Clustered Pre-convolved Radiance Caching
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Date
2014
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
Abstract
We present a scalable method for rendering indirect illumination in diffuse and glossy scenes. Our method builds on pre-convolved radiance caching (RC), which enables reusing the incident radiance computed at a surface point for its neighborhood. Our contributions include efficient and robust generation of these RCs based on a pre-filtered voxel representation that stores scene-geometry and surface illumination. In addition, we describe a distribution strategy that places the RCs according to screen-space clusters to ensure all pixels have valid radiance data when evaluating indirect illumination. The results demonstrate the scalability of our method and analyze the relation between render quality, surface glossiness and computation time, which depends on the number of caches and their resolution.
Description
@inproceedings{:10.2312/pgv.20141081https::/diglib.eg.org/handle/10.2312/pgv.20141081.025-032,
booktitle = {Eurographics Symposium on Parallel Graphics and Visualization},
editor = {Margarita Amor and Markus Hadwiger},
title = {{Clustered Pre-convolved Radiance Caching}},
author = {Rehfeld, Hauke and Zirr, Tobias and Dachsbacher, Carsten},
year = {2014},
publisher = {The Eurographics Association},
ISSN = {1727-348X},
ISBN = {978-3-905674-59-0},
DOI = {/10.2312/pgv.20141081https://diglib.eg.org/handle/10.2312/pgv.20141081.025-032}
}