[Paraview] 3D contour smoothness

[Philipp E]

Hello everyone,

after extensive search I was desperate enough to post on this list:

It appears that the surface smoothing algorithm of the contour filter
does not work as "aggressive" as in older version (3.14.1 was the last
one we found to do so). As an example I prepared this two screenshots,
VTK data are scalars on a structured grid (200x100x100), legacy format.
(An additional call of the "smooth" filter does not help.)

3.14.1
http://s7.directupload.net/images/140919/euadfvko.png
4.0.RC1
http://s14.directupload.net/images/140919/84y689mi.png

Both versions are running with the shipped settings. Since the effect
could be reproduced on several workstations, we are wondering whether
there has been an (undocumented?) change in the filter mechanism or some
option we/setting/data problem we are not aware of.

Kind regards and thanks in advance
Philipp Engels.