Space-Time Hierarchical Occlusion Culling for Micropolygon Rendering with Motion Blur
| dc.contributor.author | Boulos, Solomon | en_US |
| dc.contributor.author | Luong, Edward | en_US |
| dc.contributor.author | Fatahalian, Kayvon | en_US |
| dc.contributor.author | Moreton, Henry | en_US |
| dc.contributor.author | Hanrahan, Pat | en_US |
| dc.contributor.editor | Michael Doggett and Samuli Laine and Warren Hunt | en_US |
| dc.date.accessioned | 2013-10-28T10:21:21Z | |
| dc.date.available | 2013-10-28T10:21:21Z | |
| dc.date.issued | 2010 | en_US |
| dc.description.abstract | Occlusion culling using a traditional hierarchical depth buffer, or z-pyramid, is less effective when rendering with motion blur. We present a new data structure, the tz-pyramid, that extends the traditional z-pyramid to represent scene depth values in time. This temporal information improves culling efficacy when rendering with motion blur. The tz-pyramid allows occlusion culling to adapt to the amount of scene motion, providing a balance of high efficacy with large motion and low cost in terms of depth comparisons when motion is small. Compared to a traditional z-pyramid, using the tz-pyramid for occlusion culling reduces the number of micropolygons shaded by up to 3.5x. In addition to better culling, the tz-pyramid reduces the number of depth comparisons by up to 1.4x. | en_US |
| dc.description.seriesinformation | High Performance Graphics | en_US |
| dc.identifier.isbn | 978-3-905674-26-2 | en_US |
| dc.identifier.issn | 2079-8687 | en_US |
| dc.identifier.uri | https://doi.org/10.2312/EGGH/HPG10/011-018 | en_US |
| dc.publisher | The Eurographics Association | en_US |
| dc.title | Space-Time Hierarchical Occlusion Culling for Micropolygon Rendering with Motion Blur | en_US |