简单几何约束变形与细分曲面的形状编辑

将简单几何约束变形与Catmull-Clark细分规则相结合,首先,在当前细分层次网格上按要求施加相关的约束变形特征以及设定变形区域; 然后,由细分规则得到这些约束变形特征及变形区域在随后细分各层次网格之间的传递映射关系;最后,在所要求的细分层次网格上重新作用简单几何约束变形,得到最终变形结果.试验证明,此编辑变形算法简单直观,具有良好的实时交互性,同时在整个细分过程中,保证满足相应的约束要求,未来可以考虑将其应用于CAD/CAM和计算机动画中.

Simple geometric constrained deformation and shape editing of subdivision surfaces

Combining the simple geometric constrained deformation with the Catmull-Clark subdivision algorithm,the deformation process included three steps.Firstly,some interrelated constrained deforming features and the range of deformation were designed and put on the given subdivision level mesh of an object.Secondly,according to the subdivision algorithm,the image of the constraint deforming features and the range of deformation at successive subdivision levels were resolved.At last,the simple geometric constrai-n...