constructor( cacheKey, vertexProgram, fragmentProgram ) {

		super( cacheKey );

		/**
		 * The pipeline's vertex shader.
		 *
		 * @type {ProgrammableStage}
		 */
		this.vertexProgram = vertexProgram;

		/**
		 * The pipeline's fragment shader.
		 *
		 * @type {ProgrammableStage}
		 */
		this.fragmentProgram = fragmentProgram;

	}
Constructs a new render pipeline.

@param {string} cacheKey - The pipeline's cache key.
@param {ProgrammableStage} vertexProgram - The pipeline's vertex shader.
@param {ProgrammableStage} fragmentProgram - The pipeline's fragment shader.