async renderAsync( scene, camera ) {

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

		this._renderScene( scene, camera );

	}
Renders the scene in an async fashion.

@async
@param {Object3D} scene - The scene or 3D object to render.
@param {Camera} camera - The camera.
@return {Promise} A Promise that resolves when the render has been finished.