A sprite track in QuickTime contains sprite animation that you create in an authoring program such as LiveStage or LiveStage Pro, Adobe's GoLive, or Electrifier Pro, and then import into QuickTime. Sprites can change position, scale, and rotation according to values inserted into a transformation matrix. Sprites are automatically cropped as they cross the edges of the frame. All these properties, and others, can be combined, and modified as the movie plays, enabling the creation of very complex images and behaviors at virtually no cost in bandwidth. An action attached to this sprite causes it to bounce whenever it reaches the edge of the frame.
Sprites use little bandwidth for impressive effects and are especially appropriate for streaming.
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