appreciate your reply, and please excuse my ignurance, but what is p.b.i?
J. Grimbert <jgr### [at] atos-groupcom> wrote in message
news:39659FDA.EBF9F4C8@atos-group.com...
>
>

>
> > the if function works, but my object seems flat, i believe it is the
problem
> > you have mentioned...
> >  have any solution, cause this way all of the object seems to share the
same
> > normal...?
>
> Well, I started thinking about a new CSG construct after your first
message.
> Please have a look in p.b.i for some examples, subject is Kepler.
>
> My solution introduce a new object in povray (Yet another patch... sorry!)
> I do not know if it is acceptable for your original problem.
>
>
> >
> > Mike Williams <mik### [at] nospamplease> wrote in message
> > news:0o0### [at] econymdemoncouk...
> > > Wasn't it Oded who wrote:
> > > >This is more of of a mathematical problem than a practical one:
> > > >can any one think of a better way to create the following object
type:
> > > >I was thinking, while trying to convert a dodchahedron to a 3d star,
of
> > an
> > > >object that will give the user higher control of defining 'in' and
'out'
> > in
> > > >CSG objects. in pov-ray you can only define intersections, inverses
and
> > > >unions.
> > > >I was thinking of more complicated rules, eg:
> > > >    a point A is "inside" function (a1....a12) if it is
inside 11
> > > >out of 12 objects.
> > > >what i needed to do for that was to define a union of 12
intersections of
> > 6
> > > >objects which was was quite dirty (mathematically speaking)
> > > >eventually i ended up writing a c program to raytrace these objects
> > defined
> > > >soly by the 12 objects.
> > >
>
> [isosurface solution removed from this message]
>
> >
> > >
> > > --
> > > Mike Williams
> > > Gentleman of Leisure
>

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