Practical Product Sampling for Single Scattering in Media
| dc.contributor.author | Villeneuve, Keven | en_US |
| dc.contributor.author | Gruson, Adrien | en_US |
| dc.contributor.author | Georgiev, Iliyan | en_US |
| dc.contributor.author | Nowrouzezahrai, Derek | en_US |
| dc.contributor.editor | Bousseau, Adrien and McGuire, Morgan | en_US |
| dc.date.accessioned | 2021-07-12T12:13:05Z | |
| dc.date.available | 2021-07-12T12:13:05Z | |
| dc.date.issued | 2021 | |
| dc.description.abstract | Efficient Monte-Carlo estimation of volumetric single scattering remains challenging due to various sources of variance, including transmittance, phase-function anisotropy, geometric cosine foreshortening, and squared-distance fall-off. We propose several complementary techniques to importance sample each of these terms and their product. First, we introduce an extension to equi-angular sampling to analytically account for the foreshortening at point-normal emitters. We then include transmittance and phase function via Taylor-series expansion and/or warp composition. Scaling to complex mesh emitters is achieved through an adaptive tree-splitting scheme. We show improved performance over state-of-the-art baselines in a diversity of scenarios. | en_US |
| dc.description.sectionheaders | Sampling | |
| dc.description.seriesinformation | Eurographics Symposium on Rendering - DL-only Track | |
| dc.identifier.doi | 10.2312/sr.20211290 | |
| dc.identifier.isbn | 978-3-03868-157-1 | |
| dc.identifier.issn | 1727-3463 | |
| dc.identifier.pages | 55-60 | |
| dc.identifier.uri | https://doi.org/10.2312/sr.20211290 | |
| dc.identifier.uri | https://diglib.eg.org:443/handle/10.2312/sr20211290 | |
| dc.publisher | The Eurographics Association | en_US |
| dc.subject | Computing methodologies --> Rendering | |
| dc.title | Practical Product Sampling for Single Scattering in Media | en_US |
Files
Original bundle
1 - 1 of 1