Online Glossary

Mask

Matte

Mise-En-Scene

Montage

Morphing

MPEG2

A form of mask developed for film in the early 20th century. A mask would be placed over an area of the lens, leaving parts of the film unexposed. This would create the ‘matte’. The mask could then be inverted, and the remaining film exposed to a completely different image. This was how optical compositing was achieved, before computers made digital compositing a possibility.
See also; mask, composite