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BibTeX entry
@Article{Thurmer:1998:CVN,
author = "Grit Th{\"u}rmer and Charles A. W{\"u}thrich",
title = "Computing Vertex Normals from Polygonal Facets",
journal = j-J-GRAPHICS-TOOLS,
volume = "3",
number = "1",
pages = "43--46",
year = "1998",
CODEN = "JGTOFD",
ISSN = "1086-7651",
ISSN-L = "1086-7651",
bibdate = "Thu Oct 12 17:08:13 2000",
bibsource = "http://www.acm.org/jgt/issues.html;
http://www.math.utah.edu/pub/tex/bib/jgraphtools.bib",
URL = "http://www.acm.org/jgt/papers/ThurmerWuthrich98/",
abstract = "The method most commonly used to estimate the normal
vector at a vertex of a polygonal surface averages the
normal vectors of the facets incident to the vertex
considered. The vertex normal obtained in this way may
vary depending on the tessellation of the polygonal
surface since the normal of each incident facet
contributes equally to the normal in the vertex. To
overcome this drawback, we extend the method so that it
also incorporates the geometric contribution of each
facet, consider the angle under which a facet is
incident to the vertex in question.",
acknowledgement = ack-nhfb,
journal-URL = "http://www.tandfonline.com/loi/ujgt20",
}
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