Patent ID: 9311743
Filing Date: 2016-04-12
CPC Classification: G06T

Claim Text:
1. A method comprising: selectively merging, with a graphics processing unit (GPU), a source tile of samples associated with a tile location with a merged source tile for the tile location to generate an updated version of the merged source tile based on whether the source tile is fully covered by a primitive that corresponds to the source tile and based on whether a conservative farthest z-value of the source tile is nearer than a culling z-value associated with the tile location, the culling z-value being indicative of a conservative farthest z-value for all samples of a destination tile that corresponds to the tile location; and invalidating a cache line in a cache unit that stores a data record for the merged source tile in response to determining that the source tile is fully covered by the primitive that corresponds to the source tile.