
<refentry id="gluQuadricNormals">
    <refmeta>
        <refmetainfo>
            <copyright>
                <year>1991-2006</year>
                <holder>Silicon Graphics, Inc.</holder>
            </copyright>
        </refmetainfo>
        <refentrytitle>gluQuadricNormals</refentrytitle>
        <manvolnum>3G</manvolnum>
    </refmeta>
    <refnamediv>
        <refname>gluQuadricNormals</refname>
        <refpurpose>specify what kind of normals are desired for quadrics</refpurpose>
    </refnamediv>
    <refsynopsisdiv><title>C Specification</title>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>gluQuadricNormals</function></funcdef>
                <paramdef>GLUquadric* <parameter>quad</parameter></paramdef>
                <paramdef>GLenum <parameter>normal</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
    </refsynopsisdiv>
    <!-- eqn: ignoring delim $$ -->
    <refsect1 id="parameters"><title>Parameters</title>
        <variablelist>
        <varlistentry>
            <term><parameter>quad</parameter></term>
            <listitem>
                <para>
                    Specifies the quadrics object (created with <citerefentry><refentrytitle>gluNewQuadric</refentrytitle></citerefentry>).
                </para>
            </listitem>
        </varlistentry>
        <varlistentry>
            <term><parameter>normal</parameter></term>
            <listitem>
                <para>
                    Specifies the desired type of normals. Valid values are
                    <constant>GLU_NONE</constant>,
                    <constant>GLU_FLAT</constant>, and
                    <constant>GLU_SMOOTH</constant>.
                </para>
            </listitem>
        </varlistentry>
        </variablelist>
    </refsect1>
    <refsect1 id="description"><title>Description</title>
        <para>
            <function>gluQuadricNormals</function> specifies what kind of normals are desired for quadrics rendered with
            <parameter>quad</parameter>. The legal values are as follows:
        </para>
        <variablelist>
            <varlistentry>
                <term><constant>GLU_NONE</constant></term>
                <listitem>
                    <para>
                        No normals are generated.
                    </para>
                </listitem>
            </varlistentry>
            <varlistentry>
                <term><constant>GLU_FLAT</constant></term>
                <listitem>
                    <para>
                        One normal is generated for every facet of a quadric.
                    </para>
                </listitem>
            </varlistentry>
            <varlistentry>
                <term><constant>GLU_SMOOTH</constant></term>
                <listitem>
                    <para>
                        One normal is generated for every vertex of a quadric. This is the
                        initial value.
                    </para>
                </listitem>
            </varlistentry>
        </variablelist>
    </refsect1>
    <refsect1 id="seealso"><title>See Also</title>
        <para>
            <citerefentry><refentrytitle>gluNewQuadric</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>gluQuadricDrawStyle</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>gluQuadricOrientation</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>gluQuadricTexture</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>
