help with func detail!

[Big Nick Digger]

I have tried everything but these won't light correctly! They are func_detail arches and are driving me crazy. I tried smoothing groups but no luck.

http://i17.tinypic.com/6q428mr.jpg

lemme know if you have any ideas, I really don't want to ditch them. I also don't want to cut them up in to a bunch of smaller brushes because I fear going over my brush limit.

[Immortal-D]

Maybe I'm missing something, but I don't see the problem.

[Snipergen]

if its about the textures that dont blend together.... i think you cant do much. Each face has its normal and rederects light and you will get this. If smoothing groups dont work.. i dont know sorry!

[Intraman]

I don't think it's much of a problem. Sure the shadows look a little odd, but I don't think it's to noticable.

[Big Nick Digger]

Problem solved.

[Ziggurat]

Mind explaining what was causing the problem and what fixed it?

[Big Nick Digger]

the arches that are lit incorrectly in the picture are a result of the walls extending behind the arches. I simply cut the walls at the edge of each arch and the problem fixed itself.

Here is how scratch explained it:
Lighting is being applied per-polygon, and if two polygons don't have abutting edges (which is the case in your screenshot where the polygon of the arch hits the polygon of the wall in the middle) the lighting transition can't be fluent.