Frank Willeke who is the mastermind behind all the content at www.c4d-jack.de has created Surface Spread, a great environment generation plug in, and it is now supported by Renderfeed. Our friends over at 3devotion.com turned us onto this great plug in. You can see some examples of how 3devotion used it in there teaser video seen HERE. Some of the features of Surface Spread includes are creating landscape scenes, distributing objects according to geological rules, generating parametric landscapes / terrains, generating parametric rocks and stones. With purchase of the plug in you get a shader for infinite color variation and a nice plant library.