text: var viewer = new Cesium.Viewer('cesiumContainer', {showRenderLoopErrors : false});
  
  var videoElement = document.getElementById('trailer');
  
  var sphere = viewer.entities.add({
      position : Cesium.Cartesian3.fromDegrees(-79, 39, 1000),
      ellipsoid : {
          radii : new Cesium.Cartesian3(1000, 1000, 1000),
          material : videoElement
      }
  });
  
  viewer.trackedEntity = sphere;
  
  var synchronizer;
  Sandcastle.addToggleButton('Clock synchronization', false, function(checked) {
      // By default, the video plays normally and simply shows
      // whatever frame the video is currently on.
      // We can synchronize the video with the scene clock
      // using a VideoSynchronizer.
  
      if (Cesium.defined(synchronizer)) {
          synchronizer = synchronizer.destroy();
          videoElement.playbackRate = 1.0;
          return;
      }
  
      synchronizer = new Cesium.VideoSynchronizer({
          clock : viewer.clock,
          element : videoElement
      });
  });
  
  // Since it's just an image material, we can modify the number
  // of times the video repeats in each direction..
  var isRepeating = true;
  Sandcastle.addToggleButton('Image Repeat', isRepeating, function(checked) {
      isRepeating = checked;
  });
  
  sphere.ellipsoid.material.repeat = new Cesium.CallbackProperty(function(time, result) {
      if (!Cesium.defined(result)) {
          result = new Cesium.Cartesian2();
      }
      if (isRepeating) {
          result.x = 8;
          result.y = 8;
      } else {
          result.x = 1;
          result.y = 1;
      }
      return result;
  }, false);
  
  // Like Image, the video element doesn't have to be part of the DOM or
  // otherwise on the screen to be used as a texture.
  Sandcastle.addToggleButton('Video Overlay', false, function(checked) {
      if (checked){
          videoElement.style.display = '';
      } else {
          videoElement.style.display = 'none';
      }
  });
  
  // Older browsers do not support WebGL video textures,
  // put up a friendly error message indicating such.
  viewer.scene.renderError.addEventListener(function() {
      if(!videoElement.paused){
          videoElement.pause();
      }
      viewer.cesiumWidget.showErrorPanel('This browser does not support cross-origin WebGL video textures.', '', '');
  });
  
  