Talk:Disney Digital 3-D

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[edit] The physics behind it?

Can someone good at Physics please explain how this technology differs from other 3D movie technology? I watched the 3-D version of Chicken Little and believe me it is quite different from any other 3D movies that I have seen. By looking at the 3D glasses alone, I couldn't figure out how they do it.

In comparison, I have watched the Spy Kids 3D movie which uses the red/green glasses. I have riden most of the 3D rides in Disneyland which uses the polaroid (horizontal/vertical polarization) dark sunglasses. (Polar Express 3D was presented using polaroid glasses.) I have watched many IMAX 3D movies that uses a special goggle with electronic LCD shutters that open and close in sync with an invisible infrared signal projected along with the movie. I have made Stereoscopic slides when I was young, so I am quite familiar with how 3D works. If you wear one pair of 3D glasses and then hold up the second pair in front of you, you usually can see that one of the lens is darken. The selective passage of light in each lens enables the 3D viewing. I checked the same with the Chicken Little 3D glasses, and I couldn't find any difference between the left and right lens. They don't seem to be polaroid lens. For some unknown reasons, the movie looks great in 3D, much better than any other 3D movie that I have seen.

How did they do it? 67.117.82.2 01:01, 22 November 2005 (UTC)

The 3-D glasses from the movie do indeed use polarized lens. The effect is not obvious if you look through two pairs of glasses from the same direction. However if you turn one of the glasses around, e.g. you look at your friend who is also wearing the 3-D glasses, you can clearly see that one of the lens has turned dark. Kowloonese 00:42, 29 November 2005 (UTC)

According to the Stereoscopy article, circular polarization is used in this technology. The behavior of the 3-D glasses is quite different from the old linear polarization approach. The polarized light is not affected by rotating the lens, but only by flipping the lens over. Kowloonese 22:02, 13 February 2006 (UTC)

a good test is the miror test. Look at yourself in a moror wearing this "3D glasses". Each eye sees only the other eye. I did put some more specs in there. I will extend if you want. I think this should go to the Read-D page, for Disney 3D is just a brand name over a non-Disney technology. Lenny Lipton deserves his wikipedia page too Mendiburu