具有法向控制的分段光滑细分曲面

Proceedings of the 27th annual conference on Computer graphics and interactive techniques Pub Date : 2000-07-01 DOI:10.1145/344779.344841

H. Biermann, A. Levin, D. Zorin

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引用次数: 272

摘要

本文引入了改进的Catmull-Clark和Loop细分规则，克服了原方案的几个问题，即在异常边界顶点处缺乏平滑性和凹角附近的褶皱。此外，我们的规则修改方法允许在边界和内部生成具有规定法线的表面，这大大提高了对表面形状的控制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Piecewise smooth subdivision surfaces with normal control

In this paper we introduce improved rules for Catmull-Clark and Loop subdivision that overcome several problems with the original schemes, namely, lack of smoothness at extraordinary boundary vertices and folds near concave corners. In addition, our approach to rule modification allows the generation of surfaces with prescribed normals, both on the boundary and in the interior, which considerably improves control of the shape of surfaces.

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Proceedings of the 27th annual conference on Computer graphics and interactive techniques

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