Information

Abstract

Visualization of three dimensional flow has to overcome a lot of problems to be effective. Among them are occlusion of distant details, lack of directional and depth hints and cluttering. In this paper we present methods which address these problems for realtime graphic representations applicable in virtual environments. We use animated, opacity-mapped streamlines as visualization icon for 3D flow visualization. We present a texture mapping technique to keep the level of texture detail along a streamline nearly constant even when the velocity of the flow varies considerably. An algorithm is described which distributes the dashtubes evenly in space. We apply magic lenses and magic boxes as interaction techniques for investigating densly filled areas without overwhelming the observer with visual detail. Implementation details of these methods and their integration in our virtual environment conclude the paper.

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BibTeX

@techreport{fuhrmann-1998-reaX,
  title =      "Real-TimeTechniques for 3D Flow Visualization",
  author =     "Anton Fuhrmann and Meister Eduard Gr\"{o}ller",
  year =       "1998",
  abstract =   "Visualization of three dimensional flow has to overcome a
               lot of problems to be effective. Among them are occlusion of
               distant details, lack of directional and depth hints and
               cluttering. In this paper we present methods which address
               these problems for realtime graphic representations
               applicable in virtual environments. We use animated,
               opacity-mapped streamlines as visualization icon for 3D flow
               visualization. We present a texture mapping technique to
               keep the level of texture detail along a streamline nearly
               constant even when the velocity of the flow varies
               considerably. An algorithm is described which distributes
               the dashtubes evenly in space. We apply magic lenses and
               magic boxes as interaction techniques for investigating
               densly filled areas without overwhelming the observer with
               visual detail. Implementation details of these methods and
               their integration in our virtual environment conclude the
               paper.",
  month =      may,
  number =     "TR-186-2-98-16",
  address =    "Favoritenstrasse 9-11/E193-02, A-1040 Vienna, Austria",
  institution = "Institute of Computer Graphics and Algorithms, Vienna
               University of Technology ",
  note =       "human contact: technical-report@cg.tuwien.ac.at",
  keywords =   "focussing, virtual reality, texture techniques, flow
               visualization, realtime",
  URL =        "https://www.cg.tuwien.ac.at/research/publications/1998/fuhrmann-1998-reaX/",
}