Title:
METHODS AND APPARATUS FOR ORDER-INDEPENDENT OCCLUSION COMPUTATIONS
Document Type and Number:
WIPO Patent Application WO/2021/247190
Kind Code:
A3
Abstract:
The present disclosure relates to methods and apparatus for graphics processing. The apparatus can determine geometry information for each of a plurality of primitives associated with a viewpoint in a scene. The apparatus can also calculate at least one of surface information and disocclusion information based on the geometry information for each of the plurality of primitives, where the surface information and the disocclusion information may be associated with a volumetric grid based on a viewing area corresponding to the viewpoint. Also, the apparatus can calculate visibility information for each of the plurality of primitives based on at least one of the surface information and the disocclusion information, where the visibility information may be associated with the volumetric grid. The apparatus can also determine whether each of the plurality of primitives is visible based on the visibility information for each of the plurality of primitives.
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Inventors:
VOGLREITER PHILIP (US)
SCHMALSTIEG DIETER (US)
STEINBERGER MARKUS (US)
SCHMALSTIEG DIETER (US)
STEINBERGER MARKUS (US)
Application Number:
PCT/US2021/031053
Publication Date:
March 03, 2022
Filing Date:
May 06, 2021
Export Citation:
Assignee:
QUALCOMM INC (US)
International Classes:
G06T15/00
Foreign References:
| US20190213784A1 | 2019-07-11 | |||
| US8004521B2 | 2011-08-23 | |||
| US20160171745A1 | 2016-06-16 |
Other References:
GERNOT SCHAUFLER ET AL: "Conservative volumetric visibility with occluder fusion", COMPUTER GRAPHICS. SIGGRAPH 2000 CONFERENCE PROCEEDINGS. NEW ORLEANS, LA, JULY 23 - 28, 2000; [COMPUTER GRAPHICS PROCEEDINGS. SIGGRAPH], NEW YORK, NY : ACM, US, 1 July 2000 (2000-07-01), pages 229 - 238, XP058374780, ISBN: 978-1-58113-208-3, DOI: 10.1145/344779.344886
JIHAD EL-SANA ET AL: "Integrating occlusion culling with view-dependent rendering", VISUALIZATION 2001; [ANNUAL IEEE CONFERENCE ON VISUALIZATION], IEEE COMPUTER SOCIETY PRESS, 10662 LOS VAQUEROS CIRCLE PO BOX 3014 LOS ALAMITOS, CA 90720-1264 USA, 21 October 2001 (2001-10-21), pages 371 - 378, XP058283266, ISSN: 1070-2385
JIHAD EL-SANA ET AL: "Integrating occlusion culling with view-dependent rendering", VISUALIZATION 2001; [ANNUAL IEEE CONFERENCE ON VISUALIZATION], IEEE COMPUTER SOCIETY PRESS, 10662 LOS VAQUEROS CIRCLE PO BOX 3014 LOS ALAMITOS, CA 90720-1264 USA, 21 October 2001 (2001-10-21), pages 371 - 378, XP058283266, ISSN: 1070-2385
Attorney, Agent or Firm:
HODGES, Jonas et al. (US)
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