// Last edited on 2019-07-17 01:27:30 by stolfilocal
// Processed by remove-cam-lights

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

#declare tx_plastico_branco =
  texture{
    pigment{ color rgb < 1.0, 1.0, 1.0 > }
    finish{ diffuse 0.8 ambient 0.1 specular 0.5 roughness 0.005 }
  }

#declare tx_plastico_preto =
  texture{
    pigment{ color rgb < 0.0, 0.0, 0.0 > }
    finish{ diffuse 0.8 ambient 0.1 specular 0.5 roughness 0.005 }
  }

#declare tx_plastico_vermelho =
  texture{
    pigment{ color rgb < 0.90, 0.20, 0.10 > }
    finish{ diffuse 0.8 ambient 0.1 specular 0.5 roughness 0.005 }
  }

#declare tx_plastico_azul =
  texture{
    pigment{ color rgb < 0.1, 0.2, 0.9 > }
    finish{ diffuse 0.8 ambient 0.1 specular 0.5 roughness 0.005 }
  }

#macro bola (raio, centro, textura)
  sphere{
    centro,
                raio
    texture{ textura }
  }
#end

#declare bola_unit =
  sphere{
    <0, 0, 0>,
                0.1
    texture{ tx_plastico_vermelho }
  }

#declare x0 = -5; // posição final
#declare x1 = 5;  // posição inicial

#macro circulo (raioS, raioC, start, stop, passo)
                union{
                        #for (i, start, stop, passo)
                                        #declare centro = raioC * <0, cos(2 * pi * i), sin(2 * pi * i)>;

                                        object{ bola(raioS, centro, tx_plastico_vermelho) }
                        #end // end while
                }
#end

#macro palito (raio, p0, p1, passo)
                union{
                        #for (i, -1, 1, passo)
                                        #declare centro = p0 + i * p1;

                                        object{ bola(raio, centro, tx_plastico_vermelho) }
                        #end // end while
                }
#end

#macro interplin (p0, t0, p1, t1, tt)
        #local r = (tt - t0) / (t1 - t0);
        #local s = 1 - r;
        #local vv = s * p0 + r * p1;
        vv
#end // end interplin

#macro bezier (t0, t1, A, B, C, D, tt)
        #local AB = interplin(A, t0, B, t1, tt);
        #local BC = interplin(B, t0, C, t1, tt);
        #local CD = interplin(C, t0, D, t1, tt);

        #local ABC = interplin(AB, t0, BC, t1, tt);
        #local BCD = interplin(BC, t0, CD, t1, tt);

        #local ABCD = interplin(ABC, t0, BCD, t1, tt);

        ABCD

#end // end interplin

#macro quadrado (passo)
                union{
                        #for (i, 0, 1, passo)
                                object{ bola_unit translate interplin(<0, 0, 0>, 0, <0, 0, 1>, 1, i)}
                                object{ bola_unit translate interplin(<0, 0, 0>, 0, <0, 1, 0>, 1, i)}
                                object{ bola_unit translate interplin(<0, 1, 0>, 0, <0, 1, 1>, 1, i)}
                                object{ bola_unit translate interplin(<0, 1, 1>, 0, <0, 0, 1>, 1, i)}
                        #end // end while
                }
#end

#macro cubo (passo)
        union{
                object{ quadrado(passo) }
                object{ quadrado(passo) translate <0, -1, 0> rotate <0, 0, 90> }
                object{ quadrado(passo) translate <1, -1, 0> rotate <0, 0, 90> }
                object{ quadrado(passo) translate <1, 0, 0> }
        }
#end

#include "eixos.inc"

        // object{ eixos(1.0) }

        #for (i, 0, 1, 0.01)
                object{ bola_unit translate bezier(0, 1, <0.5, 0.5, 0>, <0, -1, 1.5>, <1.5, -1, 0>, <0, 0, 0>, i) }
                object{ bola_unit translate bezier(0, 1, <0, 0, 0>, <0, 1.0, 1.0>, <1.0, 1.0, 1.0>, <0.3, -0.7, 0.2>, i) }
                object{ bola_unit translate bezier(0, 1, <0.5, 0.5, 0>, <0.25, 0.2, -0.8>, <0, 0.6, -0.8>, <0.3, -0.7, 0.2>, i) }
        #end

#include "camlight.inc"
#declare centro_cena = < 0.3, 0.0, 0.3>;
#declare raio_cena = 1.5;
#declare dir_camera = < -30, -30, 30 >;
#declare dist_camera = 5*raio_cena;
#declare intens_luz = 1.20;
camlight(centro_cena, raio_cena, dir_camera, dist_camera , z, intens_luz)