e=function(){return v},this.getActiveMipmapLevel=function(){return y},this.getRenderTarget=function(){return _},this.setRenderTarget=function(t,e=0,n=0){_=t,v=e,y=n,t&&void 0===Z.get(t).__webglFramebuffer&&J.setupRenderTarget(t);let i=null,r=!1,s=!1;if(t){const n=t.texture;(n.isDataTexture3D||n.isDataTexture2DArray)&&(s=!0);const a=Z.get(t).__webglFramebuffer;t.isWebGLCubeRenderTarget?(i=a[e],r=!0):i=t.isWebGLMultisampleRenderTarget?Z.get(t).__webglMultisampledFramebuffer:a,T.copy(t.viewport),A.copy(t.scissor),L=t.scissorTest}else T.copy(N).multiplyScalar(P).floor(),A.copy(B).multiplyScalar(P).floor(),L=z;if(q.bindFramebuffer(36160,i),q.viewport(T),q.scissor(A),q.setScissorTest(L),r){const i=Z.get(t.texture);pt.framebufferTexture2D(36160,36064,34069+e,i.__webglTexture,n)}else if(s){const i=Z.get(t.texture),r=e||0;pt.framebufferTextureLayer(36160,36064,i.__webglTexture,n||0,r)}},this.readRenderTargetPixels=function(t,e,n,i,r,s,a){if(!t||!t.isWebGLRenderTarget)return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.");let o=Z.get(t).__webglFramebuffer;if(t.isWebGLCubeRenderTarget&&void 0!==a&&(o=o[a]),o){q.bindFramebuffer(36160,o);try{const a=t.texture,o=a.format,l=a.type;if(o!==E&&ut.convert(o)!==pt.getParameter(35739))return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.");const c=l===M&&(W.has("EXT_color_buffer_half_float")||j.isWebGL2&&W.has("EXT_color_buffer_float"));if(!(l===x||ut.convert(l)===pt.getParameter(35738)||l===b&&(j.isWebGL2||W.has("OES_texture_float")||W.has("WEBGL_color_buffer_float"))||c))return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.");36053===pt.checkFramebufferStatus(36160)?e>=0&&e<=t.width-i&&n>=0&&n<=t.height-r&&pt.readPixels(e,n,i,r,ut.convert(o),ut.convert(l),s):console.error("THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.")}finally{const t=null!==_?Z.get(_).__webglFramebuffer:null;q.bindFramebuffer(36160,t)}}},this.copyFramebufferToTexture=function(t,e,n=0){const i=Math.pow(2,-n),r=Math.floor(e.image.width*i),s=Math.floor(e.image.height*i),a=ut.convert(e.format);J.setTexture2D(e,0),pt.copyTexImage2D(3553,n,a,t.x,t.y,r,s,0),q.unbindTexture()},this.copyTextureToTexture=function(t,e,n,i=0){const r=e.image.width,s=e.image.height,a=ut.convert(n.format),o=ut.convert(n.type);J.setTexture2D(n,0),pt.pixelStorei(37440,n.flipY),pt.pixelStorei(37441,n.premultiplyAlpha),pt.pixelStorei(3317,n.unpackAlignment),e.isDataTexture?pt.texSubImage2D(3553,i,t.x,t.y,r,s,a,o,e.image.data):e.isCompressedTexture?pt.compressedTexSubImage2D(3553,i,t.x,t.y,e.mipmaps[0].width,e.mipmaps[0].height,a,e.mipmaps[0].data):pt.texSubImage2D(3553,i,t.x,t.y,a,o,e.image),0===i&&n.generateMipmaps&&pt.generateMipmap(3553),q.unbindTexture()},this.copyTextureToTexture3D=function(t,e,n,i,r=0){if(f.isWebGL1Renderer)return void console.warn("THREE.WebGLRenderer.copyTextureToTexture3D: can only be used with WebGL2.");const{width:s,height:a,data:o}=n.image,l=ut.convert(i.format),c=ut.convert(i.type);let h;if(i.isDataTexture3D)J.setTexture3D(i,0),h=32879;else{if(!i.isDataTexture2DArray)return void console.warn("THREE.WebGLRenderer.copyTextureToTexture3D: only supports THREE.DataTexture3D and THREE.DataTexture2DArray.");J.setTexture2DArray(i,0),h=35866}pt.pixelStorei(37440,i.flipY),pt.pixelStorei(37441,i.premultiplyAlpha),pt.pixelStorei(3317,i.unpackAlignment);const u=pt.getParameter(3314),d=pt.getParameter(32878),p=pt.getParameter(3316),m=pt.getParameter(3315),g=pt.getParameter(32877);pt.pixelStorei(3314,s),pt.pixelStorei(32878,a),pt.pixelStorei(3316,t.min.x),pt.pixelStorei(3315,t.min.y),pt.pixelStorei(32877,t.min.z),pt.texSubImage3D(h,r,e.x,e.y,e.z,t.max.x-t.min.x+1,t.max.y-t.min.y+1,t.max.z-t.min.z+1,l,c,o),pt.pixelStorei(3314,u),pt.pixelStorei(32878,d),pt.pixelStorei(3316,p),pt.pixelStorei(3315,m),pt.pixelStorei(32877,g),0===r&&i.generateMipmaps&&pt.generateMipmap(h),q.unbindTexture()},this.initTexture=function(t){J.setTexture2D(t,0),q.unbindTexture()},this.resetState=function(){v=0,y=0,_=null,q.reset(),dt.reset()},"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe",{detail:this}))}class bs extends ws{}bs.prototype.isWebGL1Renderer=!0;class Ms{constructor(t,e=25e-5){this.name="",this.color=new tn(t),this.density=e}clone(){return new Ms(this.color,this.density)}toJSON(){return{type:"FogExp2",color:this.color.getHex(),density:this.density}}}Ms.prototype.isFogExp2=!0;class Ss{constructor(t,e=1,n=1e3){this.name="",this.color=new tn(t),this.near=e,this.far=n}clone(){return new Ss(this.color,this.near,this.far)}toJSON(){return{type:"Fog",color:this.color.getHex(),near:this.near,far:this.far}}}Ss.prototype.isFog=!0;class Ts extends Ce{constructor(){super(),this.type="Scene",