// Monica Aparecida Pires Nascimento RA 7873 
// Mestre : Stolfi - Aula 30/06/01 - Carroceria
// Last edited on 2001-07-31 15:57:46 by stolfi
  
#include "textures.inc"       

# declare cor_vermelha = < 2.0,0.0,0.0 >;
# declare cor_branca = < 1.0,1.0,1.0 >;
# declare cor_azul = < 0.0,0.0,1.0 >;    

#declare ctr = <10,-2,-2>

camera {
   location ctr + <15,15,10>     
   right <-1.2,0,0>
   up <0,0.9,0>
   sky y
   look_at  ctr
}

background{ color rgb < 0.0, 0.0, 0.5> }
light_source { < 70, 500, 70> color rgb 1.2*<1,1,1> }


#declare tinta_A = texture {
    pigment { color rgb < 1,1,0> }
    finish { diffuse 0.8 ambient 0.3 specular 0.2 roughness 0.004 reflection 0.3 }
}

// Declaracao das coordenadas
#declare A1 = <6, 3, 2>;
#declare A2 = <6, 0, 1>;
#declare A3 = <6, 0, 1>;
#declare A4 = <6, 2, 2>;
#declare A5 = <11, 5, 3>;
#declare A6 = <9, 1, 1>;
#declare A7 = <9, 1, 1>;
#declare A8 = <8,1, 1>;
#declare A9 = <13, 5, 3>;
#declare A10 = <12, 1.5, 1>;
#declare A11 = <12, 1, 2>;
#declare A12 = <13, -5, -3>;
#declare A13 = <18, 4, 3>;
#declare A14 = <14, 2, 1>;
#declare A15 = <26, -1, 2>;
#declare A16 = <21, -2, -5>;


// Exemplo de BICUBIC 
//bicubic_patch {
//    type 1 flatness 0.0100 u_steps 3 v_steps 3,
//    variaveis declaradas e Texture { } } 
    

#declare patchA= bicubic_patch {
  type 1
  flatness 0.1
  u_steps 5
  v_steps 5, A1, A2, A3, A4, A5,A6, A7, A8, A9, A10, A11, A12, A13, A14, A15,
A16 texture { Copper_Metal }} 


plane { y, 0
   pigment {
   checker < 1.0,1.0,1.0>, < 0.0,0.0,0.30 >}
   finish { ambient 0.4 diffuse 0.6 }
   translate -4*y
}


// Para verificar a posicao dos pontos 
sphere { A1, 0.1 texture {pigment {color rgb <1,0,0> }}}
sphere { A2, 0.1 texture {pigment {color rgb <1,0,0> }}}
sphere { A3, 0.1 texture {pigment {color rgb <1,0,0> }}}
sphere { A4, 0.1 texture {pigment {color rgb <1,0,0> }}}
sphere { A5, 0.1 texture {pigment {color rgb <1,0,0> }}}
sphere { A6, 0.1 texture {pigment {color rgb <1,0,0> }}}
sphere { A7, 0.1 texture {pigment {color rgb <1,0,0> }}}
sphere { A8, 0.1 texture {pigment {color rgb <1,0,0> }}}
sphere { A9, 0.1 texture {pigment {color rgb <1,0,0> }}}
sphere { A10, 0.1 texture {pigment {color rgb <1,0,0> }}}
sphere { A11, 0.1 texture {pigment {color rgb <1,0,0> }}}
sphere { A12, 0.1 texture {pigment {color rgb <1,0,0> }}}
sphere { A13, 0.1 texture {pigment {color rgb <1,0,0> }}}
sphere { A14, 0.1 texture {pigment {color rgb <1,0,0> }}}
sphere { A15, 0.1 texture {pigment {color rgb <1,0,0> }}}
sphere { A16, 0.1 texture {pigment {color rgb <1,0,0> }}}


// figura final 
object {patchA}