glScalef(scaling, scaling, scaling);

glRotatef(rotationX, 1.0, 0.0, 0.0);
glRotatef(rotationY, 0.0, 1.0, 0.0);
glRotatef(rotationZ, 0.0, 0.0, 1.0);

glBegin(GL_QUADS);
qglColor(QColor::fromRgb(200, 200, 0));
glVertex3f(1.0, 1.0, 0);
glVertex3f(-1.0, 1.0, 0);
glVertex3f(-1.0, -1.0, 0);
glVertex3f(1.0, -1.0, 0);
glEnd();