POV-Ray : Newsgroups : povray.advanced-users : CSG'ing a mesh2 : Re: CSG'ing a mesh2 Server Time: 7 Jul 2008 02:08:57 GMT
  Re: CSG'ing a mesh2  
From: Bill Pragnell
Date: 26 Oct 2007 11:00:00
"Trevor G Quayle" <TinCanMan_2000 [at] hotmailcom> wrote:
> "Greg M. Johnson" <pterandon [at] thecommononethatstartswithYcom> wrote:
> > I'm thinking about a project for constructing things out of mesh2's. I think
> > I'd like to cut the mesh2 with CSG.
> >
> >
> > Is this unadvised (specifically. why then?)?
> > thanks.
>
> It is unadvised at times, because it can be very difficult to figure out
> what is in and what is out and you may not get what you expect, especially
> if your mesh isn't fully closed.  It is however possible, try adding an
> inside_vector to your mesh.  Read about it in the docs for more info.

As long as you're confident that all your normals are pointing in/out
consistently, and that the mesh is fully closed, there should be no
problem. I've done it before. It can be fiddly if you're building a mesh by
hand.


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