In reply to Juego.

I'm glad you liked it. I added a limited support for English version (for the most part of gui). It is enabled automatically if your browser has set language set to English.
The webportal is a city GIS portal (there is also a 2D module there) for residents and tourists.
The main advantage I guess is that it is not closed (as eg. CityEngine webGL scenes), but it dynamicly gets substantial part of its data from spatial data (GIS) servers. So when you e.g. add (using some gis software) a tree (geometry and appropriate attributes) to a 'vegetation' table in your database that is served by gis server and configured in our application, you will instantly have the tree added to your portal as a symbolized 3D model.