How is 3D TV different from 3D at the movies?
Viewing 3D movies in a theater has always required the audience to wear some type of 3D glasses. For older movies, these “passive” glasses used two different colored lenses, typically red and blue, and color-coded film to create the 3D effect. More recent movies are based on 3D glasses with polarized lenses, which look more like standard sunglasses. Again, the key to creating the 3D effect is to create slightly different perspectives for each eye.
