EuroVisShort2012
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Browsing EuroVisShort2012 by Subject "Categories and Subject Descriptors (according to ACM CCS): I.3.5 [Computer Graphics]: Computational Geometry and Object Modeling-Boundary representations"
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Item Fast Visualization of Gaussian Density Surfaces for Molecular Dynamics and Particle System Trajectories(The Eurographics Association, 2012) Krone, Michael; Stone, John; Ertl, Thomas; Schulten, Klaus; Miriah Meyer and Tino WeinkaufsWe present an efficient algorithm for computation of surface representations enabling interactive visualization of large dynamic particle data sets. Our method is based on a GPU-accelerated data-parallel algorithm for computing a volumetric density map from Gaussian weighted particles. The algorithm extracts an isovalue surface from the computed density map, using fast GPU-accelerated Marching Cubes. This approach enables interactive frame rates for molecular dynamics simulations consisting of millions of atoms. The user can interactively adjust the display of structural detail on a continuous scale, ranging from atomic detail for in-depth analysis, to reduced detail visual representations suitable for viewing the overall architecture of molecular complexes. The extracted surface is useful for interactive visualization, and provides a basis for structure analysis methods.