title: Three.js How to DragControl Object3D?
body: <p>When I load jSON Object to the scene using ObjectLoader, I can't assign DragControls to them. But a mesh is added to the Loader, I can assign  dragcontrollers.</p>
  
  <p>I used this source code for my projects 
  <a href="https://github.com/mrdoob/three.js/blob/master/examples/webgl_geometry_spline_editor.html" rel="nofollow">https://github.com/mrdoob/three.js/blob/master/examples/webgl_geometry_spline_editor.html</a></p>
  
  <pre><code>var loader = new THREE.ObjectLoader();
  loader.load( model_url , function ( object ) {
      splineHelperObjects.push( object );
      splinePointsLength++;
      scene.add( object );
  });
  </code></pre>