// Exercício número 4 - Aula de 01/06/2001
// Anderson Supriano - RA 7852



background{ color rgb < 0.5, 0.5, 0.5 > }

#declare verde = 
  texture {
    pigment { color rgb < 0.00, 1.00, 0.00 > }
    finish { diffuse 0.5 specular 0.5 roughness 0.005 ambient 0.1 }
}

#declare vermelho = 
  texture {
    pigment { color rgb < 1.00, 0.00, 0.00 > }
    finish { diffuse 0.5 specular 0.5 roughness 0.005 ambient 0.1 }
}

#declare azul = 
  texture {
    pigment { color rgb < 0.00, 0.00, 1.00 > }
    finish { diffuse 0.5 specular 0.5 roughness 0.005 ambient 0.1 }
}

#declare chao = 
	texture {
		pigment{ color rgb < 0.5, 0.5, 0.8 > }
    		finish { diffuse 0.5 specular 0.5 roughness 0.005 ambient 0.5 }
		normal {granite}
}

#declare transparente = 
	texture {
		finish { ambient 0.1 diffuse 0.1 reflection 0.25 specular 1 roughness 0.001}
		pigment { color rgb <1.0, 0.7, 0.7> filter 1 }
}

#declare cor_espelho =  <1, 1, 0>;

#declare espelhado = 
	texture {
		pigment { color rgb cor_espelho }
		finish { ambient 0.05 diffuse 0.05 reflection cor_espelho 
			     specular 0.20 roughness 0.05 }
}

camera {
  location  <  3, 6, 6 >
  right <-0.60, 0.00, 0.00>
  up <0.00, 0.00, 0.80>
  sky <0.00, 0.00, 1.00>
  look_at   <  0, 0, 2 >
} 

light_source {
  < 0, 7, 7 >
  color rgb < 1.50, 1.50, 1.50 >
}

#declare base = cone { <0, 0, 0>, 1,
                       <0, 0, 1>, 0.4 texture {transparente} hollow interior{ior 1.5} }

#declare corpo_curvo = difference {
	sphere { <0, 0, 2>, 1 }
        box { <-1, -1, 2>, <1, 1, 3> }
        texture {espelhado} }

#declare bolacha = torus {
	0.8, 0.2 
        rotate 90*x
        texture {espelhado} }

#declare corpo = difference { 
	cylinder { < 0, 0, 2>,
        	   < 0, 0, 4>, 1 }
	cylinder { < 0, 0, 2>,
		   < 0, 0, 5>, 0.8 } texture {espelhado} }


union {
	plane { <0,0,1>, 0 texture {chao} }
	object {base}
        object {corpo_curvo}
	object {corpo}
        object {bolacha translate <0, 0, 4>}
}