@needle-tools/engine/dist/three-examples.light.min.js

Needle Engine is a web-based runtime for 3D apps. It runs on your machine for development with great integrations into editors like Unity or Blender - and can be deployed onto any device! It is flexible, extensible and networking and XR are built-in

import{Mesh as H,SphereGeometry as pn,Vector3 as N,MeshBasicMaterial as It,Node as Ho,PerspectiveCamera as Os,NodeFrame as jo,ShaderLib as Et,NodeBuilder as qo,GLSLNodeParser as zo,UniformsUtils as un,UniformsLib as fs,normalView as Ko,defaultShaderStages as Hs,ShaderChunk as Yo,Material as Jt,TrianglesDrawMode as Jo,TriangleFanDrawMode as fn,TriangleStripDrawMode as yi,Matrix4 as oe,Loader as Dt,LoaderUtils as Wt,FileLoader as gt,Color as Be,LinearSRGBColorSpace as Ve,SpotLight as Qi,PointLight as mn,DirectionalLight as vi,SRGBColorSpace as re,MeshPhysicalMaterial as Ct,Vector2 as Fe,InstancedMesh as Wo,InstancedBufferAttribute as Vo,Object3D as Bt,TextureLoader as bn,ImageBitmapLoader as Xo,BufferAttribute as nt,InterleavedBuffer as Zo,LinearFilter as dt,LinearMipmapLinearFilter as js,RepeatWrapping as Vt,PointsMaterial as ms,LineBasicMaterial as kt,MeshStandardMaterial as In,DoubleSide as En,PropertyBinding as pt,BufferGeometry as At,SkinnedMesh as Cn,LineSegments as qs,Line as ut,LineLoop as $o,Points as zs,Group as Xt,MathUtils as Ee,OrthographicCamera as xi,Skeleton as Si,AnimationClip as Bn,Bone as wn,InterpolateLinear as bs,ColorManagement as Xe,Quaternion as we,NearestFilter as Ri,NearestMipmapNearestFilter as Ti,LinearMipmapNearestFilter as Di,NearestMipmapLinearFilter as ki,ClampToEdgeWrapping as Ks,MirroredRepeatWrapping as Mi,InterpolateDiscrete as yn,FrontSide as _i,InterleavedBufferAttribute as Zt,Texture as Qn,VectorKeyframeTrack as Ys,NumberKeyframeTrack as Js,QuaternionKeyframeTrack as Ws,Box3 as Vs,Sphere as vn,Interpolant as er,CompressedCubeTexture as tr,UnsignedByteType as ft,CompressedArrayTexture as sr,CompressedTexture as Is,RGBAFormat as Pt,RGBA_ASTC_4x4_Format as Fi,RGBA_BPTC_Format as nr,RGBA_ETC2_EAC_Format as ir,RGBA_PVRTC_4BPPV1_Format as ar,RGBA_S3TC_DXT5_Format as or,RGB_ETC1_Format as rr,RGB_ETC2_Format as Ar,RGB_PVRTC_4BPPV1_Format as cr,RGBA_S3TC_DXT1_Format as lr,FloatType as wt,HalfFloatType as it,DataTexture as hr,Data3DTexture as gr,DisplayP3ColorSpace as dr,LinearDisplayP3ColorSpace as pr,NoColorSpace as Xs,RGFormat as Es,RedFormat as os,RGBA_ASTC_6x6_Format as Li,ExtrudeGeometry as ur,ShapePath as fr,Raycaster as xn,Euler as Ot,CylinderGeometry as Ze,BoxGeometry as Ye,Float32BufferAttribute as Re,OctahedronGeometry as Zs,TorusGeometry as Cs,Controls as Ni,PlaneGeometry as Sn,DataTextureLoader as Ui,DataUtils as rs,Vector4 as Mt,Curve as mr,MeshPhongMaterial as Bs,MeshLambertMaterial as br,EquirectangularReflectionMapping as Ir,AmbientLight as Er,Uint16BufferAttribute as Cr,Matrix3 as Gi,ShapeUtils as Br,DefaultLoadingManager as wr,Ray as yr,Plane as Qr,MOUSE as As,TOUCH as cs,Spherical as Pi,ShaderMaterial as Oi,Uniform$1 as vr,Scene as Rn,WebGLRenderer as xr,CanvasTexture as Hi,REVISION as Sr,Source as Rr,InstancedBufferGeometry as Tr,InstancedInterleavedBuffer as Tn,WireframeGeometry as Dr,Line3 as kr,ColorKeyframeTrack as Mr}from"./three.light.min.js";class _r extends H{constructor(e,t,n,s=128){if(t<=0||n<=0||s<=0)throw new Error("GroundedSkybox height, radius, and resolution must be positive.");const i=new pn(n,2*s,s);i.scale(1,1,-1);const a=i.getAttribute("position"),r=new N;for(let A=0;A<a.count;++A)if(r.fromBufferAttribute(a,A),r.y<0){const c=-t*3/2,l=r.y<c?-t/r.y:1-r.y*r.y/(3*c*c);r.multiplyScalar(l),r.toArray(a.array,3*A)}a.needsUpdate=!0,super(i,new It({map:e,depthWrite:!1}))}}class Fr extends Ho{constructor(e){super(e.nodeType),this.node=null,this.source=null,this.target=null,this.inclusionType="replace",Object.assign(this,e)}generate(e){return this.node.build(e,this.getNodeType(e))}}const fe=Fr,$e=new jo;$e.camera=new Os;const ji={LineBasicNodeMaterial:Et.basic,MeshBasicNodeMaterial:Et.basic,PointsNodeMaterial:Et.points,MeshStandardNodeMaterial:Et.standard,MeshPhysicalNodeMaterial:Et.physical,MeshPhongNodeMaterial:Et.phong},Lr={atan2:"atan"},Nr={low:"lowp",medium:"mediump",high:"highp"};function Ht(o){return`#include <${o}>`}function ws(o){return`${o}Shader`}class Ur extends qo{constructor(e,t,n,s=null){super(e,t,new zo,null,s),this.shader=n,this.slots={vertex:[],fragment:[]},this._parseShaderLib(),this._parseInclude("fragment","lights_physical_fragment","clearcoat_normal_fragment_begin","transmission_fragment"),this._parseObject(),this._sortSlotsToFlow(),this.useComparisonMethod=!0}getMethod(e){return Lr[e]||e}addSlot(e,t){this.slots[e].push(t)}_parseShaderLib(){const e=this.material;let t=e.type;if(e.isMeshPhysicalNodeMaterial?t="MeshPhysicalNodeMaterial":e.isMeshStandardNodeMaterial?t="MeshStandardNodeMaterial":e.isMeshPhongNodeMaterial?t="MeshPhongNodeMaterial":e.isMeshBasicNodeMaterial?t="MeshBasicNodeMaterial":e.isPointsNodeMaterial?t="PointsNodeMaterial":e.isLineBasicNodeMaterial&&(t="LineBasicNodeMaterial"),ji[t]!==void 0){const n=ji[t],s=this.shader;s.vertexShader=n.vertexShader,s.fragmentShader=n.fragmentShader,s.uniforms=un.merge([n.uniforms,fs.lights])}}_parseObject(){const{material:e,renderer:t}=this;this.addSlot("fragment",new fe({node:Ko,nodeType:"vec3",source:"void main() {",target:"vec3 TransformedNormalView = %RESULT%;",inclusionType:"append"})),t.toneMappingNode&&t.toneMappingNode.isNode===!0&&this.addSlot("fragment",new fe({node:e.colorNode,nodeType:"vec4",source:Ht("tonemapping_fragment"),target:""})),e.colorNode&&e.colorNode.isNode&&this.addSlot("fragment",new fe({node:e.colorNode,nodeType:"vec4",source:"vec4 diffuseColor = vec4( diffuse, opacity );",target:"vec4 diffuseColor = %RESULT%; diffuseColor.a *= opacity;"})),e.opacityNode&&e.opacityNode.isNode&&this.addSlot("fragment",new fe({node:e.opacityNode,nodeType:"float",source:Ht("alphatest_fragment"),target:"diffuseColor.a = %RESULT%;",inclusionType:"append"})),e.normalNode&&e.normalNode.isNode&&this.addSlot("fragment",new fe({node:e.normalNode,nodeType:"vec3",source:Ht("normal_fragment_begin"),target:"normal = %RESULT%;",inclusionType:"append"})),e.emissiveNode&&e.emissiveNode.isNode&&this.addSlot("fragment",new fe({node:e.emissiveNode,nodeType:"vec3",source:Ht("emissivemap_fragment"),target:"totalEmissiveRadiance = %RESULT%;",inclusionType:"append"})),e.isMeshStandardNodeMaterial&&(e.metalnessNode&&e.metalnessNode.isNode&&this.addSlot("fragment",new fe({node:e.metalnessNode,nodeType:"float",source:Ht("metalnessmap_fragment"),target:"metalnessFactor = %RESULT%;",inclusionType:"append"})),e.roughnessNode&&e.roughnessNode.isNode&&this.addSlot("fragment",new fe({node:e.roughnessNode,nodeType:"float",source:Ht("roughnessmap_fragment"),target:"roughnessFactor = %RESULT%;",inclusionType:"append"})),e.isMeshPhysicalNodeMaterial&&(e.clearcoatNode&&e.clearcoatNode.isNode?(this.addSlot("fragment",new fe({node:e.clearcoatNode,nodeType:"float",source:"material.clearcoat = clearcoat;",target:"material.clearcoat = %RESULT%;"})),e.clearcoatRoughnessNode&&e.clearcoatRoughnessNode.isNode&&this.addSlot("fragment",new fe({node:e.clearcoatRoughnessNode,nodeType:"float",source:"material.clearcoatRoughness = clearcoatRoughness;",target:"material.clearcoatRoughness = %RESULT%;"})),e.clearcoatNormalNode&&e.clearcoatNormalNode.isNode&&this.addSlot("fragment",new fe({node:e.clearcoatNormalNode,nodeType:"vec3",source:"vec3 clearcoatNormal = nonPerturbedNormal;",target:"vec3 clearcoatNormal = %RESULT%;"})),e.defines.USE_CLEARCOAT=""):delete e.defines.USE_CLEARCOAT,e.sheenNode&&e.sheenNode.isNode?(this.addSlot("fragment",new fe({node:e.sheenNode,nodeType:"vec3",source:"material.sheenColor = sheenColor;",target:"material.sheenColor = %RESULT%;"})),e.sheenRoughnessNode&&e.sheenRoughnessNode.isNode&&this.addSlot("fragment",new fe({node:e.sheenRoughnessNode,nodeType:"float",source:"material.sheenRoughness = clamp( sheenRoughness, 0.07, 1.0 );",target:"material.sheenRoughness = clamp( %RESULT%, 0.07, 1.0 );"})),e.defines.USE_SHEEN=""):delete e.defines.USE_SHEEN,e.iridescenceNode&&e.iridescenceNode.isNode?(this.addSlot("fragment",new fe({node:e.iridescenceNode,nodeType:"float",source:"material.iridescence = iridescence;",target:"material.iridescence = %RESULT%;"})),e.iridescenceIORNode&&e.iridescenceIORNode.isNode&&this.addSlot("fragment",new fe({node:e.iridescenceIORNode,nodeType:"float",source:"material.iridescenceIOR = iridescenceIOR;",target:"material.iridescenceIOR = %RESULT%;"})),e.iridescenceThicknessNode&&e.iridescenceThicknessNode.isNode&&this.addSlot("fragment",new fe({node:e.iridescenceThicknessNode,nodeType:"float",source:"material.iridescenceThickness = iridescenceThicknessMaximum;",target:"material.iridescenceThickness = %RESULT%;"})),e.defines.USE_IRIDESCENCE=""):delete e.defines.USE_IRIDESCENCE,e.iorNode&&e.iorNode.isNode&&this.addSlot("fragment",new fe({node:e.iorNode,nodeType:"float",source:"material.ior = ior;",target:"material.ior = %RESULT%;"})),e.specularColorNode&&e.specularColorNode.isNode&&this.addSlot("fragment",new fe({node:e.specularColorNode,nodeType:"vec3",source:"vec3 specularColorFactor = specularColor;",target:"vec3 specularColorFactor = %RESULT%;"})),e.specularIntensityNode&&e.specularIntensityNode.isNode&&this.addSlot("fragment",new fe({node:e.specularIntensityNode,nodeType:"float",source:"float specularIntensityFactor = specularIntensity;",target:"float specularIntensityFactor = %RESULT%;"})),e.transmissionNode&&e.transmissionNode.isNode?(this.addSlot("fragment",new fe({node:e.transmissionNode,nodeType:"float",source:"material.transmission = transmission;",target:"material.transmission = %RESULT%;"})),e.thicknessNode&&e.thicknessNode.isNode&&this.addSlot("fragment",new fe({node:e.thicknessNode,nodeType:"float",source:"material.thickness = thickness;",target:"material.thickness = %RESULT%;"})),e.attenuationDistanceNode&&e.attenuationDistanceNode.isNode&&this.addSlot("fragment",new fe({node:e.attenuationDistanceNode,nodeType:"float",source:"material.attenuationDistance = attenuationDistance;",target:"material.attenuationDistance = %RESULT%;"})),e.attenuationColorNode&&e.attenuationColorNode.isNode&&this.addSlot("fragment",new fe({node:e.attenuationColorNode,nodeType:"vec3",source:"material.attenuationColor = attenuationColor;",target:"material.attenuationColor = %RESULT%;"})),e.transmission=1,e.defines.USE_TRANSMISSION=""):(e.transmission=0,delete e.defines.USE_TRANSMISSION))),e.positionNode&&e.positionNode.isNode&&this.addSlot("vertex",new fe({node:e.positionNode,nodeType:"vec3",source:Ht("begin_vertex"),target:"transformed = %RESULT%;",inclusionType:"append"})),e.sizeNode&&e.sizeNode.isNode&&this.addSlot("vertex",new fe({node:e.sizeNode,nodeType:"float",source:"gl_PointSize = size;",target:"gl_PointSize = %RESULT%;"}))}generateTexture(e,t,n){return e.isTextureCube?`textureCube( ${t}, ${n} )`:`texture2D( ${t}, ${n} )`}generateTextureLevel(e,t,n,s){return`textureLod( ${t}, ${n}, ${s} )`}buildFunctionCode(e){const t=e.layout,n=this.flowShaderNode(e),s=[];for(const i of t.inputs)s.push(this.getType(i.type)+" "+i.name);return`${this.getType(t.type)} ${t.name}( ${s.join(", ")} ) {

	${n.vars}

${n.code}
	return ${n.result};

}`}getUniforms(e){const t=this.uniforms[e];let n="";for(const s of t){if(/^(modelViewMatrix|projectionMatrix)$/.test(s.name))continue;let i=null;s.type==="texture"?i=`sampler2D ${s.name}; `:s.type==="cubeTexture"?i=`samplerCube ${s.name}; `:i=`${this.getVectorType(s.type)} ${s.name}; `;const a=s.node.precision;a!==null?i="uniform "+Nr[a]+" "+i:i="uniform "+i,n+=i}return n}getAttributes(e){let t="";if(e==="vertex"){const n=this.attributes;for(const s of n)/^(position|normal|uv[1-3]?)$/.test(s.name)||(t+=`attribute ${s.type} ${s.name}; `)}return t}getVaryings(e){let t="";const n=this.varyings;if(e==="vertex")for(const s of n)t+=`${s.needsInterpolation?"varying":"/*varying*/"} ${s.type} ${s.name}; `;else if(e==="fragment")for(const s of n)s.needsInterpolation&&(t+=`varying ${s.type} ${s.name}; `);return t}addCode(e,t,n,s=this){const i=ws(e);let a=s[i];const r=a.indexOf(t);if(r!==-1){const A=a.substring(0,r+t.length),c=a.substring(r+t.length);a=`${A}
${n}
${c}`}s[i]=a}replaceCode(e,t,n,s=this){const i=ws(e);s[i]=s[i].replaceAll(t,n)}getVertexIndex(){return"gl_VertexID"}getFrontFacing(){return"gl_FrontFacing"}getFragCoord(){return"gl_FragCoord"}isFlipY(){return!0}buildCode(){const e={};for(const t of Hs){const n=this.getUniforms(t),s=this.getAttributes(t),i=this.getVaryings(t),a=this.getVars(t),r=this.getCodes(t);e[t]=`${this.getSignature()}
// <node_builder>

// uniforms
${n}

// attributes
${s}

// varyings
${i}

// vars
${a}

// codes
${r}

// </node_builder>

${this.shader[ws(t)]}
`}this.vertexShader=e.vertex,this.fragmentShader=e.fragment}build(){return super.build(!1),this._addSnippets(),this._addUniforms(),this._updateUniforms(),this.shader.vertexShader=this.vertexShader,this.shader.fragmentShader=this.fragmentShader,this}_parseInclude(e,...t){for(const n of t){const s=Ht(n),i=Yo[n],a=ws(e);this.shader[a]=this.shader[a].replaceAll(s,i)}}_sortSlotsToFlow(){for(const e of Hs){const t=this.shader[ws(e)],n=this.slots[e].sort((s,i)=>t.indexOf(s.source)>t.indexOf(i.source)?1:-1);for(const s of n)this.addFlow(e,s)}}_addSnippets(){for(const e of Hs){for(const t of this.slots[e]){const n=this.getFlowData(t),s=t.inclusionType,i=t.source,a=n.code+`
	`+t.target.replace("%RESULT%",n.result);s==="append"?this.addCode(e,i,a):s==="replace"?this.replaceCode(e,i,a):console.warn(`Inclusion type "${s}" not compatible.`)}this.addCode(e,"main() {",`
	`+this.flowCode[e])}}_addUniforms(){for(const e of Hs)for(const t of this.uniforms[e])this.shader.uniforms[t.name]=t}_updateUniforms(){$e.object=this.object,$e.renderer=this.renderer,$e.material=this.material,$e.scene=this.scene;for(const e of this.updateNodes)$e.updateNode(e)}}const qi=new WeakMap;Jt.prototype.onBuild=function(o,e,t){const n=this;if(n.isNodeMaterial===!0){let s;try{s=new Ur(o,t,e,n).build(),qi.set(n,s)}catch(i){console.error("Material.prototype.onBuild: ",i)}}},Jt.prototype.onBeforeRender=function(o,e,t,n,s){const i=qi.get(this);if(i!==void 0){$e.material=this,$e.camera=t,$e.object=s,$e.renderer=o,$e.scene=e,$e.geometry=n;const a=i.updateNodes;if(a.length>0){o.state.useProgram(null);for(const r of a)$e.updateNode(r)}}};var ys=function(){var o=0,e=document.createElement("div");e.style.cssText="position:fixed;top:0;left:0;cursor:pointer;opacity:0.9;z-index:10000",e.addEventListener("click",function(l){l.preventDefault(),n(++o%e.children.length)},!1);function t(l){return e.appendChild(l.dom),l}function n(l){for(var h=0;h<e.children.length;h++)e.children[h].style.display=h===l?"block":"none";o=l}var s=(performance||Date).now(),i=s,a=0,r=t(new ys.Panel("FPS","#0ff","#002")),A=t(new ys.Panel("MS","#0f0","#020"));if(self.performance&&self.performance.memory)var c=t(new ys.Panel("MB","#f08","#201"));return n(0),{REVISION:16,dom:e,addPanel:t,showPanel:n,begin:function(){s=(performance||Date).now()},end:function(){a++;var l=(performance||Date).now();if(A.update(l-s,200),l>=i+1e3&&(r.update(a*1e3/(l-i),100),i=l,a=0,c)){var h=performance.memory;c.update(h.usedJSHeapSize/1048576,h.jsHeapSizeLimit/1048576)}return l},update:function(){s=this.end()},domElement:e,setMode:n}};ys.Panel=function(o,e,t){var n=1/0,s=0,i=Math.round,a=i(window.devicePixelRatio||1),r=80*a,A=48*a,c=3*a,l=2*a,h=3*a,d=15*a,p=74*a,u=30*a,m=document.createElement("canvas");m.width=r,m.height=A,m.style.cssText="width:80px;height:48px";var b=m.getContext("2d");return b.font="bold "+9*a+"px Helvetica,Arial,sans-serif",b.textBaseline="top",b.fillStyle=t,b.fillRect(0,0,r,A),b.fillStyle=e,b.fillText(o,c,l),b.fillRect(h,d,p,u),b.fillStyle=t,b.globalAlpha=.9,b.fillRect(h,d,p,u),{dom:m,update:function(I,C){n=Math.min(n,I),s=Math.max(s,I),b.fillStyle=t,b.globalAlpha=1,b.fillRect(0,0,r,d),b.fillStyle=e,b.fillText(i(I)+" "+o+" ("+i(n)+"-"+i(s)+")",c,l),b.drawImage(m,h+a,d,p-a,u,h,d,p-a,u),b.fillRect(h+p-a,d,a,u),b.fillStyle=t,b.globalAlpha=.9,b.fillRect(h+p-a,d,a,i((1-I/C)*u))}}};function Gr(o,e=1e-4){e=Math.max(e,Number.EPSILON);const t={},n=o.getIndex(),s=o.getAttribute("position"),i=n?n.count:s.count;let a=0;const r=Object.keys(o.attributes),A={},c={},l=[],h=["getX","getY","getZ","getW"],d=["setX","setY","setZ","setW"];for(let C=0,E=r.length;C<E;C++){const w=r[C],y=o.attributes[w];A[w]=new y.constructor(new y.array.constructor(y.count*y.itemSize),y.itemSize,y.normalized);const S=o.morphAttributes[w];S&&(c[w]||(c[w]=[]),S.forEach((R,x)=>{const D=new R.array.constructor(R.count*R.itemSize);c[w][x]=new R.constructor(D,R.itemSize,R.normalized)}))}const p=e*.5,u=Math.log10(1/e),m=Math.pow(10,u),b=p*m;for(let C=0;C<i;C++){const E=n?n.getX(C):C;let w="";for(let y=0,S=r.length;y<S;y++){const R=r[y],x=o.getAttribute(R),D=x.itemSize;for(let G=0;G<D;G++)w+=`${~~(x[h[G]](E)*m+b)},`}if(w in t)l.push(t[w]);else{for(let y=0,S=r.length;y<S;y++){const R=r[y],x=o.getAttribute(R),D=o.morphAttributes[R],G=x.itemSize,W=A[R],V=c[R];for(let J=0;J<G;J++){const Z=h[J],$=d[J];if(W[$](a,x[Z](E)),D)for(let z=0,K=D.length;z<K;z++)V[z][$](a,D[z][Z](E))}}t[w]=a,l.push(a),a++}}const I=o.clone();for(const C in o.attributes){const E=A[C];if(I.setAttribute(C,new E.constructor(E.array.slice(0,a*E.itemSize),E.itemSize,E.normalized)),C in c)for(let w=0;w<c[C].length;w++){const y=c[C][w];I.morphAttributes[C][w]=new y.constructor(y.array.slice(0,a*y.itemSize),y.itemSize,y.normalized)}}return I.setIndex(l),I}function zi(o,e){if(e===Jo)return console.warn("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Geometry already defined as triangles."),o;if(e===fn||e===yi){let t=o.getIndex();if(t===null){const a=[],r=o.getAttribute("position");if(r!==void 0){for(let A=0;A<r.count;A++)a.push(A);o.setIndex(a),t=o.getIndex()}else return console.error("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Undefined position attribute. 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Yr(t)}),this.register(function(t){return new Jr(t)}),this.register(function(t){return new Wr(t)}),this.register(function(t){return new Vr(t)}),this.register(function(t){return new jr(t)}),this.register(function(t){return new Xr(t)}),this.register(function(t){return new Kr(t)}),this.register(function(t){return new $r(t)}),this.register(function(t){return new Zr(t)}),this.register(function(t){return new Or(t)}),this.register(function(t){return new nA(t)}),this.register(function(t){return new iA(t)})}load(e,t,n,s){const i=this;let a;if(this.resourcePath!=="")a=this.resourcePath;else if(this.path!==""){const c=Wt.extractUrlBase(e);a=Wt.resolveURL(c,this.path)}else a=Wt.extractUrlBase(e);this.manager.itemStart(e);const r=function(c){s?s(c):console.error(c),i.manager.itemError(e),i.manager.itemEnd(e)},A=new gt(this.manager);A.setPath(this.path),A.setResponseType("arraybuffer"),A.setRequestHeader(this.requestHeader),A.setWithCredentials(this.withCredentials),A.load(e,function(c){try{i.parse(c,a,function(l){t(l),i.manager.itemEnd(e)},r)}catch(l){r(l)}},n,r)}setDRACOLoader(e){return this.dracoLoader=e,this}setKTX2Loader(e){return this.ktx2Loader=e,this}setMeshoptDecoder(e){return this.meshoptDecoder=e,this}register(e){return this.pluginCallbacks.indexOf(e)===-1&&this.pluginCallbacks.push(e),this}unregister(e){return this.pluginCallbacks.indexOf(e)!==-1&&this.pluginCallbacks.splice(this.pluginCallbacks.indexOf(e),1),this}parse(e,t,n,s){let i,a;const r={},A={},c=new TextDecoder;if(typeof e=="string")try{i=JSON.parse(e)}catch(h){a=e,s&&s(h);return}else if(e instanceof ArrayBuffer)if(c.decode(new Uint8Array(e,0,4))===Ki){try{r[ne.KHR_BINARY_GLTF]=new aA(e)}catch(h){s&&s(h);return}try{i=JSON.parse(r[ne.KHR_BINARY_GLTF].content)}catch(h){a=r[ne.KHR_BINARY_GLTF].content,s&&s(h);return}}else try{i=JSON.parse(c.decode(e))}catch(h){a=c.decode(e),s&&s(h);return}else i=e;if(i.asset===void 0||i.asset.version[0]<2){s&&s(new Error("THREE.GLTFLoader: Unsupported asset. glTF versions >=2.0 are supported."));return}this.json=i,this.jsonErrorData=a;const l=new bA(i,{path:t||this.resourcePath||"",crossOrigin:this.crossOrigin,requestHeader:this.requestHeader,manager:this.manager,ktx2Loader:this.ktx2Loader,meshoptDecoder:this.meshoptDecoder});l.fileLoader.setRequestHeader(this.requestHeader);for(let h=0;h<this.pluginCallbacks.length;h++){const d=this.pluginCallbacks[h](l);d.name||console.error("THREE.GLTFLoader: Invalid plugin found: missing name"),A[d.name]=d,r[d.name]=!0}if(i.extensionsUsed)for(let h=0;h<i.extensionsUsed.length;++h){const d=i.extensionsUsed[h],p=i.extensionsRequired||[];switch(d){case ne.KHR_MATERIALS_UNLIT:r[d]=new Hr;break;case ne.KHR_DRACO_MESH_COMPRESSION:r[d]=new oA(i,this.dracoLoader);break;case ne.KHR_TEXTURE_TRANSFORM:r[d]=new rA;break;case ne.KHR_MESH_QUANTIZATION:r[d]=new AA;break;default:p.indexOf(d)>=0&&A[d]===void 0&&console.warn('THREE.GLTFLoader: Unknown extension "'+d+'".')}}l.setExtensions(r),l.setPlugins(A),l.parse(n,s)}parseAsync(e,t){const n=this;return new Promise(function(s,i){n.parse(e,t,s,i)})}}function Pr(){let o={};return{get:function(e){return o[e]},add:function(e,t){o[e]=t},remove:function(e){delete o[e]},removeAll:function(){o={}}}}const ne={KHR_BINARY_GLTF:"KHR_binary_glTF",KHR_DRACO_MESH_COMPRESSION:"KHR_draco_mesh_compression",KHR_LIGHTS_PUNCTUAL:"KHR_lights_punctual",KHR_MATERIALS_CLEARCOAT:"KHR_materials_clearcoat",KHR_MATERIALS_DISPERSION:"KHR_materials_dispersion",KHR_MATERIALS_IOR:"KHR_materials_ior",KHR_MATERIALS_SHEEN:"KHR_materials_sheen",KHR_MATERIALS_SPECULAR:"KHR_materials_specular",KHR_MATERIALS_TRANSMISSION:"KHR_materials_transmission",KHR_MATERIALS_IRIDESCENCE:"KHR_materials_iridescence",KHR_MATERIALS_ANISOTROPY:"KHR_materials_anisotropy",KHR_MATERIALS_UNLIT:"KHR_materials_unlit",KHR_MATERIALS_VOLUME:"KHR_materials_volume",KHR_TEXTURE_BASISU:"KHR_texture_basisu",KHR_TEXTURE_TRANSFORM:"KHR_texture_transform",KHR_MESH_QUANTIZATION:"KHR_mesh_quantization",KHR_MATERIALS_EMISSIVE_STRENGTH:"KHR_materials_emissive_strength",EXT_MATERIALS_BUMP:"EXT_materials_bump",EXT_TEXTURE_WEBP:"EXT_texture_webp",EXT_TEXTURE_AVIF:"EXT_texture_avif",EXT_MESHOPT_COMPRESSION:"EXT_meshopt_compression",EXT_MESH_GPU_INSTANCING:"EXT_mesh_gpu_instancing"};class Or{constructor(e){this.parser=e,this.name=ne.KHR_LIGHTS_PUNCTUAL,this.cache={refs:{},uses:{}}}_markDefs(){const e=this.parser,t=this.parser.json.nodes||[];for(let n=0,s=t.length;n<s;n++){const i=t[n];i.extensions&&i.extensions[this.name]&&i.extensions[this.name].light!==void 0&&e._addNodeRef(this.cache,i.extensions[this.name].light)}}_loadLight(e){const t=this.parser,n="light:"+e;let s=t.cache.get(n);if(s)return s;const i=t.json,a=((i.extensions&&i.extensions[this.name]||{}).lights||[])[e];let r;const A=new Be(16777215);a.color!==void 0&&A.setRGB(a.color[0],a.color[1],a.color[2],Ve);const c=a.range!==void 0?a.range:0;switch(a.type){case"directional":r=new vi(A),r.target.position.set(0,0,-1),r.add(r.target);break;case"point":r=new mn(A),r.distance=c;break;case"spot":r=new Qi(A),r.distance=c,a.spot=a.spot||{},a.spot.innerConeAngle=a.spot.innerConeAngle!==void 0?a.spot.innerConeAngle:0,a.spot.outerConeAngle=a.spot.outerConeAngle!==void 0?a.spot.outerConeAngle:Math.PI/4,r.angle=a.spot.outerConeAngle,r.penumbra=1-a.spot.innerConeAngle/a.spot.outerConeAngle,r.target.position.set(0,0,-1),r.add(r.target);break;default:throw new Error("THREE.GLTFLoader: Unexpected light type: "+a.type)}return r.position.set(0,0,0),r.decay=2,_t(r,a),a.intensity!==void 0&&(r.intensity=a.intensity),r.name=t.createUniqueName(a.name||"light_"+e),s=Promise.resolve(r),t.cache.add(n,s),s}getDependency(e,t){if(e==="light")return this._loadLight(t)}createNodeAttachment(e){const t=this,n=this.parser,s=n.json.nodes[e],i=(s.extensions&&s.extensions[this.name]||{}).light;return i===void 0?null:this._loadLight(i).then(function(a){return n._getNodeRef(t.cache,i,a)})}}let Hr=class{constructor(){this.name=ne.KHR_MATERIALS_UNLIT}getMaterialType(){return It}extendParams(o,e,t){const n=[];o.color=new Be(1,1,1),o.opacity=1;const s=e.pbrMetallicRoughness;if(s){if(Array.isArray(s.baseColorFactor)){const i=s.baseColorFactor;o.color.setRGB(i[0],i[1],i[2],Ve),o.opacity=i[3]}s.baseColorTexture!==void 0&&n.push(t.assignTexture(o,"map",s.baseColorTexture,re))}return Promise.all(n)}},jr=class{constructor(o){this.parser=o,this.name=ne.KHR_MATERIALS_EMISSIVE_STRENGTH}extendMaterialParams(o,e){const t=this.parser.json.materials[o];if(!t.extensions||!t.extensions[this.name])return Promise.resolve();const n=t.extensions[this.name].emissiveStrength;return n!==void 0&&(e.emissiveIntensity=n),Promise.resolve()}},qr=class{constructor(o){this.parser=o,this.name=ne.KHR_MATERIALS_CLEARCOAT}getMaterialType(o){const e=this.parser.json.materials[o];return!e.extensions||!e.extensions[this.name]?null:Ct}extendMaterialParams(o,e){const t=this.parser,n=t.json.materials[o];if(!n.extensions||!n.extensions[this.name])return Promise.resolve();const s=[],i=n.extensions[this.name];if(i.clearcoatFactor!==void 0&&(e.clearcoat=i.clearcoatFactor),i.clearcoatTexture!==void 0&&s.push(t.assignTexture(e,"clearcoatMap",i.clearcoatTexture)),i.clearcoatRoughnessFactor!==void 0&&(e.clearcoatRoughness=i.clearcoatRoughnessFactor),i.clearcoatRoughnessTexture!==void 0&&s.push(t.assignTexture(e,"clearcoatRoughnessMap",i.clearcoatRoughnessTexture)),i.clearcoatNormalTexture!==void 0&&(s.push(t.assignTexture(e,"clearcoatNormalMap",i.clearcoatNormalTexture)),i.clearcoatNormalTexture.scale!==void 0)){const a=i.clearcoatNormalTexture.scale;e.clearcoatNormalScale=new Fe(a,a)}return Promise.all(s)}},zr=class{constructor(o){this.parser=o,this.name=ne.KHR_MATERIALS_DISPERSION}getMaterialType(o){const e=this.parser.json.materials[o];return!e.extensions||!e.extensions[this.name]?null:Ct}extendMaterialParams(o,e){const t=this.parser.json.materials[o];if(!t.extensions||!t.extensions[this.name])return Promise.resolve();const n=t.extensions[this.name];return e.dispersion=n.dispersion!==void 0?n.dispersion:0,Promise.resolve()}},Kr=class{constructor(o){this.parser=o,this.name=ne.KHR_MATERIALS_IRIDESCENCE}getMaterialType(o){const e=this.parser.json.materials[o];return!e.extensions||!e.extensions[this.name]?null:Ct}extendMaterialParams(o,e){const t=this.parser,n=t.json.materials[o];if(!n.extensions||!n.extensions[this.name])return Promise.resolve();const s=[],i=n.extensions[this.name];return i.iridescenceFactor!==void 0&&(e.iridescence=i.iridescenceFactor),i.iridescenceTexture!==void 0&&s.push(t.assignTexture(e,"iridescenceMap",i.iridescenceTexture)),i.iridescenceIor!==void 0&&(e.iridescenceIOR=i.iridescenceIor),e.iridescenceThicknessRange===void 0&&(e.iridescenceThicknessRange=[100,400]),i.iridescenceThicknessMinimum!==void 0&&(e.iridescenceThicknessRange[0]=i.iridescenceThicknessMinimum),i.iridescenceThicknessMaximum!==void 0&&(e.iridescenceThicknessRange[1]=i.iridescenceThicknessMaximum),i.iridescenceThicknessTexture!==void 0&&s.push(t.assignTexture(e,"iridescenceThicknessMap",i.iridescenceThicknessTexture)),Promise.all(s)}},Yr=class{constructor(o){this.parser=o,this.name=ne.KHR_MATERIALS_SHEEN}getMaterialType(o){const e=this.parser.json.materials[o];return!e.extensions||!e.extensions[this.name]?null:Ct}extendMaterialParams(o,e){const t=this.parser,n=t.json.materials[o];if(!n.extensions||!n.extensions[this.name])return Promise.resolve();const s=[];e.sheenColor=new Be(0,0,0),e.sheenRoughness=0,e.sheen=1;const i=n.extensions[this.name];if(i.sheenColorFactor!==void 0){const a=i.sheenColorFactor;e.sheenColor.setRGB(a[0],a[1],a[2],Ve)}return i.sheenRoughnessFactor!==void 0&&(e.sheenRoughness=i.sheenRoughnessFactor),i.sheenColorTexture!==void 0&&s.push(t.assignTexture(e,"sheenColorMap",i.sheenColorTexture,re)),i.sheenRoughnessTexture!==void 0&&s.push(t.assignTexture(e,"sheenRoughnessMap",i.sheenRoughnessTexture)),Promise.all(s)}},Jr=class{constructor(o){this.parser=o,this.name=ne.KHR_MATERIALS_TRANSMISSION}getMaterialType(o){const e=this.parser.json.materials[o];return!e.extensions||!e.extensions[this.name]?null:Ct}extendMaterialParams(o,e){const t=this.parser,n=t.json.materials[o];if(!n.extensions||!n.extensions[this.name])return Promise.resolve();const s=[],i=n.extensions[this.name];return i.transmissionFactor!==void 0&&(e.transmission=i.transmissionFactor),i.transmissionTexture!==void 0&&s.push(t.assignTexture(e,"transmissionMap",i.transmissionTexture)),Promise.all(s)}},Wr=class{constructor(o){this.parser=o,this.name=ne.KHR_MATERIALS_VOLUME}getMaterialType(o){const e=this.parser.json.materials[o];return!e.extensions||!e.extensions[this.name]?null:Ct}extendMaterialParams(o,e){const t=this.parser,n=t.json.materials[o];if(!n.extensions||!n.extensions[this.name])return Promise.resolve();const s=[],i=n.extensions[this.name];e.thickness=i.thicknessFactor!==void 0?i.thicknessFactor:0,i.thicknessTexture!==void 0&&s.push(t.assignTexture(e,"thicknessMap",i.thicknessTexture)),e.attenuationDistance=i.attenuationDistance||1/0;const a=i.attenuationColor||[1,1,1];return e.attenuationColor=new Be().setRGB(a[0],a[1],a[2],Ve),Promise.all(s)}},Vr=class{constructor(o){this.parser=o,this.name=ne.KHR_MATERIALS_IOR}getMaterialType(o){const e=this.parser.json.materials[o];return!e.extensions||!e.extensions[this.name]?null:Ct}extendMaterialParams(o,e){const t=this.parser.json.materials[o];if(!t.extensions||!t.extensions[this.name])return Promise.resolve();const n=t.extensions[this.name];return e.ior=n.ior!==void 0?n.ior:1.5,Promise.resolve()}},Xr=class{constructor(o){this.parser=o,this.name=ne.KHR_MATERIALS_SPECULAR}getMaterialType(o){const e=this.parser.json.materials[o];return!e.extensions||!e.extensions[this.name]?null:Ct}extendMaterialParams(o,e){const t=this.parser,n=t.json.materials[o];if(!n.extensions||!n.extensions[this.name])return Promise.resolve();const s=[],i=n.extensions[this.name];e.specularIntensity=i.specularFactor!==void 0?i.specularFactor:1,i.specularTexture!==void 0&&s.push(t.assignTexture(e,"specularIntensityMap",i.specularTexture));const a=i.specularColorFactor||[1,1,1];return e.specularColor=new Be().setRGB(a[0],a[1],a[2],Ve),i.specularColorTexture!==void 0&&s.push(t.assignTexture(e,"specularColorMap",i.specularColorTexture,re)),Promise.all(s)}},Zr=class{constructor(o){this.parser=o,this.name=ne.EXT_MATERIALS_BUMP}getMaterialType(o){const e=this.parser.json.materials[o];return!e.extensions||!e.extensions[this.name]?null:Ct}extendMaterialParams(o,e){const t=this.parser,n=t.json.materials[o];if(!n.extensions||!n.extensions[this.name])return Promise.resolve();const s=[],i=n.extensions[this.name];return e.bumpScale=i.bumpFactor!==void 0?i.bumpFactor:1,i.bumpTexture!==void 0&&s.push(t.assignTexture(e,"bumpMap",i.bumpTexture)),Promise.all(s)}},$r=class{constructor(o){this.parser=o,this.name=ne.KHR_MATERIALS_ANISOTROPY}getMaterialType(o){const e=this.parser.json.materials[o];return!e.extensions||!e.extensions[this.name]?null:Ct}extendMaterialParams(o,e){const t=this.parser,n=t.json.materials[o];if(!n.extensions||!n.extensions[this.name])return Promise.resolve();const s=[],i=n.extensions[this.name];return i.anisotropyStrength!==void 0&&(e.anisotropy=i.anisotropyStrength),i.anisotropyRotation!==void 0&&(e.anisotropyRotation=i.anisotropyRotation),i.anisotropyTexture!==void 0&&s.push(t.assignTexture(e,"anisotropyMap",i.anisotropyTexture)),Promise.all(s)}};class eA{constructor(e){this.parser=e,this.name=ne.KHR_TEXTURE_BASISU}loadTexture(e){const t=this.parser,n=t.json,s=n.textures[e];if(!s.extensions||!s.extensions[this.name])return null;const i=s.extensions[this.name],a=t.options.ktx2Loader;if(!a){if(n.extensionsRequired&&n.extensionsRequired.indexOf(this.name)>=0)throw new Error("THREE.GLTFLoader: setKTX2Loader must be called before loading KTX2 textures");return null}return t.loadTextureImage(e,i.source,a)}}class tA{constructor(e){this.parser=e,this.name=ne.EXT_TEXTURE_WEBP,this.isSupported=null}loadTexture(e){const t=this.name,n=this.parser,s=n.json,i=s.textures[e];if(!i.extensions||!i.extensions[t])return null;const a=i.extensions[t],r=s.images[a.source];let A=n.textureLoader;if(r.uri){const c=n.options.manager.getHandler(r.uri);c!==null&&(A=c)}return this.detectSupport().then(function(c){if(c)return n.loadTextureImage(e,a.source,A);if(s.extensionsRequired&&s.extensionsRequired.indexOf(t)>=0)throw new Error("THREE.GLTFLoader: WebP required by asset but unsupported.");return n.loadTexture(e)})}detectSupport(){return this.isSupported||(this.isSupported=new Promise(function(e){const t=new Image;t.src="data:image/webp;base64,UklGRiIAAABXRUJQVlA4IBYAAAAwAQCdASoBAAEADsD+JaQAA3AAAAAA",t.onload=t.onerror=function(){e(t.height===1)}})),this.isSupported}}class sA{constructor(e){this.parser=e,this.name=ne.EXT_TEXTURE_AVIF,this.isSupported=null}loadTexture(e){const t=this.name,n=this.parser,s=n.json,i=s.textures[e];if(!i.extensions||!i.extensions[t])return null;const a=i.extensions[t],r=s.images[a.source];let A=n.textureLoader;if(r.uri){const c=n.options.manager.getHandler(r.uri);c!==null&&(A=c)}return this.detectSupport().then(function(c){if(c)return n.loadTextureImage(e,a.source,A);if(s.extensionsRequired&&s.extensionsRequired.indexOf(t)>=0)throw new Error("THREE.GLTFLoader: AVIF required by asset but unsupported.");return n.loadTexture(e)})}detectSupport(){return this.isSupported||(this.isSupported=new Promise(function(e){const t=new Image;t.src="data:image/avif;base64,AAAAIGZ0eXBhdmlmAAAAAGF2aWZtaWYxbWlhZk1BMUIAAADybWV0YQAAAAAAAAAoaGRscgAAAAAAAAAAcGljdAAAAAAAAAAAAAAAAGxpYmF2aWYAAAAADnBpdG0AAAAAAAEAAAAeaWxvYwAAAABEAAABAAEAAAABAAABGgAAABcAAAAoaWluZgAAAAAAAQAAABppbmZlAgAAAAABAABhdjAxQ29sb3IAAAAAamlwcnAAAABLaXBjbwAAABRpc3BlAAAAAAAAAAEAAAABAAAAEHBpeGkAAAAAAwgICAAAAAxhdjFDgQAMAAAAABNjb2xybmNseAACAAIABoAAAAAXaXBtYQAAAAAAAAABAAEEAQKDBAAAAB9tZGF0EgAKCBgABogQEDQgMgkQAAAAB8dSLfI=",t.onload=t.onerror=function(){e(t.height===1)}})),this.isSupported}}class nA{constructor(e){this.name=ne.EXT_MESHOPT_COMPRESSION,this.parser=e}loadBufferView(e){const t=this.parser.json,n=t.bufferViews[e];if(n.extensions&&n.extensions[this.name]){const s=n.extensions[this.name],i=this.parser.getDependency("buffer",s.buffer),a=this.parser.options.meshoptDecoder;if(!a||!a.supported){if(t.extensionsRequired&&t.extensionsRequired.indexOf(this.name)>=0)throw new Error("THREE.GLTFLoader: setMeshoptDecoder must be called before loading compressed files");return null}return i.then(function(r){const A=s.byteOffset||0,c=s.byteLength||0,l=s.count,h=s.byteStride,d=new Uint8Array(r,A,c);return a.decodeGltfBufferAsync?a.decodeGltfBufferAsync(l,h,d,s.mode,s.filter).then(function(p){return p.buffer}):a.ready.then(function(){const p=new ArrayBuffer(l*h);return a.decodeGltfBuffer(new Uint8Array(p),l,h,d,s.mode,s.filter),p})})}else return null}}let iA=class{constructor(o){this.name=ne.EXT_MESH_GPU_INSTANCING,this.parser=o}createNodeMesh(o){const e=this.parser.json,t=e.nodes[o];if(!t.extensions||!t.extensions[this.name]||t.mesh===void 0)return null;const n=e.meshes[t.mesh];for(const r of n.primitives)if(r.mode!==ct.TRIANGLES&&r.mode!==ct.TRIANGLE_STRIP&&r.mode!==ct.TRIANGLE_FAN&&r.mode!==void 0)return null;const s=t.extensions[this.name].attributes,i=[],a={};for(const r in s)i.push(this.parser.getDependency("accessor",s[r]).then(A=>(a[r]=A,a[r])));return i.length<1?null:(i.push(this.parser.createNodeMesh(o)),Promise.all(i).then(r=>{const A=r.pop(),c=A.isGroup?A.children:[A],l=r[0].count,h=[];for(const d of c){const p=new oe,u=new N,m=new we,b=new N(1,1,1),I=new Wo(d.geometry,d.material,l);for(let C=0;C<l;C++)a.TRANSLATION&&u.fromBufferAttribute(a.TRANSLATION,C),a.ROTATION&&m.fromBufferAttribute(a.ROTATION,C),a.SCALE&&b.fromBufferAttribute(a.SCALE,C),I.setMatrixAt(C,p.compose(u,m,b));for(const C in a)if(C==="_COLOR_0"){const E=a[C];I.instanceColor=new Vo(E.array,E.itemSize,E.normalized)}else C!=="TRANSLATION"&&C!=="ROTATION"&&C!=="SCALE"&&d.geometry.setAttribute(C,a[C]);Bt.prototype.copy.call(I,d),this.parser.assignFinalMaterial(I),h.push(I)}return A.isGroup?(A.clear(),A.add(...h),A):h[0]}))}};const Ki="glTF",Qs=12,Yi={JSON:1313821514,BIN:5130562};class aA{constructor(e){this.name=ne.KHR_BINARY_GLTF,this.content=null,this.body=null;const t=new DataView(e,0,Qs),n=new TextDecoder;if(this.header={magic:n.decode(new Uint8Array(e.slice(0,4))),version:t.getUint32(4,!0),length:t.getUint32(8,!0)},this.header.magic!==Ki)throw new Error("THREE.GLTFLoader: Unsupported glTF-Binary header.");if(this.header.version<2)throw new Error("THREE.GLTFLoader: Legacy binary file detected.");const s=this.header.length-Qs,i=new DataView(e,Qs);let a=0;for(;a<s;){const r=i.getUint32(a,!0);a+=4;const A=i.getUint32(a,!0);if(a+=4,A===Yi.JSON){const c=new Uint8Array(e,Qs+a,r);this.content=n.decode(c)}else if(A===Yi.BIN){const c=Qs+a;this.body=e.slice(c,c+r)}a+=r}if(this.content===null)throw new Error("THREE.GLTFLoader: JSON content not found.")}}class oA{constructor(e,t){if(!t)throw new Error("THREE.GLTFLoader: No DRACOLoader instance provided.");this.name=ne.KHR_DRACO_MESH_COMPRESSION,this.json=e,this.dracoLoader=t,this.dracoLoader.preload()}decodePrimitive(e,t){const n=this.json,s=this.dracoLoader,i=e.extensions[this.name].bufferView,a=e.extensions[this.name].attributes,r={},A={},c={};for(const l in a){const h=Mn[l]||l.toLowerCase();r[h]=a[l]}for(const l in e.attributes){const h=Mn[l]||l.toLowerCase();if(a[l]!==void 0){const d=n.accessors[e.attributes[l]],p=ls[d.componentType];c[h]=p.name,A[h]=d.normalized===!0}}return t.getDependency("bufferView",i).then(function(l){return new Promise(function(h,d){s.decodeDracoFile(l,function(p){for(const u in p.attributes){const m=p.attributes[u],b=A[u];b!==void 0&&(m.normalized=b)}h(p)},r,c,Ve,d)})})}}class rA{constructor(){this.name=ne.KHR_TEXTURE_TRANSFORM}extendTexture(e,t){return(t.texCoord===void 0||t.texCoord===e.channel)&&t.offset===void 0&&t.rotation===void 0&&t.scale===void 0||(e=e.clone(),t.texCoord!==void 0&&(e.channel=t.texCoord),t.offset!==void 0&&e.offset.fromArray(t.offset),t.rotation!==void 0&&(e.rotation=t.rotation),t.scale!==void 0&&e.repeat.fromArray(t.scale),e.needsUpdate=!0),e}}class AA{constructor(){this.name=ne.KHR_MESH_QUANTIZATION}}class Ji extends er{constructor(e,t,n,s){super(e,t,n,s)}copySampleValue_(e){const t=this.resultBuffer,n=this.sampleValues,s=this.valueSize,i=e*s*3+s;for(let a=0;a!==s;a++)t[a]=n[i+a];return t}interpolate_(e,t,n,s){const i=this.resultBuffer,a=this.sampleValues,r=this.valueSize,A=r*2,c=r*3,l=s-t,h=(n-t)/l,d=h*h,p=d*h,u=e*c,m=u-c,b=-2*p+3*d,I=p-d,C=1-b,E=I-d+h;for(let w=0;w!==r;w++){const y=a[m+w+r],S=a[m+w+A]*l,R=a[u+w+r],x=a[u+w]*l;i[w]=C*y+E*S+b*R+I*x}return i}}const cA=new we;class lA extends Ji{interpolate_(e,t,n,s){const i=super.interpolate_(e,t,n,s);return cA.fromArray(i).normalize().toArray(i),i}}const ct={FLOAT:5126,FLOAT_MAT3:35675,FLOAT_MAT4:35676,FLOAT_VEC2:35664,FLOAT_VEC3:35665,FLOAT_VEC4:35666,LINEAR:9729,REPEAT:10497,SAMPLER_2D:35678,POINTS:0,LINES:1,LINE_LOOP:2,LINE_STRIP:3,TRIANGLES:4,TRIANGLE_STRIP:5,TRIANGLE_FAN:6,UNSIGNED_BYTE:5121,UNSIGNED_SHORT:5123},ls={5120:Int8Array,5121:Uint8Array,5122:Int16Array,5123:Uint16Array,5125:Uint32Array,5126:Float32Array},Wi={9728:Ri,9729:dt,9984:Ti,9985:Di,9986:ki,9987:js},Vi={33071:Ks,33648:Mi,10497:Vt},kn={SCALAR:1,VEC2:2,VEC3:3,VEC4:4,MAT2:4,MAT3:9,MAT4:16},Mn={POSITION:"position",NORMAL:"normal",TANGENT:"tangent",TEXCOORD_0:"uv",TEXCOORD_1:"uv1",TEXCOORD_2:"uv2",TEXCOORD_3:"uv3",COLOR_0:"color",WEIGHTS_0:"skinWeight",JOINTS_0:"skinIndex"},jt={scale:"scale",translation:"position",rotation:"quaternion",weights:"morphTargetInfluences"},hA={CUBICSPLINE:void 0,LINEAR:bs,STEP:yn},_n={OPAQUE:"OPAQUE",MASK:"MASK",BLEND:"BLEND"};function gA(o){return o.DefaultMaterial===void 0&&(o.DefaultMaterial=new In({color:16777215,emissive:0,metalness:1,roughness:1,transparent:!1,depthTest:!0,side:_i})),o.DefaultMaterial}function $t(o,e,t){for(const n in t.extensions)o[n]===void 0&&(e.userData.gltfExtensions=e.userData.gltfExtensions||{},e.userData.gltfExtensions[n]=t.extensions[n])}function _t(o,e){e.extras!==void 0&&(typeof e.extras=="object"?Object.assign(o.userData,e.extras):console.warn("THREE.GLTFLoader: Ignoring primitive type .extras, "+e.extras))}function dA(o,e,t){let n=!1,s=!1,i=!1;for(let c=0,l=e.length;c<l;c++){const h=e[c];if(h.POSITION!==void 0&&(n=!0),h.NORMAL!==void 0&&(s=!0),h.COLOR_0!==void 0&&(i=!0),n&&s&&i)break}if(!n&&!s&&!i)return Promise.resolve(o);const a=[],r=[],A=[];for(let c=0,l=e.length;c<l;c++){const h=e[c];if(n){const d=h.POSITION!==void 0?t.getDependency("accessor",h.POSITION):o.attributes.position;a.push(d)}if(s){const d=h.NORMAL!==void 0?t.getDependency("accessor",h.NORMAL):o.attributes.normal;r.push(d)}if(i){const d=h.COLOR_0!==void 0?t.getDependency("accessor",h.COLOR_0):o.attributes.color;A.push(d)}}return Promise.all([Promise.all(a),Promise.all(r),Promise.all(A)]).then(function(c){const l=c[0],h=c[1],d=c[2];return n&&(o.morphAttributes.position=l),s&&(o.morphAttributes.normal=h),i&&(o.morphAttributes.color=d),o.morphTargetsRelative=!0,o})}function pA(o,e){if(o.updateMorphTargets(),e.weights!==void 0)for(let t=0,n=e.weights.length;t<n;t++)o.morphTargetInfluences[t]=e.weights[t];if(e.extras&&Array.isArray(e.extras.targetNames)){const t=e.extras.targetNames;if(o.morphTargetInfluences.length===t.length){o.morphTargetDictionary={};for(let n=0,s=t.length;n<s;n++)o.morphTargetDictionary[t[n]]=n}else console.warn("THREE.GLTFLoader: Invalid extras.targetNames length. Ignoring names.")}}function uA(o){let e;const t=o.extensions&&o.extensions[ne.KHR_DRACO_MESH_COMPRESSION];if(t?e="draco:"+t.bufferView+":"+t.indices+":"+Fn(t.attributes):e=o.indices+":"+Fn(o.attributes)+":"+o.mode,o.targets!==void 0)for(let n=0,s=o.targets.length;n<s;n++)e+=":"+Fn(o.targets[n]);return e}function Fn(o){let e="";const t=Object.keys(o).sort();for(let n=0,s=t.length;n<s;n++)e+=t[n]+":"+o[t[n]]+";";return e}function Ln(o){switch(o){case Int8Array:return 1/127;case Uint8Array:return 1/255;case Int16Array:return 1/32767;case Uint16Array:return 1/65535;default:throw new Error("THREE.GLTFLoader: Unsupported normalized accessor component type.")}}function fA(o){return o.search(/\.jpe?g($|\?)/i)>0||o.search(/^data\:image\/jpeg/)===0?"image/jpeg":o.search(/\.webp($|\?)/i)>0||o.search(/^data\:image\/webp/)===0?"image/webp":"image/png"}const mA=new oe;class bA{constructor(e={},t={}){this.json=e,this.extensions={},this.plugins={},this.options=t,this.cache=new Pr,this.associations=new Map,this.primitiveCache={},this.nodeCache={},this.meshCache={refs:{},uses:{}},this.cameraCache={refs:{},uses:{}},this.lightCache={refs:{},uses:{}},this.sourceCache={},this.textureCache={},this.nodeNamesUsed={};let n=!1,s=-1,i=!1,a=-1;if(typeof navigator<"u"){const r=navigator.userAgent;n=/^((?!chrome|android).)*safari/i.test(r)===!0;const A=r.match(/Version\/(\d+)/);s=n&&A?parseInt(A[1],10):-1,i=r.indexOf("Firefox")>-1,a=i?r.match(/Firefox\/([0-9]+)\./)[1]:-1}typeof createImageBitmap>"u"||n&&s<17||i&&a<98?this.textureLoader=new bn(this.options.manager):this.textureLoader=new Xo(this.options.manager),this.textureLoader.setCrossOrigin(this.options.crossOrigin),this.textureLoader.setRequestHeader(this.options.requestHeader),this.fileLoader=new gt(this.options.manager),this.fileLoader.setResponseType("arraybuffer"),this.options.crossOrigin==="use-credentials"&&this.fileLoader.setWithCredentials(!0)}setExtensions(e){this.extensions=e}setPlugins(e){this.plugins=e}parse(e,t){const n=this,s=this.json,i=this.extensions;this.cache.removeAll(),this.nodeCache={},this._invokeAll(function(a){return a._markDefs&&a._markDefs()}),Promise.all(this._invokeAll(function(a){return a.beforeRoot&&a.beforeRoot()})).then(function(){return Promise.all([n.getDependencies("scene"),n.getDependencies("animation"),n.getDependencies("camera")])}).then(function(a){const r={scene:a[0][s.scene||0],scenes:a[0],animations:a[1],cameras:a[2],asset:s.asset,parser:n,userData:{}};return $t(i,r,s),_t(r,s),Promise.all(n._invokeAll(function(A){return A.afterRoot&&A.afterRoot(r)})).then(function(){for(const A of r.scenes)A.updateMatrixWorld();e(r)})}).catch(t)}_markDefs(){const e=this.json.nodes||[],t=this.json.skins||[],n=this.json.meshes||[];for(let s=0,i=t.length;s<i;s++){const a=t[s].joints;for(let r=0,A=a.length;r<A;r++)e[a[r]].isBone=!0}for(let s=0,i=e.length;s<i;s++){const a=e[s];a.mesh!==void 0&&(this._addNodeRef(this.meshCache,a.mesh),a.skin!==void 0&&(n[a.mesh].isSkinnedMesh=!0)),a.camera!==void 0&&this._addNodeRef(this.cameraCache,a.camera)}}_addNodeRef(e,t){t!==void 0&&(e.refs[t]===void 0&&(e.refs[t]=e.uses[t]=0),e.refs[t]++)}_getNodeRef(e,t,n){if(e.refs[t]<=1)return n;const s=n.clone(),i=(a,r)=>{const A=this.associations.get(a);A!=null&&this.associations.set(r,A);for(const[c,l]of a.children.entries())i(l,r.children[c])};return i(n,s),s.name+="_instance_"+e.uses[t]++,s}_invokeOne(e){const t=Object.values(this.plugins);t.push(this);for(let n=0;n<t.length;n++){const s=e(t[n]);if(s)return s}return null}_invokeAll(e){const t=Object.values(this.plugins);t.unshift(this);const n=[];for(let s=0;s<t.length;s++){const i=e(t[s]);i&&n.push(i)}return n}getDependency(e,t){const n=e+":"+t;let s=this.cache.get(n);if(!s){switch(e){case"scene":s=this.loadScene(t);break;case"node":s=this._invokeOne(function(i){return i.loadNode&&i.loadNode(t)});break;case"mesh":s=this._invokeOne(function(i){return i.loadMesh&&i.loadMesh(t)});break;case"accessor":s=this.loadAccessor(t);break;case"bufferView":s=this._invokeOne(function(i){return i.loadBufferView&&i.loadBufferView(t)});break;case"buffer":s=this.loadBuffer(t);break;case"material":s=this._invokeOne(function(i){return i.loadMaterial&&i.loadMaterial(t)});break;case"texture":s=this._invokeOne(function(i){return i.loadTexture&&i.loadTexture(t)});break;case"skin":s=this.loadSkin(t);break;case"animation":s=this._invokeOne(function(i){return i.loadAnimation&&i.loadAnimation(t)});break;case"camera":s=this.loadCamera(t);break;default:if(s=this._invokeOne(function(i){return i!=this&&i.getDependency&&i.getDependency(e,t)}),!s)throw new Error("Unknown type: "+e);break}this.cache.add(n,s)}return s}getDependencies(e){let t=this.cache.get(e);if(!t){const n=this,s=this.json[e+(e==="mesh"?"es":"s")]||[];t=Promise.all(s.map(function(i,a){return n.getDependency(e,a)})),this.cache.add(e,t)}return t}loadBuffer(e){const t=this.json.buffers[e],n=this.fileLoader;if(t.type&&t.type!=="arraybuffer")throw new Error("THREE.GLTFLoader: "+t.type+" buffer type is not supported.");if(t.uri===void 0&&e===0)return Promise.resolve(this.extensions[ne.KHR_BINARY_GLTF].body);const s=this.options;return new Promise(function(i,a){n.load(Wt.resolveURL(t.uri,s.path),i,void 0,function(){a(new Error('THREE.GLTFLoader: Failed to load buffer "'+t.uri+'".'))})})}loadBufferView(e){const t=this.json.bufferViews[e];return this.getDependency("buffer",t.buffer).then(function(n){const s=t.byteLength||0,i=t.byteOffset||0;return n.slice(i,i+s)})}loadAccessor(e){const t=this,n=this.json,s=this.json.accessors[e];if(s.bufferView===void 0&&s.sparse===void 0){const a=kn[s.type],r=ls[s.componentType],A=s.normalized===!0,c=new r(s.count*a);return Promise.resolve(new nt(c,a,A))}const i=[];return s.bufferView!==void 0?i.push(this.getDependency("bufferView",s.bufferView)):i.push(null),s.sparse!==void 0&&(i.push(this.getDependency("bufferView",s.sparse.indices.bufferView)),i.push(this.getDependency("bufferView",s.sparse.values.bufferView))),Promise.all(i).then(function(a){const r=a[0],A=kn[s.type],c=ls[s.componentType],l=c.BYTES_PER_ELEMENT,h=l*A,d=s.byteOffset||0,p=s.bufferView!==void 0?n.bufferViews[s.bufferView].byteStride:void 0,u=s.normalized===!0;let m,b;if(p&&p!==h){const I=Math.floor(d/p),C="InterleavedBuffer:"+s.bufferView+":"+s.componentType+":"+I+":"+s.count;let E=t.cache.get(C);E||(m=new c(r,I*p,s.count*p/l),E=new Zo(m,p/l),t.cache.add(C,E)),b=new Zt(E,A,d%p/l,u)}else r===null?m=new c(s.count*A):m=new c(r,d,s.count*A),b=new nt(m,A,u);if(s.sparse!==void 0){const I=kn.SCALAR,C=ls[s.sparse.indices.componentType],E=s.sparse.indices.byteOffset||0,w=s.sparse.values.byteOffset||0,y=new C(a[1],E,s.sparse.count*I),S=new c(a[2],w,s.sparse.count*A);r!==null&&(b=new nt(b.array.slice(),b.itemSize,b.normalized)),b.normalized=!1;for(let R=0,x=y.length;R<x;R++){const D=y[R];if(b.setX(D,S[R*A]),A>=2&&b.setY(D,S[R*A+1]),A>=3&&b.setZ(D,S[R*A+2]),A>=4&&b.setW(D,S[R*A+3]),A>=5)throw new Error("THREE.GLTFLoader: Unsupported itemSize in sparse BufferAttribute.")}b.normalized=u}return b})}loadTexture(e){const t=this.json,n=this.options,s=t.textures[e].source,i=t.images[s];let a=this.textureLoader;if(i.uri){const r=n.manager.getHandler(i.uri);r!==null&&(a=r)}return this.loadTextureImage(e,s,a)}loadTextureImage(e,t,n){const s=this,i=this.json,a=i.textures[e],r=i.images[t],A=(r.uri||r.bufferView)+":"+a.sampler;if(this.textureCache[A])return this.textureCache[A];const c=this.loadImageSource(t,n).then(function(l){l.flipY=!1,l.name=a.name||r.name||"",l.name===""&&typeof r.uri=="string"&&r.uri.startsWith("data:image/")===!1&&(l.name=r.uri);const h=(i.samplers||{})[a.sampler]||{};return l.magFilter=Wi[h.magFilter]||dt,l.minFilter=Wi[h.minFilter]||js,l.wrapS=Vi[h.wrapS]||Vt,l.wrapT=Vi[h.wrapT]||Vt,l.anisotropy=4,s.associations.set(l,{textures:e}),l}).catch(function(){return null});return this.textureCache[A]=c,c}loadImageSource(e,t){const n=this,s=this.json,i=this.options;if(this.sourceCache[e]!==void 0)return this.