Multi-scale Method for Adaptive Mesh Editing Based on Rigidity Estimation

We present a multi-scale approach for direct manipulation of mesh models based on pre-estimated rigidity. Our method enhances space deformation by constructing a novel deformable structure with several layers of deformation graphs which have different densities of control nodes. An appropriate deformation graph is dynamically chosen according to the handle configuration. Such handle-aware strategy, together with special treatment for graph nodes, brings great improvement on both editing effect and performance. We demonstrate how to obtain a reduced deformable model by generating lattice structure and how to estimate the rigidity of mesh surface. Based on the rigidity analysis, we adjust the granularity of the computation which helps to speed the solving process. The experimental results show that our method preserves detailed features well and provides fast design of pleasing poses as the complexity of computing is confined within a limited range.