<!-- NEW7 — TEST 7 · THE WOVEN CITY · part 349 -->
nableLocalClipping;

		numGlobalPlanes = planes.length;

		return enabled;

	};

	this.beginShadows = function () {

		renderingShadows = true;
		projectPlanes( null );

	};

	this.endShadows = function () {

		renderingShadows = false;

	};

	this.setGlobalState = function ( planes, camera ) {

		globalState = projectPlanes( planes, camera, 0 );

	};

	this.setState = function ( material, camera, useCache ) {

		const planes = material.clippingPlanes,
			clipIntersection = material.clipIntersection,
			clipShadows = material.clipShadows;

		const materialProperties = properties.get( material );

		if ( ! localClippingEnabled || planes === null || planes.length === 0 || renderingShadows && ! clipShadows ) {

			// there's no local clipping

			if ( renderingShadows ) {

				// there's no global clipping

				projectPlanes( null );

			} else {

				resetGlobalState();

			}

		} else {

			const nGlobal = renderingShadows ? 0 : numGlobalPlanes,
				lGlobal = nGlobal * 4;

			let dstArray = materialProperties.clippingState || null;

			uniform.value = dstArray; // ensure unique state

			dstArray = projectPlanes( planes, camera, lGlobal, useCache );

			for ( let i = 0; i !== lGlobal; ++ i ) {

				dstArray[ i ] = globalState[ i ];

			}

			materialProperties.clippingState = dstArray;
			this.numIntersection = clipIntersection ? this.numPlanes : 0;
			this.numPlanes += nGlobal;

		}


	};

	function resetGlobalState() {

		if ( uniform.value !== globalState ) {

			uniform.value = globalState;
			uniform.needsUpdate = numGlobalPlanes > 0;

		}

		scope.numPlanes = numGlobalPlanes;
		scope.numIntersection = 0;

	}

	function projectPlanes( planes, camera, dstOffset, skipTransform ) {

		const nPlanes = planes !== null ? planes.length : 0;
		let dstArray = null;

		if ( nPlanes !== 0 ) {

			dstArray = uniform.value;

			if ( skipTransform !== true || dstArray === null ) {

				const flatSize = dstOffset + nPlanes * 4,
					viewMatrix = camera.matrixWorldInverse;

				viewNormalMatrix.getNormalMatrix( viewMatrix );

				if ( dstArray === null || dstArray.length < flatSize ) {

					dstArray = new Float32Array( flatSize );

				}

				for ( let i = 0, i4 = dstOffset; i !== nPlanes; ++ i, i4 += 4 ) {

					plane.copy( planes[ i ] ).applyMatrix4( viewMatrix, viewNormalMatrix );

					plane.normal.toArray( dstArray, i4 );
					dstArray[ i4 + 3 ] = plane.constant;

				}

			}

			uniform.value = dstArray;
			uniform.needsUpdate = true;

		}

		scope.numPlanes = nPlanes;
		scope.numIntersection = 0;

		return dstArray;

	}

}

const LOD_MIN = 4;

// The number of extra mips.
// Used for scene blur in fromScene() method.
const EXTRA_LODS = 6;

// The number of spiral samples per blur pass.
// Used for scene blur in fromScene() method.
const BLUR_SAMPLES = 20;

// GGX VNDF importance sampling configuration
const GGX_SAMPLES = 256;

const _flatCamera = /*@__PURE__*/ new OrthographicCamera();
const _clearColor = /*@__PURE__*/ new Color();
let _oldTarget = null;
let _oldActiveCubeFace = 0;
let _oldActiveMipmapLevel = 0;
let _oldXrEnabled = false;

const _origin = /*@__PURE__*/ new Vector3();
const _direction = /*@__PURE__*/ new Vector3();

/**
 * This class generates a Prefiltered, Mipmapped Radiance Environment Map
 * (PMREM) from a cubeMap environment texture. This allows different levels of
 * blur to be quickly accessed based on material roughness. It is packed into a
 * special CubeUV format that allows us to perform custom interpolation so that
 * we can support nonlinear formats such as RGBE. Unlike a traditional mipmap
 * chain, it only goes down to the LOD_MIN level (above), and then creates extra
 * even more filtered 'mips' at the same LOD_MIN resolution, associated with
 * higher roughness levels. In this way we maintain resolution to smoothly
 * interpolate diffuse lighting while limiting sampling computation.
 *
 * The prefiltering uses GGX VNDF (Visible Normal Distribution Function)
 * importance sampling based on "Sampling the GGX Distribution of Visible Normals"
 * (Heitz, 2018) to generate environment maps that accurately match the GGX BRDF
 * used in material rendering for physically-based image-based lighting.
 */
class PMREMGenerator {

	/**
	 * Constructs a new PMREM generator.
	 *
	 * @param {WebGLRenderer} renderer - The renderer.
	 */
	constructor( renderer ) {

		this._renderer = renderer;
		this._pingPongRenderTarget = null;

		this._lodMax = 0;
		this._cubeSize = 0;
		this._sizeLods = [];
		this._lodMeshes = [];

		this._backgroundBox = null;

		this._cubemapMaterial = null;
		this._equirectMaterial = null;

		this._blurMaterial = null;
		this._ggxMaterial = null;

	}

	/**
	 * Generates a PMREM from a supplied Scene, which can be faster than using an
	 * image if networking bandwidth is low. Optional sigma specifies a blur radius
	 * in radians to be applied to the scene before PMREM generation. Optional near
	 * and far planes ensure the