Hello. When I try to put some white textures on my blocks, they give light to my level and I do not that. All the lights I want are from entities like "prop_light" as example, but I don't want any texture to bright even more my level.
I was wondering is there is some white textures that dosen't give any more light ?
It seems I can't find any

That's how physic works. Try it in real life: Take a white and a black (or grey or red or whatever) room and put one same light into each of them. The white one will seem brighter because the white walls "reflect" the light better than the non-white ones. Just take some brightness off your prop_light to get your room to seem darker.

Djinn is right here, it's the way the world works.

Of course, game-wise, you could just scale the white wall texture to be very large so the light doesn't show...

Also, may I suggest you use some realistic light sources in your map? It really helps in making your map look good if you do. Use some glass lights in the wall (with white texures mostly) or my personal favorite: observation labs!

FourthReaper wrote:
Also, may I suggest you use some realistic light sources in your map? It really helps in making your map look good if you do. Use some glass lights in the wall (with white texures mostly) or my personal favorite: observation labs!

The levels I make for Portal 2 are Portal 1 style. The goal is for the player to feel like "wait, did I run portal 1 or Portal 2". The true feel is for the player to feel like on Portal 1 test chambers style and most of my light sources are from "light holes" wich were really typical from portal 1.
I also use observations rooms, and my white textured blocks are the "covers" of these glasses (I understand myself). The problem is, even with a very dark ambiance, al textures are very dark, we see almost nothing, and the white covers are still...like...almost shinning front of your eyes due that they are "overlighted".
I don't really understand how to make it dark or...maybe you can suggest some else texture for these observations room classes covers ?

From what I understand, you're using light emitting white textures (https://developer.valvesoftware.com/wik ... g_Textures). It sounds like you are looking for white textures that don't emit light. Search for "plastic" or "concrete" or something in the texture browser or use the standard window frame models instead of textured brushes. If you have a specific look in mind you can decompile a map and see what textures are used there. I might have misunderstood the issue; pictures always help.

The second post is about how light reflects off of walls, which is not the same issue.

Normally white textures shouldn't glow. Please post a picture of the problem, that'd be nice.