// Exemplo de arquivo de descricao de cena para POV-ray
// Last edited on 2020-09-30 19:57:13 by jstolfi

// ======================================================================
// 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, 1.00 > }
    finish{ diffuse 0.8 ambient 0.1 specular 0.5 roughness 0.005 }
  }

#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_xadrez =
  texture{
    pigment{ checker color rgb < 1, 0, 0 >, color rgb < 0, 0, 0 > }
    finish{ diffuse 0.9 ambient 0.1 }
    scale 2.0
  }

// ======================================================================
// DESCRI��O DA CENA 

#declare raioSust = 0.25;
#declare raioPoste = 0.5;
#declare raioPerna = 0.5;

// Partes da cena:
  
#declare BolaChao = 
  sphere{ < 0, -1.75, -2 >, raioSust }
 
#declare BolaTopo = 
  sphere{ < 0, -2.75, 4>, raioSust }
 
  
#declare HasteSustentacao = 
  cylinder{ < 0, -1.75, -2 >, < 0, -2.75, 4 >, raioSust }
  
#declare FrenteEncosto = 
  cylinder{ < -2, 2, 0 >, < 2, 2, 0 >, raioPoste }

#declare Buracos = 
  cylinder{ < 1, -4, 2 >, < 1, 4, 2 >, 0.25 }

#declare Buracos2 = 
  cylinder{ < -0.5, -4, 2 >, < -0.5, 4, 2 >, 0.25 }

#declare Encosto = 
  box{ <-2,-2.2, 1>, <+2,-2, +3> }

#declare Assento = 
  box{ <-2,-2, 0>, <+2,+2, 0.5> }

#declare Perna1 = cone {
  <-1, 0, -2>, 0 // <x, y, z>, center & radius of one end
  <-1, 0, 0>, raioPerna // <x, y, z>, center & radius of the other end
}

#declare Perna2 = cone {
  <1, 0, -2>, 0 // <x, y, z>, center & radius of one end
  <1, 0, 0>, raioPerna // <x, y, z>, center & radius of the other end
}


#include "eixos.inc"

// Aqui est� a cena, finalmente:

union{
  object{ Assento texture { tx_plastico } }
  object{ FrenteEncosto texture { tx_fosca } }
  object{ Perna1 texture { tx_vidro } }
  object{ Perna2 texture { tx_vidro } }

  object{ HasteSustentacao texture { tx_fosca } }
  object{ BolaChao texture { tx_vidro } }
  object{ BolaTopo texture { tx_vidro } }

  difference{ 
    object{ Encosto texture { tx_plastico } }
    union {
      object{ Buracos }
      object{ Buracos2 }
    }
  }
}

#include "camlight.inc"
#declare centro_cena = < 0.00, 0.00, 1.00 >;
#declare raio_cena = 6.0;
#declare dir_camera = < 14.00, 7.00, 4.00 >;
#declare dist_camera = 5*raio_cena;
#declare intens_luz = 1.20;
camlight(centro_cena, raio_cena, dir_camera, dist_camera , z, intens_luz)