// Terceiro Exercicio de MC930
// Editado em 19/10
// Fabio Yuasa Niizu RA:962325

background{ color rgb < 1,1, 1 > }

light_source {
  < 5.00, -20.00, 5.00 >
  color rgb < 1.00, 1.00, 1.00 >
}

camera {
  location  <  5.00, -14.00, 5.00 >
  right     < -1.20, 0.00, 0.00 >
  up        <  0.00, 0.00, 0.90 >
  sky       <  0.00, 0.00, 1.00 >
  look_at   <  0.00, 0.00, 0.00 >
}

#declare raio = 2.000;

#declare tinta_red =
  texture {
    pigment { color rgb < 1, 0, 0 > }
    finish { diffuse 0.5 specular 0.5 roughness 0.005 ambient 0.1 }
  }

#declare tinta_green =
  texture {
    pigment { color rgb < 0, 1, 0 > }
    normal { bumps 0.5 scale 0.50 }
    finish { phong 1 }
  }

#declare tinta_roxo =
  texture {
    pigment { color rgb < 0.5, 0, 1 > }
    finish { diffuse 0.5 specular 0.5 roughness 0.005 ambient 0.1 }
  }

#declare bolaSuperior =
  sphere {
    < 0, 0.00, 2.00 >, 2.00
    texture { tinta_green }
  }

#declare bolaInferior =
  sphere {
    < 0, 0.00, -2.00 >, 2.00
    texture { tinta_green }
  }

#declare cilindro =
  cylinder {
    < 0.00, 0.00, 2.00 >,
    < 0.00, 0.00, -2.00 >,
    2.00
    texture { tinta_green }
  }

#declare Corte =
  box {
    <  0, -10,   0>,  // Near lower left corner
    < 10,  10,  10>
    texture { tinta_red }
  }

#declare bolaSuperior2 =
  sphere {
    < 0, 0.00, 2.00 >, 1.95
    texture { tinta_red }
  }

#declare bolaInferior2 =
  sphere {
    < 0, 0.00, -2.00 >, 1.95
    texture { tinta_red }
  }

#declare cilindro2 =
  cylinder {
    < 0.00, 0.00, 2.00 >,
    < 0.00, 0.00, -2.00 >,
    1.95
    texture { tinta_red }
  }

#declare Corte2 =
  box {
    <  0.05, -10,   0.05>,  // Near lower left corner
    < 10,  10,  10>
    texture { tinta_red }
  }

#declare bolaSuperior3 =
  sphere {
    < 0, 0.00, 2.00 >, 1.5
    texture { tinta_roxo }
  }

#declare bolaInferior3 =
  sphere {
    < 0, 0.00, -2.00 >, 1.5
    texture { tinta_roxo}
  }

#declare cilindro3 =
  cylinder {
    < 0.00, 0.00, 2.00 >,
    < 0.00, 0.00, -2.00 >,
    1.5
    texture { tinta_roxo }
  }

// Aqui está a cena, finalmente:

difference {
    union {
     object { bolaSuperior }
     object { bolaInferior }
     object { cilindro }
     }
    Corte
}

difference {
    union {
     object { bolaSuperior2 }
     object { bolaInferior2 }
     object { cilindro2 }
     }
    Corte2
}

union {
     object { bolaSuperior3 }
     object { bolaInferior3 }
     object { cilindro3 }
}