Do you know of a way to do the opposite? I mean to use the opaque parts of a sprite in order to display the Sprites below. But with out the need of a huge sprite that is mostly empty.
Thanks eliOs!
..I think this is not possible...
for masking a small part of you need a small sprite..for masking whole screen you need huge sprite...
..in some situations, can be used Source atop to show Sprite above ...I believe that you know that..
I saw your Lens flare example..great job!
Edit: ..example..just for fun