As mentioned in Section
27.13.1, skewness-based smoothing should usually be alternated with face swapping. Guidelines for this procedure are presented here.
Perform four smoothing iterations using a
Minimum Skewness of 0.8 for 3D, or 0.4 for 2D.
Swap until the
Number Swapped decreases to 0.
For 3D meshes, decrease the
Minimum Skewness to 0.6 and repeat the smoothing/swapping procedure.
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