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Authors:S. Grottel: Visualisation Research Center (VISUS), University of Stuttgart, Germany
G. Reina: Visualisation Research Center (VISUS), University of Stuttgart, Germany
T. Zauner: Institute for Computational Physics, University of Stuttgart, Germany
R. Hilfer: Institute for Computational Physics, University of Stuttgart, Germany
T. Ertl: Visualisation Research Center (VISUS), University of Stuttgart, Germany
Publication title:Particle-based Rendering for Porous Media
Conference:Proceedings of SIGRAD 2010: Content aggregation and visualization, November 25–26, 2010, Västerås, Sweden
Publication type: Abstract and Fulltext
Issue:052
Article No.:008
Abstract:Particle-based modeling and simulation of granular or porous media is a widely-used tool in physics and material science to study behavior like fracture and failure under external force. Classical models use spherical particles. However, up to 108 polyhedral-shaped particles are required to achieve realistic results comparable to laboratory experiments. As contact points and exposed surfaces play important roles for the analysis, a meaningful visualization aiding the numeric analysis has to represent the exact particle shapes. For particle-based data sets with spherical particles, ray tracing has been established as the state-of-the-art approach yielding high rendering performance, optimal visual quality and good scalability. However, when rendering polyhedral-shaped particles, there is no issue with visual quality comparing polygon-based rendering approaches and ray casting, whereas the polygon-based approaches cause significantly lower fragment load. The paper at hand investigates the advantages and drawbacks of both approaches by analyzing the performance of state-of-the-art rendering methods employing vertex-buffer objects, hardware-supported instancing, geometry shader, and GPU-based ray casting.

Categories and Subject Descriptors (according to ACM CCS): I.3.5 [Computer Graphics]: Computational Geometry and Object Modeling—Curve, surface, solid, and object representations; I.3.8 [Computer Graphics]: Computational Geometry and Object Modeling—Applications.

Language:English
Year:2010
No. of pages:7
Pages:45-51
ISBN:978-91-7393-281-3
Series:Linköping Electronic Conference Proceedings
ISSN (print):1650-3686
ISSN (online):1650-3740
File:http://www.ep.liu.se/ecp/052/008/ecp10052008.pdf
Available:2010-11-29
Publisher:Linköping University Electronic Press, Linköpings universitet

REFERENCE TO THIS PAGE
S. Grottel, G. Reina, T. Zauner, R. Hilfer, T. Ertl (2010). Particle-based Rendering for Porous Media, Proceedings of SIGRAD 2010: Content aggregation and visualization, November 25–26, 2010, Västerås, Sweden http://www.ep.liu.se/ecp_article/index.en.aspx?issue=052;article=008 (accessed 9/17/2014)