rm"><code class="constant">GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL</code></span></dt><dd><p>
                        If the value of <code class="constant">GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE</code>
                        is <code class="constant">GL_TEXTURE</code>,
                        <em class="parameter"><code>params</code></em> returns the mipmap level of
                        the texture object which contains the attached image.
                        The initial value is zero.
              