Hierarchical Z-culling (HiZ) optimization for texture-dependent discard operations
US10540808B2 · kind B2 · utility
2Cited by
1References
25Claims
0Family size
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Key dates
| Filing date | Sep 16, 2016 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Sep 16, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2210/62
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus relating to techniques for provision of hierarchical Z-Culling (HiZ) optimization for texture-dependent discard operations are described. In an embodiment, a processor performs one or more operations (such as HiZ or Hierarchical Stencil test) on depth data of an image tile in response to a determination that texture space bounds of the image tile is fully opaque. The processor performs the one or more operations regardless of whether a discard operation is enabled. Other embodiments are also disclosed and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.