see: "Wouldn't it be nice: patterns and finish items" in povray.general

source:

camera {
  location <-2.5,2.5,-5>
  look_at 0
  angle 40
}

light_source {
  <-4.9,4.9,4.9>
  rgb 1
}

#default { pigment { rgb y } }


#local fin0 = finish {};

#local fin1 = finish { specular 1 };
#local fin2 = finish { reflection 1 };
#local fin3 = finish { ambient .75 };

#local fin12 = finish { specular 1 reflection 1 };
#local fin13 = finish { specular 1 ambient .75 };
#local fin23 = finish { reflection 1 ambient .75 };

#local fin123 = finish { specular 1 reflection 1 ambient .75 };


#local tex01 = texture { finish { fin0 } };
#local tex02 = texture { finish { fin1 } };
#local tex03 = texture { finish { fin2 } };
#local tex04 = texture { finish { fin3 } };
#local tex05 = texture { finish { fin12 } };
#local tex06 = texture { finish { fin13 } };
#local tex07 = texture { finish { fin23 } };
#local tex08 = texture { finish { fin123 } };

#local tex09 = texture {
  wrinkles
  texture_map {
    [0.0 tex01]
    [0.5 tex01]
    [0.5 tex02]
    [1.0 tex02]
  }
  frequency 3
}

#local tex10 = texture {
  wrinkles
  texture_map {
    [0.0 tex03]
    [0.5 tex03]
    [0.5 tex04]
    [1.0 tex04]
  }
  frequency 3
}

#local tex11 = texture {
  wrinkles
  texture_map {
    [0.0 tex05]
    [0.5 tex05]
    [0.5 tex06]
    [1.0 tex06]
  }
  frequency 3
}

#local tex12 = texture {
  wrinkles
  texture_map {
    [0.0 tex07]
    [0.5 tex07]
    [0.5 tex08]
    [1.0 tex08]
  }
  frequency 3
}

#local tex13 = texture {
  granite
  texture_map {
    [0.0 tex09]
    [0.5 tex09]
    [0.5 tex10]
    [1.0 tex10]
  }
}

#local tex14 = texture {
  granite
  texture_map {
    [0.0 tex11]
    [0.5 tex11]
    [0.5 tex12]
    [1.0 tex12]
  }
}

#local final_tex = texture {
  bozo
  texture_map {
    [0.0 tex13]
    [0.5 tex13]
    [0.5 tex14]
    [1.0 tex14]
  }
  frequency 10
}

box {
  <-5,-1,-5>, <5,9,5>
  inverse
  pigment { checker rgb 0 rgb 1 }
}

sphere {
  0, 1
  texture { final_tex }
}

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