Unity content... in digital 3d

Hello, I teach a sequence of classes to children on how to make video games, concluding with a week spent on Unity. We have a Christie digital 3d projector set up in the theater where I teach this (and a desktop at each seat) and I want to be able to put the student's content in 3d on the projector. I seem to remember a proof of concept for something like this, somewhere, but can not find it now.

Can anyone help me on this?