how to setup vertical shaders in lr-mame2016 [solved]
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Pi Model 4B 4GB, official Power Supply running RetroPie 4.8.1 (ee438544)
Built from: retropie-buster-4.8-rpi4_400.img.gz
Emulator: lr-mame2016 installed via binary
How to replicate the problem: load up any game and choose one of the vertical shaders in the libretro menu (eg. crt-pi-vertical, zfast_crt_standard_vertical)The scanlines are along the horizontal axis and are not rotated, is there any option within the libretro menu I am missing (I assumed the rotation to be automatic (as in lr-mame2003+)) which has to be set?
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I thinks it's a
butbug - see https://github.com/libretro/mame2016-libretro/issues/51 -
@mitu yes, it's a bug, basically mame2016 and mame are sending vertical content while telling RA it's horizontal, i recommend avoiding those 2 cores for vertical games whenever possible.
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@mitu & @barbudreadmon Sigh, regardless: thanks for the info/clarification!
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@Ashpool Note that if you were looking into more recent MAME vintages to fix emulation issues present in older ones, FBNeo would be a solid alternative and doesn't have the rotation bug.
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