Thread: 3D pictures- With no glasses!

Originally Posted by Aquanina

No...it isn't. When you focus your eyes to see those 3d images posted above, you can just leave your eyes that way and scroll down and see all the images the same...but when you get to the magic eye image that ninja posted...it's wrong. When you look at that magic eye picture in the same way that you see the 3d images, the image is actually overlaid with ninja's avatar and out of focus. Attempting to change perspective to bring into focus just results in the image appearing inverted and looks nothing like what you are "supposed" to see. With the magic eye, you are supposed to see skittles or whatever floating in space in front of the background. But when you focus your eyes on it the same way as you would for the 3d images, then you will see a plane that is the foreground, and the skittles are actually cut out of the foreground plane and move backward in space...like the image becomes reversed. So maybe you aren't seeing the first image that it's supposed to be? You cannot claim that they are exactly the same thing. And if you insist that they are, then you must not be looking at one or the other correctly.

nope.avi

You have to change your focus for all of the images, as they're all different distances apart; the mountain one takes particular effort compared to the sexay one for example because the distance is quite a bit greater. ninja's uses exactly the same principle; it's just that the file format is a lot smaller and hence you need to do a lot less unfocusing. All magic eye pictures do is use a tessellated texture, which hides the original object, and gives you some reference point so you know how far to unfocus. In both cases all that is being done is you are seeing an object or scene from the left in your left eye and from the right in your right eye, and the brain can then perceive the 3D due to binocular vision. That ninja's image uses a plane with stuff in the foreground is totally irrelevant: that's simply the 3D object they chose to represent, and you could just as easily take two photos of a similar scene, or make a magic eye picture without such an object. Here is a magic eye pic with a greater focus distance and more interesting 3 dimensionality to help you understand:

http://fc04.deviantart.com/fs15/f/20..._by_3Dimka.jpg

Also an awesome page I just found on the Wiki, complete with animated 3D shark:

http://en.wikipedia.org/wiki/Autostereogram

Originally Posted by tommo

Yes! I finally got these stupid things. (not really)

Aquanina is correct. They are not the same. These stereoscopic ones are taken of the same image, but at a slightly different angle. The same distance as your eyes are apart. Most likely with the new cameras they have that have two "irises"
So that when you cross your eyes and merge them together again, you see it as you would see it IRL.

Originally Posted by tommo

I hate how people argue with common knowledge.

I hate how people can be so hypocritical.

Seriously, you described how the first pics work, and then contrasted it with... nothing. Because apparently you don't know how the magic eye pictures work, and if you took a couple of minutes to check it out you'd find that it's the same.