"refsect1" lang="en" xml:lang="en"><a id="description"></a><h2>Description</h2><p>
            <code class="function">gluDisk</code> renders a disk on the <span class="emphasis"><em>z</em></span> = 0 plane. The disk has a radius of
            <em class="parameter"><code>outer</code></em> and contains a concentric circular hole with a radius
            of <em class="parameter"><code>inner</code></em>. If <em class="parameter"><code>inner</code></em> is 0, then no hole is generated. The disk is
            