Lighting error - Help? Created 8 years ago2015-12-12 21:46:26 UTC by Dallas

I'm getting a weird lighting error in a HL1 map of mine, essentially I am seeing some light coming through a large portion of my level at about a -30 degree angle, as well as some light spots appearing. The angle does not match my light environment.

Additionally, my texture based lighting seems to not be appearing, or working correctly.

This is on a final compile, full vis, extra rad and no errors in the compile process.

I am able to compile other maps fine without this problem, using the same texture set and the same light emitting textures and the same light environment settings.

Has anyone seen anything like this before?

What should I be looking into?

Ok, so this has something to do with the "opaque blocks light" setting on ZHLT flagged brushes.

I had this set on a few func_walls here and there.

Appears that some brushes do not like this setting. Stripping this off all my brushes that used it fixed the issue. also drastically reduced compile time to remove only this setting from a few select func_walls.

And, to be clear, none of the brushes in the screenshots had this, this was set on some crates and rocks across in other areas of my map.

are you using ZHLT or VHLT?

ZHLT