RenderTexture

HTML

<script src="http://www.goodboydigital.com/pixijs/examples/8/pixi.js"></script>
<canvas id="myCanvas"></canvas>

CSS

margin: 0;
			padding: 0;
			background-color: #000000;

JavaScript

var stage, renderer;
	stage = new PIXI.Stage(0x0000ff, true);
	stage.setInteractive(true);
	renderer = PIXI.autoDetectRenderer(320, 480, myCanvas);

	var myContainer = new PIXI.DisplayObjectContainer();
  
  console.log("PIXI is", PIXI)

	r1 = new PIXI.Graphics();

	r1.beginFill(0x00FF00);
	r1.drawRect(10, 10, 20, 20);
	r1.endFill();

	r1.beginFill(0xFFFF00);
	r1.drawRect(30, 10, 20, 20);
	r1.endFill();

	myContainer.addChild(r1);

	var texture = new PIXI.RenderTexture();
	texture.render(myContainer);
	var background = new PIXI.Sprite(texture);

	stage.addChild(background);

	requestAnimFrame(animate);

	function animate() {
	    requestAnimFrame(animate);
	    background.position.x += 0.1;
	    renderer.render(stage);
	}