Patent ID: 9390689
Filing Date: 2016-07-12
CPC Classification: G06K,G06T,G09G

Claim Text:
1. A method for producing a set of compositing instructions to render a region, the method comprising: receiving a plurality of objects corresponding to the region partitioned into at least a first z-order band and a second z-order band, wherein each object is associated with a processing flag identifying whether the underlying objects contribute to rendered output; identifying a transparency group spanning at least the first and the second z-order bands, the transparency group including at least some of the received plurality of objects, wherein the transparency group defines compositing of said group with other received objects; selecting objects contributing to the rendered output of the region by changing the processing flag associated with at least one object in said first z-order band if said at least one object belongs to the identified transparency group; and producing a set of compositing instructions to render the region by processing the selected contributing objects.