<!-- NEW4 — TEST 4 · THE QUILT · part 80 -->
+ e[ 3 ] * g + e[ 6 ] * b;
		this.g = e[ 1 ] * r + e[ 4 ] * g + e[ 7 ] * b;
		this.b = e[ 2 ] * r + e[ 5 ] * g + e[ 8 ] * b;

		return this;

	}

	/**
	 * Returns `true` if this color is equal with the given one.
	 *
	 * @param {Color} c - The color to test for equality.
	 * @return {boolean} Whether this bounding color is equal with the given one.
	 */
	equals( c ) {

		return ( c.r === this.r ) && ( c.g === this.g ) && ( c.b === this.b );

	}

	/**
	 * Sets this color's RGB components from the given array.
	 *
	 * @param {Array<number>} array - An array holding the RGB values.
	 * @param {number} [offset=0] - The offset into the array.
	 * @return {Color} A reference to this color.
	 */
	fromArray( array, offset = 0 ) {

		this.r = array[ offset ];
		this.g = array[ offset + 1 ];
		this.b = array[ offset + 2 ];

		return this;

	}

	/**
	 * Writes the RGB components of this color to the given array. If no array is provided,
	 * the method returns a new instance.
	 *
	 * @param {Array<number>} [array=[]] - The target array holding the color components.
	 * @param {number} [offset=0] - Index of the first element in the array.
	 * @return {Array<number>} The color components.
	 */
	toArray( array = [], offset = 0 ) {

		array[ offset ] = this.r;
		array[ offset + 1 ] = this.g;
		array[ offset + 2 ] = this.b;

		return array;

	}

	/**
	 * Sets the components of this color from the given buffer attribute.
	 *
	 * @param {BufferAttribute} attribute - The buffer attribute holding color data.
	 * @param {number} index - The index into the attribute.
	 * @return {Color} A reference to this color.
	 */
	fromBufferAttribute( attribute, index ) {

		this.r = attribute.getX( index );
		this.g = attribute.getY( index );
		this.b = attribute.getZ( index );

		return this;

	}

	/**
	 * This methods defines the serialization result of this class. Returns the color
	 * as a hexadecimal value.
	 *
	 * @return {number} The hexadecimal value.
	 */
	toJSON() {

		return this.getHex();

	}

	*[ Symbol.iterator ]() {

		yield this.r;
		yield this.g;
		yield this.b;

	}

}

const _color = /*@__PURE__*/ new Color();

/**
 * A dictionary with X11 color names.
 *
 * Note that multiple words such as Dark Orange become the string 'darkorange'.
 *
 * @static
 * @type {Object}
 */
Color.NAMES = _colorKeywords;

/**
 * This class can be used to define an exponential squared fog,
 * which gives a clear view near the camera and a faster than exponentially
 * densening fog farther from the camera.
 *
 * ```js
 * const scene = new THREE.Scene();
 * scene.fog = new THREE.FogExp2( 0xcccccc, 0.002 );
 * ```
 */
class FogExp2 {

	/**
	 * Constructs a new fog.
	 *
	 * @param {number|Color} color - The fog's color.
	 * @param {number} [density=0.00025] - Defines how fast the fog will grow dense.
	 */
	constructor( color, density = 0.00025 ) {

		/**
		 * This flag can be used for type testing.
		 *
		 * @type {boolean}
		 * @readonly
		 * @default true
		 */
		this.isFogExp2 = true;

		/**
		 * The name of the fog.
		 *
		 * @type {string}
		 */
		this.name = '';

		/**
		 * The fog's color.
		 *
		 * @type {Color}
		 */
		this.color = new Color( color );

		/**
		 *  Defines how fast the fog will grow dense.
		 *
		 * @type {number}
		 * @default 0.00025
		 */
		this.density = density;

	}

	/**
	 * Returns a new fog with copied values from this instance.
	 *
	 * @return {FogExp2} A clone of this instance.
	 */
	clone() {

		return new FogExp2( this.color, this.density );

	}

	/**
	 * Serializes the fog into JSON.
	 *
	 * @param {?(Object|string)} meta - An optional value holding meta information about the serialization.
	 * @return {Object} A JSON object representing the serialized fog
	 */
	toJSON( /* meta */ ) {

		return {
			type: 'FogExp2',
			name: this.name,
			color: this.color.getHex(),
			density: this.density
		};

	}

}

/**
 * This class can be used to define a linear fog that grows linearly denser
 * with the distance.
 *
 * ```js
 * const scene = new THREE.Scene();
 * scene.fog = new THREE.Fog( 0xcccccc, 10, 15 );
 * ```
 */
class Fog {

	/**
	 * Constructs a new fog.
	 *
	 * @param {number|Color} color - The fog's color.
	 * @param {number} [near=1] - The minimum distance to start applying fog.
	 * @param {number} [far=1000] - The maximum distance at which fog stops being calculated and applied.
	 */
	constructor( color, near = 1, far = 1000 ) {

		/**
		 * This flag can be used for type testing.
		 *
		 * @type {boolean}
		 * @readonly
		 * @default true
		 */
		this.isFog = true;

		/**
		 * The name of the fog.
		 *
		 * @type {string}
		 */
		this.name = '';

		/**
		 * The fog's color.
		 *
		 * @type {Color}
		 */
		this.color = new Color( color );

		/**
		 * The minimum distance to start applying fog. Objects that are less than
		 * `near` units from the active camera won't be affected by fog.
		 *
		 * @type {number}
		 * @default 1
		 */
		this.near = near;

		/**
		 *