Originally posted by: wizboy11
Trust me, you'll see the difference. It might get a little brighter. HDR was introduced with 1.3 patch AFAIK.
Change the shortcut to just the "-DEVMODE" and then while ingame use tilda key and try \r_hdrrendering 7 (note the direction of the \). You can use any number between 1 and 11 but I think a lot of people say that 7 looks best?
Finally, to enable HDR, use the following console command:
To enable HDR: \r_hdrrendering 1
The value shown here can be anything between 1 and 11, each selection will use slightly different settings for HDR rendering. The general consensus is that using a setting of '7' gives the best results, but everyone will no doubt have their own preference.