I'm trying to make a circular or oblong room with rounded ends, but am having problems at the moment. I'm creating a curved surface (endcap) and thinkening it, and putting it place of one of the walls in a box room. But this does not compile (leaked map) although I'm sure there are no gaps in the walls. Can anyone help? I'm very new to GtkRadiant - sorry. :rolleyes:

I think I've topsed it I'll just use the normal square brushes and bevel the corners of the room. :)

Well, to say it in a n00b-friendly way:

Curves, no matter how you make them, are not calculated as structural brushes, and just overlooked by the compiler, thus creating leaks. Put a caulk brush behind it and you should be ok.

Thanks very much that helps a lot. :)