Three steps to generate basic 3D cityscapes for Virtual Reality environments in an exclusively Open Source workflow
select area and
export area to OSM file.
Download and install OSM2World
open referring OSM file using OSM2World
and save OSM file as OBJ file.
Import OBJ file into a 3D application
of your choice (Blender, Cinema 4D,
3DS MAX, Maya, Rhinoceros, etc.).