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

    • badgerwrench@lemmy.world
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      11 months 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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        11 months 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