I've created a bozo pattern, and after playing around with the various
turbulence parameters (omega, lambda, and so forth), discovered an odd
effect.

Namely, at certain points in the pattern, there are very obvious
parallel bands where the bozo pattern abruptly changes.  Why does this
happen?  (And the question I'm really interested in, how can I prevent
it from happening?)  I've included a small example source below, and
placed a rendered version at:

    http://www.gate.net/~shipbrk/raytrace/temp/bozobands.jpg


#declare TestTexture = texture {
  pigment { bozo
    colour_map {
      [0.00 colour rgb <1,0,0>]
      [0.50 colour rgb <0,0,1>]
      [0.50 colour rgb <0,0,0>]
      [1.00 colour rgb <1,1,1>]
    }
    warp { turbulence 1.0 lambda 2.35 omega 0.75 octaves 9 }
    scale 0.55
  }
  rotate z*-89.999
  rotate x*-108
  translate <0,9290,0>
}

box { <1000,0,1000>, <-1000,-1,-1000> texture { TestTexture }}
camera { location <0,0.0002,0> look_at <10,0.0002,0> }
light_source { <0,1000,0> colour rgb <1,1,0.95> }


-- 
Jeff Lee         shi### [at] gatenet         http://www.gate.net/~shipbrk/

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