How do I make the edges of a square a bit rounder? I can't find anything on this on the internet and I don't know anything from 3d studio max, so Can I do this in Bryce? Please tell me How ...

The only way I can think of to round off the edges on a Bryce primitive cube would be by a boolean operation. Or maybe using the terrain editor with a symetrical matrix and create the cube using a greyscale map then rounding the edges. If you have 3DS Max it's fairly easy to do then import it into Bryce. You can ask on the 3DS forum exactly how.

check imported objects (preaets) there's a round-edge cube

you can also use cylinders for the edges, 2d faces for the sizes, and positive/intersecting cylinders for the corners, but that can get really tedious because you have to start over if you want to make the corners rounder or sharper

Thanxz alot, I'll think I'll have to learn a bit of 3d studio max then 'cause doing it in bryce does not seem to be the best way :-) ..