Tomas: I doubt it will ever happen... Even 3d hardware accelerated stuff does not run completely smooth on a pc.
This is like blaming WinUAE if you can't get smooth framerates from your Amiga demos on a PC. If the Amiga runs at 60Hz and your PC runs at 75Hz, perfect sync isn't possible
I've seen plenty of Direct3D and OpenGL demos run perfectly smooth on the PC. The problem is that very, very few people these days are interested in applying throttling and vsync, especially in games. Usually, they just run their engines as blazing fast as possible. That's good for benchmarking, and thus bragging rights about your FPS numbers, but the end result is that things look terribly ugly.
Most of the time, framerates are either TOO FAST, so updates are out of sync with the monitor refresh rate, or vsync is not used, so screens are updated at the wrong time, causing tears.
Unfortuanately, even game console companies are starting to do this now that HD resolutions are becoming the next big thing. It's strictly a developer issue, and has nothing to do with the hardware.
Note that the Amiga used TV refresh standards, so things were either 50Hz or 60Hz. PC refresh rates can be pretty much anything. Also note that many Amiga games ran either too slow in PAL or too fast in NTSC. Thankfully, PC developers at least understand the concept of time-based events, so game speed doesn't go out of control if a monitor works at, say, 72Hz instead of 75Hz.
