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@gltf-transform/core

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@gltf-transform/core - npm Package Compare versions

Comparing version 0.10.0 to 0.10.1

2

dist/core.modern.js

@@ -1,2 +0,2 @@

import{determinant as t,getRotation as s,multiply as e}from"gl-matrix/mat4";import{length as r}from"gl-matrix/vec3";const i="@glb.bin";var n,h,o;function u(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 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this.M?this.M.length/this.getElementSize():0}getType(){return this.S}setType(t){return this.S=t,this}getElementSize(){return N.getElementSize(this.S)}getComponentSize(){return this.M.BYTES_PER_ELEMENT}getComponentType(){return this.I}getNormalized(){return this.N}setNormalized(t){return this.N=t,t?(this._=t=>A.denormalize(t,this.I),this.C=t=>A.normalize(t,this.I)):(this._=A.identity,this.C=A.identity),this}getScalar(t){const s=this.getElementSize();return this._(this.M[t*s])}setScalar(t,s){return this.M[t*this.getElementSize()]=this.C(s),this}getElement(t,s){const e=this.getElementSize();for(let r=0;r<e;r++)s[r]=this._(this.M[t*e+r]);return s}setElement(t,s){const e=this.getElementSize();for(let r=0;r<e;r++)this.M[t*e+r]=this.C(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.M}setArray(t){return this.I=t?function(t){switch(t.constructor){case Float32Array:return 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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())}}u([f],C.prototype,"channels",void 0),u([f],C.prototype,"samplers",void 0);class _ extends b{constructor(){super(...arguments),this.propertyType=n.ANIMATION_CHANNEL,this.L=null,this.targetNode=null,this.sampler=null}copy(t,s=S){return super.copy(t,s),this.L=t.L,t.targetNode&&this.setTargetNode(s(t.targetNode.getChild())),t.sampler&&this.setSampler(s(t.sampler.getChild())),this}getTargetPath(){return this.L}setTargetPath(t){return this.L=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}}_.TargetPath={TRANSLATION:"translation",ROTATION:"rotation",SCALE:"scale",WEIGHTS:"weights"},u([l],_.prototype,"targetNode",void 0),u([l],_.prototype,"sampler",void 0);class L extends b{constructor(){super(...arguments),this.propertyType=n.ANIMATION_SAMPLER,this.O=L.Interpolation.LINEAR,this.input=null,this.output=null}copy(t,s=S){return super.copy(t,s),this.O=t.O,t.input&&this.setInput(s(t.input.getChild())),t.output&&this.setOutput(s(t.output.getChild())),this}getInterpolation(){return this.O}setInterpolation(t){return this.O=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}}L.Interpolation={LINEAR:"LINEAR",STEP:"STEP",CUBICSPLINE:"CUBICSPLINE"},u([l],L.prototype,"input",void 0),u([l],L.prototype,"output",void 0);class B extends I{constructor(){super(...arguments),this.propertyType=n.BUFFER,this.U=""}copy(t,s=S){return super.copy(t,s),this.U=t.U,this}getURI(){return this.U}setURI(t){return this.U=t,this}}class O extends I{constructor(){super(...arguments),this.propertyType=n.CAMERA,this.S=O.Type.PERSPECTIVE,this.P=.1,this.F=100,this.k=null,this.j=2*Math.PI*50/360,this.D=1,this.J=1}copy(t,s=S){return super.copy(t,s),this.S=t.S,this.P=t.P,this.F=t.F,this.k=t.k,this.j=t.j,this.D=t.D,this.J=t.J,this}getType(){return this.S}setType(t){return this.S=t,this}getZNear(){return this.P}setZNear(t){return this.P=t,this}getZFar(){return this.F}setZFar(t){return this.F=t,this}getAspectRatio(){return this.k}setAspectRatio(t){return this.k=t,this}getYFov(){return this.j}setYFov(t){return this.j=t,this}getXMag(){return this.D}setXMag(t){return this.D=t,this}getYMag(){return this.J}setYMag(t){return this.J=t,this}}O.Type={PERSPECTIVE:"perspective",ORTHOGRAPHIC:"orthographic"};class U extends b{constructor(t,s){super(t),this.$=s,this.$.addExtensionProperty(this)}dispose(){this.$.removeExtensionProperty(this),super.dispose()}T(t){if(!this.parentTypes.includes(t.propertyType))throw new Error(`Parent "${t.propertyType}" invalid for child "${this.propertyType}".`)}}class P extends c{constructor(){super(...arguments),this.semantic=""}copy(t){return this.semantic=t.semantic,this}}class F extends c{copy(t){return this}}class k extends c{constructor(){super(...arguments),this.channels=0}copy(t){return this.channels=t.channels,this}}class G extends a{linkAttribute(t,s,e){if(!e)return null;const r=new P(t,s,e);return r.semantic=t,this.registerLink(r),r}linkIndex(t,s,e){if(!e)return null;const r=new F(t,s,e);return this.registerLink(r),r}linkTexture(t,s,e,r){if(!r)return null;const i=new k(t,e,r);return i.channels=s,this.registerLink(i),i}}class j extends I{constructor(){super(...arguments),this.propertyType=n.TEXTURE_INFO,this.V=0,this.W=null,this.Y=null,this.H=j.WrapMode.REPEAT,this.q=j.WrapMode.REPEAT}copy(t,s=S){return super.copy(t,s),this.V=t.V,this.W=t.W,this.Y=t.Y,this.H=t.H,this.q=t.q,this}getTexCoord(){return this.V}setTexCoord(t){return this.V=t,this}getMagFilter(){return this.W}setMagFilter(t){return this.W=t,this}getMinFilter(){return this.Y}setMinFilter(t){return this.Y=t,this}getWrapS(){return this.H}setWrapS(t){return this.H=t,this}getWrapT(){return this.q}setWrapT(t){return this.q=t,this}}j.WrapMode={CLAMP_TO_EDGE:33071,MIRRORED_REPEAT:33648,REPEAT:10497},j.MagFilter={NEAREST:9728,LINEAR:9729},j.MinFilter={NEAREST:9728,LINEAR:9729,NEAREST_MIPMAP_NEAREST:9984,LINEAR_MIPMAP_NEAREST:9985,NEAREST_MIPMAP_LINEAR:9986,LINEAR_MIPMAP_LINEAR:9987};const{R:D,G:J,B:z,A:$}=o;class V extends I{constructor(){super(...arguments),this.propertyType=n.MATERIAL,this.Z=V.AlphaMode.OPAQUE,this.K=.5,this.X=!1,this.tt=[1,1,1,1],this.st=[0,0,0],this.et=1,this.rt=1,this.it=1,this.nt=1,this.baseColorTexture=null,this.baseColorTextureInfo=this.graph.link("baseColorTextureInfo",this,new j(this.graph)),this.emissiveTexture=null,this.emissiveTextureInfo=this.graph.link("emissiveTextureInfo",this,new j(this.graph)),this.normalTexture=null,this.normalTextureInfo=this.graph.link("normalTextureInfo",this,new j(this.graph)),this.occlusionTexture=null,this.occlusionTextureInfo=this.graph.link("occlusionTextureInfo",this,new j(this.graph)),this.metallicRoughnessTexture=null,this.metallicRoughnessTextureInfo=this.graph.link("metallicRoughnessTextureInfo",this,new j(this.graph))}copy(t,s=S){return super.copy(t,s),this.Z=t.Z,this.K=t.K,this.X=t.X,this.tt=[...t.tt],this.st=[...t.st],this.et=t.et,this.rt=t.rt,this.it=t.it,this.nt=t.nt,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.X}setDoubleSided(t){return this.X=t,this}getAlpha(){return this.tt[3]}setAlpha(t){return this.tt[3]=t,this}getAlphaMode(){return this.Z}setAlphaMode(t){return this.Z=t,this}getAlphaCutoff(){return this.K}setAlphaCutoff(t){return this.K=t,this}getBaseColorFactor(){return this.tt}setBaseColorFactor(t){return this.tt=t,this}getBaseColorHex(){return p.factorToHex(this.tt)}setBaseColorHex(t){return p.hexToFactor(t,this.tt),this}getBaseColorTexture(){return this.baseColorTexture?this.baseColorTexture.getChild():null}getBaseColorTextureInfo(){return this.baseColorTexture?this.baseColorTextureInfo.getChild():null}setBaseColorTexture(t){return this.baseColorTexture=this.graph.linkTexture("baseColorTexture",D|J|z|$,this,t),this}getEmissiveFactor(){return this.st}setEmissiveFactor(t){return this.st=t,this}getEmissiveHex(){return p.factorToHex(this.st)}setEmissiveHex(t){return p.hexToFactor(t,this.st),this}getEmissiveTexture(){return this.emissiveTexture?this.emissiveTexture.getChild():null}getEmissiveTextureInfo(){return this.emissiveTexture?this.emissiveTextureInfo.getChild():null}setEmissiveTexture(t){return this.emissiveTexture=this.graph.linkTexture("emissiveTexture",D|J|z,this,t),this}getNormalScale(){return this.et}setNormalScale(t){return this.et=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.linkTexture("normalTexture",D|J|z,this,t),this}getOcclusionStrength(){return this.rt}setOcclusionStrength(t){return this.rt=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.linkTexture("occlusionTexture",D,this,t),this}getRoughnessFactor(){return this.it}setRoughnessFactor(t){return this.it=t,this}getMetallicFactor(){return this.nt}setMetallicFactor(t){return this.nt=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.linkTexture("metallicRoughnessTexture",J|z,this,t),this}}V.AlphaMode={OPAQUE:"OPAQUE",MASK:"MASK",BLEND:"BLEND"},u([l],V.prototype,"baseColorTexture",void 0),u([l],V.prototype,"baseColorTextureInfo",void 0),u([l],V.prototype,"emissiveTexture",void 0),u([l],V.prototype,"emissiveTextureInfo",void 0),u([l],V.prototype,"normalTexture",void 0),u([l],V.prototype,"normalTextureInfo",void 0),u([l],V.prototype,"occlusionTexture",void 0),u([l],V.prototype,"occlusionTextureInfo",void 0),u([l],V.prototype,"metallicRoughnessTexture",void 0),u([l],V.prototype,"metallicRoughnessTextureInfo",void 0);class W extends I{constructor(){super(...arguments),this.propertyType=n.MESH,this.ht=[],this.primitives=[]}copy(t,s=S){return super.copy(t,s),this.ht=[...t.ht],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.ht}setWeights(t){return this.ht=t,this}}u([f],W.prototype,"primitives",void 0);class Y extends I{constructor(){super(...arguments),this.propertyType=n.NODE,this.ot=[0,0,0],this.ut=[0,0,0,1],this.ct=[1,1,1],this.ht=[],this.i=null,this.camera=null,this.mesh=null,this.skin=null,this.children=[]}copy(t,s=S){return super.copy(t,s),this.ot=[...t.ot],this.ut=[...t.ut],this.ct=[...t.ct],this.ht=[...t.ht],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!==S&&(this.clearGraphChildList(this.children),t.children.forEach(t=>this.addChild(s(t.getChild())))),this}getTranslation(){return this.ot}getRotation(){return this.ut}getScale(){return this.ct}setTranslation(t){return this.ot=t,this}setRotation(t){return this.ut=t,this}setScale(t){return this.ct=t,this}getMatrix(){return A.compose(this.ot,this.ut,this.ct,[])}getWorldTranslation(){const t=[0,0,0];return A.decompose(this.getWorldMatrix(),t,[0,0,0,1],[1,1,1]),t}getWorldRotation(){const t=[0,0,0,1];return A.decompose(this.getWorldMatrix(),[0,0,0],t,[1,1,1]),t}getWorldScale(){const t=[1,1,1];return A.decompose(this.getWorldMatrix(),[0,0,0],[0,0,0,1],t),t}getWorldMatrix(){const t=[];for(let s=this;s instanceof Y;s=s.i)t.push(s);let s;const r=t.pop().getMatrix();for(;s=t.pop();)e(r,r,s.getMatrix());return r}addChild(t){t.i&&t.i.removeChild(t);const s=this.graph.link("child",this,t);return this.addGraphChild(this.children,s),t.i=this,s.onDispose(()=>t.i=null),this}removeChild(t){return this.removeGraphChild(this.children,t)}listChildren(){return this.children.map(t=>t.getChild())}getParent(){return this.i}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.ht}setWeights(t){return this.ht=t,this}traverse(t){t(this);for(const s of this.listChildren())s.traverse(t);return this}}u([l],Y.prototype,"camera",void 0),u([l],Y.prototype,"mesh",void 0),u([l],Y.prototype,"skin",void 0),u([f],Y.prototype,"children",void 0);class H extends I{constructor(){super(...arguments),this.propertyType=n.PRIMITIVE,this.at=H.Mode.TRIANGLES,this.material=null,this.indices=null,this.attributes=[],this.targets=[]}copy(t,s=S){return super.copy(t,s),this.at=t.at,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,this,s);return 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.at}setMode(t){return this.at=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)}}H.Mode={POINTS:0,LINES:1,LINE_LOOP:2,LINE_STRIP:3,TRIANGLES:4,TRIANGLE_STRIP:5,TRIANGLE_FAN:6},u([l],H.prototype,"material",void 0),u([l],H.prototype,"indices",void 0),u([f],H.prototype,"attributes",void 0),u([f],H.prototype,"targets",void 0);class q extends b{constructor(){super(...arguments),this.propertyType=n.PRIMITIVE_TARGET,this.attributes=[]}copy(t,s=S){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)}}u([f],q.prototype,"attributes",void 0);class Z extends I{constructor(){super(...arguments),this.propertyType=n.SCENE,this.children=[]}copy(t,s=S){return super.copy(t,s),s!==S&&(this.clearGraphChildList(this.children),t.children.forEach(t=>this.addChild(s(t.getChild())))),this}addChild(t){t.i&&t.i.removeChild(t);const s=this.graph.link("child",this,t);return this.addGraphChild(this.children,s),t.i=this,s.onDispose(()=>t.i=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}}u([f],Z.prototype,"children",void 0);class K extends I{constructor(){super(...arguments),this.propertyType=n.SKIN,this.skeleton=null,this.inverseBindMatrices=null,this.joints=[]}copy(t,s=S){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())}}u([l],K.prototype,"skeleton",void 0),u([l],K.prototype,"inverseBindMatrices",void 0),u([f],K.prototype,"joints",void 0);class Q extends I{constructor(){super(...arguments),this.propertyType=n.TEXTURE,this.lt=null,this.ft="",this.U=""}copy(t,s=S){return super.copy(t,s),this.ft=t.ft,this.U=t.U,t.lt&&(this.lt=t.lt.slice(0)),this}getMimeType(){return this.ft||m.extensionToMimeType(g.extension(this.U))}setMimeType(t){return this.ft=t,this}getURI(){return this.U}setURI(t){return this.U=t,this.ft=m.extensionToMimeType(g.extension(t)),this}getImage(){return this.lt}setImage(t){return this.lt=t,this}getSize(){return this.lt?m.getSize(this.lt,this.getMimeType()):null}}class X extends b{constructor(t){super(t),this.propertyType=n.ROOT,this.dt={generator:"glTF-Transform v0.10.0",version:"2.0"},this.gt=new Set,this.accessors=[],this.animations=[],this.buffers=[],this.cameras=[],this.materials=[],this.meshes=[],this.nodes=[],this.scenes=[],this.skins=[],this.textures=[],t.on("clone",t=>this.wt(t))}clone(){throw new Error("Root cannot be cloned.")}copy(t,s=S){if(super.copy(t,s),s===S)throw new Error("Root cannot be copied.");return Object.assign(this.dt,t.dt),t.accessors.forEach(t=>this.vt(s(t.getChild()))),t.animations.forEach(t=>this.At(s(t.getChild()))),t.buffers.forEach(t=>this.Tt(s(t.getChild()))),t.cameras.forEach(t=>this.yt(s(t.getChild()))),t.materials.forEach(t=>this.xt(s(t.getChild()))),t.meshes.forEach(t=>this.Et(s(t.getChild()))),t.nodes.forEach(t=>this.Mt(s(t.getChild()))),t.scenes.forEach(t=>this.St(s(t.getChild()))),t.skins.forEach(t=>this.bt(s(t.getChild()))),t.textures.forEach(t=>this.Rt(s(t.getChild()))),this}wt(t){return t instanceof Z?this.St(t):t instanceof Y?this.Mt(t):t instanceof O?this.yt(t):t instanceof K?this.bt(t):t instanceof W?this.Et(t):t instanceof V?this.xt(t):t instanceof Q?this.Rt(t):t instanceof C?this.At(t):t instanceof N?this.vt(t):t instanceof B&&this.Tt(t),this}getAsset(){return this.dt}listExtensionsUsed(){return Array.from(this.gt)}listExtensionsRequired(){return this.listExtensionsUsed().filter(t=>t.isRequired())}It(t){return this.gt.add(t),this}Nt(t){return this.gt.delete(t),this}St(t){return this.addGraphChild(this.scenes,this.graph.link("scene",this,t))}listScenes(){return this.scenes.map(t=>t.getChild())}Mt(t){return this.addGraphChild(this.nodes,this.graph.link("node",this,t))}listNodes(){return this.nodes.map(t=>t.getChild())}yt(t){return this.addGraphChild(this.cameras,this.graph.link("camera",this,t))}listCameras(){return this.cameras.map(t=>t.getChild())}bt(t){return this.addGraphChild(this.skins,this.graph.link("skin",this,t))}listSkins(){return this.skins.map(t=>t.getChild())}Et(t){return this.addGraphChild(this.meshes,this.graph.link("mesh",this,t))}listMeshes(){return this.meshes.map(t=>t.getChild())}xt(t){return this.addGraphChild(this.materials,this.graph.link("material",this,t))}listMaterials(){return this.materials.map(t=>t.getChild())}Rt(t){return this.addGraphChild(this.textures,this.graph.link("texture",this,t))}listTextures(){return this.textures.map(t=>t.getChild())}At(t){return this.addGraphChild(this.animations,this.graph.link("animation",this,t))}listAnimations(){return this.animations.map(t=>t.getChild())}vt(t){return this.addGraphChild(this.accessors,this.graph.link("accessor",this,t))}listAccessors(){return this.accessors.map(t=>t.getChild())}Tt(t){return this.addGraphChild(this.buffers,this.graph.link("buffer",this,t))}listBuffers(){return this.buffers.map(t=>t.getChild())}}u([f],X.prototype,"accessors",void 0),u([f],X.prototype,"animations",void 0),u([f],X.prototype,"buffers",void 0),u([f],X.prototype,"cameras",void 0),u([f],X.prototype,"materials",void 0),u([f],X.prototype,"meshes",void 0),u([f],X.prototype,"nodes",void 0),u([f],X.prototype,"scenes",void 0),u([f],X.prototype,"skins",void 0),u([f],X.prototype,"textures",void 0);class tt{constructor(){this.Ct=new G,this._t=new X(this.Ct),this.Lt=T.DEFAULT_INSTANCE}getRoot(){return this._t}getGraph(){return this.Ct}getLogger(){return this.Lt}setLogger(t){return this.Lt=t,this}clone(){return(new tt).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._t),r.set(t._t,this._t);for(const i of t.Ct.getLinks())for(const t of[i.getParent(),i.getChild()]){if(e.has(t))continue;let i;if(t.propertyType===n.TEXTURE_INFO)i=t;else{const e=t.constructor;i=t instanceof U?new e(this.Ct,s[t.extensionName]):new e(this.Ct)}r.set(t,i),e.add(t)}const i=t=>{const s=r.get(t);if(!s)throw new Error("Could resolve property.");return s};for(const t of e){const s=r.get(t);if(!s)throw new Error("Could resolve property.");s.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.Ct,t);return this._t.St(s),s}createNode(t=""){const s=new Y(this.Ct,t);return this._t.Mt(s),s}createCamera(t=""){const s=new O(this.Ct,t);return this._t.yt(s),s}createSkin(t=""){const s=new K(this.Ct,t);return this._t.bt(s),s}createMesh(t=""){const s=new W(this.Ct,t);return this._t.Et(s),s}createPrimitive(){return new H(this.Ct)}createPrimitiveTarget(t=""){return new q(this.Ct,t)}createMaterial(t=""){const s=new V(this.Ct,t);return this._t.xt(s),s}createTexture(t=""){const s=new Q(this.Ct,t);return this._t.Rt(s),s}createAnimation(t=""){const s=new C(this.Ct,t);return this._t.At(s),s}createAnimationChannel(t=""){return new _(this.Ct,t)}createAnimationSampler(t=""){return new L(this.Ct,t)}createAccessor(t="",s=null){s||(s=this.getRoot().listBuffers()[0]);const e=new N(this.Ct,t).setBuffer(s);return this._t.vt(e),e}createBuffer(t=""){const s=new B(this.Ct,t);return this._t.Tt(s),s}}class st{constructor(t){this.doc=t,this.prereadTypes=[],this.prewriteTypes=[],this.dependencies=[],this.required=!1,this.properties=new Set,t.getRoot().It(this)}dispose(){this.doc.getRoot().Nt(this);for(const t of this.properties)t.dispose()}static register(){}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}preread(t,s){return this}prewrite(t,s){return this}}function et(){return(et=Object.assign||function(t){for(var s=1;s<arguments.length;s++){var e=arguments[s];for(var r in e)Object.prototype.hasOwnProperty.call(e,r)&&(t[r]=e[r])}return t}).apply(this,arguments)}class rt{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 it={5120:Int8Array,5121:Uint8Array,5122:Int16Array,5123:Uint16Array,5125:Uint32Array,5126:Float32Array},nt={logger:T.DEFAULT_INSTANCE,extensions:[],dependencies:{}};class ht{static read(t,s=nt){const{json:e}=t,r=new tt;this.validate(t,s);const i=new rt(t),h=t.json.asset,o=r.getRoot().getAsset();h.copyright&&(o.copyright=h.copyright),h.extras&&(o.extras=h.extras),h.generator&&(o.generator=h.generator),h.minVersion&&(o.minVersion=h.minVersion);const u=e.extensionsUsed||[],c=e.extensionsRequired||[];for(const t of s.extensions)if(u.includes(t.EXTENSION_NAME)){const e=r.createExtension(t).setRequired(c.includes(t.EXTENSION_NAME));for(const t of e.dependencies)e.install(t,s.dependencies[t])}i.buffers=(e.buffers||[]).map(t=>{const s=r.createBuffer(t.name);return t.extras&&s.setExtras(t.extras),t.uri&&0!==t.uri.indexOf("__")&&s.setURI(t.uri),s}),i.bufferViewBuffers=(e.bufferViews||[]).map(t=>i.buffers[t.buffer]),i.accessors=(e.accessors||[]).map(s=>{const e=r.createAccessor(s.name,i.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 n;return n=void 0!==s.sparse?function(t,s){const e=it[t.componentType],r=N.getElementSize(t.type);let i;i=void 0!==t.bufferView?ot(t,s).slice():new e(t.count*r);const n=t.sparse.count,h=et({},t,t.sparse.indices,{count:n,type:"SCALAR"}),o=et({},t,t.sparse.values,{count:n}),u=ot(h,s),c=ot(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):ot(s,t).slice(),e.setArray(n),e});const a=e.images||[],l=e.textures||[];r.getRoot().listExtensionsUsed().filter(t=>t.prereadTypes.includes(n.TEXTURE)).forEach(t=>t.preread(i,n.TEXTURE)),i.textures=a.map(s=>{const i=r.createTexture(s.name);if(s.extras&&i.setExtras(s.extras),void 0!==s.bufferView){const r=e.bufferViews[s.bufferView],n=t.json.buffers[r.buffer],h=r.byteOffset||0,o=(n.uri?t.resources[n.uri]:t.resources["@glb.bin"]).slice(h,h+r.byteLength);i.setImage(o)}else void 0!==s.uri&&(i.setImage(t.resources[s.uri]),0!==s.uri.indexOf("__")&&i.setURI(s.uri));if(void 0!==s.mimeType)i.setMimeType(s.mimeType);else if(s.uri){const t=g.extension(s.uri);i.setMimeType(m.extensionToMimeType(t))}return i}),i.materials=(e.materials||[]).map(t=>{const s=r.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(i.textures[l[t.index].source]),i.setTextureInfo(s.getBaseColorTextureInfo(),t)}if(void 0!==t.emissiveTexture){const e=t.emissiveTexture;s.setEmissiveTexture(i.textures[l[e.index].source]),i.setTextureInfo(s.getEmissiveTextureInfo(),e)}if(void 0!==t.normalTexture){const e=t.normalTexture;s.setNormalTexture(i.textures[l[e.index].source]),i.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(i.textures[l[e.index].source]),i.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(i.textures[l[t.index].source]),i.setTextureInfo(s.getMetallicRoughnessTextureInfo(),t)}return s});const f=e.meshes||[];r.getRoot().listExtensionsUsed().filter(t=>t.prereadTypes.includes(n.PRIMITIVE)).forEach(t=>t.preread(i,n.PRIMITIVE)),i.meshes=f.map(t=>{const s=r.createMesh(t.name);return t.extras&&s.setExtras(t.extras),void 0!==t.weights&&s.setWeights(t.weights),(t.primitives||[]).forEach(e=>{const n=r.createPrimitive();e.extras&&n.setExtras(e.extras),void 0!==e.material&&n.setMaterial(i.materials[e.material]),void 0!==e.mode&&n.setMode(e.mode);for(const[t,s]of Object.entries(e.attributes||{}))n.setAttribute(t,i.accessors[s]);void 0!==e.indices&&n.setIndices(i.accessors[e.indices]);const h=t.extras&&t.extras.targetNames||[];(e.targets||[]).forEach((t,s)=>{const e=h[s]||s.toString(),o=r.createPrimitiveTarget(e);for(const[s,e]of Object.entries(t))o.setAttribute(s,i.accessors[e]);n.addTarget(o)}),s.addPrimitive(n)}),s}),i.cameras=(e.cameras||[]).map(t=>{const s=r.createCamera(t.name).setType(t.type);return t.extras&&s.setExtras(t.extras),t.type===O.Type.PERSPECTIVE?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 d=e.nodes||[];return i.nodes=d.map(t=>{const s=r.createNode(t.name);if(t.extras&&s.setExtras(t.extras),void 0!==t.translation&&s.setTranslation(t.translation),void 0!==t.rotation&&s.setRotation(t.rotation),void 0!==t.scale&&s.setScale(t.scale),void 0!==t.matrix){const e=[0,0,0],r=[0,0,0,1],i=[1,1,1];A.decompose(t.matrix,e,r,i),s.setTranslation(e),s.setRotation(r),s.setScale(i)}return void 0!==t.weights&&s.setWeights(t.weights),s}),i.skins=(e.skins||[]).map(t=>{const s=r.createSkin(t.name);t.extras&&s.setExtras(t.extras),void 0!==t.inverseBindMatrices&&s.setInverseBindMatrices(i.accessors[t.inverseBindMatrices]),void 0!==t.skeleton&&s.setSkeleton(i.nodes[t.skeleton]);for(const e of t.joints)s.addJoint(i.nodes[e]);return s}),d.map((t,s)=>{const e=i.nodes[s];(t.children||[]).forEach(t=>e.addChild(i.nodes[t])),void 0!==t.mesh&&e.setMesh(i.meshes[t.mesh]),void 0!==t.camera&&e.setCamera(i.cameras[t.camera]),void 0!==t.skin&&e.setSkin(i.skins[t.skin])}),i.animations=(e.animations||[]).map(t=>{const s=r.createAnimation(t.name);t.extras&&s.setExtras(t.extras);const e=(t.samplers||[]).map(t=>{const e=r.createAnimationSampler().setInput(i.accessors[t.input]).setOutput(i.accessors[t.output]).setInterpolation(t.interpolation||L.Interpolation.LINEAR);return t.extras&&e.setExtras(t.extras),s.addSampler(e),e});return(t.channels||[]).forEach(t=>{const n=r.createAnimationChannel().setSampler(e[t.sampler]).setTargetNode(i.nodes[t.target.node]).setTargetPath(t.target.path);t.extras&&n.setExtras(t.extras),s.addChannel(n)}),s}),i.scenes=(e.scenes||[]).map(t=>{const s=r.createScene(t.name);return t.extras&&s.setExtras(t.extras),(t.nodes||[]).map(t=>i.nodes[t]).forEach(t=>s.addChild(t)),s}),r.getRoot().listExtensionsUsed().forEach(t=>t.read(i)),r}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 ot(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=it[t.componentType],h=N.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=it[t.componentType],h=N.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 N.ComponentType.FLOAT:i=a.getFloat32(r,!0);break;case N.ComponentType.UNSIGNED_INT:i=a.getUint32(r,!0);break;case N.ComponentType.UNSIGNED_SHORT:i=a.getUint16(r,!0);break;case N.ComponentType.UNSIGNED_BYTE:i=a.getUint8(r);break;case N.ComponentType.SHORT:i=a.getInt16(r,!0);break;case N.ComponentType.BYTE:i=a.getInt8(r);break;default:throw new Error(`Unexpected componentType "${t.componentType}".`)}c[s*h+e]=i}return c}(t,s);const o=(e.byteOffset||0)+(t.byteOffset||0);switch(t.componentType){case N.ComponentType.FLOAT:return new Float32Array(i,o,t.count*h);case N.ComponentType.UNSIGNED_INT:return new Uint32Array(i,o,t.count*h);case N.ComponentType.UNSIGNED_SHORT:return new Uint16Array(i,o,t.count*h);case N.ComponentType.UNSIGNED_BYTE:return new Uint8Array(i,o,t.count*h);case N.ComponentType.SHORT:return new Int16Array(i,o,t.count*h);case N.ComponentType.BYTE:return new Int8Array(i,o,t.count*h);default:throw new Error(`Unexpected componentType "${t.componentType}".`)}}class ut{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.imageBufferViews=[],this.otherBufferViews=new Map,this.otherBufferViewsIndexMap=new Map,this.extensionData={},this.Bt=new Map,this.accessorUsageGroupedByParent=new Set(["ARRAY_BUFFER"])}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.imageBufferViews.push(s),t.bufferView=this.jsonDoc.json.bufferViews.length,this.jsonDoc.json.bufferViews.push({buffer:0,byteOffset:-1,byteLength:s.byteLength});else{const r=m.mimeTypeToExtension(e.getMimeType());t.uri=this.imageURIGenerator.createURI(e,r),this.jsonDoc.resources[t.uri]=s}}getAccessorUsage(t){return this.Bt.get(t)}setAccessorUsage(t,s){const e=this.Bt.get(t);if(e&&e!==s)throw new Error(`Accessor with usage "${e}" cannot be reused as "${s}".`);return this.Bt.set(t,s),this}listAccessorsByUsage(){const t={};for(const[s,e]of Array.from(this.Bt.entries()))t[e]=t[e]||[],t[e].push(s);return t}}class ct{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 at={logger:T.DEFAULT_INSTANCE,basename:"",isGLB:!0,vertexLayout:h.INTERLEAVED,dependencies:{}};class lt{static write(t,s=at){const e=t.getRoot(),r={json:{asset:e.getAsset()},resources:{}},i=s.logger||T.DEFAULT_INSTANCE,o=r.json;o.asset.generator="glTF-Transform v0.10.0";const u=new ut(r,s),c=e.listBuffers().length,a=e.listTextures().length;u.bufferURIGenerator=new ct(c>1,s.basename),u.imageURIGenerator=new ct(a>1,s.basename),u.logger=t.getLogger();for(const e of t.getRoot().listExtensionsUsed())for(const t of e.dependencies)e.install(t,s.dependencies[t]);function l(t,s,e,r){const i=[];let n=0;for(const s of t){const t=u.createAccessorDef(s);t.bufferView=o.bufferViews.length;const e=d.pad(s.getArray().buffer);t.byteOffset=n,n+=e.byteLength,i.push(e),u.accessorIndexMap.set(s,o.accessors.length),o.accessors.push(t)}const h={buffer:s,byteOffset:e,byteLength:d.concat(i).byteLength};return r&&(h.target=r),o.bufferViews.push(h),{buffers:i,byteLength:n}}function f(t,s,e){const r=t[0].getCount();let i=0;for(const s of t){const t=u.createAccessorDef(s);t.bufferView=o.bufferViews.length,t.byteOffset=i;const e=s.getElementSize(),r=s.getComponentSize();i+=d.padNumber(e*r),u.accessorIndexMap.set(s,o.accessors.length),o.accessors.push(t)}const n=r*i,h=new ArrayBuffer(n),c=new DataView(h);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 N.ComponentType.FLOAT:c.setFloat32(u,a,!0);break;case N.ComponentType.BYTE:c.setInt8(u,a);break;case N.ComponentType.SHORT:c.setInt16(u,a,!0);break;case N.ComponentType.UNSIGNED_BYTE:c.setUint8(u,a);break;case N.ComponentType.UNSIGNED_SHORT:c.setUint16(u,a,!0);break;case N.ComponentType.UNSIGNED_INT:c.setUint32(u,a,!0);break;default:throw new Error("Unexpected component type: "+h)}}e+=d.padNumber(t*n)}}return o.bufferViews.push({buffer:s,byteOffset:e,byteLength:n,byteStride:i,target:34962}),{byteLength:n,buffers:[h]}}const p=new Map;for(const s of t.getGraph().getLinks()){if(s.getParent()===e)continue;const t=s.getChild();if(t instanceof N){const e=p.get(t)||[];e.push(s),p.set(t,e)}}return o.accessors=[],o.bufferViews=[],o.samplers=[],o.textures=[],o.images=e.listTextures().map((t,s)=>{const e=u.createPropertyDef(t);return t.getMimeType()&&(e.mimeType=t.getMimeType()),t.getImage()&&u.createImageData(e,t.getImage(),t),u.imageIndexMap.set(t,s),e}),t.getRoot().listExtensionsUsed().filter(t=>t.prewriteTypes.includes(n.ACCESSOR)).forEach(t=>t.prewrite(u,n.ACCESSOR)),o.buffers=[],e.listBuffers().forEach(t=>{const e=u.createPropertyDef(t),i=u.accessorUsageGroupedByParent,n=new Map,c=t.listParents().filter(t=>t instanceof N),a=new Set(c);for(const t of c){if(u.accessorIndexMap.has(t))continue;const s=p.get(t)||[];for(const e of s){if(u.getAccessorUsage(t))break;e instanceof P?u.setAccessorUsage(t,"ARRAY_BUFFER"):e instanceof F?u.setAccessorUsage(t,"ELEMENT_ARRAY_BUFFER"):"inverseBindMatrices"===e.getName()&&u.setAccessorUsage(t,"INVERSE_BIND_MATRICES")}if(u.getAccessorUsage(t)||u.setAccessorUsage(t,"OTHER"),i.has(u.getAccessorUsage(t))){const e=s[0].getParent(),r=n.get(e)||new Set;r.add(t),n.set(e,r)}}const g=[],w=o.buffers.length;let m=0;const v=u.listAccessorsByUsage();for(const t in v)if(i.has(t))for(const e of Array.from(n.values())){const r=Array.from(e).filter(t=>a.has(t)).filter(s=>u.getAccessorUsage(s)===t);if(r.length)if("ARRAY_BUFFER"!==t||s.vertexLayout===h.INTERLEAVED){const s="ARRAY_BUFFER"===t?f(r,w,m):l(r,w,m);m+=s.byteLength,g.push(...s.buffers)}else for(const t of r){const s=f([t],w,m);m+=s.byteLength,g.push(...s.buffers)}}else{const s=v[t].filter(t=>a.has(t));if(!s.length)continue;const e=l(s,w,m,"ELEMENT_ARRAY_BUFFER"===t?34963:null);m+=e.byteLength,g.push(...e.buffers)}if(u.imageBufferViews.length)for(let t=0;t<u.imageBufferViews.length;t++)if(o.bufferViews[o.images[t].bufferView].byteOffset=m,m+=u.imageBufferViews[t].byteLength,g.push(u.imageBufferViews[t]),m%4){const t=4-m%4;m+=t,g.push(new ArrayBuffer(t))}if(u.otherBufferViews.has(t))for(const s of u.otherBufferViews.get(t))o.bufferViews.push({buffer:w,byteOffset:m,byteLength:s.byteLength}),u.otherBufferViewsIndexMap.set(s,o.bufferViews.length-1),m+=s.byteLength,g.push(s);if(!m)return void u.logger.warn(`@gltf-transform/core: Skipping empty buffer, "${t.getName()}".`);let A;s.isGLB?A="@glb.bin":(A=u.bufferURIGenerator.createURI(t,"bin"),e.uri=A),e.byteLength=m,r.resources[A]=d.concat(g),o.buffers.push(e)}),e.listAccessors().find(t=>!t.getBuffer())&&i.warn("Skipped writing one or more Accessors: no Buffer assigned."),o.materials=e.listMaterials().map((t,s)=>{const e=u.createPropertyDef(t);if(e.alphaMode=t.getAlphaMode(),t.getAlphaMode()===V.AlphaMode.MASK&&(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=u.createTextureInfoDef(s,r)}if(t.getEmissiveTexture()){const s=t.getEmissiveTexture(),r=t.getEmissiveTextureInfo();e.emissiveTexture=u.createTextureInfoDef(s,r)}if(t.getNormalTexture()){const s=t.getNormalTexture(),r=t.getNormalTextureInfo(),i=u.createTextureInfoDef(s,r);1!==t.getNormalScale()&&(i.scale=t.getNormalScale()),e.normalTexture=i}if(t.getOcclusionTexture()){const s=t.getOcclusionTexture(),r=t.getOcclusionTextureInfo(),i=u.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=u.createTextureInfoDef(s,r)}return u.materialIndexMap.set(t,s),e}),o.meshes=e.listMeshes().map((t,s)=>{const e=u.createPropertyDef(t);let r;return e.primitives=t.listPrimitives().map(t=>{const s={attributes:{}};s.mode=t.getMode(),t.getMaterial()&&(s.material=u.materialIndexMap.get(t.getMaterial())),Object.keys(t.getExtras()).length&&(s.extras=t.getExtras()),t.getIndices()&&(s.indices=u.accessorIndexMap.get(t.getIndices()));for(const e of t.listSemantics())s.attributes[e]=u.accessorIndexMap.get(t.getAttribute(e));for(const e of t.listTargets()){const t={};for(const s of e.listSemantics())t[s]=u.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),u.meshIndexMap.set(t,s),e}),o.cameras=e.listCameras().map((t,s)=>{const e=u.createPropertyDef(t);return e.type=t.getType(),e.type===O.Type.PERSPECTIVE?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()},u.cameraIndexMap.set(t,s),e}),o.nodes=e.listNodes().map((t,s)=>{const e=u.createPropertyDef(t);return A.eq(t.getTranslation(),[0,0,0])||(e.translation=t.getTranslation()),A.eq(t.getRotation(),[0,0,0,1])||(e.rotation=t.getRotation()),A.eq(t.getScale(),[1,1,1])||(e.scale=t.getScale()),t.getWeights().length&&(e.weights=t.getWeights()),u.nodeIndexMap.set(t,s),e}),o.skins=e.listSkins().map((t,s)=>{const e=u.createPropertyDef(t);return t.getInverseBindMatrices()&&(e.inverseBindMatrices=u.accessorIndexMap.get(t.getInverseBindMatrices())),t.getSkeleton()&&(e.skeleton=u.nodeIndexMap.get(t.getSkeleton())),e.joints=t.listJoints().map(t=>u.nodeIndexMap.get(t)),u.skinIndexMap.set(t,s),e}),e.listNodes().forEach((t,s)=>{const e=o.nodes[s];t.getMesh()&&(e.mesh=u.meshIndexMap.get(t.getMesh())),t.getCamera()&&(e.camera=u.cameraIndexMap.get(t.getCamera())),t.getSkin()&&(e.skin=u.skinIndexMap.get(t.getSkin())),t.listChildren().length>0&&(e.children=t.listChildren().map(t=>u.nodeIndexMap.get(t)))}),o.animations=e.listAnimations().map(t=>{const s=u.createPropertyDef(t),e=new Map;return s.samplers=t.listSamplers().map((t,s)=>{const r=u.createPropertyDef(t);return r.input=u.accessorIndexMap.get(t.getInput()),r.output=u.accessorIndexMap.get(t.getOutput()),r.interpolation=t.getInterpolation(),e.set(t,s),r}),s.channels=t.listChannels().map(t=>{const s=u.createPropertyDef(t);return s.sampler=e.get(t.getSampler()),s.target={node:u.nodeIndexMap.get(t.getTargetNode()),path:t.getTargetPath()},s}),s}),o.scenes=e.listScenes().map(t=>{const s=u.createPropertyDef(t);return s.nodes=t.listChildren().map(t=>u.nodeIndexMap.get(t)),s}),o.extensionsUsed=e.listExtensionsUsed().map(t=>t.extensionName),o.extensionsRequired=e.listExtensionsRequired().map(t=>t.extensionName),e.listExtensionsUsed().forEach(t=>t.write(u)),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]}(o),r}}class ft{constructor(){this.Lt=T.DEFAULT_INSTANCE,this.gt=[],this.Ot={},this.Ut=h.INTERLEAVED}setLogger(t){return this.Lt=t,this}registerExtensions(t){for(const s of t)this.gt.push(s),s.register();return this}registerDependencies(t){return Object.assign(this.Ot,t),this}setVertexLayout(t){return this.Ut=t,this}readJSON(t){return ht.read(t,{extensions:this.gt,dependencies:this.Ot,logger:this.Lt})}writeJSON(t,s){if(s.isGLB&&1!==t.getRoot().listBuffers().length)throw new Error("GLB must have exactly 1 buffer.");return s.vertexLayout=this.Ut,s.dependencies=et({},this.Ot,s.dependencies),lt.write(t,s)}binaryToJSON(t){const s=this.Pt(t),e=s.json;if(e.buffers&&e.buffers.length>1)throw new Error("Cannot resolve external buffers with binaryToJSON().");if(e.images&&e.images.find(t=>void 0===t.bufferView))throw new Error("Cannot resolve external images with binaryToJSON().");return s}Pt(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, "${s[1]}".`);const e=new Uint32Array(t,12,2),r=e[0],i=new Uint32Array(t,20+r,2);if(1313821514!==e[1]||5130562!==i[1])throw new Error("Unexpected GLB layout.");const n=d.decodeText(t.slice(20,20+r)),h=20+r+8;return{json:JSON.parse(n),resources:{"@glb.bin":t.slice(h,h+i[0])}}}readBinary(t){return this.readJSON(this.binaryToJSON(t))}writeBinary(t){const{json:s,resources:e}=this.writeJSON(t,{basename:"",isGLB:!0,logger:this.Lt,dependencies:this.Ot,vertexLayout:this.Ut}),r=JSON.stringify(s),i=d.pad(d.encodeText(r),32),n=new Uint32Array([i.byteLength,1313821514]).buffer,h=d.concat([n,i]),o=d.pad(Object.values(e)[0]||new ArrayBuffer(0),0),u=new Uint32Array([o.byteLength,5130562]).buffer,c=d.concat([u,o]),a=new Uint32Array([1179937895,2,12+h.byteLength+c.byteLength]).buffer;return d.concat([a,h,c])}}class dt extends ft{constructor(){super(),this.lastReadBytes=0,this.lastWriteBytes=0,this.Ft=require("fs"),this.kt=require("path")}read(t){const s=this.readAsJSON(t);return ht.read(s,{extensions:this.gt,dependencies:this.Ot,logger:this.Lt})}readAsJSON(t){return t.match(/\.glb$/)||t.match(/^data:application\/octet-stream;/)?this.Gt(t):this.jt(t)}write(t,s){t.match(/\.glb$/)?this.Dt(t,s):this.Jt(t,s)}Gt(t){const s=this.Ft.readFileSync(t),e=d.trim(s);this.lastReadBytes=e.byteLength;const r=this.Pt(e);return this.zt(r,this.kt.dirname(t),!0),r}jt(t){this.lastReadBytes=0;const s=this.Ft.readFileSync(t,"utf8");this.lastReadBytes+=s.length;const e={json:JSON.parse(s),resources:{}};return this.zt(e,this.kt.dirname(t),!1),e}zt(t,s,e){const r=t.json.images||[],i=t.json.buffers||[];[...r,...i].forEach((i,n)=>{if(i.uri)if(i.uri.match(/data:/)){const s=`__${M()}.${g.extension(i.uri)}`;t.resources[s]=d.createBufferFromDataURI(i.uri),i.uri=s}else{const e=this.kt.resolve(s,i.uri);t.resources[i.uri]=d.trim(this.Ft.readFileSync(e)),this.lastReadBytes+=t.resources[i.uri].byteLength}else{const t=e&&n===r.length;if(void 0===i.bufferView&&!t)throw new Error("Missing resource URI.")}})}Jt(t,s){this.lastWriteBytes=0;const{json:e,resources:r}=lt.write(s,{basename:g.basename(t),isGLB:!1,logger:this.Lt,dependencies:this.Ot,vertexLayout:this.Ut}),{Ft:i,kt:n}=this,h=n.dirname(t),o=JSON.stringify(e,null,2);this.lastWriteBytes+=o.length,i.writeFileSync(t,o),Object.keys(r).forEach(t=>{const s=Buffer.from(r[t]);i.writeFileSync(n.join(h,t),s),this.lastWriteBytes+=s.byteLength})}Dt(t,s){const e=Buffer.from(this.writeBinary(s));this.Ft.writeFileSync(t,e),this.lastWriteBytes=e.byteLength}}const pt={};class gt extends ft{constructor(t=pt){super(),this.$t=t}read(t){return this.readAsJSON(t).then(t=>this.readJSON(t))}readAsJSON(t){return t.match(/^data:application\/octet-stream;/)||new URL(t,window.location.href).pathname.match(/\.glb$/)?this.Gt(t):this.jt(t)}jt(t){var s=this;const e={json:{},resources:{}};return fetch(t,this.$t).then(t=>t.json()).then(async function(r){return e.json=r,await s.zt(e,wt(t),!1),e})}Gt(t){var s=this;return fetch(t,this.$t).then(t=>t.arrayBuffer()).then(async function(e){const r=s.Pt(e);return await s.zt(r,wt(t),!0),r})}zt(t,s,e){const r=t.json,i=r.images||[],n=r.buffers||[],h=[...i,...n].map((r,n)=>{if(r.uri)return fetch(function(t,s){if(!function(t){return!/^(?:[a-zA-Z]+:)?\//.test(t)}(s))return s;const e=t.split("/"),r=s.split("/");e.pop();for(let t=0;t<r.length;t++)"."!==r[t]&&(".."===r[t]?e.pop():e.push(r[t]));return e.join("/")}(s,r.uri),this.$t).then(t=>t.arrayBuffer()).then(s=>{t.resources[r.uri]=s});{const t=e&&n===i.length;if(void 0===r.bufferView&&!t)throw new Error("Missing resource URI.")}});return Promise.all(h).then(()=>{})}}function wt(t){const s=t.lastIndexOf("/");return-1===s?"./":t.substr(0,s+1)}export{N as Accessor,C as Animation,_ as AnimationChannel,L as AnimationSampler,P as AttributeLink,B as Buffer,d as BufferUtils,S as COPY_IDENTITY,O as Camera,p as ColorUtils,tt as Document,st as Extension,U as ExtensionProperty,g as FileUtils,i as GLB_BUFFER,a as Graph,l as GraphChild,f as GraphChildList,m as ImageUtils,F as IndexLink,c as Link,T as Logger,V as Material,A as MathUtils,W as Mesh,Y as Node,dt as NodeIO,H as Primitive,q as PrimitiveTarget,b as Property,n as PropertyType,rt as ReaderContext,X as Root,Z as Scene,K as Skin,Q as Texture,o as TextureChannel,j as TextureInfo,k as TextureLink,h as VertexLayout,gt as WebIO,ut as WriterContext,M as uuid};
import{determinant as t,getRotation as s,multiply as e}from"gl-matrix/mat4";import{length as r}from"gl-matrix/vec3";const i="@glb.bin";var n,h,o;function u(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"}(n||(n={})),function(t){t.INTERLEAVED="interleaved",t.SEPARATE="separate"}(h||(h={})),function(t){t[t.R=4096]="R",t[t.G=256]="G",t[t.B=16]="B",t[t.A=1]="A"}(o||(o={}));class c{constructor(t,s,e){if(this.t=t,this.i=s,this.h=e,this.o=!1,this.u=[],!s.canLink(e))throw new Error("Cannot link disconnected graphs/documents.")}getName(){return this.t}getParent(){return this.i}getChild(){return this.h}setChild(t){return this.h=t,this}dispose(){this.o||(this.o=!0,this.u.forEach(t=>t()),this.u.length=0)}onDispose(t){return this.u.push(t),this}isDisposed(){return this.o}}class a{constructor(){this.l=new Set,this.p=new Set,this.g=new Map,this.m=new Map,this.u={}}on(t,s){return this.u[t]=this.u[t]||[],this.u[t].push(s),this}emit(t,s){for(const e of this.u[t]||[])e(s);return this}getLinks(){return Array.from(this.p)}listParentLinks(t){return Array.from(this.m.get(t)||this.l)}listParents(t){return this.listParentLinks(t).map(t=>t.getParent())}listChildLinks(t){return Array.from(this.g.get(t)||this.l)}listChildren(t){return this.listChildLinks(t).map(t=>t.getChild())}disconnectChildren(t){return(this.g.get(t)||this.l).forEach(t=>t.dispose()),this}disconnectParents(t,s){let e=Array.from(this.m.get(t)||this.l);return s&&(e=e.filter(t=>s(t.getParent()))),e.forEach(t=>t.dispose()),this}swapChild(t,s,e){const r=this.g.get(t)||this.l;return Array.from(r).filter(t=>t.getChild()===s).forEach(t=>{this.m.get(s).delete(t),t.setChild(e),this.m.has(e)||this.m.set(e,new Set),this.m.get(e).add(t)}),this}link(t,s,e){if(!e)return null;const r=new c(t,s,e);return this.registerLink(r),r}registerLink(t){this.p.add(t);const s=t.getParent();this.g.has(s)||this.g.set(s,new Set),this.g.get(s).add(t);const e=t.getChild();return this.m.has(e)||this.m.set(e,new Set),this.m.get(e).add(t),t.onDispose(()=>this.unlink(t)),t}unlink(t){return this.p.delete(t),this.g.get(t.getParent()).delete(t),this.m.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){t=Math.floor(t);const e=s;return e[0]=(t>>16&255)/255,e[1]=(t>>8&255)/255,e[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){const e=t,r=s;for(let t=0;t<3;t++)r[t]=e[t]<.04045?.0773993808*e[t]:Math.pow(.9478672986*e[t]+.0521327014,2.4);return s}static convertLinearToSRGB(t,s){const e=t,r=s;for(let t=0;t<3;t++)r[t]=e[t]<.0031308?12.92*e[t]:1.055*Math.pow(e[t],.41666)-.055;return s}}class g{static basename(t){const s=t.split(/[\\/]/).pop();return s.substr(0,s.lastIndexOf("."))}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{getSize(t){const s=new DataView(t);return d.decodeText(t.slice(12,16))===w.PNG_FRIED_CHUNK_NAME?[s.getUint32(32,!1),s.getUint32(36,!1)]:[s.getUint32(16,!1),s.getUint32(20,!1)]}getChannels(t){return 4}}w.PNG_FRIED_CHUNK_NAME="CgBI";class m{static registerFormat(t,s){this.impls[t]=s}static getSize(t,s){return this.impls[s]?this.impls[s].getSize(t):null}static getChannels(t,s){return this.impls[s]?this.impls[s].getChannels(t):null}static getMemSize(t,s){if(!this.impls[s])return null;if(this.impls[s].getGPUByteLength)return this.impls[s].getGPUByteLength(t);let e=0;const r=this.getSize(t,s);for(;r[0]>1||r[1]>1;)e+=r[0]*r[1]*4,r[0]=Math.max(Math.floor(r[0]/2),1),r[1]=Math.max(Math.floor(r[1]/2),1);return e+=4,e}static mimeTypeToExtension(t){return"image/jpeg"===t?"jpg":t.split("/").pop()}static extensionToMimeType(t){return"jpg"===t?"image/jpeg":`image/${t}`}}function v(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");return t}m.impls={"image/jpeg":new class{getSize(t){let s,e,r=new DataView(t,4);for(;r.byteLength;){if(s=r.getUint16(0,!1),v(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")}getChannels(t){return 3}},"image/png":new w};class A{static identity(t){return t}static eq(t,s){if(t.length!==s.length)return!1;for(let e=0;e<t.length;e++)if(Math.abs(t[e]-s[e])>1e-5)return!1;return!0}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);default:throw new Error("Invalid component type.")}}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);default:throw new Error("Invalid component type.")}}static decompose(e,i,n,h){let o=r([e[0],e[1],e[2]]);const u=r([e[4],e[5],e[6]]),c=r([e[8],e[9],e[10]]);t(e)<0&&(o=-o),i[0]=e[12],i[1]=e[13],i[2]=e[14];const a=e.slice(),l=1/o,f=1/u,d=1/c;a[0]*=l,a[1]*=l,a[2]*=l,a[4]*=f,a[5]*=f,a[6]*=f,a[8]*=d,a[9]*=d,a[10]*=d,s(n,a),h[0]=o,h[1]=u,h[2]=c}static compose(t,s,e,r){const i=r,n=s[0],h=s[1],o=s[2],u=s[3],c=n+n,a=h+h,l=o+o,f=n*c,d=n*a,p=n*l,g=h*a,w=h*l,m=o*l,v=u*c,A=u*a,T=u*l,y=e[0],x=e[1],E=e[2];return i[0]=(1-(g+m))*y,i[1]=(d+T)*y,i[2]=(p-A)*y,i[3]=0,i[4]=(d-T)*x,i[5]=(1-(f+m))*x,i[6]=(w+v)*x,i[7]=0,i[8]=(p+A)*E,i[9]=(w-v)*E,i[10]=(1-(f+g))*E,i[11]=0,i[12]=t[0],i[13]=t[1],i[14]=t[2],i[15]=1,i}}class T{constructor(t){this.verbosity=t}debug(t){this.verbosity<=T.Verbosity.DEBUG&&console.debug(t)}info(t){this.verbosity<=T.Verbosity.INFO&&console.info(t)}warn(t){this.verbosity<=T.Verbosity.WARN&&console.warn(t)}error(t){this.verbosity<=T.Verbosity.ERROR&&console.error(t)}}T.Verbosity={SILENT:4,ERROR:3,WARN:2,INFO:1,DEBUG:0},T.DEFAULT_INSTANCE=new T(T.Verbosity.INFO);const y="23456789abdegjkmnpqrvwxyzABDEGJKMNPQRVWXYZ",x=new Set,E=function(){let t="";for(let s=0;s<6;s++)t+=y.charAt(Math.floor(Math.random()*y.length));return t},M=function(){for(let t=0;t<999;t++){const t=E();if(!x.has(t))return x.add(t),t}return""},S=t=>t;class b extends class{constructor(t){this.graph=t,this.o=!1,this.graph=t}canLink(t){return this.graph===t.graph}isDisposed(){return this.o}dispose(){this.graph.disconnectChildren(this),this.graph.disconnectParents(this),this.o=!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;for(const s of e)t.push(s)}),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.graph=t,this.v={},this.t="",this.t=s}getName(){return this.t}setName(t){return this.t=t,this}getExtras(){return this.v}setExtras(t){return this.v=t,this}clone(){const t=new(0,this.constructor)(this.graph).copy(this,S);return this.graph.emit("clone",t),t}copy(t,s=S){return this.t=t.t,this.v=JSON.parse(JSON.stringify(t.v)),this}detach(){return this.graph.disconnectParents(this,t=>"Root"!==t.propertyType),this}listParents(){return this.listGraphParents()}}const R="Pass extension name (string) as lookup token, not a constructor.";class I extends b{constructor(){super(...arguments),this.extensions=[]}copy(t,s=S){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(R);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(R);const e=this.getExtension(t);return e&&this.removeGraphChild(this.extensions,e),s?(s.T(this),this.addGraphChild(this.extensions,this.graph.link(t,this,s))):this}listExtensions(){return this.extensions.map(t=>t.getChild())}}u([f],I.prototype,"extensions",void 0);class N extends I{constructor(){super(...arguments),this.propertyType=n.ACCESSOR,this.M=null,this.S=N.Type.SCALAR,this.I=N.ComponentType.FLOAT,this.N=!1,this.C=A.identity,this._=A.identity,this.buffer=null}copy(t,s=S){return super.copy(t,s),this.S=t.S,this.I=t.I,this.N=t.N,this.C=t.C,this._=t._,t.M&&(this.M=t.M.slice()),t.buffer&&this.setBuffer(s(t.buffer.getChild())),this}static getElementSize(t){switch(t){case N.Type.SCALAR:return 1;case N.Type.VEC2:return 2;case N.Type.VEC3:return 3;case N.Type.VEC4:case N.Type.MAT2:return 4;case N.Type.MAT3:return 9;case N.Type.MAT4:return 16;default:throw new Error("Unexpected type: "+t)}}static getComponentSize(t){switch(t){case N.ComponentType.BYTE:case N.ComponentType.UNSIGNED_BYTE:return 1;case N.ComponentType.SHORT:case N.ComponentType.UNSIGNED_SHORT:return 2;case N.ComponentType.UNSIGNED_INT:case N.ComponentType.FLOAT: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._(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.M[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._(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.M[r+s];Number.isFinite(e)&&(t[s]=Math.max(t[s],e))}return t}getCount(){return this.M?this.M.length/this.getElementSize():0}getType(){return this.S}setType(t){return this.S=t,this}getElementSize(){return N.getElementSize(this.S)}getComponentSize(){return this.M.BYTES_PER_ELEMENT}getComponentType(){return this.I}getNormalized(){return this.N}setNormalized(t){return this.N=t,t?(this._=t=>A.denormalize(t,this.I),this.C=t=>A.normalize(t,this.I)):(this._=A.identity,this.C=A.identity),this}getScalar(t){const s=this.getElementSize();return this._(this.M[t*s])}setScalar(t,s){return this.M[t*this.getElementSize()]=this.C(s),this}getElement(t,s){const e=this.getElementSize();for(let r=0;r<e;r++)s[r]=this._(this.M[t*e+r]);return s}setElement(t,s){const e=this.getElementSize();for(let r=0;r<e;r++)this.M[t*e+r]=this.C(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.M}setArray(t){return this.I=t?function(t){switch(t.constructor){case Float32Array:return N.ComponentType.FLOAT;case Uint32Array:return N.ComponentType.UNSIGNED_INT;case Uint16Array:return N.ComponentType.UNSIGNED_SHORT;case Uint8Array:return N.ComponentType.UNSIGNED_BYTE;case Int16Array:return N.ComponentType.SHORT;case Int8Array:return N.ComponentType.BYTE;default:throw new Error("Unknown accessor componentType.")}}(t):N.ComponentType.FLOAT,this.M=t,this}getByteLength(){return this.M?this.M.byteLength:0}}N.Type={SCALAR:"SCALAR",VEC2:"VEC2",VEC3:"VEC3",VEC4:"VEC4",MAT2:"MAT2",MAT3:"MAT3",MAT4:"MAT4"},N.ComponentType={BYTE:5120,UNSIGNED_BYTE:5121,SHORT:5122,UNSIGNED_SHORT:5123,UNSIGNED_INT:5125,FLOAT:5126},u([l],N.prototype,"buffer",void 0);class C extends I{constructor(){super(...arguments),this.propertyType=n.ANIMATION,this.channels=[],this.samplers=[]}copy(t,s=S){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())}}u([f],C.prototype,"channels",void 0),u([f],C.prototype,"samplers",void 0);class _ extends b{constructor(){super(...arguments),this.propertyType=n.ANIMATION_CHANNEL,this.L=null,this.targetNode=null,this.sampler=null}copy(t,s=S){return super.copy(t,s),this.L=t.L,t.targetNode&&this.setTargetNode(s(t.targetNode.getChild())),t.sampler&&this.setSampler(s(t.sampler.getChild())),this}getTargetPath(){return this.L}setTargetPath(t){return this.L=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}}_.TargetPath={TRANSLATION:"translation",ROTATION:"rotation",SCALE:"scale",WEIGHTS:"weights"},u([l],_.prototype,"targetNode",void 0),u([l],_.prototype,"sampler",void 0);class L extends b{constructor(){super(...arguments),this.propertyType=n.ANIMATION_SAMPLER,this.O=L.Interpolation.LINEAR,this.input=null,this.output=null}copy(t,s=S){return super.copy(t,s),this.O=t.O,t.input&&this.setInput(s(t.input.getChild())),t.output&&this.setOutput(s(t.output.getChild())),this}getInterpolation(){return this.O}setInterpolation(t){return this.O=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}}L.Interpolation={LINEAR:"LINEAR",STEP:"STEP",CUBICSPLINE:"CUBICSPLINE"},u([l],L.prototype,"input",void 0),u([l],L.prototype,"output",void 0);class B extends I{constructor(){super(...arguments),this.propertyType=n.BUFFER,this.U=""}copy(t,s=S){return super.copy(t,s),this.U=t.U,this}getURI(){return this.U}setURI(t){return this.U=t,this}}class O extends I{constructor(){super(...arguments),this.propertyType=n.CAMERA,this.S=O.Type.PERSPECTIVE,this.P=.1,this.F=100,this.k=null,this.j=2*Math.PI*50/360,this.D=1,this.J=1}copy(t,s=S){return super.copy(t,s),this.S=t.S,this.P=t.P,this.F=t.F,this.k=t.k,this.j=t.j,this.D=t.D,this.J=t.J,this}getType(){return this.S}setType(t){return this.S=t,this}getZNear(){return this.P}setZNear(t){return this.P=t,this}getZFar(){return this.F}setZFar(t){return this.F=t,this}getAspectRatio(){return this.k}setAspectRatio(t){return this.k=t,this}getYFov(){return this.j}setYFov(t){return this.j=t,this}getXMag(){return this.D}setXMag(t){return this.D=t,this}getYMag(){return this.J}setYMag(t){return this.J=t,this}}O.Type={PERSPECTIVE:"perspective",ORTHOGRAPHIC:"orthographic"};class U extends b{constructor(t,s){super(t),this.$=s,this.$.addExtensionProperty(this)}dispose(){this.$.removeExtensionProperty(this),super.dispose()}T(t){if(!this.parentTypes.includes(t.propertyType))throw new Error(`Parent "${t.propertyType}" invalid for child "${this.propertyType}".`)}}class P extends c{constructor(){super(...arguments),this.semantic=""}copy(t){return this.semantic=t.semantic,this}}class F extends c{copy(t){return this}}class k extends c{constructor(){super(...arguments),this.channels=0}copy(t){return this.channels=t.channels,this}}class G extends a{linkAttribute(t,s,e){if(!e)return null;const r=new P(t,s,e);return r.semantic=t,this.registerLink(r),r}linkIndex(t,s,e){if(!e)return null;const r=new F(t,s,e);return this.registerLink(r),r}linkTexture(t,s,e,r){if(!r)return null;const i=new k(t,e,r);return i.channels=s,this.registerLink(i),i}}class j extends I{constructor(){super(...arguments),this.propertyType=n.TEXTURE_INFO,this.V=0,this.W=null,this.Y=null,this.H=j.WrapMode.REPEAT,this.q=j.WrapMode.REPEAT}copy(t,s=S){return super.copy(t,s),this.V=t.V,this.W=t.W,this.Y=t.Y,this.H=t.H,this.q=t.q,this}getTexCoord(){return this.V}setTexCoord(t){return this.V=t,this}getMagFilter(){return this.W}setMagFilter(t){return this.W=t,this}getMinFilter(){return this.Y}setMinFilter(t){return this.Y=t,this}getWrapS(){return this.H}setWrapS(t){return this.H=t,this}getWrapT(){return this.q}setWrapT(t){return this.q=t,this}}j.WrapMode={CLAMP_TO_EDGE:33071,MIRRORED_REPEAT:33648,REPEAT:10497},j.MagFilter={NEAREST:9728,LINEAR:9729},j.MinFilter={NEAREST:9728,LINEAR:9729,NEAREST_MIPMAP_NEAREST:9984,LINEAR_MIPMAP_NEAREST:9985,NEAREST_MIPMAP_LINEAR:9986,LINEAR_MIPMAP_LINEAR:9987};const{R:D,G:J,B:z,A:$}=o;class V extends I{constructor(){super(...arguments),this.propertyType=n.MATERIAL,this.Z=V.AlphaMode.OPAQUE,this.K=.5,this.X=!1,this.tt=[1,1,1,1],this.st=[0,0,0],this.et=1,this.rt=1,this.it=1,this.nt=1,this.baseColorTexture=null,this.baseColorTextureInfo=this.graph.link("baseColorTextureInfo",this,new j(this.graph)),this.emissiveTexture=null,this.emissiveTextureInfo=this.graph.link("emissiveTextureInfo",this,new j(this.graph)),this.normalTexture=null,this.normalTextureInfo=this.graph.link("normalTextureInfo",this,new j(this.graph)),this.occlusionTexture=null,this.occlusionTextureInfo=this.graph.link("occlusionTextureInfo",this,new j(this.graph)),this.metallicRoughnessTexture=null,this.metallicRoughnessTextureInfo=this.graph.link("metallicRoughnessTextureInfo",this,new j(this.graph))}copy(t,s=S){return super.copy(t,s),this.Z=t.Z,this.K=t.K,this.X=t.X,this.tt=[...t.tt],this.st=[...t.st],this.et=t.et,this.rt=t.rt,this.it=t.it,this.nt=t.nt,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.X}setDoubleSided(t){return this.X=t,this}getAlpha(){return this.tt[3]}setAlpha(t){return this.tt[3]=t,this}getAlphaMode(){return this.Z}setAlphaMode(t){return this.Z=t,this}getAlphaCutoff(){return this.K}setAlphaCutoff(t){return this.K=t,this}getBaseColorFactor(){return this.tt}setBaseColorFactor(t){return this.tt=t,this}getBaseColorHex(){return p.factorToHex(this.tt)}setBaseColorHex(t){return p.hexToFactor(t,this.tt),this}getBaseColorTexture(){return this.baseColorTexture?this.baseColorTexture.getChild():null}getBaseColorTextureInfo(){return this.baseColorTexture?this.baseColorTextureInfo.getChild():null}setBaseColorTexture(t){return this.baseColorTexture=this.graph.linkTexture("baseColorTexture",D|J|z|$,this,t),this}getEmissiveFactor(){return this.st}setEmissiveFactor(t){return this.st=t,this}getEmissiveHex(){return p.factorToHex(this.st)}setEmissiveHex(t){return p.hexToFactor(t,this.st),this}getEmissiveTexture(){return this.emissiveTexture?this.emissiveTexture.getChild():null}getEmissiveTextureInfo(){return this.emissiveTexture?this.emissiveTextureInfo.getChild():null}setEmissiveTexture(t){return this.emissiveTexture=this.graph.linkTexture("emissiveTexture",D|J|z,this,t),this}getNormalScale(){return this.et}setNormalScale(t){return this.et=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.linkTexture("normalTexture",D|J|z,this,t),this}getOcclusionStrength(){return this.rt}setOcclusionStrength(t){return this.rt=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.linkTexture("occlusionTexture",D,this,t),this}getRoughnessFactor(){return this.it}setRoughnessFactor(t){return this.it=t,this}getMetallicFactor(){return this.nt}setMetallicFactor(t){return this.nt=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.linkTexture("metallicRoughnessTexture",J|z,this,t),this}}V.AlphaMode={OPAQUE:"OPAQUE",MASK:"MASK",BLEND:"BLEND"},u([l],V.prototype,"baseColorTexture",void 0),u([l],V.prototype,"baseColorTextureInfo",void 0),u([l],V.prototype,"emissiveTexture",void 0),u([l],V.prototype,"emissiveTextureInfo",void 0),u([l],V.prototype,"normalTexture",void 0),u([l],V.prototype,"normalTextureInfo",void 0),u([l],V.prototype,"occlusionTexture",void 0),u([l],V.prototype,"occlusionTextureInfo",void 0),u([l],V.prototype,"metallicRoughnessTexture",void 0),u([l],V.prototype,"metallicRoughnessTextureInfo",void 0);class W extends I{constructor(){super(...arguments),this.propertyType=n.MESH,this.ht=[],this.primitives=[]}copy(t,s=S){return super.copy(t,s),this.ht=[...t.ht],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.ht}setWeights(t){return this.ht=t,this}}u([f],W.prototype,"primitives",void 0);class Y extends I{constructor(){super(...arguments),this.propertyType=n.NODE,this.ot=[0,0,0],this.ut=[0,0,0,1],this.ct=[1,1,1],this.ht=[],this.i=null,this.camera=null,this.mesh=null,this.skin=null,this.children=[]}copy(t,s=S){return super.copy(t,s),this.ot=[...t.ot],this.ut=[...t.ut],this.ct=[...t.ct],this.ht=[...t.ht],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!==S&&(this.clearGraphChildList(this.children),t.children.forEach(t=>this.addChild(s(t.getChild())))),this}getTranslation(){return this.ot}getRotation(){return this.ut}getScale(){return this.ct}setTranslation(t){return this.ot=t,this}setRotation(t){return this.ut=t,this}setScale(t){return this.ct=t,this}getMatrix(){return A.compose(this.ot,this.ut,this.ct,[])}getWorldTranslation(){const t=[0,0,0];return A.decompose(this.getWorldMatrix(),t,[0,0,0,1],[1,1,1]),t}getWorldRotation(){const t=[0,0,0,1];return A.decompose(this.getWorldMatrix(),[0,0,0],t,[1,1,1]),t}getWorldScale(){const t=[1,1,1];return A.decompose(this.getWorldMatrix(),[0,0,0],[0,0,0,1],t),t}getWorldMatrix(){const t=[];for(let s=this;s instanceof Y;s=s.i)t.push(s);let s;const r=t.pop().getMatrix();for(;s=t.pop();)e(r,r,s.getMatrix());return r}addChild(t){t.i&&t.i.removeChild(t);const s=this.graph.link("child",this,t);return this.addGraphChild(this.children,s),t.i=this,s.onDispose(()=>t.i=null),this}removeChild(t){return this.removeGraphChild(this.children,t)}listChildren(){return this.children.map(t=>t.getChild())}getParent(){return this.i}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.ht}setWeights(t){return this.ht=t,this}traverse(t){t(this);for(const s of this.listChildren())s.traverse(t);return this}}u([l],Y.prototype,"camera",void 0),u([l],Y.prototype,"mesh",void 0),u([l],Y.prototype,"skin",void 0),u([f],Y.prototype,"children",void 0);class H extends I{constructor(){super(...arguments),this.propertyType=n.PRIMITIVE,this.at=H.Mode.TRIANGLES,this.material=null,this.indices=null,this.attributes=[],this.targets=[]}copy(t,s=S){return super.copy(t,s),this.at=t.at,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,this,s);return 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.at}setMode(t){return this.at=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)}}H.Mode={POINTS:0,LINES:1,LINE_LOOP:2,LINE_STRIP:3,TRIANGLES:4,TRIANGLE_STRIP:5,TRIANGLE_FAN:6},u([l],H.prototype,"material",void 0),u([l],H.prototype,"indices",void 0),u([f],H.prototype,"attributes",void 0),u([f],H.prototype,"targets",void 0);class q extends b{constructor(){super(...arguments),this.propertyType=n.PRIMITIVE_TARGET,this.attributes=[]}copy(t,s=S){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)}}u([f],q.prototype,"attributes",void 0);class Z extends I{constructor(){super(...arguments),this.propertyType=n.SCENE,this.children=[]}copy(t,s=S){return super.copy(t,s),s!==S&&(this.clearGraphChildList(this.children),t.children.forEach(t=>this.addChild(s(t.getChild())))),this}addChild(t){t.i&&t.i.removeChild(t);const s=this.graph.link("child",this,t);return this.addGraphChild(this.children,s),t.i=this,s.onDispose(()=>t.i=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}}u([f],Z.prototype,"children",void 0);class K extends I{constructor(){super(...arguments),this.propertyType=n.SKIN,this.skeleton=null,this.inverseBindMatrices=null,this.joints=[]}copy(t,s=S){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())}}u([l],K.prototype,"skeleton",void 0),u([l],K.prototype,"inverseBindMatrices",void 0),u([f],K.prototype,"joints",void 0);class Q extends I{constructor(){super(...arguments),this.propertyType=n.TEXTURE,this.lt=null,this.ft="",this.U=""}copy(t,s=S){return super.copy(t,s),this.ft=t.ft,this.U=t.U,t.lt&&(this.lt=t.lt.slice(0)),this}getMimeType(){return this.ft||m.extensionToMimeType(g.extension(this.U))}setMimeType(t){return this.ft=t,this}getURI(){return this.U}setURI(t){return this.U=t,this.ft=m.extensionToMimeType(g.extension(t)),this}getImage(){return this.lt}setImage(t){return this.lt=t,this}getSize(){return this.lt?m.getSize(this.lt,this.getMimeType()):null}}class X extends b{constructor(t){super(t),this.propertyType=n.ROOT,this.dt={generator:"glTF-Transform v0.10.1",version:"2.0"},this.gt=new Set,this.accessors=[],this.animations=[],this.buffers=[],this.cameras=[],this.materials=[],this.meshes=[],this.nodes=[],this.scenes=[],this.skins=[],this.textures=[],t.on("clone",t=>this.wt(t))}clone(){throw new Error("Root cannot be cloned.")}copy(t,s=S){if(super.copy(t,s),s===S)throw new Error("Root cannot be copied.");return Object.assign(this.dt,t.dt),t.accessors.forEach(t=>this.vt(s(t.getChild()))),t.animations.forEach(t=>this.At(s(t.getChild()))),t.buffers.forEach(t=>this.Tt(s(t.getChild()))),t.cameras.forEach(t=>this.yt(s(t.getChild()))),t.materials.forEach(t=>this.xt(s(t.getChild()))),t.meshes.forEach(t=>this.Et(s(t.getChild()))),t.nodes.forEach(t=>this.Mt(s(t.getChild()))),t.scenes.forEach(t=>this.St(s(t.getChild()))),t.skins.forEach(t=>this.bt(s(t.getChild()))),t.textures.forEach(t=>this.Rt(s(t.getChild()))),this}wt(t){return t instanceof Z?this.St(t):t instanceof Y?this.Mt(t):t instanceof O?this.yt(t):t instanceof K?this.bt(t):t instanceof W?this.Et(t):t instanceof V?this.xt(t):t instanceof Q?this.Rt(t):t instanceof C?this.At(t):t instanceof N?this.vt(t):t instanceof B&&this.Tt(t),this}getAsset(){return this.dt}listExtensionsUsed(){return Array.from(this.gt)}listExtensionsRequired(){return this.listExtensionsUsed().filter(t=>t.isRequired())}It(t){return this.gt.add(t),this}Nt(t){return this.gt.delete(t),this}St(t){return this.addGraphChild(this.scenes,this.graph.link("scene",this,t))}listScenes(){return this.scenes.map(t=>t.getChild())}Mt(t){return this.addGraphChild(this.nodes,this.graph.link("node",this,t))}listNodes(){return this.nodes.map(t=>t.getChild())}yt(t){return this.addGraphChild(this.cameras,this.graph.link("camera",this,t))}listCameras(){return this.cameras.map(t=>t.getChild())}bt(t){return this.addGraphChild(this.skins,this.graph.link("skin",this,t))}listSkins(){return this.skins.map(t=>t.getChild())}Et(t){return this.addGraphChild(this.meshes,this.graph.link("mesh",this,t))}listMeshes(){return this.meshes.map(t=>t.getChild())}xt(t){return this.addGraphChild(this.materials,this.graph.link("material",this,t))}listMaterials(){return this.materials.map(t=>t.getChild())}Rt(t){return this.addGraphChild(this.textures,this.graph.link("texture",this,t))}listTextures(){return this.textures.map(t=>t.getChild())}At(t){return this.addGraphChild(this.animations,this.graph.link("animation",this,t))}listAnimations(){return this.animations.map(t=>t.getChild())}vt(t){return this.addGraphChild(this.accessors,this.graph.link("accessor",this,t))}listAccessors(){return this.accessors.map(t=>t.getChild())}Tt(t){return this.addGraphChild(this.buffers,this.graph.link("buffer",this,t))}listBuffers(){return this.buffers.map(t=>t.getChild())}}u([f],X.prototype,"accessors",void 0),u([f],X.prototype,"animations",void 0),u([f],X.prototype,"buffers",void 0),u([f],X.prototype,"cameras",void 0),u([f],X.prototype,"materials",void 0),u([f],X.prototype,"meshes",void 0),u([f],X.prototype,"nodes",void 0),u([f],X.prototype,"scenes",void 0),u([f],X.prototype,"skins",void 0),u([f],X.prototype,"textures",void 0);class tt{constructor(){this.Ct=new G,this._t=new X(this.Ct),this.Lt=T.DEFAULT_INSTANCE}getRoot(){return this._t}getGraph(){return this.Ct}getLogger(){return this.Lt}setLogger(t){return this.Lt=t,this}clone(){return(new tt).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._t),r.set(t._t,this._t);for(const i of t.Ct.getLinks())for(const t of[i.getParent(),i.getChild()]){if(e.has(t))continue;let i;if(t.propertyType===n.TEXTURE_INFO)i=t;else{const e=t.constructor;i=t instanceof U?new e(this.Ct,s[t.extensionName]):new e(this.Ct)}r.set(t,i),e.add(t)}const i=t=>{const s=r.get(t);if(!s)throw new Error("Could resolve property.");return s};for(const t of e){const s=r.get(t);if(!s)throw new Error("Could resolve property.");s.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.Ct,t);return this._t.St(s),s}createNode(t=""){const s=new Y(this.Ct,t);return this._t.Mt(s),s}createCamera(t=""){const s=new O(this.Ct,t);return this._t.yt(s),s}createSkin(t=""){const s=new K(this.Ct,t);return this._t.bt(s),s}createMesh(t=""){const s=new W(this.Ct,t);return this._t.Et(s),s}createPrimitive(){return new H(this.Ct)}createPrimitiveTarget(t=""){return new q(this.Ct,t)}createMaterial(t=""){const s=new V(this.Ct,t);return this._t.xt(s),s}createTexture(t=""){const s=new Q(this.Ct,t);return this._t.Rt(s),s}createAnimation(t=""){const s=new C(this.Ct,t);return this._t.At(s),s}createAnimationChannel(t=""){return new _(this.Ct,t)}createAnimationSampler(t=""){return new L(this.Ct,t)}createAccessor(t="",s=null){s||(s=this.getRoot().listBuffers()[0]);const e=new N(this.Ct,t).setBuffer(s);return this._t.vt(e),e}createBuffer(t=""){const s=new B(this.Ct,t);return this._t.Tt(s),s}}class st{constructor(t){this.doc=t,this.prereadTypes=[],this.prewriteTypes=[],this.dependencies=[],this.required=!1,this.properties=new Set,t.getRoot().It(this)}dispose(){this.doc.getRoot().Nt(this);for(const t of this.properties)t.dispose()}static register(){}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}preread(t,s){return this}prewrite(t,s){return this}}function et(){return(et=Object.assign||function(t){for(var s=1;s<arguments.length;s++){var e=arguments[s];for(var r in e)Object.prototype.hasOwnProperty.call(e,r)&&(t[r]=e[r])}return t}).apply(this,arguments)}class rt{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 it={5120:Int8Array,5121:Uint8Array,5122:Int16Array,5123:Uint16Array,5125:Uint32Array,5126:Float32Array},nt={logger:T.DEFAULT_INSTANCE,extensions:[],dependencies:{}};class ht{static read(t,s=nt){const{json:e}=t,r=new tt;this.validate(t,s);const i=new rt(t),h=t.json.asset,o=r.getRoot().getAsset();h.copyright&&(o.copyright=h.copyright),h.extras&&(o.extras=h.extras),h.generator&&(o.generator=h.generator),h.minVersion&&(o.minVersion=h.minVersion);const u=e.extensionsUsed||[],c=e.extensionsRequired||[];for(const t of s.extensions)if(u.includes(t.EXTENSION_NAME)){const e=r.createExtension(t).setRequired(c.includes(t.EXTENSION_NAME));for(const t of e.dependencies)e.install(t,s.dependencies[t])}i.buffers=(e.buffers||[]).map(t=>{const s=r.createBuffer(t.name);return t.extras&&s.setExtras(t.extras),t.uri&&0!==t.uri.indexOf("__")&&s.setURI(t.uri),s}),i.bufferViewBuffers=(e.bufferViews||[]).map(t=>i.buffers[t.buffer]),i.accessors=(e.accessors||[]).map(s=>{const e=r.createAccessor(s.name,i.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 n;return n=void 0!==s.sparse?function(t,s){const e=it[t.componentType],r=N.getElementSize(t.type);let i;i=void 0!==t.bufferView?ot(t,s).slice():new e(t.count*r);const n=t.sparse.count,h=et({},t,t.sparse.indices,{count:n,type:"SCALAR"}),o=et({},t,t.sparse.values,{count:n}),u=ot(h,s),c=ot(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):ot(s,t).slice(),e.setArray(n),e});const a=e.images||[],l=e.textures||[];r.getRoot().listExtensionsUsed().filter(t=>t.prereadTypes.includes(n.TEXTURE)).forEach(t=>t.preread(i,n.TEXTURE)),i.textures=a.map(s=>{const i=r.createTexture(s.name);if(s.extras&&i.setExtras(s.extras),void 0!==s.bufferView){const r=e.bufferViews[s.bufferView],n=t.json.buffers[r.buffer],h=r.byteOffset||0,o=(n.uri?t.resources[n.uri]:t.resources["@glb.bin"]).slice(h,h+r.byteLength);i.setImage(o)}else void 0!==s.uri&&(i.setImage(t.resources[s.uri]),0!==s.uri.indexOf("__")&&i.setURI(s.uri));if(void 0!==s.mimeType)i.setMimeType(s.mimeType);else if(s.uri){const t=g.extension(s.uri);i.setMimeType(m.extensionToMimeType(t))}return i}),i.materials=(e.materials||[]).map(t=>{const s=r.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(i.textures[l[t.index].source]),i.setTextureInfo(s.getBaseColorTextureInfo(),t)}if(void 0!==t.emissiveTexture){const e=t.emissiveTexture;s.setEmissiveTexture(i.textures[l[e.index].source]),i.setTextureInfo(s.getEmissiveTextureInfo(),e)}if(void 0!==t.normalTexture){const e=t.normalTexture;s.setNormalTexture(i.textures[l[e.index].source]),i.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(i.textures[l[e.index].source]),i.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(i.textures[l[t.index].source]),i.setTextureInfo(s.getMetallicRoughnessTextureInfo(),t)}return s});const f=e.meshes||[];r.getRoot().listExtensionsUsed().filter(t=>t.prereadTypes.includes(n.PRIMITIVE)).forEach(t=>t.preread(i,n.PRIMITIVE)),i.meshes=f.map(t=>{const s=r.createMesh(t.name);return t.extras&&s.setExtras(t.extras),void 0!==t.weights&&s.setWeights(t.weights),(t.primitives||[]).forEach(e=>{const n=r.createPrimitive();e.extras&&n.setExtras(e.extras),void 0!==e.material&&n.setMaterial(i.materials[e.material]),void 0!==e.mode&&n.setMode(e.mode);for(const[t,s]of Object.entries(e.attributes||{}))n.setAttribute(t,i.accessors[s]);void 0!==e.indices&&n.setIndices(i.accessors[e.indices]);const h=t.extras&&t.extras.targetNames||[];(e.targets||[]).forEach((t,s)=>{const e=h[s]||s.toString(),o=r.createPrimitiveTarget(e);for(const[s,e]of Object.entries(t))o.setAttribute(s,i.accessors[e]);n.addTarget(o)}),s.addPrimitive(n)}),s}),i.cameras=(e.cameras||[]).map(t=>{const s=r.createCamera(t.name).setType(t.type);return t.extras&&s.setExtras(t.extras),t.type===O.Type.PERSPECTIVE?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 d=e.nodes||[];return i.nodes=d.map(t=>{const s=r.createNode(t.name);if(t.extras&&s.setExtras(t.extras),void 0!==t.translation&&s.setTranslation(t.translation),void 0!==t.rotation&&s.setRotation(t.rotation),void 0!==t.scale&&s.setScale(t.scale),void 0!==t.matrix){const e=[0,0,0],r=[0,0,0,1],i=[1,1,1];A.decompose(t.matrix,e,r,i),s.setTranslation(e),s.setRotation(r),s.setScale(i)}return void 0!==t.weights&&s.setWeights(t.weights),s}),i.skins=(e.skins||[]).map(t=>{const s=r.createSkin(t.name);t.extras&&s.setExtras(t.extras),void 0!==t.inverseBindMatrices&&s.setInverseBindMatrices(i.accessors[t.inverseBindMatrices]),void 0!==t.skeleton&&s.setSkeleton(i.nodes[t.skeleton]);for(const e of t.joints)s.addJoint(i.nodes[e]);return s}),d.map((t,s)=>{const e=i.nodes[s];(t.children||[]).forEach(t=>e.addChild(i.nodes[t])),void 0!==t.mesh&&e.setMesh(i.meshes[t.mesh]),void 0!==t.camera&&e.setCamera(i.cameras[t.camera]),void 0!==t.skin&&e.setSkin(i.skins[t.skin])}),i.animations=(e.animations||[]).map(t=>{const s=r.createAnimation(t.name);t.extras&&s.setExtras(t.extras);const e=(t.samplers||[]).map(t=>{const e=r.createAnimationSampler().setInput(i.accessors[t.input]).setOutput(i.accessors[t.output]).setInterpolation(t.interpolation||L.Interpolation.LINEAR);return t.extras&&e.setExtras(t.extras),s.addSampler(e),e});return(t.channels||[]).forEach(t=>{const n=r.createAnimationChannel().setSampler(e[t.sampler]).setTargetNode(i.nodes[t.target.node]).setTargetPath(t.target.path);t.extras&&n.setExtras(t.extras),s.addChannel(n)}),s}),i.scenes=(e.scenes||[]).map(t=>{const s=r.createScene(t.name);return t.extras&&s.setExtras(t.extras),(t.nodes||[]).map(t=>i.nodes[t]).forEach(t=>s.addChild(t)),s}),r.getRoot().listExtensionsUsed().forEach(t=>t.read(i)),r}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, "${t}".`)}}function ot(t,s){const e=s.json.bufferViews[t.bufferView],r=s.json.buffers[e.buffer],i=r.uri?s.resources[r.uri]:s.resources["@glb.bin"],n=it[t.componentType],h=N.getElementSize(t.type);if(void 0!==e.byteStride&&e.byteStride!==h*n.BYTES_PER_ELEMENT)return function(t,s){const e=s.json.bufferViews[t.bufferView],r=s.json.buffers[e.buffer],i=r.uri?s.resources[r.uri]:s.resources["@glb.bin"],n=it[t.componentType],h=N.getElementSize(t.type),o=n.BYTES_PER_ELEMENT,u=t.byteOffset||0,c=new n(t.count*h),a=new DataView(i,e.byteOffset,e.byteLength),l=e.byteStride;for(let s=0;s<t.count;s++)for(let e=0;e<h;e++){const r=u+s*l+e*o;let i;switch(t.componentType){case N.ComponentType.FLOAT:i=a.getFloat32(r,!0);break;case N.ComponentType.UNSIGNED_INT:i=a.getUint32(r,!0);break;case N.ComponentType.UNSIGNED_SHORT:i=a.getUint16(r,!0);break;case N.ComponentType.UNSIGNED_BYTE:i=a.getUint8(r);break;case N.ComponentType.SHORT:i=a.getInt16(r,!0);break;case N.ComponentType.BYTE:i=a.getInt8(r);break;default:throw new Error(`Unexpected componentType "${t.componentType}".`)}c[s*h+e]=i}return c}(t,s);const o=(e.byteOffset||0)+(t.byteOffset||0);switch(t.componentType){case N.ComponentType.FLOAT:return new Float32Array(i,o,t.count*h);case N.ComponentType.UNSIGNED_INT:return new Uint32Array(i,o,t.count*h);case N.ComponentType.UNSIGNED_SHORT:return new Uint16Array(i,o,t.count*h);case N.ComponentType.UNSIGNED_BYTE:return new Uint8Array(i,o,t.count*h);case N.ComponentType.SHORT:return new Int16Array(i,o,t.count*h);case N.ComponentType.BYTE:return new Int8Array(i,o,t.count*h);default:throw new Error(`Unexpected componentType "${t.componentType}".`)}}class ut{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.imageBufferViews=[],this.otherBufferViews=new Map,this.otherBufferViewsIndexMap=new Map,this.extensionData={},this.Bt=new Map,this.accessorUsageGroupedByParent=new Set(["ARRAY_BUFFER"])}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.imageBufferViews.push(s),t.bufferView=this.jsonDoc.json.bufferViews.length,this.jsonDoc.json.bufferViews.push({buffer:0,byteOffset:-1,byteLength:s.byteLength});else{const r=m.mimeTypeToExtension(e.getMimeType());t.uri=this.imageURIGenerator.createURI(e,r),this.jsonDoc.resources[t.uri]=s}}getAccessorUsage(t){return this.Bt.get(t)}setAccessorUsage(t,s){const e=this.Bt.get(t);if(e&&e!==s)throw new Error(`Accessor with usage "${e}" cannot be reused as "${s}".`);return this.Bt.set(t,s),this}listAccessorsByUsage(){const t={};for(const[s,e]of Array.from(this.Bt.entries()))t[e]=t[e]||[],t[e].push(s);return t}}class ct{constructor(t,s){this.multiple=t,this.basename=s,this.counter=1}createURI(t,s){return t.getURI()?t.getURI():this.multiple?`${this.basename}_${this.counter++}.${s}`:`${this.basename}.${s}`}}const at={logger:T.DEFAULT_INSTANCE,basename:"",isGLB:!0,vertexLayout:h.INTERLEAVED,dependencies:{}};class lt{static write(t,s=at){const e=t.getRoot(),r={json:{asset:e.getAsset()},resources:{}},i=s.logger||T.DEFAULT_INSTANCE,o=r.json;o.asset.generator="glTF-Transform v0.10.1";const u=new ut(r,s),c=e.listBuffers().length,a=e.listTextures().length;u.bufferURIGenerator=new ct(c>1,s.basename),u.imageURIGenerator=new ct(a>1,s.basename),u.logger=t.getLogger();for(const e of t.getRoot().listExtensionsUsed())for(const t of e.dependencies)e.install(t,s.dependencies[t]);function l(t,s,e,r){const i=[];let n=0;for(const s of t){const t=u.createAccessorDef(s);t.bufferView=o.bufferViews.length;const e=d.pad(s.getArray().buffer);t.byteOffset=n,n+=e.byteLength,i.push(e),u.accessorIndexMap.set(s,o.accessors.length),o.accessors.push(t)}const h={buffer:s,byteOffset:e,byteLength:d.concat(i).byteLength};return r&&(h.target=r),o.bufferViews.push(h),{buffers:i,byteLength:n}}function f(t,s,e){const r=t[0].getCount();let i=0;for(const s of t){const t=u.createAccessorDef(s);t.bufferView=o.bufferViews.length,t.byteOffset=i;const e=s.getElementSize(),r=s.getComponentSize();i+=d.padNumber(e*r),u.accessorIndexMap.set(s,o.accessors.length),o.accessors.push(t)}const n=r*i,h=new ArrayBuffer(n),c=new DataView(h);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 N.ComponentType.FLOAT:c.setFloat32(u,a,!0);break;case N.ComponentType.BYTE:c.setInt8(u,a);break;case N.ComponentType.SHORT:c.setInt16(u,a,!0);break;case N.ComponentType.UNSIGNED_BYTE:c.setUint8(u,a);break;case N.ComponentType.UNSIGNED_SHORT:c.setUint16(u,a,!0);break;case N.ComponentType.UNSIGNED_INT:c.setUint32(u,a,!0);break;default:throw new Error("Unexpected component type: "+h)}}e+=d.padNumber(t*n)}}return o.bufferViews.push({buffer:s,byteOffset:e,byteLength:n,byteStride:i,target:34962}),{byteLength:n,buffers:[h]}}const p=new Map;for(const s of t.getGraph().getLinks()){if(s.getParent()===e)continue;const t=s.getChild();if(t instanceof N){const e=p.get(t)||[];e.push(s),p.set(t,e)}}return o.accessors=[],o.bufferViews=[],o.samplers=[],o.textures=[],o.images=e.listTextures().map((t,s)=>{const e=u.createPropertyDef(t);return t.getMimeType()&&(e.mimeType=t.getMimeType()),t.getImage()&&u.createImageData(e,t.getImage(),t),u.imageIndexMap.set(t,s),e}),t.getRoot().listExtensionsUsed().filter(t=>t.prewriteTypes.includes(n.ACCESSOR)).forEach(t=>t.prewrite(u,n.ACCESSOR)),o.buffers=[],e.listBuffers().forEach(t=>{const e=u.createPropertyDef(t),i=u.accessorUsageGroupedByParent,n=new Map,c=t.listParents().filter(t=>t instanceof N),a=new Set(c);for(const t of c){if(u.accessorIndexMap.has(t))continue;const s=p.get(t)||[];for(const e of s){if(u.getAccessorUsage(t))break;e instanceof P?u.setAccessorUsage(t,"ARRAY_BUFFER"):e instanceof F?u.setAccessorUsage(t,"ELEMENT_ARRAY_BUFFER"):"inverseBindMatrices"===e.getName()&&u.setAccessorUsage(t,"INVERSE_BIND_MATRICES")}if(u.getAccessorUsage(t)||u.setAccessorUsage(t,"OTHER"),i.has(u.getAccessorUsage(t))){const e=s[0].getParent(),r=n.get(e)||new Set;r.add(t),n.set(e,r)}}const g=[],w=o.buffers.length;let m=0;const v=u.listAccessorsByUsage();for(const t in v)if(i.has(t))for(const e of Array.from(n.values())){const r=Array.from(e).filter(t=>a.has(t)).filter(s=>u.getAccessorUsage(s)===t);if(r.length)if("ARRAY_BUFFER"!==t||s.vertexLayout===h.INTERLEAVED){const s="ARRAY_BUFFER"===t?f(r,w,m):l(r,w,m);m+=s.byteLength,g.push(...s.buffers)}else for(const t of r){const s=f([t],w,m);m+=s.byteLength,g.push(...s.buffers)}}else{const s=v[t].filter(t=>a.has(t));if(!s.length)continue;const e=l(s,w,m,"ELEMENT_ARRAY_BUFFER"===t?34963:null);m+=e.byteLength,g.push(...e.buffers)}if(u.imageBufferViews.length)for(let t=0;t<u.imageBufferViews.length;t++)if(o.bufferViews[o.images[t].bufferView].byteOffset=m,m+=u.imageBufferViews[t].byteLength,g.push(u.imageBufferViews[t]),m%4){const t=4-m%4;m+=t,g.push(new ArrayBuffer(t))}if(u.otherBufferViews.has(t))for(const s of u.otherBufferViews.get(t))o.bufferViews.push({buffer:w,byteOffset:m,byteLength:s.byteLength}),u.otherBufferViewsIndexMap.set(s,o.bufferViews.length-1),m+=s.byteLength,g.push(s);if(!m)return void u.logger.warn(`@gltf-transform/core: Skipping empty buffer, "${t.getName()}".`);let A;s.isGLB?A="@glb.bin":(A=u.bufferURIGenerator.createURI(t,"bin"),e.uri=A),e.byteLength=m,r.resources[A]=d.concat(g),o.buffers.push(e)}),e.listAccessors().find(t=>!t.getBuffer())&&i.warn("Skipped writing one or more Accessors: no Buffer assigned."),o.materials=e.listMaterials().map((t,s)=>{const e=u.createPropertyDef(t);if(e.alphaMode=t.getAlphaMode(),t.getAlphaMode()===V.AlphaMode.MASK&&(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=u.createTextureInfoDef(s,r)}if(t.getEmissiveTexture()){const s=t.getEmissiveTexture(),r=t.getEmissiveTextureInfo();e.emissiveTexture=u.createTextureInfoDef(s,r)}if(t.getNormalTexture()){const s=t.getNormalTexture(),r=t.getNormalTextureInfo(),i=u.createTextureInfoDef(s,r);1!==t.getNormalScale()&&(i.scale=t.getNormalScale()),e.normalTexture=i}if(t.getOcclusionTexture()){const s=t.getOcclusionTexture(),r=t.getOcclusionTextureInfo(),i=u.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=u.createTextureInfoDef(s,r)}return u.materialIndexMap.set(t,s),e}),o.meshes=e.listMeshes().map((t,s)=>{const e=u.createPropertyDef(t);let r;return e.primitives=t.listPrimitives().map(t=>{const s={attributes:{}};s.mode=t.getMode(),t.getMaterial()&&(s.material=u.materialIndexMap.get(t.getMaterial())),Object.keys(t.getExtras()).length&&(s.extras=t.getExtras()),t.getIndices()&&(s.indices=u.accessorIndexMap.get(t.getIndices()));for(const e of t.listSemantics())s.attributes[e]=u.accessorIndexMap.get(t.getAttribute(e));for(const e of t.listTargets()){const t={};for(const s of e.listSemantics())t[s]=u.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),u.meshIndexMap.set(t,s),e}),o.cameras=e.listCameras().map((t,s)=>{const e=u.createPropertyDef(t);return e.type=t.getType(),e.type===O.Type.PERSPECTIVE?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()},u.cameraIndexMap.set(t,s),e}),o.nodes=e.listNodes().map((t,s)=>{const e=u.createPropertyDef(t);return A.eq(t.getTranslation(),[0,0,0])||(e.translation=t.getTranslation()),A.eq(t.getRotation(),[0,0,0,1])||(e.rotation=t.getRotation()),A.eq(t.getScale(),[1,1,1])||(e.scale=t.getScale()),t.getWeights().length&&(e.weights=t.getWeights()),u.nodeIndexMap.set(t,s),e}),o.skins=e.listSkins().map((t,s)=>{const e=u.createPropertyDef(t);return t.getInverseBindMatrices()&&(e.inverseBindMatrices=u.accessorIndexMap.get(t.getInverseBindMatrices())),t.getSkeleton()&&(e.skeleton=u.nodeIndexMap.get(t.getSkeleton())),e.joints=t.listJoints().map(t=>u.nodeIndexMap.get(t)),u.skinIndexMap.set(t,s),e}),e.listNodes().forEach((t,s)=>{const e=o.nodes[s];t.getMesh()&&(e.mesh=u.meshIndexMap.get(t.getMesh())),t.getCamera()&&(e.camera=u.cameraIndexMap.get(t.getCamera())),t.getSkin()&&(e.skin=u.skinIndexMap.get(t.getSkin())),t.listChildren().length>0&&(e.children=t.listChildren().map(t=>u.nodeIndexMap.get(t)))}),o.animations=e.listAnimations().map(t=>{const s=u.createPropertyDef(t),e=new Map;return s.samplers=t.listSamplers().map((t,s)=>{const r=u.createPropertyDef(t);return r.input=u.accessorIndexMap.get(t.getInput()),r.output=u.accessorIndexMap.get(t.getOutput()),r.interpolation=t.getInterpolation(),e.set(t,s),r}),s.channels=t.listChannels().map(t=>{const s=u.createPropertyDef(t);return s.sampler=e.get(t.getSampler()),s.target={node:u.nodeIndexMap.get(t.getTargetNode()),path:t.getTargetPath()},s}),s}),o.scenes=e.listScenes().map(t=>{const s=u.createPropertyDef(t);return s.nodes=t.listChildren().map(t=>u.nodeIndexMap.get(t)),s}),o.extensionsUsed=e.listExtensionsUsed().map(t=>t.extensionName),o.extensionsRequired=e.listExtensionsRequired().map(t=>t.extensionName),e.listExtensionsUsed().forEach(t=>t.write(u)),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]}(o),r}}class ft{constructor(){this.Lt=T.DEFAULT_INSTANCE,this.gt=[],this.Ot={},this.Ut=h.INTERLEAVED}setLogger(t){return this.Lt=t,this}registerExtensions(t){for(const s of t)this.gt.push(s),s.register();return this}registerDependencies(t){return Object.assign(this.Ot,t),this}setVertexLayout(t){return this.Ut=t,this}readJSON(t){return ht.read(t,{extensions:this.gt,dependencies:this.Ot,logger:this.Lt})}writeJSON(t,s){if(s.isGLB&&1!==t.getRoot().listBuffers().length)throw new Error("GLB must have exactly 1 buffer.");return s.vertexLayout=this.Ut,s.dependencies=et({},this.Ot,s.dependencies),lt.write(t,s)}binaryToJSON(t){const s=this.Pt(t),e=s.json;if(e.buffers&&e.buffers.length>1)throw new Error("Cannot resolve external buffers with binaryToJSON().");if(e.images&&e.images.find(t=>void 0===t.bufferView))throw new Error("Cannot resolve external images with binaryToJSON().");return s}Pt(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.Lt,dependencies:this.Ot,vertexLayout:this.Ut}),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 dt extends ft{constructor(){super(),this.lastReadBytes=0,this.lastWriteBytes=0,this.Ft=require("fs"),this.kt=require("path")}read(t){const s=this.readAsJSON(t);return ht.read(s,{extensions:this.gt,dependencies:this.Ot,logger:this.Lt})}readAsJSON(t){return t.match(/\.glb$/)||t.match(/^data:application\/octet-stream;/)?this.Gt(t):this.jt(t)}write(t,s){t.match(/\.glb$/)?this.Dt(t,s):this.Jt(t,s)}Gt(t){const s=this.Ft.readFileSync(t),e=d.trim(s);this.lastReadBytes=e.byteLength;const r=this.Pt(e);return this.zt(r,this.kt.dirname(t),!0),r}jt(t){this.lastReadBytes=0;const s=this.Ft.readFileSync(t,"utf8");this.lastReadBytes+=s.length;const e={json:JSON.parse(s),resources:{}};return this.zt(e,this.kt.dirname(t),!1),e}zt(t,s,e){const r=t.json.images||[],i=t.json.buffers||[];[...r,...i].forEach((i,n)=>{if(i.uri)if(i.uri.match(/data:/)){const s=`__${M()}.${g.extension(i.uri)}`;t.resources[s]=d.createBufferFromDataURI(i.uri),i.uri=s}else{const e=this.kt.resolve(s,i.uri);t.resources[i.uri]=d.trim(this.Ft.readFileSync(e)),this.lastReadBytes+=t.resources[i.uri].byteLength}else{const t=e&&n===r.length;if(void 0===i.bufferView&&!t)throw new Error("Missing resource URI.")}})}Jt(t,s){this.lastWriteBytes=0;const{json:e,resources:r}=lt.write(s,{basename:g.basename(t),isGLB:!1,logger:this.Lt,dependencies:this.Ot,vertexLayout:this.Ut}),{Ft:i,kt:n}=this,h=n.dirname(t),o=JSON.stringify(e,null,2);this.lastWriteBytes+=o.length,i.writeFileSync(t,o),Object.keys(r).forEach(t=>{const s=Buffer.from(r[t]);i.writeFileSync(n.join(h,t),s),this.lastWriteBytes+=s.byteLength})}Dt(t,s){const e=Buffer.from(this.writeBinary(s));this.Ft.writeFileSync(t,e),this.lastWriteBytes=e.byteLength}}const pt={};class gt extends ft{constructor(t=pt){super(),this.$t=t}read(t){return this.readAsJSON(t).then(t=>this.readJSON(t))}readAsJSON(t){return t.match(/^data:application\/octet-stream;/)||new URL(t,window.location.href).pathname.match(/\.glb$/)?this.Gt(t):this.jt(t)}jt(t){var s=this;const e={json:{},resources:{}};return fetch(t,this.$t).then(t=>t.json()).then(async function(r){return e.json=r,await s.zt(e,wt(t),!1),e})}Gt(t){var s=this;return fetch(t,this.$t).then(t=>t.arrayBuffer()).then(async function(e){const r=s.Pt(e);return await s.zt(r,wt(t),!0),r})}zt(t,s,e){const r=t.json,i=r.images||[],n=r.buffers||[],h=[...i,...n].map((r,n)=>{if(r.uri)return fetch(function(t,s){if(!function(t){return!/^(?:[a-zA-Z]+:)?\//.test(t)}(s))return s;const e=t.split("/"),r=s.split("/");e.pop();for(let t=0;t<r.length;t++)"."!==r[t]&&(".."===r[t]?e.pop():e.push(r[t]));return e.join("/")}(s,r.uri),this.$t).then(t=>t.arrayBuffer()).then(s=>{t.resources[r.uri]=s});{const t=e&&n===i.length;if(void 0===r.bufferView&&!t)throw new Error("Missing resource URI.")}});return Promise.all(h).then(()=>{})}}function wt(t){const s=t.lastIndexOf("/");return-1===s?"./":t.substr(0,s+1)}export{N as Accessor,C as Animation,_ as AnimationChannel,L as AnimationSampler,P as AttributeLink,B as Buffer,d as BufferUtils,S as COPY_IDENTITY,O as Camera,p as ColorUtils,tt as Document,st as Extension,U as ExtensionProperty,g as FileUtils,i as GLB_BUFFER,a as Graph,l as GraphChild,f as GraphChildList,m as ImageUtils,F as IndexLink,c as Link,T as Logger,V as Material,A as MathUtils,W as Mesh,Y as Node,dt as NodeIO,H as Primitive,q as PrimitiveTarget,b as Property,n as PropertyType,rt as ReaderContext,X as Root,Z as Scene,K as Skin,Q as Texture,o as TextureChannel,j as TextureInfo,k as TextureLink,h as VertexLayout,gt as WebIO,ut as WriterContext,M as uuid};
//# sourceMappingURL=core.modern.js.map

4

package.json
{
"name": "@gltf-transform/core",
"version": "0.10.0",
"version": "0.10.1",
"repository": "github:donmccurdy/glTF-Transform",

@@ -42,3 +42,3 @@ "description": "glTF 2.0 SDK for JavaScript, TypeScript, and Node.js",

},
"gitHead": "3b430d523f997b18d69e15a563aa2ffc95f16b7b"
"gitHead": "52687a745e0c71ba8bff90b9b6cda2dbe923f1f2"
}
dist/core.js

Sorry, the diff of this file is too big to display

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