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I've acquired a new superpower

danielwirtz.com

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Re: I've acquired a new superpower

#451

Post by iDon »

I use this for quick comparison of minor differences in code / data (e.g. tables, DNA sequences). Variations in indentation are highlighted also, by standing out of the plane.

It's good to hear reports of successful viewing. I've got a 3d / stereogram photo gallery app on the back burner; sounds like a reasonable number of people would be able to view it. There are plenty of guides on how to learn this; some are linked here https://www.reddit.com/r/CrossView/wiki/index/. You-tube used to have support for this; there are still videos tagged yt3d - just regular videos now, not interlaced.

Re: I've acquired a new superpower

#453

Post by Fr0styMatt88 »

I taught myself how to free-view stereo side-by-side images on my phone but after I did so I found that I would get strong stereo impressions involuntarily just looking at certain repeating patterns in normal circumstances like watching TV with side-by-side images or when looking at patterned wallpaper.

My visual system is pretty weird in general so I don’t know how common an experience this is with others. It’s not bothersome at all because I know what it is but it was a little startling the first few times.

Re: I've acquired a new superpower

#454

Post by mattigames »

ksec wrote: post #452

Am I the only one who cant do that? Or does me having aphantasia has anything to do with it?

It would be pretty weird for aphantasia to have something to do with it, it's pretty much using the same technique one can use for cheap 3D effect with 2 videos from cameras slightly apart, it has everything to do with our bifocal abilities and not much else as far as I can tell.

Re: I've acquired a new superpower

#455

Post by lutusp »

Many decades ago, during my time as a NASA Space Shuttle engineer, a co-worker couldn't locate a rogue unbalanced parenthesis in a complex program listing, in the days when computers, instead of identifying a particular syntax error, would print lame error messages like "Something went wrong." Worse, we wrote programs by punching 80-column cards -- no syntax highlighting, no color monitors.

My co-worker printed two paper listings, one with the error, one without, and asked me to count parentheses as he was doing, over a dozen pages. But because I knew this "superpower" trick, I laid out pairs of pages and crossed my eyes. A few seconds later I found and circled the error.

"Ta-daa!" I said. He never forgave me.

Re: I've acquired a new superpower

#456

Post by MetaMonk »

kayge wrote: post #183
johnthedebs wrote: post #62

Earlier quoted context omitted.

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/upload…

You can also cross your eyes the other way and make the pattern in a MagicEye pop the other way (in vs out, or vice versa)

Re: I've acquired a new superpower

#457

Post by fudged71 »

iDon wrote: post #451

I use this for quick comparison of minor differences in code / data (e.g. tables, DNA sequences). Variations in indentation are highlighted also, by standing out of the plane. It's good to hear reports of successful viewing. I've got a 3d / stereogram photo gallery app on the back burner; sounds like a reasonable number of people would be able to view it. There are plenty of guides on how to learn this; some are link…

I wonder if this would be a legitimate form of code diff visualization with VR glasses, just show the A and B for each eye

Re: I've acquired a new superpower

#458

Post by irjustin »

ninetyninenine wrote: post #444
irjustin wrote: post #425

Earlier quoted context omitted.

How do you do this focusing beyond the screen!? I'm trying so hard to make this happen. Stare really far in the distance and then move the image in front of my face on my phone. No matter the distance between my face and my phone i can't overlap the images. Focus in front of the screen is the easy one. How do you get beyond....

You know how you can make your eyes see double when you cross your eyes a bit? Do this and you get 4 images. Combine align the center 2 images and your eyes will automatically “lock on”.

That's the focus in front right?

What's the beyond?

Re: I've acquired a new superpower

#459

Post by batch12 »

mewpmewp2 wrote: post #391
prmph wrote: post #260

Earlier quoted context omitted.

A simple trick to doing this, in case it's not clear how to do it, is to try focusing on an imaginary point behind the screen as you look at the images. You will see a third image between the two start to come into focus. Now relax your eyes and look at that image. Simple, and quite a bit more relaxing than crossing your eyes. The only disadvantage to this method is that it seems there is a limit to how wide the midd…

I was still unable to do this, not sure what I am doing wrong, but I can't get over the sense that I am always directing only one of my eyes. I can't move them independently.

In this case, you aren't directing your eyes, but instead looking through the object. Start with your finger about 6-8 inches from your face, and look at your screen. You'll see two fingers. Now try to look past your screen. The farther you are from the object the harder it is.

Re: I've acquired a new superpower

#460

Post by 14 »

Yes that top reddit comment is right. Years ago those magic eye pictures came out and at first I struggled to see the 3d pictures. Eventually it became trivial. Then somewhere I noticed it worked really well for those spot the difference puzzles. They often come on kids menus at some restaurants. I could spot all ten differences in seconds and my kids would be amazed. I finally tried to teach them but they found it hard to do. But ya in reality what this girl did was super easy and not challenging in the slightest. When you do it and cross your eyes inwards you cross your eyes until the pictures line up in the middle. The majority of the picture will be clear but any spots that are different will seem blurry. The trick is just not focus on anything in particular and just cross images until they clear up. Then make note of where it seems blurry. Cool trick but definitely ruined spot the difference puzzles for me.
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