push and pop matrix in stack (openGL) - opengl

Question

I have knew that there is some problem in this code as if I run it nothing is drawn .
portion of program where wrong is located in this code
void display(void)
{
glClear (GL_COLOR_BUFFER_BIT);
glColor3f (1.0, 1.0, 1.0);
glLoadIdentity ();
glPushMatrix();
glRotated((GLdouble) Vangle,1.0,0.0,0.0);
gluLookAt (0.0, 0.0, 5.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
glPopMatrix();
glutWireCube (1.0);
glFlush ();
}
can you tell what is wrong ?
I think in matrix stack methods (push and pop) , I do not know how do I use it
Note : value of Vangle is zero .

Answer 1

As pst pointed out: Move the glutWireCube() call inside the glPush/PopMatrix() pair.
Give this a shot:
#include <GL/glut.h>
void display()
{
glEnable( GL_DEPTH_TEST );
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
// projection
glMatrixMode( GL_PROJECTION );
glLoadIdentity();
double w = glutGet( GLUT_WINDOW_WIDTH );
double h = glutGet( GLUT_WINDOW_HEIGHT );
double ar = w / h;
gluPerspective( 60, ar, 0.1, 100 );
// "camera" transform
glMatrixMode( GL_MODELVIEW );
glLoadIdentity();
gluLookAt (0.0, 0.0, 5.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
// draw cube
glPushMatrix();
float Vangle = 0.0f;
glRotated((GLdouble) Vangle,1.0,0.0,0.0);
glutWireCube (1.0);
glPopMatrix();
glutSwapBuffers();
}
int main( int argc, char **argv )
{
glutInit( &argc, argv );
glutInitDisplayMode( GLUT_RGBA | GLUT_DEPTH | GLUT_DOUBLE );
glutInitWindowSize( 640, 480 );
glutCreateWindow( "GLUT" );
glutDisplayFunc( display );
glutMainLoop();
return 0;
}