We have finally made a shader for Superfighters Deluxe that will allow us to render everything in gray-scale! For Superfighters we wanted the menu gameplay to be rendered in a gray-scale but each time the garbage collector run it wiped out the gray-scale effect for a short time for some reason which we couldn't solve. So we just added some blending instead that changed color over time.

But now we have a shader for Superfighters Deluxe that will do the gray-scale job for us (and slightly more) for shader 1.x!

The hardest part with shader 1.x is the limited amount of instructions and registers to use. The good side is that it's supported by a wide range of hardware so even my old IBM T60 laptop can run it.