code: function() {
  		var gl = this.gl;
  
  		var buffer = this.buffer = gl.createBuffer();
  		gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
  		gl.bufferData(
  			gl.ARRAY_BUFFER,
  			new Float32Array([
  				-1.0, -1.0, 
  				1.0, -1.0,
  				-1.0,  1.0,
  				-1.0,  1.0,
  				1.0, -1.0,
  				1.0,  1.0
  			]),
  			gl.STATIC_DRAW
  		);
  	}
docs: Initialize the quad to draw to.