no shader, other walls aroudn are fine, its just walls at a specific angle.. also if i turn around and walk backwards. its black and ok.
Ill look what to lightmap/bump and if i need to when its all set up
Oh and what the patternsize actually do?
Also there are some ground etc on top layer.. and i can see the edges being "brighter", also the ground itself flickers lighter/darker.
Only light i have is dynamic, range 0 (for the flashligth script).
I did use some lights - to illuminate the small room, but went for no lights + flashlight (out of memory and fits the theme better).
I just wish there were a "entity browser" - to show all the added entities.
(the main lvl is large area, that small dark room is 2 lvls under it through a "pipe")
(on screens i set ambient up a little to see the rest of te area and took 2 shots of the sample spot at different angle when the problem dissappeared)
some screens:

Oops, one of the images is a little messed up...

test game doesent like alt-tab.
Screens from dark look bad :/ the outside 2 images are hard to notice, but ground gets lit up kinda when facing at on direction (is brighter).
First 2 basically are same corner, one where floor and wall are lit then when theyr not. Last one shows part of the wall dar kas it should (the one in the pic above i posted).