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<title>Noise functions</title>
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<a href="#func-members">Functions</a>  </div>
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<div class="title">Noise functions</div>  </div>
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Functions</h2></td></tr>
<tr class="memitem:ga687ac48ae4591c0da916052e469aad74"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
<tr class="memitem:ga687ac48ae4591c0da916052e469aad74"><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 class="memitem:ga528fc75920119a7ab65ef6dccef28752"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
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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>
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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>
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          <td class="memname">genType::value_type glm::noise1 </td>
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          <td class="paramname"><em>x</em></td><td>)</td>
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<p>Returns a 1D noise value based on the input value x. </p>
<dl class=""><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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  </dd>
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<dl class="section see"><dt>See also:</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 class=""><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="section see"><dt>See also:</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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<p>Returns a 3D noise value based on the input value x. </p>
<dl class=""><dt><b>Template Parameters:</b></dt><dd>
  <table class="">
    <tr><td class="paramname">genType</td><td>Floating-point scalar or vector types. </td></tr>
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  </dd>
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<dl class="section see"><dt>See also:</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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<p>Returns a 4D noise value based on the input value x. </p>
<dl class=""><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>
</dl>
<dl class="section see"><dt>See also:</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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