<!DOCTYPE refentry [ <!ENTITY % mathent SYSTEM "math.ent"> %mathent; ]>

<refentry xmlns="http://docbook.org/ns/docbook" version="5.0" xml:id="glVertexAttribBinding">
    <info>
        <copyright>
            <year>2013-2014</year>
            <holder>Khronos Group</holder>
        </copyright>
    </info>
    <refmeta>
        <refentrytitle>glVertexAttribBinding</refentrytitle>
        <manvolnum>3G</manvolnum>
    </refmeta>
    <refnamediv>
        <refname>glVertexAttribBinding</refname>
        <refpurpose>associate a vertex attribute and a vertex buffer binding for a vertex array object</refpurpose>
    </refnamediv>
    <refsynopsisdiv><title>C Specification</title>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glVertexAttribBinding</function></funcdef>
                <paramdef>GLuint <parameter>attribindex</parameter></paramdef>
                <paramdef>GLuint <parameter>bindingindex</parameter></paramdef>
            </funcprototype>
            <funcprototype>
                <funcdef>void <function>glVertexArrayAttribBinding</function></funcdef>
                <paramdef>GLuint <parameter>vaobj</parameter></paramdef>
                <paramdef>GLuint <parameter>attribindex</parameter></paramdef>
                <paramdef>GLuint <parameter>bindingindex</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
    </refsynopsisdiv>
    <refsect1 xml:id="parameters"><title>Parameters</title>
        <variablelist>
        <varlistentry>
            <term><parameter>vaobj</parameter></term>
            <listitem>
                <para>
                    Specifies the name of the vertex array object for
                    <function>glVertexArrayAttribBinding</function>.
                </para>
            </listitem>
        </varlistentry>
        <varlistentry>
            <term><parameter>attribindex</parameter></term>
            <listitem>
                <para>
                    The index of the attribute to associate with a vertex
                    buffer binding.
                </para>
            </listitem>
        </varlistentry>
        <varlistentry>
            <term><parameter>bindingindex</parameter></term>
            <listitem>
                <para>
                    The index of the vertex buffer binding with which to
                    associate the generic vertex attribute.
                </para>
            </listitem>
        </varlistentry>
        </variablelist>
    </refsect1>
    <refsect1 xml:id="description"><title>Description</title>
        <para>
            <function>glVertexAttribBinding</function> and
            <function>glVertexArrayAttribBinding</function> establishes an
            association between the generic vertex attribute of a vertex
            array object whose index is given by
            <parameter>attribindex</parameter>, and a vertex buffer binding
            whose index is given by <parameter>bindingindex</parameter>. For
            <function>glVertexAttribBinding</function>, the vertex array
            object affected is that currently bound. For
            <function>glVertexArrayAttribBinding</function>,
            <parameter>vaobj</parameter> is the name of the vertex array
            object.
        </para>
        <para>
            <parameter>attribindex</parameter> must be less than the value
            of <constant>GL_MAX_VERTEX_ATTRIBS</constant> and
            <parameter>bindingindex</parameter> must be less than the value
            of <constant>GL_MAX_VERTEX_ATTRIB_BINDINGS</constant>.
        </para>
    </refsect1>
    <refsect1 xml:id="errors"><title>Errors</title>
        <para>
            <constant>GL_INVALID_OPERATION</constant> is generated by
            <function>glVertexAttribBinding</function> if no vertex array
            object is bound.
        </para>
        <para>
            <constant>GL_INVALID_OPERATION</constant> is generated by
            <function>glVertexArrayAttribBinding</function> if
            <parameter>vaobj</parameter> is not the name of an existing
            vertex array object.
        </para>
        <para>
            <constant>GL_INVALID_VALUE</constant> is generated if <parameter>attribindex</parameter> is greater than
            or equal to the value of <constant>GL_MAX_VERTEX_ATTRIBS</constant>.
        </para>
        <para>
            <constant>GL_INVALID_VALUE</constant> is generated if <parameter>bindingindex</parameter> is greater than
            or equal to the value of <constant>GL_MAX_VERTEX_ATTRIB_BINDINGS</constant>.
        </para>
    </refsect1>
    <refsect1 xml:id="associatedgets"><title>Associated Gets</title>
        <para>
            <citerefentry><refentrytitle>glGet</refentrytitle></citerefentry>
            with arguments
            <constant>GL_MAX_VERTEX_ATTRIB_BINDINGS</constant>,
            <constant>GL_VERTEX_BINDING_DIVISOR</constant>.
        </para>
    </refsect1>
    <refsect1 xml:id="versions"><title>Version Support</title>
        <informaltable>
            <tgroup cols="13" align="left">
                <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="apifunchead.xml" xpointer="xpointer(/*/*)"/>
                <tbody>
                    <row>
                        <entry><function>glVertexArrayAttribBinding</function></entry>
                        <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="apiversion.xml" xpointer="xpointer(/*/*[@role='45']/*)"/>
                    </row>
                    <row>
                        <entry><function>glVertexAttribBinding</function></entry>
                        <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="apiversion.xml" xpointer="xpointer(/*/*[@role='43']/*)"/>
                    </row>
                </tbody>
            </tgroup>
        </informaltable>
    </refsect1>
    <refsect1 xml:id="seealso"><title>See Also</title>
        <para>
            <citerefentry><refentrytitle>glBindVertexBuffer</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>glVertexAttribFormat</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>glVertexBindingDivisor</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>glVertexAttribPointer</refentrytitle></citerefentry>.
        </para>
    </refsect1>
    <refsect1 xml:id="Copyright"><title>Copyright</title>
        <para>
            Copyright <trademark class="copyright"/> 2013-2014 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>
