int main (int argc, char **argv) {
/* GLUT - Initialization */
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_RGBA | GLUT_DOUBLE | GLUT_DEPTH);
glutInitWindowSize(500, 500);
glutCreateWindow("CG2001-T1");
/*
Registrando callbacks */
glutDisplayFunc(display);
//
glutMouseFunc(mouseCall);
//
glutMotionFunc(motionCall);
//
glutKeyboardFunc(keyboardCall);
glutIdleFunc(display);
/* GLUT main loop */
glutMainLoop();
return
0;
}