t">GL_TEXTURE_3D</code>).
            <em class="parameter"><code>lod</code></em> specifies the level-of-detail number of the desired image.
        </p><p>
            If a non-zero named buffer object is bound to the <code class="constant">GL_PIXEL_PACK_BUFFER</code> target
            (see <a class="citerefentry" href="glBindBuffer"><span class="citerefentry"><span class="refentrytitle">glBindBuffer</span></span></a>) while a texture image is
            requested, <em class="parameter"><code>img</code><