Thank you for putting the code available. I'll certainly have a look at
the part about the "dodecahedron". The object is very nice and your
method to obtain the other angle by trial and error gave a good result.
I'm sure one can find the value in a pure mathematical way and after
examining your code I'll send it. Unfortunately I can't do it to your
personal e-mail address because I can't get this from your messages.

nospam wrote:
> 
> On Fri, 22 Feb 2002 09:14:19 +0100, Herman Serras
> <Her### [at] pandorabe> wrote:
> 
> >Hello Pete,
> >I like this picture very much: it's a nice combination of geometry, art
> >and raytracing. As a mathematician I'm interested in polyhedra (as one
> >can see on my website), but being a novice in povray I'm interested in
> >the source of your picture or, if you prefer not to distribute it, tell
> >us more about the construction of the object based on the dodecahedron.
> >I'm sure that I'm not the only interested person.
> >Friendly greetings!
> >--
> >Herman Serras
> >Gent (Belgium)
> >http://cage.rug.ac.be/~hs/
> 
> Umm, well ... the construction of this dodecahedron is
> not mathematically "pure".  Two angles are used to rotate
> copies of a pentagonal "face" object.  One angle is 72
> degrees (easy, as it is a known integer value, being 1/5th
> of 360), the other was ... um ... derived by trial and
> error.
> 
> Code is posted as a zip on povray.binaries.scene-files.
> 2 warnings: (1) it uses v3.5 features  (2) It needs
> nine bitmaps to build the background hallway pigment.
> I've not included them because they are huge and are
> not that important.  Just use any nine pics you have
> lying around.
> 
> Pete

-- 
Herman Serras
Gent (Belgium)
http://cage.rug.ac.be/~hs/

Post a reply to this message