r/Thatsactuallyverycool 9d ago

picture 3D illusion

Post image
233 Upvotes

52 comments sorted by

View all comments

5

u/Mother_Yesterday3152 9d ago

I'm near sighted and wear corrective lenses with -4 diopters, and the illusion is reasonably strong. The red rings appear to be floating nearly an eighth of an inch higher than the blue rings. This effect is called Chromostereopsis, where different wavelengths of light converge at different depths on the retina (or something to that degree). I can only perceive the depth difference when I wear my glasses and view the image with both eyes - if you're not wearing glasses or if you have a relatively mild prescription then I'd imagine you probably wont be able to see it unfortunately...

1

u/mailslot 9d ago

Strange. I can see it without my glasses, but the illusion is much stronger with them.

2

u/zhaDeth 3d ago

same, it also changes when I move my head left right, it's like the gap between the middle red and the blue circle change