Smooth Triangulated Mesh

This function smooths a triangulated Mesh / Patch.

Supports accurate curvature flow smoothing. Which smooths in the direction of the normal keeping the edge ratio's the same.
Also supports Laplacian smoothing with inverse vertice-distance based umbrella weights, making the edge lengths more uniform.

Can be used to smooth iso-surface meshes, for scale space and simplification of patches.

Literature:
Mathieu Desbrun et al. "Implicit Faring of Irregular Meshes using Diffusion and Curvature Flow"
Alexander Belyaev. "Curvature Estimation"

Code:
The code is written in Matlab and partly in c-code for speed up reasons.

Comments:
Please leave a comment in case of a bug, like the code, or know a good improvement.