README

#ifdef __APPLE__
#include <OpenGL/gl.h>
#include <OpenGL/glu.h>
#include <GLUT/glut.h>
#else
#include <GL/gl.h>
#include <GL/glu.h>
#include <GL/glut.h>
#endif

#include <stdlib.h>
#include <stdio.h>
 
void drawCube(float size)
{
        glBegin(GL_QUADS);
                // front face
                glColor3f(1.0,0.0,0.0);
                glVertex3f(size/2,size/2,size/2);
                glVertex3f(-size/2,size/2,size/2);
                glVertex3f(-size/2,-size/2,size/2);
                glVertex3f(size/2,-size/2,size/2);
                // left face
                glColor3f(0.0,1.0,0.0);
                glVertex3f(-size/2,size/2,size/2);
                glVertex3f(-size/2,-size/2,size/2);
                glVertex3f(-size/2,-size/2,-size/2);
                glVertex3f(-size/2,size/2,-size/2);
                // back face
                glColor3f(0.0,0.0,1.0);
                glVertex3f(size/2,size/2,-size/2);
                glVertex3f(-size/2,size/2,-size/2);
                glVertex3f(-size/2,-size/2,-size/2);
                glVertex3f(size/2,-size/2,-size/2);
                // right face
                glColor3f(1.0,1.0,0.0);
                glVertex3f(size/2,size/2,size/2);
                glVertex3f(size/2,-size/2,size/2);
                glVertex3f(size/2,-size/2,-size/2);
                glVertex3f(size/2,size/2,-size/2);
                // top face
                glColor3f(1.0,0.0,1.0);
                glVertex3f(size/2,size/2,size/2);
                glVertex3f(-size/2,size/2,size/2);
                glVertex3f(-size/2,size/2,-size/2);
                glVertex3f(size/2,size/2,-size/2);
                // bottom face
                glColor3f(0.0,1.0,1.0);
                glVertex3f(size/2,-size/2,size/2);
                glVertex3f(-size/2,-size/2,size/2);
                glVertex3f(-size/2,-size/2,-size/2);
                glVertex3f(size/2,-size/2,-size/2);
        glEnd();
}
 
float angle = 0.0;
const int triangle = 1;
 
void init()
{
        glClearColor(0.0,0.0,0.0,1.0);  //background color and alpha
        glMatrixMode(GL_PROJECTION);
        glLoadIdentity();
        gluPerspective(45,640.0/480.0,1.0,500.0);
        glMatrixMode(GL_MODELVIEW);
        glEnable(GL_DEPTH_TEST);
}
 
void display()
{
        glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
        glLoadIdentity();
        glTranslatef(0.0,0.0,-5.0);
        glRotatef(angle,1.0,1.0,1.0);   // angle, x-axis, y-axis, z-axis
        drawCube(1.0);
}
 
int main(int argc, char** argv)
{
        glutInit(&argc, argv);
    
    /* setup the size, position, and display mode for new windows */
   glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH);
   glutInitWindowSize(1000, 1000);
   glutInitWindowPosition(100, 100);
    
    /* create and set up a window */
   glutCreateWindow("sample");
   init();
   glutDisplayFunc(display);
   //glutReshapeFunc(reshape);
   //glutKeyboardFunc(keyboard);
   glutMainLoop();
   return 0; 
        return 0;
}