async clearAsync( color = true, depth = true, stencil = true ) {

		if ( this._initialized === false ) await this.init();

		this.clear( color, depth, stencil );

	}
Async version of {@link Renderer#clear}.

@async
@param {boolean} [color=true] - Whether the color buffer should be cleared or not.
@param {boolean} [depth=true] - Whether the depth buffer should be cleared or not.
@param {boolean} [stencil=true] - Whether the stencil buffer should be cleared or not.
@return {Promise} A Promise that resolves when the clear operation has been executed.