T-SAH: Animation Optimized Bounding Volume Hierarchies
| dc.contributor.author | Bittner, JirĂ | en_US |
| dc.contributor.author | Meister, Daniel | en_US |
| dc.contributor.editor | Olga Sorkine-Hornung and Michael Wimmer | en_US |
| dc.date.accessioned | 2015-04-16T07:45:52Z | |
| dc.date.available | 2015-04-16T07:45:52Z | |
| dc.date.issued | 2015 | en_US |
| dc.description.abstract | We propose a method for creating a bounding volume hierarchy (BVH) that is optimized for all frames of a given animated scene. The method is based on a novel extension of surface area heuristic to temporal domain (T-SAH). We perform iterative BVH optimization using T-SAH and create a single BVH accounting for scene geometry distribution at different frames of the animation. Having a single optimized BVH for the whole animation makes our method extremely easy to integrate to any application using BVHs, limiting the per-frame overhead only to refitting the bounding volumes.We evaluated the T-SAH optimized BVHs in the scope of real-time GPU ray tracing. We demonstrate, that our method can handle even highly complex inputs with large deformations and significant topology changes. The results show, that in a vast majority of tested scenes our method provides significantly better run-time performance than traditional SAH and also better performance than GPU based per-frame BVH rebuild. | en_US |
| dc.description.number | 2 | en_US |
| dc.description.sectionheaders | Real-Time Rendering & Quantization | en_US |
| dc.description.seriesinformation | Computer Graphics Forum | en_US |
| dc.description.volume | 34 | en_US |
| dc.identifier.doi | 10.1111/cgf.12581 | en_US |
| dc.identifier.pages | 527-536 | en_US |
| dc.identifier.uri | https://doi.org/10.1111/cgf.12581 | en_US |
| dc.publisher | The Eurographics Association and John Wiley & Sons Ltd. | en_US |
| dc.subject | I.3.7 [Computer Graphics] | en_US |
| dc.subject | Raytracing | en_US |
| dc.subject | I.3.5 [Computer Graphics] | en_US |
| dc.subject | Object Hierarchies | en_US |
| dc.subject | I.3.7 [Computer Graphics] | en_US |
| dc.subject | Three Dimensional Graphics and Realism | en_US |
| dc.title | T-SAH: Animation Optimized Bounding Volume Hierarchies | en_US |