// 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_vermelho = 
  texture{
    pigment{ color rgb < 1, 0, 0 > }
    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
  }

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


// Partes da cena:
  

#declare bolota = 
  sphere{ < 0,0,0 >, 2 }
 
#declare din =
     box{ <0,0,0>, <0.2,0.5,4>
     texture{  tx_fosca }
      }


  



#macro galhos (tam)
union{
	cylinder{
    < 0.00, 0.00, 0.00 >,
    < 0, 0, tam >,
    0.1
    texture{ tx_plastico }
  }

  cylinder{
    < 0.00, -tam/4, 3*(tam/4) >,
    < 0, tam/4, 3*(tam/4) >,
    0.1
    texture{ tx_plastico }
  }
}
#end

#macro arbusto (tam)
union{
	object { galhos (tam) }
	object{ galhos (tam) rotate <0,-45,0> translate < 0,0,tam>  }
	object{ galhos (tam) rotate <0,45,0> translate < 0,0,tam>  }
	object{ galhos (tam) rotate <0,45,-90> translate < 0,0,tam>  }
	object{ galhos (tam) rotate <0,45,90> translate < 0,0,tam>  }
	
	
}
#end

#macro arvore (n, tam)
union{
	#if (n=0)
	
	 	//object {galhos (tam)}

	#else
			object {galhos (tam)}
			object{ arvore (n-1, tam/1.5) rotate <0,-45,0> translate < 0,0,tam/1.5>  }
			object{ arvore (n-1, tam/1.5) rotate <0,45,0> translate < 0,0,tam/1.5>  }
			object{ arvore (n-1, tam/1.5) rotate <0,45,-90> translate < 0,0,tam/1.5>  }
			object{ arvore (n-1, tam/1.5) rotate <0,45,90> translate < 0,0,tam/1.5>  }	
		
	#end
}
#end


#include "eixos.inc"

// Aqui está a cena, finalmente:

union{
  object{ eixos(3.00) }

  object { arvore (5, 5) }
		      
  
 
  
}

#include "camlight.inc"
#declare centro_cena = < 0.00, 0.00, 1.00 >;
#declare raio_cena = 13.0;
#declare dir_camera = < 14, 20, 15 >;
#declare dist_camera = 16.0;
#declare intens_luz = 1.00;
camlight(centro_cena, raio_cena, dir_camera, dist_camera , z, intens_luz)