> I just tried this shader with the Tint shader also applied, and the framerate dropped very low. Is your shader intended to work with other shaders?
I have tested tint + opacity... you must have 60 fps without framerate loss...
Have you a .capx file to make test for me ?
Just add the tint shader to the star sprite in your demo .capx - it slows down even more than the version without using your opacity shader. This is on a GTX 980 (newest drivers), Windows 10, in Chrome. It's topping out at 15fps. If the tint shader is put on the same layer as the star sprite, it works fine - but I'm hoping there's a way to get it functioning with the tint shader on a sprite that also uses your opacity shader.