dat.gui/src/dat/utils/requestAnimationFrame.js

/**
 * dat-gui JavaScript Controller Library
 * http://code.google.com/p/dat-gui
 *
 * Copyright 2011 Data Arts Team, Google Creative Lab
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 */

define([
], function() {

  /**
   * requirejs version of Paul Irish's RequestAnimationFrame
   * http://paulirish.com/2011/requestanimationframe-for-smart-animating/
   */

  return window.requestAnimationFrame ||
      window.webkitRequestAnimationFrame ||
      window.mozRequestAnimationFrame ||
      window.oRequestAnimationFrame ||
      window.msRequestAnimationFrame ||
      function(callback, element) {

        window.setTimeout(callback, 1000 / 60);

      };
});