The Split Grid - A Hierarchical 1D-Grid-based Acceleration Data Structure for Ray Tracing
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Date
2014
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
Abstract
We present a new acceleration structure for ray tracing called the Split Grid. Combining concepts of hierarchical grids, kd-trees and Bounding Volume Hierarchies (BVHs), our approach is based on the idea of nesting 1D-grids. Our proposed acceleration structure is compact in storage, adaptive to the scene geometry and can be traversed using a fast and efficient traversal scheme. We show that the Split Grid is comparable to other current state-of-theart acceleration structures regarding traversal performance and memory footprint. While other data structures usually achieve these levels of performance only due to a complex and expensive construction process (e.g. using the Surface Area Heuristic (SAH) [MB90]), our proposed Split Grid is built with a very simplistic construction scheme which is a major benefit of our approach.
Description
@inproceedings{10.2312:egp.20141067,
booktitle = {Eurographics 2014 - Posters},
editor = {Mathias Paulin and Carsten Dachsbacher},
title = {{The Split Grid - A Hierarchical 1D-Grid-based Acceleration Data Structure for Ray Tracing}},
author = {Bauszat, Pablo and Kastner, Marc Aurel and Eisemann, Martin and Magnor, Marcus},
year = {2014},
publisher = {The Eurographics Association},
ISSN = {1017-4656},
ISBN = {},
DOI = {10.2312/egp.20141067}
}