// 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 < 0.65, 0.75, 0.85 > }

#declare tx_vidro1 = 
  texture{
    pigment{ color rgb < 0.65, 0.75, 1.00 > filter 0.70 }
    finish{ diffuse 0.03 reflection 0.15 ambient 0.02 specular 0.25 roughness 0.005 }
  }

#declare tx_vidro2 = 
  texture{
    pigment{ color rgb < 0.1, 0.5, 0.32 > filter 0.70 }
    finish{ diffuse 0.03 reflection 0.15 ambient 0.02 specular 0.25 roughness 0.005 }
  }

#declare tx_vidro3 = 
  texture{
    pigment{ color rgb < 0.85, 0.45, 0.40 > filter 0.70 }
    finish{ diffuse 0.03 reflection 0.15 ambient 0.02 specular 0.25 roughness 0.005 }
  }

#declare tx_xadrez =
  texture{
    pigment{ checker color rgb < 0.15, 0.15, 0.15 >, color rgb < 0.10, 0.32, 0.60 > }
    finish{ diffuse 0.9 ambient 0.1 }
    scale 2.0
  }

#declare phi = 2;

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

// Partes da cena:

#include "textures.inc"

#declare chao = 
  box{ <-50,-50,-1>, <+50,+50,0>
  texture {tx_xadrez}
}

#macro dodeca(s) 
  intersection{
    plane{ <1, 0, phi>, s interior {ior 1.6}}
    plane{ <1, 0, -phi>, s interior {ior 1.6}}
    plane{ <-1, 0, phi>, s interior {ior 1.6}}
    plane{ <-1, 0, -phi>, s interior {ior 1.6}}
    plane{ <phi, 1, 0>, s interior {ior 1.6}}
    plane{ <phi, -1, 0>, s interior {ior 1.6}}
    plane{ <-phi, 1, 0>, s interior {ior 1.6}}
    plane{ <-phi, -1, 0>, s interior {ior 1.6}}
    plane{ <0, phi, 1>, s interior {ior 1.6}}
    plane{ <0, phi, -1>, s interior {ior 1.6}}
    plane{ <0, -phi, 1>, s interior {ior 1.6}}
    plane{ <0, -phi, -1>, s interior {ior 1.6}}
    texture {tx_vidro1}
    bounded_by{ sphere{ <0,0,0>, 2*s}}
  }
#end

#macro octa(s) 
  intersection{
    plane{ <1, 1, 1>, s interior {ior 1.6}}
    plane{ <-1, 1, 1>, s interior {ior 1.6}}
    plane{ <1, -1, 1>, s interior {ior 1.6}}
    plane{ <1, 1, -1>, s interior {ior 1.6}}
    plane{ <-1, -1, 1>, s interior {ior 1.6}}
    plane{ <-1, 1, -1>, s interior {ior 1.6}}
    plane{ <1, -1, -1>, s interior {ior 1.6}}
    plane{ <-1, -1, -1>, s interior {ior 1.6}}
    texture {tx_vidro2}
    bounded_by{ sphere{ <0,0,0>, 2*s}}
  }
#end

#macro cubo(s) 
  intersection{
    plane{ <1, 0, 0>, s interior {ior 1.6}}
    plane{ <-1, 0, 0>, s interior {ior 1.6}}
    plane{ <0, 0, 1>, s interior {ior 1.6}}
    plane{ <0, 0, -1>, s interior {ior 1.6}}
    plane{ <0, -1, 0>, s interior {ior 1.6}}
    plane{ <0, 1, 0>, s interior {ior 1.6}}
    texture {tx_vidro3}
    bounded_by{ sphere{ <0,0,0>, 2*s}}
  }
#end

// ======================================================================
// IBAGENS

#include "eixos.inc"

// Aqui está a cena, finalmente:
object{ chao  translate < 0,0,-5 >}
intersection{
  object {cubo(1) rotate <0,0,45>}
  object {octa(1.1)}
  translate <-2.5, -2, 0>
}
intersection{
  object {cubo(1)}
  object {octa(1.15)}
  translate <2.5, -2, 0>
}
object {dodeca(1)  translate <-2.5, 2, 0>}
intersection{
  object {dodeca(1.03)}
  object {octa(1)}
  translate <2.5, 2, 0>
}

#include "camlight.inc"
#declare centro_cena = <0.00, 0.00, 0.00 >;
#declare raio_cena = 8.0;
#declare dir_camera = < 12.00, 2.0, 7.50 >;
#declare dist_camera = 10.0;
#declare intens_luz = 1.00;
camlight(centro_cena, raio_cena, dir_camera, dist_camera , z, intens_luz)