Export object stack FROM unity with textures

I am working with a building that is a stack of several different objects (i.e. roof, doors, etc.). I need to export the entire stack from unity to an .obj file WITH textures. The wiki page on exporting does not cover exporting an object with textures.

I’ve been trying to do this for a while now, and I simply have no idea how to go about it. Google has turned up nothing. There’s no export object function, etc.

Textuers are separate from geometry in my experience. You have to reapply them in whatever you’re importing the obj into.