Hey I remembered that when using an old 3dfx card, and adjusting the brightness setting, it would apply instantly and the colors would get brighter and not washed out (true hw gamma), however the regular gl drivers you have to apply the setting and higher settings means washed out colors. I also checked out the source of some quake2 client (maybe the old ioquake2 thing) and remember seeing that there actually was some hw stuff in the 3dfx driver. Could you implement this? hwgamma is _much_ prettier, and I remember always loving the look of the 3dfx cards over the new geforces when those came out. I'm sure now, that was because of the hwgamma the 3dfx driver used
Would be fantastic if you could do this.