Hi, everybody.
I'm a newbie in POV programming, so i have many SO simple questions... Is
there any FAQ about POV-Ray's source (i.e. what does "sibling" mean???)
I'd like to translate my lofter routine into a new primitive. So, does
anybody know if POV 3.5 will support closed triangle meshes? Who should i
talk with, Nathan Kopp, Chris Young or...
Thank You.
:Daniele

P.S. take a look at http://members.xoom.com/dvarrazzo/ to see my routine. I
think it's dignified enough to become a primitive...

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On Wed, 7 Apr 1999 23:04:48 +0200, Daniele Varrazzo <piroofficineit> wrote:
>Hi, everybody.
>I'm a newbie in POV programming, so i have many SO simple questions... Is
>there any FAQ about POV-Ray's source (i.e. what does "sibling" mean???)

Somebody's working on a FAQ.  sibling is a pointer to other objects in
the same CSG.  so in 

  union {
    object {foo}
    object {bar}
    difference {
      object {baz}
      object {quuz}
    }
  }

foo and bar are siblings, and baz and quux are siblings.  There are also
two anonymous objects, one for the union and one for the difference.  The
anonymous difference object is a sibling of foo and bar.

>I'd like to translate my lofter routine into a new primitive. So, does
>anybody know if POV 3.5 will support closed triangle meshes? Who should i
>talk with, Nathan Kopp, Chris Young or...

My understanding is that the entire purpose of POV 3.5 is to take all those
unofficial patches out there and try to make some of them official.  There
isn't currently a 100% working version of closed triangle meshes, so my guess
would be no.  But I've been wrong before.

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Ron Parker wrote:
> 
> My understanding is that the entire purpose of POV 3.5 is to take all those
> unofficial patches out there and try to make some of them official.  There
> isn't currently a 100% working version of closed triangle meshes, so my guess
> would be no.  But I've been wrong before.

I also don't think that there is a fully-working closed triangle mesh
patch. Mine only works for very well-behaved meshes (but it did come in
handy once already).

-Nathan

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On Thu, 08 Apr 1999 10:37:58 -0400, Nathan Kopp <Nat### [at] Koppcom> wrote:
>Ron Parker wrote:
>> 
>> My understanding is that the entire purpose of POV 3.5 is to take all those
>> unofficial patches out there and try to make some of them official.  There
>> isn't currently a 100% working version of closed triangle meshes, so my guess
>> would be no.  But I've been wrong before.
>
>I also don't think that there is a fully-working closed triangle mesh
>patch. Mine only works for very well-behaved meshes (but it did come in
>handy once already).

And well-behaved CSGs, unless you've fixed it to return all intersections 
when it's used in an intersection or a merge (which is just a fancy intersection
anyway.)

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