Insane retroarch "vertical screen tearing" issue

Discussion in '3DS - Flashcards & Custom Firmwares' started by Tumbtack, Jul 24, 2016.

  1. Tumbtack
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    I'm not even really looking for a solution as I can just continue to use the older build that was working fine until I updated, I just can't see how this issue would even be possible.
    Can anyone explain this?
    I'm on a Luma3DS 11.0 new3DS.
     
  2. MartinDocNewland

    MartinDocNewland Searching for the truth

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    From 1.3.4 onwards Retroarch have tried to add 3D to its emulators on the 3DS so that's why the tearing is there. It's very badly implanted and that's why people say stick to 1.3.3
     
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  3. Tumbtack
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    Not gonna lie I actually think that's really awesome but they really need to make it only apply to the vb core build. Or just implement it better d:
     
  4. MartinDocNewland

    MartinDocNewland Searching for the truth

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    You are spot on my friend. How awesome would it be to actually have 3D in a virtual boy emulator but sadly all Virtual Boy emulators don't run that well :(
     
  5. Tumbtack
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    I mean Mednafen VB is pretty fantastic but I haven't tried it on my 3ds yet, does it run badly?
     
  6. MartinDocNewland

    MartinDocNewland Searching for the truth

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    Oh yeah, 15fps I can only get out of it on a N3DS. There is R3D Dragon for 3DS too, not played with that yet but I read that it's better
     
  7. Tumbtack
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    What's the newest 1.3.3 build, if you have any idea?
     
  8. CheatFreak47

    CheatFreak47 Complex Donut

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  9. Tumbtack
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  10. Urbanshadow

    Urbanshadow GBAtemp Maniac

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    It's not retroarch's issue. I have written hombrew that uses citro3d and I have the same tearing problems in the same position. I think something is not right in one of the main libraries.

    I think it has something to do with the way framebuffers are handled. I think the top tearing happens exactly where the bottom screen has its first pixel column. Maybe a race condition?
     
    Last edited by Urbanshadow, Jul 28, 2016
  11. Tumbtack
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    Ok now (on 1.3.3) when I try to launch any neo geo roms I get:
    RetroArch [INFO] :: Does not have enough samples for monitor refresh rate estimation. Requires to run for at least 4096 frames.
    Any clue guys?
     
  12. Urbanshadow

    Urbanshadow GBAtemp Maniac

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    It's a INFO level log. It's not a problem. The error must be coming from something else. Did you setup any possible required files for neo-geo mode?
     
  13. Tumbtack
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    It used to work fine. The only thing that has changed is I've moved from 1.3.1 3dsx build to 1.3.3 cia build.
    EDIT: Ok the same issue happens in the CPS2 emulator, but doesn't seem to happen in pocketsnes. What gives?
     
    Last edited by Tumbtack, Jul 28, 2016
  14. apoptygma

    apoptygma GBAtemp Advanced Fan

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    I get this too, it's so annoying I just use my psp to play roms instead, would be nice to fix it