// Desenho do auditorio POV-ray
// Last edited on 2020-10-14 20:51:00 by Guilherme Londe

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

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

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

#declare tx_fosca = 
  texture{
    pigment{ color rgb < 1.00, 0.30, 0.10 > }
    finish{ diffuse 0.9 ambient 0.1 }
  }

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

// Partes da cena:
 
#macro cadeira(livre)
  union{
    box{
      <-0.2, -0.1, 0.5>
      <0.2, -0.15, 1.0>
      texture{ tx_plastico}
    }
    box{
      <-0.2, 0.3, 0.45>
      <0.2, -0.1, 0.5>
      texture{tx_plastico}
    }
    box{
      <-0.2, -0.1, 0>
      <-0.15, -0.15, 0.5>
      texture{tx_plastico}
    }
    box{
      <0.15, -0.1, 0>
      <0.2, -0.15, 0.5>
      texture{tx_plastico}
    }
    box{
      <-0.2, 0.3, 0>
      <-0.15, 0.25, 0.5>
      texture{tx_plastico}
    }
    box{
      <0.15, 0.3, 0>
      <0.2, 0.25, 0.5>
      texture{tx_plastico}
    }
    #if(livre = 1)
      cylinder{
        <-0.2, -0.09, 0.5>,
        <0.2, -0.09, 1>,
        0.01
        texture{tx_fosca}
      }
      cylinder{
        <0.2, -0.09, 0.5>,
        <-0.2, -0.09, 1>,
        0.01
        texture{tx_fosca}
      }
    #end
  }
#end 
  
#macro auditorio(n, m)
  union{
    #local i = 0;
    #while(i < n)
      #local j = 0;
      #while(j < m)
        #local livre = mod(i+j, 2);
        object {cadeira(livre) translate<i*1.2, j*1.2, 0>}
        #local j = j+1;
      #end
      #local i = i+1;
    #end
  }
#end

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

#include "eixos.inc"

// Aqui está a cena, finalmente:

union{

  object{auditorio(5, 4) translate<0, 0, 0>}
  object{auditorio(5, 4) translate<-7, 0, 0>}

}

#include "camlight.inc"
#declare centro_cena = < 0.00, 0.00, 1.50 >;
#declare raio_cena = 7.0;
#declare dir_camera = < -1.00, 5.00, 1.00 >;
#declare dist_camera = raio_cena;
#declare intens_luz = 1.20;
camlight(centro_cena, raio_cena, dir_camera, dist_camera , z, intens_luz)