title: How use vertical detection in ARKit?
body: <p>How can I insert a SCNScene with a vertical hold on ARKit? I can not do the detention and insert the object in a vertical position. </p>
  
  <pre><code>override func viewDidLoad() {
      super.viewDidLoad()
  
      // Set the view's delegate
      sceneView?.delegate = self
  
      // Show statistics such as fps and timing information
      sceneView?.showsStatistics = true
  
      // Create a new scene
      let scene = SCNScene(named: "art.scnassets/tabellone.scn")
  
      sceneView?.debugOptions = [SCNDebugOptions.showFeaturePoints]
  
      // Set the scene to the view
      sceneView?.scene = scene!
  }
  
  override func viewWillAppear(_ animated: Bool) {
      super.viewWillAppear(animated)
  
      // Create a session configuration
      let configuration = ARWorldTrackingConfiguration()
  
      configuration.planeDetection = .vertical
      configuration.isLightEstimationEnabled = true
  
      // Run the view's session
      sceneView?.session.run(configuration)
  }
  </code></pre>