In video, the level of white in a video picture; in audio, the loudness of an audio signal.
Gamma
A curve that describes how the middle tones of an image appear. Gamma is a nonlinear function often confused with "brightness" or "contrast." Changing the value of the gamma affects middle tones while leaving the whites and blacks of the image unaltered. Gamma adjustment is often used to compensate for differences between Macintosh and Windows video cards and displays.
Gap
Locations in a sequence where there is no media on any track. When output to video, gaps in an edited sequence appear as black sections.
Generators
Clips that are synthesized by Final Cut Pro. Generators can be used as different kinds of backgrounds, titles, and elements for visual design.
Gradient
A generated image that changes smoothly from one color to another across the image. The change can occur in several ways: horizontally, vertically, radially, and so on.
Green screen
A solid green background placed behind a subject and photographed so that later the subject can be extracted and composited into another image.
