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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

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<div class="title">GLM_GTC_quaternion<div class="ingroups"><a class="el" href="a00160.html">GTC Extensions (Stable)</a></div></div> </div>
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Functions</h2></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>Defines a templated quaternion type and several quaternion operations. </p>
<p>&lt;<a class="el" href="a00094.html" title="OpenGL Mathematics (glm.g-truc.net) ">glm/gtc/quaternion.hpp</a>&gt; need to be included to use these functionalities. </p>
<h2 class="groupheader">Function Documentation</h2>
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<td class="memname">GLM_FUNC_DECL T glm::angle </td>
<td>(</td>
<td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
<td class="paramname"><em>x</em></td><td>)</td>
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</div><div class="memdoc">
<p>Returns the quaternion rotation angle. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00177.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
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<td class="memname">GLM_FUNC_DECL tquat&lt;T, P&gt; glm::angleAxis </td>
<td>(</td>
<td class="paramtype">T const &amp;&#160;</td>
<td class="paramname"><em>angle</em>, </td>
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<p>Build a quaternion from an angle and a normalized axis. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">angle</td><td>Angle expressed in radians. </td></tr>
<tr><td class="paramname">axis</td><td>Axis of the quaternion, must be normalized.</td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00177.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
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<p>Returns the q rotation axis. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00177.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
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<p>Returns the q conjugate. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00177.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
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<p>Returns dot product of q1 and q2, i.e., q1[0] * q2[0] + q1[1] * q2[1] + ... </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00177.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
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<p>Returns the component-wise comparison of result x == y. </p>
<dl class="tparams"><dt>Template Parameters</dt><dd>
<table class="tparams">
<tr><td class="paramname">quatType</td><td>Floating-point quaternion types.</td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00177.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
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<p>Returns euler angles, yitch as x, yaw as y, roll as z. </p>
<p>The result is expressed in radians if GLM_FORCE_RADIANS is defined or degrees otherwise.</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00177.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
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<p>Returns the component-wise comparison of result x &gt; y. </p>
<dl class="tparams"><dt>Template Parameters</dt><dd>
<table class="tparams">
<tr><td class="paramname">quatType</td><td>Floating-point quaternion types.</td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00177.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
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<td class="paramname"><em>x</em>, </td>
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<p>Returns the component-wise comparison of result x &gt;= y. </p>
<dl class="tparams"><dt>Template Parameters</dt><dd>
<table class="tparams">
<tr><td class="paramname">quatType</td><td>Floating-point quaternion types.</td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00177.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
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<p>Returns the q inverse. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00177.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
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<p>Returns the length of the quaternion. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00177.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
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<p>Linear interpolation of two quaternions. </p>
<p>The interpolation is oriented.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">x</td><td>A quaternion </td></tr>
<tr><td class="paramname">y</td><td>A quaternion </td></tr>
<tr><td class="paramname">a</td><td>Interpolation factor. The interpolation is defined in the range [0, 1]. </td></tr>
</table>
</dd>
</dl>
<dl class="tparams"><dt>Template Parameters</dt><dd>
<table class="tparams">
<tr><td class="paramname">T</td><td>Value type used to build the quaternion. Supported: half, float or double. </td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00177.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
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<p>Returns the component-wise comparison result of x &lt; y. </p>
<dl class="tparams"><dt>Template Parameters</dt><dd>
<table class="tparams">
<tr><td class="paramname">quatType</td><td>Floating-point quaternion types.</td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00177.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
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<p>Returns the component-wise comparison of result x &lt;= y. </p>
<dl class="tparams"><dt>Template Parameters</dt><dd>
<table class="tparams">
<tr><td class="paramname">quatType</td><td>Floating-point quaternion types.</td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00177.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
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<p>Converts a quaternion to a 3 * 3 matrix. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00177.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
<p>Referenced by <a class="el" href="a00095_source.html#l00153">glm::toMat3()</a>.</p>
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<p>Converts a quaternion to a 4 * 4 matrix. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00177.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
<p>Referenced by <a class="el" href="a00095_source.html#l00160">glm::toMat4()</a>.</p>
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<p>Spherical linear interpolation of two quaternions. </p>
<p>The interpolation is oriented and the rotation is performed at constant speed. For short path spherical linear interpolation, use the slerp function.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">x</td><td>A quaternion </td></tr>
<tr><td class="paramname">y</td><td>A quaternion </td></tr>
<tr><td class="paramname">a</td><td>Interpolation factor. The interpolation is defined beyond the range [0, 1]. </td></tr>
</table>
</dd>
</dl>
<dl class="tparams"><dt>Template Parameters</dt><dd>
<table class="tparams">
<tr><td class="paramname">T</td><td>Value type used to build the quaternion. Supported: half, float or double. </td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00177.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd>
<dd>
- slerp(tquat&lt;T, P&gt; const &amp; x, tquat&lt;T, P&gt; const &amp; y, T const &amp; a) </dd></dl>
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<p>Returns the normalized quaternion. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00177.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
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<p>Returns the component-wise comparison of result x != y. </p>
<dl class="tparams"><dt>Template Parameters</dt><dd>
<table class="tparams">
<tr><td class="paramname">quatType</td><td>Floating-point quaternion types.</td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00177.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
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<p>Returns pitch value of euler angles expressed in radians. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00224.html" title="Extented quaternion types and functions. ">GLM_GTX_quaternion</a> </dd></dl>
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<p>Converts a 3 * 3 matrix to a quaternion. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00177.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
<p>Referenced by <a class="el" href="a00095_source.html#l00167">glm::toQuat()</a>.</p>
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<p>Converts a 4 * 4 matrix to a quaternion. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00177.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
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<td class="memname">GLM_FUNC_DECL T glm::roll </td>
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<td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
<td class="paramname"><em>x</em></td><td>)</td>
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<p>Returns roll value of euler angles expressed in radians. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00224.html" title="Extented quaternion types and functions. ">GLM_GTX_quaternion</a> </dd></dl>
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<td class="memname">GLM_FUNC_DECL tquat&lt;T, P&gt; glm::rotate </td>
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<td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
<td class="paramname"><em>q</em>, </td>
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<td class="paramtype">tvec3&lt; T, P &gt; const &amp;&#160;</td>
<td class="paramname"><em>axis</em>&#160;</td>
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<p>Rotates a quaternion from a vector of 3 components axis and an angle. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">q</td><td>Source orientation </td></tr>
<tr><td class="paramname">angle</td><td>Angle expressed in radians. </td></tr>
<tr><td class="paramname">axis</td><td>Axis of the rotation</td></tr>
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</dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00177.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
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<td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
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<td class="paramname"><em>y</em>, </td>
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<td class="paramtype">T&#160;</td>
<td class="paramname"><em>a</em>&#160;</td>
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<p>Spherical linear interpolation of two quaternions. </p>
<p>The interpolation always take the short path and the rotation is performed at constant speed.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">x</td><td>A quaternion </td></tr>
<tr><td class="paramname">y</td><td>A quaternion </td></tr>
<tr><td class="paramname">a</td><td>Interpolation factor. The interpolation is defined beyond the range [0, 1]. </td></tr>
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</dd>
</dl>
<dl class="tparams"><dt>Template Parameters</dt><dd>
<table class="tparams">
<tr><td class="paramname">T</td><td>Value type used to build the quaternion. Supported: half, float or double. </td></tr>
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</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00177.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
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<td class="memname">GLM_FUNC_DECL T glm::yaw </td>
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<td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
<td class="paramname"><em>x</em></td><td>)</td>
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<p>Returns yaw value of euler angles expressed in radians. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00224.html" title="Extented quaternion types and functions. ">GLM_GTX_quaternion</a> </dd></dl>
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