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I've acquired a new superpower

danielwirtz.com

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Re: I've acquired a new superpower

#121

Post by unkulunkulu »

soco wrote: post #72
physicles wrote: post #71

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.

Not even sure which one I should try :) but yes tried both to no avail. Maybe it's just not something to achieve in the first try...

how I approached crossing: first practice just crossing your eyes and observing how every object has two images in this case and when you slowly “uncross”, they merge back into one. you can use anything in your surroundings.

then for the stereogram you do the same, observe the out of focus edges of the left and right pictures, then slowly uncross until left and right image occupy the same spot as though they were the same object. now its out of focus, but one (ok, actually three, because there were two, you “doubled” that by crossing, then merged two of them. but ignore the other two and focus on the merged pair)

sometimes you will merge images of the same picture, in this case you are just back at your normal vision, repeat :)

then you try to keep them overlapped and focus the vision, try to “believe” that you are really looking at a single object.

Re: I've acquired a new superpower

#122

Post by aidenn0 »

whatshisface wrote: post #113
ses1984 wrote: post #64

Earlier quoted context omitted.

Instead of crossing your eyes to focus in front of the image, you have to uncross them and focus on something behind the image. Put your finger about six inches in front of your face and then look at the horizon. If the horizon is in focus you should see two fingers.

Focusing behind is much easier because you can get yourself started by focusing on an actual object.

Focusing in front can be done by focusing on an actual object too? Many people e.g. put a finger between them and the picture and then remove it.

Re: I've acquired a new superpower

#123

Post by rwmj »

soco wrote: post #65
Workaccount2 wrote: post #43

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.

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

I spent far too much time as a twenty-something generating autostereograms, which seems to have trained my eyes. I was able to "cross" the images on this page very quickly.

Re: I've acquired a new superpower

#125

Post by duxup »

Workaccount2 wrote: post #43

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 ;)

Re: I've acquired a new superpower

#127

Post by phailhaus »

ses1984 wrote: post #67
phailhaus wrote: post #26

Earlier quoted context omitted.

For spot-the-difference, crossing your eyes is more effective and easier to "dial in" than uncrossing them. You're essentially making each eye look at the opposite image. If you try uncrossing, then you need to make sure the images are at the exact correct distance to cause them to overlap with that technique, because you can only uncross your eyes enough to look straight ahead.

It’s a good thing that properly designed stereograms take this into account and don’t require you to uncross your eyes past that point.

That's because you have to find the distance between your eyes and the stereogram to make it work. Crossing your eyes is easier because your eyes can turn inwards far more than they can turn outwards, so it works at more distances.

Re: I've acquired a new superpower

#128

Post by Terretta »

satvikpendem wrote: post #4

Note that there is a difference between crossview and parallel view. See this image [0] and try to overlap them. Depending on what you see in the foreground, that is the type of view you're able to see. Basically, it determines whether the 3D view you're seeing from the stereoscopic pair is convex (pops out of the page) or concave (goes into the page). It is of course possible to learn both views but most people natu…

Note that for parallel viewing the left edges (or centers) of the images should not be farther apart than your own eye spacing aka interpupillary distance (IPD) sometimes just called PD.

That imgur may need to be shrunk depending on your screen for parallel to work.

Re: I've acquired a new superpower

#129

Post by whatshisface »

aidenn0 wrote: post #122
whatshisface wrote: post #113

Earlier quoted context omitted.

Focusing behind is much easier because you can get yourself started by focusing on an actual object.

Focusing in front can be done by focusing on an actual object too? Many people e.g. put a finger between them and the picture and then remove it.

The finger method interferes more with the third image in my experience.
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