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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="headertitle">
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<div class="title">Noise functions</div> </div>
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<div class="ingroups"><a class="el" href="a00141.html">GLM Core</a></div></div><!--header-->
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<div class="contents">
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
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Functions</h2></td></tr>
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<tr class="memitem:ga687ac48ae4591c0da916052e469aad74"><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
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<tr class="memitem:ga687ac48ae4591c0da916052e469aad74"><td class="memTemplItemLeft" align="right" valign="top">genType::value_type </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00134.html#ga687ac48ae4591c0da916052e469aad74">noise1</a> (genType const &x)</td></tr>
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<tr class="separator:ga687ac48ae4591c0da916052e469aad74"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga528fc75920119a7ab65ef6dccef28752"><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
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<tr class="memitem:ga528fc75920119a7ab65ef6dccef28752"><td class="memTemplItemLeft" align="right" valign="top">detail::tvec2< typename <br class="typebreak"/>
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genType::value_type > </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00134.html#ga528fc75920119a7ab65ef6dccef28752">noise2</a> (genType const &x)</td></tr>
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<tr class="separator:ga528fc75920119a7ab65ef6dccef28752"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gaf1589bc1859b8dc53d737ece36b59b85"><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
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<tr class="memitem:gaf1589bc1859b8dc53d737ece36b59b85"><td class="memTemplItemLeft" align="right" valign="top">detail::tvec3< typename <br class="typebreak"/>
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genType::value_type > </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00134.html#gaf1589bc1859b8dc53d737ece36b59b85">noise3</a> (genType const &x)</td></tr>
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<tr class="separator:gaf1589bc1859b8dc53d737ece36b59b85"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga7b3cd0ab6f03142dd9ff3054e7fe5299"><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
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<tr class="memitem:ga7b3cd0ab6f03142dd9ff3054e7fe5299"><td class="memTemplItemLeft" align="right" valign="top">detail::tvec4< typename <br class="typebreak"/>
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genType::value_type > </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00134.html#ga7b3cd0ab6f03142dd9ff3054e7fe5299">noise4</a> (genType const &x)</td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<p>Noise functions are stochastic functions that can be used to increase visual complexity. </p>
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<p>Values returned by the following noise functions give the appearance of randomness, but are not truly random. </p>
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<h2 class="groupheader">Function Documentation</h2>
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<a class="anchor" id="ga687ac48ae4591c0da916052e469aad74"></a>
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<td class="memname">genType::value_type glm::noise1 </td>
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<td>(</td>
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<td class="paramtype">genType const & </td>
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<td class="paramname"><em>x</em></td><td>)</td>
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<td></td>
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<p>Returns a 1D noise value based on the input value x. </p>
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<dl class="tparams"><dt>Template Parameters</dt><dd>
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<table class="tparams">
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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>
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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>
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<dd>
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<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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<td class="memname">detail::tvec2<typename genType::value_type> glm::noise2 </td>
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<td>(</td>
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<td class="paramtype">genType const & </td>
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<p>Returns a 2D noise value based on the input value x. </p>
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<dl class="tparams"><dt>Template Parameters</dt><dd>
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<table class="tparams">
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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>
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<dd>
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<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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<td class="memname">detail::tvec3<typename genType::value_type> glm::noise3 </td>
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<td>(</td>
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<td class="paramtype">genType const & </td>
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<td class="paramname"><em>x</em></td><td>)</td>
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<p>Returns a 3D noise value based on the input value x. </p>
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<dl class="tparams"><dt>Template Parameters</dt><dd>
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<table class="tparams">
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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/noise3.xml">GLSL noise3 man page</a> </dd>
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<dd>
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<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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<td class="memname">detail::tvec4<typename genType::value_type> glm::noise4 </td>
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<td>(</td>
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<td class="paramtype">genType const & </td>
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<p>Returns a 4D noise value based on the input value x. </p>
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<dl class="tparams"><dt>Template Parameters</dt><dd>
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<table class="tparams">
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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/noise4.xml">GLSL noise4 man page</a> </dd>
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<dd>
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<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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