// Exemplo de arquivo de descricao de cena para POV-ray
// Last edited on 2010-03-04 15:44:01 by stolfi

// ======================================================================
// CORES E TEXTURAS

background{ color rgb < 0.75, 0.80, 0.85 > }

#declare tx_plastico = 
  texture{
    pigment{ color rgb < 0.10, 0.80, 1.00 > }
    finish{ diffuse 0.8 ambient 0.1 specular 0.5 roughness 0.005 }
  }

#declare tx_fosca = 
  texture{
    pigment{ color rgb < 1.00, 0.80, 0.10 > }
    finish{ diffuse 0.9 ambient 0.1 }
  }

#declare tx_espelho = 
  texture{
    pigment{ color rgb < 1.00, 0.85, 0.30 > }
    finish{ diffuse 0.2 reflection 0.7*< 1.00, 0.85, 0.30 > ambient 0.1 }
  }

#declare tx_vidro = 
  texture{
    pigment{ color rgb < 0.85, 0.95, 1.00 > filter 0.70 }
    finish{ diffuse 0.03 reflection 0.25 ambient 0.02 specular 0.25 roughness 0.005 }
  }

#declare tx_verde = 
  texture{
    pigment{ color rgb < 0, 1, 0 > }
    finish{ diffuse 0.9 ambient 0.1 }
  }


#declare tx_xadrez =
  texture{
    pigment{ checker color rgb < 0.10, 0.32, 0.60 >, color rgb < 1.00, 0.97, 0.90 > }
    finish{ diffuse 0.9 ambient 0.1 }
    scale 2.0
  }

// ======================================================================
// DESCRIÇÃO DA CENA 

#declare phi = (sqrt(5) - 1)/2;

#declare quantos_valores = 2;
#declare valores = array[quantos_valores];
#declare valores[0] = 31;
#declare valores[1] = 0;

#declare valores2 = array[quantos_valores];
#declare valores2[0] = 31;
#declare valores2[1] = 0;

#declare roleta = seed(417); // gerador aleatorio

#macro dodecaedro()
  intersection {
    plane { < 1, 0,  phi>, 2.13 texture{ tx_vidro } interior{ior 1.5}}
    plane { < 1, 0, -phi>, 2.13 texture{ tx_vidro } interior{ior 1.5}}
    plane { <-1, 0,  phi>, 2.13 texture{ tx_vidro } interior{ior 1.5}}
    plane { <-1, 0, -phi>, 2.13 texture{ tx_vidro } interior{ior 1.5}}
    plane { < phi,  1, 0>, 2.13 texture{ tx_vidro } interior{ior 1.5}}
    plane { <-phi,  1, 0>, 2.13 texture{ tx_vidro } interior{ior 1.5}}
    plane { < phi, -1, 0>, 2.13 texture{ tx_vidro } interior{ior 1.5}}
    plane { <-phi, -1, 0>, 2.13 texture{ tx_vidro } interior{ior 1.5}}
    plane { <0,  phi,  1>, 2.13 texture{ tx_vidro } interior{ior 1.5}}
    plane { <0, -phi,  1>, 2.13 texture{ tx_vidro } interior{ior 1.5}}
    plane { <0,  phi, -1>, 2.13 texture{ tx_vidro } interior{ior 1.5}}
    plane { <0, -phi, -1>, 2.13 texture{ tx_vidro } interior{ior 1.5}}
  }
#end

#macro octaedro(distancia)
  intersection {
    plane { <  1,  1,  1>, distancia texture{ tx_vidro } interior{ior 1.5}}
    plane { <  1,  1, -1>, distancia texture{ tx_vidro } interior{ior 1.5}}
    plane { <  1, -1,  1>, distancia texture{ tx_vidro } interior{ior 1.5}}
    plane { <  1, -1, -1>, distancia texture{ tx_vidro } interior{ior 1.5}}
    plane { < -1,  1,  1>, distancia texture{ tx_vidro } interior{ior 1.5}}
    plane { < -1,  1, -1>, distancia texture{ tx_vidro } interior{ior 1.5}}
    plane { < -1, -1,  1>, distancia texture{ tx_vidro } interior{ior 1.5}}
    plane { < -1, -1, -1>, distancia texture{ tx_vidro } interior{ior 1.5}}
  }
#end

#macro cubo()
  intersection {
    plane { <  1,  0,  0>, 2 texture{ tx_vidro } interior{ior 1.5}}
    plane { < -1,  0,  0>, 2 texture{ tx_vidro } interior{ior 1.5}}
    plane { <  0,  1,  0>, 2 texture{ tx_vidro } interior{ior 1.5}}
    plane { <  0, -1,  0>, 2 texture{ tx_vidro } interior{ior 1.5}}
    plane { <  0,  0,  1>, 2 texture{ tx_vidro } interior{ior 1.5}}
    plane { <  0,  0, -1>, 2 texture{ tx_vidro } interior{ior 1.5}}    
  }
#end

#include "eixos.inc"

union{

  // Dodecaedro + octaedro
  intersection{
    object{ dodecaedro() }
    object{ octaedro(2) }  
  }

  // Octaedro + cubo
  intersection{  
    object{ octaedro(2.31) }
    object{ cubo() }
    translate <8, 0, 0>
  }
  
  // fundo
  box{ <-20,-20,-1>, <+20,+20,0> translate < 0,0,-5 > texture { tx_xadrez } }  
}

#include "camlight.inc"
#declare centro_cena = < 1.00, 0.00, 0.00 >;
#declare raio_cena = 15.0;
//#declare dir_camera = < 14.00, 7.00, 4.00 >;
#declare dir_camera = < 14.00, 7.00, 4.00 >;
#declare dist_camera = 16.0;
#declare intens_luz = 1.00;
camlight(centro_cena, raio_cena, dir_camera, dist_camera , z, intens_luz)