Anybody know what software would be best for creating virtual landscapes, where I can create roads on bump-mapped terrain and place buildings imported from Google Sketchup? I'm trying to re-create the town which I live in the 1950s, virtually. I've got all the building and vehicle models I need, as well as mapping and topographic information. I just need a program that I can build it in. Sketchup doesn't seem very good for landscapes. Crysis's Sandbox Editor is okay, but is really catered for gaming, and isn't compatible with much.