Wikipedia
VistaPro
Vista and Vista Pro are 3D landscape generation programs originally for the Amiga, Apple Macintosh and Microsoft Windows (PC) range of home computers. It was written by John Hinkley and its own About box describes it as "a 3-D landscape generator and projector capable of accurately displaying real-world and fractal landscapes."
It was published by Virtual Reality Labs and developed by Hypercube Engineering. The latest versions were published an developed by Monkey Byte Development.