in the truth it is not turbulence
and it is not even hexagon
but attention :-)
second pattern redesigned from eschers idea
thanks for criticism :-) with my first pattern entry
now a little more about it
each part of my work gives two elements

1. ready for use pigment (first image)
   for use in ordinary pigment statement:
   pigment { EscherPigmentN }
   where N is index of designed patterns
   current N can be equal 1 or 2 :-(
   but i'm still working on it :-)

2. redy for use pattern (second image)
   for use in ordinary pattern statement
   (normal, textures, pigments etc.)
   sample taken from second image explain:

#include "golds.inc"
#include "metals.inc"
#include "stones.inc"
#include "woods.inc"
#include "eschers.inc"
#local MyTexture=
 texture
  {
   EscherPattern2()
   texture_map
    {
     [0 T_Gold_3C]
     [1/3 T_Grnt24]
     [2/3 T_Wood33]
     [1 T_Silver_3C]
    }
  }
union
 {
   plane {y,0 texture {MyText}}
   plane {y,0 texture {MyText}rotate <-90,0,0>}
 }

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