Parallel Spatial Splits in Bounding Volume Hierarchies
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Date
2016
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
Abstract
Bounding volume hierarchies (BVH) are essential for efficient ray tracing. In time-constrained situations such as real-time or large model visualization, fast construction of BVHs usually compromises hierarchy quality, resulting in reduced rendering speed. We propose a parallel framework for the state-of-the-art BVH construction algorithm with spatial splits (SBVH) that provides highest quality hierarchies within a time frame competitive with lowquality builders optimized for construction speed. We leverage both data and task parallelism to employ threading and single instruction, multiple data (SIMD) capabilities of modern CPUs. Our key contribution is a lightweight memory management and load balancing scheme that maximizes parallel efficiency.
Description
@inproceedings{10.2312:pgv.20161179,
booktitle = {Eurographics Symposium on Parallel Graphics and Visualization},
editor = {Enrico Gobbetti and Wes Bethel},
title = {{Parallel Spatial Splits in Bounding Volume Hierarchies}},
author = {Fuetterling, Valentin and Lojewski, Carsten and Pfreundt, Franz-Josef and Ebert, Achim},
year = {2016},
publisher = {The Eurographics Association},
ISSN = {1727-348X},
ISBN = {978-3-03868-006-2},
DOI = {10.2312/pgv.20161179}
}