Hy everybody, I am trying to use vtkPointPicker, but I noticed that
sometimes, when I pick some point on an object, the returned point is
the "back one", that is, assuming a closed surface, the second point
along the ray. I noticed that the tolerance has no effect on this
behavior.<br>
Can somebody give me a hint on why this is happening?<br>
<br>
Thank you<br>
<br>
Luca<br>