• prembil@lemmy.world
          link
          fedilink
          arrow-up
          2
          ·
          2 months ago

          Just another of those internet image optical illusions. You won’t be fooling anyone on here 🧐

      • jettrscga@lemmy.world
        link
        fedilink
        arrow-up
        3
        arrow-down
        1
        ·
        edit-2
        2 months ago

        I don’t understand the basis of the 24Hz limit rumor. My monitors are 144Hz, and if I limit them to 60Hz and move my mouse around I see fewer residual mouse cursors “after-images” than I do at 144Hz. That’s a simplified test that shows that the eye can perceive motion artifacts beyond 60Hz.

        The eye can perceive LEDs that are rectified at 60Hz AC, it’s very annoying.

        • Hjalmar@feddit.nu
          link
          fedilink
          arrow-up
          2
          ·
          2 months ago

          I think it’s the limit for what most people can see as jittery motion. You may be able to differentiate between higher FPS settings, but above 24 hertz most people shouldn’t be able to see discrete steps.

          That’s at least how I’ve come to understand it

        • SkunkWorkz@lemmy.world
          link
          fedilink
          arrow-up
          1
          ·
          edit-2
          2 months ago

          24hz is the lower limit. People will perceive 24hz as a smooth sequence, especially with motion blur, while anything below it will start to look choppy. Of course humans can perceive higher frequencies. But 24hz became the standard because celluloid film is expensive especially in the early days of cinema. The less frames you need to shoot the less film you need to buy and develop. And film back then was probably not sensitive enough for the lower exposure times that come with higher frame rates.

        • gens@programming.dev
          link
          fedilink
          arrow-up
          1
          ·
          edit-2
          2 months ago

          Your eyes are not digital. Nothing physical really is. Think about a camera flash. They can get well under 3.33ms, meaning over 300fps, and you can still see it clearly (and painfully). Same for a monitor, it also has a “response time”. It is how long it takes for a pixel to transition color. (Usually “gray to gray”, as in one shade of gray to another. Black to white would be longer, as is for eyes.)

          So ofc you would see all the mice.

          It’s also why motion blur is a thing, even though it was usually implemented incorrectly. Seeing every motion on a tv or monitor in perfect sharpness feels weird, because they are pictures not actual movements.

          Your brain makes movements out of it all.

          Anyway: 16 is minimum, 24 is good for most movies, 30 for slower games, 60 minimum for fps (75 and above for faster fps, even though i played xonotic on 45), 120 for vr.

      • Prime@lemmy.sdf.org
        link
        fedilink
        arrow-up
        1
        ·
        2 months ago

        No it can see much more. Bonus: your brain can ‘see’ more than 100hz too. Google bundesen tva. Source i worked on programs to measure it for my gfs phd. Also i play fps :D