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<title>Noise functions</title>
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<div class="header">
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<a href="#func-members">Functions</a> </div>
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<div class="title">Noise functions</div> </div>
<div class="ingroups"><a class="el" href="a00139.html">GLM Core</a></div></div>
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Functions</h2></td></tr>
<tr><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
<tr><td class="memTemplItemLeft" align="right" valign="top">genType::value_type&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00132.html#ga687ac48ae4591c0da916052e469aad74">noise1</a> (genType const &amp;x)</td></tr>
<tr><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
<tr><td class="memTemplItemLeft" align="right" valign="top">detail::tvec2&lt; typename <br class="typebreak"/>
genType::value_type &gt;&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00132.html#ga528fc75920119a7ab65ef6dccef28752">noise2</a> (genType const &amp;x)</td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">detail::tvec3&lt; typename <br class="typebreak"/>
genType::value_type &gt;&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00132.html#gaf1589bc1859b8dc53d737ece36b59b85">noise3</a> (genType const &amp;x)</td></tr>
<tr><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
<tr><td class="memTemplItemLeft" align="right" valign="top">detail::tvec4&lt; typename <br class="typebreak"/>
genType::value_type &gt;&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00132.html#ga7b3cd0ab6f03142dd9ff3054e7fe5299">noise4</a> (genType const &amp;x)</td></tr>
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<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<p>Noise functions are stochastic functions that can be used to increase visual complexity. </p>
<p>Values returned by the following noise functions give the appearance of randomness, but are not truly random. </p>
<hr/><h2>Function Documentation</h2>
<a class="anchor" id="ga687ac48ae4591c0da916052e469aad74"></a><!-- doxytag: member="glm::noise1" ref="ga687ac48ae4591c0da916052e469aad74" args="(genType const &amp;x)" -->
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<p>Returns a 1D noise value based on the input value x. </p>
<dl><dt><b>Template Parameters:</b></dt><dd>
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<tr><td class="paramname">genType</td><td>Floating-point scalar or vector types. </td></tr>
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<dl class="see"><dt><b>See also:</b></dt><dd><a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/noise1.xml">GLSL noise1 man page</a> </dd>
<dd>
<a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.13 Noise Functions</a> </dd></dl>
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<p>Returns a 2D noise value based on the input value x. </p>
<dl><dt><b>Template Parameters:</b></dt><dd>
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<tr><td class="paramname">genType</td><td>Floating-point scalar or vector types. </td></tr>
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<dl class="see"><dt><b>See also:</b></dt><dd><a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/noise2.xml">GLSL noise2 man page</a> </dd>
<dd>
<a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.13 Noise Functions</a> </dd></dl>
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<a class="anchor" id="gaf1589bc1859b8dc53d737ece36b59b85"></a><!-- doxytag: member="glm::noise3" ref="gaf1589bc1859b8dc53d737ece36b59b85" args="(genType const &amp;x)" -->
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<p>Returns a 3D noise value based on the input value x. </p>
<dl><dt><b>Template Parameters:</b></dt><dd>
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<tr><td class="paramname">genType</td><td>Floating-point scalar or vector types. </td></tr>
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<dl class="see"><dt><b>See also:</b></dt><dd><a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/noise3.xml">GLSL noise3 man page</a> </dd>
<dd>
<a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.13 Noise Functions</a> </dd></dl>
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<a class="anchor" id="ga7b3cd0ab6f03142dd9ff3054e7fe5299"></a><!-- doxytag: member="glm::noise4" ref="ga7b3cd0ab6f03142dd9ff3054e7fe5299" args="(genType const &amp;x)" -->
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<p>Returns a 4D noise value based on the input value x. </p>
<dl><dt><b>Template Parameters:</b></dt><dd>
<table class="">
<tr><td class="paramname">genType</td><td>Floating-point scalar or vector types. </td></tr>
</table>
</dd>
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<dl class="see"><dt><b>See also:</b></dt><dd><a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/noise4.xml">GLSL noise4 man page</a> </dd>
<dd>
<a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.13 Noise Functions</a> </dd></dl>
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