subdivided around the <span class="emphasis"><em>z</em></span> axis into slices (like pizza slices) and also
            about the <span class="emphasis"><em>z</em></span> axis into rings
            (as specified by <em class="parameter"><code>slices</code></em> and <em class="parameter"><code>loops</code></em>, respectively).
        </p><p>
            With respect to orientation, the +<span class="emphasis"><em>z</em></span> side of the disk is considered to be
            ``outside'' (see <a class="cit