All planes are clipped by the same box. The red "circle" show the broken 
lines in the resulting scene which is attached.

Here is the script (the resulting scene is attached):

global_settings { assumed_gamma 2.2 }
sky_sphere { pigment { rgb <0.20,0.20,0.20> } }
light_source { <8.,8.,1.84e+01> color rgb <1.,1.,1.> }
light_source { <-8.0,-8.0,1.840e+01> color rgb <1.,1.,1.> }
camera {
   location <0.0,0.0,8.4>
   right -x
   look_at <0,0,0>
  angle 45
}
plane { 
<-8.164965809277258e-01,4.714045207910321e-01,3.333333333333335e-01>, -1.0
   clipped_by { box { <2.1,2.1,2.1> <-2.1,-2.1,-2.1> }}
   texture {
     pigment { color rgb <0.20,0.20,0.80> transmit 0.000000 }
     finish { phong 0.700000 ambient rgb <0.70,0.70,0.70>}
   }
   interior_texture {
     pigment { color rgb <0.70,0.70,0.20> transmit 0.000000 }
     finish { phong 0.700000 ambient rgb <0.70,0.70,0.70>}
   }
}
plane { 
<8.164965809277260e-01,4.714045207910315e-01,3.333333333333335e-01>, -1.0
   clipped_by { box { <2.1,2.1,2.1> <-2.1,-2.1,-2.1> }}
   texture {
     pigment { color rgb <0.20,0.20,0.80> transmit 0.000000 }
     finish { phong 0.700000 ambient rgb <0.70,0.70,0.70>}
   }
   interior_texture {
     pigment { color rgb <0.70,0.70,0.20> transmit 0.000000 }
     finish { phong 0.700000 ambient rgb <0.70,0.70,0.70>}
   }
}
plane { <0.0,-9.428090415820634e-01,3.333333333333335e-01>, -1.0
   clipped_by { box { <2.1,2.1,2.1> <-2.1,-2.1,-2.1> }}
   texture {
     pigment { color rgb <0.20,0.20,0.80> transmit 0.000000 }
     finish { phong 0.700000 ambient rgb <0.70,0.70,0.70>}
   }
   interior_texture {
     pigment { color rgb <0.70,0.70,0.20> transmit 0.000000 }
     finish { phong 0.700000 ambient rgb <0.70,0.70,0.70>}
   }
}
plane { <0.0,0.0,1.0>, 1.0
   clipped_by { box { <2.1,2.1,2.1> <-2.1,-2.1,-2.1> }}
   texture {
     pigment { color rgb <0.20,0.20,0.80> transmit 0.000000 }
     finish { phong 0.700000 ambient rgb <0.70,0.70,0.70>}
   }
   interior_texture {
     pigment { color rgb <0.70,0.70,0.20> transmit 0.000000 }
     finish { phong 0.700000 ambient rgb <0.70,0.70,0.70>}
   }
}

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Attachments:
Download 'bug.png' (19 KB)

Preview of image 'bug.png'

Christophe Raffalli wrote:
> 
> All planes are clipped by the same box. The red "circle" show the broken 
> lines in the resulting scene which is attached.

No matter how hard I try I see nothing red in the attached image. And 
can you post a _minimal_ scene showing the problem. By minimal I mean 
that there should be no unnecessary lights, finish or transmit 
statements, objects (for example if you need only _one_ plane to show 
the problem, now there are 4 of them) or sky_spheres etc. Try to make it 
as small and simple as possible. That would make it easier to spot the 
actual problem and maybe even solve it. Thanks in advance.

Severi Salminen

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Attachments:
Download 'utf8' (1 KB)

Sorry I posted the wrong pnb.

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Attachments:
Download 'bug.png' (33 KB)

Preview of image 'bug.png'

Severi Salminen wrote:

> No matter how hard I try I see nothing red in the attached image. And 
[Snip...]

Sorry for the vCard in the last message. 100% accident...

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On Thu, 26 Feb 2004 09:37:28 +0100, Christophe Raffalli
<raf### [at] univ-savoiefr> wrote:
> All planes are clipped by the same box. The red "circle" show the broken 
> lines in the resulting scene which is attached.

Change color of the planes to realize you are confused by the shadow of one of
planes.

ABX

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OK, I got it, this is not a bug !!

This is a shadow looking exactly as the object itleft (because the is 
only ambient light) making: the real intersection line between the two 
plane invisible !!!

Sorry

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"Christophe Raffalli" <raf### [at] univ-savoiefr> wrote in message
news:403### [at] univ-savoiefr...
>
> Sorry I posted the wrong pnb.

That's okay, man; we don't judge the chromatically challenged here. We're
all god's creatures :-P

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