Digital 3D

Digital 3D is a non-specific 3D standard in which films, television shows, and video games are presented and shot in digital 3D technology or later processed in digital post-production to add a 3D effect.

One of the first studios to use digital 3D was Walt Disney Pictures. In promoting their first CGI animated film Chicken Little, they trademarked the phrase Disney Digital 3-D and teamed up with RealD in order to present the film in 3D in the United States. A total of over 62 theaters in the US were retrofitted to use the RealD Cinema system. The 2008 animated feature Bolt was the first movie which was animated and rendered for digital 3D whereas Chicken Little had been converted after it was finished. Even though some critics and fans were skeptical about digital 3D, it has gained in popularity. Now there are several competing digital 3D formats including Dolby 3D, XpanD 3D, Panavision 3D, MasterImage 3D and IMAX 3D. The first home video game console to be capable of 3D was the Sega Master System in which a limited number of titles were capable of delivering 3D.

A first wave of 3D film production began in 1952 with the release of Bwana Devil and continued until 1955, a period known as the golden era of 3D film. Polarized 3D glasses were used. It was among several gimmicks used by movie studios (such as Cinerama and Cinemascope) to compete with television. A further brief period of 3D movie production occurred in the early 1980s.

...
Wikipedia