QGLWidget: set normals

[Jonny174]

Hi All!
I use this code:

...
GLUquadric *quadObj = gluNewQuadric();
gluQuadricTexture( quadObj, GL_TRUE );
gluQuadricDrawStyle( quadObj, GLU_FILL );
gluQuadricNormals( quadObj, GLU_SMOOTH );
 
glPushMatrix();
  glBindTexture( GL_TEXTURE_2D, text[1] );
  glEnable( GL_TEXTURE_2D );
    gluDisk( quadObj, 0, radius, quad, quad );
  glDisable( GL_TEXTURE_2D );
glPopMatrix();

...
GLUquadric *quadObj = gluNewQuadric();
gluQuadricTexture( quadObj, GL_TRUE );
gluQuadricDrawStyle( quadObj, GLU_FILL );
gluQuadricNormals( quadObj, GLU_SMOOTH );

glPushMatrix();
  glBindTexture( GL_TEXTURE_2D, text[1] );
  glEnable( GL_TEXTURE_2D );
    gluDisk( quadObj, 0, radius, quad, quad );
  glDisable( GL_TEXTURE_2D );
glPopMatrix();

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When I set option glEnable( GL_CULL_FACE ) draw this:
1.jpg
Back side:
3.jpg
Texture drawing inside.
I need to draw outside:
2.jpg
How can I do this?
Thanks!!!