[Paraview] Contours of unstructured grid paraview 3 vs paraview 4

[Greenwood, Michael]

Hi I've upgraded to paraview 4 and now when building contours of my 3D unstructured grid, the contours are pixelated.  This was not the case in 3, and when you look at a slice of the contour overlayed with a slice of the volume data it is obvious that the contour in paraview 4 seems to be "hugging" the boundaries of my mesh instead of interpolating through it.  How can I get my nice smooth contours I had in version 3?

Thanks
[cid:image001.png at 01D07793.BBE3F100]
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://public.kitware.com/pipermail/paraview/attachments/20150415/66e4651d/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.png
Type: image/png
Size: 62758 bytes
Desc: image001.png
URL: <http://public.kitware.com/pipermail/paraview/attachments/20150415/66e4651d/attachment.png>