// http://www.codebind.com/linux-tutorials/install-opengl-ubuntu-linux/
#ifdef __APPLE__
    #include <OpenGL/gl.h>
    #include <OpenGL/gl3.h>
    #include <GLUT/glut.h>
#else
    #include <GL/glew.h>
    #include <GL/glut.h>
#endif

void displayMe(void)
{
    glClear(GL_COLOR_BUFFER_BIT);
    glBegin(GL_POLYGON);
        glVertex3f(0.5, 0.0, 0.5);
        glVertex3f(0.5, 0.0, 0.0);
        glVertex3f(0.0, 0.5, 0.0);
        glVertex3f(0.0, 0.0, 0.5);
    glEnd();
    glFlush();
}
 
int main(int argc, char** argv)
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_SINGLE);
    glutInitWindowSize(1920, 1080);
    glutInitWindowPosition(0, 0);
    glutCreateWindow("Hello world!");
    glutFullScreen();
    glutDisplayFunc(displayMe);
    glutMainLoop();
    return 0;
}