class="constant">GL_READ_FRAMEBUFFER</code>, or <code class="constant">GL_FRAMEBUFFER</code>. <code class="constant">GL_FRAMEBUFFER</code>
                    is equivalent to <code class="constant">GL_DRAW_FRAMEBUFFER</code>.
                </p></dd><dt><span class="term"><em class="parameter"><code>attachment</code></em></span></dt><dd><p>
                    Specifies the attachment point of the framebuffer. <em class="parameter"><code>attachment</code></em> must be
                    <code class="cons