// Exemplo de arquivo de descricao de cena para POV-ray
// Last edited on 2019-29-03 17:48:09 by Luis Gustavo

// ======================================================================
// 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_vermelho = 
  texture{
    pigment{ color rgb < 0.80, 0.10, 0.10 > }
    finish{ diffuse 0.8 ambient 0.1 specular 0.5 roughness 0.005 }
  }

#declare tx_pink = 
  texture{
    pigment{ color rgb < 0.98, 0.05, 0.75 > }
    finish{ diffuse 0.8 ambient 0.2 specular 0.5 roughness 0.005 }
  }

#declare tx_orange = 
  texture{
    pigment{ color rgb < 0.98, 0.20, 0.20 > }
    finish{ diffuse 0.8 ambient 0.1 specular 0.5 roughness 0.05 }
  }

#declare tx_verde = 
  texture{
    pigment{ color rgb < 0.20, 0.90, 0.10 > }
    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_xadrez =
  texture{
    pigment{ checker color rgb < 0.00, 0.0, 0.00 >, color rgb < 1.00, 0.97, 0.90 > }
    finish{ diffuse 0.9 ambient 0.1 }
    scale 1.0
  }

// ======================================================================
// DESCRIÇÃO DA CENA 
// Partes da cena:
  

#declare bola = 
  union { 
	  
	  sphere{ < 0,0,2 >, 1.50
	  texture{ tx_verde }
	  }
  }


#include "eixos.inc"

// Aqui está a cena, finalmente:


#macro palito(r,n,p,q)
	union{

		#declare xp=p.x;
		#declare xq=q.x;
		
		#while(xp<xq)

			object{ bola translate <xp, p.y, p.z> }
			#declare xp = xp+1/n;

		#end

		#declare yp=p.y;
		#declare yq=q.y;

		#while(yp<yq)

			object{ bola translate <q.x, yp, p.z> }
			#declare yp = yp+1/n;
		#end		

		#declare zp=p.z;
		#declare zq=q.z;

		#while(zp<zq)

			object{ bola translate <q.x, q.y, zp> }
			#declare zp =zp+1/n;
		#end

	}
#end


//b = numero de bolas
//r = raio
#macro roda(a,b,n,r)
 
	union{
		#while (a<b)
			object { bola translate <r*sin(a), 0, r*cos(a)> }
			#declare a = a+1/n;
		#end
	}
#end

 

#declare r = 5;

#declare a = <5,0,0>;
#declare b = <15,0,0>;
object{palito(0,10,a,b)}

#declare c = <20,0,5>;
#declare d = <20,0,15>;
object{palito(0,10,c,d)}

#declare e = <5,0,20>;
#declare f = <15,0,20>;
object{palito(0,10,e,f)}

object{roda(0,3.14/2,100,5) translate <15,0,15>}
object{roda(3.14/2,3.14,100,5) translate <15,0,5>}

#include "camlight.inc"
#declare centro_cena = < 20.00, +20.00, 20.00>;
#declare raio_cena = 50.0;
#declare dir_camera = < 14.00, 7.00, 4.00 >;
#declare dist_camera = 50*raio_cena;
#declare intens_luz = 1.20;
camlight(centro_cena, raio_cena, dir_camera, dist_camera , z, intens_luz)