[This tutorial shows how you can install and configure Beryl on an Ubuntu 7.04 (Feisty Fawn) desktop with an ATI Radeon graphic card. With Beryl, you can make your desktop use beautiful 3D effects. We will use the open-source ATI driver that comes with Ubuntu plus AIGLX to achieve this; the other way to do this would be to use the closed-source ATI driver together with XGL which seems to be a bit unstable.]
NVidia & other propietary 3D graphics setup is very similar.
NOT INTENDED FOR LOW-END SPECKS (like the PS3 until OpenGL driver are released)