Check out the showreel for RayFire, a plugin for 3ds Max.
Max Cookie - Rayfire Introduction Tutorial
Max Cookie has released an introduction tutorial to the Rayfire plug-in for 3ds Max.
PolyFX v2.0 is a script for 3ds Max that allows for a multitude of procedural geometric animations.
Terrain for 3ds Max
You can generate landscapes from real world elevation data with the Terrain plugin for 3ds Max.