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Authors: Stefan Maas and Heinrich Martin Overhoff

Affiliation: Westfälische Hochschule, Germany

Keyword(s): OpenGLSL, Raycasting, GPU, Volume Rendering.

Related Ontology Subjects/Areas/Topics: Biomedical Visualization and Applications ; Computer Vision, Visualization and Computer Graphics ; Gpu-Based Visualization ; Spatial Data Visualization ; Volume Visualization

Abstract: Real time volume rendering of medical datasets using raycasting on graphics processing units (GPUs) is a common technique. Since more than 10 years there are two established approaches for realizing GPU ray casting: multi-pass (Kruger and Westermann, 2003) and single-pass (Röttger, et al., 2003). But the required parameters to choose the optimal raycasting technique for a given application are still unknown. To solve this issue both raycasting techniques were implemented for different raycasting types using OpenGLSL vertex and fragment shaders. The different techniques and types were compared regarding execution times. The results of this comparison show that there is no technique faster in general. The higher the computational load the more indicates the use of the multi-pass technique.

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Paper citation in several formats:
Maas, S. and Overhoff, H. (2015). OpenGLSL-based Raycasting - Comparison of Execution Durations of Multi-pass vs. Single-pass Technique. In Proceedings of the 6th International Conference on Information Visualization Theory and Applications (VISIGRAPP 2015) - IVAPP; ISBN 978-989-758-088-8; ISSN 2184-4321, SciTePress, pages 307-310. DOI: 10.5220/0005344703070310

@conference{ivapp15,
author={Stefan Maas. and Heinrich Martin Overhoff.},
title={OpenGLSL-based Raycasting - Comparison of Execution Durations of Multi-pass vs. Single-pass Technique},
booktitle={Proceedings of the 6th International Conference on Information Visualization Theory and Applications (VISIGRAPP 2015) - IVAPP},
year={2015},
pages={307-310},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005344703070310},
isbn={978-989-758-088-8},
issn={2184-4321},
}

TY - CONF

JO - Proceedings of the 6th International Conference on Information Visualization Theory and Applications (VISIGRAPP 2015) - IVAPP
TI - OpenGLSL-based Raycasting - Comparison of Execution Durations of Multi-pass vs. Single-pass Technique
SN - 978-989-758-088-8
IS - 2184-4321
AU - Maas, S.
AU - Overhoff, H.
PY - 2015
SP - 307
EP - 310
DO - 10.5220/0005344703070310
PB - SciTePress

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