title: Scenekit Convert scene in obj file
body: <p>I am working with SceneKit for an iOS project. I want to export the current Scene into a OBJ file. </p>
  
  <ul>
  <li>Is it possible in Objective-C to create OBJ file with the SCNScene ? </li>
  <li>Is it possible to import OBJ file with Scenekit ? </li>
  </ul>