stozek bez podzialow

void RysujStozek(GLfloat r, GLfloat h) {


    glBegin(GL_TRIANGLE_FAN);
//dolna podstawa
    glVertex3f(0, 0, 0);
    for (int b = 0; b * dAlfa <= 360.0; b++)
    {
        glVertex3f(r * cos(DEG2RAD(b * dAlfa)), 0.0, r * sin(DEG2RAD(b * dAlfa)));
    }
    glEnd();

        float i = 0;
        glBegin(GL_QUADS);
        glVertex3f(r * cos(DEG2RAD(i * dAlfa)), 0, r * sin(DEG2RAD(i * dAlfa)));
        glVertex3f(0, h, 0);
        for (i = 1; i * dAlfa < 360; i++)
        {
            glVertex3f(0, h, 0);
            glVertex3f(r * cos(DEG2RAD(i * dAlfa)), 0, r * sin(DEG2RAD(i * dAlfa)));
            //kolejna sciana
            glVertex3f(r * cos(DEG2RAD(i * dAlfa)), 0, r * sin(DEG2RAD(i * dAlfa)));
            glVertex3f(0, h , 0);
        }
        glVertex3f(0, h, 0);
        glVertex3f(r * cos(DEG2RAD(360)), 0, r * sin(DEG2RAD(360)));
        glEnd();

}