1) I've made a swimming pool for my map. Obviously I first createad a brush having selected caulk_nonsolid as the texture and then applied water bespin/water2 to the upper side and the bottom of the brush. I'm positive the water brush is correctly aligned in the pool but there appears to be some z-fighting either on top or at the bottom of the water. What in the world could this be caused by?
2) What fog do you suggest I use if I for example want to cover the bottom of a tall building so I couldn't see the edge?
1) a screenshot could help a lot
2) you can place a fog brush at the bottom of the level. Use a black one if it's evening, or a grey (light or dark) if it's daytime. This is only my opinion.