Hi Hurricane - I replied to the bottom of this but probably should have replied to this post in order to get your attention. I’m very keen to get this kind of projection working in my build - hopefully using a volume (flattened to 2d) to define the corners of the projected screen. I tried to compile your source from the zip you posted but - being a bit of a newb - had problems getting it to compile - maybe because i’m using 4.7? Is this something you’d be interested in helping out with (for some financial reimbursement perhaps?). Dan.