[vtkusers] get visible surface

[David Doria]

On Thu, Aug 23, 2012 at 10:41 AM, David E DeMarle
<dave.demarle at kitware.com> wrote:
> Try it now. I made a change to the wiki to turn off antialiasing.
>
> David E DeMarle

Yep, that did the trick (sorry Gerald, I see now that you said to do
that (I guess I wasn't sure how to do it anyway haha, so thanks
David).

So I guess I'm still not sure how anti-aliasing makes it produce
triangles all the way on the other side of the sphere (in my high-res
sphere demo)?

David