// Last edited on 2007-06-28 09:24:34 by stolfi
// Processed by remove-cam-lights

global_settings { max_trace_level 12 }

background { color rgb < 0.90, 0.95, 1.00 > }

#declare tinta_red = 
  texture {
    pigment { color rgb < 0.65, 0.0, 0.0 > filter 1.0}
    finish { diffuse 0.5 specular 0.5 roughness 0.005 ambient 0.1 }
  }

#declare tinta_yellow = 
  texture {
    pigment { color rgb < 1.0, 0.8, 0.1 > }
    finish { diffuse 0.5 specular 0.5 roughness 0.005 ambient 0.2 reflection 0.2}
  }

#declare tinta_green = 
  texture {
    pigment { color rgb < 0.00, 0.65, 0.0 > filter 1.0}
    finish { diffuse 0.5 specular 0.5 roughness 0.005 ambient 0.1 }
  }

#declare tinta_blue = 
  texture {
    pigment { color rgb < 0.00, 0.0, 0.65 > }
    finish { diffuse 0.5 specular 0.5 roughness 0.005 ambient 0.1 }
  }

#declare tinta_black = 
  texture {
    pigment { color rgb < 0.00, 0.00, 0.0 > }
    finish { diffuse 0.5 specular 0.5 roughness 0.005 ambient 0.1 }
  }

#declare tinta_white = 
  texture {
    pigment { color rgb < 1.0, 1.0, 1.0 > }
    finish { diffuse 0.5 specular 0.5 roughness 0.005 ambient 0.1 }
  }

#declare tinta_silver = 
  texture {
    pigment { color rgb < 1.0, 1.0, 1.0 > }
    finish { diffuse 0.5 specular 0.5 roughness 0.005 ambient 0.2 reflection 0.2 }
  }

#declare aro =
  difference{
    difference {
      sphere {
        < 2, 2, 1 >,0.7
        texture { tinta_yellow }
      }
      sphere {
        < 2, 2, 1 >,0.65
        texture { tinta_yellow }
      }
    }
    box{
      <3, 0, 0>, <0, 3, 0.8>
      texture { tinta_yellow }
    }

    box{
      <3, 0, 1.2>, <0, 3, 2>
      texture { tinta_yellow }
    }
  }

#declare caveira =
  difference {
    intersection {
      box{
        <1.6, 1.3, 0.5>, <2.4, 1.25, 1.5>
        texture { tinta_silver }
      }
      sphere {
        < 2, 1.3, 1>,0.4
        texture { tinta_silver }
      } 
    }

    sphere {
      <2.4, 1.3, 0.8>, 0.2
      texture { tinta_silver }
    }

    sphere {
      <1.6, 1.3, 0.8>, 0.2
      texture { tinta_silver }
    }
    
    box{
      <2.15, 1.28, 0.5>, <2.2, 1.20, 0.8>
      texture { tinta_silver }
    }

    box{
      <2.05, 1.28, 0.5>, <2.1, 1.20, 0.8>
      texture { tinta_silver }
    }

    box{
      <1.95, 1.28, 0.5>, <2.0, 1.20, 0.8>
      texture { tinta_silver }
    }   

    box{
      <1.85, 1.28, 0.5>, <1.9, 1.20, 0.8>
      texture { tinta_silver }
    }   

  }
  
#declare rubi = 
    sphere{
      <2.0 , 1.23, 1.1>, 0.06
      texture { tinta_red }
      interior {ior 1.5}
    }

#declare esmeralda = 
    sphere{
      <1.7 , 1.5, 1.0>, 0.08
      texture { tinta_green }
      interior {ior 1.5}
    }


#declare tab_preto = 
  box {
    < 0.25, 0.00, 0.00 >,
    < 0.00, 0.25, 0.10 >
    texture { tinta_black }
  }

#declare tab_branco = 
  box {
    < 0.25, 0.00, 0.00 >,
    < 0.00, 0.25, 0.10 >
    texture { tinta_white }
  }

#declare j = 0;
#declare shift_y = 0;
#declare roleta = seed(12345);

union {
  
  #while (j<20)

    #declare i = 0;
    #declare shift_x = 0;

    #while (i<20)

      #if (mod(j,2)=0)
        #if (mod(i,2)=0)
            object { tab_preto 
            translate <shift_x,shift_y ,0>
        }
        #else
            object { tab_branco
            translate <shift_x,shift_y ,0>
        }
        #end
      #else
        #if (mod(i,2)=0)
            object { tab_branco 
            translate <shift_x,shift_y ,0>
        }
        #else
            object { tab_preto
            translate <shift_x,shift_y ,0>
        }
        #end
      #end

      #declare shift_x = shift_x+0.25;
      #declare i = i+1;
    #end

    #declare j = j+1;
    #declare shift_y = shift_y+0.25;

  #end

  union{
    union{
      object { aro }
      object {caveira}
    }
    object { rubi 
      translate <-0.15, 0, 0>
    }
    object { rubi 
      translate <0.15, 0, 0>
    }
    object { esmeralda 
      translate <-0.3, 0.05, 0>
    }
    object { esmeralda 
      translate <-0.3, 0.95, 0>
    }
    object { esmeralda 
      translate <0.90, 0.05, 0>
    }
    object { esmeralda 
      translate <0.90, 0.95, 0>
    }
  }
}

// Original camera parameters:
// #local cam_ctr = <7.00,7.00,-10.00>
// #local cam_vec = (<-0.50,-0.50,4.00>-<7.00,7.00,-10.00>)
// #local cam_sky = z

sphere { < 0,0,0>, 0.5 texture{ tinta_yellow } }

#include "camlight.inc"
camlight(<2.00,2.00,0.75>,<10,-10,6>,3.0,z,1.0)