Disney Digital 3-D

Vorlage:Mergeto Disney Digital 3-D is a brand used by the The Walt Disney Company to describe digitally animated three-dimensional films shown exclusively using digital projection. It is essentially a Disney brand of Real D Cinema technology.

The first film released using this technology was 2005's Chicken Little. For this release, the computer-animated film was rerendered in 3-D by Industrial Light & Magic and exhibited with Real D Cinema format using Dolby Digital Cinema projection systems.

Disney re-released The Nightmare Before Christmas, three times, in a remastered 3-D version, first on October 20, 2006, and second on October 19, 2007; it was re-released again on October 24,2008. Disney also released a 3-D version of its computer-animated feature Meet the Robinsons. Then Disney launched Hannah Montana & Miley Cyrus: Best of Both Worlds Concert on February 1, 2008 and on February 27, 2009 Jonas Brothers: The 3D Concert Experience, both concert movies in Disney Digital 3-D. The first Disney Digital 3-D movie ever to be made by Pixar will be Up. Pixar's other films Toy Story and Toy Story 2 are set for re-releases in Disney Digital 3-D as a double feature on October 2, 2009.

How it works

Audiences viewing a film presented by Real D are given a pair of plastic 3D glasses. The glasses have circular polarized lenses, each polarized differently. Circular polarization allows much greater head movement than linear polarization without loss of 3D effect or ghost images. This increases audience comfort and helps to mitigate the "3D headache" caused by many 3D systems, especially those relying on film projection.

The movie is projected digitally, with a single Christie, Barco or NEC DLP Cinema projector (other digital projection technologies would work as well if fitted with the proper equipment) at 144 frames per second, six times as fast as a normal movie. Every 1/24 of a second (the projection frame rate for normal 2D movies on film) the two scene views called "right eye" and "left eye" are each shown 3 times (6 flashes of image on the screen matching the 6 times higher projection rate). Due to persistence of vision, the 72 image frames and 72 black frames fed to each eye in a given second should be perceived as a relatively flicker-free image. Due to the low original framerate, the channel separation isn't optimal during horizontal camera movements which results in minor ghosting effects.

In front of the projector lens sits the Z-Screen, an electronic device developed by Lenny Lipton from Stereographics. It inserts a polarizing screen that matches the polarization of either the right lens or left lens of the glasses worn by the audience. When the left-eye-matching Z-Screen is in place, the viewer's right eye sees nothing at all (or almost nothing) while the left eye sees a normal looking frame. For the next frame of the movie, the Z-Screen swaps the polarizing screen to match the right eye lens in the glasses worn by the audience. Now the audience sees nothing (or nearly nothing) with the left eye and a normal but slightly shifted version of the frame in the right eye. The brain knits together the alternating left-right perspectives into a seamless 3D view of the movie scene.

The single projector setup has a number of advantages over previous 3D systems:

• It eliminates most "ghost images" caused by the left eye seeing a bit of the right-eye frames and vice versa.
• It eliminates any form of temporal (time) or spatial misalignment of the left-eye and right-eye frames that plagued previous 3D projection systems relying on movie film. The mechanical jitter of the film in the projector and the poor frame-to-frame matchup generated most of the dull headache 3D side effect caused by the eye muscle strain — along with the much improved, but still slightly flawed, horizontal/vertical polarization system seen for the last 20 years or so in motion simulation amusement rides, IMAX 3D and in limited other venues (Walt Disney World, Disneyland etc.).

The main trouble with polarized 3D systems for movies is a loss of screen brightness. As every other frame is "invisible" to one of your eyes, the image would seem only half as bright, if projected onto a normal screen.

However, this loss of brightness is counteracted to some extent by the fact that theaters must use a silver screen for this type of projection. A normal white matte screen dissipates the polarization of the projected light. The separation of the two images would be immediately lost, without the silver screen.

Confusion

Fewer than 100 theaters across the US were equipped to show the movie Chicken Little in 3D. Many viewers were not even aware of the 3D version because many people assumed "Disney Digital 3D" refers to the 3D modelling of the CG characters, not the 3D stereoscopic presentation of the movie.Vorlage:Fact The release of Meet the Robinsons was equipped for more than 600 theaters.

Titles

Title	Original year of release	Year of 3D release	Notes
Chicken Little	2005	2005	digitally animated film rerendered for 3D
The Nightmare Before Christmas	1993	2006/2007/2008	stop-motion animated film remastered and converted to 3D
Knick Knack	1989	2006	digitally animated film rerendered for 3D
Meet the Robinsons	2007	2007	digitally animated film rerendered for 3D
Working for Peanuts	1953	2007	traditionally animated short film from 1953, originally created in 3D; shown alongside with the 3D projection version of Meet the Robinsons
Hannah Montana & Miley Cyrus: Best of Both Worlds Concert	2008	2008	Concert tour directly recorded in 3D for limited theatrical release, soon extended due to popular demand. First Disney Digital 3D release to see a 3D home video release.
Bolt	2008	2008	digitally animated film rerendered for 3D
Tokyo Mater	2008	2008	A Cars Toons short. PIXAR's first 3-D project. Shown alongside Bolt.
Jonas Brothers: The 3D Concert Experience	2009	2009	Concert tour directly recorded in 3D for theatrical release. Also first Disney Digital 3D release to also be presented in IMAX 3D.
Up	2009	2009	Pixar's first 3D feature film.
G-Force	2009	2009	First Disney live-action movie to be produced in 3D
Toy Story	1995	2009
Toy Story 2	1999	2009
A Christmas Carol	2009	2009	Also to be presented in IMAX 3D.
Alice in Wonderland	2010	2010	Announced at the time Bolt was being produced. Also to be presented in IMAX 3D.
Toy Story 3	2010	2010
Beauty and the Beast	1991	2010
Rapunzel	2010	2010
Cars 2	2011	2011
The Bear and the Bow	2011	2011
Newt	2012	2012
King of the Elves	2012	2012

External links

• "Disney Hatches Chicken Little in Digital 3D" (AWN, October 31, 2005