Dear friends,
I see already first 3D models in Canada :
http://demo.f4map.com/#lat=45.4250880&lon=-75.6983251&zoom=17&camera.theta=60.756&camera.phi=173.438
according to:
http://wiki.openstreetmap.org/wiki/Simple_3D_Buildings
Try to do more!
New York: http://demo.f4map.com/#lat=40.7093437&lon=-74.0125466&zoom=16&camera.theta=60.47&camera.phi=-7.162
Warsaw: http://demo.f4map.com/#lat=52.2302051&lon=21.0044439&zoom=17&camera.theta=57.605&camera.phi=-1.432
Nuremberg: http://demo.f4map.com/#lat=49.4502815&lon=11.0789404&zoom=18&camera.theta=58.178&camera.phi=-52.712
How to get exactly colour values of building elements?
I use Gimp and pick colours from self made photos.
In Gimp (free software: http://www.gimp.org/downloads/ )
I use this:
https://wiki.openstreetmap.org/wiki/File:MarekGimpColourPick.jpg