Adaptive Numerical Cumulative Distribution Functions for Efficient Importance Sampling
| dc.contributor.author | Lawrence, Jason | en_US |
| dc.contributor.author | Rusinkiewicz, Szymon | en_US |
| dc.contributor.author | Ramamoorthi, Ravi | en_US |
| dc.contributor.editor | Kavita Bala and Philip Dutre | en_US |
| dc.date.accessioned | 2014-01-27T14:48:20Z | |
| dc.date.available | 2014-01-27T14:48:20Z | |
| dc.date.issued | 2005 | en_US |
| dc.description.abstract | As image-based surface reflectance and illumination gain wider use in physically-based rendering systems, it is becoming more critical to provide representations that allow sampling light paths according to the distribution of energy in these high-dimensional measured functions. In this paper, we apply algorithms traditionally used for curve approximation to reduce the size of a multidimensional tabulated Cumulative Distribution Function (CDF) by one to three orders of magnitude without compromising its fidelity. These adaptive representations enable new algorithms for sampling environment maps according to the local orientation of the surface and for multiple importance sampling of image-based lighting and measured BRDFs. | en_US |
| dc.description.seriesinformation | Eurographics Symposium on Rendering | en_US |
| dc.identifier.isbn | 3-905673-23-1 | en_US |
| dc.identifier.issn | 1727-3463 | en_US |
| dc.identifier.uri | https://doi.org/10.2312/EGWR/EGSR05/011-020 | en_US |
| dc.publisher | The Eurographics Association | en_US |
| dc.subject | Categories and Subject Descriptors (according to ACM CCS): I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism I.3.6 [Computer Graphics]: Methodology and Techniques | en_US |
| dc.title | Adaptive Numerical Cumulative Distribution Functions for Efficient Importance Sampling | en_US |
Files
Original bundle
1 - 5 of 5