Hello,

Using a version of Rhinoceros(version 3), 8 or 10 cylinders were modeled,
and exported as a POV smooth triangular surfaces.
I am exeriencing following error:

 Slab Building Error: cannot use non-perpendicular camera vectors with vista
buffer.

Below I have listed part of the POV file. Any comment or suggestions would
be welcome.

Thanks.

Sunny
-------
// POV-Ray file generated from Rhinoceros.

camera {
   orthographic
   location <38.3093, -13.2998, -27.5553>
   //look_at <39.0715, -13.6047, 1.5526>
   right <705.231, -3.82438e-017, -18.4671>
   up <0.145038, 529.076, 5.53877>
   direction <0.0261755, -0.0104718, 0.999603>
   /*
   // to get an image that's the same as the viewport in Rhino,
   // uncomment this section and render with command line options (alt+c):
   // +w403 +h264
   right <806.729, -4.37479e-017, -21.1249>
   up <0.145038, 529.076, 5.53877>
   direction <0.0261755, -0.0104718, 0.999603>
   */
}


background { color rgb <0.627451, 0.627451, 0.627451> }
global_settings { ambient_light color rgb <0, 0, 0> }


// Light 01
light_source {
   <52.2088, 106.532, -0.247745>
   color rgb <1, 1, 1>
}


// Object1
#declare Object1Material = material {
texture {
  pigment { color rgbf <0.0352941, 0.0352941, 0.0352941, 0> }
  finish  { ambient 1 diffuse 1 }
  }

-----deleted ---

Post a reply to this message

Sunny nous apporta ses lumieres en ce 2005-09-29 09:16:
> Hello,
> 
> Using a version of Rhinoceros(version 3), 8 or 10 cylinders were modeled,
> and exported as a POV smooth triangular surfaces.
> I am exeriencing following error:
> 
>  Slab Building Error: cannot use non-perpendicular camera vectors with vista
> buffer.
> 
> Below I have listed part of the POV file. Any comment or suggestions would
> be welcome.
> 
> Thanks.
> 
> Sunny
> -------
> // POV-Ray file generated from Rhinoceros.
> 
> camera {
>    orthographic
>    location <38.3093, -13.2998, -27.5553>
>    //look_at <39.0715, -13.6047, 1.5526>
>    right <705.231, -3.82438e-017, -18.4671>
>    up <0.145038, 529.076, 5.53877>
>    direction <0.0261755, -0.0104718, 0.999603>
>    /*
>    // to get an image that's the same as the viewport in Rhino,
>    // uncomment this section and render with command line options (alt+c):
>    // +w403 +h264
>    right <806.729, -4.37479e-017, -21.1249>
>    up <0.145038, 529.076, 5.53877>
>    direction <0.0261755, -0.0104718, 0.999603>
>    */
> }
> 
> -----deleted ---
> 
> 

Your camera vertors are not exactly perpendicular. In your case, it's a case of
rounding to only 3 
or 4 decimal places. Try changing the very small value (-3.8243 e-17 !) to zero.
The scene should render just fine with just a, probably imperseptible, slight skewing.
As the vista 
buffer get disabled, the rendering may get slightly longer as you may loose some
optimisation.

-- 
Alain
-------------------------------------------------
What happens if you get scared half to death twice?

Post a reply to this message

Dear Alain,

 I really appreciate your big help.


Sunny

Alain <ele### [at] netscapenet> wrote:
> Sunny nous apporta ses lumieres en ce 2005-09-29 09:16:
> > Hello,
> >
> > Using a version of Rhinoceros(version 3), 8 or 10 cylinders were modeled,
> > and exported as a POV smooth triangular surfaces.
> > I am exeriencing following error:
> >
> >  Slab Building Error: cannot use non-perpendicular camera vectors with vista
> > buffer.
> >
> > Below I have listed part of the POV file. Any comment or suggestions would
> > be welcome.
> >
> > Thanks.
> >
> > Sunny
> > -------
> > // POV-Ray file generated from Rhinoceros.
> >
> > camera {
> >    orthographic
> >    location <38.3093, -13.2998, -27.5553>
> >    //look_at <39.0715, -13.6047, 1.5526>
> >    right <705.231, -3.82438e-017, -18.4671>
> >    up <0.145038, 529.076, 5.53877>
> >    direction <0.0261755, -0.0104718, 0.999603>
> >    /*
> >    // to get an image that's the same as the viewport in Rhino,
> >    // uncomment this section and render with command line options (alt+c):
> >    // +w403 +h264
> >    right <806.729, -4.37479e-017, -21.1249>
> >    up <0.145038, 529.076, 5.53877>
> >    direction <0.0261755, -0.0104718, 0.999603>
> >    */
> > }
> >
> > -----deleted ---
> >
> >
>
> Your camera vertors are not exactly perpendicular. In your case, it's a case of
rounding to only 3
> or 4 decimal places. Try changing the very small value (-3.8243 e-17 !) to zero.
> The scene should render just fine with just a, probably imperseptible, slight
skewing. As the vista
> buffer get disabled, the rendering may get slightly longer as you may loose some
optimisation.
>
> --
> Alain
> -------------------------------------------------
> What happens if you get scared half to death twice?

Post a reply to this message

> The scene should render just fine with just a, probably imperseptible,
slight skewing. As the vista
> buffer get disabled, the rendering may get slightly longer as you may
loose some optimisation.

Vista buffers have to be disabled manually, unfortunately. (Wouldn't a
warning + automatic disabling be better?) You can do this with -UV on the
command line, I think.

 - Slime
 [ http://www.slimeland.com/ ]

Post a reply to this message

Thank you,

 Now it is working perfect with -UV on the command line.

Sunny

"Slime" <fak### [at] emailaddress> wrote:
> > The scene should render just fine with just a, probably imperseptible,
> slight skewing. As the vista
> > buffer get disabled, the rendering may get slightly longer as you may
> loose some optimisation.
>
> Vista buffers have to be disabled manually, unfortunately. (Wouldn't a
> warning + automatic disabling be better?) You can do this with -UV on the
> command line, I think.
>
>  - Slime
>  [ http://www.slimeland.com/ ]

Post a reply to this message