MESA (Gallium) works in AROS 68k. It is still not usable but at least it shows that it is possible. It needs at least 256 MB Chipram, is slower than Stormmesa and it is not showing correctly (colours, effects)
The included MESA demos (Demos/Demos/Mesa) are not working correctly so use newer ones from contributions (alternative you can download them from this site here).
To start MESA open cli and type this in:
that is all, then start the demos