WhiteZebra <ypo### [at] cogniscienceinccom> wrote:
> union {
>   // Right wall
>   triangle{<0.0, 54.88, 0.0>,<0.0, 54.88, 55.92>,<0.0, 0.0, 55.92>}
>   triangle{<0.0, 54.88, 0.0>,<0.0, 0.0, 55.92>,<0.0, 0.0, 0.0>}
>   texture {Green}
>   split_union off
>   photons {
>     target 1.0
>     refraction off
>     reflection yes
>     collect off
>   }
> }

  How do you expect photons to reflect from these surfaces when they have
no reflection?
  Photons only work for reflecting and refracting objects.

  (Another mistake: Since you have "collect off", which means that no
photons are stored on the surface of this object, how do you expect it
to receive light reflected from other surfaces?)

-- 
#macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
[1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
-1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -

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