I already have a lot of 3ds files with textures for building.
I'd like generate CityGML LOD3 data from these 3ds files.
For LOD3 data generating, I think the first and the biggest problem is how to classify Window, Door and Wall.
I think it is possible to crop or edit the window or door in 3D MAX.
But I don't know how to assign the properties such as Window, Door and Wall.
If you have any idea or experience, please share your experience.