Surface Mesh Smoothing Flag
Surface mesh smoothing flag is set to On by default.
This provides you with an option (Surface mesh smooth level) for setting the level of surface mesh smoothing. Setting this value to zero turns off the smoothing and this results in a mesh that will not meet any specified shape metric for the mesh.
Higher values result in more smoothing and only little change will be seen if the smooth level is greater than five. The default is set to three.