A novel adaptive algorithm of Catmull-Clark subdivision surfaces

Authors:
Wei Zhu;Jinjin Zheng;Hongjun Zhou;Lianguan Shen
Affiliations:
Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui, P R China;Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui, P R China;National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, P R China;Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui, P R China
Venue:
FSKD'09 Proceedings of the 6th international conference on Fuzzy systems and knowledge discovery - Volume 5
Year:
2009

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Abstract

The character of the subdivision surfaces is that the number of facets grows exponentially with the level of subdivision. A novel adaptive subdivision algorithm based on Catmull-Clark scheme is presented in this paper by calculating the distance smoothness value of the vertices. The new method generates preferable rendering results than the traditional adaptive approaches such as computing a vertex's curvature or distance between the control mesh and their limit surfaces. The new method has obvious geometric meaning, programming simplicity, numerical stability and performs efficiently when applied to the model whose mesh has more sharp features.