getPreviousTexture( name ) {

		let texture = this._previousTextures[ name ];

		if ( texture === undefined ) {

			texture = this.getTexture( name ).clone();

			this._previousTextures[ name ] = texture;

		}

		return texture;

	}
Returns the texture holding the data of the previous frame for the given output name.

@param {string} name - The output name to get the texture for.
@return {Texture} The texture holding the data of the previous frame.