CGI technology that isn't impossible to use...

Bryce 3d is a old CGI program that still has some of the best terrain algorithms today.

Free to use and with a community that likes CGI in all the same way -- To make a creative digital setting. Rather if you want to create a picture to fool the human eye, create a CGI short film, or just learn how computers generate graphics using wire frames. Bryce is by far one of the most easiest to use and fun applications.