First, Metacreations didn't create any of these programs. They "assembled" a product line and were primarilly a marketing/distributing company. That's why the programs don't really integrate very well with each other. Over the last couple years they tried to make them more compatible but lost interest. You Can create some really nice things from the terrains that may be exported under other file formats like 3DS, OBJ, DXF etc. You need to select the terrain object (or other model that was imported) and then click on the Edit Materials Tab, when the smoothing window pops-up then hit the "command(or)control and d" on the keyboard and you will be presnted with a pop-up for different file format export options. That being said, the program was never meant to be a modeling program. Its' strength has been focused on bringing objects into Bryce for rendering.