I would like to ask:
1. If the exact methods "OnUpdateFrame" and "OnRenderFrame" are delta-timing safe. In other words, shall I pass exact values for rotation/translation or use delta time value instead?
speedX += 2.0f;
speedX += 2.0f / delta;
2. As far as I seen in the source code, there's a very good and standard timing mechanism (in "Run()" method), but I am a bit worried about it's efficiency. How this method behaves? I know that the best solution is to use frame tweening, is this same as OpenTK's?
P.S. I am a bit noob in these advanced stuff, but I never say no in learning them. ;-)