int main(int argc, char** argv)
{
  glutInit(&argc,argv);
  glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB);
  glutInitWindowSize(300,300);
  glutInitWindowPosition(100,100);
  glutCreateWindow(argv[0]);
  ohinit();
  glutDisplayFunc(display);
  glutReshapeFunc(reshape);
  glutKeyboardFunc(keyboard);
  glutIdleFunc(idle);
  glutMainLoop();
  return 0;
}