Very good suggestion, Rob!
A quick google revealed this:
As far as Fog Table Emulation, again it depends on how potent your computer is. Here is a good definition of what Fog Table does:
Fog table emulation (Volumetric fog): This setting allows the video card to render fog, smoke and mists in individual polygons, instead of flat textures.
· Image Quality: Fog table emulation will definitely improve your image quality, by making fog, smoke and mists appear in 3D.
· Performance: Fog table emulation can decrease your performance substantially, depending on the amount of fog, smoke and mists being rendered in the same scene at the same time.
Also,
this page at Nvidia seems to have some good advice about what all those settings really do. From the looks of it, one of those settings might also fix the problem I talked about in another thread, the one where certain distant polygons seemed to get z-sorted wrong.
I'll mess with it tonight. Thanks!