1 void main(int argc, char* argv[])
    {
       /* initialize the application data here */
       OnApplicationInit();
  5 
       /* create a window to render graphics in
        * In VR Juggler, window creation is done for you based on your configuration file
        * settings.
        */
 10    glutInitWindowSize( 640, 480 );
       glutInit( &argc, argv );
       glutInitDisplayMode( GLUT_RGBA | GLUT_DEPTH | GLUT_DOUBLE );
       glutCreateWindow( "GLUT application" );
    
 15    /* display callbacks.
        * NOTE: the first time OnIdle is called is when you should 
        *       initialize the display context for each window
        *       (doing this is analogous to VR Juggler's 
        *       vrj::GlApp::contextInit() function)
 20     */
       glutReshapeFunc( OnReshape );
       glutIdleFunc( OnIdle );
       glutDisplayFunc( OnIdle );
    
 25    /* tell glut to not call the keyboard callback repeatedly 
        * when holding down a key. (uses edge triggering, like the mouse does)
        */
       glutIgnoreKeyRepeat( 1 );
    
 30    /* keyboard callback functions. */
       glutKeyboardFunc( OnKeyboardDown );
       glutKeyboardUpFunc( OnKeyboardUp );
       glutSpecialFunc( OnSpecialKeyboardDown );
       glutSpecialUpFunc( OnSpecialKeyboardUp );
 35 
       /* mouse callback functions... */
       glutMouseFunc( OnMouseClick );
       glutMotionFunc( OnMousePos );
       glutPassiveMotionFunc( OnMousePos );
 40 
       /* start the application loop, your callbacks will now be called
        * time for glut to sit and spin.  In Juggler this is the same as the while(1)
        * (see below)
        */
 45    glutMainLoop();
    }

  1 class MyApplication : public vrj::GlApp
    {
    public:
    // Data callbacks  (Do not put OpenGL code here)
  5    virtual void init();
       virtual void preFrame();
       virtual void intraFrame();
       virtual void postFrame();
          
 10 // OpenGL callbacks (put only OpenGL code here)
       virtual void contextInit();
       virtual void draw();
    };
    
 15 int main(int argc, char* argv[]) 
    {
       // configure kernel with *.config files
       vrj::Kernel* kernel = vrj::Kernel::instance(); // Get the kernel
       for(int i=1; i<argc; i++)
 20    {
          // loading config file passed on command line...
          kernel->loadConfigFile(argv[i]);
       }
    
 25    // start the kernel
       kernel->start();
    
       // set the application for the kernel to run
       MyApplication* application = new MyApplication();
 30    kernel->setApplication(application);
    
       // Block until the kernel exits.
       kernel->waitForKernelStop();
    
 35    return 0;
    }