// Quinto Exercicio Pratico de MC930
// Fabio Rogerio Candido
// Last Edit: 07/11/2000

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, 10.00 >
  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 fundo =
  plane { y,-12
    texture {
      pigment { color rgb < 1.00, 1.00, 1.00 > }
      finish { ambient .25 diffuse .6 crand .5 }
      normal { ripples .35 turbulence .25 frequency 10 }
      scale 10
      translate 50*x
    }
  }

#declare A1 = < -4, 0, 0 >;
#declare A2 = < -1, 0, 0 >;
#declare A3 = < -0.5, 2, 0 >;
#declare A4 = <  0, 3, 0 >;
#declare A5 = <  0, 3, 0 >;
#declare A6 = < 0.5, 2, 0 >;
#declare A7 = < 1, 0, 0 >;
#declare A8 = < 4, 0, 0 >;

#declare B1 = < -4, 0, 1 >;
#declare B2 = < -1, 0, 1 >;
#declare B3 = < -0.5, 2, 1 >;
#declare B4 = <  0, 3, 1 >;
#declare B5 = <  0, 3, 1 >;
#declare B6 = < 0.5, 2, 1 >;
#declare B7 = < 1, 0, 1 >;
#declare B8 = < 4, 0, 1 >;

#declare C1 = < -4, 0, 2 >;
#declare C2 = < -1, 0, 2 >;
#declare C3 = < -0.5, 2, 2 >;
#declare C4 = <  0, 3, 2 >;
#declare C5 = <  0, 3, 2 >;
#declare C6 = < 0.5, 2, 2 >;
#declare C7 = < 1, 0, 2 >;
#declare C8 = < 4, 0, 2 >;

#declare D1 = < -4, 0, 3 >;
#declare D2 = < -1, 0, 3 >;
#declare D3 = < -0.5, 2, 3 >;
#declare D4 = <  0, 3, 3 >;
#declare D5 = <  0, 3, 3 >;
#declare D6 = < 0.5, 2, 3 >;
#declare D7 = < 1, 0, 3 >;
#declare D8 = < 4, 0, 3 >;

#declare patchA =
  bicubic_patch {
    type 0
    u_steps 4
    v_steps 4
    flatness 0.1
    A1, A2, A3, A4,
    B1, B2, B3, B4,
    C1, C2, C3, C4,
    D1, D2, D3, D4
    texture { verde }
  }

#declare patchB = 
  bicubic_patch {
    type 0
    u_steps 4
    v_steps 4
    flatness 0.1
    A5, A6, A7, A8,
    B5, B6, B7, B8,
    C5, C6, C7, C8,
    D5, D6, D7, D8
    texture { verde }
  }

// Cena...

object { patchA }
object { patchB }