CompuServe Messages

Any suggestions on putting together a cost estimate for creating a fairly simple fly-through of a building? This would be at an initial proposal stage — roughed out building and equipment with a simplified site plan. (We're an architecture firm.) We've never done a walk-through before, and would be buying 3DS for this project. How much time does it take to get started, learn the software, etc? Do people recommend doing fly-throughs on a computer system or dumping the images out to tape, and if the latter, how much does that cost? Sorry for the stupid questions, but we have to start somewhere. Thanks.