,u=e.listTextures().length;function c(t,s,e,r){const i=[];let o=0;for(const s of t){const t=h.createAccessorDef(s);t.bufferView=n.bufferViews.length;const e=d.pad(s.getArray().buffer);t.byteOffset=o,o+=e.byteLength,i.push(e),h.accessorIndexMap.set(s,n.accessors.length),n.accessors.push(t)}const u={buffer:s,byteOffset:e,byteLength:d.concat(i).byteLength};return r&&(u.target=r),n.bufferViews.push(u),{buffers:i,byteLength:o}}function a(t,s,e){const r=t[0].getCount();let i=0;for(const s of t){const t=h.createAccessorDef(s);t.bufferView=n.bufferViews.length,t.byteOffset=i;const e=s.getElementSize(),r=s.getComponentSize();i+=d.padNumber(e*r),h.accessorIndexMap.set(s,n.accessors.length),n.accessors.push(t)}const o=r*i,u=new ArrayBuffer(o),c=new DataView(u);for(let s=0;s<r;s++){let e=0;for(const r of t){const t=r.getElementSize(),n=r.getComponentSize(),h=r.getComponentType(),o=r.getArray();for(let r=0;r<t;r++){const u=s*i+e+r*n,a=o[s*t+r];switch(h){case 5126:c.setFloat32(u,a,!0);break;case 5120:c.setInt8(u,a);break;case 5122:c.setInt16(u,a,!0);break;case 5121:c.setUint8(u,a);break;case 5123:c.setUint16(u,a,!0);break;case 5125:c.setUint32(u,a,!0);break;default:throw new Error("Unexpected component type: "+h)}}e+=d.padNumber(t*n)}}return n.bufferViews.push({buffer:s,byteOffset:e,byteLength:o,byteStride:i,target:34962}),{byteLength:o,buffers:[u]}}h.bufferURIGenerator=new et(o>1,s.basename),h.imageURIGenerator=new et(u>1,s.basename),h.logger=t.getLogger();const l=new Map;for(const s of t.getGraph().getLinks()){if(s.getParent()===e)continue;const t=s.getChild();if(t instanceof R){const e=l.get(t)||[];e.push(s),l.set(t,e)}}return n.accessors=[],n.bufferViews=[],n.samplers=[],n.textures=[],n.images=e.listTextures().map((t,s)=>{const e=h.createPropertyDef(t);return t.getMimeType()&&(e.mimeType=t.getMimeType()),t.getImage()&&h.createImageData(e,t.getImage(),t),h.imageIndexMap.set(t,s),e}),n.buffers=[],e.listBuffers().forEach(t=>{const e=h.createPropertyDef(t),i=new Map,o=new Set,u=new Set,f=new Set,p=t.listParents().filter(t=>!(t instanceof z));for(const t of p){if(!(t instanceof R))throw new Error("Unimplemented buffer reference: "+t);let s=!1,e=!1,r=!1,n=!1;const h=l.get(t)||[];for(const t of h)t instanceof U?s=!0:t instanceof k?e=!0:"inverseBindMatrices"===t.getName()?r=!0:n=!0;if(s||e||r||n||(n=!0),!s||e||r||n)if(!e||s||r||n)if(!r||s||e||n){if(!n||s||e||r)throw new Error("Attribute, index, or IBM accessors must be used only for that purpose.");f.add(t)}else u.add(t);else o.add(t);else{const s=h[0].getParent(),e=i.get(s)||new Set;e.add(t),i.set(s,e)}}const g=[],w=n.buffers.length;let m,v=0;if(o.size){const t=c(Array.from(o),w,v,34963);v+=t.byteLength,g.push(...t.buffers)}for(const t of Array.from(i.values()))if(t.size){const s=a(Array.from(t),w,v);v+=s.byteLength,g.push(...s.buffers)}if(u.size){const t=c(Array.from(u),w,v);v+=t.byteLength,g.push(...t.buffers)}if(f.size){const t=c(Array.from(f),w,v);v+=t.byteLength,g.push(...t.buffers)}if(h.imageData.length)for(let t=0;t<h.imageData.length;t++)n.bufferViews[n.images[t].bufferView].byteOffset=v,v+=h.imageData[t].byteLength,g.push(h.imageData[t]);v?(s.isGLB?m="@glb.bin":(m=h.bufferURIGenerator.createURI(t,"bin"),e.uri=m),e.byteLength=v,r.resources[m]=d.concat(g),n.buffers.push(e)):h.logger.warn(`@gltf-transform/core: Skipping empty buffer, "${t.getName()}".`)}),e.listAccessors().find(t=>!t.getBuffer())&&i.warn("Skipped writing one or more Accessors: no Buffer assigned."),n.materials=e.listMaterials().map((t,s)=>{const e=h.createPropertyDef(t);if(e.alphaMode=t.getAlphaMode(),"MASK"===t.getAlphaMode()&&(e.alphaCutoff=t.getAlphaCutoff()),e.doubleSided=t.getDoubleSided(),e.pbrMetallicRoughness={},e.pbrMetallicRoughness.baseColorFactor=t.getBaseColorFactor(),e.emissiveFactor=t.getEmissiveFactor(),e.pbrMetallicRoughness.roughnessFactor=t.getRoughnessFactor(),e.pbrMetallicRoughness.metallicFactor=t.getMetallicFactor(),t.getBaseColorTexture()){const s=t.getBaseColorTexture(),r=t.getBaseColorTextureInfo();e.pbrMetallicRoughness.baseColorTexture=h.createTextureInfoDef(s,r)}if(t.getEmissiveTexture()){const s=t.getEmissiveTexture(),r=t.getEmissiveTextureInfo();e.emissiveTexture=h.createTextureInfoDef(s,r)}if(t.getNormalTexture()){const s=t.getNormalTexture(),r=t.getNormalTextureInfo(),i=h.createTextureInfoDef(s,r);1!==t.getNormalScale()&&(i.scale=t.getNormalScale()),e.normalTexture=i}if(t.getOcclusionTexture()){const s=t.getOcclusionTexture(),r=t.getOcclusionTextureInfo(),i=h.createTextureInfoDef(s,r);1!==t.getOcclusionStrength()&&(i.strength=t.getOcclusionStrength()),e.occlusionTexture=i}if(t.getMetallicRoughnessTexture()){const s=t.getMetallicRoughnessTexture(),r=t.getMetallicRoughnessTextureInfo();e.pbrMetallicRoughness.metallicRoughnessTexture=h.createTextureInfoDef(s,r)}return h.materialIndexMap.set(t,s),e}),n.meshes=e.listMeshes().map((t,s)=>{const e=h.createPropertyDef(t);let r;return e.primitives=t.listPrimitives().map(t=>{const s={attributes:{}};s.material=h.materialIndexMap.get(t.getMaterial()),s.mode=t.getMode(),Object.keys(t.getExtras()).length&&(s.extras=t.getExtras()),t.getIndices()&&(s.indices=h.accessorIndexMap.get(t.getIndices()));for(const e of t.listSemantics())s.attributes[e]=h.accessorIndexMap.get(t.getAttribute(e));for(const e of t.listTargets()){const t={};for(const s of e.listSemantics())t[s]=h.accessorIndexMap.get(e.getAttribute(s));s.targets=s.targets||[],s.targets.push(t)}return t.listTargets().length&&!r&&(r=t.listTargets().map(t=>t.getName())),s}),t.getWeights().length&&(e.weights=t.getWeights()),r&&(e.extras=e.extras||{},e.extras.targetNames=r),h.meshIndexMap.set(t,s),e}),n.cameras=e.listCameras().map((t,s)=>{const e=h.createPropertyDef(t);return e.type=t.getType(),"perspective"===e.type?e.perspective={znear:t.getZNear(),zfar:t.getZFar(),yfov:t.getYFov(),aspectRatio:t.getAspectRatio()}:e.orthographic={znear:t.getZNear(),zfar:t.getZFar(),xmag:t.getXMag(),ymag:t.getYMag()},h.cameraIndexMap.set(t,s),e}),n.nodes=e.listNodes().map((t,s)=>{const e=h.createPropertyDef(t);return e.translation=t.getTranslation(),e.rotation=t.getRotation(),e.scale=t.getScale(),t.getWeights().length&&(e.weights=t.getWeights()),h.nodeIndexMap.set(t,s),e}),n.skins=e.listSkins().map((t,s)=>{const e=h.createPropertyDef(t);return t.getInverseBindMatrices()&&(e.inverseBindMatrices=h.accessorIndexMap.get(t.getInverseBindMatrices())),t.getSkeleton()&&(e.skeleton=h.nodeIndexMap.get(t.getSkeleton())),e.joints=t.listJoints().map(t=>h.nodeIndexMap.get(t)),h.skinIndexMap.set(t,s),e}),e.listNodes().forEach((t,s)=>{const e=n.nodes[s];t.getMesh()&&(e.mesh=h.meshIndexMap.get(t.getMesh())),t.getCamera()&&(e.camera=h.cameraIndexMap.get(t.getCamera())),t.getSkin()&&(e.skin=h.skinIndexMap.get(t.getSkin())),t.listChildren().length>0&&(e.children=t.listChildren().map(t=>h.nodeIndexMap.get(t)))}),n.animations=e.listAnimations().map(t=>{const s=h.createPropertyDef(t),e=new Map;return s.samplers=t.listSamplers().map((t,s)=>{const r=h.createPropertyDef(t);return r.input=h.accessorIndexMap.get(t.getInput()),r.output=h.accessorIndexMap.get(t.getOutput()),r.interpolation=t.getInterpolation(),e.set(t,s),r}),s.channels=t.listChannels().map(t=>{const s=h.createPropertyDef(t);return s.sampler=e.get(t.getSampler()),s.target={node:h.nodeIndexMap.get(t.getTargetNode()),path:t.getTargetPath()},s}),s}),n.scenes=e.listScenes().map(t=>{const s=h.createPropertyDef(t);return s.nodes=t.listChildren().map(t=>h.nodeIndexMap.get(t)),s}),n.extensionsUsed=e.listExtensionsUsed().map(t=>t.extensionName),n.extensionsRequired=e.listExtensionsRequired().map(t=>t.extensionName),e.listExtensionsUsed().forEach(t=>t.write(h)),function(t){const s=[];for(const e in t){const r=t[e];Array.isArray(r)&&0===r.length?s.push(e):null!==r&&""!==r||s.push(r)}for(const e of s)delete t[e]}(n),r}}class nt{constructor(){this.bt=x.DEFAULT_INSTANCE,this.ht=[],this.Mt={}}setLogger(t){return this.bt=t,this}registerExtensions(t){return this.ht.push(...t),this}registerDependencies(t){return Object.assign(this.Mt,t),this}readJSON(t){return Q.read(t,{extensions:this.ht,dependencies:this.Mt,logger:this.bt})}writeJSON(t,s){if(s.isGLB&&1!==t.getRoot().listBuffers().length)throw new Error("GLB must have exactly 1 buffer.");return it.write(t,s)}binaryToJSON(t){const s=new Uint32Array(t,0,3);if(1179937895!==s[0])throw new Error("Invalid glTF asset.");if(2!==s[1])throw new Error(`Unsupported glTF binary version, "${s[1]}".`);const e=new Uint32Array(t,12,2),r=e[0],i=new Uint32Array(t,20+r,2);if(1313821514!==e[1]||5130562!==i[1])throw new Error("Unexpected GLB layout.");const n=d.decodeText(t.slice(20,20+r)),h=20+r+8;return{json:JSON.parse(n),resources:{"@glb.bin":t.slice(h,h+i[0])}}}readBinary(t){return this.readJSON(this.binaryToJSON(t))}writeBinary(t){const{json:s,resources:e}=this.writeJSON(t,{basename:"",isGLB:!0,logger:this.bt}),r=JSON.stringify(s),i=d.pad(d.encodeText(r),32),n=new Uint32Array([i.byteLength,1313821514]).buffer,h=d.concat([n,i]),o=d.pad(Object.values(e)[0]||new ArrayBuffer(0),0),u=new Uint32Array([o.byteLength,5130562]).buffer,c=d.concat([u,o]),a=new Uint32Array([1179937895,2,12+h.byteLength+c.byteLength]).buffer;return d.concat([a,h,c])}}class ht extends nt{constructor(){super(),this.St=require("fs"),this.It=require("path")}read(t){const s=this.readAsJSON(t);return Q.read(s,{extensions:this.ht,dependencies:this.Mt,logger:this.bt})}readAsJSON(t){return t.match(/\.glb$/)||t.match(/^data:application\/octet-stream;/)?this.Rt(t):this.Ct(t)}write(t,s){t.match(/\.glb$/)?this.Nt(t,s):this._t(t,s)}Rt(t){const s=this.St.readFileSync(t),e=d.trim(s);return this.binaryToJSON(e)}Ct(t){const s=this.It.dirname(t),e={json:JSON.parse(this.St.readFileSync(t,"utf8")),resources:{}};return[...e.json.images||[],...e.json.buffers||[]].forEach(t=>{if(t.uri)if(t.uri.match(/data:/)){const s=`__${E()}.${g.extension(t.uri)}`;e.resources[s]=d.createBufferFromDataURI(t.uri),t.uri=s}else{const r=this.It.resolve(s,t.uri);e.resources[t.uri]=d.trim(this.St.readFileSync(r))}}),e}_t(t,s){const{json:e,resources:r}=it.write(s,{basename:g.basename(t),isGLB:!1,logger:this.bt}),{St:i,It:n}=this,h=n.dirname(t);i.writeFileSync(t,JSON.stringify(e,null,2)),Object.keys(r).forEach(t=>{const s=Buffer.from(r[t]);i.writeFileSync(n.join(h,t),s)})}Nt(t,s){const e=Buffer.from(this.writeBinary(s));this.St.writeFileSync(t,e)}}const ot={};class ut extends nt{constructor(t=ot){super(),this.Bt=t}read(t){return this.readAsJSON(t).then(t=>this.readJSON(t))}readAsJSON(t){return t.match(/\.glb$/)||t.match(/^data:application\/octet-stream;/)?this.Rt(t):this.Ct(t)}Ct(t){const s={json:{},resources:{}};return fetch(t,this.Bt).then(t=>t.json()).then(t=>{s.json=t;const e=[...t.images||[],...t.buffers||[]].map(t=>{if(t.uri)return fetch(t.uri,this.Bt).then(t=>t.arrayBuffer()).then(e=>{s.resources[t.uri]=e})});return Promise.all(e).then(()=>s)})}Rt(t){return fetch(t,this.Bt).then(t=>t.arrayBuffer()).then(t=>this.binaryToJSON(t))}}export{R as Accessor,C as Animation,N as AnimationChannel,_ as AnimationSampler,B as Buffer,d as BufferUtils,b as COPY_IDENTITY,L as Camera,p as ColorUtils,H as Document,Y as Extension,O as ExtensionProperty,g as FileUtils,n as GLB_BUFFER,a as Graph,l as GraphChild,w as ImageUtils,u as Link,x as Logger,G as Material,v as MathUtils,j as Mesh,D as Node,ht as NodeIO,J as Primitive,$ as PrimitiveTarget,M as Property,h as PropertyType,Z as ReaderContext,z as Root,V as Scene,W as Skin,q as Texture,F as TextureInfo,ut as WebIO,st as WriterContext,E as uuid};
 //# sourceMappingURL=core.modern.js.map

dist/graph/graph-links.d.ts

@@ -26,3 +26,9 @@ import { GraphNode } from './graph-node';
     getChild(): Child;
-    /** Sets the child node. */
+    /**
+     * Sets the child node.
+     *
+     * @internal Only {@link Graph} implementations may safely call this method directly. Use
+     * 	{@link Property.swap} or {@link Graph.swapChild} instead.
+     * @hidden
+     */
     setChild(child: Child): this;
@@ -29,0 +35,0 @@ /** Destroys a (currently intact) link, updating both the graph and the owner. */

dist/graph/graph.d.ts

@@ -19,2 +19,3 @@ import { Link } from './graph-links';
     disconnectParents(node: GraphNode, filter?: (n: GraphNode) => boolean): this;
+    swapChild(parent: GraphNode, prevChild: GraphNode, nextChild: GraphNode): this;
     /**
@@ -21,0 +22,0 @@ * Creates a link between two {@link GraphNode} instances. Link is returned

package.json

 {
   "name": "@gltf-transform/core",
-  "version": "0.7.2",
+  "version": "0.7.3",
   "repository": "github:donmccurdy/glTF-Transform",
@@ -42,3 +42,3 @@ "description": "glTF 2.0 SDK for JavaScript, TypeScript, and Node.js",
   },
-  "gitHead": "69fdd465707cb428d34dcc940a31c2cfebd54a32"
+  "gitHead": "4320ec99813721c975857fa9d25b13eaf3fb981f"
 }

src/graph/graph-links.ts

@@ -35,3 +35,9 @@ import { GraphNode } from './graph-node';
 
-	/** Sets the child node. */
+	/**
+	 * Sets the child node.
+	 *
+	 * @internal Only {@link Graph} implementations may safely call this method directly. Use
+	 * 	{@link Property.swap} or {@link Graph.swapChild} instead.
+	 * @hidden
+	 */
 	setChild(child: Child): this {
@@ -38,0 +44,0 @@ this._child = child;

src/graph/graph-node.ts

@@ -60,5 +60,3 @@ import { Graph } from './graph';
 	public swap(old: GraphNode, replacement: GraphNode): this {
-		this.graph.getLinks()
-			.filter((link) => link.getParent() === this && link.getChild() === old)
-			.forEach((link) => (link.setChild(replacement)));
+		this.graph.swapChild(this, old, replacement);
 		return this;
@@ -65,0 +63,0 @@ }

src/graph/graph.ts

 import { Link } from './graph-links';
 import { GraphNode } from './graph-node';
 
+const EMPTY_SET: Set<Link<GraphNode, GraphNode>> = new Set();
+
 /**
@@ -13,4 +15,4 @@ * A graph manages a network of {@link GraphNode} nodes, connected
 	private _links: Set<Link<GraphNode, GraphNode>> = new Set();
-	private _parentRefs: Map<GraphNode, Link<GraphNode, GraphNode>[]> = new Map();
-	private _childRefs: Map<GraphNode, Link<GraphNode, GraphNode>[]> = new Map();
+	private _parentRefs: Map<GraphNode, Set<Link<GraphNode, GraphNode>>> = new Map();
+	private _childRefs: Map<GraphNode, Set<Link<GraphNode, GraphNode>>> = new Map();
 
@@ -22,13 +24,13 @@ public getLinks(): Link<GraphNode, GraphNode>[] {
 	public listParents(node: GraphNode): GraphNode[] {
-		const links = this._childRefs.get(node) || [];
-		return links.map((link) => link.getParent());
+		const links = this._childRefs.get(node) || EMPTY_SET;
+		return Array.from(links).map((link) => link.getParent());
 	}
 
 	public listChildren(node: GraphNode): GraphNode[] {
-		const links = this._parentRefs.get(node) || [];
-		return links.map((link) => link.getChild());
+		const links = this._parentRefs.get(node) || EMPTY_SET;
+		return Array.from(links).map((link) => link.getChild());
 	}
 
 	public disconnectChildren(node: GraphNode): this {
-		const links = this._parentRefs.get(node) || [];
+		const links = this._parentRefs.get(node) || EMPTY_SET;
 		links.forEach((link) => link.dispose());
@@ -39,3 +41,3 @@ return this;
 	public disconnectParents(node: GraphNode, filter?: (n: GraphNode) => boolean): this {
-		let links = this._childRefs.get(node) || [];
+		let links = Array.from(this._childRefs.get(node) || EMPTY_SET);
 		if (filter) {
@@ -48,2 +50,16 @@ links = links.filter((link) => filter(link.getParent()));
 
+	public swapChild(parent: GraphNode, prevChild: GraphNode, nextChild: GraphNode): this {
+		const links = this._parentRefs.get(parent) || EMPTY_SET;
+		Array.from(links)
+			.filter((link) => link.getChild() === prevChild)
+			.forEach((link) => {
+				this._childRefs.get(prevChild).delete(link);
+
+				link.setChild(nextChild);
+				if (!this._childRefs.has(nextChild)) this._childRefs.set(nextChild, new Set());
+				this._childRefs.get(nextChild).add(link);
+			});
+		return this;
+	}
+
 	/**
@@ -68,8 +84,8 @@ * Creates a link between two {@link GraphNode} instances. Link is returned
 		const parent = link.getParent();
-		if (!this._parentRefs.has(parent)) this._parentRefs.set(parent, []);
-		this._parentRefs.get(parent).push(link);
+		if (!this._parentRefs.has(parent)) this._parentRefs.set(parent, new Set());
+		this._parentRefs.get(parent).add(link);
 
 		const child = link.getChild();
-		if (!this._childRefs.has(child)) this._childRefs.set(child, []);
-		this._childRefs.get(child).push(link);
+		if (!this._childRefs.has(child)) this._childRefs.set(child, new Set());
+		this._childRefs.get(child).add(link);
 
@@ -88,13 +104,6 @@ link.onDispose(() => this.unlink(link));
 		this._links.delete(link);
-
-		const parentRefs = this._parentRefs.get(link.getParent())
-			.filter((_link) => link !== _link);
-		this._parentRefs.set(link.getParent(), parentRefs);
-
-		const childRefs = this._childRefs.get(link.getChild())
-			.filter((_link) => link !== _link);
-		this._childRefs.set(link.getChild(), childRefs);
-
+		this._parentRefs.get(link.getParent()).delete(link);
+		this._childRefs.get(link.getChild()).delete(link);
 		return this;
 	}
 }

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