It's always the simplest things... (facepalm)

I was just fiddling with the very beginnings of something, and of course it's
all gone off the rails for no reason that I can see.

Perhaps someone can tell me why my WHITE boxes in a WHITE scene with a WHITE
light source are .... anything but.




#version 3.71;
global_settings {
 assumed_gamma 1.0
}
/*
#default {
 texture {
  pigment {rgb <1, 1, 1>*0}
  finish {specular 0.4}
 }
}
*/

//background {rgb <1, 1, 1>}
sky_sphere {pigment {rgb <1, 1, 1>}}

#include "colors.inc"
#include "functions.inc"
#include "rand.inc"

camera {
  location <7, 40, -48>    // position & direction of view
  look_at  <7, 18,  0>
  right 1*x            // horizontal size of view
  up 1*y               // vertical size of view

}

light_source {<10, 50 -100> color White}

// 24 x 16 x 12

#declare Width = 24;
#declare Depth = 16;
#declare Height = 12;

#declare Line = 0.25;
#declare Origin = <0, 0, 0>;

#declare X = x*Width;
#declare Y = y*Height;
#declare Z = z*Depth;

#declare BoxTex = texture {pigment {rgb <1, 1, 1>} finish {diffuse 0}}

#declare PerspectiveBox =
union {
 sphere {Origin, Line}
 sphere {Origin+Z, Line}
 cylinder {Origin, Origin+Z, Line}
 sphere {Origin+X, Line}
 cylinder {Origin, Origin+X, Line}
 sphere {Origin+Y, Line}
 cylinder {Origin, Origin+Y, Line}

 sphere {Origin+Z+Y, Line}
 cylinder {Origin+Z, Origin+Z+Y, Line}
 sphere {Origin+X+Y, Line}
 cylinder {Origin+X, Origin+X+Y, Line}

 sphere {Origin+X+Y+Z, Line}
 cylinder {Origin+Y, Origin+Z+Y, Line}
 cylinder {Origin+Y, Origin+X+Y, Line}
 cylinder {Origin+Z+Y, Origin+X+Y+Z, Line}
 cylinder {Origin+X+Y, Origin+X+Y+Z, Line}
 union {
  box {Origin, Origin+X+Z}
  box {Origin, Origin+X+Z translate Y}
  box {Origin, Origin+X+Y}
  box {Origin, Origin+X+Y translate Z}
  box {Origin, Origin+Y+Z}
  box {Origin, Origin+Y+Z translate X}
  texture {BoxTex}
 }
}

union {
object {PerspectiveBox}
object {PerspectiveBox translate <2, 16, 2>}
rotate -y*30
}

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