text: import BaseLoader from './BaseLoader';
  
  /**
   * 3DSLoader
   * @author tengge / https://github.com/tengge1
   */
  function _3DSLoader() {
      BaseLoader.call(this);
  }
  
  _3DSLoader.prototype = Object.create(BaseLoader.prototype);
  _3DSLoader.prototype.constructor = _3DSLoader;
  
  _3DSLoader.prototype.load = function (url) {
      return new Promise(resolve => {
          this.require('TDSLoader').then(() => {
              var loader = new THREE.TDSLoader();
              loader.load(url, group => {
                  resolve(group);
              }, undefined, () => {
                  resolve(null);
              });
          });
      });
  };
  
  export default _3DSLoader;