te"><span class="citerefentry"><span class="refentrytitle">glStencilFuncSeparate</span></span></a>.
        </p><p>
            There can be two separate sets of <em class="parameter"><code>sfail</code></em>, <em class="parameter"><code>dpfail</code></em>, and
            <em class="parameter"><code>dppass</code></em> parameters; one affects back-facing polygons, and the other
            affects front-facing polygons as well as other non-polygon primitives.
            <a class="citerefentry" href="glStenc