Is it possible (or will it be possible) to use a snapshot as a mask? As I see it this would free us from having to save a mask that is created on the fly to the disk before its applied to the image. I can see the benefits of being able to actually draw onto a mask just as you can in photoshop. I dont belive this is possible at the moment without display.save and the reloading/resetting mask? Not sure if it would be at all possible with snapshots though but it would be nice
edit:
or can you use snapshots as a part of a composite texture?