Chroma: That oval test is out of date and it may be working at a refresh rate not in sync with your screen so HrzNutz's code will look smoother. This is much more up to date, get any jitters? http://www.greyaliengames.com/misc/jitter.zip
HrdNutz is right, the original code or the example above do not have jitter correction. But tweening is a good method, I'm just not into it at the moment. I think lots of 3D games do it.
I may try running my next game at 30FPS refresh and 60FPS logic as that will smooth out jitters a lot just by the low-res updates. Not all PCs can cope with ultra smooth timing unfortunately.
HrdNutz is right, the original code or the example above do not have jitter correction. But tweening is a good method, I'm just not into it at the moment. I think lots of 3D games do it.
I may try running my next game at 30FPS refresh and 60FPS logic as that will smooth out jitters a lot just by the low-res updates. Not all PCs can cope with ultra smooth timing unfortunately.