Entry Wang:2002:FNM from jgraphtools.bib

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BibTeX entry

@Article{Wang:2002:FNM,
  author =       "Yigang Wang and Bernd Fr{\"o}hlich and Martin
                 G{\"o}bel",
  title =        "Fast Normal Map Generation for Simplified Meshes",
  journal =      j-J-GRAPHICS-TOOLS,
  volume =       "7",
  number =       "4",
  pages =        "69--82",
  year =         "2002",
  CODEN =        "JGTOFD",
  ISSN =         "1086-7651",
  ISSN-L =       "1086-7651",
  bibdate =      "Tue Dec 16 13:47:48 2003",
  bibsource =    "http://www.math.utah.edu/pub/tex/bib/jgraphtools.bib",
  URL =          "http://www.acm.org/jgt/papers/WangFrohlichGobel02/",
  abstract =     "Approximating detailed models with coarse, normal
                 mapped meshes is a very efficient method for real-time
                 rendering of complex objects with fine surface detail.
                 In this paper, we present a new and fast normal map
                 construction algorithm. We scan-convert each triangle
                 of the simplified model, which results in a regularly
                 spaced point set on the surface of each triangle. The
                 original model and all these point samples of the
                 simplified model are rendered from uniformly
                 distributed camera positions. The actual normal map was
                 created by computing the corresponding normals for the
                 point sets. For each point, the normal of the closest
                 point from the high resolution mesh over the set of all
                 camera positions is chosen. Our approach works for
                 general triangle meshes and exploits fully common
                 graphics rendering hardware. Normal map construction
                 times are generally in the range of only a few seconds
                 even for large models. We render our normal-mapped
                 meshes in real-time with a slightly modified version of
                 the standard bump-mapping algorithm. In order to
                 evaluate the approximation error, we investigate the
                 distance and normal errors for normal-mapped meshes.
                 Our investigation of the approximation errors shows
                 that using more than 12 viewpoints does not result in a
                 further improvement in the normal maps for our test
                 cases.",
  acknowledgement = ack-nhfb,
  journal-URL =  "http://www.tandfonline.com/loi/ujgt20",
}

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