Frequency Based Radiance Cache for Rendering Animations

Dubouchet, Renaud Adrien; Belcour, Laurent; Nowrouzezahrai, Derek

Frequency Based Radiance Cache for Rendering Animations

Files

041-053.pdf (47.58 MB)

Date

2017

Authors

Dubouchet, Renaud Adrien
Belcour, Laurent
Nowrouzezahrai, Derek

Publisher

The Eurographics Association

Abstract

We propose a method to render animation sequences with direct distant lighting that only shades a fraction of the total pixels. We leverage frequency-based analyses of light transport to determine shading and image sampling rates across an animation using a samples cache. To do so, we derive frequency bandwidths that account for the complexity of distant lights, visibility, BRDF, and temporal coherence during animation. We finaly apply a cross-bilateral filter when rendering our final images from sparse sets of shading points placed according to our frequency-based oracles (generally < 25% of the pixels, per frame).

        @inproceedings{10.2312:sre.20171193
,
booktitle = {Eurographics Symposium on Rendering - Experimental Ideas & Implementations
},
editor = {Matthias Zwicker and Pedro Sander
},
title = {{Frequency Based Radiance Cache for Rendering Animations
}},
author = {Dubouchet, Renaud Adrien and 
Belcour, Laurent and 
Nowrouzezahrai, Derek
},
year = {2017
},
publisher = {The Eurographics Association
},
ISSN = {1727-3463
},
ISBN = {978-3-03868-045-1
},
DOI = {10.2312/sre.20171193
}
}