// Terceiro Exercicio Pratico de MC930
// Fabio Rogerio Candido
// Last Edit: 19/10/2000

background{ color rgb < 1.10, 1.10, 1.10 > }

light_source {
  < 5.00, -14.00, 10.00 >
  color rgb < 1.0, 1.0, 1.0 >
} 

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 = 3.000;

#declare verde = 
  texture {
    pigment { color rgb < 0.00, 1.00, 0.00 > }
    finish { diffuse 0.5 specular 0.5 roughness 0.005 ambient 0.1 }
  }

#declare vermelho = 
  texture {
    pigment { color rgb < 1.00, 0.00, 0.00 > }
    normal { bumps 0.7 scale 0.2 }
    finish { diffuse 0.5 specular 0.5 roughness 0.005 ambient 0.1 }
  }
  
#declare bola_sup =
  sphere {
    < 0.00, 0.00, 3.00 >, 3.00 
    texture { verde }
  }
 
#declare bola_inf =
  sphere {
    < 0.00, 0.00, -3.00 >, 3.00 
    texture { verde }
  }

#declare cil_melanc = 
  cylinder {
    < 0.00, 0.00, 3.00 >,
    < 0.00, 0.00,-3.00 >,
    3.00
    texture { verde }
  }

#declare Corte =
  box {
    < -10, -10,   0>,  
    < 10,  10,  10>
  texture { vermelho }
  }

// Cena...

difference {
   union {
     object { bola_inf }
     object { cil_melanc }
   }
   object { Corte }
   texture { vermelho }
}