Quake2 3DNow with ATi Rage Pro / XL and how to get small performance boost with your 3Dnow! CPU and ATi card.

1.I use ATi Rage driver that has 3Dnow support (i think any DX6.0 driver or newer ones)
2.Extract the AMD Quake 2 3DNow! patch to your Quake 2.
3.Start Quake 2. Under the video options menu, choose 3DNow! OpenGL as your rendering device (not OpenGL or 3Dnow! 3dfxGL).
4. very early ATi MiniGL/OpenGL maybe do not support 3Dnow! with OpenGL, i have not tested all Rage3 OpenGLs for this, just some.

Also you can install ATi Rage Pro Tweaker and disable/enable Allow Bi-linear Filtering @OpenGL easly and many more settings there.

Copy modified Autoexec.cfg to Quake2\BASEQ2