constructor( clearcoat = false, sheen = false, iridescence = false, anisotropy = false, transmission = false, dispersion = false ) {

		super();

		/**
		 * Whether clearcoat is supported or not.
		 *
		 * @type {boolean}
		 * @default false
		 */
		this.clearcoat = clearcoat;

		/**
		 * Whether sheen is supported or not.
		 *
		 * @type {boolean}
		 * @default false
		 */
		this.sheen = sheen;

		/**
		 * Whether iridescence is supported or not.
		 *
		 * @type {boolean}
		 * @default false
		 */
		this.iridescence = iridescence;

		/**
		 * Whether anisotropy is supported or not.
		 *
		 * @type {boolean}
		 * @default false
		 */
		this.anisotropy = anisotropy;

		/**
		 * Whether transmission is supported or not.
		 *
		 * @type {boolean}
		 * @default false
		 */
		this.transmission = transmission;

		/**
		 * Whether dispersion is supported or not.
		 *
		 * @type {boolean}
		 * @default false
		 */
		this.dispersion = dispersion;

		/**
		 * The clear coat radiance.
		 *
		 * @type {?Node}
		 * @default null
		 */
		this.clearcoatRadiance = null;

		/**
		 * The clear coat specular direct.
		 *
		 * @type {?Node}
		 * @default null
		 */
		this.clearcoatSpecularDirect = null;

		/**
		 * The clear coat specular indirect.
		 *
		 * @type {?Node}
		 * @default null
		 */
		this.clearcoatSpecularIndirect = null;

		/**
		 * The sheen specular direct.
		 *
		 * @type {?Node}
		 * @default null
		 */
		this.sheenSpecularDirect = null;

		/**
		 * The sheen specular indirect.
		 *
		 * @type {?Node}
		 * @default null
		 */
		this.sheenSpecularIndirect = null;

		/**
		 * The iridescence Fresnel.
		 *
		 * @type {?Node}
		 * @default null
		 */
		this.iridescenceFresnel = null;

		/**
		 * The iridescence F0.
		 *
		 * @type {?Node}
		 * @default null
		 */
		this.iridescenceF0 = null;

	}
Constructs a new physical lighting model.

@param {boolean} [clearcoat=false] - Whether clearcoat is supported or not.
@param {boolean} [sheen=false] - Whether sheen is supported or not.
@param {boolean} [iridescence=false] - Whether iridescence is supported or not.
@param {boolean} [anisotropy=false] - Whether anisotropy is supported or not.
@param {boolean} [transmission=false] - Whether transmission is supported or not.
@param {boolean} [dispersion=false] - Whether dispersion is supported or not.