PSOBB: Pixel, Vertex or emulation fog?

[Neith]

I played CCA for a little while today, and even after turning the graphics down lower, it still lags in the water plant part of CCA. I think it has something to do with the fog, since when it briefly subsides, the lag disappears. On opening BB, i noticed the 3 types of fog (Pixel, vertex and emulation). Which of these would make CCA run the smoothest, if there's any difference at all? Cheers!

[Ryna]

What do you currently have the fog set to? Without knowing anything about the algorithms Sonic Team uses to emulate fog, I would have to say that "pixel-based" is probably the least CPU-intensive.

[Neith]

Currently set up as follows:
GFX card- ATI Radeon X300 (128MB)
Frame Skip:0
High-Res textures
Shadow Detail: Medium
Enemy Detail: Low
Map Detail :low
Clip Distance :50%
Fog: Pixel Fog

I guess it could be the high-res (I'm assuming its high res, since low-res textures isn't ticked)

[drizzle]

That fog effect you can select in the launcher is for the dark room effect, poison fog, things like that, not the CCA fog.

[Neith]

Oh, any way at all to reduce lag in CCA then?