#declare P_WoodGrain1A =
  pigment {
    wood
    turbulence 0.04
    octaves 3
    scale <0.05, .05, 1>
  }
  
#declare P_WoodGrain1B =
  pigment {
    wood
    turbulence <0.1, 0.5, 1>
    octaves 5
    lambda 3.25
    scale <0.15, .5, 1>
    rotate <5, 10, 5>
    translate -x*2
  }

#declare P_WoodGrain2A =
  pigment {
    wood
    turbulence 0.04
    octaves 3
    scale <0.15, .15, 1>
  }

#declare P_WoodGrain2B =
  pigment {
    wood  
    turbulence <0.1, 0.35, 0.1>
    octaves 5
    lambda 3.25
    scale <0.25, .25, 1>
    rotate <5, 10, 5>
    translate -x*2
  }

#declare P_WoodGrain3A = 
  pigment {
    wood  
    turbulence 0.04
    octaves 3
    scale <0.05, .05, 1>
    rotate <2,2,0>
  }

#declare P_WoodGrain3B =
  pigment {
    wood  
    turbulence <0.1, 0.5, 1> 
    octaves 5
    lambda 3.25
    scale <0.15, .5, 1>
    rotate <5, 10, 5>
    translate -x*2
  }

#declare P_WoodGrain4A = 
  pigment {
    wood
    turbulence 0.04
    octaves 4
    omega 1.25
    scale <0.15, .15, 1>
  }

#declare P_WoodGrain4B =
  pigment {
    bozo
    turbulence <0.03, 0.03, 0.1>
    octaves 5
    lambda 3.25
    scale <0.025, .025, 1.0>
  }
  
#declare P_WoodGrain5A =
  pigment {
    wood  
    turbulence <0.04, 0.04, 0.1>
    octaves 4
    omega 1.25
    scale <0.15, .15, 1>
  }

#declare P_WoodGrain5B =
  pigment {
    wood  
    turbulence <0.025, 0.025, 0.1>
    octaves 4
    omega 1.3
    scale <0.30, .20, 1>
    translate <0.1, 0.1, 0.20>
  }

#declare P_WoodGrain6A =
  pigment {
    wood 
    turbulence <0.05, 0.08, 1>
    octaves 4
    scale <0.15, .15, 1>
    translate -x*100
  }

#declare P_WoodGrain6B =
  pigment {
    wood  
    turbulence <0.05, 0.05, 0>
    octaves 4
    omega 0.95
    scale <0.20, 0.20, 1>             
    rotate x*20
  }


#declare P_WoodGrain7A =
  pigment {
    wood
    turbulence <0.05, 0.08, 1000>
    octaves 4
    scale <0.15, .15, 1>
  }

#declare P_WoodGrain7B =
  pigment {
    bozo
    scale <0.01, 0.01, 100000>
  }


#declare P_WoodGrain8A =
  pigment {
    wood
    turbulence 0.04
    octaves 3
    scale <0.05, .05, 1>
  }

#declare P_WoodGrain8B =
  pigment {
    wood
    turbulence <0.04, 0.04, 1>
    octaves 4
    scale <0.05, 0.05, 1> * 0.66
  }

#declare P_WoodGrain9A =
  pigment {
    wood  
    turbulence 0.1
    octaves 4
    lambda 3
    scale 0.2
    rotate <0.125, 0.125, 0>
  }

#declare P_WoodGrain9B =
  pigment {
    wood
    turbulence 0.1          
    octaves 4
    lambda 3.5
    scale 0.2
    rotate <0.125, 0.125, 0>
    translate <0.015, 0.015, 0.015>
  }

#declare M_Wood1A =
  color_map { 
    [0.0, 0.1 color rgb <0.88, 0.60, 0.40>
              color rgb <0.88, 0.60, 0.40>]
    [0.1, 0.9 color rgb <0.88, 0.60, 0.40>
              color rgb <0.60, 0.30, 0.20>]
    [0.9, 1.0 color rgb <0.60, 0.30, 0.20>
              color rgb <0.60, 0.30, 0.20>]
  }

#declare M_Wood2A = 
  color_map { 
    [0.0, 0.1 color rgb <0.35, 0.16, 0.12 >* 0.5
              color rgb <0.35, 0.16, 0.12>* 0.5]
    [0.1, 0.9 color rgb <0.35, 0.20, 0.16>* 0.5
              color rgb <0.46, 0.26, 0.18>* 0.5]
    [0.9, 1.0 color rgb <0.46, 0.26, 0.18>* 0.5
              color rgb <0.35, 0.16, 0.12>* 0.5]
  }

#declare M_Wood3A =
  color_map {
    [0.0, 0.1 color rgb <0.75, 0.65, 0.45>
              color rgb <0.75, 0.65, 0.45>]
    [0.1, 0.9 color rgb <0.75, 0.65, 0.45>
              color rgb <0.70, 0.55, 0.40>]
    [0.9, 1.0 color rgb <0.70, 0.55, 0.40>
              color rgb <0.75, 0.65, 0.45>]
  }

#declare M_Wood4A = 
  color_map { 
    [0.0, 0.3 color rgb <0.30, 0.10, 0.15>
              color rgb <0.30, 0.15, 0.15>]
    [0.3, 0.6 color rgb <0.30, 0.15, 0.15>
              color rgb <0.50, 0.20, 0.15>]
    [0.6, 1.0 color rgb <0.50, 0.20, 0.15>
              color rgb <0.30, 0.10, 0.15>]
  }

#declare M_Wood5A = 
  color_map { 
    [0.0, 0.3 color rgb <0.50, 0.35, 0.10>
              color rgb <0.50, 0.35, 0.10>]
    [0.3, 0.6 color rgb <0.50, 0.35, 0.10>
              color rgb <0.60, 0.45, 0.10>]
    [0.6, 1.0 color rgb <0.60, 0.45, 0.10>
              color rgb <0.50, 0.35, 0.10>]
  }

#declare M_Wood6A = 
  color_map { 
    [0.0, 0.3 color rgb <0.25, 0.10, 0.10>
              color rgb <0.25, 0.10, 0.10>]
    [0.3, 0.6 color rgb <0.25, 0.10, 0.10>
              color rgb <0.60, 0.15, 0.10>]
    [0.6, 1.0 color rgb <0.60, 0.15, 0.10>
              color rgb <0.25, 0.10, 0.10>]
  }

#declare M_Wood7A = 
  color_map { 
    [0.0, 0.1 color rgb <0.60, 0.35, 0.20>
              color rgb <0.60, 0.35, 0.20>]
    [0.1, 0.9 color rgb <0.60, 0.35, 0.20>
              color rgb <0.90, 0.65, 0.30>]
    [0.9, 1.0 color rgb <0.90, 0.65, 0.30>
              color rgb <0.60, 0.35, 0.20>]
  }

#declare M_Wood8A = 
  color_map { 
    [0.0, 0.1 color rgb <0.45, 0.30, 0.15>
              color rgb <0.45, 0.30, 0.15>]
    [0.1, 0.9 color rgb <0.55, 0.30, 0.15>
              color rgb <0.20, 0.15, 0.05>]
    [0.9, 1.0 color rgb <0.20, 0.15, 0.05>
              color rgb <0.45, 0.30, 0.15>]
  }

#declare M_Wood9A = 
  color_map { 
    [0.0, 0.5 color rgb <1.00, 0.85, 0.50>
              color rgb <0.60, 0.40, 0.16>]
    [0.5, 0.7 color rgb <0.60, 0.40, 0.16>
              color rgb <0.60, 0.40, 0.16>]
    [0.7, 1.0 color rgb <0.60, 0.40, 0.16>
              color rgb <1.00, 0.85, 0.50>]
  }

#declare M_Wood10A = 
  color_map { 
    [0.0, 0.5 color rgb <1.00, 0.85, 0.50>
              color rgb <0.90, 0.70, 0.46>]
    [0.5, 0.7 color rgb <0.90, 0.70, 0.46>
              color rgb <0.90, 0.70, 0.46>]
    [0.7, 1.0 color rgb <0.90, 0.70, 0.46>
              color rgb <1.00, 0.85, 0.50>]
  }

#declare M_Wood11A = 
  color_map {
    [0.000, 0.222 color rgb <0.80, 0.67, 0.25>
                  color rgb <0.80, 0.67, 0.25>]
    [0.222, 0.342 color rgb <0.80, 0.67, 0.25>
                  color rgb <0.60, 0.34, 0.04>]
    [0.342, 0.393 color rgb <0.60, 0.34, 0.04>
                  color rgb <0.80, 0.67, 0.25>]
    [0.393, 0.709 color rgb <0.80, 0.67, 0.25>
                  color rgb <0.80, 0.67, 0.25>]
    [0.709, 0.821 color rgb <0.80, 0.67, 0.25>
                  color rgb <0.53, 0.29, 0.02>]
    [0.821, 1.000 color rgb <0.53, 0.29, 0.02>
                  color rgb <0.80, 0.67, 0.25>]
  }

#declare M_Wood12A = 
  color_map {
    [0.000, 0.256 color rgb <0.20, 0.11, 0.07>*1.25 
                  color rgb <0.23, 0.12, 0.09>*1.25]
    [0.256, 0.393 color rgb <0.23, 0.12, 0.09>*1.25
                  color rgb <0.24, 0.13, 0.09>*1.25]
    [0.393, 0.581 color rgb <0.24, 0.13, 0.09>*1.25
                  color rgb <0.20, 0.11, 0.07>*1.25]
    [0.581, 0.726 color rgb <0.20, 0.11, 0.07>*1.25
                  color rgb <0.25, 0.12, 0.10>*1.25]
    [0.726, 0.983 color rgb <0.25, 0.12, 0.10>*1.25
                  color rgb <0.23, 0.12, 0.08>*1.25]
    [0.983, 1.000 color rgb <0.23, 0.12, 0.08>*1.25
                  color rgb <0.20, 0.11, 0.07>*1.25]
  }

#declare M_Wood14A = 
  colour_map {
    [0.00 0.10 color rgb < 0.80, 0.232, 0.115 >
               color rgb < 0.80, 0.232, 0.115 >]
    [0.10 0.90 color rgb < 0.80, 0.232, 0.115 >
               color rgb < 0.45, 0.115, 0.060 >]
    [0.90 1.0  color rgb < 0.45, 0.115, 0.060 >
               color rgb < 0.45, 0.115, 0.060 >]
  }

#declare M_Wood15A = 
  colour_map {
    [0.00 0.25   color rgb < 0.504, 0.310, 0.078> * 0.7
                 color rgb < 0.531, 0.325, 0.090> * 0.8 ]
    [0.25 0.40   color rgb < 0.531, 0.325, 0.090> * 0.8
                 color rgb < 0.547, 0.333, 0.090> * 0.5 ]
    [0.40 0.50   color rgb < 0.547, 0.333, 0.090> * 0.5
                 color rgb < 0.504, 0.310, 0.075> * 0.6 ]
    [0.50 0.70   color rgb < 0.504, 0.310, 0.075> * 0.6 
                 color rgb < 0.559, 0.322, 0.102> * 0.4 ]
    [0.70 0.98   color rgb < 0.559, 0.322, 0.102> * 0.4
                 color rgb < 0.531, 0.325, 0.086> * 0.4 ]
    [0.98 1.00   color rgb < 0.531, 0.325, 0.086> * 0.4
                 color rgb < 0.504, 0.310, 0.078> * 0.7 ]
  }

#declare M_Wood16A =
  colour_map {
    [0.00 0.25   color rgb < 0.504, 0.310, 0.078> * 0.7
                 color rgb < 0.531, 0.325, 0.090> * 0.8 ]
    [0.25 0.40   color rgb < 0.531, 0.325, 0.090> * 0.8
                 color rgb < 0.547, 0.333, 0.090> * 0.5 ]
    [0.40 0.50   color rgb < 0.547, 0.333, 0.090> * 0.5
                 color rgb < 0.504, 0.310, 0.075> * 0.6 ]
    [0.50 0.70   color rgb < 0.504, 0.310, 0.075> * 0.6
                 color rgb < 0.559, 0.322, 0.102> * 0.4 ]
    [0.70 0.98   color rgb < 0.559, 0.322, 0.102> * 0.4
                 color rgb < 0.531, 0.325, 0.086> * 0.4 ]
    [0.98 1.00   color rgb < 0.531, 0.325, 0.086> * 0.4
                 color rgb < 0.504, 0.310, 0.078> * 0.7 ]
  }

#declare M_Wood17A =
  colour_map {
    [0.00 0.25   color rgb < 0.70, 0.40, 0.15> * 0.9
                 color rgb < 0.75, 0.42, 0.30> * 0.7 ]
    [0.25 0.40   color rgb < 0.75, 0.42, 0.25> * 0.7
                 color rgb < 0.74, 0.43, 0.30> * 0.5 ]
    [0.40 0.50   color rgb < 0.74, 0.43, 0.20> * 0.5
                 color rgb < 0.70, 0.42, 0.15> * 0.3 ]
    [0.50 0.70   color rgb < 0.70, 0.42, 0.15> * 0.3 
                 color rgb < 0.64, 0.46, 0.10> * 0.4 ]
    [0.70 0.98   color rgb < 0.64, 0.46, 0.10> * 0.4
                 color rgb < 0.65, 0.42, 0.20> * 0.6 ]
    [0.98 1.00   color rgb < 0.65, 0.42, 0.20> * 0.6
                 color rgb < 0.60, 0.40, 0.15> * 0.9 ]
  }

#declare M_Wood18A = 
  colour_map {
    [0.00 0.15   color rgb < 1.0, 0.50, 0.00> 
                 color rgb < 1.0, 0.50, 0.00> *0.5 ]
    [0.15 0.25   color rgb < 1.0, 0.50, 0.00> *0.5 
                 color rgb < 1.0, 0.45, 0.00> *0.7 ]
    [0.25 0.28   color rgb < 1.0, 0.45, 0.00> *0.8 
                 color rgb < 1.0, 0.36, 0.00> *0.3 ]
    [0.28 0.40   color rgb < 1.0, 0.36, 0.00> *0.3 
                 color rgb < 1.0, 0.40, 0.00> *0.4 ]
    [0.40 0.50   color rgb < 1.0, 0.40, 0.00> *0.4 
                 color rgb < 1.0, 0.40, 0.00> *0.6 ]
    [0.50 0.70   color rgb < 1.0, 0.50, 0.00> *0.6 
                 color rgb < 1.0, 0.50, 0.00> *0.7 ]
    [0.70 0.98   color rgb < 1.0, 0.45, 0.00> *0.7 
                 color rgb < 1.0, 0.45, 0.00> *0.5 ]
    [0.98 1.00   color rgb < 1.0, 0.45, 0.00> *0.5 
                 color rgb < 1.0, 0.50, 0.00> ]
  }

#declare M_Wood20A =
  color_map {
    [0.15 color rgbt <0.38039, 0.14902, 0.0, 0.0>]
    [0.25 color rgbt <0.23539, 0.00000, 0.0, 0.0>]
    [0.35 color rgbt <0.38139, 0.14912, 0.0, 0.0>]
    [0.45 color rgbt <0.23549, 0.00000, 0.0, 0.0>]
    [0.55 color rgbt <0.38139, 0.14902, 0.0, 0.0>]
    [0.65 color rgbt <0.23559, 0.00000, 0.0, 0.0>]
    [0.75 color rgbt <0.38139, 0.14922, 0.0, 0.0>]
    [0.85 color rgbt <0.23549, 0.00000, 0.0, 0.0>]
    [0.95 color rgbt <0.38039, 0.14902, 0.0, 0.0>]
    [0.90 color rgbt <0.23539, 0.00000, 0.0, 0.0>]
    [1.00 color rgbt <0.38039, 0.14932, 0.0, 0.0>]
  }