It’s not a trick, if you’re wondering. There actually is something to see.

  • phanto@lemmy.ca
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    1 year ago

    This is my wierd superpower: I can see these things at a glance. shrug I was hoping for superstrength…

    • Venat0r@lemmy.world
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      1 year ago

      Me too, but only by going cross-eyed, so instead of a butterfly, I see a butterfly shaped hole.

      • AFK BRB Chocolate@lemmy.world
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        1 year ago

        I think that’s just what this kind looks like. I never see them as anything but a hole, or maybe like layers of cut paper separated from each other.

        Edit: nope, I’m wrong. There’s a difference between doing it cross-eyed and doing it… Whatever the opposite of cross-eyed is. I just did it both ways; one pops out and ones a hole.

    • discusseded@programming.dev
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      1 year ago

      So far I counted 4 outcomes depending on how I’m adjusting my eyes:

      1. Single pop out.
      2. Triple pop out.
      3. Some funky quad pop out that lasted a second.
      4. Single drop in.
    • ZoopZeZoop@lemmy.world
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      1 year ago

      I used to check out the books from the public library in the early 2000’s. I wasn’t able to see them for the longest time. Once I could, I did every stereograph I could get my hands on.

      • gramathy@lemmy.ml
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        1 year ago

        The actual concept isn’t difficult to implement (z+1? Shift it over a pixel and fill with an appropriate noise/blur function, then shift back for z-1)

        the hard part is building the depth map, especially when you’re using higher resolution. You’re essentially doing 3D rendering at that point

  • Lightsong@lemmy.world
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    1 year ago

    OMG I finally got it after all of those years… I get it what it’s supposed to look like.

    It’s butterfly and design/pattern is as same as the background, you just see it in somewhat 3D form, you’re not supposed to blur your vision too much, just slight. I kept trying changing the blur until I got it.

    WTF, so above method I did, I saw butterfly popped out. Then I tried doing the same but crossing my eyes, I see two cut out butterflies, like first one is bigger sunk in, then another smaller one sunk into the first butterfly.

    Mind blown.

    • Kedly@lemm.ee
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      1 year ago

      Holy shit, this is the first time it’s ever worked for me as well!

    • Cavemanfreak@lemm.ee
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      1 year ago

      Yep you can do it both ways, but the depth is inverted! I think most magic eye ones are for “looking through”, but there are ones made for crossed eyes as well.

    • douglasg14b@lemmy.world
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      1 year ago

      I’ve never been able to see them before and I saw this one.

      Not only does it look 3D but it actually changes perspective as I tilt my phone around wtf.

      Edit: I can’t get it to happen again :(

  • Etterra@lemmy.world
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    1 year ago

    Yeah these don’t work at all for me. Maybe it’s me astigmatism or something.

    • ElderWendigo
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      1 year ago

      It’s funny you say that. I have astigmatism, but I learned to see these on demand before I got glasses to correct it. The tricks all involve getting your eyes to focus farther away than the actual image surface. I could easily see the butterfly while wearing my glasses. Then I read your comment and tried again without my glasses and I could still see something but it was no longer a cute butterfly. Without my glasses, it was an abyssal horror with wings unfolding from other wings in a vaguely butterfly configuration.

      • JGrffn@lemmy.world
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        1 year ago

        Do you need both eyes for this? One of my eyes is almost useless and also lazy, the other one has… Something, I don’t recall what, but it’s all blurry from up close and hard to focus. Guessing astigmatism. I don’t wear glasses.

        • ElderWendigo
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          1 year ago

          Yes, it’s entirely dependent of tricking your eyes into changing their angle as if they are looking at something farther away than the image actually is.

    • silentknyght@lemmy.world
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      1 year ago

      Hmm. I used to be able to see these so easily, but that was such a long time ago and I’ve since had Lasik. I wonder if that changes things.

      • wheeldawg
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        1 year ago

        Why would that have anything to do with it?

  • 4am@lemm.ee
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    1 year ago

    I can only see them backwards by crossing my eyes. There’s as clear as day but they fall into the page, not pop out of it

      • badgerwrench@lemmy.world
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        1 year ago

        Yeah. There’s both versions of this. Cross view and parallel view. Depending how it’s made, it can pop out or sink into the image. Parallel view wants you to watch through the picture to a point where the patterns converge again. The tricky part is to focus on the converging image.

        • triclops6@lemmy.ca
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          1 year ago

          Do that’s what I do: I cross my eyes until I shift one pattern over to another

          It’s always sunk in though

  • SokathHisEyesOpen@lemmy.ml
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    1 year ago

    My mom got me a book with around a hundred of these in it like 35 years ago. When I met my now wife around 18 years ago she thought it was the coolest thing in the world. She had never seen them before, so it was neat to be the one to introduce her. She spent hours staring at that book. I think it might have even helped me seem impressive when we first started dating.

  • ShortFuse@lemmy.world
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    1 year ago

    Depending on how you cross your eyes you can see a single butterfly, a butterfly on top of a 4-winged butterfly, or a 4-winged butterfly on top of a 6-winged butterfly.