internal void OnRenderVectors(Camera camera, float scale, AmplifyMotion.Quality quality)
 {
     AmplifyMotion.MotionState state = null;
     if (m_states.TryGetValue(Camera.current, out state))
     {
         if (!state.Error)
         {
             state.RenderVectors(camera, scale, quality);
         }
     }
 }