0)n.stencilWrite=this.stencilWrite;if(this.rotation!==void 0&&this.rotation!==0)n.rotation=this.rotation;if(this.polygonOffset===!0)n.polygonOffset=!0;if(this.polygonOffsetFactor!==0)n.polygonOffsetFactor=this.polygonOffsetFactor;if(this.polygonOffsetUnits!==0)n.polygonOffsetUnits=this.polygonOffsetUnits;if(this.linewidth!==void 0&&this.linewidth!==1)n.linewidth=this.linewidth;if(this.dashSize!==void 0)n.dashSize=this.dashSize;if(this.gapSize!==void 0)n.gapSize=this.gapSize;if(this.scale!==void 0)n.scale=this.scale;if(this.dithering===!0)n.dithering=!0;if(this.alphaTest>0)n.alphaTest=this.alphaTest;if(this.alphaHash===!0)n.alphaHash=!0;if(this.alphaToCoverage===!0)n.alphaToCoverage=!0;if(this.premultipliedAlpha===!0)n.premultipliedAlpha=!0;if(this.forceSinglePass===!0)n.forceSinglePass=!0;if(this.wireframe===!0)n.wireframe=!0;if(this.wireframeLinewidth>1)n.wireframeLinewidth=this.wireframeLinewidth;if(this.wireframeLinecap!=="round")n.wireframeLinecap=this.wireframeLinecap;if(this.wireframeLinejoin!=="round")n.wireframeLinejoin=this.wireframeLinejoin;if(this.flatShading===!0)n.flatShading=!0;if(this.visible===!1)n.visible=!1;if(this.toneMapped===!1)n.toneMapped=!1;if(this.fog===!1)n.fog=!1;if(Object.keys(this.userData).length>0)n.userData=this.userData;function i(s){let a=[];for(let r in s){let o=s[r];delete o.metadata,a.push(o)}return a}if(e){let s=i(t.textures),a=i(t.images);if(s.length>0)n.textures=s;if(a.length>0)n.images=a}return n}clone(){return new this.constructor().copy(this)}copy(t){this.name=t.name,this.blending=t.blending,this.side=t.side,this.vertexColors=t.vertexColors,this.opacity=t.opacity,this.transparent=t.transparent,this.blendSrc=t.blendSrc,this.blendDst=t.blendDst,this.blendEquation=t.blendEquation,this.blendSrcAlpha=t.blendSrcAlpha,this.blendDstAlpha=t.blendDstAlpha,this.blendEquationAlpha=t.blendEquationAlpha,this.blendColor.copy(t.blendColor),this.blendAlpha=t.blendAlpha,this.depthFunc=t.depthFunc,this.depthTest=t.depthTest,this.depthWrite=t.depthWrite,this.stencilWriteMask=t.stencilWriteMask,this.stencilFunc=t.stencilFunc,this.stencilRef=t.stencilRef,this.stencilFuncMask=t.stencilFuncMask,this.stencilFail=t.stencilFail,this.stencilZFail=t.stencilZFail,this.stencilZPass=t.stencilZPass,this.stencilWrite=t.stencilWrite;let e=t.clippingPlanes,n=null;if(e!==null){let i=e.length;n=Array(i);for(let s=0;s!==i;++s)n[s]=e[s].clone()}return this.clippingPlanes=n,this.clipIntersection=t.clipIntersection,this.clipShadows=t.clipShadows,this.shadowSide=t.shadowSide,this.colorWrite=t.colorWrite,this.precision=t.precision,this.polygonOffset=t.polygonOffset,this.polygonOffsetFactor=t.polygonOffsetFactor,this.polygonOffsetUnits=t.polygonOffsetUnits,this.dithering=t.dithering,this.alphaTest=t.alphaTest,this.alphaHash=t.alphaHash,this.alphaToCoverage=t.alphaToCoverage,this.premultipliedAlpha=t.premultipliedAlpha,this.forceSinglePass=t.forceSinglePass,this.visible=t.visible,this.toneMapped=t.toneMapped,this.userData=JSON.parse(JSON.stringify(t.userData)),this}dispose(){this.dispatchEvent({type:"dispose"})}set needsUpdate(t){if(t===!0)this.version++}}class Pn extends qi{constructor(t){super();this.isMeshBasicMaterial=!0,this.type="MeshBasicMaterial",this.color=new Xt(16777215),this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.envMapRotation=new Dn,this.combine=0,this.reflectivity=1,this.refractionRatio=0.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.fog=!0,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.envMapRotation.copy(t.envMapRotation),this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.fog=t.fog,this}}var ln=new C,Jh=new Nt,RS=0;class tn{constructor(t,e,n=!1){if(Array.isArray(t))throw TypeError("THREE.BufferAttribute: array should be a Typed Array.");this.isBufferAttribute=!0,Object.defineProperty(this,"id",{value:RS++}),this.name="",this.array=t,this.itemSize=e,this.count=t!==void 0?t.length/e:0,this.normalized=n,this.usage=35044,this.updateRanges=[],this.gpuType=1015,this.version=0}onUploadCallback(){}set needsUpdate(t){if(t===!0)this.version++}setUsage(t){return this.usage=t,this}addUpdateRange(t,e){this.updateRanges.push({start:t,count:e})}clearUpdateRanges(){this.updateRanges.length=0}copy(t){return this.name=t.name,this.array=new t.array.constructor(t.array),this.itemSize=t.itemSize,this.count=t.count,this.normalized=t.normalized,this.usage=t.u