The Hunted

I am also looking at doing a very similar project. Let me know how it goes. I projected on frosted glass a while back but can't remember how the video turned out, have an email out to the guy I worked on the project with. I'll let you know if i find out anything. I would just grab the pico though and go to a window or glass store and see how it works on single sided frosted. The pico might not be bright enough for your application. Cheers!