//1kod walca do kodu ramienia
    double x, y, PI = 3.14, alfa;

    glBegin(GL_TRIANGLE_FAN);
    glColor3d(200.0, 0.0, 0.0);
    glVertex3d(0, 0, 0);
    for (alfa = PI; alfa <= 2 * PI; alfa += PI / 8) {
        x = r1*sin(alfa);
        y = r1*cos(alfa);
        glVertex3d(x, y, 0);
    }
    glEnd();

    glBegin(GL_QUAD_STRIP);
    glColor3d(0.0, 0.0, 100.0);
    for (alfa = PI; alfa <= 2 * PI; alfa += PI / 8.0) {
        x = r1*sin(alfa);
        y = r1*cos(alfa);
        glVertex3d(x, y, 0);
        glVertex3d(x, y, h);
    }
    glEnd();

    glBegin(GL_TRIANGLE_FAN);
    glColor3d(0.0, 100.0, 0.0);
    glVertex3d(0, 0, h);
    for (alfa = 0.0; alfa >= -PI; alfa -= PI / 8) {
        x = r1*sin(alfa);
        y = r1*cos(alfa);
        glVertex3d(x, y, h);
    }
    glEnd();

    //Kopiuje polowke walca jeszcze raz
    //3. Druga połówka
    glBegin(GL_TRIANGLE_FAN);
    glColor3d(200.0, 0.0, 0.0);
    glVertex3d(d, 0, 0);
    for (alfa = 0; alfa <= PI; alfa += PI / 8) {
        x = r2*sin(alfa) + d;
        y = r2*cos(alfa);
        glVertex3d(x, y, 0);
    }
    glEnd();

    glBegin(GL_QUAD_STRIP);
    glColor3d(0.0, 0.0, 100.0);
    for (alfa = 0; alfa <= PI; alfa += PI / 8.0) {
        x = r2*sin(alfa) +d;
        y = r2*cos(alfa);
        glVertex3d(x, y, 0);
        glVertex3d(x, y, h);
    }
    glEnd();

    glBegin(GL_TRIANGLE_FAN);
    glColor3d(0.0, 100.0, 0.0);
    glVertex3d(d, 0, h);
    for (alfa = -PI; alfa >= -2*PI; alfa -= PI / 8) {
        x = r2*sin(alfa)+d;
        y = r2*cos(alfa);
        glVertex3d(x, y, h);
    }
    glEnd();