Video projection on glass?
I was doing some resources on how to achieve a rear projection on transparent surfaces like glass, but without of much success (there are projects on this site, but all are using a black projection material).
I would like to do it on a shop window using a projector. I have found out that I need some special foil to get this working, but most of them are black and not transparen and there are a lots of brands.
I am wondering if there would be a DIY solution, maybe a frosted white sticker cut to the size would work, to still keep a level of transparency on of the window.
Suggestions are welcomed!