#include <windows.h>   
#include <gl/gl.h>     
#include <gl/glut.h>   

float    angle;                        

void display ()  
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);    
glLoadIdentity();                                                       
glTranslatef(0.0f,0.0f,-26.0f);                
glRotatef(angle,0.0f,0.0f,0.0f);            
float x,y;
for (x =-15.0f;x<15.0f;x+=3.0f)
{
for (y =-15.0f;y<15.0f;y+=3.0f)
{
glPushMatrix();
glTranslatef (x, y , 0);
glBegin (GL_QUADS);
glColor3f (1, 0, 0); glVertex2f ( 1, 1);
glColor3f (0, 1, 0); glVertex2f (-1, 1);
glColor3f (0, 0, 1); glVertex2f (-1,-1);
glColor3f (1, 1, 1); glVertex2f ( 1,-1);
glEnd ();
glPopMatrix ();

}
}

angle+=0.15f;
glutSwapBuffers( );

}

void reshape ( int w, int h )   
{
glViewport     ( 0, 0, w, h );
glMatrixMode   ( GL_PROJECTION ); 
glLoadIdentity ( );             
gluPerspective ( 80, ( float ) w / ( float ) h, 1.0, 1000.0 );
glMatrixMode   ( GL_MODELVIEW );  
glLoadIdentity ( );   
}

void keyboard ( unsigned char key, int x, int y )  
{
if (key == 27) exit(0);

}

int main ( int argc, char** argv )  
{
glutInit( &argc, argv ); 

glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE ); 
glutInitWindowSize (500, 500 );
glutCreateWindow ( "planes" ); 
glutFullScreen();          
glutDisplayFunc( display );  
glutReshapeFunc( reshape );
glutKeyboardFunc( keyboard );
glutIdleFunc( display );
glutMainLoop();       
}