I found this neet terrain generator from the company World Machine. There is a free version where you can create world terrains and save the result in an graphic image. I haven't gone through it all. I don't think it enables saving the file into 3d coordinates but I could be wrong. If not, it is a good inspiration point for creating 3d worlds. <a http="http://www.world-machine.com/gallery.html">http://www.world-machine.com/gallery.html</a> | 
