boring old cube GL

boring_old_cube.cpp

#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <OpenGL/gl.h>
#include <GLUT/glut.h>

int windowWidth;
float rot = 0.0f;

static void display( void )
{
    glClear(GL_COLOR_BUFFER_BIT);
    glPushMatrix();
    glRotatef(rot, 1, 1, 1);
    glBegin(GL_POLYGON);
    glVertex3f(0.0, 0.0, 0.0);
    glVertex3f(0.5, 0.0, 0.0);
    glVertex3f(0.5, 0.5, 0.0);
    glVertex3f(0.0, 0.5, 0.0);
    glEnd();

    glPopMatrix();
    glutSwapBuffers();
    printf("WAT %1.1f\n", rot);
}

static void idle(void) {
    rot += 0.1;
    display();
}

int main(int argc, char** argv)
{
    glutInit (&argc,argv);
    // glutInitDisplayMode (GLUT_SINGLE); 
    glutInitDisplayMode (GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE); 
    glutInitWindowSize (300,300);
    glutInitWindowPosition (0,0); 
    glutCreateWindow ("BORING OLD CUBE");
    glutDisplayFunc (display); 
    glutIdleFunc(idle);
    glutMainLoop();
    return 0;
}

Makefile

cube:
	gcc boring_old_cube.cpp -framework OpenGL -framework GLUT -o boring_old_cube -w