text: var config = {
      type: Phaser.WEBGL,
      parent: 'phaser-example',
      width: 800,
      height: 600,
      scene: {
          preload: preload,
          create: create
      }
  };
  
  var game = new Phaser.Game(config);
  
  function preload ()
  {
      this.load.glsl('wave', 'assets/shaders/shader1.frag');
      this.load.image('pic', 'assets/pics/sao-sinon.png');
      this.load.image('bg', 'assets/pics/purple-dots.png');
  }
  
  function create ()
  {
      this.add.image(400, 300, 'bg');
  
      var shader = this.make.shader({
          key: 'wave',
          x: 400,
          y: 300,
          width: 800,
          height: 600,
          add: false
      });
  
      //  Make a Bitmap Mask from it
      var mask = shader.createBitmapMask();
  
      //  Apply the mask to this image
      this.add.image(400, 300, 'pic').setMask(mask);
  }
  