/*----------------------------------------------------------------------
   * Scene rendering loop and mouse handler stuff
   *---------------------------------------------------------------------*/
  
  var scene = SceneJS.scene("theScene");
  
  var yaw = -30;
  var pitch = -30;
  var lastX;
  var lastY;
  var dragging = false;
  
  var texAngle = 0.0;
  var texScale = 1.0;
  
  /* For texture animation
   */
  var timeLast = (new Date()).getTime();