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CG
2005
Springer

A simple normal enhancement technique for interactive non-photorealistic renderings

11 years 8 months ago
A simple normal enhancement technique for interactive non-photorealistic renderings
We present a simple technique to improve the perception of an object's shape. 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. r 2004 Elsevier Ltd. All rights reserved.
Paolo Cignoni, Roberto Scopigno, Marco Tarini
Added 15 Dec 2010
Updated 15 Dec 2010
Type Journal
Year 2005
Where CG
Authors Paolo Cignoni, Roberto Scopigno, Marco Tarini
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