Thanks for your interest. Seems you found my talk already...
On
stellarium.org you find a few recent papers linked. The JSA paper contains a lot of references to other relevant papers.
The User Guide, chapter 15, contains most relevant information on how to bring your georeferenced OBJ into Stellarium. Usually, if it looks OK in MeshLab, it should work in Stellarium.
If static architecture is not enough, I have also developed a Unity module to use Stellarium's sky as background for a Unity-based simulation. See our github repo.
I am also available for (funded) collaboration... ;-) -- pm me!
Kind regards,
Georg