@techreport{Cignoni:2003:SNE,
optpostscript = {},
number = {2003-TR-18},
optnote = {},
author = {Paolo Cignoni and Roberto Scopigno and Marco Tarini},
optkey = {},
optannote = {},
opttype = {},
url = {http://dienst.isti.cnr.it/Dienst/UI/2.0/Describe/ercim.cnr.isti/2003-TR-18},
address = {Pisa, Italy},
localfile = {papers/Cignoni.2003.SNE.pdf},
optmonth = {},
optciteseer = {},
optdoi = {},
optwww = {},
title = {{A} {S}imple {N}ormal {E}nhancement {T}echnique for {I}nteractive
{N}on-photorealistic {R}enderings},
abstract = {We present a simple technique to improve the perception of the
shape of an object. Bump mapping is well-known in the computer
graphics community for providing the impression of small-scale
geometrical features, which are not explicitly modelled. Here, we
propose a similar approach (variation of normals) for the purpose
of enhancing the perception of a given geometry. Our approach is
based on a simple modification of the surface normals in order to
enhance the geometric features of the object during the rendering.
The enhanced normals produced by this approach can be used in any
rendering technique. The technique presented is particularly well
suited to improve the rendering of mechanical parts where common
straightforward shading techniques can often generate shading
ambiguities.},
year = {2003},
institution = {Istituto di Scienza e Tecnologia dell’Informazione, Consiglio
Nazionale delle Ricerche},
}
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