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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="a00160.html">GTX Extensions (Experimental)</a></div></div> </div>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
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<tr class="memitem:gaac333418d0c4e0cc6d3d219ed606c238"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
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<tr class="memitem:ga70aa3c80d8bb22e021c6c3ebdcf8e3ee"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
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<tr class="memitem:ga3b02c1d6e0c754144e2f1e110bf9f16c"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
<tr class="memitem:ga3b02c1d6e0c754144e2f1e110bf9f16c"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00196.html#ga3b02c1d6e0c754144e2f1e110bf9f16c">fastNormalize</a> (genType const &amp;x)</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<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>
<p>&lt;<a class="el" href="a00026.html" title="OpenGL Mathematics (glm.g-truc.net) ">glm/gtx/fast_square_root.hpp</a>&gt; need to be included to use these functionalities. </p>
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<h2 class="groupheader">Function Documentation</h2>
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<a class="anchor" id="gaac333418d0c4e0cc6d3d219ed606c238"></a>
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<td class="memname">GLM_FUNC_DECL genType glm::fastDistance </td>
<td>(</td>
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<td class="paramtype">genType&#160;</td>
<td class="paramname"><em>x</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">genType&#160;</td>
<td class="paramname"><em>y</em>&#160;</td>
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<td>)</td>
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</div><div class="memdoc">
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<p>Faster than the common distance function but less accurate. </p>
<p>From GLM_GTX_fast_square_root extension. </p>
</div>
</div>
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<td class="memname">GLM_FUNC_DECL T glm::fastDistance </td>
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<td>(</td>
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<td class="paramtype">vecType&lt; T, P &gt; const &amp;&#160;</td>
<td class="paramname"><em>x</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">vecType&lt; T, P &gt; const &amp;&#160;</td>
<td class="paramname"><em>y</em>&#160;</td>
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<td>)</td>
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</tr>
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</div><div class="memdoc">
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<p>Faster than the common distance function but less accurate. </p>
<p>From GLM_GTX_fast_square_root extension. </p>
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</div>
</div>
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<a class="anchor" id="ga7f081b14d9c7035c8714eba5f7f75a8f"></a>
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<td class="memname">GLM_FUNC_DECL genType glm::fastInverseSqrt </td>
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<td>(</td>
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<td class="paramtype">genType&#160;</td>
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<td class="paramname"><em>x</em></td><td>)</td>
<td></td>
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</div><div class="memdoc">
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<p>Faster than the common inversesqrt function but less accurate. </p>
<p>From GLM_GTX_fast_square_root extension. </p>
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</div>
</div>
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<td class="memname">GLM_FUNC_DECL vecType&lt;T, P&gt; glm::fastInverseSqrt </td>
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<td>(</td>
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<td class="paramtype">vecType&lt; T, P &gt; const &amp;&#160;</td>
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<td class="paramname"><em>x</em></td><td>)</td>
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<p>Faster than the common inversesqrt function but less accurate. </p>
<p>From GLM_GTX_fast_square_root extension. </p>
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</div>
</div>
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<td class="memname">GLM_FUNC_DECL genType::value_type glm::fastLength </td>
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<td>(</td>
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<td class="paramtype">genType const &amp;&#160;</td>
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<td class="paramname"><em>x</em></td><td>)</td>
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<p>Faster than the common length function but less accurate. </p>
<p>From GLM_GTX_fast_square_root extension. </p>
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</div>
</div>
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<td class="memname">GLM_FUNC_DECL genType glm::fastNormalize </td>
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<td>(</td>
<td class="paramtype">genType const &amp;&#160;</td>
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<td class="paramname"><em>x</em></td><td>)</td>
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<p>Faster than the common normalize function but less accurate. </p>
<p>From GLM_GTX_fast_square_root extension. </p>
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<td class="memname">GLM_FUNC_DECL genType glm::fastSqrt </td>
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<td>(</td>
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<td class="paramtype">genType&#160;</td>
<td class="paramname"><em>x</em></td><td>)</td>
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<td></td>
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<p>Faster than the common sqrt function but less accurate. </p>
<p>From GLM_GTX_fast_square_root extension. </p>
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