US 12,243,151 B2
Reduced acceleration structures for ray tracing systems
John W. Howson, St. Albans (GB); and Luke T. Peterson, San Francisco, CA (US)
Assigned to Imagination Technologies Limited, Kings Langley (GB)
Filed by Imagination Technologies Limited, Kings Langley (GB)
Filed on Oct. 23, 2023, as Appl. No. 18/382,940.
Application 18/382,940 is a division of application No. 16/555,316, filed on Aug. 29, 2019, abandoned.
Application 16/555,316 is a continuation of application No. 15/705,976, filed on Sep. 15, 2017, granted, now 10,438,397, issued on Oct. 8, 2019.
Prior Publication US 2024/0054715 A1, Feb. 15, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G06T 15/06 (2011.01); G06T 15/00 (2011.01); G06T 15/20 (2011.01); G06T 15/30 (2011.01); G06T 15/40 (2011.01); G06T 15/60 (2006.01); G06T 17/00 (2006.01)
CPC G06T 15/06 (2013.01) [G06T 15/005 (2013.01); G06T 15/20 (2013.01); G06T 15/30 (2013.01); G06T 15/40 (2013.01); G06T 15/60 (2013.01); G06T 17/005 (2013.01); G06T 2210/21 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A ray tracing unit for processing a 3D scene comprising:
intersection testing logic configured to perform intersection testing by traversing a viewpoint-dependent reduced acceleration structure, wherein the intersection testing logic is configured to emit a ray into a further acceleration structure and traverse the further acceleration structure, if the traversal of the viewpoint-dependent reduced acceleration structure results in a miss for the ray, wherein the further acceleration structure is a hierarchical acceleration structure.