/// <summary>
 /// This is called each time new depth data is available.
 ///
 /// On the Tango tablet, the depth callback occurs at 5 Hz.
 /// </summary>
 /// <param name="tangoDepth">Tango depth.</param>
 public void OnTangoDepthAvailable(TangoUnityDepth tangoDepth)
 {
     // Don't handle depth here because the PointCloud may not have been updated yet.  Just
     // tell the coroutine it can continue.
     m_findPlaneWaitingForDepth = false;
 }