// CORES E TEXTURAS

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

#declare tx_1 = 
  texture{
    pigment{ color rgb < 0.92, 0.51, 0.23 >}
    finish{ diffuse 0.7 ambient 0 specular 0.5 roughness 0.9 }
  }

#declare tx_2 = 
  texture{
    pigment{ color rgb < 0.5, 0.5, 0.50 > }
    finish{ diffuse 0.2 reflection 0.2 ambient 0.1 }
  }

#declare tx_prata = 
  texture{
    pigment{ color rgb < 0.3, 0.3, 0.3 > }
    finish{ diffuse 0.2 reflection 0.6 brilliance 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}
  }


#declare tx_xadrez =
  texture{
    pigment{ checker color rgb < 0.5, 0.44, 0.98 >, color rgb < 0.00, 0.86, 0.29 > }
    finish{ diffuse 0.9 ambient 0.1 }
    scale 2.0
  }

//MACROS

#macro garra(angulo)
	union{
		object{cilindro_grande}
		object{cilindro_pequeno
			rotate <120,0,0>

		}
		object{cilindro_pequeno
			rotate <0,120,0>
		}

		object{cilindro_pequeno
			rotate <0,-120,0>
		}

		object{cilindro_pequeno
			rotate <-120,0,0>
		}

		object{cilindro_pequeno
			rotate <angulo,0,0>
			translate <0,-2.5,-1.4>

		}
		object{cilindro_pequeno
			rotate <0,angulo,0>
			translate <2.5,0,-1.4>
		}

		object{cilindro_pequeno
			rotate <0,-angulo,0>
			translate <-2.5,0,-1.4>
		}

		object{cilindro_pequeno
			rotate <-angulo,0,0>
			translate <0,2.5,-1.4>
		}

	}

#end

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

// Partes da cena:
  
#declare raio = 1;

#declare bandeija =
	box{ <-15,-10,0>, <15,10,1>
		texture{tx_prata}
}

#declare alca = 
	torus{ 2*raio, 0.3*raio
		texture{tx_prata}
}

#declare cilindro_grande =
  	cylinder{ < 0,0,0 >, <0,0,3>, 0.5*raio
		texture{tx_2} 
}

#declare cilindro_pequeno =
	cylinder{ <0,0,0>, <0,0,3>, 0.3*raio
		texture{tx_2}
}

#declare biscoito =
	torus{ 2*raio,raio}

#include "eixos.inc"

union{

	object{bandeija}
	difference{
		object{alca}
		object{
			box{ <0,0,0>, <-2,-2,-2>}
		}
		rotate<0,0,90>
		translate <-14,0,0>
	}
	difference{
		object{alca}
		object{
			box{ <0,0,0>, <-2,-2,-2>}
		}
		rotate<0,0,90>
		translate <14,0,0>
	}
}			

object{biscoito
	rotate <90,0,0>
	translate<0,0,2>
	texture {tx_1}
}

object{garra(130)
	translate <-10,0,15>
}

object{garra(150)
	translate <0,0,15>
}

object{garra(180)
	translate <10,0,15>
}


#include "camlight.inc"
#declare centro_cena = < 0.00, 0.00, 1.00 >;
#declare raio_cena = 20;
#declare dir_camera = < -1, 2, 4 >;
#declare dist_camera = 100;
#declare intens_luz = 1.00;
camlight(centro_cena, raio_cena, dir_camera, dist_camera , z, intens_luz)