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Buggy3D t1_j87syz9 wrote

For those who don’t know:

Unfocus your eyes such that you see a double vision (4 sets of earth moon, 2 on each side).

Then move your head closer or away from your screen until you merge the left and the right double vision into a single one in the middle.

That will give you the illusion to be looking at a 3d picture.

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Old_comfy_shoes t1_j87vwxf wrote

Ya, same technique as those 3d eye illusions from the 90s.

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Idman799 t1_j886ytc wrote

Can you explain this one more time? Aren't there already 4 sets of moons with two on each side? When you say "unfocus" your eyes, I assume you mean cross your eyes? And finally, when you say they converge into a single one in the middle, do you mean I'll see only one earth and one moon? I don't see how that can happen when they're not all on the same height on the screen.

Sorry to spam you with questions, but I'd love to see this work and I don't really get it from what you said here.

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Buggy3D t1_j88cldy wrote

Yeah. It was hard to explain, but the idea is to bring the picture close enough to your face that you see it in double.

You can then adjust your eyes focus and the distance from your face so as to form a central optical illusion.

Similar to when you raise one horizontal finger in front of each eye. If you bring both fingers close to each eye. You can form an optical illusion whereby the tips of each finger appear like they have merged on opposite ends of each other.

Doing the same here with the picture can let you see a 3D optical illusion of the Earth and moon, albeit unfocused.

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TarryBuckwell t1_j89ak7x wrote

Another way to think about “unfocusing your eyes” is refocus your vision on an imaginary object that is slightly beyond the image (in this case behind your phone). This is why people say to move the image slowly away from you while relaxing your eyes but it’s unnecessary- all you are actually doing is widening your pupillary distance to achieve the optical illusion, which is what naturally happens when you focus on things at longer distances.

Look at your phone, then look at something past it and you’ll see your phone doubles in your vision. Just do that to the picture until you see a third vertical set of photos. The effect is not very 3D in this case as it would be with a magic eye but it’s slightly more dynamic than just looking at the screen.

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hldsnfrgr t1_j88nhgu wrote

Yeah. But how do I merge the top and bottom after merging the left and right?

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CheetoRay t1_j8c0ady wrote

The top image is cross-eyed stereoscopic. The bottom one is wall-eyed. The entire difference is that the left and right images are swapped. Use whichever you like.

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Representative_Pop_8 t1_j8eceyj wrote

how is the top one supposed to work, bottom one works perfect for me but top one is wrong no matter what I try to do to make the images do, I can get them to match but the effect is wrong, I assume reversed probably.

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CheetoRay t1_j8i0hgg wrote

As the technique name implies, you cross your eyes until two images merge.

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