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<?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" /><link rel="stylesheet" type="text/css" href="opengl-man.css" /><title>glBindSampler - OpenGL 3.3 Reference Pages</title><meta name="generator" content="DocBook XSL Stylesheets V1.69.1" /></head><body><div class="refentry" lang="en" xml:lang="en"><a id="glBindSampler"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glBindSampler — bind a named sampler to a texturing target</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">glBindSampler</b>(</code></td><td>GLuint  </td><td><var class="pdparam">unit</var>, </td></tr><tr><td> </td><td>GLuint  </td><td><var class="pdparam">sampler</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>unit</code></em></span></dt><dd><p>
                    Specifies the index of the texture unit to which the sampler is bound.
                </p></dd><dt><span class="term"><em class="parameter"><code>sampler</code></em></span></dt><dd><p>
                    Specifies the name of a sampler.
                </p></dd></dl></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="description"></a><h2>Description</h2><p>
            <code class="function">glBindSampler</code> binds <em class="parameter"><code>sampler</code></em> to the texture unit at index <em class="parameter"><code>unit</code></em>.
            <em class="parameter"><code>sampler</code></em> must be zero or the name of a sampler object previously returned from a call to
            <a href="glGenSamplers.xml"><span class="citerefentry"><span class="refentrytitle">glGenSamplers</span></span></a>. <em class="parameter"><code>unit</code></em> must be less than the value
            of <code class="constant">GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS</code>.
        </p><p>
            When a sampler object is bound to a texture unit, its state supersedes that of
            the texture object bound to that texture unit. If the sampler name zero is bound to
            a texture unit, the currently bound texture's sampler state becomes active. A single
            sampler object may be bound to multiple texture units simultaneously.
        </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="notes"></a><h2>Notes</h2><p>
            <code class="function">glBindSampler</code> is available only if the GL version is 3.3 or higher.
        </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="errors"></a><h2>Errors</h2><p>
            <code class="constant">GL_INVALID_VALUE</code> is generated if <em class="parameter"><code>unit</code></em> is greater than or equal to the value of
            <code class="constant">GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS</code>.
        </p><p>
            <code class="constant">GL_INVALID_OPERATION</code> is generated if <em class="parameter"><code>sampler</code></em> is not zero or a name previously
            returned from a call to <a href="glGenSamplers.xml"><span class="citerefentry"><span class="refentrytitle">glGenSamplers</span></span></a>, or if such a name has
            been deleted by a call to <a href="glDeleteSamplers.xml"><span class="citerefentry"><span class="refentrytitle">glDeleteSamplers</span></span></a>.
        </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="associatedgets"></a><h2>Associated Gets</h2><p>
            <a href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_SAMPLER_BINDING</code>
        </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="seealso"></a><h2>See Also</h2><p>
            <a href="glGenSamplers.xml"><span class="citerefentry"><span class="refentrytitle">glGenSamplers</span></span></a>,
            <a href="glDeleteSamplers.xml"><span class="citerefentry"><span class="refentrytitle">glDeleteSamplers</span></span></a>,
            <a href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a>,
            <a href="glSamplerParameter.xml"><span class="citerefentry"><span class="refentrytitle">glSamplerParameter</span></span></a>,
            <a href="glGetSamplerParameter.xml"><span class="citerefentry"><span class="refentrytitle">glGetSamplerParameter</span></span></a>,
            <a href="glGenTextures.xml"><span class="citerefentry"><span class="refentrytitle">glGenTextures</span></span></a>,
            <a href="glBindTexture.xml"><span class="citerefentry"><span class="refentrytitle">glBindTexture</span></span></a>,
            <a href="glDeleteTextures.xml"><span class="citerefentry"><span class="refentrytitle">glDeleteTextures</span></span></a>
        </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="Copyright"></a><h2>Copyright</h2><p>
            Copyright <span class="trademark"></span>© 2010 Khronos Group. 
            This material may be distributed subject to the terms and conditions set forth in 
            the Open Publication License, v 1.0, 8 June 1999.
            <a href="http://opencontent.org/openpub/" target="_top">http://opencontent.org/openpub/</a>.
        </p></div></div></body></html>
