private void OnInternalUpdate(object sender, OpenTK.FrameEventArgs e)
{
UpdateFrameEventArgs args = new UpdateFrameEventArgs(e.Time * 1000D);
Time = args.Time;
OnUpdateFrame(this, args);
UpdateFrame?.Invoke(this, args);
}
/// <summary>
/// Called when it is time to update the frame.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected virtual void OnUpdateFrame(object sender, UpdateFrameEventArgs e)
{
}
