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<title>GLM: glm::core::function::geometric Namespace Reference</title>
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<div class="navpath"><a class="el" href="a00124.html">glm</a>::<a class="el" href="a00125.html">core</a>::<a class="el" href="a00126.html">function</a>::<a class="el" href="a00129.html">geometric</a>
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<h1>glm::core::function::geometric Namespace Reference</h1>
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<p>Define all <a class="el" href="a00129.html" title="Define all geometric functions from Section 8.4 of GLSL 1.30.8 specification. Included...">geometric</a> functions from Section 8.4 of GLSL 1.30.8 specification. Included in <a class="el" href="a00124.html" title="GLM namespace, it contains all GLSL based features.">glm</a> namespace.
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<a href="#_details">More...</a></p>
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<table border="0" cellpadding="0" cellspacing="0">
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<tr><td colspan="2"><h2>Functions</h2></td></tr>
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<tr><td class="memTemplParams" colspan="2">template<typename valType > </td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">detail::tvec3< valType > </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00129.html#aef2c634b57ee979caa2ab897b6960e1f">cross</a> (detail::tvec3< valType > const &x, detail::tvec3< valType > const &y)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the cross product of x and y. <a href="#aef2c634b57ee979caa2ab897b6960e1f"></a><br/></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="a00129.html#aa7cb6dbe9b8224c25345f1fd6fc09e77">distance</a> (genType const &p0, genType const &p1)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the distance betwwen p0 and p1, i.e., length(p0 - p1). <a href="#aa7cb6dbe9b8224c25345f1fd6fc09e77"></a><br/></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="a00129.html#a38e1f1538ac0fedc9d6ac14910105421">dot</a> (genType const &x, genType const &y)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the dot product of x and y, i.e., result = x * y. <a href="#a38e1f1538ac0fedc9d6ac14910105421"></a><br/></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="a00129.html#ad591e8f7b1a5e311d3439dda2bb82aea">faceforward</a> (genType const &N, genType const &I, genType const &Nref)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">If dot(Nref, I) < 0.0, return N, otherwise, return -N. <a href="#ad591e8f7b1a5e311d3439dda2bb82aea"></a><br/></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="a00129.html#a10ee9a1d18c6da61cab61d8637d23847">length</a> (genType const &x)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the length of x, i.e., sqrt(x * x). <a href="#a10ee9a1d18c6da61cab61d8637d23847"></a><br/></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="a00129.html#a07ff16965f11fa17122ac874ed492276">normalize</a> (genType const &x)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns a vector in the same direction as x but with length of 1. <a href="#a07ff16965f11fa17122ac874ed492276"></a><br/></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="a00129.html#a2863d2331eb3752a5a17244c604c1d07">reflect</a> (genType const &I, genType const &N)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">For the incident vector I and surface orientation N, returns the reflection direction : result = I - 2.0 * dot(N, I) * N. <a href="#a2863d2331eb3752a5a17244c604c1d07"></a><br/></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="a00129.html#a895392ad98499a450e2cc8579d76a84d">refract</a> (genType const &I, genType const &N, typename genType::value_type const &eta)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">For the incident vector I and surface normal N, and the ratio of indices of refraction eta, return the refraction vector. <a href="#a895392ad98499a450e2cc8579d76a84d"></a><br/></td></tr>
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</table>
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<hr/><a name="_details"></a><h2>Detailed Description</h2>
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<p>Define all <a class="el" href="a00129.html" title="Define all geometric functions from Section 8.4 of GLSL 1.30.8 specification. Included...">geometric</a> functions from Section 8.4 of GLSL 1.30.8 specification. Included in <a class="el" href="a00124.html" title="GLM namespace, it contains all GLSL based features.">glm</a> namespace. </p>
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<hr/><h2>Function Documentation</h2>
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<a class="anchor" id="aef2c634b57ee979caa2ab897b6960e1f"></a><!-- doxytag: member="glm::core::function::geometric::cross" ref="aef2c634b57ee979caa2ab897b6960e1f" args="(detail::tvec3< valType > const &x, detail::tvec3< valType > const &y)" -->
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<td class="memname">detail::tvec3<valType> glm::core::function::geometric::cross </td>
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<td>(</td>
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<td class="paramtype">detail::tvec3< valType > const & </td>
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<td class="paramname"> <em>x</em>, </td>
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<p>Returns the cross product of x and y. </p>
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<p>(From GLSL 1.30.08 specification, section 8.4) </p>
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<a class="anchor" id="aa7cb6dbe9b8224c25345f1fd6fc09e77"></a><!-- doxytag: member="glm::core::function::geometric::distance" ref="aa7cb6dbe9b8224c25345f1fd6fc09e77" args="(genType const &p0, genType const &p1)" -->
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<td class="memname">genType::value_type glm::core::function::geometric::distance </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>p0</em>, </td>
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<p>Returns the distance betwwen p0 and p1, i.e., length(p0 - p1). </p>
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<p>(From GLSL 1.30.08 specification, section 8.4) </p>
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<a class="anchor" id="a38e1f1538ac0fedc9d6ac14910105421"></a><!-- doxytag: member="glm::core::function::geometric::dot" ref="a38e1f1538ac0fedc9d6ac14910105421" args="(genType const &x, genType const &y)" -->
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<td class="memname">genType::value_type glm::core::function::geometric::dot </td>
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<td>(</td>
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<p>Returns the dot product of x and y, i.e., result = x * y. </p>
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<p>(From GLSL 1.30.08 specification, section 8.4) </p>
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<a class="anchor" id="ad591e8f7b1a5e311d3439dda2bb82aea"></a><!-- doxytag: member="glm::core::function::geometric::faceforward" ref="ad591e8f7b1a5e311d3439dda2bb82aea" args="(genType const &N, genType const &I, genType const &Nref)" -->
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<td class="memname">genType glm::core::function::geometric::faceforward </td>
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<p>If dot(Nref, I) < 0.0, return N, otherwise, return -N. </p>
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<p>(From GLSL 1.30.08 specification, section 8.4) </p>
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<a class="anchor" id="a10ee9a1d18c6da61cab61d8637d23847"></a><!-- doxytag: member="glm::core::function::geometric::length" ref="a10ee9a1d18c6da61cab61d8637d23847" args="(genType const &x)" -->
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<p>Returns the length of x, i.e., sqrt(x * x). </p>
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<p>(From GLSL 1.30.08 specification, section 8.4) </p>
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<a class="anchor" id="a07ff16965f11fa17122ac874ed492276"></a><!-- doxytag: member="glm::core::function::geometric::normalize" ref="a07ff16965f11fa17122ac874ed492276" args="(genType const &x)" -->
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<p>Returns a vector in the same direction as x but with length of 1. </p>
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<p>(From GLSL 1.30.08 specification, section 8.4) </p>
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<a class="anchor" id="a2863d2331eb3752a5a17244c604c1d07"></a><!-- doxytag: member="glm::core::function::geometric::reflect" ref="a2863d2331eb3752a5a17244c604c1d07" args="(genType const &I, genType const &N)" -->
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<td>(</td>
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<p>For the incident vector I and surface orientation N, returns the reflection direction : result = I - 2.0 * dot(N, I) * N. </p>
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<p>(From GLSL 1.30.08 specification, section 8.4) </p>
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<a class="anchor" id="a895392ad98499a450e2cc8579d76a84d"></a><!-- doxytag: member="glm::core::function::geometric::refract" ref="a895392ad98499a450e2cc8579d76a84d" args="(genType const &I, genType const &N, typename genType::value_type const &eta)" -->
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<p>For the incident vector I and surface normal N, and the ratio of indices of refraction eta, return the refraction vector. </p>
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<p>(From GLSL 1.30.08 specification, section 8.4) </p>
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<hr size="1"/><address style="text-align: right;"><small>Generated on Mon Nov 16 11:23:23 2009 for GLM by
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<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.1 </small></address>
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