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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 12/20/2014)