Patent ID: 7880743
Filing Date: 2011-02-01
Classification: G06T

Abstract:
1. A method of performing an attribute determination for a surface point, comprising the following steps, implemented in a computer system, of: receiving a surface point having an attribute to be determined, the surface point having a location and a micropolygon sampling region associated therewith; determining a multi-dimensional set of sub-regions in the sampling region, the set of sub-regions having two or more dimensions in texture space, the sizes of the sub-regions being determined by at least one of a size and a shape of the sampling region; creating a set of bounding boxes corresponding to the multi-dimensional set of sub-regions, the set of bounding boxes occupying less area than a single bounding box corresponding to the sampling region in texture space; determining, using the bounding boxes, a local attribute for each sub-region based on a pre-computed array of values for that sub-region; and processing the local attributes for each sub-region to determine an attribute for the surface point.