Radial fog on Radeon?

IIRC Radeon supports radial fog. Is this supported under OpenGL?

(I tried turning on radial fog in GLQuake using NV_fog_distance on my TNT2, it made a dramatic difference in quality).

yes download the ati opengl sdk theres an example that uses it

Zed, thanks for replying.
I only found one example with fog, using EXT_fog_coord, is that what you meant?

While that works, it would be simpler to have something like NV_fog_distance or corresponding, where you can just turn radial fog on without any extra work for the app.

hmm i looked in the sdk + the demo was for d3d. though there must be some extension for gl that
does the same thing. i know with nvidia cards u can use nv_fog_distance