Untransformed display lists in a tile based rendering system
US9953456B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 14, 2016 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Jun 14, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T17/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
3-D rendering systems include a rasterization section that can fetch untransformed geometry, transform geometry and cache data for transformed geometry in a memory. As an example, the rasterization section can transform the geometry into screen space. The geometry can include one or more of static geometry and dynamic geometry. The rasterization section can query the cache for presence of data pertaining to a specific element or elements of geometry, and use that data from the cache, if present, and otherwise perform the transformation again, for actions such as hidden surface removal. The rasterization section can receive, from a geometry processing section, tiled geometry lists and perform the hidden surface removal for pixels within respective tiles to which those lists pertain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.