In one level I want to go from a rectangular based room to a large cylinder room. I want it to be similar to the design in the ctf_bespin. However, when I create the cylinder, I invert the matrix for the inside graphics, but I am unable to enter the room. How would I pull this off? Thank you!

Bump...already lost at the bottom.:o

I'm not an expert on curves, but I believe that CSG operations don't work on them, ie. you can't cut a doorway in your cylindrical room. However, I assume it's possible to make a simple patch mesh and bend it into a near-complete cylinder, leaving a gap for your doorway. I'm not sure how difficult this would be as I've never tried it. Anyway, I hope that helps.