Problem with KNIFE-LINECUT

[robimurer]

Hello everyone, my first question in this forum, thanks in advance.
I am making a dynamic web, first i try with hair, flat render, tag cloth and more or less ...
I found a very good tutorial, where he uses the knife or line cut (this also is not clear to me, did they change the name?)
to cut a plane and remove the surface and then with ATOM ARRAY AND CLOTH TAG puts the dinamic, it goes very well!
Time the question: when I want to cut the plane in lines of cut, the cut knife closes the polygon to its pleasure!
I understand that it applies some algorithm to the polygon, but in the tutorial that uses an old c4d, it can cut everywhere without being created an automatic line.
I already try all the options of the instrument .....
can I leave the link of the tutorials?
https://vimeo.com/15232639

[visualtricks]

Hi and welcome. I think you can get a similar result with a simple plane and the Surface deformer. You can then use splines or whatever you want to build your web.

[robimurer]

Thank you Massimiliano, I think that this the way for mi web!
And so , now I can render de spline whit extruder or sweep .... correct?
I need understand the surface deformer ... at work! thank.