Has anyone attempted creating a black and white filter for the game engine?
I am working on security camera overlays. A scene overlay with the green scanlines works really nicely but I would also like to do the nice black and white version.
The only thing I can think of is a black + transparent texture which is animated to create a ‘static’ effect but obviously the colours from the base scene are showing through.
The problem is that the only useable texture type is ‘additive’ and I think a subtract filer would be needed.
Perhaps python can strip colour information? Any thoughts would be appreciated.