// 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_fosca = 
  texture{
    pigment{ color rgb < 1.00, 0.80, 0.10 > }
    finish{ diffuse 0.9 ambient 0.1 }
  }

#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 < 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 chave =
   box{
      <0,0,0>
      <.1,.2,.3>
	texture{ tx_plastico }
}

#declare mold1 =
   box{
      <0,-.2,-.3>
      <0,.3,.3>
	texture{ tx_plastico }
}

#declare mold2 =
   box{
      <-1,-.15,-.25>
      <1,.25,.25>
	texture{ tx_plastico }
}

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



#macro bit(valor,def)
union{
#if(def=0) 

#if(valor=1)
   object { chave rotate<0,45,0>}
#else
   object { chave rotate<0,135,0>} 
#end
#else 
 object { chave rotate<0,90,0>}
#end
}
#end

#declare roleta = seed(417);

#macro fileira(n,valor,prob)
#local i=0; 
#local numero = valor; 
#local p=1;
union{
#while (i<n)
	#local def = (rand(roleta) < prob);
	object{ bit(mod(numero,2),def) translate<0,p,0> }
	
    #local numero=int(numero/2);
    #local i = i+1;
    #local p=p-0.5;
   #end
}
#end 


#declare vetor = array[5];
#declare vetor[0] = 6;
#declare vetor[1] = 9;
#declare vetor[2] = 13;
#declare vetor[3] = 7;

#macro abaco(m,n,valor,prob)
#local i=0;
#local p=-0.5;


union{
	difference{
            object{mold1 scale<1,n*1.2,m> translate<0,-.4,0.2> }
	    object{mold2 scale<1,n*1.2,m> translate<0,-.4,0.2>}	 
          }

	#while(i<m)
	 object{ fileira(n,valor[i],prob) translate<0,0,p>}
	 #local i = i+1;
	 #local p = p+0.5;
	#end
}
#end


#include "eixos.inc"

// Aqui está a cena, finalmente:

  object{ eixos(3.00) }
  
  
  
  object{ abaco(4,5,vetor,.9) translate <0,-1,0> }
  object{ abaco(4,6,vetor,.1) translate <0,3,0> }


  

#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 = 16.0;
#declare intens_luz = 1.00;
camlight(centro_cena, raio_cena, dir_camera, dist_camera , z, intens_luz)