Floob
Member
Post count: 1629

Although I think these need to be called in, so you call your shader “snescustom.glslp” (put it wherever – probably in shader dir is best) or similar, then its contents would be

shaders = "1"
shader0 = "/opt/retropie/emulators/retroarch/shader/scanline.glsl"
filter_linear0 = "false"
wrap_mode0 = "clamp_to_border"
mipmap_input0 = "false"
alias0 = ""
float_framebuffer0 = "false"
srgb_framebuffer0 = "false"
scale_type_x0 = "source"
scale_x0 = "1.000000"
scale_type_y0 = "source"
scale_y0 = "1.000000"

Some shader settings info here:
https://github.com/libretro/RetroArch/wiki/RGUI