HCoop / clinton / guile-figl.git / blame
| Commit | Line | Data |
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| 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>glClientActiveTexture</title><meta name="generator" content="DocBook XSL Stylesheets V1.73.2" /></head><body><div class="refentry" lang="en" xml:lang="en"><a id="glClientActiveTexture"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glClientActiveTexture — select active texture unit</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">glClientActiveTexture</b>(</code></td><td>GLenum </td><td><var class="pdparam">texture</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>texture</code></em></span></dt><dd><p> | |
| 4 | Specifies which texture unit to make active. The number | |
| 5 | of texture units is implementation dependent, but must be at least | |
| 6 | two. <em class="parameter"><code>texture</code></em> must be one of | |
| 7 | <code class="constant">GL_TEXTURE</code><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"><mml:mi mathvariant="italic">i</mml:mi></mml:math>, | |
| 8 | where i ranges from 0 to the value of <code class="constant">GL_MAX_TEXTURE_COORDS</code> - 1, which is an | |
| 9 | implementation-dependent value. The initial value is | |
| 10 | <code class="constant">GL_TEXTURE0</code>. | |
| 11 | </p></dd></dl></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="description"></a><h2>Description</h2><p> | |
| 12 | <code class="function">glClientActiveTexture</code> selects the vertex array client state parameters to be modified by | |
| 13 | <a class="citerefentry" href="glTexCoordPointer.xml"><span class="citerefentry"><span class="refentrytitle">glTexCoordPointer</span></span></a>, and enabled or disabled with | |
| 14 | <a class="citerefentry" href="glEnableClientState.xml"><span class="citerefentry"><span class="refentrytitle">glEnableClientState</span></span></a> or <a class="citerefentry" href="glDisableClientState.xml"><span class="citerefentry"><span class="refentrytitle">glDisableClientState</span></span></a>, respectively, | |
| 15 | when called with a parameter of <code class="constant">GL_TEXTURE_COORD_ARRAY</code>. | |
| 16 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="notes"></a><h2>Notes</h2><p> | |
| 17 | <code class="function">glClientActiveTexture</code> is supported only if the GL version is 1.3 or greater, or | |
| 18 | <code class="code">ARB_multitexture</code> is included in the string returned by | |
| 19 | <a class="citerefentry" href="glGetString.xml"><span class="citerefentry"><span class="refentrytitle">glGetString</span></span></a> when called with the argument <code class="constant">GL_EXTENSIONS</code>. | |
| 20 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="errors"></a><h2>Errors</h2><p> | |
| 21 | <code class="constant">GL_INVALID_ENUM</code> is generated if <em class="parameter"><code>texture</code></em> is not one of | |
| 22 | <code class="constant">GL_TEXTURE</code><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"><mml:mi mathvariant="italic">i</mml:mi></mml:math>, | |
| 23 | where | |
| 24 | i ranges from 0 to the value of <code class="constant">GL_MAX_TEXTURE_COORDS</code> - 1. | |
| 25 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="associatedgets"></a><h2>Associated Gets</h2><p> | |
| 26 | <a class="citerefentry" href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_CLIENT_ACTIVE_TEXTURE</code> or <code class="constant">GL_MAX_TEXTURE_COORDS</code> | |
| 27 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="seealso"></a><h2>See Also</h2><p> | |
| 28 | <a class="citerefentry" href="glActiveTexture.xml"><span class="citerefentry"><span class="refentrytitle">glActiveTexture</span></span></a>, | |
| 29 | <a class="citerefentry" href="glDisableClientState.xml"><span class="citerefentry"><span class="refentrytitle">glDisableClientState</span></span></a>, | |
| 30 | <a class="citerefentry" href="glEnableClientState.xml"><span class="citerefentry"><span class="refentrytitle">glEnableClientState</span></span></a>, | |
| 31 | <a class="citerefentry" href="glMultiTexCoord.xml"><span class="citerefentry"><span class="refentrytitle">glMultiTexCoord</span></span></a>, | |
| 32 | <a class="citerefentry" href="glTexCoordPointer.xml"><span class="citerefentry"><span class="refentrytitle">glTexCoordPointer</span></span></a> | |
| 33 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="Copyright"></a><h2>Copyright</h2><p> | |
| 34 | Copyright <span class="trademark"></span>© 1991-2006 | |
| 35 | Silicon Graphics, Inc. This document is licensed under the SGI | |
| 36 | Free Software B License. For details, see | |
| 37 | <a class="ulink" href="http://oss.sgi.com/projects/FreeB/" target="_top">http://oss.sgi.com/projects/FreeB/</a>. | |
| 38 | </p></div></div></body></html> |