Progressive Volume Rendering of Large Unstructured Grids

  • Authors:
  • Steven P. Callahan;Louis Bavoil;Valerio Pascucci;Claudio T. Silva

  • Affiliations:
  • -;-;IEEE;IEEE

  • Venue:
  • IEEE Transactions on Visualization and Computer Graphics
  • Year:
  • 2006

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Abstract

We describe a new progressive technique that allows real-time rendering of extremely large tetrahedral meshes.Our approach uses a client-server architecture to incrementally stream portions of the mesh from a server to a client which refines the quality of the approximate rendering until it converges to a full quality rendering. The results of previous steps are re-used in each subsequent refinement, thus leading to an efficient rendering.Our novel approach keeps very little geometry on the client and works by refining a set of rendered images at each step.Our interactive representation of the dataset is efficient, light-weight, and high quality.We present a framework for the exploration of large datasets stored on a remote server with a thin client that is capable of rendering and managing full quality volume visualizations.