A cereal box face is still two triangles (or a quad). It's simple geometry, but still geometry. If you can do two triangles, you could do 12. If you kept it

A cereal box face is still two triangles (or a quad). It's simple geometry, but still geometry. If you can do two triangles, you could do 12. If you kept it simple, you could get away with image planes and occlusion masks, I guess. I'm guessing this would dovetail nicely with up-converting 2-D movies to work with VR rigs. If you can reconstruct a scene well enough to fake some depth, it wouldn't be difficult to insert extra models into it. The dystopic endgame would be to automatically generate the models from the 2-D video and randomly fill some of the volumes that don't interfere with the existing scene with advertising models.