Hey,
I’m creating a map and spotted a few problems. They are as followed:
- Lights (from skyshader) are leaking trough the ceiling and walls.
- Shadows on places where it shouldn’t be. Between 2 brushes in this case:
Now, I’d like to know how to fix this problem to get the best quality for my map. 
I thank all of you in advance.
Greetz {Just-Me}