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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" /><title>glGetTexParameter</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1" /></head><body><div class="refentry"><a id="glGetTexParameter"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glGetTexParameter — return texture parameter values</p></div><div class="refsynopsisdiv"><h2>C Specification</h2><div class="funcsynopsis"><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">void <strong class="fsfunc">glGetTexParameterfv</strong>(</code></td><td>GLenum <var class="pdparam">target</var>, </td></tr><tr><td> </td><td>GLenum <var class="pdparam">pname</var>, </td></tr><tr><td> </td><td>GLfloat * <var class="pdparam">params</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div><div class="funcsynopsis"><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">void <strong class="fsfunc">glGetTexParameteriv</strong>(</code></td><td>GLenum <var class="pdparam">target</var>, </td></tr><tr><td> </td><td>GLenum <var class="pdparam">pname</var>, </td></tr><tr><td> </td><td>GLint * <var class="pdparam">params</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1"><a id="parameters"></a><h2>Parameters</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>target</code></em></span></dt><dd><p>
                    Specifies the symbolic name of the target texture of the active texture unit.
                    <code class="constant">GL_TEXTURE_2D</code> and
                    <code class="constant">GL_TEXTURE_CUBE_MAP</code>
                    are accepted.
                </p></dd><dt><span class="term"><em class="parameter"><code>pname</code></em></span></dt><dd><p>
                    Specifies the symbolic name of a texture parameter.
                    <code class="constant">GL_TEXTURE_MAG_FILTER</code>,
                    <code class="constant">GL_TEXTURE_MIN_FILTER</code>,
                    <code class="constant">GL_TEXTURE_WRAP_S</code>, and
                    <code class="constant">GL_TEXTURE_WRAP_T</code>
                    are accepted.
                </p></dd><dt><span class="term"><em class="parameter"><code>params</code></em></span></dt><dd><p>
                    Returns the texture parameter.
                </p></dd></dl></div></div><div class="refsect1"><a id="description"></a><h2>Description</h2><p>
            <code class="function">glGetTexParameter</code> returns in <em class="parameter"><code>params</code></em> the 
            value of the texture parameter
            specified as <em class="parameter"><code>pname</code></em>.
            <em class="parameter"><code>target</code></em> defines the target texture of the active texture unit,
            either <code class="constant">GL_TEXTURE_2D</code> or <code class="constant">GL_TEXTURE_CUBE_MAP</code>,
            to specify two-dimensional or cube-mapped texturing.
            <em class="parameter"><code>pname</code></em> accepts the same symbols as <a class="citerefentry" href="glTexParameter.xml"><span class="citerefentry"><span class="refentrytitle">glTexParameter</span></span></a>,
            with the same interpretations:
        </p><div class="variablelist"><dl class="variablelist"><dt><span class="term"><code class="constant">GL_TEXTURE_MAG_FILTER</code></span></dt><dd><p>
                        Returns the single-valued texture magnification filter,
                        a symbolic constant. The initial value is <code class="constant">GL_LINEAR</code>.
                    </p></dd><dt><span class="term"><code class="constant">GL_TEXTURE_MIN_FILTER</code></span></dt><dd><p>
                        Returns the single-valued texture minification filter,
                        a symbolic constant. The initial value is <code class="constant">GL_NEAREST_MIPMAP_LINEAR</code>.
                    </p></dd><dt><span class="term"><code class="constant">GL_TEXTURE_WRAP_S</code></span></dt><dd><p>
                        Returns the single-valued wrapping function for texture coordinate 
                        <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"><mml:mi mathvariant="italic">s</mml:mi></mml:math>,
                        a symbolic constant. The initial value is <code class="constant">GL_REPEAT</code>.
                    </p></dd><dt><span class="term"><code class="constant">GL_TEXTURE_WRAP_T</code></span></dt><dd><p>
                        Returns the single-valued wrapping function for texture coordinate 
                        <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"><mml:mi mathvariant="italic">t</mml:mi></mml:math>,
                        a symbolic constant. The initial value is <code class="constant">GL_REPEAT</code>.
                    </p></dd></dl></div></div><div class="refsect1"><a id="notes"></a><h2>Notes</h2><p>
            If an error is generated,
            no change is made to the contents of <em class="parameter"><code>params</code></em>.
        </p></div><div class="refsect1"><a id="errors"></a><h2>Errors</h2><p>
            <code class="constant">GL_INVALID_ENUM</code> is generated if <em class="parameter"><code>target</code></em> or <em class="parameter"><code>pname</code></em> is not an
            accepted value.
        </p></div><div class="refsect1"><a id="seealso"></a><h2>See Also</h2><p>
            <a class="citerefentry" href="glTexParameter.xml"><span class="citerefentry"><span class="refentrytitle">glTexParameter</span></span></a>
        </p></div><div class="refsect1"><a id="copyright"></a><h2>Copyright</h2><p>
            Copyright <span class="trademark"></span>© 1991-2006
            Silicon Graphics, Inc. This document is licensed under the SGI
            Free Software B License. For details, see
            <a class="ulink" href="http://oss.sgi.com/projects/FreeB/" target="_top">http://oss.sgi.com/projects/FreeB/</a>.
        </p></div></div></body></html>