This was created and render using Blender. It's very impressive for a free program. There are links for how Andrew does this also.
http://youtu.be/vk5C66AFwvs
some very nice stuff. Perhaps I find some time to dig into his vids, I have already started to play a little bit with Blender.
I am having trouble adjusting to the new interface. But, I never adjusted to the old interface. I've been too busy with T2 anyway.