Solved problem with height projection on roads. Now it projects correctly.
Added fixed water level and bridge level. Future work: bridges could be detected more smartly.
Added a couple of more heightmaps for fun.
Added camera Y axis movement.
Added random space partition.
Merge branch 'master' of github.com:chiguire/nttcitygenerator
Merged Dimitri's work. Fixed city vector space render by negating vertices' positions (sorry :-P ).