public static void EnsureInstanceInitialized()
    {
        // find instance.
        InteractionSceneSetup leap = GameObject.FindObjectOfType <InteractionSceneSetup>() as InteractionSceneSetup;

        leap.EnsureInitialized();
    }
 void Start()
 {
     InteractionSceneSetup.EnsureInstanceInitialized();
     AddRemoveBodyUtil.Instance.AddBodyToLeapFromUnity(rigidbody);
     m_started = true;
 }