Autodesk 64006-051108-9001 User Guide - Page 265

257 Frame Rate - number of frames per second of a movie. FTP (File Transfer Protocol) - common Internet protocol used for transferring files between computers. Gamma - curve that describes how the middle tones of images appear. Often confused with brightness/contrast, gamma is a non-linear function. Changing the value of the gamma affects middle tones while leaving the white and black of the image unaltered. Gamma adjustment is commonly used to compensate for differences between Macintosh and Windows video cards and display. Gamut - range of possible colors within a given color space. For example, the gamut of NTSC is dramatically more limited than the gamut of the RGB color space. Generation Loss - image degradation that occurs each time a movie is saved with a lossy compression codec. Also occurs in each dub with analog video tape. GOP (Group of Pictures) - self-contained sequence of MPEG frames starting with an I-frame, followed by B-frames and P-frames and ending with a I-frame. Go to Time - EventStream event that enables you to jump to a specified time code. Can be used by itself or with hotspots. Helpers - refers to programs often used in conjunction with Cleaner. The Helpers menu lets users easily open their source or output movies with user-defined applications. Hotspots - EventStream event that enables you to assign an action to a specific area in a movie that, when clicked, triggers a specified action, such as Open URL, Go to Time or Play events.