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Author: Mikael Johansson

Affiliation: Chalmers University of Technology, Sweden

Keyword(s): Real Time Rendering, Occlusion Culling, Hardware Instancing, BIM.

Related Ontology Subjects/Areas/Topics: CAGD/CAD/CAM Systems ; Computer Vision, Visualization and Computer Graphics ; Geometry and Modeling ; Real-Time Rendering ; Rendering ; Shadows, Translucency and Visibility

Abstract: This paper presents an efficient approach for integrating occlusion culling and hardware instancing. The work is primarily targeted at Building Information Models (BIM), which typically share characteristics addressed by these two acceleration techniques separately – high level of occlusion and frequent reuse of building components. Together, these two acceleration techniques complement each other and allows large and complex BIMs to be rendered in real-time. Specifically, the proposed method takes advantage of temporal coherence and uses a lightweight data transfer strategy to provide an efficient hardware instancing implementation. Compared to only using occlusion culling, additional speedups of 1.25x-1.7x is achieved for rendering large BIMs received from real-world projects. These speedups are measured in viewpoints that represents the worst case scenarios in terms of rendering performance when only occlusion culling is utilized.

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Paper citation in several formats:
Johansson, M. (2013). Integrating Occlusion Culling and Hardware Instancing for Efficient Real-time Rendering of Building Information Models. In Proceedings of the International Conference on Computer Graphics Theory and Applications and International Conference on Information Visualization Theory and Applications (VISIGRAPP 2013) - GRAPP; ISBN 978-989-8565-46-4; ISSN 2184-4321, SciTePress, pages 197-206. DOI: 10.5220/0004302801970206

@conference{grapp13,
author={Mikael Johansson.},
title={Integrating Occlusion Culling and Hardware Instancing for Efficient Real-time Rendering of Building Information Models},
booktitle={Proceedings of the International Conference on Computer Graphics Theory and Applications and International Conference on Information Visualization Theory and Applications (VISIGRAPP 2013) - GRAPP},
year={2013},
pages={197-206},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004302801970206},
isbn={978-989-8565-46-4},
issn={2184-4321},
}

TY - CONF

JO - Proceedings of the International Conference on Computer Graphics Theory and Applications and International Conference on Information Visualization Theory and Applications (VISIGRAPP 2013) - GRAPP
TI - Integrating Occlusion Culling and Hardware Instancing for Efficient Real-time Rendering of Building Information Models
SN - 978-989-8565-46-4
IS - 2184-4321
AU - Johansson, M.
PY - 2013
SP - 197
EP - 206
DO - 10.5220/0004302801970206
PB - SciTePress

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