Interactive view-dependent rendering of large isosurfaces

  • Authors:
  • Benjamin Gregorski;Mark Duchaineau;Peter Lindstrom;Valerio Pascucci;Kenneth I. Joy

  • Affiliations:
  • Lawrence Livermore National Laboratory and University of California, Davis;Lawrence Livermore National Laboratory;Lawrence Livermore National Laboratory;Lawrence Livermore National Laboratory;University of California, Davis

  • Venue:
  • Proceedings of the conference on Visualization '02
  • Year:
  • 2002

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Abstract

We present an algorithm for interactively extracting and rendering isosurfaces of large volume datasets in a view-dependent fashion. A recursive tetrahedral mesh refinement scheme, based on longest edge bisection, is used to hierarchically decompose the data into a multiresolution structure. This data structure allows fast extraction of arbitrary isosurfaces to within user specified view-dependent error bounds. A data layout scheme based on hierarchical space filling curves provides access to the data in a cache coherent manner that follows the data access pattern indicated by the mesh refinement.