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    Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first

    Atari 2600 (lr-stella) + crt-pi.glslp shader or similar

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    lr-stella
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    • AlturisA
      Alturis
      last edited by Alturis

      This is my exact cfg if anyone spots anything:

      # Settings made here will only override settings in the global retroarch.cfg if placed above the #include line
      
      input_remapping_directory = "/opt/retropie/configs/atari2600/"
      
      video_shader_enable = "true"
      video_shader = "~/.config/retroarch/shaders/crt-pi-curvature.glslp" 
      
      input_overlay = /opt/retropie/emulators/retroarch/overlays/arcade-bezels/tv.cfg
      input_overlay_enable = true
      input_overlay_opacity = 1.000000
      input_overlay_scale = 1.000000
      
      #include "/opt/retropie/configs/all/retroarch.cfg"
      

      RP 4.7.1 • Pi4 4Gig • CanaKit Aluminum • 64GB microSD • 1920x1080 BarTop [2 Sanwa sticks]

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      • AlturisA
        Alturis
        last edited by Alturis

        It actually only seems to affect certain games.

        The ones I have confirmed:

        • The bullets in Space Invaders
        • Various objects in Frogger
        • Yar's Revenge - bullets and the band and lots of stuff
        • Dig Dug

        RP 4.7.1 • Pi4 4Gig • CanaKit Aluminum • 64GB microSD • 1920x1080 BarTop [2 Sanwa sticks]

        ClydeC 1 Reply Last reply Reply Quote 0
        • ClydeC
          Clyde @Alturis
          last edited by

          @alturis I can confirm that. The crt-pi-curvature shader makes the normally flickering objects "blink" in and out much more slowly, making them invisible for long periods.

          This effect doesn't occur with @ghogan42's zfast_crt_curve shader.

          AlturisA 2 Replies Last reply Reply Quote 0
          • AlturisA
            Alturis @Clyde
            last edited by

            @clyde Excellent thank you! Will give that a try.

            RP 4.7.1 • Pi4 4Gig • CanaKit Aluminum • 64GB microSD • 1920x1080 BarTop [2 Sanwa sticks]

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            • AlturisA
              Alturis @Clyde
              last edited by Alturis

              @clyde said in Atari 2600 (lr-stella) + crt-pi.glslp shader or similar:

              This effect doesn't occur with @ghogan42's zfast_crt_curve shader.

              Hmm... That doesn't seem to be what I am seeing in my tests. I tried both zfast_crt_curve and zfast_crt_standard and both demonstrate the same issues with frogger elements disappearing.

              Edit: Wait actually something is wrong in the way that the shader is being selected in my tests. After opening the in game menus to see what shader I had active it was still using the crt-pi version. Then manually switching to zfast fixed it yes. My bad. I will figure out what the deal is with my options setup and switch to those across the board. Thank you!

              RP 4.7.1 • Pi4 4Gig • CanaKit Aluminum • 64GB microSD • 1920x1080 BarTop [2 Sanwa sticks]

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              • AlturisA
                Alturis
                last edited by

                Hmm.... this is totally confusing me. I now cannot figure out why it is launching and loading the wrong shader.

                My dev/shm/runcommand.log shows that it is loading the .cfg that it should be

                /opt/retropie/configs/atari2600/retroarch.cfg

                Executing: /opt/retropie/emulators/retroarch/bin/retroarch -L /opt/retropie/libretrocores/lr-stella/stella_libretro.so --config /opt/retropie/configs/atari2600/retroarch.cfg "/home/pi/RetroPie/roms/atari2600/Adventure (1980) (Atari).bin" --appendconfig /dev/shm/retroarch.cfg
                

                Which specifies it should use the zfast_crt shader:

                video_shader = "~/.config/retroarch/shaders/zfast_crt_curve.glslp" 
                

                Yet in game it is still actively using crt-pi-curvature when I check in the menus. Cannot see how that could be possible.

                RP 4.7.1 • Pi4 4Gig • CanaKit Aluminum • 64GB microSD • 1920x1080 BarTop [2 Sanwa sticks]

                ClydeC 1 Reply Last reply Reply Quote 0
                • ClydeC
                  Clyde @Alturis
                  last edited by

                  @alturis Have you by any chance saved a game override in addition to the core config? See Config Hierarchy.

                  AlturisA 1 Reply Last reply Reply Quote 0
                  • AlturisA
                    Alturis @Clyde
                    last edited by

                    @clyde said in Atari 2600 (lr-stella) + crt-pi.glslp shader or similar:

                    @alturis Have you by any chance saved a game override in addition to the core config? See Config Hierarchy.

                    Nope. My atari2600 roms folder has no .cfg files in it at all. I have even installed locate, updated the db, and searched for al cases of atari2600 and there are no other .cfg files with that name in it other than the one I expect.

                    RP 4.7.1 • Pi4 4Gig • CanaKit Aluminum • 64GB microSD • 1920x1080 BarTop [2 Sanwa sticks]

                    dankcushionsD 1 Reply Last reply Reply Quote 0
                    • AlturisA
                      Alturis
                      last edited by

                      Totally baffled by this still. I even ran a grep of the entirety of /opt /dev /home /etc for anything containing 'crt-pi-curvature' and its only finding it in the places I already know about or unrelating things like the shader glslp files themselves.

                      I even tried using the in-game menu to change to zfast then saved that as the core default and still each time I re-open an atari2600 game it is back to crt-pi-curvature.glsl in shader pass 0

                      Stumped. ;(

                      RP 4.7.1 • Pi4 4Gig • CanaKit Aluminum • 64GB microSD • 1920x1080 BarTop [2 Sanwa sticks]

                      AlturisA 1 Reply Last reply Reply Quote 0
                      • AlturisA
                        Alturis @Alturis
                        last edited by

                        @alturis I think i figured it out. In my grep results I overlooked it because it was hidden as a glslp entry within the shaders/presets/Stella folder

                        So basically I had an entry in that folder called <rom_name_I_was_testing>.glslp that was still referring to the crt-pi-curvature.hlsl and it was using that instead of the core settings.

                        RP 4.7.1 • Pi4 4Gig • CanaKit Aluminum • 64GB microSD • 1920x1080 BarTop [2 Sanwa sticks]

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                        • dankcushionsD
                          dankcushions Global Moderator @Alturis
                          last edited by

                          @alturis said in Atari 2600 (lr-stella) + crt-pi.glslp shader or similar:

                          @clyde said in Atari 2600 (lr-stella) + crt-pi.glslp shader or similar:

                          @alturis Have you by any chance saved a game override in addition to the core config? See Config Hierarchy.

                          Nope. My atari2600 roms folder has no .cfg files in it at all. I have even installed locate, updated the db, and searched for al cases of atari2600 and there are no other .cfg files with that name in it other than the one I expect.

                          game overrides are not stored in rom folder. they would be in (from memory) /opt/retropie/configs/all/retroarch/config/ (somewhere in here)

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