How would I get two separate cores (Genesis Plus GX for Genesis, and bsnes-mercury-accuracy for SNES) that I use the same shader (crt-guest-sm) on , have their respective graphics? I did what was mentioned above about saving a core/game preset, but the preset only says this in the file for both presets:
Genesis works fine, as that is the background image I have in the crt-guest-sm.slangp file. But if i go to load an SNES game in bsnes-mercury and apply the shader, it will show the Genesis overlay graphics.
Did I miss a step? TIA