code: function GraphicsRenderer(renderer)
  {
      ObjectRenderer.call(this, renderer);
  
      this.graphicsDataPool = [];
  
      this.primitiveShader = null;
      this.complexPrimitiveShader = null;
  }
docs: Renders the graphics object.
  
  @class
  @private
  @memberof PIXI
  @extends ObjectRenderer
  @param renderer {WebGLRenderer} The renderer this object renderer works for.