Thanks everybody. I think I will take the advice and get the book. I think there are some great meshes made in obp. format, and could use them in BCAD and RHINO. But I understand now that Bryce doesn't export the obp. format. The one thing good about getting Bryce4 is the fact I got to know some of you through your help, and I am very appreciative for the help you have given me. Thanks again. Dutchman.