constructor( width = 1, height = 1, options = {} ) {

		super( width, height, options );

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

	}
Constructs a new 3D render target.

@param {number} [width=1] - The width of the render target.
@param {number} [height=1] - The height of the render target.
@param {RenderTarget~Options} [options] - The configuration object.