<!-- NEW7 — TEST 7 · THE WOVEN CITY · part 351 -->
th / 4 );

		}

		_oldTarget = this._renderer.getRenderTarget();
		_oldActiveCubeFace = this._renderer.getActiveCubeFace();
		_oldActiveMipmapLevel = this._renderer.getActiveMipmapLevel();
		_oldXrEnabled = this._renderer.xr.enabled;

		this._renderer.xr.enabled = false;

		const cubeUVRenderTarget = renderTarget || this._allocateTargets();
		this._textureToCubeUV( texture, cubeUVRenderTarget );
		this._applyPMREM( cubeUVRenderTarget );
		this._cleanup( cubeUVRenderTarget );

		return cubeUVRenderTarget;

	}

	_allocateTargets() {

		const width = 3 * Math.max( this._cubeSize, 16 * 7 );
		const height = 4 * this._cubeSize;

		const params = {
			magFilter: LinearFilter,
			minFilter: LinearFilter,
			generateMipmaps: false,
			type: HalfFloatType,
			format: RGBAFormat,
			colorSpace: LinearSRGBColorSpace,
			depthBuffer: false
		};

		const cubeUVRenderTarget = _createRenderTarget( width, height, params );

		if ( this._pingPongRenderTarget === null || this._pingPongRenderTarget.width !== width || this._pingPongRenderTarget.height !== height ) {

			if ( this._pingPongRenderTarget !== null ) {

				this._dispose();

			}

			this._pingPongRenderTarget = _createRenderTarget( width, height, params );

			const { _lodMax } = this;
			( { lodMeshes: this._lodMeshes, sizeLods: this._sizeLods } = _createPlanes( _lodMax ) );

			this._blurMaterial = _getBlurShader( _lodMax, width, height );
			this._ggxMaterial = _getGGXShader( _lodMax, width, height );

		}

		return cubeUVRenderTarget;

	}

	_compileMaterial( material ) {

		const mesh = new Mesh( new BufferGeometry(), material );
		this._renderer.compile( mesh, _flatCamera );

	}

	_sceneToCubeUV( scene, near, far, cubeUVRenderTarget, position ) {

		const fov = 90;
		const aspect = 1;
		const cubeCamera = new PerspectiveCamera( fov, aspect, near, far );
		const upSign = [ 1, -1, 1, 1, 1, 1 ];
		const forwardSign = [ 1, 1, 1, -1, -1, -1 ];
		const renderer = this._renderer;

		const originalAutoClear = renderer.autoClear;
		const toneMapping = renderer.toneMapping;
		renderer.getClearColor( _clearColor );

		renderer.toneMapping = NoToneMapping;
		renderer.autoClear = false;

		// https://github.com/mrdoob/three.js/issues/31413#issuecomment-3095966812
		const reversedDepthBuffer = renderer.state.buffers.depth.getReversed();

		if ( reversedDepthBuffer ) {

			renderer.setRenderTarget( cubeUVRenderTarget );
			renderer.clearDepth();
			renderer.setRenderTarget( null );

		}

		if ( this._backgroundBox === null ) {

			this._backgroundBox = new Mesh(
				new BoxGeometry(),
				new MeshBasicMaterial( {
					name: 'PMREM.Background',
					side: BackSide,
					depthWrite: false,
					depthTest: false,
				} )
			);

		}

		const backgroundBox = this._backgroundBox;
		const backgroundMaterial = backgroundBox.material;

		let useSolidColor = false;

		const background = scene.background;

		if ( background ) {

			if ( background.isColor ) {

				backgroundMaterial.color.copy( background );
				scene.background = null;
				useSolidColor = true;

			}

		} else {

			backgroundMaterial.color.copy( _clearColor );
			useSolidColor = true;

		}

		for ( let i = 0; i < 6; i ++ ) {

			const col = i % 3;

			if ( col === 0 ) {

				cubeCamera.up.set( 0, upSign[ i ], 0 );
				cubeCamera.position.set( position.x, position.y, position.z );
				cubeCamera.lookAt( position.x + forwardSign[ i ], position.y, position.z );

			} else if ( col === 1 ) {

				cubeCamera.up.set( 0, 0, upSign[ i ] );
				cubeCamera.position.set( position.x, position.y, position.z );
				cubeCamera.lookAt( position.x, position.y + forwardSign[ i ], position.z );


			} else {

				cubeCamera.up.set( 0, upSign[ i ], 0 );
				cubeCamera.position.set( position.x, position.y, position.z );
				cubeCamera.lookAt( position.x, position.y, position.z + forwardSign[ i ] );

			}

			const size = this._cubeSize;

			_setViewport( cubeUVRenderTarget, col * size, i > 2 ? size : 0, size, size );

			renderer.setRenderTarget( cubeUVRenderTarget );

			if ( useSolidColor ) {

				renderer.render( backgroundBox, cubeCamera );

			}

			renderer.render( scene, cubeCamera );

		}

		renderer.toneMapping = toneMapping;
		renderer.autoClear = originalAutoClear;
		scene.background = background;

	}

	_textureToCubeUV( texture, cubeUVRenderTarget ) {

		const renderer = this._renderer;

		const isCubeTexture = ( texture.mapping === CubeReflectionMapping || texture.mapping === CubeRefractionMapping );

		if ( isCubeTexture ) {

			if ( this._cubemapMaterial === null ) {

				this._cubemapMaterial = _getCubemapMaterial();

			}

			this._cubemapMaterial.uniforms.flipEnvMap.value = ( texture.isRenderTargetTexture === false ) ? -1 : 1;

		} else {

			if ( this._equirectMaterial === null ) {

				this._equirectMaterial = _getEquirectMaterial();

			}

		}

		const material = isCubeTexture ? this._cubemapMaterial : this._equirectMaterial;

		const mesh = this._lodMeshes[ 0 ];