u-stats.js"></script>
    <script src="js/third-party/wglu/wglu-texture.js"></script>

    <script src="js/vr-cube-sea.js"></script>
    <script src="js/vr-samples-util.js"></script>
  </head>
  <body>
    <canvas id="webgl-canvas"></canvas>
    <script>
      /* global mat4, VRCubeSea, WGLUStats, WGLUTextureLoader, VRSamplesUtil */
      (function () {
      "use strict";

      var vrDisplay = null;
      var frameData = null;
      var projectionMat = mat4.create();
      var viewMat = mat4.create();
   