Anyone finding that it is too bright, type this into the console, or add to a custom CFG
set r_lightscale "1"
Then, set the next value to 1.0
set r_overbright "1.0"
This puts it back to Doom 3 lighting...or, at least mimmicks it.
Also, add this line:
Seta image_usenormalcompression "0"
This will help lean towards Ultra Quality more, since the only difference between Ultra mode and High quality mode, is compression and Doom 3 BFG runs in High Quality mode by default, with no option for otherwise...unless, you dive into the CFG.
Also, make sure the below is set to "0" and anything else having to do with compression
seta image_usecompression "0"
Have not experimented with the below, old Doom 3 tweaks.
seta image_compressBump "0"
seta image_compressDiffuse "0"
seta image_compressSpecular "0"
seta image_useCache "1"
seta image_cacheMegs "4096" //set to a quarter of our RAM
seta image_cacheMinK "524288" //use this formula: "image_cacheMegs" / 8 = n , n * 1024 = "image_cacheMinK"
com_videoRam "2048"
seta image_filter "GL_LINEAR_MIPMAP_NEAREST" (this suppose to be better in DOOM 3 original. Default is LINEAR, rather than NEAREST. From what I remember from the old TweakGuides website, this is suppose to utilize Anistropy in a specific way, resulting in slightly sharper textures).
Feel free to toss in some ideas. I'm not sure if I should be leaning more towards Rage tweaks, or old Doom 3. It seems to utilize a mixture of both.