DOOM3: Image Quality and important Tweaks!

[oozish]

Holy crap, doom3 wasn't seeing my card as a 256MB card! I changed this setting and the peformance has really improved, plus my graphics and stuff are waay better than the first time I played through. Here's the settings I put in my autoexec file, try it! The game looks so much better than before! I can't help but think the video error reading my card as a 64meg card was a big problem, i bet alot of people are expereienceing this and don't know it (lol on spelling).

Check out this awesome Tweak Guide:

Vipers Lair DOOM3 Tweak Guide

Here's what my autoexec has in it now:

seta r_useDepthBoundsTest "1"

set com_allowConsole "1" //tilde key only for console *

seta image_roundDown 0
seta image_lodbias 0
seta image_cacheMegs 256
seta image_useCache 1
seta image_cacheMinK 32768 //This is the magic number.
seta r_displayrefesh 85

seta r_gamma 1.3

set image_downSizeBumpLimit "1024" //1024 for 256mb gfx. 512 for 128mb gfx. 256 for 64mb gfx

set image_downSizeBump "1" //enables above
set image_downSizeLimit "1024" //1024 for 256 cards. 512 for 128mb gfx. 256 for 64mb gfx

set image_downSize "1" //use to enable above

seta com_VideoRam "256"


That last line I had to change and was set at 64 in game!

 

[oozish]

oh wow, i just did a timedemo and before I wasn't comfortable with the slowdown at 1600x1200 2xaa, my benchies came in thehigh 50's...I just did benchies and got 75.5fps my second run through, 62.5 my first run at those same settings!

Secondly, bumped up aa to 4x and got 66.2 right away after a vid restart. Wow! I love tweaks, but this is simply awesome!
__________________

 

[Milenko]

seta com_VideoRam "256"

I don't even have this in my config file.

 

[oozish]

I don't even have this in my config file.

i didn't either, but if you type it in at console it will show you what it's set at. You can still change it and it is a valid (very valid) command.

 

[blindrocket]

What exactly do these do?

seta image_roundDown 0
seta image_lodbias 0

 

[Alex A.]

seta image_lodbias 0 may mean that when you see textures there is no bias in level of detail and its a balanced Level. If you put it to 1 then maybe the level of detail is either high or low and there is no balance.

 

[Rehevkor]

I tried these tweaks and actually lost 1fps. I'd like to know what all this crap actually does before I'll believe that they can improve performance

 

[RagingGecko]

Some of it improves quality, not performance.