Patent ID: 8159505
Filing Date: 2012-04-17
Classification: G06T,G09G,G11B

Abstract:
1. A processor-implemented method of compositing a plurality of planes comprising at least a first plane and a second plane onto a target surface, said method comprising, at least one processor: i) dividing said surface into strips, each of said strips bounded by a first set of edges corresponding to a first set of boundaries of each of said plurality of planes; ii) dividing said strips into partitions by subdividing each of said strips along a second set of edges corresponding to a second set of boundaries of each of said plurality of planes, each partition made up of connected pixels to be composited from the same subset of said plurality of planes associated with said each partition; said partitions comprising at least a first partition to be composited from at least both said first and second planes; a second partition to be composited from at least said first plane but not said second plane; and a third partition to be composited from at least said second plane but not said first plane; iii) merging those adjacent partitions that have identical associated subsets of said plurality of planes; iv) compositing pixels for each of said partitions from corresponding pixels of said associated subset of planes to render an image on said target surface.