private MyRenderThread(MyGameTimer timer, bool separateThread)
        {
            m_timer          = timer;
            m_waiter         = new WaitForTargetFrameRate(timer, 120.0f);
            m_separateThread = separateThread;

            if (separateThread)
            {
                SystemThread = new Thread(new ParameterizedThreadStart(RenderThreadStart));
                //RenderThread.Priority = ThreadPriority.AboveNormal;
                SystemThread.IsBackground     = true; // Do not prevent app from terminating
                SystemThread.Name             = "Render thread";
                SystemThread.CurrentCulture   = CultureInfo.InvariantCulture;
                SystemThread.CurrentUICulture = CultureInfo.InvariantCulture;
            }
            else
            {
                SystemThread = Thread.CurrentThread;
            }
        }