The Community for Technology Leaders
Green Image
Issue No. 06 - November/December (2010 vol. 16)
ISSN: 1077-2626
pp: 1533-1540
Stefan Auer , Technische Universität München
Roland Fraedrich , Technische Universität München
Rüdiger Westermann , Technische Universität München
ABSTRACT
High quality volume rendering of SPH data requires a complex order-dependent resampling of particle quantities along the view rays. In this paper we present an efficient approach to perform this task using a novel view-space discretization of the simulation domain. Our method draws upon recent work on GPU-based particle voxelization for the efficient resampling of particles into uniform grids. We propose a new technique that leverages a perspective grid to adaptively discretize the view-volume, giving rise to a continuous level-of-detail sampling structure and reducing memory requirements compared to a uniform grid. In combination with a level-of-detail representation of the particle set, the perspective grid allows effectively reducing the amount of primitives to be processed at run-time. We demonstrate the quality and performance of our method for the rendering of fluid and gas dynamics SPH simulations consisting of many millions of particles.
INDEX TERMS
Particle visualization, volume rendering, ray-casting, GPU resampling
CITATION
Stefan Auer, Roland Fraedrich, Rüdiger Westermann, "Efficient High-Quality Volume Rendering of SPH Data", IEEE Transactions on Visualization & Computer Graphics, vol. 16, no. , pp. 1533-1540, November/December 2010, doi:10.1109/TVCG.2010.148
84 ms
(Ver )