crt-mattias: original author has greatly improved version ready

[STPKITT]

Hello, everything explained here libretro/slang-shaders#134 , though I have no clue about the different shader formats which might or might not prevent use in DOSBox SVN.

[Metalhead33]

Can some NTSC shaders get ported over too? I tried doing it myself, but it working with such complex shaders is beyond me.