              If an array corresponding to a generic attribute required by a vertex shader
                        is not enabled, then the corresponding element is taken from the current generic
                        attribute state.
        </p>
      </div>
      <div class="refsect1" id="errors">
        <h2>Errors</h2>
        <p>
            <code class="constant">GL_INVALID_ENUM</code> is generated if <em class="parameter"><code>mode</code></em> is not one of <code class="constant">GL_POINTS</code>