Real-Time GPU Silhouette Refinement using Adaptively Blended Bezier Patches

Dyken, C., Reimers, M., Seland, J.
Centre of Mathematics for Applications, University of Oslo, Norway
Computer Graphics Forum, Vol. 27, No. 1. (March 2008), pp. 1-12


   title={Real-Time GPU Silhouette Refinement using Adaptively Blended B{‘e}zier Patches},

   author={Dyken, C. and Reimers, M. and Seland, J.},

   booktitle={Computer Graphics Forum},






   organization={Wiley Online Library}


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We present an algorithm for detecting and extracting the silhouette edges of a triangle mesh in real time using Graphical Processing Units (GPUs). We also propose a tessellation strategy for visualizing the mesh with smooth silhouettes through a continuous blend between Bezier patches with varying level of detail. Furthermore, we show how our techniques can be integrated with displacement and normal mapping. We give details on our GPU implementation and provide a performance analysis with respect to mesh size.
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