<code>params</code></em> returns the cube map
                        face of the cube-map texture object which contains
                        the attached image. If the attached image is from a
                        texture object but not a cube-map, <em class="parameter"><code>params</code></em>
                        returns 0.
                        The initial value is <code class="constant">GL_TEXTURE_CUBE_MAP_POSITIVE_X</code>.
                    </p></dd></dl></div></div><div class="refsect1"