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renderer=
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"text/html; charset=UTF-8" /><title>glFogCoord
</title><meta name=
"generator" content=
"DocBook XSL Stylesheets V1.73.2" /></head><body><div class=
"refentry" lang=
"en" xml:
lang=
"en"><a id=
"glFogCoord"></a><div class=
"titlepage"></div><div class=
"refnamediv"><h2>Name
</h2><p>glFogCoord — set the current fog coordinates
</p></div><div class=
"refsynopsisdiv"><h2>C Specification
</h2><div class=
"funcsynopsis"><table border=
"0" summary=
"Function synopsis" cellspacing=
"0" cellpadding=
"0"><tr><td><code class=
"funcdef">void
<b class=
"fsfunc">glFogCoordd
</b>(
</code></td><td>GLdouble
</td><td><var class=
"pdparam">coord
</var><code>)
</code>;
</td></tr></table></div><div class=
"funcsynopsis"><table border=
"0" summary=
"Function synopsis" cellspacing=
"0" cellpadding=
"0"><tr><td><code class=
"funcdef">void
<b class=
"fsfunc">glFogCoordf
</b>(
</code></td><td>GLfloat
</td><td><var class=
"pdparam">coord
</var><code>)
</code>;
</td></tr></table></div></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"parameters"></a><h2>Parameters
</h2><div class=
"variablelist"><dl><dt><span class=
"term"><em class=
"parameter"><code>coord
</code></em></span></dt><dd><p>
4 Specify the fog distance.
5 </p></dd></dl></div></div><div class=
"refsynopsisdiv"><h2>C Specification
</h2><div class=
"funcsynopsis"><table border=
"0" summary=
"Function synopsis" cellspacing=
"0" cellpadding=
"0"><tr><td><code class=
"funcdef">void
<b class=
"fsfunc">glFogCoorddv
</b>(
</code></td><td>GLdouble *
</td><td><var class=
"pdparam">coord
</var><code>)
</code>;
</td></tr></table></div><div class=
"funcsynopsis"><table border=
"0" summary=
"Function synopsis" cellspacing=
"0" cellpadding=
"0"><tr><td><code class=
"funcdef">void
<b class=
"fsfunc">glFogCoordfv
</b>(
</code></td><td>GLfloat *
</td><td><var class=
"pdparam">coord
</var><code>)
</code>;
</td></tr></table></div></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"parameters2"></a><h2>Parameters
</h2><div class=
"variablelist"><dl><dt><span class=
"term"><em class=
"parameter"><code>coord
</code></em></span></dt><dd><p>
6 Specifies a pointer to an array containing a single value representing the
8 </p></dd></dl></div></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"description"></a><h2>Description
</h2><p>
9 <code class=
"function">glFogCoord
</code> specifies the fog coordinate that is associated with each vertex and
10 the current raster position. The value specified is interpolated and used
11 in computing the fog color (see
<a class=
"citerefentry" href=
"glFog.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glFog
</span></span></a>).
12 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"notes"></a><h2>Notes
</h2><p>
13 <code class=
"function">glFogCoord
</code> is available only if the GL version is
1.4 or greater.
15 The current fog coordinate can be updated at any time. In particular,
16 <code class=
"function">glFogCoord
</code> can be called between a call to
<a class=
"citerefentry" href=
"glBegin.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glBegin
</span></span></a> and the corresponding
17 call to
<a class=
"citerefentry" href=
"glEnd.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glEnd
</span></span></a>.
18 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"associatedgets"></a><h2>Associated Gets
</h2><p>
19 <a class=
"citerefentry" href=
"glGet.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGet
</span></span></a> with argument
<code class=
"constant">GL_CURRENT_FOG_COORD
</code>
20 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"seealso"></a><h2>See Also
</h2><p>
21 <a class=
"citerefentry" href=
"glFog.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glFog
</span></span></a>,
22 <a class=
"citerefentry" href=
"glFogCoordPointer.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glFogCoordPointer
</span></span></a>,
23 <a class=
"citerefentry" href=
"glVertex.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glVertex
</span></span></a>
24 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"Copyright"></a><h2>Copyright
</h2><p>
25 Copyright
<span class=
"trademark"></span>©
1991-
2006
26 Silicon Graphics, Inc. This document is licensed under the SGI
27 Free Software B License. For details, see
28 <a class=
"ulink" href=
"http://oss.sgi.com/projects/FreeB/" target=
"_top">http://oss.sgi.com/projects/FreeB/
</a>.
29 </p></div></div></body></html>