/****************************************************************************

 some metal textures by Thomas de Groot.
 acknowledgement of some other origin indicated.

****************************************************************************/

#declare TdG_shiny_001 = 
texture {
  pigment {rgb 0}
}
texture {      
  pigment {
    leopard
    color_map {
      [ 0.00    rgbf <0.6979, 0.302067, 0.0104, 0.31> ]
      [ 0.07    rgbf <0.7604, 0.552067, 0.1203, 0.31> ]
      [ 0.07    rgbf <0.468733, 0.3229, 0.17, 0.02> ]
      [ 0.19    rgbf <0.489567, 0.3854, 0.1354, 0.02> ]
      [ 0.19    rgbf <0.3889, 0.343733, 0.3002, 0.9> ]
      [ 0.37    rgbf <0.25, 0.177067, 0.1354, 0.9> ]
      [ 0.37    rgbf <0.2357, 0.2495, 0.1793, 0.62> ]
      [ 0.57    rgbf <0.2357, 0.2495, 0.1793, 0.62> ]
      [ 0.57    rgbf <0.3302, 0.1342, 0.0686, 0.89> ]
      [ 1.00    rgbf <0.3302, 0.1342, 0.0686, 0.89> ]
    }
    turbulence 1.0
    octaves 4
    omega 1.0
    frequency 0.5
    phase 1.0
    poly_wave 0.5
  }      
  normal {
    granite 0.5
  }      
  finish {
    ambient 0.0
    phong 0.57
    phong_size 90.0
    specular 0.5
    metallic 1.0
    conserve_energy
    reflection {
      0.1 , 0.1
      fresnel  off
      falloff  1.0
      exponent 1.0
      metallic 0.0
    }
  }
  scale  <0.8, 0.7, 0.6>
}   


#declare TdG_shiny_002 = 
texture {
  pigment {rgb 0}
}
texture {      
  pigment {
    leopard
    color_map {
      [ 0.000000  rgbf <0.468733, 0.270833, 0.125, 0.02> ]
      [ 0.014235  rgbf <1.0, 0.802067, 0.0, 0.02> ]
      [ 0.035587  rgbf <0.3889, 0.343733, 0.3002, 0.9> ]
      [ 0.156584  rgbf <0.625, 0.177067, 0.1354, 0.9> ]
      [ 0.334520  rgbf <0.2357, 0.2495, 0.1793, 0.62> ]
      [ 0.419929  rgbf <0.2357, 0.2495, 0.1793, 0.62> ]
      [ 0.693950  rgbf <0.3302, 0.1342, 0.0686, 0.89> ]
      [ 1.000000  rgbf <0.3302, 0.1342, 0.0686, 0.89> ]
    }
    turbulence 1.0
    octaves 5
    omega 1.0
    frequency 1.5
    phase 1.0
    ramp_wave
  }      
  normal {
    granite 0.5
  }      
  finish {
    ambient 0.0
    phong 0.57
    phong_size 90.0
    specular 0.5
    metallic 1.0
    conserve_energy
    reflection {
      0.1 , 0.1
      fresnel  off
      falloff  1.0
      exponent 1.0
      metallic 0.0
    }
  }
}


#declare TdG_corroded_brass_dark = 
// Based on Corroded Iron texture by Meothuru, and jivvy_brass_patina.
texture {   
  pigment {
    color rgb <0.354133, 0.242643, 0.0>
  }   
  normal {
    hexagon
    rotate -90*x
    bump_size 0.2
    turbulence <0.01, 0.015, 0.02>
    poly_wave
    scale  <0.2, 0.05, 0.05>
  }   
  finish {
    ambient 0.0
    diffuse 0.7122
    brilliance 5.939667
    phong 0.309333
    phong_size 42.383333
    roughness 0.0075
    metallic 1.0
    reflection {
      0.043133 , 0.043133
      fresnel  off
      falloff  1.0
      exponent 1.0
      metallic 0.0
    }
  }
}
texture {   // Corrosion
  pigment {
    cells
    color_map {
      [ 0.0     rgbt <0.0, 0.0, 0.0, 0.5> ]
      [ 1.0     rgbt <1.0, 1.0, 1.0, 0.5> ]
    }
    turbulence 1.0
    octaves 5
    omega 1.0
    lambda 5.0
    ramp_wave
  }   
  normal {
    cells 5.0
    turbulence 1.0
    octaves 5
    omega 1.0
    lambda 5.0
    ramp_wave
  }
}
texture { // Patina
  pigment {
    cells
    color_map {
      [ 0.000000  rgbt <0.32571, 0.843733, 0.770833, 0.531> ]
      [ 0.224199  rgbt <0.32571, 0.843733, 0.770833, 0.0> ]
      [ 0.505338  rgbt <0.32571, 0.843733, 0.770833, 0.531233> ]
      [ 0.750890  rgbt <0.378006, 0.395833, 0.142794, 1.0> ]
      [ 1.000000  rgbt <0.378006, 0.395833, 0.142794, 1.0> ]
    }
    turbulence 1.0
    octaves 5
    omega 1.0
    lambda 5.0
    ramp_wave
  }   
  normal {
    cells 5.0
    turbulence 1.0
    octaves 5
    omega 1.0
    lambda 5.0
    ramp_wave
  }   
  finish {
    ambient 0.0
    diffuse 0.309333
    brilliance 1.804333
    phong_size 0.0
    roughness 0.0
  }
}

#declare TdG_corroded_brass_light = 
// Based on Corroded Iron texture by Meothuru, and jivvy_brass_patina.
texture {   
  pigment {
    color rgb <1.0, 0.8229, 0.437467>
  }   
  normal {
    hexagon
    rotate -90*x
    bump_size 0.2
    turbulence <0.01, 0.015, 0.02>
    poly_wave
    scale  <0.2, 0.05, 0.05>
  }   
  finish {
    ambient 0.0
    diffuse 0.7122
    brilliance 5.939667
    phong 0.309333
    phong_size 42.383333
    roughness 0.0075
    metallic 1.0
    conserve_energy
    reflection {
      0.043133 , 0.043133
      fresnel  off
      falloff  1.0
      exponent 1.0
      metallic 0.0
    }
  }
}
texture { // Corrosion
  pigment {
    cells
    color_map {
      [ 0.0     rgbt <0.0, 0.0, 0.0, 0.5> ]
      [ 1.0     rgbt <1.0, 1.0, 1.0, 0.5> ]
    }
    turbulence 1.0
    octaves 5
    omega 1.0
    lambda 5.0
    ramp_wave
  }   
  normal {
    cells 5.0
    turbulence 1.0
    octaves 5
    omega 1.0
    lambda 5.0
    ramp_wave
  }
}
texture { // Patina
  pigment {
    cells
    color_map {
      [ 0.000000  rgbt <0.32571, 0.843733, 0.770833, 0.531> ]
      [ 0.224199  rgbt <0.32571, 0.843733, 0.770833, 0.0> ]
      [ 0.505338  rgbt <0.32571, 0.843733, 0.770833, 0.531233> ]
      [ 0.750890  rgbt <0.378006, 0.395833, 0.142794, 1.0> ]
      [ 1.000000  rgbt <0.378006, 0.395833, 0.142794, 1.0> ]
    }
    turbulence 1.0
    octaves 5
    omega 1.0
    lambda 5.0
    ramp_wave
  }   
  normal {
    cells 5.0
    turbulence 1.0
    octaves 5
    omega 1.0
    lambda 5.0
    ramp_wave
  }   
  finish {
    ambient 0.0
    diffuse 0.309333
    brilliance 1.804333
    phong_size 0.0
    roughness 0.0
  }
}

#declare TdG_rusted_shiny_metal = 
texture {
  bozo
  texture_map {
    [0.30  pigment {
             color rgb <0.71, 0.65, 0.26>
           }               
           finish {
             ambient 0.0
             diffuse 0.7
             brilliance 6.0
             phong 0.75
             phong_size 80.0
             reflection {
               0.25 , 0.25
               fresnel  off
               falloff  1.0
               exponent 1.0
               metallic 0.0
             }
           }
         ]
    [0.4   pigment {
             granite
             color_map {
               [ 0.0     rgb <0.89, 0.51, 0.28> ]
               [ 0.4     rgb <0.7, 0.13, 0.0> ]
               [ 0.5     rgb <0.69, 0.41, 0.08> ]
               [ 0.6     rgb <0.49, 0.31, 0.28> ]
               [ 1.0     rgb <0.89, 0.51, 0.28> ]
             }
             scale 0.3
             warp {
               turbulence 0.5
             }
           }
           normal {
             granite 0.5
             scale 0.01
           }             
           finish {
             ambient 0.0
             diffuse 0.4
           }
         ]
  }
  warp {
    turbulence <3.0, 2.0, 1.0>
  }
}

#declare TdG_rusty_iron = 
texture {      
  pigment {
    granite
    color_map {
      [ 0.000000  rgb <0.42, 0.2, 0.2> ]
      [ 0.387900  rgb <0.593733, 0.302067, 0.02> ]
      [ 0.508897  rgb <0.5104, 0.2, 0.2> ]
      [ 0.654804  rgb <0.3, 0.2, 0.2> ]
      [ 1.000000  rgb <0.3, 0.2, 0.2> ]
    }
    scale 0.5
  }      
  normal {
    bozo 1.0
    bump_size 0.5
    scale  <0.08, 0.07, 0.06>
  }
  finish {
    ambient 0.0
    diffuse 0.6
    specular 0.5
    roughness 0.005
  }
}
texture {      
  pigment {
    granite
    color_map {
      [ 0.387900  rgbt <0.42, 0.2, 0.2, 1.0> ]
      [ 0.387900  rgbt <0.593733, 0.302067, 0.02, 0.1> ]
      [ 0.508897  rgbt <0.5104, 0.2, 0.2, 0.4> ]
      [ 0.654804  rgbt <0.3, 0.2, 0.2, 0.3> ]
      [ 1.000000  rgbt <0.3, 0.2, 0.2, 0.8> ]
    }
  }      
  normal {
    bozo 1.0
    bump_size 0.5
    scale  <0.08, 0.07, 0.06>
  }
}