rs.
        </p>
      </div>
      <div class="refsect1" id="notes">
        <h2>Notes</h2>
        <p>
            When more than one RGBA color buffer is enabled for drawing,
            logical operations are performed separately for each enabled buffer,
            using for the destination value the contents of that buffer
            (see <a class="citerefentry" href="glDrawBuffer"><span class="citerefentry"><span class="refentrytitle">glDrawBuffer</span></span></a>).
        </p>
        <p>
       