Patent ID: 7358974

Claim:
A method for minimizing an amount of data needed to test a geometry chunk in a frame against subarea boundaries in a compositing window, comprising the steps of: defining the geometry chunk with a bounding region, wherein said bounding region defines an outline of the geometry chunk; storing data that defines said bounding region for use in processing the geometry chunk in a subsequent frame; sending said data that defines said bounding region to graphics pipelines; determining, from said data that defines said bounding region, a graphics pipeline of said graphics pipelines that will render the geometry chunk; assigning a subarea in the compositing window to receive an output of said graphics pipeline; and communicating data associated with the geometry chunk to said graphics pipeline; wherein said graphics pipelines are configured to render the frame by spatial compositing through parallel processing, said data that defines said bounding region is less than said data associated with the geometry chunk, and the geometry chunk is different from said subarea.