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<a href="#func-members">Functions</a> </div>
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<div class="title">GLM_GTX_fast_square_root<div class="ingroups"><a class="el" href="a00393.html">Experimental extensions</a></div></div> </div>
</div><!--header-->
<div class="contents">
<p>Include <<a class="el" href="a00206.html" title="GLM_GTX_fast_square_root ">glm/gtx/fast_square_root.hpp</a>> to use the features of this extension.
<a href="#details">More...</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:gaac333418d0c4e0cc6d3d219ed606c238"><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
<tr class="memitem:gaac333418d0c4e0cc6d3d219ed606c238"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL genType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00429.html#gaac333418d0c4e0cc6d3d219ed606c238">fastDistance</a> (genType x, genType y)</td></tr>
<tr class="memdesc:gaac333418d0c4e0cc6d3d219ed606c238"><td class="mdescLeft"> </td><td class="mdescRight">Faster than the common distance function but less accurate. <a href="a00429.html#gaac333418d0c4e0cc6d3d219ed606c238">More...</a><br /></td></tr>
<tr class="separator:gaac333418d0c4e0cc6d3d219ed606c238"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga42d3e771fa7cb3c60d828e315829df19"><td class="memTemplParams" colspan="2">template<length_t L, typename T , qualifier Q> </td></tr>
<tr class="memitem:ga42d3e771fa7cb3c60d828e315829df19"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL T </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00429.html#ga42d3e771fa7cb3c60d828e315829df19">fastDistance</a> (vec< L, T, Q > const &x, vec< L, T, Q > const &y)</td></tr>
<tr class="memdesc:ga42d3e771fa7cb3c60d828e315829df19"><td class="mdescLeft"> </td><td class="mdescRight">Faster than the common distance function but less accurate. <a href="a00429.html#ga42d3e771fa7cb3c60d828e315829df19">More...</a><br /></td></tr>
<tr class="separator:ga42d3e771fa7cb3c60d828e315829df19"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga7f081b14d9c7035c8714eba5f7f75a8f"><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
<tr class="memitem:ga7f081b14d9c7035c8714eba5f7f75a8f"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL genType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00429.html#ga7f081b14d9c7035c8714eba5f7f75a8f">fastInverseSqrt</a> (genType x)</td></tr>
<tr class="memdesc:ga7f081b14d9c7035c8714eba5f7f75a8f"><td class="mdescLeft"> </td><td class="mdescRight">Faster than the common inversesqrt function but less accurate. <a href="a00429.html#ga7f081b14d9c7035c8714eba5f7f75a8f">More...</a><br /></td></tr>
<tr class="separator:ga7f081b14d9c7035c8714eba5f7f75a8f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gadcd7be12b1e5ee182141359d4c45dd24"><td class="memTemplParams" colspan="2">template<length_t L, typename T , qualifier Q> </td></tr>
<tr class="memitem:gadcd7be12b1e5ee182141359d4c45dd24"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL vec< L, T, Q > </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00429.html#gadcd7be12b1e5ee182141359d4c45dd24">fastInverseSqrt</a> (vec< L, T, Q > const &x)</td></tr>
<tr class="memdesc:gadcd7be12b1e5ee182141359d4c45dd24"><td class="mdescLeft"> </td><td class="mdescRight">Faster than the common inversesqrt function but less accurate. <a href="a00429.html#gadcd7be12b1e5ee182141359d4c45dd24">More...</a><br /></td></tr>
<tr class="separator:gadcd7be12b1e5ee182141359d4c45dd24"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gafe697d6287719538346bbdf8b1367c59"><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
<tr class="memitem:gafe697d6287719538346bbdf8b1367c59"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL genType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00429.html#gafe697d6287719538346bbdf8b1367c59">fastLength</a> (genType x)</td></tr>
<tr class="memdesc:gafe697d6287719538346bbdf8b1367c59"><td class="mdescLeft"> </td><td class="mdescRight">Faster than the common length function but less accurate. <a href="a00429.html#gafe697d6287719538346bbdf8b1367c59">More...</a><br /></td></tr>
<tr class="separator:gafe697d6287719538346bbdf8b1367c59"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga90f66be92ef61e705c005e7b3209edb8"><td class="memTemplParams" colspan="2">template<length_t L, typename T , qualifier Q> </td></tr>
<tr class="memitem:ga90f66be92ef61e705c005e7b3209edb8"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL T </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00429.html#ga90f66be92ef61e705c005e7b3209edb8">fastLength</a> (vec< L, T, Q > const &x)</td></tr>
<tr class="memdesc:ga90f66be92ef61e705c005e7b3209edb8"><td class="mdescLeft"> </td><td class="mdescRight">Faster than the common length function but less accurate. <a href="a00429.html#ga90f66be92ef61e705c005e7b3209edb8">More...</a><br /></td></tr>
<tr class="separator:ga90f66be92ef61e705c005e7b3209edb8"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga3b02c1d6e0c754144e2f1e110bf9f16c"><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
<tr class="memitem:ga3b02c1d6e0c754144e2f1e110bf9f16c"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL genType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00429.html#ga3b02c1d6e0c754144e2f1e110bf9f16c">fastNormalize</a> (genType const &x)</td></tr>
<tr class="memdesc:ga3b02c1d6e0c754144e2f1e110bf9f16c"><td class="mdescLeft"> </td><td class="mdescRight">Faster than the common normalize function but less accurate. <a href="a00429.html#ga3b02c1d6e0c754144e2f1e110bf9f16c">More...</a><br /></td></tr>
<tr class="separator:ga3b02c1d6e0c754144e2f1e110bf9f16c"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga6c460e9414a50b2fc455c8f64c86cdc9"><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
<tr class="memitem:ga6c460e9414a50b2fc455c8f64c86cdc9"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL genType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00429.html#ga6c460e9414a50b2fc455c8f64c86cdc9">fastSqrt</a> (genType x)</td></tr>
<tr class="memdesc:ga6c460e9414a50b2fc455c8f64c86cdc9"><td class="mdescLeft"> </td><td class="mdescRight">Faster than the common sqrt function but less accurate. <a href="a00429.html#ga6c460e9414a50b2fc455c8f64c86cdc9">More...</a><br /></td></tr>
<tr class="separator:ga6c460e9414a50b2fc455c8f64c86cdc9"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gae83f0c03614f73eae5478c5b6274ee6d"><td class="memTemplParams" colspan="2">template<length_t L, typename T , qualifier Q> </td></tr>
<tr class="memitem:gae83f0c03614f73eae5478c5b6274ee6d"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL vec< L, T, Q > </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00429.html#gae83f0c03614f73eae5478c5b6274ee6d">fastSqrt</a> (vec< L, T, Q > const &x)</td></tr>
<tr class="memdesc:gae83f0c03614f73eae5478c5b6274ee6d"><td class="mdescLeft"> </td><td class="mdescRight">Faster than the common sqrt function but less accurate. <a href="a00429.html#gae83f0c03614f73eae5478c5b6274ee6d">More...</a><br /></td></tr>
<tr class="separator:gae83f0c03614f73eae5478c5b6274ee6d"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>Include <<a class="el" href="a00206.html" title="GLM_GTX_fast_square_root ">glm/gtx/fast_square_root.hpp</a>> to use the features of this extension. </p>
<p>Fast but less accurate implementations of square root based functions.</p><ul>
<li>Sqrt optimisation based on Newton's method, www.gamedev.net/community/forums/topic.asp?topic id=139956 </li>
</ul>
<h2 class="groupheader">Function Documentation</h2>
<a id="gaac333418d0c4e0cc6d3d219ed606c238"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gaac333418d0c4e0cc6d3d219ed606c238">◆ </a></span>fastDistance() <span class="overload">[1/2]</span></h2>
<div class="memitem">
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<table class="memname">
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<td class="memname">GLM_FUNC_DECL genType glm::fastDistance </td>
<td>(</td>
<td class="paramtype">genType </td>
<td class="paramname"><em>x</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">genType </td>
<td class="paramname"><em>y</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Faster than the common distance function but less accurate. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00429.html" title="Include <glm/gtx/fast_square_root.hpp> to use the features of this extension. ">GLM_GTX_fast_square_root</a> extension. </dd></dl>
</div>
</div>
<a id="ga42d3e771fa7cb3c60d828e315829df19"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga42d3e771fa7cb3c60d828e315829df19">◆ </a></span>fastDistance() <span class="overload">[2/2]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">GLM_FUNC_DECL T glm::fastDistance </td>
<td>(</td>
<td class="paramtype">vec< L, T, Q > const & </td>
<td class="paramname"><em>x</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">vec< L, T, Q > const & </td>
<td class="paramname"><em>y</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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</div><div class="memdoc">
<p>Faster than the common distance function but less accurate. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00429.html" title="Include <glm/gtx/fast_square_root.hpp> to use the features of this extension. ">GLM_GTX_fast_square_root</a> extension. </dd></dl>
</div>
</div>
<a id="ga7f081b14d9c7035c8714eba5f7f75a8f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga7f081b14d9c7035c8714eba5f7f75a8f">◆ </a></span>fastInverseSqrt() <span class="overload">[1/2]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">GLM_FUNC_DECL genType glm::fastInverseSqrt </td>
<td>(</td>
<td class="paramtype">genType </td>
<td class="paramname"><em>x</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Faster than the common inversesqrt function but less accurate. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00429.html" title="Include <glm/gtx/fast_square_root.hpp> to use the features of this extension. ">GLM_GTX_fast_square_root</a> extension. </dd></dl>
</div>
</div>
<a id="gadcd7be12b1e5ee182141359d4c45dd24"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gadcd7be12b1e5ee182141359d4c45dd24">◆ </a></span>fastInverseSqrt() <span class="overload">[2/2]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">GLM_FUNC_DECL vec<L, T, Q> glm::fastInverseSqrt </td>
<td>(</td>
<td class="paramtype">vec< L, T, Q > const & </td>
<td class="paramname"><em>x</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Faster than the common inversesqrt function but less accurate. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00429.html" title="Include <glm/gtx/fast_square_root.hpp> to use the features of this extension. ">GLM_GTX_fast_square_root</a> extension. </dd></dl>
</div>
</div>
<a id="gafe697d6287719538346bbdf8b1367c59"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gafe697d6287719538346bbdf8b1367c59">◆ </a></span>fastLength() <span class="overload">[1/2]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">GLM_FUNC_DECL genType glm::fastLength </td>
<td>(</td>
<td class="paramtype">genType </td>
<td class="paramname"><em>x</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Faster than the common length function but less accurate. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00429.html" title="Include <glm/gtx/fast_square_root.hpp> to use the features of this extension. ">GLM_GTX_fast_square_root</a> extension. </dd></dl>
</div>
</div>
<a id="ga90f66be92ef61e705c005e7b3209edb8"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga90f66be92ef61e705c005e7b3209edb8">◆ </a></span>fastLength() <span class="overload">[2/2]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">GLM_FUNC_DECL T glm::fastLength </td>
<td>(</td>
<td class="paramtype">vec< L, T, Q > const & </td>
<td class="paramname"><em>x</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Faster than the common length function but less accurate. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00429.html" title="Include <glm/gtx/fast_square_root.hpp> to use the features of this extension. ">GLM_GTX_fast_square_root</a> extension. </dd></dl>
</div>
</div>
<a id="ga3b02c1d6e0c754144e2f1e110bf9f16c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga3b02c1d6e0c754144e2f1e110bf9f16c">◆ </a></span>fastNormalize()</h2>
<div class="memitem">
<div class="memproto">
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<td class="memname">GLM_FUNC_DECL genType glm::fastNormalize </td>
<td>(</td>
<td class="paramtype">genType const & </td>
<td class="paramname"><em>x</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Faster than the common normalize function but less accurate. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00429.html" title="Include <glm/gtx/fast_square_root.hpp> to use the features of this extension. ">GLM_GTX_fast_square_root</a> extension. </dd></dl>
</div>
</div>
<a id="ga6c460e9414a50b2fc455c8f64c86cdc9"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga6c460e9414a50b2fc455c8f64c86cdc9">◆ </a></span>fastSqrt() <span class="overload">[1/2]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">GLM_FUNC_DECL genType glm::fastSqrt </td>
<td>(</td>
<td class="paramtype">genType </td>
<td class="paramname"><em>x</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Faster than the common sqrt function but less accurate. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00429.html" title="Include <glm/gtx/fast_square_root.hpp> to use the features of this extension. ">GLM_GTX_fast_square_root</a> extension. </dd></dl>
</div>
</div>
<a id="gae83f0c03614f73eae5478c5b6274ee6d"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gae83f0c03614f73eae5478c5b6274ee6d">◆ </a></span>fastSqrt() <span class="overload">[2/2]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">GLM_FUNC_DECL vec<L, T, Q> glm::fastSqrt </td>
<td>(</td>
<td class="paramtype">vec< L, T, Q > const & </td>
<td class="paramname"><em>x</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Faster than the common sqrt function but less accurate. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00429.html" title="Include <glm/gtx/fast_square_root.hpp> to use the features of this extension. ">GLM_GTX_fast_square_root</a> extension. </dd></dl>
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