I've Acquired a New Superpower

Re:I've Acquired a New Superpower by claiir on Friday January 10, 2025 @02:08PM (#42658902)

This is called “divergence” [1] and is less straining on your eyes than crossing them (“convergence” [2]) while being equally as effective spotting differences, even on video. It’s also what your eyes naturally do when you watch stereoscopic 3D with tinted glasses—the stereoscopic images are pulled out (divergence) not pushed in (convergence/cross-eyed). I’ve been doing this since I childhood. If you get good at it, you can watch side-by-side 3D videos in 3D with just your naked eye (e.g. VR). I believe there’s a reddit covering the more prurient variety of that!

[1] https://en.wikipedia.org/wiki/Vergence#Divergence

[2] https://en.wikipedia.org/wiki/Vergence#Convergence

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Re:I've Acquired a New Superpower by stavros on Friday January 10, 2025 @04:43PM (#42660615)

The only problem with divergence is that you can't go too much farther out than the distance between your eyes, whereas convergence works for larger images as well.

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Re:I've Acquired a New Superpower by joshuaissac on Friday January 10, 2025 @06:44PM (#42661705)

Convergence highlighted the differences for me in all four images.

Divergence only worked for me in the cat bear image. For the others, I could see a combined image but I could not see any differences highlighted, even though I knew what to look for.

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