I think if you generated a nice moundlike terrain in Bryce and exported it as a DXF. You could then import it into InfiniD4.5 or some other app with a modeler with magnetic pull, and "pull and twist" it into a more wavelike shape. Then you'd have to import it back into Bryce, texture and render it. Come to think of it, you could probably export to Poser as an OBJ file, use a magnet to shape it and export it back to Bryce as an OBJ. Either way, you need to pull and twist a terrain file to get that surf effect. I have seen it done in Bryce so I know it is possible. Try experimenting until you get something that looks right. There is also a freeware program called Wavesworld, do a web search and you'll find it. It creates wave trough bump maps that you can then import into the terrain editor in Bryce. They are very symetrical though.