of these values:
        </p><div class="variablelist"><dl><dt><span class="term">
                    <code class="constant">GL_MODELVIEW</code>
                </span></dt><dd><p>Applies subsequent matrix operations to the
                    modelview matrix stack.</p></dd><dt><span class="term">
                    <code class="constant">GL_PROJECTION</code>
                </span></dt><dd><p>Applies subsequent matrix operations to the
                    projection matrix stack.</p></dd><dt><span class