I had troubles with my Doom 3 game being f*cked up a little: one of the issues was that the resolution has been reset to 640×480 pixels, and I could only change it back to 1024×768 pixels max.

However, I was able to fix it and playing in pretty widescreen again.

Here is what you need to do for your custom screen settings in Doom 3

The following 4 parameters from within your DoomConfig.cfg-file are important:

  • r_customHeight
  • r_customWidth
  • r_aspectRatio
  • r_mode

Here is an example from my own config, set to 16:9 widescreen with 1280×800 pixel:

seta r_customHeight "800"
seta r_customWidth "1280"
seta r_mode "-1"
seta r_aspectRatio "1"

The value r_aspectRatio can be set to…

  • "0" for 4:3
  • "1" for 16:9
  • "2" for 16:10

"r_mode" set to "-1" tells the game to use the values for r_customHeight and r_customWidth.

References used

Doom 3 Resurrection – widescreen support?
Doom 3 Tweak Guide (Wayback Machine snapshot 25/02/2010) 

Time to play!

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