@gltf-transform/core - npm Package Compare versions

Comparing version 0.8.1 to 0.8.4

dist/core.modern.js

@@ -1,2 +0,2 @@
-import{fromRotationTranslationScale as t,getTranslation as s,getRotation as e,getScaling as i,multiply as r,determinant as n}from"gl-matrix/mat4";import{length as h}from"gl-matrix/vec3";const o="@glb.bin";var u;function c(t,s,e,i){var r,n=arguments.length,h=n<3?s:null===i?i=Object.getOwnPropertyDescriptor(s,e):i;if("object"==typeof Reflect&&"function"==typeof Reflect.decorate)h=Reflect.decorate(t,s,e,i);else for(var o=t.length-1;o>=0;o--)(r=t[o])&&(h=(n<3?r(h):n>3?r(s,e,h):r(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"}(u||(u={}));class 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G(this.graph)),this.metallicRoughnessTexture=null,this.metallicRoughnessTextureInfo=this.graph.link("metallicRoughnessTextureInfo",this,new G(this.graph))}copy(t,s=I){return super.copy(t,s),this.Y=t.Y,this.X=t.X,this.K=t.K,this.Z=[...t.Z],this.tt=[...t.tt],this.st=t.st,this.et=t.et,this.it=t.it,this.rt=t.rt,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.K}setDoubleSided(t){return this.K=t,this}getAlpha(){return this.Z[3]}setAlpha(t){return this.Z[3]=t,this}getAlphaMode(){return this.Y}setAlphaMode(t){return this.Y=t,this}getAlphaCutoff(){return this.X}setAlphaCutoff(t){return this.X=t,this}getBaseColorFactor(){return this.Z}setBaseColorFactor(t){return this.Z=t,this}getBaseColorHex(){return g.factorToHex(this.Z)}setBaseColorHex(t){return g.hexToFactor(t,this.Z),this}getBaseColorTexture(){return this.baseColorTexture?this.baseColorTexture.getChild():null}getBaseColorTextureInfo(){return this.baseColorTexture?this.baseColorTextureInfo.getChild():null}setBaseColorTexture(t){return this.baseColorTexture=this.graph.link("baseColorTexture",this,t),this}getEmissiveFactor(){return this.tt}setEmissiveFactor(t){return this.tt=t,this}getEmissiveHex(){return g.factorToHex(this.tt)}setEmissiveHex(t){return g.hexToFactor(t,this.tt),this}getEmissiveTexture(){return this.emissiveTexture?this.emissiveTexture.getChild():null}getEmissiveTextureInfo(){return this.emissiveTexture?this.emissiveTextureInfo.getChild():null}setEmissiveTexture(t){return this.emissiveTexture=this.graph.link("emissiveTexture",this,t),this}getNormalScale(){return this.st}setNormalScale(t){return this.st=t,this}getNormalTexture(){return this.normalTexture?this.normalTexture.getChild():null}getNormalTextureInfo(){return this.normalTexture?this.normalTextureInfo.getChild():null}setNormalTexture(t){return this.normalTexture=this.graph.link("normalTexture",this,t),this}getOcclusionStrength(){return this.et}setOcclusionStrength(t){return this.et=t,this}getOcclusionTexture(){return this.occlusionTexture?this.occlusionTexture.getChild():null}getOcclusionTextureInfo(){return this.occlusionTexture?this.occlusionTextureInfo.getChild():null}setOcclusionTexture(t){return this.occlusionTexture=this.graph.link("occlusionTexture",this,t),this}getRoughnessFactor(){return this.it}setRoughnessFactor(t){return this.it=t,this}getMetallicFactor(){return this.rt}setMetallicFactor(t){return this.rt=t,this}getMetallicRoughnessTexture(){return this.metallicRoughnessTexture?this.metallicRoughnessTexture.getChild():null}getMetallicRoughnessTextureInfo(){return this.metallicRoughnessTexture?this.metallicRoughnessTextureInfo.getChild():null}setMetallicRoughnessTexture(t){return this.metallicRoughnessTexture=this.graph.link("metallicRoughnessTexture",this,t),this}}c([f],z.prototype,"baseColorTexture",void 0),c([f],z.prototype,"baseColorTextureInfo",void 0),c([f],z.prototype,"emissiveTexture",void 0),c([f],z.prototype,"emissiveTextureInfo",void 0),c([f],z.prototype,"normalTexture",void 0),c([f],z.prototype,"normalTextureInfo",void 0),c([f],z.prototype,"occlusionTexture",void 0),c([f],z.prototype,"occlusionTextureInfo",void 0),c([f],z.prototype,"metallicRoughnessTexture",void 0),c([f],z.prototype,"metallicRoughnessTextureInfo",void 0);class V extends N{constructor(){super(...arguments),this.propertyType=u.MESH,this.nt=[],this.primitives=[]}copy(t,s=I){return super.copy(t,s),this.nt=[...t.nt],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.nt}setWeights(t){return this.nt=t,this}}c([d],V.prototype,"primitives",void 0);class J extends N{constructor(){super(...arguments),this.propertyType=u.NODE,this.ht=[0,0,0],this.ot=[0,0,0,1],this.ut=[1,1,1],this.nt=[],this.s=null,this.camera=null,this.mesh=null,this.skin=null,this.children=[]}copy(t,s=I){return super.copy(t,s),this.ht=[...t.ht],this.ot=[...t.ot],this.ut=[...t.ut],this.nt=[...t.nt],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!==I&&(this.clearGraphChildList(this.children),t.children.forEach(t=>this.addChild(s(t.getChild())))),this}getTranslation(){return this.ht}getRotation(){return this.ot}getScale(){return this.ut}setTranslation(t){return this.ht=t,this}setRotation(t){return this.ot=t,this}setScale(t){return this.ut=t,this}getMatrix(){return t([],this.ot,this.ht,this.ut)}getWorldTranslation(){return s([],this.getWorldMatrix())}getWorldRotation(){return e([],this.getWorldMatrix())}getWorldScale(){return i([],this.getWorldMatrix())}getWorldMatrix(){const t=[];for(let s=this;s instanceof J;s=s.s)t.push(s);let s;const e=t.pop().getMatrix();for(;s=t.pop();)r(e,e,s.getMatrix());return e}addChild(t){t.s&&t.s.removeChild(t);const s=this.graph.link("child",this,t);return this.addGraphChild(this.children,s),t.s=this,s.onDispose(()=>t.s=null),this}removeChild(t){return this.removeGraphChild(this.children,t)}listChildren(){return this.children.map(t=>t.getChild())}getParent(){return this.s}getMesh(){return this.mesh?this.mesh.getChild():null}setMesh(t){return this.mesh=this.graph.link("mesh",this,t),this}getCamera(){return this.camera?this.camera.getChild():null}setCamera(t){return this.camera=this.graph.link("camera",this,t),this}getSkin(){return this.skin?this.skin.getChild():null}setSkin(t){return this.skin=this.graph.link("skin",this,t),this}getWeights(){return this.nt}setWeights(t){return this.nt=t,this}traverse(t){t(this);for(const s of this.listChildren())s.traverse(t);return this}}c([f],J.prototype,"camera",void 0),c([f],J.prototype,"mesh",void 0),c([f],J.prototype,"skin",void 0),c([d],J.prototype,"children",void 0);class $ extends N{constructor(){super(...arguments),this.propertyType=u.PRIMITIVE,this.ct=4,this.material=null,this.indices=null,this.attributes=[],this.targets=[]}copy(t,s=I){return super.copy(t,s),this.ct=t.ct,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 i=this.graph.linkAttribute(t.toLowerCase(),this,s);return i.semantic=t,this.addGraphChild(this.attributes,i)}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.ct}setMode(t){return this.ct=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)}}c([f],$.prototype,"material",void 0),c([f],$.prototype,"indices",void 0),c([d],$.prototype,"attributes",void 0),c([d],$.prototype,"targets",void 0);class W extends R{constructor(){super(...arguments),this.propertyType=u.PRIMITIVE_TARGET,this.attributes=[]}copy(t,s=I){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 i=this.graph.linkAttribute(t.toLowerCase(),this,s);return i.semantic=t,this.addGraphChild(this.attributes,i)}listAttributes(){return this.attributes.map(t=>t.getChild())}listSemantics(){return this.attributes.map(t=>t.semantic)}}c([d],W.prototype,"attributes",void 0);class q extends N{constructor(){super(...arguments),this.propertyType=u.SCENE,this.children=[]}copy(t,s=I){return super.copy(t,s),s!==I&&(this.clearGraphChildList(this.children),t.children.forEach(t=>this.addChild(s(t.getChild())))),this}addChild(t){t.s&&t.s.removeChild(t);const s=this.graph.link("child",this,t);return this.addGraphChild(this.children,s),t.s=this,s.onDispose(()=>t.s=null),this}removeChild(t){return this.removeGraphChild(this.children,t)}listChildren(){return this.children.map(t=>t.getChild())}traverse(t){for(const s of this.listChildren())s.traverse(t);return this}}c([d],q.prototype,"children",void 0);class H extends N{constructor(){super(...arguments),this.propertyType=u.SKIN,this.skeleton=null,this.inverseBindMatrices=null,this.joints=[]}copy(t,s=I){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())}}c([f],H.prototype,"skeleton",void 0),c([f],H.prototype,"inverseBindMatrices",void 0),c([d],H.prototype,"joints",void 0);class Y extends N{constructor(){super(...arguments),this.propertyType=u.TEXTURE,this.at=null,this.lt="",this.k=""}copy(t,s=I){return super.copy(t,s),this.lt=t.lt,this.k=t.k,t.at&&(this.at=t.at.slice(0)),this}getMimeType(){return this.lt||m.extensionToMimeType(w.extension(this.k))}setMimeType(t){return this.lt=t,this}getURI(){return this.k}setURI(t){return this.k=t,this.lt=m.extensionToMimeType(w.extension(t)),this}getImage(){return this.at}setImage(t){return this.at=t,this}getSize(){return m.getSize(this.at,this.getMimeType())}}class X extends R{constructor(t){super(t),this.propertyType=u.ROOT,this.ft={generator:"glTF-Transform v0.8.1",version:"2.0"},this.dt=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.pt(t))}clone(){throw new Error("Root cannot be cloned.")}copy(t,s=I){if(super.copy(t,s),s===I)throw new Error("Root cannot be copied.");return Object.assign(this.ft,t.ft),t.accessors.forEach(t=>this.gt(s(t.getChild()))),t.animations.forEach(t=>this.wt(s(t.getChild()))),t.buffers.forEach(t=>this.vt(s(t.getChild()))),t.cameras.forEach(t=>this.xt(s(t.getChild()))),t.materials.forEach(t=>this.yt(s(t.getChild()))),t.meshes.forEach(t=>this.Tt(s(t.getChild()))),t.nodes.forEach(t=>this.At(s(t.getChild()))),t.scenes.forEach(t=>this.bt(s(t.getChild()))),t.skins.forEach(t=>this.Et(s(t.getChild()))),t.textures.forEach(t=>this.Mt(s(t.getChild()))),this}pt(t){return t instanceof q?this.bt(t):t instanceof J?this.At(t):t instanceof P?this.xt(t):t instanceof H?this.Et(t):t instanceof V?this.Tt(t):t instanceof z?this.yt(t):t instanceof Y?this.Mt(t):t instanceof B?this.wt(t):t instanceof _?this.gt(t):t instanceof k&&this.vt(t),this}getAsset(){return this.ft}listExtensionsUsed(){return Array.from(this.dt)}listExtensionsRequired(){return this.listExtensionsUsed().filter(t=>t.isRequired())}St(t){return this.dt.add(t),this}It(t){return this.dt.delete(t),this}bt(t){return this.addGraphChild(this.scenes,this.graph.link("scene",this,t))}listScenes(){return this.scenes.map(t=>t.getChild())}At(t){return this.addGraphChild(this.nodes,this.graph.link("node",this,t))}listNodes(){return this.nodes.map(t=>t.getChild())}xt(t){return this.addGraphChild(this.cameras,this.graph.link("camera",this,t))}listCameras(){return this.cameras.map(t=>t.getChild())}Et(t){return this.addGraphChild(this.skins,this.graph.link("skin",this,t))}listSkins(){return this.skins.map(t=>t.getChild())}Tt(t){return this.addGraphChild(this.meshes,this.graph.link("mesh",this,t))}listMeshes(){return this.meshes.map(t=>t.getChild())}yt(t){return this.addGraphChild(this.materials,this.graph.link("material",this,t))}listMaterials(){return this.materials.map(t=>t.getChild())}Mt(t){return this.addGraphChild(this.textures,this.graph.link("texture",this,t))}listTextures(){return this.textures.map(t=>t.getChild())}wt(t){return this.addGraphChild(this.animations,this.graph.link("animation",this,t))}listAnimations(){return this.animations.map(t=>t.getChild())}gt(t){return this.addGraphChild(this.accessors,this.graph.link("accessor",this,t))}listAccessors(){return this.accessors.map(t=>t.getChild())}vt(t){return this.addGraphChild(this.buffers,this.graph.link("buffer",this,t))}listBuffers(){return this.buffers.map(t=>t.getChild())}}c([d],X.prototype,"accessors",void 0),c([d],X.prototype,"animations",void 0),c([d],X.prototype,"buffers",void 0),c([d],X.prototype,"cameras",void 0),c([d],X.prototype,"materials",void 0),c([d],X.prototype,"meshes",void 0),c([d],X.prototype,"nodes",void 0),c([d],X.prototype,"scenes",void 0),c([d],X.prototype,"skins",void 0),c([d],X.prototype,"textures",void 0);class K{constructor(){this.Rt=new j,this.Ct=new X(this.Rt),this.Nt=A.DEFAULT_INSTANCE}getRoot(){return this.Ct}getGraph(){return this.Rt}getLogger(){return this.Nt}setLogger(t){return this.Nt=t,this}clone(){return(new K).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,i=new Map;e.add(t.Ct),i.set(t.Ct,this.Ct);for(const r of t.Rt.getLinks())for(const t of[r.getParent(),r.getChild()]){if(e.has(t))continue;let r;if(t.propertyType===u.TEXTURE_INFO)r=t;else{const e=t.constructor;r=t instanceof U?new e(this.Rt,s[t.extensionName]):new e(this.Rt)}i.set(t,r),e.add(t)}const r=t=>i.get(t);for(const t of e)i.get(t).copy(t,r);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 q(this.Rt,t);return this.Ct.bt(s),s}createNode(t=""){const s=new J(this.Rt,t);return this.Ct.At(s),s}createCamera(t=""){const s=new P(this.Rt,t);return this.Ct.xt(s),s}createSkin(t=""){const s=new H(this.Rt,t);return this.Ct.Et(s),s}createMesh(t=""){const s=new V(this.Rt,t);return this.Ct.Tt(s),s}createPrimitive(){return new $(this.Rt)}createPrimitiveTarget(t=""){return new W(this.Rt,t)}createMaterial(t=""){const s=new z(this.Rt,t);return this.Ct.yt(s),s}createTexture(t=""){const s=new Y(this.Rt,t);return this.Ct.Mt(s),s}createAnimation(t=""){const s=new B(this.Rt,t);return this.Ct.wt(s),s}createAnimationChannel(t=""){return new L(this.Rt,t)}createAnimationSampler(t=""){return new O(this.Rt,t)}createAccessor(t="",s=null){s||(s=this.getRoot().listBuffers()[0]);const e=new _(this.Rt,t).setBuffer(s);return this.Ct.gt(e),e}createBuffer(t=""){const s=new k(this.Rt,t);return this.Ct.vt(s),s}}class Z{constructor(t){this.doc=t,this.prereadTypes=[],this.prewriteTypes=[],this.dependencies=[],this.required=!1,this.properties=new Set,t.getRoot().St(this)}dispose(){this.doc.getRoot().It(this);for(const t of this.properties)t.dispose()}isRequired(){return this.required}setRequired(t){return this.required=t,this}addExtensionProperty(t){return this.properties.add(t),this}removeExtensionProperty(t){return this.properties.delete(t),this}install(t,s){return this}preread(t,s){return this}prewrite(t,s){return this}}class Q{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 i=this.jsonDoc.json.samplers[e.sampler];void 0!==i.magFilter&&t.setMagFilter(i.magFilter),void 0!==i.minFilter&&t.setMinFilter(i.minFilter),void 0!==i.wrapS&&t.setWrapS(i.wrapS),void 0!==i.wrapT&&t.setWrapT(i.wrapT)}}const tt={5120:Int8Array,5121:Uint8Array,5122:Int16Array,5123:Uint16Array,5125:Uint32Array,5126:Float32Array},st={logger:A.DEFAULT_INSTANCE,extensions:[],dependencies:{}};class et{static read(t,s=st){const{json:i}=t,r=new K;this.validate(t,s);const o=new Q(t),c=t.json.asset,a=r.getRoot().getAsset();c.copyright&&(a.copyright=c.copyright),c.extras&&(a.extras=c.extras),c.generator&&(a.generator=c.generator),c.minVersion&&(a.minVersion=c.minVersion);const l=i.extensionsUsed||[],f=i.extensionsRequired||[];for(const t of s.extensions)if(l.includes(t.EXTENSION_NAME)){const e=r.createExtension(t).setRequired(f.includes(t.EXTENSION_NAME));for(const t of e.dependencies)e.install(t,s.dependencies[t])}o.buffers=(i.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}),o.bufferViewBuffers=(i.bufferViews||[]).map(t=>o.buffers[t.buffer]),o.accessors=(i.accessors||[]).map(s=>{const e=r.createAccessor(s.name,o.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 i;return i=void 0!==s.sparse?function(t,s){const e=tt[t.componentType],i=_.getElementSize(t.type);let r;r=void 0!==t.bufferView?it(t,s).slice():new e(t.count*i);const n=t.sparse.count,h={...t,...t.sparse.indices,count:n,type:"SCALAR"},o={...t,...t.sparse.values,count:n},u=it(h,s),c=it(o,s);for(let t=0;t<h.count;t++)for(let s=0;s<i;s++)r[u[t]*i+s]=c[t*i+s];return r}(s,t):it(s,t).slice(),e.setArray(i),e});const d=i.images||[],p=i.textures||[];r.getRoot().listExtensionsUsed().filter(t=>t.prereadTypes.includes(u.TEXTURE)).forEach(t=>t.preread(o,u.TEXTURE)),o.textures=d.map(s=>{const e=r.createTexture(s.name);if(s.extras&&e.setExtras(s.extras),void 0!==s.bufferView){const r=i.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);e.setImage(o)}else void 0!==s.uri&&(e.setImage(t.resources[s.uri]),0!==s.uri.indexOf("__")&&e.setURI(s.uri));if(void 0!==s.mimeType)e.setMimeType(s.mimeType);else if(s.uri){const t=w.extension(s.uri);e.setMimeType(m.extensionToMimeType(t))}return e}),o.materials=(i.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(o.textures[p[t.index].source]),o.setTextureInfo(s.getBaseColorTextureInfo(),t)}if(void 0!==t.emissiveTexture){const e=t.emissiveTexture;s.setEmissiveTexture(o.textures[p[e.index].source]),o.setTextureInfo(s.getEmissiveTextureInfo(),e)}if(void 0!==t.normalTexture){const e=t.normalTexture;s.setNormalTexture(o.textures[p[e.index].source]),o.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(o.textures[p[e.index].source]),o.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(o.textures[p[t.index].source]),o.setTextureInfo(s.getMetallicRoughnessTextureInfo(),t)}return s});const g=i.meshes||[];r.getRoot().listExtensionsUsed().filter(t=>t.prereadTypes.includes(u.PRIMITIVE)).forEach(t=>t.preread(o,u.PRIMITIVE)),o.meshes=g.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 i=r.createPrimitive();e.extras&&i.setExtras(e.extras),void 0!==e.material&&i.setMaterial(o.materials[e.material]),void 0!==e.mode&&i.setMode(e.mode);for(const[t,s]of Object.entries(e.attributes||{}))i.setAttribute(t,o.accessors[s]);void 0!==e.indices&&i.setIndices(o.accessors[e.indices]);const n=t.extras&&t.extras.targetNames||[];(e.targets||[]).forEach((t,s)=>{const e=n[s]||s.toString(),h=r.createPrimitiveTarget(e);for(const[s,e]of Object.entries(t))h.setAttribute(s,o.accessors[e]);i.addTarget(h)}),s.addPrimitive(i)}),s}),o.cameras=(i.cameras||[]).map(t=>{const s=r.createCamera(t.name).setType(t.type);return t.extras&&s.setExtras(t.extras),"perspective"===t.type?s.setZNear(t.perspective.znear).setZFar(t.perspective.zfar).setYFov(t.perspective.yfov).setAspectRatio(t.perspective.aspectRatio):s.setZNear(t.orthographic.znear).setZFar(t.orthographic.zfar).setXMag(t.orthographic.xmag).setYMag(t.orthographic.ymag),s});const v=i.nodes||[];return o.nodes=v.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 i=[0,0,0],r=[0,0,0,1],o=[1,1,1];!function(t,s,i,r){let o=h([t[0],t[1],t[2]]);const u=h([t[4],t[5],t[6]]),c=h([t[8],t[9],t[10]]);n(t)<0&&(o=-o),i[0]=t[12],i[1]=t[13],i[2]=t[14];const a=t.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,e(s,a),r[0]=o,r[1]=u,r[2]=c}(t.matrix,r,i,o),s.setTranslation(i),s.setRotation(r),s.setScale(o)}return void 0!==t.weights&&s.setWeights(t.weights),s}),o.skins=(i.skins||[]).map(t=>{const s=r.createSkin(t.name);t.extras&&s.setExtras(t.extras),void 0!==t.inverseBindMatrices&&s.setInverseBindMatrices(o.accessors[t.inverseBindMatrices]),void 0!==t.skeleton&&s.setSkeleton(o.nodes[t.skeleton]);for(const e of t.joints)s.addJoint(o.nodes[e]);return s}),v.map((t,s)=>{const e=o.nodes[s];(t.children||[]).forEach(t=>e.addChild(o.nodes[t])),void 0!==t.mesh&&e.setMesh(o.meshes[t.mesh]),void 0!==t.camera&&e.setCamera(o.cameras[t.camera]),void 0!==t.skin&&e.setSkin(o.skins[t.skin])}),o.animations=(i.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(o.accessors[t.input]).setOutput(o.accessors[t.output]).setInterpolation(t.interpolation||"LINEAR");return t.extras&&e.setExtras(t.extras),s.addSampler(e),e});return(t.channels||[]).forEach(t=>{const i=r.createAnimationChannel().setSampler(e[t.sampler]).setTargetNode(o.nodes[t.target.node]).setTargetPath(t.target.path);t.extras&&i.setExtras(t.extras),s.addChannel(i)}),s}),o.scenes=(i.scenes||[]).map(t=>{const s=r.createScene(t.name);return t.extras&&s.setExtras(t.extras),(t.nodes||[]).map(t=>o.nodes[t]).forEach(t=>s.addChild(t)),s}),r.getRoot().listExtensionsUsed().forEach(t=>t.read(o)),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 it(t,s){const e=s.json.bufferViews[t.bufferView],i=s.json.buffers[e.buffer],r=i.uri?s.resources[i.uri]:s.resources["@glb.bin"],n=tt[t.componentType],h=_.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],i=s.json.buffers[e.buffer],r=i.uri?s.resources[i.uri]:s.resources["@glb.bin"],n=tt[t.componentType],h=_.getElementSize(t.type),o=n.BYTES_PER_ELEMENT,u=t.byteOffset||0,c=new n(t.count*h),a=new DataView(r,e.byteOffset,e.byteLength),l=e.byteStride;for(let s=0;s<t.count;s++)for(let e=0;e<h;e++){const i=u+s*l+e*o;let r;switch(t.componentType){case 5126:r=a.getFloat32(i,!0);break;case 5125:r=a.getUint32(i,!0);break;case 5123:r=a.getUint16(i,!0);break;case 5121:r=a.getUint8(i);break;case 5122:r=a.getInt16(i,!0);break;case 5120:r=a.getInt8(i);break;default:throw new Error(`Unexpected componentType "${t.componentType}".`)}c[s*h+e]=r}return c}(t,s);const o=(e.byteOffset||0)+(t.byteOffset||0);switch(t.componentType){case 5126:return new Float32Array(r,o,t.count*h);case 5125:return new Uint32Array(r,o,t.count*h);case 5123:return new Uint16Array(r,o,t.count*h);case 5121:return new Uint8Array(r,o,t.count*h);case 5122:return new Int16Array(r,o,t.count*h);case 5120:return new Int8Array(r,o,t.count*h);default:throw new Error(`Unexpected componentType "${t.componentType}".`)}}class rt{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={}}createTextureInfoDef(t,s){const e={magFilter:s.getMagFilter()||void 0,minFilter:s.getMinFilter()||void 0,wrapS:s.getWrapS(),wrapT:s.getWrapT()},i=JSON.stringify(e);this.samplerDefIndexMap.has(i)||(this.samplerDefIndexMap.set(i,this.jsonDoc.json.samplers.length),this.jsonDoc.json.samplers.push(e));const r={source:this.imageIndexMap.get(t),sampler:this.samplerDefIndexMap.get(i)},n=JSON.stringify(r);this.textureDefIndexMap.has(n)||(this.textureDefIndexMap.set(n,this.jsonDoc.json.textures.length),this.jsonDoc.json.textures.push(r));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 i=m.mimeTypeToExtension(e.getMimeType());t.uri=this.imageURIGenerator.createURI(e,i),this.jsonDoc.resources[t.uri]=s}}}class nt{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 ht={logger:A.DEFAULT_INSTANCE,basename:"",isGLB:!0,dependencies:{}};class ot{static write(t,s=ht){const e=t.getRoot(),i={json:{asset:e.getAsset()},resources:{}},r=s.logger||A.DEFAULT_INSTANCE,n=i.json;n.asset.generator="glTF-Transform v0.8.1";const h=new rt(i,s),o=e.listBuffers().length,c=e.listTextures().length;h.bufferURIGenerator=new nt(o>1,s.basename),h.imageURIGenerator=new nt(c>1,s.basename),h.logger=t.getLogger();for(const e of t.getRoot().listExtensionsUsed())for(const t of e.dependencies)e.install(t,s.dependencies[t]);function a(t,s,e,i){const r=[];let o=0;for(const s of t){const t=h.createAccessorDef(s);t.bufferView=n.bufferViews.length;const e=p.pad(s.getArray().buffer);t.byteOffset=o,o+=e.byteLength,r.push(e),h.accessorIndexMap.set(s,n.accessors.length),n.accessors.push(t)}const u={buffer:s,byteOffset:e,byteLength:p.concat(r).byteLength};return i&&(u.target=i),n.bufferViews.push(u),{buffers:r,byteLength:o}}function l(t,s,e){const i=t[0].getCount();let r=0;for(const s of t){const t=h.createAccessorDef(s);t.bufferView=n.bufferViews.length,t.byteOffset=r;const e=s.getElementSize(),i=s.getComponentSize();r+=p.padNumber(e*i),h.accessorIndexMap.set(s,n.accessors.length),n.accessors.push(t)}const o=i*r,u=new ArrayBuffer(o),c=new DataView(u);for(let s=0;s<i;s++){let e=0;for(const i of t){const t=i.getElementSize(),n=i.getComponentSize(),h=i.getComponentType(),o=i.getArray();for(let i=0;i<t;i++){const u=s*r+e+i*n,a=o[s*t+i];switch(h){case 5126:c.setFloat32(u,a,!0);break;case 5120:c.setInt8(u,a);break;case 5122:c.setInt16(u,a,!0);break;case 5121:c.setUint8(u,a);break;case 5123:c.setUint16(u,a,!0);break;case 5125:c.setUint32(u,a,!0);break;default:throw new Error("Unexpected component type: "+h)}}e+=p.padNumber(t*n)}}return n.bufferViews.push({buffer:s,byteOffset:e,byteLength:o,byteStride:r,target:34962}),{byteLength:o,buffers:[u]}}const f=new Map;for(const s of t.getGraph().getLinks()){if(s.getParent()===e)continue;const t=s.getChild();if(t instanceof _){const e=f.get(t)||[];e.push(s),f.set(t,e)}}return n.accessors=[],n.bufferViews=[],n.samplers=[],n.textures=[],n.images=e.listTextures().map((t,s)=>{const e=h.createPropertyDef(t);return t.getMimeType()&&(e.mimeType=t.getMimeType()),t.getImage()&&h.createImageData(e,t.getImage(),t),h.imageIndexMap.set(t,s),e}),t.getRoot().listExtensionsUsed().filter(t=>t.prewriteTypes.includes(u.ACCESSOR)).forEach(t=>t.prewrite(h,u.ACCESSOR)),n.buffers=[],e.listBuffers().forEach(t=>{const e=h.createPropertyDef(t),r=new Map,o=new Set,u=new Set,c=new Set,d=t.listParents().filter(t=>!(t instanceof X));for(const t of d){if(!(t instanceof _))throw new Error("Unimplemented buffer reference: "+t);if(h.accessorIndexMap.has(t))continue;let s=!1,e=!1,i=!1,n=!1;const a=f.get(t)||[];for(const t of a)t instanceof F?s=!0:t instanceof D?e=!0:"inverseBindMatrices"===t.getName()?i=!0:n=!0;if(s||e||i||n||(n=!0),!s||e||i||n)if(!e||s||i||n)if(!i||s||e||n){if(!n||s||e||i)throw new Error("Attribute, index, or IBM accessors must be used only for that purpose.");c.add(t)}else u.add(t);else o.add(t);else{const s=a[0].getParent(),e=r.get(s)||new Set;e.add(t),r.set(s,e)}}const g=[],w=n.buffers.length;let m,v=0;if(o.size){const t=a(Array.from(o),w,v,34963);v+=t.byteLength,g.push(...t.buffers)}for(const t of Array.from(r.values()))if(t.size){const s=l(Array.from(t),w,v);v+=s.byteLength,g.push(...s.buffers)}if(u.size){const t=a(Array.from(u),w,v);v+=t.byteLength,g.push(...t.buffers)}if(c.size){const t=a(Array.from(c),w,v);v+=t.byteLength,g.push(...t.buffers)}if(h.imageBufferViews.length)for(let t=0;t<h.imageBufferViews.length;t++)n.bufferViews[n.images[t].bufferView].byteOffset=v,v+=h.imageBufferViews[t].byteLength,g.push(h.imageBufferViews[t]);if(h.otherBufferViews.has(t))for(const s of h.otherBufferViews.get(t))n.bufferViews.push({buffer:w,byteOffset:v,byteLength:s.byteLength}),h.otherBufferViewsIndexMap.set(s,n.bufferViews.length-1),v+=s.byteLength,g.push(s);v?(s.isGLB?m="@glb.bin":(m=h.bufferURIGenerator.createURI(t,"bin"),e.uri=m),e.byteLength=v,i.resources[m]=p.concat(g),n.buffers.push(e)):h.logger.warn(`@gltf-transform/core: Skipping empty buffer, "${t.getName()}".`)}),e.listAccessors().find(t=>!t.getBuffer())&&r.warn("Skipped writing one or more Accessors: no Buffer assigned."),n.materials=e.listMaterials().map((t,s)=>{const e=h.createPropertyDef(t);if(e.alphaMode=t.getAlphaMode(),"MASK"===t.getAlphaMode()&&(e.alphaCutoff=t.getAlphaCutoff()),e.doubleSided=t.getDoubleSided(),e.pbrMetallicRoughness={},e.pbrMetallicRoughness.baseColorFactor=t.getBaseColorFactor(),e.emissiveFactor=t.getEmissiveFactor(),e.pbrMetallicRoughness.roughnessFactor=t.getRoughnessFactor(),e.pbrMetallicRoughness.metallicFactor=t.getMetallicFactor(),t.getBaseColorTexture()){const s=t.getBaseColorTexture(),i=t.getBaseColorTextureInfo();e.pbrMetallicRoughness.baseColorTexture=h.createTextureInfoDef(s,i)}if(t.getEmissiveTexture()){const s=t.getEmissiveTexture(),i=t.getEmissiveTextureInfo();e.emissiveTexture=h.createTextureInfoDef(s,i)}if(t.getNormalTexture()){const s=t.getNormalTexture(),i=t.getNormalTextureInfo(),r=h.createTextureInfoDef(s,i);1!==t.getNormalScale()&&(r.scale=t.getNormalScale()),e.normalTexture=r}if(t.getOcclusionTexture()){const s=t.getOcclusionTexture(),i=t.getOcclusionTextureInfo(),r=h.createTextureInfoDef(s,i);1!==t.getOcclusionStrength()&&(r.strength=t.getOcclusionStrength()),e.occlusionTexture=r}if(t.getMetallicRoughnessTexture()){const s=t.getMetallicRoughnessTexture(),i=t.getMetallicRoughnessTextureInfo();e.pbrMetallicRoughness.metallicRoughnessTexture=h.createTextureInfoDef(s,i)}return h.materialIndexMap.set(t,s),e}),n.meshes=e.listMeshes().map((t,s)=>{const e=h.createPropertyDef(t);let i;return e.primitives=t.listPrimitives().map(t=>{const s={attributes:{}};s.mode=t.getMode(),t.getMaterial()&&(s.material=h.materialIndexMap.get(t.getMaterial())),Object.keys(t.getExtras()).length&&(s.extras=t.getExtras()),t.getIndices()&&(s.indices=h.accessorIndexMap.get(t.getIndices()));for(const e of t.listSemantics())s.attributes[e]=h.accessorIndexMap.get(t.getAttribute(e));for(const e of t.listTargets()){const t={};for(const s of e.listSemantics())t[s]=h.accessorIndexMap.get(e.getAttribute(s));s.targets=s.targets||[],s.targets.push(t)}return t.listTargets().length&&!i&&(i=t.listTargets().map(t=>t.getName())),s}),t.getWeights().length&&(e.weights=t.getWeights()),i&&(e.extras=e.extras||{},e.extras.targetNames=i),h.meshIndexMap.set(t,s),e}),n.cameras=e.listCameras().map((t,s)=>{const e=h.createPropertyDef(t);return e.type=t.getType(),"perspective"===e.type?e.perspective={znear:t.getZNear(),zfar:t.getZFar(),yfov:t.getYFov(),aspectRatio:t.getAspectRatio()}:e.orthographic={znear:t.getZNear(),zfar:t.getZFar(),xmag:t.getXMag(),ymag:t.getYMag()},h.cameraIndexMap.set(t,s),e}),n.nodes=e.listNodes().map((t,s)=>{const e=h.createPropertyDef(t);return e.translation=t.getTranslation(),e.rotation=t.getRotation(),e.scale=t.getScale(),t.getWeights().length&&(e.weights=t.getWeights()),h.nodeIndexMap.set(t,s),e}),n.skins=e.listSkins().map((t,s)=>{const e=h.createPropertyDef(t);return t.getInverseBindMatrices()&&(e.inverseBindMatrices=h.accessorIndexMap.get(t.getInverseBindMatrices())),t.getSkeleton()&&(e.skeleton=h.nodeIndexMap.get(t.getSkeleton())),e.joints=t.listJoints().map(t=>h.nodeIndexMap.get(t)),h.skinIndexMap.set(t,s),e}),e.listNodes().forEach((t,s)=>{const e=n.nodes[s];t.getMesh()&&(e.mesh=h.meshIndexMap.get(t.getMesh())),t.getCamera()&&(e.camera=h.cameraIndexMap.get(t.getCamera())),t.getSkin()&&(e.skin=h.skinIndexMap.get(t.getSkin())),t.listChildren().length>0&&(e.children=t.listChildren().map(t=>h.nodeIndexMap.get(t)))}),n.animations=e.listAnimations().map(t=>{const s=h.createPropertyDef(t),e=new Map;return s.samplers=t.listSamplers().map((t,s)=>{const i=h.createPropertyDef(t);return i.input=h.accessorIndexMap.get(t.getInput()),i.output=h.accessorIndexMap.get(t.getOutput()),i.interpolation=t.getInterpolation(),e.set(t,s),i}),s.channels=t.listChannels().map(t=>{const s=h.createPropertyDef(t);return s.sampler=e.get(t.getSampler()),s.target={node:h.nodeIndexMap.get(t.getTargetNode()),path:t.getTargetPath()},s}),s}),n.scenes=e.listScenes().map(t=>{const s=h.createPropertyDef(t);return s.nodes=t.listChildren().map(t=>h.nodeIndexMap.get(t)),s}),n.extensionsUsed=e.listExtensionsUsed().map(t=>t.extensionName),n.extensionsRequired=e.listExtensionsRequired().map(t=>t.extensionName),e.listExtensionsUsed().forEach(t=>t.write(h)),function(t){const s=[];for(const e in t){const i=t[e];Array.isArray(i)&&0===i.length?s.push(e):null!==i&&""!==i||s.push(i)}for(const e of s)delete t[e]}(n),i}}class ut{constructor(){this.Nt=A.DEFAULT_INSTANCE,this.dt=[],this._t={}}setLogger(t){return this.Nt=t,this}registerExtensions(t){return this.dt.push(...t),this}registerDependencies(t){return Object.assign(this._t,t),this}readJSON(t){return et.read(t,{extensions:this.dt,dependencies:this._t,logger:this.Nt})}writeJSON(t,s){if(s.isGLB&&1!==t.getRoot().listBuffers().length)throw new Error("GLB must have exactly 1 buffer.");return s.dependencies={...this._t,...s.dependencies},ot.write(t,s)}binaryToJSON(t){const s=new Uint32Array(t,0,3);if(1179937895!==s[0])throw new Error("Invalid glTF asset.");if(2!==s[1])throw new Error(`Unsupported glTF binary version, "${s[1]}".`);const e=new Uint32Array(t,12,2),i=e[0],r=new Uint32Array(t,20+i,2);if(1313821514!==e[1]||5130562!==r[1])throw new Error("Unexpected GLB layout.");const n=p.decodeText(t.slice(20,20+i)),h=20+i+8;return{json:JSON.parse(n),resources:{"@glb.bin":t.slice(h,h+r[0])}}}readBinary(t){return this.readJSON(this.binaryToJSON(t))}writeBinary(t){const{json:s,resources:e}=this.writeJSON(t,{basename:"",isGLB:!0,logger:this.Nt,dependencies:this._t}),i=JSON.stringify(s),r=p.pad(p.encodeText(i),32),n=new Uint32Array([r.byteLength,1313821514]).buffer,h=p.concat([n,r]),o=p.pad(Object.values(e)[0]||new ArrayBuffer(0),0),u=new Uint32Array([o.byteLength,5130562]).buffer,c=p.concat([u,o]),a=new Uint32Array([1179937895,2,12+h.byteLength+c.byteLength]).buffer;return p.concat([a,h,c])}}class ct extends ut{constructor(){super(),this.lastReadBytes=0,this.lastWriteBytes=0,this.Bt=require("fs"),this.Lt=require("path")}read(t){const s=this.readAsJSON(t);return et.read(s,{extensions:this.dt,dependencies:this._t,logger:this.Nt})}readAsJSON(t){return t.match(/\.glb$/)||t.match(/^data:application\/octet-stream;/)?this.Ot(t):this.kt(t)}write(t,s){t.match(/\.glb$/)?this.Pt(t,s):this.Ut(t,s)}Ot(t){const s=this.Bt.readFileSync(t),e=p.trim(s);return this.lastReadBytes=e.byteLength,this.binaryToJSON(e)}kt(t){this.lastReadBytes=0;const s=this.Lt.dirname(t),e=this.Bt.readFileSync(t,"utf8");this.lastReadBytes+=e.length;const i={json:JSON.parse(e),resources:{}};return[...i.json.images||[],...i.json.buffers||[]].forEach(t=>{if(t.uri)if(t.uri.match(/data:/)){const s=`__${S()}.${w.extension(t.uri)}`;i.resources[s]=p.createBufferFromDataURI(t.uri),t.uri=s}else{const e=this.Lt.resolve(s,t.uri);i.resources[t.uri]=p.trim(this.Bt.readFileSync(e)),this.lastReadBytes+=i.resources[t.uri].byteLength}}),i}Ut(t,s){this.lastWriteBytes=0;const{json:e,resources:i}=ot.write(s,{basename:w.basename(t),isGLB:!1,logger:this.Nt,dependencies:this._t}),{Bt:r,Lt:n}=this,h=n.dirname(t),o=JSON.stringify(e,null,2);this.lastWriteBytes+=o.length,r.writeFileSync(t,o),Object.keys(i).forEach(t=>{const s=Buffer.from(i[t]);r.writeFileSync(n.join(h,t),s),this.lastWriteBytes+=s.byteLength})}Pt(t,s){const e=Buffer.from(this.writeBinary(s));this.Bt.writeFileSync(t,e),this.lastWriteBytes=e.byteLength}}const at={};class lt extends ut{constructor(t=at){super(),this.Ft=t}read(t){return this.readAsJSON(t).then(t=>this.readJSON(t))}readAsJSON(t){return t.match(/\.glb$/)||t.match(/^data:application\/octet-stream;/)?this.Ot(t):this.kt(t)}kt(t){const s={json:{},resources:{}};return fetch(t,this.Ft).then(t=>t.json()).then(t=>{s.json=t;const e=[...t.images||[],...t.buffers||[]].map(t=>{if(t.uri)return fetch(t.uri,this.Ft).then(t=>t.arrayBuffer()).then(e=>{s.resources[t.uri]=e})});return Promise.all(e).then(()=>s)})}Ot(t){return fetch(t,this.Ft).then(t=>t.arrayBuffer()).then(t=>this.binaryToJSON(t))}}export{_ as Accessor,B as Animation,L as AnimationChannel,O as AnimationSampler,k as Buffer,p as BufferUtils,I as COPY_IDENTITY,P as Camera,g as ColorUtils,K as Document,Z as Extension,U as ExtensionProperty,w as FileUtils,o as GLB_BUFFER,l as Graph,f as GraphChild,d as GraphChildList,m as ImageUtils,a as Link,A as Logger,z as Material,T as MathUtils,V as Mesh,J as Node,ct as NodeIO,$ as Primitive,W as PrimitiveTarget,R as Property,u as PropertyType,Q as ReaderContext,X as Root,q as Scene,H as Skin,Y as Texture,G as TextureInfo,lt as WebIO,rt as WriterContext,S as uuid};
+import{fromRotationTranslationScale as t,getTranslation as s,getRotation as e,getScaling as i,multiply as r,determinant as n}from"gl-matrix/mat4";import{length as h}from"gl-matrix/vec3";const o="@glb.bin";var u;function c(t,s,e,i){var r,n=arguments.length,h=n<3?s:null===i?i=Object.getOwnPropertyDescriptor(s,e):i;if("object"==typeof Reflect&&"function"==typeof Reflect.decorate)h=Reflect.decorate(t,s,e,i);else for(var o=t.length-1;o>=0;o--)(r=t[o])&&(h=(n<3?r(h):n>3?r(s,e,h):r(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"}(u||(u={}));class a{constructor(t,s,e){if(this.t=t,this.s=s,this.i=e,this.h=!1,this.o=[],!s.canLink(e))throw new Error("Cannot link disconnected graphs/documents.")}getName(){return this.t}getParent(){return this.s}getChild(){return this.i}setChild(t){return this.i=t,this}dispose(){this.h||(this.h=!0,this.o.forEach(t=>t()),this.o.length=0)}onDispose(t){return this.o.push(t),this}isDisposed(){return this.h}}class l{constructor(){this.u=new Set,this.l=new Set,this.p=new Map,this.g=new Map,this.o={}}on(t,s){return this.o[t]=this.o[t]||[],this.o[t].push(s),this}emit(t,s){for(const e of this.o[t]||[])e(s);return this}getLinks(){return Array.from(this.l)}listParents(t){const s=this.g.get(t)||this.u;return Array.from(s).map(t=>t.getParent())}listChildren(t){const s=this.p.get(t)||this.u;return Array.from(s).map(t=>t.getChild())}disconnectChildren(t){return(this.p.get(t)||this.u).forEach(t=>t.dispose()),this}disconnectParents(t,s){let e=Array.from(this.g.get(t)||this.u);return s&&(e=e.filter(t=>s(t.getParent()))),e.forEach(t=>t.dispose()),this}swapChild(t,s,e){const i=this.p.get(t)||this.u;return Array.from(i).filter(t=>t.getChild()===s).forEach(t=>{this.g.get(s).delete(t),t.setChild(e),this.g.has(e)||this.g.set(e,new Set),this.g.get(e).add(t)}),this}link(t,s,e){if(!e)return null;const i=new a(t,s,e);return this.registerLink(i),i}registerLink(t){this.l.add(t);const s=t.getParent();this.p.has(s)||this.p.set(s,new Set),this.p.get(s).add(t);const e=t.getChild();return this.g.has(e)||this.g.set(e,new Set),this.g.get(e).add(t),t.onDispose(()=>this.unlink(t)),t}unlink(t){return this.l.delete(t),this.p.get(t.getParent()).delete(t),this.g.get(t.getChild()).delete(t),this}}function f(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 d(t,s){}class p{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 i=0;for(const s of t)e.set(new Uint8Array(s),i),i+=s.byteLength;return e.buffer}static pad(t,s=0){const e=this.padNumber(t.byteLength);if(e!==t.byteLength){const i=new Uint8Array(e);if(i.set(new Uint8Array(t)),0!==s)for(let r=t.byteLength;r<e;r++)i[r]=s;return i.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),i=new DataView(s);let r=t.byteLength;for(;r--;)if(e.getUint8(r)!==i.getUint8(r))return!1;return!0}}class g{static hexToFactor(t,s){return t=Math.floor(t),s[0]=(t>>16&255)/255,s[1]=(t>>8&255)/255,s[2]=(255&t)/255,this.convertSRGBToLinear(s,s)}static factorToHex(t){const s=[...t],[e,i,r]=this.convertLinearToSRGB(t,s);return 255*e<<16^255*i<<8^255*r<<0}static convertSRGBToLinear(t,s){for(let e=0;e<3;e++)s[e]=t[e]<.04045?.0773993808*t[e]:Math.pow(.9478672986*t[e]+.0521327014,2.4);return s}static convertLinearToSRGB(t,s){for(let e=0;e<3;e++)s[e]=t[e]<.0031308?12.92*t[e]:1.055*Math.pow(t[e],.41666)-.055;return s}}class w{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 m{static getSize(t,s){switch(s){case"image/png":return this.m(t);case"image/jpeg":return this.v(t);case"image/webp":return this.T(t);case"image/ktx2":return this.A(t);default:return null}}static getChannels(t,s){switch(s){case"image/png":return 4;case"image/jpeg":return 3;case"image/webp":case"image/ktx2":default:return 4}}static getMemSize(t,s){if("image/ktx2"===s){const s=new DataView(t);v(s);const e=s.getUint32(40,!0),i=80;let r=0;for(let t=0;t<e;t++)r+=y(s,i+3*t*8+16,!0)||y(s,i+3*t*8+8,!0);return r}const e=this.getSize(t,s),i=this.getChannels(t,s);return e?e[0]*e[1]*i:null}static v(t){let s,e,i=new DataView(t,4);for(;i.byteLength;){if(s=i.getUint16(0,!1),x(i,s),e=i.getUint8(s+1),192===e||193===e||194===e)return[i.getUint16(s+7,!1),i.getUint16(s+5,!1)];i=new DataView(t,i.byteOffset+s+2)}throw new TypeError("Invalid JPG, no size found")}static m(t){const s=new DataView(t);return"CgBI"===p.decodeText(t.slice(12,16))?[s.getUint32(32,!1),s.getUint32(36,!1)]:[s.getUint32(16,!1),s.getUint32(20,!1)]}static T(t){const s=p.decodeText(t.slice(0,4)),e=p.decodeText(t.slice(8,12));if("RIFF"!==s||"WEBP"!==e)return null;const i=new DataView(t);let r=12;for(;r<t.byteLength;){const s=p.decodeText(t.slice(r,r+4)),e=i.getUint32(r+4,!0);if("VP8 "===s)return[16383&i.getInt16(r+14,!0),16383&i.getInt16(r+16,!0)];if("VP8L"===s){const t=i.getUint8(r+9),s=i.getUint8(r+10),e=i.getUint8(r+11);return[1+((63&s)<<8|t),1+((15&i.getUint8(r+12))<<10|e<<2|(192&s)>>6)]}r+=8+e+e%2}return null}static A(t){v(new DataView(t));const s=new DataView(t);return[s.getUint32(20,!0),s.getUint32(24,!0)]}static mimeTypeToExtension(t){return"image/jpeg"===t?"jpg":t.split("/").pop()}static extensionToMimeType(t){return"jpg"===t?"image/jpeg":"image/"+t}}function v(t){const s=t.buffer.slice(t.byteOffset+1,t.byteOffset+7);if("KTX 20"!==p.decodeText(s))throw new TypeError("Corrupt KTX2.")}function x(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")}function y(t,s,e){const i=t.getUint32(s,e),r=t.getUint32(s+4,e);return e?i+2**32*r:2**32*i+r}class T{static identity(t){return t}static denormalize(t,s){switch(s){case 5126:return t;case 5123:return t/65535;case 5121:return t/255;case 5122:return Math.max(t/32767,-1);case 5120:return Math.max(t/127,-1)}}static normalize(t,s){switch(s){case 5126:return t;case 5123:return Math.round(65535*t);case 5121:return Math.round(255*t);case 5122:return Math.round(32767*t);case 5120:return Math.round(127*t)}}}class A{constructor(t){this.verbosity=t}debug(t){this.verbosity<=A.Verbosity.DEBUG&&console.debug(t)}info(t){this.verbosity<=A.Verbosity.INFO&&console.info(t)}warn(t){this.verbosity<=A.Verbosity.WARN&&console.warn(t)}error(t){this.verbosity<=A.Verbosity.ERROR&&console.error(t)}}A.Verbosity={SILENT:4,ERROR:3,WARN:2,INFO:1,DEBUG:0},A.DEFAULT_INSTANCE=new A(A.Verbosity.INFO);const b="23456789abdegjkmnpqrvwxyzABDEGJKMNPQRVWXYZ",E=new Set,M=function(){let t="";for(let s=0;s<6;s++)t+=b.charAt(Math.floor(Math.random()*b.length));return t},S=function(){for(let t=0;t<999;t++){const t=M();if(!E.has(t))return E.add(t),t}},I=t=>t;class R extends class{constructor(t){this.h=!1,this.graph=t}canLink(t){return this.graph===t.graph}isDisposed(){return this.h}dispose(){this.graph.disconnectChildren(this),this.graph.disconnectParents(this),this.h=!0}detach(){return this.graph.disconnectParents(this),this}swap(t,s){return this.graph.swapChild(this,t,s),this}addGraphChild(t,s){return t.push(s),s.onDispose(()=>{const e=t.filter(t=>t!==s);t.length=0;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.M={},this.t="",this.t=s}getName(){return this.t}setName(t){return this.t=t,this}getExtras(){return this.M}setExtras(t){return this.M=t,this}clone(){const t=new(0,this.constructor)(this.graph).copy(this,I);return this.graph.emit("clone",t),t}copy(t,s=I){return this.t=t.t,this.M=JSON.parse(JSON.stringify(t.M)),this}detach(){return this.graph.disconnectParents(this,t=>"Root"!==t.propertyType),this}listParents(){return this.listGraphParents()}}const C="Pass extension name (string) as lookup token, not a constructor.";class N extends R{constructor(){super(...arguments),this.extensions=[]}copy(t,s=I){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(C);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(C);const e=this.getExtension(t);return e&&this.removeGraphChild(this.extensions,e),s?(s.S(this),this.addGraphChild(this.extensions,this.graph.link(t,this,s))):this}listExtensions(){return this.extensions.map(t=>t.getChild())}}c([d],N.prototype,"extensions",void 0);class _ extends N{constructor(){super(...arguments),this.propertyType=u.ACCESSOR,this.I=null,this.R="SCALAR",this.C=null,this.N=!1,this._=T.identity,this.B=T.identity,this.buffer=null}copy(t,s=I){return super.copy(t,s),this.R=t.R,this.C=t.C,this.N=t.N,this._=t._,this.B=t.B,t.I&&(this.I=t.I.slice()),t.buffer&&this.setBuffer(s(t.buffer.getChild())),this}static getElementSize(t){switch(t){case"SCALAR":return 1;case"VEC2":return 2;case"VEC3":return 3;case"VEC4":case"MAT2":return 4;case"MAT3":return 9;case"MAT4":return 16;default:throw new Error("Unexpected type: "+t)}}static getComponentSize(t){switch(t){case 5120:case 5121:return 1;case 5122:case 5123:return 2;case 5125:case 5126:return 4;default:throw new Error("Unexpected component type: "+t)}}getMinNormalized(t){const s=this.getElementSize();this.getMin(t);for(let e=0;e<s;e++)t[e]=this.B(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 i=0;i<s*e;i+=e)for(let s=0;s<e;s++){const e=this.I[i+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.B(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 i=0;i<s*e;i+=e)for(let s=0;s<e;s++){const e=this.I[i+s];Number.isFinite(e)&&(t[s]=Math.max(t[s],e))}return t}getCount(){return this.I.length/this.getElementSize()}getType(){return this.R}setType(t){return this.R=t,this}getElementSize(){return _.getElementSize(this.R)}getComponentSize(){return this.I.BYTES_PER_ELEMENT}getComponentType(){return this.C}getNormalized(){return this.N}setNormalized(t){return this.N=t,t?(this.B=t=>T.denormalize(t,this.C),this._=t=>T.normalize(t,this.C)):(this.B=T.identity,this._=T.identity),this}getScalar(t){const s=this.getElementSize();return this.B(this.I[t*s])}setScalar(t,s){return this.I[t*this.getElementSize()]=this._(s),this}getElement(t,s){const e=this.getElementSize();for(let i=0;i<e;i++)s[i]=this.B(this.I[t*e+i]);return s}setElement(t,s){const e=this.getElementSize();for(let i=0;i<e;i++)this.I[t*e+i]=this._(s[i]);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.I}setArray(t){return this.C=function(t){switch(t.constructor){case Float32Array:return 5126;case Uint32Array:return 5125;case Uint16Array:return 5123;case Uint8Array:return 5121;case Int16Array:return 5122;case Int8Array:return 5120;default:throw new Error("Unknown accessor componentType.")}}(t),this.I=t,this}getByteLength(){return this.I.byteLength}}_.Type={SCALAR:"SCALAR",VEC2:"VEC2",VEC3:"VEC3",VEC4:"VEC4",MAT3:"MAT3",MAT4:"MAT4"},_.ComponentType={BYTE:5120,UNSIGNED_BYTE:5121,SHORT:5122,UNSIGNED_SHORT:5123,UNSIGNED_INT:5125,FLOAT:5126},c([f],_.prototype,"buffer",void 0);class B extends N{constructor(){super(...arguments),this.propertyType=u.ANIMATION,this.channels=[],this.samplers=[]}copy(t,s=I){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())}}c([d],B.prototype,"channels",void 0),c([d],B.prototype,"samplers",void 0);class L extends R{constructor(){super(...arguments),this.propertyType=u.ANIMATION_CHANNEL,this.L=null,this.targetNode=null,this.sampler=null}copy(t,s=I){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}}c([f],L.prototype,"targetNode",void 0),c([f],L.prototype,"sampler",void 0);class O extends R{constructor(){super(...arguments),this.propertyType=u.ANIMATION_SAMPLER,this.O="LINEAR",this.input=null,this.output=null}copy(t,s=I){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}}c([f],O.prototype,"input",void 0),c([f],O.prototype,"output",void 0);class k extends N{constructor(){super(...arguments),this.propertyType=u.BUFFER}copy(t,s=I){return super.copy(t,s),this.k=t.k,this}getURI(){return this.k}setURI(t){return this.k=t,this}}class P extends N{constructor(){super(...arguments),this.propertyType=u.CAMERA,this.R="perspective"}copy(t,s=I){return super.copy(t,s),this.R=t.R,this.P=t.P,this.U=t.U,this.F=t.F,this.D=t.D,this.j=t.j,this.G=t.G,this}getType(){return this.R}setType(t){return this.R=t,this}getZNear(){return this.P}setZNear(t){return this.P=t,this}getZFar(){return this.U}setZFar(t){return this.U=t,this}getAspectRatio(){return this.F}setAspectRatio(t){return this.F=t,this}getYFov(){return this.D}setYFov(t){return this.D=t,this}getXMag(){return this.j}setXMag(t){return this.j=t,this}getYMag(){return this.G}setYMag(t){return this.G=t,this}}class U extends R{constructor(t,s){super(t),this.V=s,this.V.addExtensionProperty(this)}dispose(){this.V.removeExtensionProperty(this),super.dispose()}S(t){if(!this.parentTypes.includes(t.propertyType))throw new Error(`Parent "${t.propertyType}" invalid for child "${this.propertyType}".`)}}class F extends a{constructor(){super(...arguments),this.semantic=""}copy(t){return this.semantic=t.semantic,this}}class D extends a{copy(t){return this}}class j extends l{linkAttribute(t,s,e){if(!e)return null;const i=new F(t,s,e);return this.registerLink(i),i}linkIndex(t,s,e){if(!e)return null;const i=new D(t,s,e);return this.registerLink(i),i}}class G extends N{constructor(){super(...arguments),this.propertyType=u.TEXTURE_INFO,this.J=0,this.$=null,this.W=null,this.q=10497,this.H=10497}copy(t,s=I){return super.copy(t,s),this.J=t.J,this.$=t.$,this.W=t.W,this.q=t.q,this.H=t.H,this}getTexCoord(){return this.J}setTexCoord(t){return this.J=t,this}getMagFilter(){return this.$}setMagFilter(t){return this.$=t,this}getMinFilter(){return this.W}setMinFilter(t){return this.W=t,this}getWrapS(){return this.q}setWrapS(t){return this.q=t,this}getWrapT(){return this.H}setWrapT(t){return this.H=t,this}}G.TextureWrapMode={CLAMP_TO_EDGE:33071,MIRRORED_REPEAT:33648,REPEAT:10497},G.TextureMagFilter={NEAREST:9728,LINEAR:9729},G.TextureMinFilter={NEAREST:9728,LINEAR:9729,NEAREST_MIPMAP_NEAREST:9984,LINEAR_MIPMAP_NEAREST:9985,NEAREST_MIPMAP_LINEAR:9986,LINEAR_MIPMAP_LINEAR:9987};class z extends N{constructor(){super(...arguments),this.propertyType=u.MATERIAL,this.Y="OPAQUE",this.X=.5,this.K=!1,this.Z=[1,1,1,1],this.tt=[0,0,0],this.st=1,this.et=1,this.it=1,this.rt=1,this.baseColorTexture=null,this.baseColorTextureInfo=this.graph.link("baseColorTextureInfo",this,new G(this.graph)),this.emissiveTexture=null,this.emissiveTextureInfo=this.graph.link("emissiveTextureInfo",this,new G(this.graph)),this.normalTexture=null,this.normalTextureInfo=this.graph.link("normalTextureInfo",this,new G(this.graph)),this.occlusionTexture=null,this.occlusionTextureInfo=this.graph.link("occlusionTextureInfo",this,new G(this.graph)),this.metallicRoughnessTexture=null,this.metallicRoughnessTextureInfo=this.graph.link("metallicRoughnessTextureInfo",this,new G(this.graph))}copy(t,s=I){return super.copy(t,s),this.Y=t.Y,this.X=t.X,this.K=t.K,this.Z=[...t.Z],this.tt=[...t.tt],this.st=t.st,this.et=t.et,this.it=t.it,this.rt=t.rt,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.K}setDoubleSided(t){return this.K=t,this}getAlpha(){return this.Z[3]}setAlpha(t){return this.Z[3]=t,this}getAlphaMode(){return this.Y}setAlphaMode(t){return this.Y=t,this}getAlphaCutoff(){return this.X}setAlphaCutoff(t){return this.X=t,this}getBaseColorFactor(){return this.Z}setBaseColorFactor(t){return this.Z=t,this}getBaseColorHex(){return g.factorToHex(this.Z)}setBaseColorHex(t){return g.hexToFactor(t,this.Z),this}getBaseColorTexture(){return this.baseColorTexture?this.baseColorTexture.getChild():null}getBaseColorTextureInfo(){return this.baseColorTexture?this.baseColorTextureInfo.getChild():null}setBaseColorTexture(t){return this.baseColorTexture=this.graph.link("baseColorTexture",this,t),this}getEmissiveFactor(){return this.tt}setEmissiveFactor(t){return this.tt=t,this}getEmissiveHex(){return g.factorToHex(this.tt)}setEmissiveHex(t){return g.hexToFactor(t,this.tt),this}getEmissiveTexture(){return this.emissiveTexture?this.emissiveTexture.getChild():null}getEmissiveTextureInfo(){return this.emissiveTexture?this.emissiveTextureInfo.getChild():null}setEmissiveTexture(t){return this.emissiveTexture=this.graph.link("emissiveTexture",this,t),this}getNormalScale(){return this.st}setNormalScale(t){return this.st=t,this}getNormalTexture(){return this.normalTexture?this.normalTexture.getChild():null}getNormalTextureInfo(){return this.normalTexture?this.normalTextureInfo.getChild():null}setNormalTexture(t){return this.normalTexture=this.graph.link("normalTexture",this,t),this}getOcclusionStrength(){return this.et}setOcclusionStrength(t){return this.et=t,this}getOcclusionTexture(){return this.occlusionTexture?this.occlusionTexture.getChild():null}getOcclusionTextureInfo(){return this.occlusionTexture?this.occlusionTextureInfo.getChild():null}setOcclusionTexture(t){return this.occlusionTexture=this.graph.link("occlusionTexture",this,t),this}getRoughnessFactor(){return this.it}setRoughnessFactor(t){return this.it=t,this}getMetallicFactor(){return this.rt}setMetallicFactor(t){return this.rt=t,this}getMetallicRoughnessTexture(){return this.metallicRoughnessTexture?this.metallicRoughnessTexture.getChild():null}getMetallicRoughnessTextureInfo(){return this.metallicRoughnessTexture?this.metallicRoughnessTextureInfo.getChild():null}setMetallicRoughnessTexture(t){return this.metallicRoughnessTexture=this.graph.link("metallicRoughnessTexture",this,t),this}}c([f],z.prototype,"baseColorTexture",void 0),c([f],z.prototype,"baseColorTextureInfo",void 0),c([f],z.prototype,"emissiveTexture",void 0),c([f],z.prototype,"emissiveTextureInfo",void 0),c([f],z.prototype,"normalTexture",void 0),c([f],z.prototype,"normalTextureInfo",void 0),c([f],z.prototype,"occlusionTexture",void 0),c([f],z.prototype,"occlusionTextureInfo",void 0),c([f],z.prototype,"metallicRoughnessTexture",void 0),c([f],z.prototype,"metallicRoughnessTextureInfo",void 0);class V extends N{constructor(){super(...arguments),this.propertyType=u.MESH,this.nt=[],this.primitives=[]}copy(t,s=I){return super.copy(t,s),this.nt=[...t.nt],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.nt}setWeights(t){return this.nt=t,this}}c([d],V.prototype,"primitives",void 0);class J extends N{constructor(){super(...arguments),this.propertyType=u.NODE,this.ht=[0,0,0],this.ot=[0,0,0,1],this.ut=[1,1,1],this.nt=[],this.s=null,this.camera=null,this.mesh=null,this.skin=null,this.children=[]}copy(t,s=I){return super.copy(t,s),this.ht=[...t.ht],this.ot=[...t.ot],this.ut=[...t.ut],this.nt=[...t.nt],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!==I&&(this.clearGraphChildList(this.children),t.children.forEach(t=>this.addChild(s(t.getChild())))),this}getTranslation(){return this.ht}getRotation(){return this.ot}getScale(){return this.ut}setTranslation(t){return this.ht=t,this}setRotation(t){return this.ot=t,this}setScale(t){return this.ut=t,this}getMatrix(){return t([],this.ot,this.ht,this.ut)}getWorldTranslation(){return s([],this.getWorldMatrix())}getWorldRotation(){return e([],this.getWorldMatrix())}getWorldScale(){return i([],this.getWorldMatrix())}getWorldMatrix(){const t=[];for(let s=this;s instanceof J;s=s.s)t.push(s);let s;const e=t.pop().getMatrix();for(;s=t.pop();)r(e,e,s.getMatrix());return e}addChild(t){t.s&&t.s.removeChild(t);const s=this.graph.link("child",this,t);return this.addGraphChild(this.children,s),t.s=this,s.onDispose(()=>t.s=null),this}removeChild(t){return this.removeGraphChild(this.children,t)}listChildren(){return this.children.map(t=>t.getChild())}getParent(){return this.s}getMesh(){return this.mesh?this.mesh.getChild():null}setMesh(t){return this.mesh=this.graph.link("mesh",this,t),this}getCamera(){return this.camera?this.camera.getChild():null}setCamera(t){return this.camera=this.graph.link("camera",this,t),this}getSkin(){return this.skin?this.skin.getChild():null}setSkin(t){return this.skin=this.graph.link("skin",this,t),this}getWeights(){return this.nt}setWeights(t){return this.nt=t,this}traverse(t){t(this);for(const s of this.listChildren())s.traverse(t);return this}}c([f],J.prototype,"camera",void 0),c([f],J.prototype,"mesh",void 0),c([f],J.prototype,"skin",void 0),c([d],J.prototype,"children",void 0);class $ extends N{constructor(){super(...arguments),this.propertyType=u.PRIMITIVE,this.ct=4,this.material=null,this.indices=null,this.attributes=[],this.targets=[]}copy(t,s=I){return super.copy(t,s),this.ct=t.ct,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 i=this.graph.linkAttribute(t.toLowerCase(),this,s);return i.semantic=t,this.addGraphChild(this.attributes,i)}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.ct}setMode(t){return this.ct=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)}}c([f],$.prototype,"material",void 0),c([f],$.prototype,"indices",void 0),c([d],$.prototype,"attributes",void 0),c([d],$.prototype,"targets",void 0);class W extends R{constructor(){super(...arguments),this.propertyType=u.PRIMITIVE_TARGET,this.attributes=[]}copy(t,s=I){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 i=this.graph.linkAttribute(t.toLowerCase(),this,s);return i.semantic=t,this.addGraphChild(this.attributes,i)}listAttributes(){return this.attributes.map(t=>t.getChild())}listSemantics(){return this.attributes.map(t=>t.semantic)}}c([d],W.prototype,"attributes",void 0);class q extends N{constructor(){super(...arguments),this.propertyType=u.SCENE,this.children=[]}copy(t,s=I){return super.copy(t,s),s!==I&&(this.clearGraphChildList(this.children),t.children.forEach(t=>this.addChild(s(t.getChild())))),this}addChild(t){t.s&&t.s.removeChild(t);const s=this.graph.link("child",this,t);return this.addGraphChild(this.children,s),t.s=this,s.onDispose(()=>t.s=null),this}removeChild(t){return this.removeGraphChild(this.children,t)}listChildren(){return this.children.map(t=>t.getChild())}traverse(t){for(const s of this.listChildren())s.traverse(t);return this}}c([d],q.prototype,"children",void 0);class H extends N{constructor(){super(...arguments),this.propertyType=u.SKIN,this.skeleton=null,this.inverseBindMatrices=null,this.joints=[]}copy(t,s=I){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())}}c([f],H.prototype,"skeleton",void 0),c([f],H.prototype,"inverseBindMatrices",void 0),c([d],H.prototype,"joints",void 0);class Y extends N{constructor(){super(...arguments),this.propertyType=u.TEXTURE,this.at=null,this.lt="",this.k=""}copy(t,s=I){return super.copy(t,s),this.lt=t.lt,this.k=t.k,t.at&&(this.at=t.at.slice(0)),this}getMimeType(){return this.lt||m.extensionToMimeType(w.extension(this.k))}setMimeType(t){return this.lt=t,this}getURI(){return this.k}setURI(t){return this.k=t,this.lt=m.extensionToMimeType(w.extension(t)),this}getImage(){return this.at}setImage(t){return this.at=t,this}getSize(){return m.getSize(this.at,this.getMimeType())}}class X extends R{constructor(t){super(t),this.propertyType=u.ROOT,this.ft={generator:"glTF-Transform v0.8.4",version:"2.0"},this.dt=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.pt(t))}clone(){throw new Error("Root cannot be cloned.")}copy(t,s=I){if(super.copy(t,s),s===I)throw new Error("Root cannot be copied.");return Object.assign(this.ft,t.ft),t.accessors.forEach(t=>this.gt(s(t.getChild()))),t.animations.forEach(t=>this.wt(s(t.getChild()))),t.buffers.forEach(t=>this.vt(s(t.getChild()))),t.cameras.forEach(t=>this.xt(s(t.getChild()))),t.materials.forEach(t=>this.yt(s(t.getChild()))),t.meshes.forEach(t=>this.Tt(s(t.getChild()))),t.nodes.forEach(t=>this.At(s(t.getChild()))),t.scenes.forEach(t=>this.bt(s(t.getChild()))),t.skins.forEach(t=>this.Et(s(t.getChild()))),t.textures.forEach(t=>this.Mt(s(t.getChild()))),this}pt(t){return t instanceof q?this.bt(t):t instanceof J?this.At(t):t instanceof P?this.xt(t):t instanceof H?this.Et(t):t instanceof V?this.Tt(t):t instanceof z?this.yt(t):t instanceof Y?this.Mt(t):t instanceof B?this.wt(t):t instanceof _?this.gt(t):t instanceof k&&this.vt(t),this}getAsset(){return this.ft}listExtensionsUsed(){return Array.from(this.dt)}listExtensionsRequired(){return this.listExtensionsUsed().filter(t=>t.isRequired())}St(t){return this.dt.add(t),this}It(t){return this.dt.delete(t),this}bt(t){return this.addGraphChild(this.scenes,this.graph.link("scene",this,t))}listScenes(){return this.scenes.map(t=>t.getChild())}At(t){return this.addGraphChild(this.nodes,this.graph.link("node",this,t))}listNodes(){return this.nodes.map(t=>t.getChild())}xt(t){return this.addGraphChild(this.cameras,this.graph.link("camera",this,t))}listCameras(){return this.cameras.map(t=>t.getChild())}Et(t){return this.addGraphChild(this.skins,this.graph.link("skin",this,t))}listSkins(){return this.skins.map(t=>t.getChild())}Tt(t){return this.addGraphChild(this.meshes,this.graph.link("mesh",this,t))}listMeshes(){return this.meshes.map(t=>t.getChild())}yt(t){return this.addGraphChild(this.materials,this.graph.link("material",this,t))}listMaterials(){return this.materials.map(t=>t.getChild())}Mt(t){return this.addGraphChild(this.textures,this.graph.link("texture",this,t))}listTextures(){return this.textures.map(t=>t.getChild())}wt(t){return this.addGraphChild(this.animations,this.graph.link("animation",this,t))}listAnimations(){return this.animations.map(t=>t.getChild())}gt(t){return this.addGraphChild(this.accessors,this.graph.link("accessor",this,t))}listAccessors(){return this.accessors.map(t=>t.getChild())}vt(t){return this.addGraphChild(this.buffers,this.graph.link("buffer",this,t))}listBuffers(){return this.buffers.map(t=>t.getChild())}}c([d],X.prototype,"accessors",void 0),c([d],X.prototype,"animations",void 0),c([d],X.prototype,"buffers",void 0),c([d],X.prototype,"cameras",void 0),c([d],X.prototype,"materials",void 0),c([d],X.prototype,"meshes",void 0),c([d],X.prototype,"nodes",void 0),c([d],X.prototype,"scenes",void 0),c([d],X.prototype,"skins",void 0),c([d],X.prototype,"textures",void 0);class K{constructor(){this.Rt=new j,this.Ct=new X(this.Rt),this.Nt=A.DEFAULT_INSTANCE}getRoot(){return this.Ct}getGraph(){return this.Rt}getLogger(){return this.Nt}setLogger(t){return this.Nt=t,this}clone(){return(new K).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,i=new Map;e.add(t.Ct),i.set(t.Ct,this.Ct);for(const r of t.Rt.getLinks())for(const t of[r.getParent(),r.getChild()]){if(e.has(t))continue;let r;if(t.propertyType===u.TEXTURE_INFO)r=t;else{const e=t.constructor;r=t instanceof U?new e(this.Rt,s[t.extensionName]):new e(this.Rt)}i.set(t,r),e.add(t)}const r=t=>i.get(t);for(const t of e)i.get(t).copy(t,r);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 q(this.Rt,t);return this.Ct.bt(s),s}createNode(t=""){const s=new J(this.Rt,t);return this.Ct.At(s),s}createCamera(t=""){const s=new P(this.Rt,t);return this.Ct.xt(s),s}createSkin(t=""){const s=new H(this.Rt,t);return this.Ct.Et(s),s}createMesh(t=""){const s=new V(this.Rt,t);return this.Ct.Tt(s),s}createPrimitive(){return new $(this.Rt)}createPrimitiveTarget(t=""){return new W(this.Rt,t)}createMaterial(t=""){const s=new z(this.Rt,t);return this.Ct.yt(s),s}createTexture(t=""){const s=new Y(this.Rt,t);return this.Ct.Mt(s),s}createAnimation(t=""){const s=new B(this.Rt,t);return this.Ct.wt(s),s}createAnimationChannel(t=""){return new L(this.Rt,t)}createAnimationSampler(t=""){return new O(this.Rt,t)}createAccessor(t="",s=null){s||(s=this.getRoot().listBuffers()[0]);const e=new _(this.Rt,t).setBuffer(s);return this.Ct.gt(e),e}createBuffer(t=""){const s=new k(this.Rt,t);return this.Ct.vt(s),s}}class Z{constructor(t){this.doc=t,this.prereadTypes=[],this.prewriteTypes=[],this.dependencies=[],this.required=!1,this.properties=new Set,t.getRoot().St(this)}dispose(){this.doc.getRoot().It(this);for(const t of this.properties)t.dispose()}isRequired(){return this.required}setRequired(t){return this.required=t,this}addExtensionProperty(t){return this.properties.add(t),this}removeExtensionProperty(t){return this.properties.delete(t),this}install(t,s){return this}preread(t,s){return this}prewrite(t,s){return this}}class Q{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 i=this.jsonDoc.json.samplers[e.sampler];void 0!==i.magFilter&&t.setMagFilter(i.magFilter),void 0!==i.minFilter&&t.setMinFilter(i.minFilter),void 0!==i.wrapS&&t.setWrapS(i.wrapS),void 0!==i.wrapT&&t.setWrapT(i.wrapT)}}const tt={5120:Int8Array,5121:Uint8Array,5122:Int16Array,5123:Uint16Array,5125:Uint32Array,5126:Float32Array},st={logger:A.DEFAULT_INSTANCE,extensions:[],dependencies:{}};class et{static read(t,s=st){const{json:i}=t,r=new K;this.validate(t,s);const o=new Q(t),c=t.json.asset,a=r.getRoot().getAsset();c.copyright&&(a.copyright=c.copyright),c.extras&&(a.extras=c.extras),c.generator&&(a.generator=c.generator),c.minVersion&&(a.minVersion=c.minVersion);const l=i.extensionsUsed||[],f=i.extensionsRequired||[];for(const t of s.extensions)if(l.includes(t.EXTENSION_NAME)){const e=r.createExtension(t).setRequired(f.includes(t.EXTENSION_NAME));for(const t of e.dependencies)e.install(t,s.dependencies[t])}o.buffers=(i.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}),o.bufferViewBuffers=(i.bufferViews||[]).map(t=>o.buffers[t.buffer]),o.accessors=(i.accessors||[]).map(s=>{const e=r.createAccessor(s.name,o.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 i;return i=void 0!==s.sparse?function(t,s){const e=tt[t.componentType],i=_.getElementSize(t.type);let r;r=void 0!==t.bufferView?it(t,s).slice():new e(t.count*i);const n=t.sparse.count,h={...t,...t.sparse.indices,count:n,type:"SCALAR"},o={...t,...t.sparse.values,count:n},u=it(h,s),c=it(o,s);for(let t=0;t<h.count;t++)for(let s=0;s<i;s++)r[u[t]*i+s]=c[t*i+s];return r}(s,t):it(s,t).slice(),e.setArray(i),e});const d=i.images||[],p=i.textures||[];r.getRoot().listExtensionsUsed().filter(t=>t.prereadTypes.includes(u.TEXTURE)).forEach(t=>t.preread(o,u.TEXTURE)),o.textures=d.map(s=>{const e=r.createTexture(s.name);if(s.extras&&e.setExtras(s.extras),void 0!==s.bufferView){const r=i.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);e.setImage(o)}else void 0!==s.uri&&(e.setImage(t.resources[s.uri]),0!==s.uri.indexOf("__")&&e.setURI(s.uri));if(void 0!==s.mimeType)e.setMimeType(s.mimeType);else if(s.uri){const t=w.extension(s.uri);e.setMimeType(m.extensionToMimeType(t))}return e}),o.materials=(i.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(o.textures[p[t.index].source]),o.setTextureInfo(s.getBaseColorTextureInfo(),t)}if(void 0!==t.emissiveTexture){const e=t.emissiveTexture;s.setEmissiveTexture(o.textures[p[e.index].source]),o.setTextureInfo(s.getEmissiveTextureInfo(),e)}if(void 0!==t.normalTexture){const e=t.normalTexture;s.setNormalTexture(o.textures[p[e.index].source]),o.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(o.textures[p[e.index].source]),o.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(o.textures[p[t.index].source]),o.setTextureInfo(s.getMetallicRoughnessTextureInfo(),t)}return s});const g=i.meshes||[];r.getRoot().listExtensionsUsed().filter(t=>t.prereadTypes.includes(u.PRIMITIVE)).forEach(t=>t.preread(o,u.PRIMITIVE)),o.meshes=g.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 i=r.createPrimitive();e.extras&&i.setExtras(e.extras),void 0!==e.material&&i.setMaterial(o.materials[e.material]),void 0!==e.mode&&i.setMode(e.mode);for(const[t,s]of Object.entries(e.attributes||{}))i.setAttribute(t,o.accessors[s]);void 0!==e.indices&&i.setIndices(o.accessors[e.indices]);const n=t.extras&&t.extras.targetNames||[];(e.targets||[]).forEach((t,s)=>{const e=n[s]||s.toString(),h=r.createPrimitiveTarget(e);for(const[s,e]of Object.entries(t))h.setAttribute(s,o.accessors[e]);i.addTarget(h)}),s.addPrimitive(i)}),s}),o.cameras=(i.cameras||[]).map(t=>{const s=r.createCamera(t.name).setType(t.type);return t.extras&&s.setExtras(t.extras),"perspective"===t.type?s.setZNear(t.perspective.znear).setZFar(t.perspective.zfar).setYFov(t.perspective.yfov).setAspectRatio(t.perspective.aspectRatio):s.setZNear(t.orthographic.znear).setZFar(t.orthographic.zfar).setXMag(t.orthographic.xmag).setYMag(t.orthographic.ymag),s});const v=i.nodes||[];return o.nodes=v.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 i=[0,0,0],r=[0,0,0,1],o=[1,1,1];!function(t,s,i,r){let o=h([t[0],t[1],t[2]]);const u=h([t[4],t[5],t[6]]),c=h([t[8],t[9],t[10]]);n(t)<0&&(o=-o),i[0]=t[12],i[1]=t[13],i[2]=t[14];const a=t.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,e(s,a),r[0]=o,r[1]=u,r[2]=c}(t.matrix,r,i,o),s.setTranslation(i),s.setRotation(r),s.setScale(o)}return void 0!==t.weights&&s.setWeights(t.weights),s}),o.skins=(i.skins||[]).map(t=>{const s=r.createSkin(t.name);t.extras&&s.setExtras(t.extras),void 0!==t.inverseBindMatrices&&s.setInverseBindMatrices(o.accessors[t.inverseBindMatrices]),void 0!==t.skeleton&&s.setSkeleton(o.nodes[t.skeleton]);for(const e of t.joints)s.addJoint(o.nodes[e]);return s}),v.map((t,s)=>{const e=o.nodes[s];(t.children||[]).forEach(t=>e.addChild(o.nodes[t])),void 0!==t.mesh&&e.setMesh(o.meshes[t.mesh]),void 0!==t.camera&&e.setCamera(o.cameras[t.camera]),void 0!==t.skin&&e.setSkin(o.skins[t.skin])}),o.animations=(i.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(o.accessors[t.input]).setOutput(o.accessors[t.output]).setInterpolation(t.interpolation||"LINEAR");return t.extras&&e.setExtras(t.extras),s.addSampler(e),e});return(t.channels||[]).forEach(t=>{const i=r.createAnimationChannel().setSampler(e[t.sampler]).setTargetNode(o.nodes[t.target.node]).setTargetPath(t.target.path);t.extras&&i.setExtras(t.extras),s.addChannel(i)}),s}),o.scenes=(i.scenes||[]).map(t=>{const s=r.createScene(t.name);return t.extras&&s.setExtras(t.extras),(t.nodes||[]).map(t=>o.nodes[t]).forEach(t=>s.addChild(t)),s}),r.getRoot().listExtensionsUsed().forEach(t=>t.read(o)),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 it(t,s){const e=s.json.bufferViews[t.bufferView],i=s.json.buffers[e.buffer],r=i.uri?s.resources[i.uri]:s.resources["@glb.bin"],n=tt[t.componentType],h=_.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],i=s.json.buffers[e.buffer],r=i.uri?s.resources[i.uri]:s.resources["@glb.bin"],n=tt[t.componentType],h=_.getElementSize(t.type),o=n.BYTES_PER_ELEMENT,u=t.byteOffset||0,c=new n(t.count*h),a=new DataView(r,e.byteOffset,e.byteLength),l=e.byteStride;for(let s=0;s<t.count;s++)for(let e=0;e<h;e++){const i=u+s*l+e*o;let r;switch(t.componentType){case 5126:r=a.getFloat32(i,!0);break;case 5125:r=a.getUint32(i,!0);break;case 5123:r=a.getUint16(i,!0);break;case 5121:r=a.getUint8(i);break;case 5122:r=a.getInt16(i,!0);break;case 5120:r=a.getInt8(i);break;default:throw new Error(`Unexpected componentType "${t.componentType}".`)}c[s*h+e]=r}return c}(t,s);const o=(e.byteOffset||0)+(t.byteOffset||0);switch(t.componentType){case 5126:return new Float32Array(r,o,t.count*h);case 5125:return new Uint32Array(r,o,t.count*h);case 5123:return new Uint16Array(r,o,t.count*h);case 5121:return new Uint8Array(r,o,t.count*h);case 5122:return new Int16Array(r,o,t.count*h);case 5120:return new Int8Array(r,o,t.count*h);default:throw new Error(`Unexpected componentType "${t.componentType}".`)}}class rt{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={}}createTextureInfoDef(t,s){const e={magFilter:s.getMagFilter()||void 0,minFilter:s.getMinFilter()||void 0,wrapS:s.getWrapS(),wrapT:s.getWrapT()},i=JSON.stringify(e);this.samplerDefIndexMap.has(i)||(this.samplerDefIndexMap.set(i,this.jsonDoc.json.samplers.length),this.jsonDoc.json.samplers.push(e));const r={source:this.imageIndexMap.get(t),sampler:this.samplerDefIndexMap.get(i)},n=JSON.stringify(r);this.textureDefIndexMap.has(n)||(this.textureDefIndexMap.set(n,this.jsonDoc.json.textures.length),this.jsonDoc.json.textures.push(r));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 i=m.mimeTypeToExtension(e.getMimeType());t.uri=this.imageURIGenerator.createURI(e,i),this.jsonDoc.resources[t.uri]=s}}}class nt{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 ht={logger:A.DEFAULT_INSTANCE,basename:"",isGLB:!0,dependencies:{}};class ot{static write(t,s=ht){const e=t.getRoot(),i={json:{asset:e.getAsset()},resources:{}},r=s.logger||A.DEFAULT_INSTANCE,n=i.json;n.asset.generator="glTF-Transform v0.8.4";const h=new rt(i,s),o=e.listBuffers().length,c=e.listTextures().length;h.bufferURIGenerator=new nt(o>1,s.basename),h.imageURIGenerator=new nt(c>1,s.basename),h.logger=t.getLogger();for(const e of t.getRoot().listExtensionsUsed())for(const t of e.dependencies)e.install(t,s.dependencies[t]);function a(t,s,e,i){const r=[];let o=0;for(const s of t){const t=h.createAccessorDef(s);t.bufferView=n.bufferViews.length;const e=p.pad(s.getArray().buffer);t.byteOffset=o,o+=e.byteLength,r.push(e),h.accessorIndexMap.set(s,n.accessors.length),n.accessors.push(t)}const u={buffer:s,byteOffset:e,byteLength:p.concat(r).byteLength};return i&&(u.target=i),n.bufferViews.push(u),{buffers:r,byteLength:o}}function l(t,s,e){const i=t[0].getCount();let r=0;for(const s of t){const t=h.createAccessorDef(s);t.bufferView=n.bufferViews.length,t.byteOffset=r;const e=s.getElementSize(),i=s.getComponentSize();r+=p.padNumber(e*i),h.accessorIndexMap.set(s,n.accessors.length),n.accessors.push(t)}const o=i*r,u=new ArrayBuffer(o),c=new DataView(u);for(let s=0;s<i;s++){let e=0;for(const i of t){const t=i.getElementSize(),n=i.getComponentSize(),h=i.getComponentType(),o=i.getArray();for(let i=0;i<t;i++){const u=s*r+e+i*n,a=o[s*t+i];switch(h){case 5126:c.setFloat32(u,a,!0);break;case 5120:c.setInt8(u,a);break;case 5122:c.setInt16(u,a,!0);break;case 5121:c.setUint8(u,a);break;case 5123:c.setUint16(u,a,!0);break;case 5125:c.setUint32(u,a,!0);break;default:throw new Error("Unexpected component type: "+h)}}e+=p.padNumber(t*n)}}return n.bufferViews.push({buffer:s,byteOffset:e,byteLength:o,byteStride:r,target:34962}),{byteLength:o,buffers:[u]}}const f=new Map;for(const s of t.getGraph().getLinks()){if(s.getParent()===e)continue;const t=s.getChild();if(t instanceof _){const e=f.get(t)||[];e.push(s),f.set(t,e)}}return n.accessors=[],n.bufferViews=[],n.samplers=[],n.textures=[],n.images=e.listTextures().map((t,s)=>{const e=h.createPropertyDef(t);return t.getMimeType()&&(e.mimeType=t.getMimeType()),t.getImage()&&h.createImageData(e,t.getImage(),t),h.imageIndexMap.set(t,s),e}),t.getRoot().listExtensionsUsed().filter(t=>t.prewriteTypes.includes(u.ACCESSOR)).forEach(t=>t.prewrite(h,u.ACCESSOR)),n.buffers=[],e.listBuffers().forEach(t=>{const e=h.createPropertyDef(t),r=new Map,o=new Set,u=new Set,c=new Set,d=t.listParents().filter(t=>!(t instanceof X));for(const t of d){if(!(t instanceof _))throw new Error("Unimplemented buffer reference: "+t);if(h.accessorIndexMap.has(t))continue;let s=!1,e=!1,i=!1,n=!1;const a=f.get(t)||[];for(const t of a)t instanceof F?s=!0:t instanceof D?e=!0:"inverseBindMatrices"===t.getName()?i=!0:n=!0;if(s||e||i||n||(n=!0),!s||e||i||n)if(!e||s||i||n)if(!i||s||e||n){if(!n||s||e||i)throw new Error("Attribute, index, or IBM accessors must be used only for that purpose.");c.add(t)}else u.add(t);else o.add(t);else{const s=a[0].getParent(),e=r.get(s)||new Set;e.add(t),r.set(s,e)}}const g=[],w=n.buffers.length;let m,v=0;if(o.size){const t=a(Array.from(o),w,v,34963);v+=t.byteLength,g.push(...t.buffers)}for(const t of Array.from(r.values()))if(t.size){const s=l(Array.from(t),w,v);v+=s.byteLength,g.push(...s.buffers)}if(u.size){const t=a(Array.from(u),w,v);v+=t.byteLength,g.push(...t.buffers)}if(c.size){const t=a(Array.from(c),w,v);v+=t.byteLength,g.push(...t.buffers)}if(h.imageBufferViews.length)for(let t=0;t<h.imageBufferViews.length;t++)n.bufferViews[n.images[t].bufferView].byteOffset=v,v+=h.imageBufferViews[t].byteLength,g.push(h.imageBufferViews[t]);if(h.otherBufferViews.has(t))for(const s of h.otherBufferViews.get(t))n.bufferViews.push({buffer:w,byteOffset:v,byteLength:s.byteLength}),h.otherBufferViewsIndexMap.set(s,n.bufferViews.length-1),v+=s.byteLength,g.push(s);v?(s.isGLB?m="@glb.bin":(m=h.bufferURIGenerator.createURI(t,"bin"),e.uri=m),e.byteLength=v,i.resources[m]=p.concat(g),n.buffers.push(e)):h.logger.warn(`@gltf-transform/core: Skipping empty buffer, "${t.getName()}".`)}),e.listAccessors().find(t=>!t.getBuffer())&&r.warn("Skipped writing one or more Accessors: no Buffer assigned."),n.materials=e.listMaterials().map((t,s)=>{const e=h.createPropertyDef(t);if(e.alphaMode=t.getAlphaMode(),"MASK"===t.getAlphaMode()&&(e.alphaCutoff=t.getAlphaCutoff()),e.doubleSided=t.getDoubleSided(),e.pbrMetallicRoughness={},e.pbrMetallicRoughness.baseColorFactor=t.getBaseColorFactor(),e.emissiveFactor=t.getEmissiveFactor(),e.pbrMetallicRoughness.roughnessFactor=t.getRoughnessFactor(),e.pbrMetallicRoughness.metallicFactor=t.getMetallicFactor(),t.getBaseColorTexture()){const s=t.getBaseColorTexture(),i=t.getBaseColorTextureInfo();e.pbrMetallicRoughness.baseColorTexture=h.createTextureInfoDef(s,i)}if(t.getEmissiveTexture()){const s=t.getEmissiveTexture(),i=t.getEmissiveTextureInfo();e.emissiveTexture=h.createTextureInfoDef(s,i)}if(t.getNormalTexture()){const s=t.getNormalTexture(),i=t.getNormalTextureInfo(),r=h.createTextureInfoDef(s,i);1!==t.getNormalScale()&&(r.scale=t.getNormalScale()),e.normalTexture=r}if(t.getOcclusionTexture()){const s=t.getOcclusionTexture(),i=t.getOcclusionTextureInfo(),r=h.createTextureInfoDef(s,i);1!==t.getOcclusionStrength()&&(r.strength=t.getOcclusionStrength()),e.occlusionTexture=r}if(t.getMetallicRoughnessTexture()){const s=t.getMetallicRoughnessTexture(),i=t.getMetallicRoughnessTextureInfo();e.pbrMetallicRoughness.metallicRoughnessTexture=h.createTextureInfoDef(s,i)}return h.materialIndexMap.set(t,s),e}),n.meshes=e.listMeshes().map((t,s)=>{const e=h.createPropertyDef(t);let i;return e.primitives=t.listPrimitives().map(t=>{const s={attributes:{}};s.mode=t.getMode(),t.getMaterial()&&(s.material=h.materialIndexMap.get(t.getMaterial())),Object.keys(t.getExtras()).length&&(s.extras=t.getExtras()),t.getIndices()&&(s.indices=h.accessorIndexMap.get(t.getIndices()));for(const e of t.listSemantics())s.attributes[e]=h.accessorIndexMap.get(t.getAttribute(e));for(const e of t.listTargets()){const t={};for(const s of e.listSemantics())t[s]=h.accessorIndexMap.get(e.getAttribute(s));s.targets=s.targets||[],s.targets.push(t)}return t.listTargets().length&&!i&&(i=t.listTargets().map(t=>t.getName())),s}),t.getWeights().length&&(e.weights=t.getWeights()),i&&(e.extras=e.extras||{},e.extras.targetNames=i),h.meshIndexMap.set(t,s),e}),n.cameras=e.listCameras().map((t,s)=>{const e=h.createPropertyDef(t);return e.type=t.getType(),"perspective"===e.type?e.perspective={znear:t.getZNear(),zfar:t.getZFar(),yfov:t.getYFov(),aspectRatio:t.getAspectRatio()}:e.orthographic={znear:t.getZNear(),zfar:t.getZFar(),xmag:t.getXMag(),ymag:t.getYMag()},h.cameraIndexMap.set(t,s),e}),n.nodes=e.listNodes().map((t,s)=>{const e=h.createPropertyDef(t);return e.translation=t.getTranslation(),e.rotation=t.getRotation(),e.scale=t.getScale(),t.getWeights().length&&(e.weights=t.getWeights()),h.nodeIndexMap.set(t,s),e}),n.skins=e.listSkins().map((t,s)=>{const e=h.createPropertyDef(t);return t.getInverseBindMatrices()&&(e.inverseBindMatrices=h.accessorIndexMap.get(t.getInverseBindMatrices())),t.getSkeleton()&&(e.skeleton=h.nodeIndexMap.get(t.getSkeleton())),e.joints=t.listJoints().map(t=>h.nodeIndexMap.get(t)),h.skinIndexMap.set(t,s),e}),e.listNodes().forEach((t,s)=>{const e=n.nodes[s];t.getMesh()&&(e.mesh=h.meshIndexMap.get(t.getMesh())),t.getCamera()&&(e.camera=h.cameraIndexMap.get(t.getCamera())),t.getSkin()&&(e.skin=h.skinIndexMap.get(t.getSkin())),t.listChildren().length>0&&(e.children=t.listChildren().map(t=>h.nodeIndexMap.get(t)))}),n.animations=e.listAnimations().map(t=>{const s=h.createPropertyDef(t),e=new Map;return s.samplers=t.listSamplers().map((t,s)=>{const i=h.createPropertyDef(t);return i.input=h.accessorIndexMap.get(t.getInput()),i.output=h.accessorIndexMap.get(t.getOutput()),i.interpolation=t.getInterpolation(),e.set(t,s),i}),s.channels=t.listChannels().map(t=>{const s=h.createPropertyDef(t);return s.sampler=e.get(t.getSampler()),s.target={node:h.nodeIndexMap.get(t.getTargetNode()),path:t.getTargetPath()},s}),s}),n.scenes=e.listScenes().map(t=>{const s=h.createPropertyDef(t);return s.nodes=t.listChildren().map(t=>h.nodeIndexMap.get(t)),s}),n.extensionsUsed=e.listExtensionsUsed().map(t=>t.extensionName),n.extensionsRequired=e.listExtensionsRequired().map(t=>t.extensionName),e.listExtensionsUsed().forEach(t=>t.write(h)),function(t){const s=[];for(const e in t){const i=t[e];Array.isArray(i)&&0===i.length?s.push(e):null!==i&&""!==i||s.push(i)}for(const e of s)delete t[e]}(n),i}}class ut{constructor(){this.Nt=A.DEFAULT_INSTANCE,this.dt=[],this._t={}}setLogger(t){return this.Nt=t,this}registerExtensions(t){return this.dt.push(...t),this}registerDependencies(t){return Object.assign(this._t,t),this}readJSON(t){return et.read(t,{extensions:this.dt,dependencies:this._t,logger:this.Nt})}writeJSON(t,s){if(s.isGLB&&1!==t.getRoot().listBuffers().length)throw new Error("GLB must have exactly 1 buffer.");return s.dependencies={...this._t,...s.dependencies},ot.write(t,s)}binaryToJSON(t){const s=new Uint32Array(t,0,3);if(1179937895!==s[0])throw new Error("Invalid glTF asset.");if(2!==s[1])throw new Error(`Unsupported glTF binary version, "${s[1]}".`);const e=new Uint32Array(t,12,2),i=e[0],r=new Uint32Array(t,20+i,2);if(1313821514!==e[1]||5130562!==r[1])throw new Error("Unexpected GLB layout.");const n=p.decodeText(t.slice(20,20+i)),h=20+i+8;return{json:JSON.parse(n),resources:{"@glb.bin":t.slice(h,h+r[0])}}}readBinary(t){return this.readJSON(this.binaryToJSON(t))}writeBinary(t){const{json:s,resources:e}=this.writeJSON(t,{basename:"",isGLB:!0,logger:this.Nt,dependencies:this._t}),i=JSON.stringify(s),r=p.pad(p.encodeText(i),32),n=new Uint32Array([r.byteLength,1313821514]).buffer,h=p.concat([n,r]),o=p.pad(Object.values(e)[0]||new ArrayBuffer(0),0),u=new Uint32Array([o.byteLength,5130562]).buffer,c=p.concat([u,o]),a=new Uint32Array([1179937895,2,12+h.byteLength+c.byteLength]).buffer;return p.concat([a,h,c])}}class ct extends ut{constructor(){super(),this.lastReadBytes=0,this.lastWriteBytes=0,this.Bt=require("fs"),this.Lt=require("path")}read(t){const s=this.readAsJSON(t);return et.read(s,{extensions:this.dt,dependencies:this._t,logger:this.Nt})}readAsJSON(t){return t.match(/\.glb$/)||t.match(/^data:application\/octet-stream;/)?this.Ot(t):this.kt(t)}write(t,s){t.match(/\.glb$/)?this.Pt(t,s):this.Ut(t,s)}Ot(t){const s=this.Bt.readFileSync(t),e=p.trim(s);return this.lastReadBytes=e.byteLength,this.binaryToJSON(e)}kt(t){this.lastReadBytes=0;const s=this.Lt.dirname(t),e=this.Bt.readFileSync(t,"utf8");this.lastReadBytes+=e.length;const i={json:JSON.parse(e),resources:{}};return[...i.json.images||[],...i.json.buffers||[]].forEach(t=>{if(t.uri)if(t.uri.match(/data:/)){const s=`__${S()}.${w.extension(t.uri)}`;i.resources[s]=p.createBufferFromDataURI(t.uri),t.uri=s}else{const e=this.Lt.resolve(s,t.uri);i.resources[t.uri]=p.trim(this.Bt.readFileSync(e)),this.lastReadBytes+=i.resources[t.uri].byteLength}}),i}Ut(t,s){this.lastWriteBytes=0;const{json:e,resources:i}=ot.write(s,{basename:w.basename(t),isGLB:!1,logger:this.Nt,dependencies:this._t}),{Bt:r,Lt:n}=this,h=n.dirname(t),o=JSON.stringify(e,null,2);this.lastWriteBytes+=o.length,r.writeFileSync(t,o),Object.keys(i).forEach(t=>{const s=Buffer.from(i[t]);r.writeFileSync(n.join(h,t),s),this.lastWriteBytes+=s.byteLength})}Pt(t,s){const e=Buffer.from(this.writeBinary(s));this.Bt.writeFileSync(t,e),this.lastWriteBytes=e.byteLength}}const at={};class lt extends ut{constructor(t=at){super(),this.Ft=t}read(t){return this.readAsJSON(t).then(t=>this.readJSON(t))}readAsJSON(t){return t.match(/\.glb$/)||t.match(/^data:application\/octet-stream;/)?this.Ot(t):this.kt(t)}kt(t){const s={json:{},resources:{}};return fetch(t,this.Ft).then(t=>t.json()).then(t=>{s.json=t;const e=[...t.images||[],...t.buffers||[]].map(t=>{if(t.uri)return fetch(t.uri,this.Ft).then(t=>t.arrayBuffer()).then(e=>{s.resources[t.uri]=e})});return Promise.all(e).then(()=>s)})}Ot(t){return fetch(t,this.Ft).then(t=>t.arrayBuffer()).then(t=>this.binaryToJSON(t))}}export{_ as Accessor,B as Animation,L as AnimationChannel,O as AnimationSampler,k as Buffer,p as BufferUtils,I as COPY_IDENTITY,P as Camera,g as ColorUtils,K as Document,Z as Extension,U as ExtensionProperty,w as FileUtils,o as GLB_BUFFER,l as Graph,f as GraphChild,d as GraphChildList,m as ImageUtils,a as Link,A as Logger,z as Material,T as MathUtils,V as Mesh,J as Node,ct as NodeIO,$ as Primitive,W as PrimitiveTarget,R as Property,u as PropertyType,Q as ReaderContext,X as Root,q as Scene,H as Skin,Y as Texture,G as TextureInfo,lt as WebIO,rt as WriterContext,S as uuid};
 //# sourceMappingURL=core.modern.js.map

package.json

 {
   "name": "@gltf-transform/core",
-  "version": "0.8.1",
+  "version": "0.8.4",
   "repository": "github:donmccurdy/glTF-Transform",
@@ -42,3 +42,3 @@ "description": "glTF 2.0 SDK for JavaScript, TypeScript, and Node.js",
   },
-  "gitHead": "0a4bd744cedbfd87c0dd46f4c38337b5951da97c"
+  "gitHead": "c0f5e0e9983dfa3bda71dd3687d762422b71ac17"
 }

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