Real-Time Occlusion Culling with a Lazy Occlusion Grid
| dc.contributor.author | Hey, Heinrich | en_US |
| dc.contributor.author | Tobler, Robert F. | en_US |
| dc.contributor.author | Purgathofer, Werner | en_US |
| dc.contributor.editor | S. J. Gortle and K. Myszkowski | en_US |
| dc.date.accessioned | 2014-01-27T13:49:13Z | |
| dc.date.available | 2014-01-27T13:49:13Z | |
| dc.date.issued | 2001 | en_US |
| dc.description.abstract | We present a new conservative image-space occlusion culling method to increase the rendering speed of very large general scenes on today's available hardware without time-expensive preprocessing. The method is based on a low-resolution grid upon a conventional z-buffer. The occlusion information in the grid is updated in a lazy manner. In comparison to related methods this significantly reduces the number of pixels that have to be read from the z-buffer. The grid allows fast decisions if an object is occluded or potentially visible. It is used together with a bounding volume hierarchy that is traversed in a front-to-back order and which allows to cull large parts of the scene at once. A special front-to-back traversal is used if no pixel-level query for the furthest z-value of an image area is available. We show that the method works efficiently on today's available hardware and we compare it with related methods. | en_US |
| dc.description.seriesinformation | Eurographics Workshop on Rendering | en_US |
| dc.identifier.isbn | 3-211-83709-4 | en_US |
| dc.identifier.issn | 1727-3463 | en_US |
| dc.identifier.uri | https://doi.org/10.2312/EGWR/EGWR01/217-221 | en_US |
| dc.publisher | The Eurographics Association | en_US |
| dc.title | Real-Time Occlusion Culling with a Lazy Occlusion Grid | en_US |
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