Rotating and translating your example sor into another camera view you
will see a round hole and the sor is open. So I'm just getting more
confused. The correct behaviour should be closed ended until 'open' is
specified, but at least it's not a incomplete hole there as you can see
if you re-render the following new viewpoint. Your sor isn't containing
closable points to begin with either, which apparently is just like
saying 'open'. Don't know what this means for the sor "correctness"
exactly.

//new view

 #include "colors.inc"
 #include "golds.inc"
 
 global_settings { assumed_gamma 2.2 }
 
 camera {
   location <5, 9, -10>
   look_at <0, 5, 0>
   angle 45
 }
 
 background { color rgb<0.2, 0.4, 0.8>  }
 
 light_source { <100, 100, -100> color rgb 1 }
 
 plane { y, 0
   pigment { checker color Red, color Green scale 10 }
 }
 
 sor {
   4,
   <0.5,   4.0>,
   <1.0,   5.0>,
   <3.0,  6.0>,
   <4.0,  7.0>
   texture { T_Gold_1B }
  rotate <-60,-30,0> translate <-5,0,5> //moved to see into sor
 }

Sorry, I forgot about the other post. I have a very time-limited message
reading here.


Ronald Lembcke wrote:
> 
> > What version/platform do you have there?
> Hasn't changed since my first mail ;-)
> 
> | I use Linux (Kernel 2.2.5-ac1), AMD K6-2-350
> | self compiled Povray version 3.1e (tried with and without uvpatch)
> |
> | I've also tried an inofficial version of I've compiled 3.1 and the bug
> | didn't seem to be present...
> 
> > I just rendered my sordemo.pov file using POV-Ray for Windows 3.02 (I
> > also have 3.1e though no sordemo.pov with that one) and it rendered it
> > open without the 'open' keyword. Then using 3.1e it renders the same sor
> > as closed, so you are correct sir!
> 
> Yes... but there's still something strange going on in 3.1e
> 
> A mail from Alan Kong in  povray.announce.frequently-asked-questions
> (Subject: Here are the changes between public POV-Ray 3.1 and 3.1e)
> says
> 
> | 3.1a               9/29/98 Chris Young
> | Fixed problem with sor and lathe affecting unix and amiga
> 
> Maybe this fix introduced another problem (I don't know the original one)
> 
> I've modified the sordemo scene a little bit... (camera and sor)
> I'll attach images rendered with 3.02 (the version from the Debian Linux
> package) an inofficial version of 3.1 and the version of 3.1e I've compiled.
> 
> The wierd thing is the shadow of the image rendered with 3.1e
> The shadows of 3.02 and 3.1 are correct... well... one sor is open
> the other one is closed... but the shadows are ok in respect to this.
> 
> But in 3.1e there's a half-shadow... similar to the half existing cap
> in my previous posts.
> 
> modified version of sordemo.pov:
> 
> #include "colors.inc"
> #include "golds.inc"
> 
> global_settings { assumed_gamma 2.2 }
> 
> camera {
>   location <5, 9, -10>
>   look_at <0, 5, 0>
>   angle 45
> }
> 
> background { color rgb<0.2, 0.4, 0.8>  }
> 
> light_source { <100, 100, -100> color rgb 1 }
> 
> plane { y, 0
>   pigment { checker color Red, color Green scale 10 }
> }
> 
> sor {
>   4,
>   <0.5,   4.0>,
>   <1.0,   5.0>,
>   <3.0,  6.0>,
>   <4.0,  7.0>
>   texture { T_Gold_1B }
> }
> 
> --
> Ronald Lembcke
> es1### [at] fenbaynetde
> 
>   ------------------------------------------------------------------------
>                          Name: sor_302pvm_deb.gif
>    sor_302pvm_deb.gif    Type: GIF Image (image/gif)
>                      Encoding: base64
> 
>                  Name: sor_31.gif
>    sor_31.gif    Type: GIF Image (image/gif)
>              Encoding: base64
> 
>                   Name: sor_31e.gif
>    sor_31e.gif    Type: GIF Image (image/gif)
>               Encoding: base64

-- 
 omniVERSE: beyond the universe
  http://members.aol.com/inversez/homepage.htm
 mailto:inv### [at] aolcom?Subject=PoV-News

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