<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook MathML Module V1.1b1//EN"
              "http://www.oasis-open.org/docbook/xml/mathml/1.1CR1/dbmathml.dtd">
<refentry id="glMultiTexCoord">
    <refmeta>
        <refmetainfo>
            <copyright>
                <year>1991-2006</year>
                <holder>Silicon Graphics, Inc.</holder>
            </copyright>
        </refmetainfo>
        <refentrytitle>glMultiTexCoord</refentrytitle>
        <manvolnum>3G</manvolnum>
    </refmeta>
    <refnamediv>
        <refname>glMultiTexCoord</refname>
        <refpurpose>set the current texture coordinates</refpurpose>
    </refnamediv>
    <refsynopsisdiv><title>C Specification</title>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord1s</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>GLshort <parameter>s</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord1i</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>GLint <parameter>s</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord1f</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>GLfloat <parameter>s</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord1d</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>GLdouble <parameter>s</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord2s</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>GLshort <parameter>s</parameter></paramdef>
                <paramdef>GLshort <parameter>t</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord2i</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>GLint <parameter>s</parameter></paramdef>
                <paramdef>GLint <parameter>t</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord2f</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>GLfloat <parameter>s</parameter></paramdef>
                <paramdef>GLfloat <parameter>t</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord2d</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>GLdouble <parameter>s</parameter></paramdef>
                <paramdef>GLdouble <parameter>t</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord3s</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>GLshort <parameter>s</parameter></paramdef>
                <paramdef>GLshort <parameter>t</parameter></paramdef>
                <paramdef>GLshort <parameter>r</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord3i</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>GLint <parameter>s</parameter></paramdef>
                <paramdef>GLint <parameter>t</parameter></paramdef>
                <paramdef>GLint <parameter>r</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord3f</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>GLfloat <parameter>s</parameter></paramdef>
                <paramdef>GLfloat <parameter>t</parameter></paramdef>
                <paramdef>GLfloat <parameter>r</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord3d</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>GLdouble <parameter>s</parameter></paramdef>
                <paramdef>GLdouble <parameter>t</parameter></paramdef>
                <paramdef>GLdouble <parameter>r</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord4s</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>GLshort <parameter>s</parameter></paramdef>
                <paramdef>GLshort <parameter>t</parameter></paramdef>
                <paramdef>GLshort <parameter>r</parameter></paramdef>
                <paramdef>GLshort <parameter>q</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord4i</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>GLint <parameter>s</parameter></paramdef>
                <paramdef>GLint <parameter>t</parameter></paramdef>
                <paramdef>GLint <parameter>r</parameter></paramdef>
                <paramdef>GLint <parameter>q</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord4f</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>GLfloat <parameter>s</parameter></paramdef>
                <paramdef>GLfloat <parameter>t</parameter></paramdef>
                <paramdef>GLfloat <parameter>r</parameter></paramdef>
                <paramdef>GLfloat <parameter>q</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord4d</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>GLdouble <parameter>s</parameter></paramdef>
                <paramdef>GLdouble <parameter>t</parameter></paramdef>
                <paramdef>GLdouble <parameter>r</parameter></paramdef>
                <paramdef>GLdouble <parameter>q</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
    </refsynopsisdiv>
    <!-- eqn: ignoring delim $$ -->
    <refsect1 id="parameters"><title>Parameters</title>
        <variablelist>
        <varlistentry>
            <term><parameter>target</parameter></term>
            <listitem>
                <para>
                    Specifies the texture unit whose coordinates should be modified. The number
                    of texture units is implementation dependent, but must be at least
                    two. Symbolic constant must be one of 
                    <constant>GL_TEXTURE</constant><inlineequation><mml:math><mml:mi mathvariant="italic">i</mml:mi></mml:math></inlineequation>,
                    where i ranges from 0 to <constant>GL_MAX_TEXTURE_COORDS</constant> - 1,
                    which is an implementation-dependent value.
                </para>
            </listitem>
        </varlistentry>
        <varlistentry>
            <term><parameter>s</parameter></term>
            <term><parameter>t</parameter></term>
            <term><parameter>r</parameter></term>
            <term><parameter>q</parameter></term>
            <listitem>
                <para>
                    Specify <parameter>s</parameter>, <parameter>t</parameter>, <parameter>r</parameter>, and <parameter>q</parameter> texture coordinates for
                    <parameter>target</parameter> texture unit. Not all parameters are present in all forms
                    of the command.
                </para>
            </listitem>
        </varlistentry>
        </variablelist>
    </refsect1>
    <refsynopsisdiv><title>C Specification</title>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord1sv</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>const GLshort * <parameter>v</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord1iv</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>const GLint * <parameter>v</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord1fv</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>const GLfloat * <parameter>v</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord1dv</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>const GLdouble * <parameter>v</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord2sv</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>const GLshort * <parameter>v</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord2iv</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>const GLint * <parameter>v</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord2fv</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>const GLfloat * <parameter>v</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord2dv</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>const GLdouble * <parameter>v</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord3sv</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>const GLshort * <parameter>v</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord3iv</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>const GLint * <parameter>v</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord3fv</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>const GLfloat * <parameter>v</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord3dv</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>const GLdouble * <parameter>v</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord4sv</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>const GLshort * <parameter>v</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord4iv</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>const GLint * <parameter>v</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord4fv</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>const GLfloat * <parameter>v</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glMultiTexCoord4dv</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>const GLdouble * <parameter>v</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
    </refsynopsisdiv>
    <refsect1 id="parameters2"><title>Parameters</title>
        <variablelist>
        <varlistentry>
            <term><parameter>target</parameter></term>
            <listitem>
                <para>
                    Specifies the texture unit whose coordinates should be modified. The number
                    of texture units is implementation dependent, but must be at least
                    two. Symbolic constant must be one of 
                    <constant>GL_TEXTURE</constant><inlineequation><mml:math><mml:mi mathvariant="italic">i</mml:mi></mml:math></inlineequation>,
                    where i ranges from 0 to <constant>GL_MAX_TEXTURE_COORDS</constant> - 1,
                    which is an implementation-dependent value.
                </para>
            </listitem>
        </varlistentry>
        <varlistentry>
            <term><parameter>v</parameter></term>
            <listitem>
                <para>
                    Specifies a pointer to an array of one, two, three, or four elements,
                    which in turn specify the 
                    <inlineequation><mml:math><mml:mi mathvariant="italic">s</mml:mi></mml:math></inlineequation>,
                    <inlineequation><mml:math><mml:mi mathvariant="italic">t</mml:mi></mml:math></inlineequation>,
                    <inlineequation><mml:math><mml:mi mathvariant="italic">r</mml:mi></mml:math></inlineequation>,
                    and 
                    <inlineequation><mml:math><mml:mi mathvariant="italic">q</mml:mi></mml:math></inlineequation>
                    texture coordinates.
                </para>
            </listitem>
        </varlistentry>
        </variablelist>
    </refsect1>
    <refsect1 id="description"><title>Description</title>
        <para>
            <function>glMultiTexCoord</function> specifies texture coordinates in one, two, three, or four
            dimensions.
            <function>glMultiTexCoord1</function> sets the current texture
            coordinates to 
            <inlineequation><mml:math>
                <!-- eqn: (s, 0, 0, 1):-->
                <mml:mfenced open="(" close=")">
                    <mml:mi mathvariant="italic">s</mml:mi>
                    <mml:mn>0</mml:mn>
                    <mml:mn>0</mml:mn>
                    <mml:mn>1</mml:mn>
                </mml:mfenced>
            </mml:math></inlineequation>;
            a call to <function>glMultiTexCoord2</function>
            sets them to 
            <inlineequation><mml:math>
                <!-- eqn: (s, t, 0, 1):-->
                <mml:mfenced open="(" close=")">
                    <mml:mi mathvariant="italic">s</mml:mi>
                    <mml:mi mathvariant="italic">t</mml:mi>
                    <mml:mn>0</mml:mn>
                    <mml:mn>1</mml:mn>
                </mml:mfenced>
            </mml:math></inlineequation>.
            Similarly, <function>glMultiTexCoord3</function> specifies the texture coordinates as
            <inlineequation><mml:math>
                <!-- eqn: (s, t, r, 1):-->
                <mml:mfenced open="(" close=")">
                    <mml:mi mathvariant="italic">s</mml:mi>
                    <mml:mi mathvariant="italic">t</mml:mi>
                    <mml:mi mathvariant="italic">r</mml:mi>
                    <mml:mn>1</mml:mn>
                </mml:mfenced>
            </mml:math></inlineequation>,
            and
            <function>glMultiTexCoord4</function>
            defines all four components explicitly as
            <inlineequation><mml:math>
                <!-- eqn: (s, t, r, q):-->
                <mml:mfenced open="(" close=")">
                    <mml:mi mathvariant="italic">s</mml:mi>
                    <mml:mi mathvariant="italic">t</mml:mi>
                    <mml:mi mathvariant="italic">r</mml:mi>
                    <mml:mi mathvariant="italic">q</mml:mi>
                </mml:mfenced>
            </mml:math></inlineequation>.
        </para>
        <para>
            The current texture coordinates are part of the data
            that is associated with each vertex and with the current
            raster position.
            Initially, the values for
            <inlineequation><mml:math>
                <!-- eqn: (s, t, r, q):-->
                <mml:mfenced open="(" close=")">
                    <mml:mi mathvariant="italic">s</mml:mi>
                    <mml:mi mathvariant="italic">t</mml:mi>
                    <mml:mi mathvariant="italic">r</mml:mi>
                    <mml:mi mathvariant="italic">q</mml:mi>
                </mml:mfenced>
            </mml:math></inlineequation>
            are 
            <inlineequation><mml:math>
                <!-- eqn: (0, 0, 0, 1):-->
                <mml:mfenced open="(" close=")">
                    <mml:mn>0</mml:mn>
                    <mml:mn>0</mml:mn>
                    <mml:mn>0</mml:mn>
                    <mml:mn>1</mml:mn>
                </mml:mfenced>
            </mml:math></inlineequation>.
        </para>
        <para>
        </para>
    </refsect1>
    <refsect1 id="notes"><title>Notes</title>
        <para>
            <function>glMultiTexCoord</function> is only supported if the GL version is 1.3 or greater, or if
            <code>ARB_multitexture</code> is included in the string returned by
            <citerefentry><refentrytitle>glGetString</refentrytitle></citerefentry> when called with the argument <constant>GL_EXTENSIONS</constant>.
        </para>
        <para>
            The current texture coordinates can be updated at any time.
            In particular,
            <function>glMultiTexCoord</function> can be called between a call to <citerefentry><refentrytitle>glBegin</refentrytitle></citerefentry> and the corresponding
            call to <citerefentry><refentrytitle>glEnd</refentrytitle></citerefentry>.
        </para>
        <para>
            It is always the case that <constant>GL_TEXTURE</constant>
            <inlineequation><mml:math><mml:mi mathvariant="italic">i</mml:mi></mml:math></inlineequation>
            = <constant>GL_TEXTURE0</constant> + 
            <inlineequation><mml:math><mml:mi mathvariant="italic">i</mml:mi></mml:math></inlineequation>.
        </para>
    </refsect1>
    <refsect1 id="associatedgets"><title>Associated Gets</title>
        <para>
            <citerefentry><refentrytitle>glGet</refentrytitle></citerefentry> with argument <constant>GL_CURRENT_TEXTURE_COORDS</constant> with appropriate
            texture unit selected.
        </para>
        <para>
            <citerefentry><refentrytitle>glGet</refentrytitle></citerefentry> with argument <constant>GL_MAX_TEXTURE_COORDS</constant>
        </para>
    </refsect1>
    <refsect1 id="seealso"><title>See Also</title>
        <para>
            <citerefentry><refentrytitle>glActiveTexture</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>glClientActiveTexture</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>glTexCoord</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>glTexCoordPointer</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>glVertex</refentrytitle></citerefentry>
        </para>
    </refsect1>
    <refsect1 id="Copyright"><title>Copyright</title>
        <para>
            Copyright <trademark class="copyright"></trademark> 1991-2006
            Silicon Graphics, Inc. This document is licensed under the SGI
            Free Software B License. For details, see
            <ulink url="http://oss.sgi.com/projects/FreeB/">http://oss.sgi.com/projects/FreeB/</ulink>.
        </para>
    </refsect1>
</refentry>
