clipka <ano### [at] anonymousorg> wrote:
> Am 09.07.2017 um 18:24 schrieb Norbert Kern:
>
> > Fresnel lets the iridescence disappear
>
> What?
> It shouldn't do that.



Then - try this replacement of the terminal part of code in message 1.
You will recieve pure dark grey (rgb 0.05).

Norbert




#declare RotBox =
object {
 RoundBox () scale 1.2
 rotate <45,0,35>
}

merge {
 object {RotBox scale 0.9}
 object {RotBox translate <1,0,0>}
 object {RotBox translate <-1,0,0>}
 object {RotBox translate <0,1,0>}
 object {RotBox translate <0,-1,0>}
 object {RotBox translate <0,0,2.5>}
 object {RotBox translate <0,0,-2.5>}
 hollow
 pigment {color rgb 0.001}
 finish {
  reflection {1 fresnel on}
  irid {0.05 thickness 0.315}
 }
 rotate 90*x
}

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