194 lines
7.5 KiB
HTML
194 lines
7.5 KiB
HTML
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<title>GLM_GTX_fast_square_root: Fast square root functions</title>
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<li><a href="index.html"><span>Main Page</span></a></li>
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<div class="header">
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<div class="summary">
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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">GLM_GTX_fast_square_root: Fast square root functions</div> </div>
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<div class="ingroups"><a class="el" href="a00137.html">GTX Extensions (Experimental)</a></div></div>
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<div class="contents">
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<table class="memberdecls">
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<tr><td colspan="2"><h2><a name="func-members"></a>
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Functions</h2></td></tr>
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<tr><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">genType::value_type </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00168.html#ga646eee2633e9de7274de9bc6f5af92b5">fastDistance</a> (genType const &x, genType const &y)</td></tr>
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<tr><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">genType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00168.html#ga49dd9caa2853398474e5aae377259a22">fastInverseSqrt</a> (genType const &x)</td></tr>
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<tr><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">genType::value_type </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00168.html#ga2e726cc8b9f02b7c09910858ea1afac6">fastLength</a> (genType const &x)</td></tr>
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<tr><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">genType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00168.html#ga2953e7426a420bb2b33affce7360ef40">fastNormalize</a> (genType const &x)</td></tr>
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<tr><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">genType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00168.html#gad57c343d2362c1469043adedeb8ef8eb">fastSqrt</a> (genType const &x)</td></tr>
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</table>
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<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
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<p>Fast but less accurate implementations of square root based functions. </p>
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<ul>
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<li>Sqrt optimisation based on Newton's method, www.gamedev.net/community/forums/topic.asp?topic id=139956</li>
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</ul>
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<p><<a class="el" href="a00024.html" title="OpenGL Mathematics (glm.g-truc.net)">glm/gtx/fast_square_root.hpp</a>> need to be included to use these functionalities. </p>
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<hr/><h2>Function Documentation</h2>
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<a class="anchor" id="ga646eee2633e9de7274de9bc6f5af92b5"></a><!-- doxytag: member="glm::fastDistance" ref="ga646eee2633e9de7274de9bc6f5af92b5" args="(genType const &x, genType const &y)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname">genType::value_type glm::fastDistance </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>
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</tr>
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<td class="paramkey"></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>y</em> </td>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</tr>
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</table>
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</div>
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<div class="memdoc">
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<p>Faster than the common distance function but less accurate. </p>
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<p>From GLM_GTX_fast_square_root extension. </p>
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</div>
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</div>
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<a class="anchor" id="ga49dd9caa2853398474e5aae377259a22"></a><!-- doxytag: member="glm::fastInverseSqrt" ref="ga49dd9caa2853398474e5aae377259a22" args="(genType const &x)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">genType glm::fastInverseSqrt </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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</tr>
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</table>
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</div>
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<div class="memdoc">
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<p>Faster than the common inversesqrt function but less accurate. </p>
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<p>From GLM_GTX_fast_square_root extension. </p>
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</div>
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</div>
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<a class="anchor" id="ga2e726cc8b9f02b7c09910858ea1afac6"></a><!-- doxytag: member="glm::fastLength" ref="ga2e726cc8b9f02b7c09910858ea1afac6" args="(genType const &x)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">genType::value_type glm::fastLength </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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</tr>
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</table>
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</div>
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<div class="memdoc">
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<p>Faster than the common length function but less accurate. </p>
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<p>From GLM_GTX_fast_square_root extension. </p>
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</div>
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</div>
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<a class="anchor" id="ga2953e7426a420bb2b33affce7360ef40"></a><!-- doxytag: member="glm::fastNormalize" ref="ga2953e7426a420bb2b33affce7360ef40" args="(genType const &x)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">genType glm::fastNormalize </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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</tr>
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</table>
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</div>
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<div class="memdoc">
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<p>Faster than the common normalize function but less accurate. </p>
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<p>From GLM_GTX_fast_square_root extension. </p>
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</div>
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</div>
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<a class="anchor" id="gad57c343d2362c1469043adedeb8ef8eb"></a><!-- doxytag: member="glm::fastSqrt" ref="gad57c343d2362c1469043adedeb8ef8eb" args="(genType const &x)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">genType glm::fastSqrt </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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</tr>
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</table>
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</div>
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<div class="memdoc">
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<p>Faster than the common sqrt function but less accurate. </p>
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<p>From GLM_GTX_fast_square_root extension. </p>
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</div>
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</div>
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</div>
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Generated by  <a href="http://www.doxygen.org/index.html">
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