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Authors: K. Keul ; T. Koß ; F. L. Schröder and S. Müller

Affiliation: Institute for Computational Visualistics, University of Koblenz-Landau and Germany

Keyword(s): Visualization, Ray Tracing, Data Structures.

Related Ontology Subjects/Areas/Topics: Computer Vision, Visualization and Computer Graphics ; High-Performance Computing and Parallel Rendering ; Rendering ; Rendering Algorithms

Abstract: We present a method for combining two-level data structures and directional precomputation based on the Line Space (LS). While previous work has shown that LS precomputation significantly improves ray traversal performance of typical spatial data structures, it suffers from high memory consumption and low image quality due to internal approximations. Our method combines this technique with two-level BVHs, where the LS is integrated within second-level object BVHs. The advantages are, among others, optimizations in terms of approximation accuracy and required memory. In addition, we propose a method to use an accurate BVH in combination with the fast approximation-based LS for path tracing in order to further reduce image errors of the LS while still benefitting from its gain in performance.

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Paper citation in several formats:
Keul, K.; Koß, T.; Schröder, F. and Müller, S. (2019). Combining Two-level Data Structures and Line Space Precomputations to Accelerate Indirect Illumination. In Proceedings of the 14th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2019) - GRAPP; ISBN 978-989-758-354-4; ISSN 2184-4321, SciTePress, pages 228-235. DOI: 10.5220/0007345902280235

@conference{grapp19,
author={K. Keul. and T. Koß. and F. L. Schröder. and S. Müller.},
title={Combining Two-level Data Structures and Line Space Precomputations to Accelerate Indirect Illumination},
booktitle={Proceedings of the 14th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2019) - GRAPP},
year={2019},
pages={228-235},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007345902280235},
isbn={978-989-758-354-4},
issn={2184-4321},
}

TY - CONF

JO - Proceedings of the 14th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2019) - GRAPP
TI - Combining Two-level Data Structures and Line Space Precomputations to Accelerate Indirect Illumination
SN - 978-989-758-354-4
IS - 2184-4321
AU - Keul, K.
AU - Koß, T.
AU - Schröder, F.
AU - Müller, S.
PY - 2019
SP - 228
EP - 235
DO - 10.5220/0007345902280235
PB - SciTePress

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