Hey there!
I've sort of come across a small problem with a Steam Half-Life map that I am tinkering with using Hammer 3.4. I have constructed a corridor out of solid brushes in which I have placed two, weak lights (both are standards at 188 137 44 75). The thing is though that they have started displaying improperly recently for some reason. The guys in #twhl suggested that I should upgrade to ZHLT, but that only transformed the phenomenon into something equally buggy (which is shown below).
With Q - http://www.drule.net/junk/weirdlighting.jpg
Small spotlights appears all around the floor right by the walls.
With ZHLT - http://www.drule.net/junk/brightness.jpg
The lighting is completely split in half, despite the fact that the lights are placed in the middle.
Also, nevermind the lighting differences in the images. I had to mess around with the brightness to make the lighting errors show up more clearly.
Anyway. What did I do before the bug occurred? Well, the only things I can think of is that I had added a bit to the area around the left-side corner and also picked 'Save visible objects only' (though it now messes up regardless of that setting which probably isn't related to the problem anyway).
Do any of you recognize this problem? Becuase I sure can't think of a solution. Any help is appreciated. Thanks!
EDIT:
For some reason my post is completely screwed up. I have no idea why that is, but uh, try to ignore it I guess!