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<refentry xmlns="http://docbook.org/ns/docbook" version="5.0" xml:id="glEnableVertexAttribArray">
    <info>
        <copyright>
            <year>2003-2005</year>
            <holder>3Dlabs Inc. Ltd.</holder>
        </copyright>
        <copyright>
            <year>2010-2015</year>
            <holder>Khronos Group</holder>
        </copyright>
    </info>
    <refmeta>
        <refentrytitle>glEnableVertexAttribArray</refentrytitle>
        <manvolnum>3G</manvolnum>
    </refmeta>
    <refnamediv>
        <refdescriptor>glEnableVertexAttribArray</refdescriptor>
        <refname>glEnableVertexAttribArray</refname>
        <refname>glDisableVertexAttribArray</refname>
        <refpurpose>Enable or disable a generic vertex attribute array</refpurpose>
    </refnamediv>
    <refsynopsisdiv>
        <title>C Specification</title>
    <funcsynopsis>
        <funcprototype>
        <funcdef>void <function>glEnableVertexAttribArray</function></funcdef>
        <paramdef>GLuint <parameter>index</parameter></paramdef>
        </funcprototype>
        <funcprototype>
        <funcdef>void <function>glDisableVertexAttribArray</function></funcdef>
        <paramdef>GLuint <parameter>index</parameter></paramdef>
        </funcprototype>
    </funcsynopsis>
    </refsynopsisdiv>
    <refsect1 xml:id="parameters"><title>Parameters</title>
    <variablelist>
        <varlistentry>
        <term><parameter>index</parameter></term>
        <listitem>
            <para>Specifies the index of the generic vertex
            attribute to be enabled or disabled.</para>
        </listitem>
        </varlistentry>
    </variablelist>
    </refsect1>
    <refsect1 xml:id="description"><title>Description</title>
    <para><function>glEnableVertexAttribArray</function> enables the
    generic vertex attribute array specified by
    <parameter>index</parameter>.
    <function>glDisableVertexAttribArray</function> disables the
    generic vertex attribute array specified by
    <parameter>index</parameter>. By default, all generic vertex
    attribute arrays are disabled. If enabled, the values in the generic vertex
    attribute array will be accessed and used for rendering when
    calls are made to vertex array commands such as
    <citerefentry><refentrytitle>glDrawArrays</refentrytitle></citerefentry>,
    <citerefentry><refentrytitle>glDrawArraysInstanced</refentrytitle></citerefentry>,
    <citerefentry><refentrytitle>glDrawElements</refentrytitle></citerefentry>,
    <citerefentry><refentrytitle>glDrawElementsInstanced</refentrytitle></citerefentry>,
        or
    <citerefentry><refentrytitle>glDrawRangeElements</refentrytitle></citerefentry>.</para>
    </refsect1>
    <refsect1 xml:id="errors"><title>Errors</title>
    <para><constant>GL_INVALID_VALUE</constant> is generated if
    <parameter>index</parameter> is greater than or equal to
    <constant>GL_MAX_VERTEX_ATTRIBS</constant>.</para>

    </refsect1>
    <refsect1 xml:id="associatedgets"><title>Associated Gets</title>
    <para><citerefentry><refentrytitle>glGet</refentrytitle></citerefentry>
    with argument <constant>GL_MAX_VERTEX_ATTRIBS</constant></para>

    <para><citerefentry><refentrytitle>glGetVertexAttrib</refentrytitle></citerefentry>
    with arguments <parameter>index</parameter> and
    <constant>GL_VERTEX_ATTRIB_ARRAY_ENABLED</constant>
    <parameter/></para>

    <para>
        <citerefentry><refentrytitle>glGetVertexAttribPointerv</refentrytitle></citerefentry>
        with arguments <parameter>index</parameter> and
        <constant>GL_VERTEX_ATTRIB_ARRAY_POINTER</constant>
    </para>
    </refsect1>
    <refsect1 xml:id="versions">
        <title>API Version Support</title>
        <informaltable>
            <tgroup cols="5" align="left">
                <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="apifunchead.xml" xpointer="xpointer(/*/*)"/>
                <tbody>
                    <row>
                        <entry><function>glEnableVertexAttribArray</function></entry>
                        <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="apiversion.xml" xpointer="xpointer(/*/*[@role='es20']/*)"/>
                    </row>
                    <row>
                        <entry><function>glDisableVertexAttribArray</function></entry>
                        <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="apiversion.xml" xpointer="xpointer(/*/*[@role='es20']/*)"/>
                    </row>
                </tbody>
            </tgroup>
        </informaltable>
    </refsect1>
    <refsect1 xml:id="seealso"><title>See Also</title>
    <para>
    <citerefentry><refentrytitle>glBindAttribLocation</refentrytitle></citerefentry>,
    <citerefentry><refentrytitle>glDrawArrays</refentrytitle></citerefentry>,
    <citerefentry><refentrytitle>glDrawArraysInstanced</refentrytitle></citerefentry>,
    <citerefentry><refentrytitle>glDrawElements</refentrytitle></citerefentry>,
    <citerefentry><refentrytitle>glDrawElementsInstanced</refentrytitle></citerefentry>,
    <citerefentry><refentrytitle>glDrawRangeElements</refentrytitle></citerefentry>,
    <citerefentry><refentrytitle>glVertexAttrib</refentrytitle></citerefentry>,
    <citerefentry><refentrytitle>glVertexAttribPointer</refentrytitle></citerefentry>
    </para>
    </refsect1>
    <refsect1 xml:id="Copyright"><title>Copyright</title>
        <para>
            Copyright <trademark class="copyright"/> 2003-2005 3Dlabs Inc. Ltd.
            Copyright <trademark class="copyright"/> 2010-2015 Khronos Group.
            This material may be distributed subject to the terms and conditions set forth in
            the Open Publication License, v 1.0, 8 June 1999.
            <link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://opencontent.org/openpub/">http://opencontent.org/openpub/</link>.
        </para>
    </refsect1>
</refentry>
