That is nicely done! Had never seen that thanks for sharing. I am not afraid to admit I will struggle a lot during this project so seeing another's work will help a lot. Looked into that more and some tips were provided in terms of how gen. was done and what not.
--------
Though it does lack one thing heightmaps! Gotta have that bumpy texture. As well as spec and diffuse, so if I wanted I could make it so when it rains the blocks look wet, now in terms of fps that is a terrible idea but hey lol.