Haha hello, I know you will thank me too ...: D Well, I am not yet satisfied but for beginners is already a beginning,,, install the plugin in scketshup SCKETSHUPUV With him on the program's work area, u need texturing sound just a material dragging and changing the size of the texture. Never use other stuff out of it, then select the template, go on the first of scketuv plugin button and give triangulate. Save in Collada ... Vc will see only a material in the ... Put your Collada and their stuff on the cities folder ... Well ... Remember that you can not try this with groups. It has to be all broken up. And in Collada settings just KEEP TEXTURES AND TRIANGULAR, rank should be cleared.
The model 20,20x20,20 M is a cell of the fully occupied cities.
Follow my model with SCKETSHUP.
http://steamcommunity.com/sharedfiles/filedetails/?id=410064406
well, of mine has been right. coming soon i make a tutorial.