jyapayne/anbox
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
anbox/external/glm/doc/api/a00198.html
Simon Fels 5070880428 external: import local copy of GLM 0.9.7.2 
This allows building against the same version of GLM across all targets
and not deal with API changes of newer GLM versions which introduce
regressions. Long term we want to migrate away from GLM and stick to a
minimal self-written subset.
2018-05-18 19:37:52 +02:00

282 lines
15 KiB
HTML
Raw Permalink Blame History

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.10"/>
<title>0.9.7: GLM_GTX_fast_square_root</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td id="projectlogo"><img alt="Logo" src="logo.png"/></td>
<td id="projectalign" style="padding-left: 0.5em;">
<div id="projectname">0.9.7
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.10 -->
<div id="navrow1" class="tabs">
<ul class="tablist">
<li><a href="index.html"><span>Main&#160;Page</span></a></li>
<li><a href="modules.html"><span>Modules</span></a></li>
<li><a href="files.html"><span>Files</span></a></li>
</ul>
</div>
</div><!-- top -->
<div class="header">
<div class="summary">
<a href="#func-members">Functions</a> </div>
<div class="headertitle">
<div class="title">GLM_GTX_fast_square_root<div class="ingroups"><a class="el" href="a00161.html">GTX Extensions (Experimental)</a></div></div> </div>
</div><!--header-->
<div class="contents">
<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&lt;typename genType &gt; </td></tr>
<tr class="memitem:gaac333418d0c4e0cc6d3d219ed606c238"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00198.html#gaac333418d0c4e0cc6d3d219ed606c238">fastDistance</a> (genType x, genType y)</td></tr>
<tr class="separator:gaac333418d0c4e0cc6d3d219ed606c238"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga6d1ac559cd77d69119e30c3aca0e14b5"><td class="memTemplParams" colspan="2">template&lt;typename T , precision P, template&lt; typename, precision &gt; class vecType&gt; </td></tr>
<tr class="memitem:ga6d1ac559cd77d69119e30c3aca0e14b5"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL T&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00198.html#ga6d1ac559cd77d69119e30c3aca0e14b5">fastDistance</a> (vecType&lt; T, P &gt; const &amp;x, vecType&lt; T, P &gt; const &amp;y)</td></tr>
<tr class="separator:ga6d1ac559cd77d69119e30c3aca0e14b5"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga7f081b14d9c7035c8714eba5f7f75a8f"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
<tr class="memitem:ga7f081b14d9c7035c8714eba5f7f75a8f"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00198.html#ga7f081b14d9c7035c8714eba5f7f75a8f">fastInverseSqrt</a> (genType x)</td></tr>
<tr class="separator:ga7f081b14d9c7035c8714eba5f7f75a8f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga903878071f92e51e551791e584a171a1"><td class="memTemplParams" colspan="2">template&lt;typename T , precision P, template&lt; typename, precision &gt; class vecType&gt; </td></tr>
<tr class="memitem:ga903878071f92e51e551791e584a171a1"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL vecType&lt; T, P &gt;&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00198.html#ga903878071f92e51e551791e584a171a1">fastInverseSqrt</a> (vecType&lt; T, P &gt; const &amp;x)</td></tr>
<tr class="separator:ga903878071f92e51e551791e584a171a1"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gafe697d6287719538346bbdf8b1367c59"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
<tr class="memitem:gafe697d6287719538346bbdf8b1367c59"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00198.html#gafe697d6287719538346bbdf8b1367c59">fastLength</a> (genType x)</td></tr>
<tr class="separator:gafe697d6287719538346bbdf8b1367c59"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gae28a3099cbd6404a4ea8ef22147ed7b0"><td class="memTemplParams" colspan="2">template&lt;typename T , precision P, template&lt; typename, precision &gt; class vecType&gt; </td></tr>
<tr class="memitem:gae28a3099cbd6404a4ea8ef22147ed7b0"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL T&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00198.html#gae28a3099cbd6404a4ea8ef22147ed7b0">fastLength</a> (vecType&lt; T, P &gt; const &amp;x)</td></tr>
<tr class="separator:gae28a3099cbd6404a4ea8ef22147ed7b0"><td class="memSeparator" colspan="2">&#160;</td></tr>
<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="a00198.html#ga3b02c1d6e0c754144e2f1e110bf9f16c">fastNormalize</a> (genType const &amp;x)</td></tr>
<tr class="separator:ga3b02c1d6e0c754144e2f1e110bf9f16c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga6c460e9414a50b2fc455c8f64c86cdc9"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
<tr class="memitem:ga6c460e9414a50b2fc455c8f64c86cdc9"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00198.html#ga6c460e9414a50b2fc455c8f64c86cdc9">fastSqrt</a> (genType x)</td></tr>
<tr class="separator:ga6c460e9414a50b2fc455c8f64c86cdc9"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaad9f601bbc3faa04dda384e4c4e1592c"><td class="memTemplParams" colspan="2">template&lt;typename T , precision P, template&lt; typename, precision &gt; class vecType&gt; </td></tr>
<tr class="memitem:gaad9f601bbc3faa04dda384e4c4e1592c"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL vecType&lt; T, P &gt;&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00198.html#gaad9f601bbc3faa04dda384e4c4e1592c">fastSqrt</a> (vecType&lt; T, P &gt; const &amp;x)</td></tr>
<tr class="separator:gaad9f601bbc3faa04dda384e4c4e1592c"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<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="a00027.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>
<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="gaac333418d0c4e0cc6d3d219ed606c238"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">GLM_FUNC_DECL genType glm::fastDistance </td>
<td>(</td>
<td class="paramtype">genType&#160;</td>
<td class="paramname"><em>x</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">genType&#160;</td>
<td class="paramname"><em>y</em>&#160;</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="a00198.html" title="Fast but less accurate implementations of square root based functions. ">GLM_GTX_fast_square_root</a> extension. </dd></dl>
</div>
</div>
<a class="anchor" id="ga6d1ac559cd77d69119e30c3aca0e14b5"></a>
<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">vecType&lt; T, P &gt; const &amp;&#160;</td>
<td class="paramname"><em>x</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">vecType&lt; T, P &gt; const &amp;&#160;</td>
<td class="paramname"><em>y</em>&#160;</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="a00198.html" title="Fast but less accurate implementations of square root based functions. ">GLM_GTX_fast_square_root</a> extension. </dd></dl>
</div>
</div>
<a class="anchor" id="ga7f081b14d9c7035c8714eba5f7f75a8f"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">GLM_FUNC_DECL genType glm::fastInverseSqrt </td>
<td>(</td>
<td class="paramtype">genType&#160;</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="a00198.html" title="Fast but less accurate implementations of square root based functions. ">GLM_GTX_fast_square_root</a> extension. </dd></dl>
</div>
</div>
<a class="anchor" id="ga903878071f92e51e551791e584a171a1"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">GLM_FUNC_DECL vecType&lt;T, P&gt; glm::fastInverseSqrt </td>
<td>(</td>
<td class="paramtype">vecType&lt; T, P &gt; const &amp;&#160;</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="a00198.html" title="Fast but less accurate implementations of square root based functions. ">GLM_GTX_fast_square_root</a> extension. </dd></dl>
</div>
</div>
<a class="anchor" id="gafe697d6287719538346bbdf8b1367c59"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">GLM_FUNC_DECL genType glm::fastLength </td>
<td>(</td>
<td class="paramtype">genType&#160;</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="a00198.html" title="Fast but less accurate implementations of square root based functions. ">GLM_GTX_fast_square_root</a> extension. </dd></dl>
</div>
</div>
<a class="anchor" id="gae28a3099cbd6404a4ea8ef22147ed7b0"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">GLM_FUNC_DECL T glm::fastLength </td>
<td>(</td>
<td class="paramtype">vecType&lt; T, P &gt; const &amp;&#160;</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="a00198.html" title="Fast but less accurate implementations of square root based functions. ">GLM_GTX_fast_square_root</a> extension. </dd></dl>
</div>
</div>
<a class="anchor" id="ga3b02c1d6e0c754144e2f1e110bf9f16c"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">GLM_FUNC_DECL genType glm::fastNormalize </td>
<td>(</td>
<td class="paramtype">genType const &amp;&#160;</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="a00198.html" title="Fast but less accurate implementations of square root based functions. ">GLM_GTX_fast_square_root</a> extension. </dd></dl>
</div>
</div>
<a class="anchor" id="ga6c460e9414a50b2fc455c8f64c86cdc9"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">GLM_FUNC_DECL genType glm::fastSqrt </td>
<td>(</td>
<td class="paramtype">genType&#160;</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="a00198.html" title="Fast but less accurate implementations of square root based functions. ">GLM_GTX_fast_square_root</a> extension. </dd></dl>
</div>
</div>
<a class="anchor" id="gaad9f601bbc3faa04dda384e4c4e1592c"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">GLM_FUNC_DECL vecType&lt;T, P&gt; glm::fastSqrt </td>
<td>(</td>
<td class="paramtype">vecType&lt; T, P &gt; const &amp;&#160;</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="a00198.html" title="Fast but less accurate implementations of square root based functions. ">GLM_GTX_fast_square_root</a> extension. </dd></dl>
</div>
</div>
</div><!-- contents -->
<!-- start footer part -->
<hr class="footer"/><address class="footer"><small>
Generated by &#160;<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/>
</a> 1.8.10
</small></address>
</body>
</html>
Reference in a new issue View git blame Copy permalink