Early culling for ray tracing
US11238640B2 · kind B2 · utility
1Cited by
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20Claims
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Key dates
| Filing date | Aug 31, 2020 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Aug 31, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2210/21
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A technique for performing ray tracing operations is provided. The technique includes reading descendant-shared type metadata for a non-leaf node of a bounding volume hierarchy; identifying one or more culling types for a ray-intersection test for a ray; and determining whether to treat the non-leaf node as not intersected based on whether the one or more culling types includes at least one type specified by the descendant-shared type metadata.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.