background{ color rgb < 1, 1, 1 > }

#declare steel_1 = // aço
  texture{
    pigment{ color rgb < 0.70, 0.70, 0.70 > }
    finish{ diffuse 0.5 ambient 0.1 brilliance 1 reflection 0.1 specular 0.2 roughness 0.5}
  }

#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_2 = 
  texture{
    pigment{ color rgb < 0.30, 0.30, 0.30 > }
    finish{ diffuse 0.5 ambient 0.1 brilliance 1 reflection 0.15 specular 0.2 roughness 0.5}
  }

#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
  }

#declare tx_4 = 
  texture{
    pigment{ color rgb < 0.25, 0.59, 0.04 > }
    finish{ diffuse 0.3 ambient 0.1 specular 0.5 roughness 1 }
  }

#declare tx_woood = 
  texture {
    pigment {color rgb <.52,.37,0.26>}
    finish{ diffuse 0.9}
  }

#include "eixos.inc"
#include "retalho.inc"



#macro desenha (altura, largura, inclinacao)

  #local assento = array[4][4]
  #local assento[0][0] = <0,0   ,0>;
  #local assento[1][0] = <0,largura/3,0>;
  #local assento[2][0] = <0,2*largura/3,0>;
  #local assento[3][0] = <0,largura  ,0>;

  #local assento[0][1] = <-1,0   ,-0.7>;
  #local assento[1][1] = <-1,largura/3,-0.7>;
  #local assento[2][1] = <-1,2*largura/3,-0.7>;
  #local assento[3][1] = <-1,largura  ,-0.7>;

  #local assento[0][2] = <-1 - cos(radians(90-inclinacao)),0          ,sin(radians(90-inclinacao))>;
  #local assento[1][2] = <-1 - cos(radians(90-inclinacao)),largura/3  ,sin(radians(90-inclinacao))>;
  #local assento[2][2] = <-1 - cos(radians(90-inclinacao)),2*largura/3,sin(radians(90-inclinacao))>;
  #local assento[3][2] = <-1 - cos(radians(90-inclinacao)),largura    ,sin(radians(90-inclinacao))>;

  #local assento[0][3] = <-1 - 2*cos(radians(90-inclinacao)),0   ,2*sin(radians(90-inclinacao))>;
  #local assento[1][3] = <-1 - 2*cos(radians(90-inclinacao)),largura/3,2*sin(radians(90-inclinacao))>;
  #local assento[2][3] = <-1 - 2*cos(radians(90-inclinacao)),2*largura/3,2*sin(radians(90-inclinacao))>;
  #local assento[3][3] = <-1 - 2*cos(radians(90-inclinacao)),largura  ,2*sin(radians(90-inclinacao))>;


  #local perna = array[4][4]
  #local perna[0][0] = assento[0][0];
  #local perna[1][0] = assento[1][0];
  #local perna[2][0] = assento[2][0];
  #local perna[3][0] = assento[3][0];

  #local perna[0][1] = 2*assento[0][0] - assento[0][1]; 
  #local perna[1][1] = 2*assento[1][0] - assento[1][1] ;
  #local perna[2][1] = 2*assento[2][0] - assento[2][1] ;
  #local perna[3][1] = 2*assento[3][0] - assento[3][1] ;

  #local perna[0][2] = <+0.6,0   ,-1>;
  #local perna[1][2] = <+0.6,largura/3,-1>;
  #local perna[2][2] = <+0.6,2*largura/3,-1>;
  #local perna[3][2] = <+0.6,largura  ,-1>;

  #local perna[0][3] = <1.5,0   ,-1.5>;
  #local perna[1][3] = <1.5,largura/3,-1.5>;
  #local perna[2][3] = <1.5,2*largura/3,-1.5>;
  #local perna[3][3] = <1.5,largura  ,-1.5>;


  #local braco = array[4][4]
  #local braco[0][0] = assento[3][0];
  #local braco[1][0] = assento[3][1];
  #local braco[2][0] = assento[3][2];
  #local braco[3][0] = assento[3][3];

  #local braco[0][1] = 2*assento[3][0] - assento[2][0]; 
  #local braco[1][1] = 2*assento[3][1] - assento[2][1] ;
  #local braco[2][1] = 2*assento[3][2] - assento[2][2] ;
  #local braco[3][1] = 2*assento[3][3] - assento[2][3] ;

  #local braco[0][2] = <-1, largura+0.2, 0>;
  #local braco[1][2] = <-1, largura+0.2, 0.33>;
  #local braco[2][2] = <-1, largura+0.2, 0.66>;
  #local braco[3][2] = <-1, largura+0.2, 1>;

  #local braco[0][3] = <-0, largura+1, 1>;
  #local braco[1][3] = <-0.33, largura+1, 1>;
  #local braco[2][3] = <-0.66, largura+1, 1>;
  #local braco[3][3] = <-1, largura+1, 1>;
  union {
  object{retalho(assento,0, tx_woood, tx_plastico, 0,0,1,1) translate <0, 0, altura>}
  object{retalho(perna,0, tx_woood, tx_woood, 0,0,1,1) translate <0, 0, altura>}
  object{retalho(braco,0.0, tx_2, tx_2, 0,0,1,1) translate <0, 0, altura>} 
  }

#end


#declare altu1 = 0;
#declare larg1 = 0.5;
#declare incl1 = 20;


#declare altu2 = 1;
#declare larg2 = 0.75;
#declare incl2 = 45;


union {
  //object{eixos(3)}
  object{desenha(altu1,larg1,incl1)}
  object{desenha(altu1,larg1,incl1) scale <1, -1.0, 1.0>}

  object{desenha(altu2,larg2,incl2)translate <0, larg1*4+5, 0>}
  object{desenha(altu2,larg2,incl2) scale <1, -1.0, 1.0> translate <0, larg1*4+5, 0> }

}


#include "camlight.inc"
#declare centro_cena = < 0.00, 0.10, 0.00 >;
#declare raio_cena = 10.0;
#declare dir_camera = < 1, 1.00, 1.00 >;
#declare dist_camera = 5*raio_cena;
#declare intens_luz = 1.20;
camlight(centro_cena, raio_cena, dir_camera, dist_camera , z, intens_luz)