Enjoy my and my brother's modified QeffectsGL. All thanks go to made by XaeroX, the maker of QeffectsGL.
Copy the files from the archive (QeffectsGL_readme.txt, opengl32.dll and QeffectsGL.ini) in the Quake2 directory, where your quake2.exe is. After you run Dawn of Darkness, a log file will appear (QeffectsGL.log). You can read it to see if you have any errors. To uninstall, just delete the three files.
I modified how textures and how the effects look, by tweaking
QeffectsGL. For example, the fire, the lights, brightness, color correction are more appropriate to reality. Also, the fire is affected by the light in the game. But
of course you could tweak the effects, making it look better or worse.
As it states on QeffectsGL site :
1. Do not replace the library in "WINDOWS/System32" !
2. Some anti-cheating software (e.g. VAC) may refer the library to as a
cheat. Do not use anti-cheating software when playing with QeffectsGL!
Click "read more+" to see two comparing videos.
The preview of the second video on youtube is all messed up. I'l try to work on it.
Fixed.
For a better experience (it also depends on your video card), leave the in game brightness slider to half in the menu.
Choppy video, because i was using a old pc.