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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Preview of image 'bug.png'