// 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_vidro =
   texture{
	pigment{color rgb<0,1,1> filter 0.9}
	finish { diffuse 0.8 ambient 0.1 specular 0.5 roughness 0.005}
   }

#declare tx_vermelho=
	texture{ pigment {color rgb<1,0,0>}}

#declare tx_azul=
        texture{ pigment {color rgb<0,0,1>}}


#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 

// Partes da cena:
#declare vazio_12 = (sqrt(5)-1)/2;

#declare chao = 
  box{ <-20,-20,-1>, <+20,+20,0> texture { tx_xadrez}}

#declare dodecaedro =
intersection{
        plane{<+1,0,+vazio_12>,1}
        plane{<-1,0,+vazio_12>,1}
        plane{<+1,0,-vazio_12>,1}
        plane{<-1,0,-vazio_12>,1}

        plane{<0,+vazio_12,+1>,1}
        plane{<0,+vazio_12,-1>,1}
        plane{<0,-vazio_12,+1>,1}
        plane{<0,-vazio_12,-1>,1}

        plane{<+vazio_12,+1,0>,1}
        plane{<+vazio_12,-1,0>,1}
        plane{<-vazio_12,+1,0>,1}
        plane{<-vazio_12,-1,0>,1}
	bounded_by { sphere {<0,0,0>,2}}
	scale 3
}

#declare octaedro=
intersection{
        plane{<+1,+1,+1>,1}
        plane{<+1,+1,-1>,1}
        plane{<+1,-1,+1>,1}
        plane{<+1,-1,-1>,1}

        plane{<-1,+1,+1>,1}
        plane{<-1,-1,+1>,1}
        plane{<-1,+1,-1>,1}
        plane{<-1,-1,-1>,1}
	bounded_by { sphere {<0,0,0>,2}}
	scale 3
}

#declare icoedro=
intersection{
	plane{<+1,0,+vazio_12>,1}
        plane{<-1,0,+vazio_12>,1}
        plane{<+1,0,-vazio_12>,1}
        plane{<-1,0,-vazio_12>,1}

        plane{<0,+vazio_12,+1>,1}
        plane{<0,+vazio_12,-1>,1}
        plane{<0,-vazio_12,+1>,1}
        plane{<0,-vazio_12,-1>,1}

        plane{<+vazio_12,+1,0>,1}
        plane{<+vazio_12,-1,0>,1}
        plane{<-vazio_12,+1,0>,1}
        plane{<-vazio_12,-1,0>,1}

        plane{<+1,+1,+1>,1}
        plane{<+1,+1,-1>,1}
        plane{<+1,-1,+1>,1}
        plane{<+1,-1,-1>,1}

        plane{<-1,+1,+1>,1}
        plane{<-1,-1,+1>,1}
        plane{<-1,+1,-1>,1}
        plane{<-1,-1,-1>,1}
        bounded_by { sphere {<0,0,0>,2}}
        scale 3
}

#include "eixos.inc"

// Aqui está a cena, finalmente:
union{

//object {dodecaedro translate 3*z texture { tx_vidro } interior { ior 1.5}}
//object {octaedro translate 3*z texture { tx_vidro } interior { ior 1.5}}
//object {icoedro translate 3*z texture { tx_vidro } interior { ior 1.2}}
intersection{
	object{octaedro  scale 1.16}
	box{<-1,-1,-1>,<1,1,1> scale 3}
	texture{tx_vidro} interior { ior 1.5}
	translate <0,-5,2>
	}

intersection{
        object{octaedro  scale 1.16}
	object{dodecaedro }
        texture{tx_vidro} interior { ior 1.5}
        translate <0,5,2>
        }


object { chao translate<0,0,-3>}

}

#include "camlight.inc"
#declare centro_cena = < 0.00, 0.00, 1.00 >;
#declare raio_cena = 15.0;
#declare dir_camera = < 20, 0, 15.00 >;
#declare dist_camera = 15.0;
#declare intens_luz = 1.00;
camlight(centro_cena, raio_cena, dir_camera, dist_camera , z, intens_luz)