Grid-Free Out-Of-Core Voxelization to Sparse Voxel Octrees on GPU
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Date
2015
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
ACM Siggraph
Abstract
In this paper, we present the first grid-free, out-of-core GPU voxelization method. Our method combines efficient parallel triangle voxelization on GPU with out-of-core technologies in order to allow the processing of scenes with large triangle counts at a high resolution. We directly generate the voxelized data in a sparse voxel octree (SVO) representation, without any intermediate grid structure (''grid-free''). We apply triangle preprocessing and avoid atomic operations, thus leading to an optimized balanced GPU workload and efficient parallel triangle processing. Compared to existing out-of-core CPU approaches, we manage a proper handling of voxel attributes, i.e. all triangle attributes contributing to a voxel are accessible when calculating the voxel attribute. We test and compare our approach to state-of-the-art methods and demonstrate its viability in terms of speed, input triangle count, resolution and output quality.
Description
@inproceedings{10.1145:2790060.2790067,
booktitle = {High-Performance Graphics},
editor = {Petrik Clarberg and Elmar Eisemann},
title = {{Grid-Free Out-Of-Core Voxelization to Sparse Voxel Octrees on GPU}},
author = {Pätzold, Martin and Kolb, Andreas},
year = {2015},
publisher = {ACM Siggraph},
ISBN = {978-1-4503-3707-6},
DOI = {10.1145/2790060.2790067}
}