> > Are there any shaders that emulate a slot mask? All I can seem to find are scan > > lines. > > There are a variety of filters that simulate an aperture grill. Either with > alternating Magenta and Green vertical stripes to get an an evenly spaced RGB stripe > in only 2 pixels, or in a regular RGB pattern. > > The "CRT-geom" filter usually has Magenta/Green stripes in other emulators but hasn't > in MAME because to do it right the shader needed to know what resolution was being > output and MAME didn't give that to the shaders in GLSL (I think...) > > I hacked it back in when I saw that MAME could do it now, along with some other crap > (tint, saturation, fading out the aperture grill for high luminance colors to keep > brightness high, cubic instead of lanczos horizontal scaling) but I haven't posted it > anywhere because I didn't know if any if it was done quite correctly and I didn't > want to post shoddy modifications to someone else's code. I could zip it up and post > it here as long as people understand that it was done by someone with no graphics > coding experience...
Interesting. Yeah, I'm just getting into SDLMame and GLSL. So I don't know what the limitations are as far as what information is available to the shaders (a la resolutions).
If you have a hack/sample/anything you are willing to share, feel free to post it or PM me.