Commit | Line | Data |
---|---|---|
7faf1d71 AW |
1 | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "xhtml1-transitional.dtd"> |
2 | <!-- saved from url=(0013)about:internet --> | |
3 | <?xml-stylesheet type="text/xsl" href="mathml.xsl"?><html xmlns="http://www.w3.org/1999/xhtml" xmlns:pref="http://www.w3.org/2002/Math/preference" pref:renderer="mathplayer-dl"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>glLoadIdentity</title><meta name="generator" content="DocBook XSL Stylesheets V1.73.2" /></head><body><div class="refentry" lang="en" xml:lang="en"><a id="glLoadIdentity"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glLoadIdentity — replace the current matrix with the identity 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">glLoadIdentity</b>(</code></td><td> </td><td><var class="pdparam">void</var><code>)</code>;</td></tr></table></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="description"></a><h2>Description</h2><p> | |
4 | <code class="function">glLoadIdentity</code> replaces the current matrix with the identity matrix. | |
5 | It is semantically equivalent to calling <a class="citerefentry" href="glLoadMatrix.xml"><span class="citerefentry"><span class="refentrytitle">glLoadMatrix</span></span></a> | |
6 | with the identity matrix | |
7 | </p><p> | |
8 | </p><p> | |
9 | </p><div class="informalequation"><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> | |
10 | ||
11 | <mml:mfenced open="(" close=")"> | |
12 | <mml:mfenced open="" close=""> | |
13 | <mml:mtable> | |
14 | <mml:mtr> | |
15 | <mml:mtd> | |
16 | <mml:mn>1</mml:mn> | |
17 | </mml:mtd> | |
18 | <mml:mtd> | |
19 | <mml:mn>0</mml:mn> | |
20 | </mml:mtd> | |
21 | <mml:mtd> | |
22 | <mml:mn>0</mml:mn> | |
23 | </mml:mtd> | |
24 | <mml:mtd> | |
25 | <mml:mn>0</mml:mn> | |
26 | </mml:mtd> | |
27 | </mml:mtr> | |
28 | <mml:mtr> | |
29 | <mml:mtd> | |
30 | <mml:mn>0</mml:mn> | |
31 | </mml:mtd> | |
32 | <mml:mtd> | |
33 | <mml:mn>1</mml:mn> | |
34 | </mml:mtd> | |
35 | <mml:mtd> | |
36 | <mml:mn>0</mml:mn> | |
37 | </mml:mtd> | |
38 | <mml:mtd> | |
39 | <mml:mn>0</mml:mn> | |
40 | </mml:mtd> | |
41 | </mml:mtr> | |
42 | <mml:mtr> | |
43 | <mml:mtd> | |
44 | <mml:mn>0</mml:mn> | |
45 | </mml:mtd> | |
46 | <mml:mtd> | |
47 | <mml:mn>0</mml:mn> | |
48 | </mml:mtd> | |
49 | <mml:mtd> | |
50 | <mml:mn>1</mml:mn> | |
51 | </mml:mtd> | |
52 | <mml:mtd> | |
53 | <mml:mn>0</mml:mn> | |
54 | </mml:mtd> | |
55 | </mml:mtr> | |
56 | <mml:mtr> | |
57 | <mml:mtd> | |
58 | <mml:mn>0</mml:mn> | |
59 | </mml:mtd> | |
60 | <mml:mtd> | |
61 | <mml:mn>0</mml:mn> | |
62 | </mml:mtd> | |
63 | <mml:mtd> | |
64 | <mml:mn>0</mml:mn> | |
65 | </mml:mtd> | |
66 | <mml:mtd> | |
67 | <mml:mn>1</mml:mn> | |
68 | </mml:mtd> | |
69 | </mml:mtr> | |
70 | </mml:mtable> | |
71 | </mml:mfenced> | |
72 | </mml:mfenced> | |
73 | </mml:math></div><p> | |
74 | </p><p> | |
75 | </p><p> | |
76 | but in some cases it is more efficient. | |
77 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="errors"></a><h2>Errors</h2><p> | |
78 | <code class="constant">GL_INVALID_OPERATION</code> is generated if <code class="function">glLoadIdentity</code> | |
79 | is executed between the execution of <a class="citerefentry" href="glBegin.xml"><span class="citerefentry"><span class="refentrytitle">glBegin</span></span></a> | |
80 | and the corresponding execution of <a class="citerefentry" href="glEnd.xml"><span class="citerefentry"><span class="refentrytitle">glEnd</span></span></a>. | |
81 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="associatedgets"></a><h2>Associated Gets</h2><p> | |
82 | <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> | |
83 | </p><p> | |
84 | <a class="citerefentry" href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_COLOR_MATRIX</code> | |
85 | </p><p> | |
86 | <a class="citerefentry" href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_MODELVIEW_MATRIX</code> | |
87 | </p><p> | |
88 | <a class="citerefentry" href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_PROJECTION_MATRIX</code> | |
89 | </p><p> | |
90 | <a class="citerefentry" href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_TEXTURE_MATRIX</code> | |
91 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="seealso"></a><h2>See Also</h2><p> | |
92 | <a class="citerefentry" href="glLoadMatrix.xml"><span class="citerefentry"><span class="refentrytitle">glLoadMatrix</span></span></a>, | |
93 | <a class="citerefentry" href="glLoadTransposeMatrix.xml"><span class="citerefentry"><span class="refentrytitle">glLoadTransposeMatrix</span></span></a>, | |
94 | <a class="citerefentry" href="glMatrixMode.xml"><span class="citerefentry"><span class="refentrytitle">glMatrixMode</span></span></a>, | |
95 | <a class="citerefentry" href="glMultMatrix.xml"><span class="citerefentry"><span class="refentrytitle">glMultMatrix</span></span></a>, | |
96 | <a class="citerefentry" href="glMultTransposeMatrix.xml"><span class="citerefentry"><span class="refentrytitle">glMultTransposeMatrix</span></span></a>, | |
97 | <a class="citerefentry" href="glPushMatrix.xml"><span class="citerefentry"><span class="refentrytitle">glPushMatrix</span></span></a> | |
98 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="Copyright"></a><h2>Copyright</h2><p> | |
99 | Copyright <span class="trademark"></span>© 1991-2006 | |
100 | Silicon Graphics, Inc. This document is licensed under the SGI | |
101 | Free Software B License. For details, see | |
102 | <a class="ulink" href="http://oss.sgi.com/projects/FreeB/" target="_top">http://oss.sgi.com/projects/FreeB/</a>. | |
103 | </p></div></div></body></html> |