this post was submitted on 04 Jul 2024
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Optical Illusions

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A community for sharing and discussing cool optical illusions.

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I hope this community becomes more active, I love illusions.

Edit: Some people are having trouble viewing it, so here's a link: https://imgur.com/gOaAxs3

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[–] [email protected] 33 points 4 months ago (1 children)
[–] [email protected] 35 points 4 months ago* (last edited 4 months ago) (2 children)

When it flashes a small black/white line is positioned on a specific borders to give a feeling of movement.

[–] [email protected] 12 points 4 months ago (1 children)

If you want to understand better how -- pause it when the cubes are rotating. The white/black edge lines actually have to gradient across the line so that one half of the cube moves one way and the other half moves the other. You can work out which way 'turns' what and how they're placed. I'm sure a cube was the easiest, but you should theoretically be able to do this with any shape.

[–] [email protected] 2 points 4 months ago (1 children)

What the hell are you guys talking about? Flashes and rotating?

[–] [email protected] 4 points 4 months ago* (last edited 4 months ago) (1 children)

Maybe it's not working for you, but it works on my phone... The lines of which the cubes are drawn are white/black. By changing the amount of each on a side, (WHITEblack whiteBLACK BlackwhiTE blackWHITE etc) in quick succession, one edge of the cube can look like it's approaching or receding. It's based on the way shadows would behave for a real cube, and your brain processes it as such. (The ones I made up aren't in any order, whereas the ones in the gif are carefully synchronized)

[–] [email protected] 0 points 4 months ago (1 children)

No difference on my phone vs desktop.

[–] [email protected] -3 points 4 months ago (1 children)

Sounds like a skill issue.

[–] [email protected] 1 points 4 months ago (1 children)

opening a jpeg sure requires a lot of skill.

[–] [email protected] 0 points 4 months ago* (last edited 4 months ago) (1 children)

It's a good thing that it's not a jpeg then. So looks like you're opening a JPEG of a GIFV/MP4 file.

Dunno how you're managing that - but...skill issue. Because everyone else seems to be seeing the GIFV/MP4.

[–] [email protected] 1 points 4 months ago* (last edited 4 months ago)

Oh that's interesting. I'm browsing lemmy.world on my desktop. I click on the thumbnail and get :

this .

[–] [email protected] 2 points 4 months ago

Yes thank you. I covered up the arrows and it still looked like they were moving.

[–] [email protected] 14 points 4 months ago (1 children)

They aren't but the stuff inside their borders actively tries to look 3D and animate in a way that would make it look like movement (like shaders in games). And it's a shame the creator had to add those arrows inside as they don't affect anything.

[–] [email protected] 3 points 4 months ago

You can cover them up and it still works, they just add visual appeal. (Same reason there's two cubes.)

[–] [email protected] 14 points 4 months ago (1 children)

Damn, I'm gonna have to roll a bigger joint..

Subscribed!

[–] [email protected] 3 points 4 months ago
[–] [email protected] 9 points 4 months ago

This is upsetting me and I would like more please

[–] [email protected] 7 points 4 months ago

You know what's fun?

Treat it like a stereoscopic image. Let your eyes do the trick that works for those, the "magic eye" images and such.

The cubes stop "moving" entirely, but they now have depth

[–] [email protected] 6 points 4 months ago (2 children)

It's true. I don't see any movement 😥 Why doesn't it work on me?

[–] [email protected] 2 points 4 months ago (1 children)

I think we're being trolled.

[–] [email protected] 2 points 4 months ago

You're broken

[–] [email protected] 4 points 4 months ago (1 children)

Is this supposed to be a static image with a fake play button in it? Because that's all I'm getting. No animation, no changing pixels, and no illusion of movement

[–] [email protected] 11 points 4 months ago

Nah, it's an animation for maybe 30s

[–] [email protected] 2 points 4 months ago

> expands .jpeg preview on ShitJustWorks

They sure aren't.

[–] [email protected] 1 points 4 months ago
[–] [email protected] 1 points 4 months ago

Well, now I'm beginning to question reality... More, please!

[–] [email protected] 1 points 4 months ago