US 12,307,555 B2
Cube mapping using gradients of an input block of fragments
Rostam King, Hertfordshire (GB)
Assigned to Imagination Technologies Limited, Kings Langley (GB)
Filed by Imagination Technologies Limited, Kings Langley (GB)
Filed on Feb. 26, 2024, as Appl. No. 18/587,288.
Application 18/587,288 is a continuation of application No. 17/883,466, filed on Aug. 8, 2022, granted, now 11,915,345.
Claims priority of application No. 2111403 (GB), filed on Aug. 6, 2021.
Prior Publication US 2024/0202991 A1, Jun. 20, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G06T 11/00 (2006.01); G06F 30/31 (2020.01); G06F 30/392 (2020.01); G06T 1/20 (2006.01)
CPC G06T 11/001 (2013.01) [G06F 30/31 (2020.01); G06F 30/392 (2020.01); G06T 1/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of cube mapping, the method comprising:
receiving fragment coordinates for an input block of fragments and texture instructions for the fragments;
determining, based on gradients of the input block of fragments, whether a reduced precision mode of cube mapping can be used, wherein the reduced precision mode of cube mapping performs calculations at a first precision for a subset of the fragments and calculations for remaining fragments at a second, lower, precision; and
in response to determining that the reduced precision mode of cube mapping can be used, using the reduced precision mode and the gradients to perform cube mapping.