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    • fishermanbill

      Better than CRT quality?
      General Discussion and Gaming • crt integer scaling scanlines shaders • • fishermanbill

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      fishermanbill

      @dankcushions

      Ah sorry missed read that - that makes more sense - ok good so it is doing nearest neighbour!

    • chubsta

      possible to get scanlines in Fuse similar to ones used in lr-fuse?
      Help and Support • fuse lr-fuse scanlines • • chubsta

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      mitu

      Fuse has a series on video filters available - scaling/simulating the video output on a TV, etc. Try one of those filters (TV x2 seem to simulate a CRT scanline display).
      Not sure of Zesarux has more advanced options, you could give it a try.

    • Cannikin

      Change emulator/shader resolution on high-res screen?
      Help and Support • atari resolution scanlines shader • • Cannikin

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      Cannikin

      Removing the curvature removes the morié pattern completely:

      alt text

      Which is a shame...I really love that curving for the old school feel, especially for the 2600 where there weren't any Trinitron sets yet!

    • sad_muso

      Shaders 101
      Help and Support • shaders crt shader scanlines curvature framerate • • sad_muso

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      dankcushions

      @sad_muso you didn't say what emulator you're using. afaik even simple shaders are often very system bus intensive, so they're constantly fighting for bandwidth with the GPU, CPU, etc. afair, lr-genesis-plus-gx really hammers the system bus, so try using lr-picodrive instead, if you're using the former.

      Are they CPU/RAM intensive or both? Does the Pi 4 cope with shaders better than the 3 B?

      first part answered above. pi 4 will cope better.

      Do overlays cause any hit on performance, specifically when used in conjunction with shaders?

      yes, for whatever reason they seem to.

      What is the least expensive way to implement curve and scanlines that is currently in existence?

      the way you're doing it already - z_pi_crt.

    • Spectreman

      All hail ZFast CRT
      General Discussion and Gaming • shader scanlines zfast crt • • Spectreman

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      mitu

      The crt-mattias and crt-geom are way too demanding for a Raspberry Pi, they're not installed by default on the Pi - only on a PC installation.

    • Deniss_K

      Scanlines on the menu (Emulationstation)
      Help and Support • scanlines emultionstation main menu • • Deniss_K

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      Clyde

      @Sanctus Alas, I don't know Batocera or its directory tree at all. Maybe you should ask this at the Batocera forums with reference to this thread. I guess you are the Sanctus over there, too?

    • foxp4v

      Scanlines by default in Amiberry
      General Discussion and Gaming • amiga amiberry scanlines • • foxp4v

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      sirhenrythe5th

      With the Update to 5.x there is no "line_mode=" anymore in the amiberry.conf.
      Does anyone know if it is still possible to set scanlines global?

    • Nikorasu081

      How to set Emulation Station at a different res than Retroarch.
      Help and Support • scanlines 240p • • Nikorasu081

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      hhromic

      @Nikorasu081 glad you got it working now!

      Regarding the 117Hz display, I'm not sure. That number is actually computed from pixel_frequency timings so maybe is dependent on the current GPU clock. Are you using a good power supply?
      Regarding the flickering, I have zero experience on using the composite out and CRT, so can't help you much there. Sorry! But yes, it does seem like having 117Hz instead of steady 120Hz can be the issue as you gradually get out of sync for the black frame insertion.

    • xFlesk

      Amiberry. how to disable those awful scanlines ?
      Help and Support • amiberry scanlines problem • • xFlesk

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      LineOf7s

      @xFlesk said in Amiberry. how to disable those awful scanlines ?:

      i dont know what happend with this amazing emulator, but since some update it plays games with those disgusting scanlines which are completly gamebreaking for me. is there any way to turn this shitty scanlines off ? i cant see any option related to it in F12 menu.
      thank you in advance

      Assuming we're talking about the same visual affect, turning off Line Doubling in the Display section removed those scanlines for me.

    • bodtx

      Change resolution in emulator to 640x480 and work with hardware scankine generator
      Help and Support • resolution scanlines emulator • • bodtx

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      thelostsoul

      I use HDMI to VGA at 640x480 too. Every emulator or even game can have its own resolution. I enabled the RunCommand launch menu and selected for each system (DMT-4 and 5 means 640x480). I don't know if I forgot something, but here it is.

      RunCommand launch menu:
      Select default video mode for "SYSTEMNAME" (DMT-4)
      and
      Select RetroArch render res for "SYSTEMNAME" (5)

      Then you can disable the RunCommand. I also set the resolution of EmulationStation itself through the file

      /boot/config.txt:
      hdmi_group=2
      hdmi_mode=4
      config_hdmi_boost=5

    • NightShadowPT

      Shaders on the menu (Emulationstation)?
      Help and Support • emulationstaion shaders scanlines main menu • • NightShadowPT

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      mitu

      No, Emulationstation doesn't have the ability to run shaders, that's something specific to RetroArch.

    • mauro123

      VICE optimal CRT emulation and speed
      Help and Support • vice scanlines crt emulation fps • • mauro123

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      No one has replied

    • Pyjamarama

      MAME and scanline configuration
      Help and Support • mame scanlines configuration • • Pyjamarama

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      Pyjamarama

      @dankcushions thank you for both the link and the configuration creation!!

    • thelostsoul

      Scanline shaders on CRT monitor? And problem with bottom black border at lr-snes9x
      Help and Support • vga monitor scanlines shader crt • • thelostsoul

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      thelostsoul

      Ok, so after I wanted play some games now, I realized the bottom part of the lr-snes9x games are always black. I can't say how many rows, but maybe 10th. The other sides are all on the edge of screen and Emulation Station is shawn correct, lr-nestopia too. Is there a setting I miss? The strange thing is, in RetroArch menu the whole screen is used. The emulator makes the image of game smaller and shows a black bottom border only.

      EDIT: Ok so, after quick testing, it happens also in PC Engine, but not the other emulators.

    • matchaman

      Pi2SCART: scanlines too thick!
      General Discussion and Gaming • pi2scart scanlines too thick • • matchaman

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      Yuke

      I also have the pi2scart ouputting on a 28 inch consumer crt from philips and dont have those "problems". I cant even take photos of my scanlines becaues they are so subtile. Would like them a bit more beefy to be honest but its not that easy to get a pro crt here sadly.

    • Karmeck

      Scanlines overlay for 1280x960
      Help and Support • overlay scanlines • • Karmeck

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    • BobHarris

      To all crt-pi shader users (artifacts appearing during motion)
      Ideas and Development • shader crt-pi scanlines artifacts • • BobHarris

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      BobHarris

      @dankcushions Yes I think that is what it looks like. But it's much easier to see in motion.
      It's not related to the resolution (I tried several).

    • AndrewH

      Idea: Scanline shaders for video screensaver
      Ideas and Development • screensaver video preview shaders scanlines • • AndrewH

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      RichardBr

      I don't know if it's possible during the game, but it's such a great idea when the screensaver is displaying videos. I tried to set up once but failed, I only have now some blank images...

    • pipesfranco

      Fully Opaque PNG still seeing game slighty under overlay...help :)
      Help and Support • overlay help curvature scanlines • • pipesfranco

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    • sonicsheppard

      [SOLVED] lr-genesis-plus-gx core has vertical scanline effect with crt-pi.glsl shader
      Help and Support • lr-genesis-plus crt-pi shader retroarch shaders scanlines • • sonicsheppard

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      sonicsheppard

      Please ignore this - I found out what the problem was, I'd turned on Shader #0 Filter to LINEAR. That is what was causing this effect in lr-genesis-plus-gx.