Patent ID: 9142037
Filing Date: 2015-09-22
Classification: G06T,H04N

Abstract:
1. A method of determining for a set of texture data elements to be encoded for use in a graphics processing system, a direction in the data space of the texture data elements to be used when determining a base data value or values to be used for the set of texture data elements when encoding the set of texture data elements, the method comprising: determining by processing circuitry, for at least one plane that divides the set of texture data elements to be encoded into two groups in the data space, the direction of a vector in the data space from a point in the data space that is based on the values of texture data elements of the set of texture data elements to be encoded whose values lie on one side of the plane in the data space to a point in the data space that is based on the values of texture data elements of the set of texture data elements to be encoded whose values lie on the other side of the plane in the data space; and using, by the processing circuitry, the direction determined in the data space of the texture data elements for at least one of the at least one planes that divide the set of texture data elements into two groups in the data space to determine a direction in the data space to be used when determining a base data value or values to be used for the set of texture data elements when encoding the set of texture data elements.