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I've acquired a new superpower

danielwirtz.com

181–190 of 583 posts

Re: I've acquired a new superpower

#181
post #65

Earlier quoted context omitted.

I can't overlap the images to save my life - they get like halfway there and that's it...

Don’t CROSS them. Relax them, like you’re tired and can’t focus on a computer screen.

It helps me to see the depth and then properly focus to cross them very slightly to start, then as I see the image my eyes adjust to pull it in focus properly.

Re: I've acquired a new superpower

#182
This trick had been used in practice to detect fake banknotes and coins, with a device like a two-sided periscope. It allowed a bank worker to put a real coin on one side and the tested sample on the other, so that any differences can be immediately apparent.

Re: I've acquired a new superpower

#183

If you've done Magic Eyes, this is straightforward. Was able to get all 3 of the test images quickly. This is with focusing beyond the screen. Focusing in front of the screen is something I am unable to do, and not for want of effort. Also, your eyes might accidentally do this if looking at tiled patterns, e.g. wallpaper. Relative image size (e.g. view distance) is important.

As a kid, I got a Magic Eye book and learned to see it by crossing my eyes (ie, focusing in front of the screen). I thought it was pretty interesting when I realized that I was seeing all the images inverted ("peaks" were "valleys" and vice versa) due to the way I was focusing. Alas, I never was able to see the images "correctly".

It's funny because even if you do the Magic Eye pictures "correctly" (focusing past them) you can still get funky images by going too far and locking the surrounding pattern a second time. If I remember right the first time I did this was on a heart picture (similar to [0]), which ends up looking like a big puffy W stacked on top of a slightly larger puffy W :D

[0] https://i0.wp.com/www.magiceye.com/wp-content/uploads/2018/1...

Re: I've acquired a new superpower

#184
post #125

At a local bar they had a game machine, and if you got a high score on any of the games, your tab for the evening was free. One of the games was a "spot the differences" between two pictures with an ever decreasing timer for each round. Using this trick I was able to easily surpass the high score, and garner a crowd watching me perform this mind numbing feat. Probably my peak fame right there.

>Probably my peak fame right there. My son and I always make jokes about everyone's 5 minutes of fame. Some random person on the jumbotron at a sporting event "Yup, there's his moment, it's over now." At least yours got you something ;)

[deleted]

Re: I've acquired a new superpower

#185

Earlier quoted context omitted.

It's like https://triaxes.com/docs/3DTheory-en/522ParallelCrosseyedvie... which some people struggle with, somebody posted a https://en.wikipedia.org/wiki/Autostereogram to HN yesterday which some people get and others don't. (That's different from the "cross-eyed stereogram" because one of them involves having two images and the other one has one image with two images hidden in it)

I have a big problem crossing my eyes too while having no problem with the parallel view way seeing stereograms. I am actually going to stop trying as my eyes started to hurt.

Which one makes things become bigger? I learned that one first and then later figured out the one that makes the mixed image smaller (cross eyed I think?). Now I cannot do the big one anymore.

Re: I've acquired a new superpower

#186

Doesn't work for me. Just like stereograms. I just don't know how to "tell" my eyes to cross. Maybe similar to how I didn't figure out until I was 20-something how finger snipping works. Maybe by the time I'm 50 I can cross my eyes...!

The never work for me because my eyes don't work well together. Just not team players. I'm almost always looking through just one or the other, annoyingly usually the one that would least be preferable.

Re: I've acquired a new superpower

#187
We got a magic eye book when I was maybe 6 - some time early elementary school. After learning how to do it, and also trying it by crossing my eyes to see an "inverted" image, I started doing it whenever I saw some repeating pattern IRL. It was most interesting when it was slightly uneven, for example a fence with sloppily applied vertical planks. Doing the magic eye would make it seem like some of them are closer to you than others. Eventually I tried the same on those "spot the difference" games since well it seemed kinda obvious to try, and I was blown away that it accidentally gave me that "superpower". I think that was pretty smart for a 6yo. Has only gone downhill ever since. ;-)

Re: I've acquired a new superpower

#188

Earlier quoted context omitted.

Are you crossing your eyes (focusing nearer than the object) or diverging them (focusing past it)? Diverging is a harder skill to learn.

Is diverging harder? I find it easier. Maybe it is from long ago practice on stereograms, but I'm curious if it could be due to neurological/physiological differences.

It depends on the image. If the two images are too far apart then it could require your eyes to diverge, and not to just converge slightly less. That might be impossible.

Re: I've acquired a new superpower

#190
post #118

Earlier quoted context omitted.

I can understand why it's hard for some. I've landed on that wiki page a while ago and couldn't figure it out. Then found a similar thing on an itch.io page that was easier for me to figure out. In these later examples (starting with the easy puzzle of the OP, and your 3d examples), I find that I do the process in two stages. Unfocus my sight until the third image shows up in the middle at the correct size (as a blur…

What's more a lot of people (maybe 20%) don't benefit from things like https://www.reald.com/ which is one reason why stereo movies have struggled. (That plus some people get sick... Having both a flat and 3-d movie in two different theaters comes across as money grubbing to the consumer but it is really a money sink to the theater.)

Yeah that's me. I lack stereoscopic vision so such tricks or 3d glasses etc do not work.
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