Fog + dynamic lights = ugly :(

[Nash]

Dynamic lights in GZDoom look great, but as soon as fog is introduced into the picture, all of a sudden, dynamic lights look ugly. It's like suddenly the lights are forced to become additive lights. The vibrant contrast will look muddy and washed out.

Is this a bug or are there any technical reasons why this happens? If it's a bug, I'll report and hope it gets fixed one day.

[Graf Zahl]

Fog can't be properly composited with the way lights are rendered so it has to be done additive in order to work at all.

[Nash]

I see. So it's a technical limitation then.

[Graf Zahl]

Yes.