/* -*-ePiX-*- */
#include "epix.h"
using namespace ePiX;

const double MAX(1);

P F(double u, double v)
{
  return sph(1, u, v);
}

int main()
{
  picture(P(0,0),P(5,1), "5 x 1in");

  begin();

  pst_format();
  domain coarse(P(0,0), P(0.5, 1), mesh(6,12), mesh(60,60));
  domain fine(P(0,0), P(0.5, 1), mesh(15,30), mesh(60,60));

  revolutions();
  camera.at(P(5, 4, 3));

  fill(White());

  nofill(); // fill color set -> flat shading
  screen scr1(P(-1,-1), P(1,1));
  activate(scr1);
  surface(F, coarse);

  screen scr2(P(-1,-1), P(1,1));
  activate(scr2);
  surface(F, fine);

  fill();
  screen scr3(P(-1,-1), P(1,1));
  activate(scr3);
  surface(F, coarse);

  screen scr4(P(-1,-1), P(1,1));
  activate(scr4);
  surface(F, fine);

  inset(scr1, P(0,0), P(1,1));
  inset(scr2, P(1.25,0), P(2.25,1));
  inset(scr3, P(2.5,0), P(3.5,1));
  inset(scr4, P(3.75,0), P(4.75,1));

  end();
}