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renderer=
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"Content-Type" content=
"text/html; charset=UTF-8" /><title>glMatrixMode
</title><meta name=
"generator" content=
"DocBook XSL Stylesheets V1.73.2" /></head><body><div class=
"refentry" lang=
"en" xml:
lang=
"en"><a id=
"glMatrixMode"></a><div class=
"titlepage"></div><div class=
"refnamediv"><h2>Name
</h2><p>glMatrixMode — specify which matrix is the current matrix
</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">glMatrixMode
</b>(
</code></td><td>GLenum
</td><td><var class=
"pdparam">mode
</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>mode
</code></em></span></dt><dd><p>
4 Specifies which matrix stack is the target
5 for subsequent matrix operations.
6 Three values are accepted:
7 <code class=
"constant">GL_MODELVIEW
</code>,
8 <code class=
"constant">GL_PROJECTION
</code>, and
9 <code class=
"constant">GL_TEXTURE
</code>.
10 The initial value is
<code class=
"constant">GL_MODELVIEW
</code>.
11 Additionally, if the
<code class=
"code">ARB_imaging
</code> extension is supported,
12 <code class=
"constant">GL_COLOR
</code> is also accepted.
13 </p></dd></dl></div></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"description"></a><h2>Description
</h2><p>
14 <code class=
"function">glMatrixMode
</code> sets the current matrix mode.
15 <em class=
"parameter"><code>mode
</code></em> can assume one of four values:
16 </p><div class=
"variablelist"><dl><dt><span class=
"term"><code class=
"constant">GL_MODELVIEW
</code></span></dt><dd><p>
17 Applies subsequent matrix operations to the modelview matrix stack.
18 </p></dd><dt><span class=
"term"><code class=
"constant">GL_PROJECTION
</code></span></dt><dd><p>
19 Applies subsequent matrix operations to the projection matrix stack.
20 </p></dd><dt><span class=
"term"><code class=
"constant">GL_TEXTURE
</code></span></dt><dd><p>
21 Applies subsequent matrix operations to the texture matrix stack.
22 </p></dd><dt><span class=
"term"><code class=
"constant">GL_COLOR
</code></span></dt><dd><p>
23 Applies subsequent matrix operations to the color matrix stack.
24 </p></dd></dl></div><p>
25 To find out which matrix stack is currently the target of all matrix
26 operations, call
<a class=
"citerefentry" href=
"glGet.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGet
</span></span></a> with argument
<code class=
"constant">GL_MATRIX_MODE
</code>. The initial
27 value is
<code class=
"constant">GL_MODELVIEW
</code>.
28 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"errors"></a><h2>Errors
</h2><p>
29 <code class=
"constant">GL_INVALID_ENUM
</code> is generated if
<em class=
"parameter"><code>mode
</code></em> is not an accepted value.
31 <code class=
"constant">GL_INVALID_OPERATION
</code> is generated if
<code class=
"function">glMatrixMode
</code>
32 is executed between the execution of
<a class=
"citerefentry" href=
"glBegin.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glBegin
</span></span></a>
33 and the corresponding execution of
<a class=
"citerefentry" href=
"glEnd.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glEnd
</span></span></a>.
34 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"associatedgets"></a><h2>Associated Gets
</h2><p>
35 <a class=
"citerefentry" href=
"glGet.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGet
</span></span></a> with argument
<code class=
"constant">GL_MATRIX_MODE
</code>
36 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"seealso"></a><h2>See Also
</h2><p>
37 <a class=
"citerefentry" href=
"glLoadMatrix.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glLoadMatrix
</span></span></a>,
38 <a class=
"citerefentry" href=
"glLoadTransposeMatrix.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glLoadTransposeMatrix
</span></span></a>,
39 <a class=
"citerefentry" href=
"glMultMatrix.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glMultMatrix
</span></span></a>,
40 <a class=
"citerefentry" href=
"glMultTransposeMatrix.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glMultTransposeMatrix
</span></span></a>,
41 <a class=
"citerefentry" href=
"glPopMatrix.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glPopMatrix
</span></span></a>,
42 <a class=
"citerefentry" href=
"glPushMatrix.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glPushMatrix
</span></span></a>
43 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"Copyright"></a><h2>Copyright
</h2><p>
44 Copyright
<span class=
"trademark"></span>©
1991-
2006
45 Silicon Graphics, Inc. This document is licensed under the SGI
46 Free Software B License. For details, see
47 <a class=
"ulink" href=
"http://oss.sgi.com/projects/FreeB/" target=
"_top">http://oss.sgi.com/projects/FreeB/
</a>.
48 </p></div></div></body></html>