erleavedBuffers={}),void 0===t.interleavedBuffers[this.data.uuid]&&(t.interleavedBuffers[this.data.uuid]=this.data.toJSON(t)),{isInterleavedBufferAttribute:!0,itemSize:this.itemSize,data:this.data.uuid,offset:this.offset,normalized:this.normalized}}}Ls.prototype.isInterleavedBufferAttribute=!0;class Rs extends Xe{constructor(t){super(),this.type="SpriteMaterial",this.color=new tn(16777215),this.map=null,this.alphaMap=null,this.rotation=0,this.sizeAttenuation=!0,this.transparent=!0,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.alphaMap=t.alphaMap,this.rotation=t.rotation,this.sizeAttenuation=t.sizeAttenuation,this}}let Cs;Rs.prototype.isSpriteMaterial=!0;const Ps=new Lt,Ds=new Lt,Is=new Lt,Ns=new vt,Bs=new vt,zs=new se,Fs=new Lt,Os=new Lt,Hs=new Lt,Gs=new vt,Us=new vt,ks=new vt;class Vs extends Ce{constructor(t){if(super(),this.type="Sprite",void 0===Cs){Cs=new En;const t=new Float32Array([-.5,-.5,0,0,0,.5,-.5,0,1,0,.5,.5,0,1,1,-.5,.5,0,0,1]),e=new Es(t,5);Cs.setIndex([0,1,2,0,2,3]),Cs.setAttribute("position",new Ls(e,3,0,!1)),Cs.setAttribute("uv",new Ls(e,2,3,!1))}this.geometry=Cs,this.material=void 0!==t?t:new Rs,this.center=new vt(.5,.5)}raycast(t,e){null===t.camera&&console.error('THREE.Sprite: "Raycaster.camera" needs to be set in order to raycast against sprites.'),Ds.setFromMatrixScale(this.matrixWorld),zs.copy(t.camera.matrixWorld),this.modelViewMatrix.multiplyMatrices(t.camera.matrixWorldInverse,this.matrixWorld),Is.setFromMatrixPosition(this.modelViewMatrix),t.camera.isPerspectiveCamera&&!1===this.material.sizeAttenuation&&Ds.multiplyScalar(-Is.z);const n=this.material.rotation;let i,r;0!==n&&(r=Math.cos(n),i=Math.sin(n));const s=this.center;Ws(Fs.set(-.5,-.5,0),Is,s,Ds,i,r),Ws(Os.set(.5,-.5,0),Is,s,Ds,i,r),Ws(Hs.set(.5,.5,0),Is,s,Ds,i,r),Gs.set(0,0),Us.set(1,0),ks.set(1,1);let a=t.ray.intersectTriangle(Fs,Os,Hs,!1,Ps);if(null===a&&(Ws(Os.set(-.5,.5,0),Is,s,Ds,i,r),Us.set(0,1),a=t.ray.intersectTriangle(Fs,Hs,Os,!1,Ps),null===a))return;const o=t.ray.origin.distanceTo(Ps);ot.far||e.push({distance:o,point:Ps.clone(),uv:je.getUV(Ps,Fs,Os,Hs,Gs,Us,ks,new vt),face:null,object:this})}copy(t){return super.copy(t),void 0!==t.center&&this.center.copy(t.center),this.material=t.material,this}}function Ws(t,e,n,i,r,s){Ns.subVectors(t,n).addScalar(.5).multiply(i),void 0!==r?(Bs.x=s*Ns.x-r*Ns.y,Bs.y=r*Ns.x+s*Ns.y):Bs.copy(Ns),t.copy(e),t.x+=Bs.x,t.y+=Bs.y,t.applyMatrix4(zs)}Vs.prototype.isSprite=!0;const js=new Lt,qs=new Lt;class Xs extends Ce{constructor(){super(),this._currentLevel=0,this.type="LOD",Object.defineProperties(this,{levels:{enumerable:!0,value:[]},isLOD:{value:!0}}),this.autoUpdate=!0}copy(t){super.copy(t,!1);const e=t.levels;for(let t=0,n=e.length;t0){let n,i;for(n=1,i=e.length;n0){js.setFromMatrixPosition(this.matrixWorld);const n=t.ray.origin.distanceTo(js);this.getObjectForDistance(n).raycast(t,e)}}update(t){const e=this.levels;if(e.length>1){js.setFromMatrixPosition(t.matrixWorld),qs.setFromMatrixPosition(this.matrixWorld);const n=js.distanceTo(qs)/t.zoom;let i,r;for(e[0].object.visible=!0,i=1,r=e.length;i=e[i].distance;i++)e[i-1].object.visible=!1,e[i].object.visible=!0;for(this._currentLevel=i-1;i