I found this person that made a city with random building generation, cars, lighting, blocks, etc. Cool to watch.
-d2-PtK4F6Y
A site with some interesting usages and overviews of pg is: http://procworld.blogspot.fr/
EDIT: Oh and since people tend to think minecraft these days if voxel is mentioned, then the dude behind this blog…this is his product: http://voxelfarm.com/vfweb/index.html
@OP: Amazing!
As mentioned in the vide, quite useless. But amazing.
Totally awesome. I love how relatively “simple” tricks can get such amazing results. Really smart.