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  40. <a href="#func-members">Functions</a>  </div>
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  42. <div class="title">GLM_GTC_quaternion<div class="ingroups"><a class="el" href="a00154.html">GTC Extensions (Stable)</a></div></div>  </div>
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  47. Functions</h2></td></tr>
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  109. <tr class="memitem:ga484c4633f7c05d8e29ee8b452350f539"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL tvec4&lt; bool, P &gt;&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00172.html#ga484c4633f7c05d8e29ee8b452350f539">notEqual</a> (tquat&lt; T, P &gt; const &amp;x, tquat&lt; T, P &gt; const &amp;y)</td></tr>
    110. 

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  111. <tr class="memitem:ga2c08b93a4261c10748fd4d2104346f17"><td class="memTemplParams" colspan="2">template&lt;typename T , precision P&gt; </td></tr>
    112. 

  112. <tr class="memitem:ga2c08b93a4261c10748fd4d2104346f17"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL T&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00172.html#ga2c08b93a4261c10748fd4d2104346f17">pitch</a> (tquat&lt; T, P &gt; const &amp;x)</td></tr>
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  114. <tr class="memitem:ga950f8acff3e33bbda77895a3dcb7e5ce"><td class="memTemplParams" colspan="2">template&lt;typename T , precision P&gt; </td></tr>
    115. 

  115. <tr class="memitem:ga950f8acff3e33bbda77895a3dcb7e5ce"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL tquat&lt; T, P &gt;&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00172.html#ga950f8acff3e33bbda77895a3dcb7e5ce">quat_cast</a> (tmat3x3&lt; T, P &gt; const &amp;x)</td></tr>
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  117. <tr class="memitem:ga3e4615e9884dd0f41f5617b9848a5d9c"><td class="memTemplParams" colspan="2">template&lt;typename T , precision P&gt; </td></tr>
    118. 

  118. <tr class="memitem:ga3e4615e9884dd0f41f5617b9848a5d9c"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL tquat&lt; T, P &gt;&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00172.html#ga3e4615e9884dd0f41f5617b9848a5d9c">quat_cast</a> (tmat4x4&lt; T, P &gt; const &amp;x)</td></tr>
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  120. <tr class="memitem:ga4fd705376c6c1fd667be0055a0ea58ec"><td class="memTemplParams" colspan="2">template&lt;typename T , precision P&gt; </td></tr>
    121. 

  121. <tr class="memitem:ga4fd705376c6c1fd667be0055a0ea58ec"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL T&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00172.html#ga4fd705376c6c1fd667be0055a0ea58ec">roll</a> (tquat&lt; T, P &gt; const &amp;x)</td></tr>
    122. 

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    123. 

  123. <tr class="memitem:gaa8f42979c921e450ff2812fb43c25702"><td class="memTemplParams" colspan="2">template&lt;typename T , precision P&gt; </td></tr>
    124. 

  124. <tr class="memitem:gaa8f42979c921e450ff2812fb43c25702"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL tquat&lt; T, P &gt;&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00172.html#gaa8f42979c921e450ff2812fb43c25702">rotate</a> (tquat&lt; T, P &gt; const &amp;q, T const &amp;angle, tvec3&lt; T, P &gt; const &amp;axis)</td></tr>
    125. 

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  126. <tr class="memitem:ga22b438c7252f3fa5b773c9882471652a"><td class="memTemplParams" colspan="2">template&lt;typename T , precision P&gt; </td></tr>
    127. 

  127. <tr class="memitem:ga22b438c7252f3fa5b773c9882471652a"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL tquat&lt; T, P &gt;&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00172.html#ga22b438c7252f3fa5b773c9882471652a">slerp</a> (tquat&lt; T, P &gt; const &amp;x, tquat&lt; T, P &gt; const &amp;y, T a)</td></tr>
    128. 

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    129. 

  129. <tr class="memitem:ga724a5df282b70cec0a6cb0d6dcddb6d6"><td class="memTemplParams" colspan="2">template&lt;typename T , precision P&gt; </td></tr>
    130. 

  130. <tr class="memitem:ga724a5df282b70cec0a6cb0d6dcddb6d6"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL T&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00172.html#ga724a5df282b70cec0a6cb0d6dcddb6d6">yaw</a> (tquat&lt; T, P &gt; const &amp;x)</td></tr>
    131. 

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    132. 

  132. </table>
    133. 

  133. <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
    134. 

  134. <p>Defines a templated quaternion type and several quaternion operations. </p>
    135. 

  135. <p>&lt;<a class="el" href="a00087.html" title="GLM_GTC_quaternion ">glm/gtc/quaternion.hpp</a>&gt; need to be included to use these functionalities. </p>
    136. 

  136. <h2 class="groupheader">Function Documentation</h2>
    137. 

  137. <a class="anchor" id="gad4a4448baedb198b2b1e7880d2544dc9"></a>
    138. 

  138. <div class="memitem">
    139. 

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    140. 

  140.       <table class="memname">
    141. 

  141.         <tr>
    142. 

  142.           <td class="memname">GLM_FUNC_DECL T glm::angle </td>
    143. 

  143.           <td>(</td>
    144. 

  144.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    145. 

  145.           <td class="paramname"><em>x</em></td><td>)</td>
    146. 

  146.           <td></td>
    147. 

  147.         </tr>
    148. 

  148.       </table>
    149. 

  149. </div><div class="memdoc">
    150. 

  150. 

  151. <p>Returns the quaternion rotation angle. </p>
    152. 

  152. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00172.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
    153. 

  153. 

  154. </div>
    155. 

  155. </div>
    156. 

  156. <a class="anchor" id="ga37ae19405f1ccf766f27e4fcd035d859"></a>
    157. 

  157. <div class="memitem">
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  159.       <table class="memname">
    160. 

  160.         <tr>
    161. 

  161.           <td class="memname">GLM_FUNC_DECL tquat&lt;T, P&gt; glm::angleAxis </td>
    162. 

  162.           <td>(</td>
    163. 

  163.           <td class="paramtype">T const &amp;&#160;</td>
    164. 

  164.           <td class="paramname"><em>angle</em>, </td>
    165. 

  165.         </tr>
    166. 

  166.         <tr>
    167. 

  167.           <td class="paramkey"></td>
    168. 

  168.           <td></td>
    169. 

  169.           <td class="paramtype">tvec3&lt; T, P &gt; const &amp;&#160;</td>
    170. 

  170.           <td class="paramname"><em>axis</em>&#160;</td>
    171. 

  171.         </tr>
    172. 

  172.         <tr>
    173. 

  173.           <td></td>
    174. 

  174.           <td>)</td>
    175. 

  175.           <td></td><td></td>
    176. 

  176.         </tr>
    177. 

  177.       </table>
    178. 

  178. </div><div class="memdoc">
    179. 

  179. 

  180. <p>Build a quaternion from an angle and a normalized axis. </p>
    181. 

  181. <dl class="params"><dt>Parameters</dt><dd>
    182. 

  182.   <table class="params">
    183. 

  183.     <tr><td class="paramname">angle</td><td>Angle expressed in radians. </td></tr>
    184. 

  184.     <tr><td class="paramname">axis</td><td>Axis of the quaternion, must be normalized.</td></tr>
    185. 

  185.   </table>
    186. 

  186.   </dd>
    187. 

  187. </dl>
    188. 

  188. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00172.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
    189. 

  189. 

  190. </div>
    191. 

  191. </div>
    192. 

  192. <a class="anchor" id="ga0b3e87a13b2708154b72259e50789a19"></a>
    193. 

  193. <div class="memitem">
    194. 

  194. <div class="memproto">
    195. 

  195.       <table class="memname">
    196. 

  196.         <tr>
    197. 

  197.           <td class="memname">GLM_FUNC_DECL tvec3&lt;T, P&gt; glm::axis </td>
    198. 

  198.           <td>(</td>
    199. 

  199.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    200. 

  200.           <td class="paramname"><em>x</em></td><td>)</td>
    201. 

  201.           <td></td>
    202. 

  202.         </tr>
    203. 

  203.       </table>
    204. 

  204. </div><div class="memdoc">
    205. 

  205. 

  206. <p>Returns the q rotation axis. </p>
    207. 

  207. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00172.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
    208. 

  208. 

  209. </div>
    210. 

  210. </div>
    211. 

  211. <a class="anchor" id="gab1ace864fbf189ffa368950001808a3c"></a>
    212. 

  212. <div class="memitem">
    213. 

  213. <div class="memproto">
    214. 

  214.       <table class="memname">
    215. 

  215.         <tr>
    216. 

  216.           <td class="memname">GLM_FUNC_DECL tquat&lt;T, P&gt; glm::conjugate </td>
    217. 

  217.           <td>(</td>
    218. 

  218.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    219. 

  219.           <td class="paramname"><em>q</em></td><td>)</td>
    220. 

  220.           <td></td>
    221. 

  221.         </tr>
    222. 

  222.       </table>
    223. 

  223. </div><div class="memdoc">
    224. 

  224. 

  225. <p>Returns the q conjugate. </p>
    226. 

  226. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00172.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
    227. 

  227. 

  228. </div>
    229. 

  229. </div>
    230. 

  230. <a class="anchor" id="gac54dfc83de465a2d03e90d342242ab3d"></a>
    231. 

  231. <div class="memitem">
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    233. 

  233.       <table class="memname">
    234. 

  234.         <tr>
    235. 

  235.           <td class="memname">GLM_FUNC_DECL T glm::dot </td>
    236. 

  236.           <td>(</td>
    237. 

  237.           <td class="paramtype">quatType&lt; T, P &gt; const &amp;&#160;</td>
    238. 

  238.           <td class="paramname"><em>x</em>, </td>
    239. 

  239.         </tr>
    240. 

  240.         <tr>
    241. 

  241.           <td class="paramkey"></td>
    242. 

  242.           <td></td>
    243. 

  243.           <td class="paramtype">quatType&lt; T, P &gt; const &amp;&#160;</td>
    244. 

  244.           <td class="paramname"><em>y</em>&#160;</td>
    245. 

  245.         </tr>
    246. 

  246.         <tr>
    247. 

  247.           <td></td>
    248. 

  248.           <td>)</td>
    249. 

  249.           <td></td><td></td>
    250. 

  250.         </tr>
    251. 

  251.       </table>
    252. 

  252. </div><div class="memdoc">
    253. 

  253. 

  254. <p>Returns dot product of q1 and q2, i.e., q1[0] * q2[0] + q1[1] * q2[1] + ... </p>
    255. 

  255. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00172.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
    256. 

  256. 

  257. </div>
    258. 

  258. </div>
    259. 

  259. <a class="anchor" id="gac187115710365e0b2902220b9611e7b6"></a>
    260. 

  260. <div class="memitem">
    261. 

  261. <div class="memproto">
    262. 

  262.       <table class="memname">
    263. 

  263.         <tr>
    264. 

  264.           <td class="memname">GLM_FUNC_DECL tvec4&lt;bool, P&gt; glm::equal </td>
    265. 

  265.           <td>(</td>
    266. 

  266.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    267. 

  267.           <td class="paramname"><em>x</em>, </td>
    268. 

  268.         </tr>
    269. 

  269.         <tr>
    270. 

  270.           <td class="paramkey"></td>
    271. 

  271.           <td></td>
    272. 

  272.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    273. 

  273.           <td class="paramname"><em>y</em>&#160;</td>
    274. 

  274.         </tr>
    275. 

  275.         <tr>
    276. 

  276.           <td></td>
    277. 

  277.           <td>)</td>
    278. 

  278.           <td></td><td></td>
    279. 

  279.         </tr>
    280. 

  280.       </table>
    281. 

  281. </div><div class="memdoc">
    282. 

  282. 

  283. <p>Returns the component-wise comparison of result x == y. </p>
    284. 

  284. <dl class="tparams"><dt>Template Parameters</dt><dd>
    285. 

  285.   <table class="tparams">
    286. 

  286.     <tr><td class="paramname">quatType</td><td>Floating-point quaternion types.</td></tr>
    287. 

  287.   </table>
    288. 

  288.   </dd>
    289. 

  289. </dl>
    290. 

  290. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00172.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
    291. 

  291. 

  292. </div>
    293. 

  293. </div>
    294. 

  294. <a class="anchor" id="gadb92ec1c1b0dd6b024176a73fbef3e64"></a>
    295. 

  295. <div class="memitem">
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  297.       <table class="memname">
    298. 

  298.         <tr>
    299. 

  299.           <td class="memname">GLM_FUNC_DECL tvec3&lt;T, P&gt; glm::eulerAngles </td>
    300. 

  300.           <td>(</td>
    301. 

  301.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    302. 

  302.           <td class="paramname"><em>x</em></td><td>)</td>
    303. 

  303.           <td></td>
    304. 

  304.         </tr>
    305. 

  305.       </table>
    306. 

  306. </div><div class="memdoc">
    307. 

  307. 

  308. <p>Returns euler angles, pitch as x, yaw as y, roll as z. </p>
    309. 

  309. <p>The result is expressed in radians if GLM_FORCE_RADIANS is defined or degrees otherwise.</p>
    310. 

  310. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00172.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
    311. 

  311. 

  312. </div>
    313. 

  313. </div>
    314. 

  314. <a class="anchor" id="ga09d21a588ae425ac7517ea65cc59a5ae"></a>
    315. 

  315. <div class="memitem">
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  317.       <table class="memname">
    318. 

  318.         <tr>
    319. 

  319.           <td class="memname">GLM_FUNC_DECL tvec4&lt;bool, P&gt; glm::greaterThan </td>
    320. 

  320.           <td>(</td>
    321. 

  321.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    322. 

  322.           <td class="paramname"><em>x</em>, </td>
    323. 

  323.         </tr>
    324. 

  324.         <tr>
    325. 

  325.           <td class="paramkey"></td>
    326. 

  326.           <td></td>
    327. 

  327.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    328. 

  328.           <td class="paramname"><em>y</em>&#160;</td>
    329. 

  329.         </tr>
    330. 

  330.         <tr>
    331. 

  331.           <td></td>
    332. 

  332.           <td>)</td>
    333. 

  333.           <td></td><td></td>
    334. 

  334.         </tr>
    335. 

  335.       </table>
    336. 

  336. </div><div class="memdoc">
    337. 

  337. 

  338. <p>Returns the component-wise comparison of result x &gt; y. </p>
    339. 

  339. <dl class="tparams"><dt>Template Parameters</dt><dd>
    340. 

  340.   <table class="tparams">
    341. 

  341.     <tr><td class="paramname">quatType</td><td>Floating-point quaternion types.</td></tr>
    342. 

  342.   </table>
    343. 

  343.   </dd>
    344. 

  344. </dl>
    345. 

  345. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00172.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
    346. 

  346. 

  347. </div>
    348. 

  348. </div>
    349. 

  349. <a class="anchor" id="ga0906a221a2037519fcf316ea5c1e3b3e"></a>
    350. 

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    353. 

  353.         <tr>
    354. 

  354.           <td class="memname">GLM_FUNC_DECL tvec4&lt;bool, P&gt; glm::greaterThanEqual </td>
    355. 

  355.           <td>(</td>
    356. 

  356.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    357. 

  357.           <td class="paramname"><em>x</em>, </td>
    358. 

  358.         </tr>
    359. 

  359.         <tr>
    360. 

  360.           <td class="paramkey"></td>
    361. 

  361.           <td></td>
    362. 

  362.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    363. 

  363.           <td class="paramname"><em>y</em>&#160;</td>
    364. 

  364.         </tr>
    365. 

  365.         <tr>
    366. 

  366.           <td></td>
    367. 

  367.           <td>)</td>
    368. 

  368.           <td></td><td></td>
    369. 

  369.         </tr>
    370. 

  370.       </table>
    371. 

  371. </div><div class="memdoc">
    372. 

  372. 

  373. <p>Returns the component-wise comparison of result x &gt;= y. </p>
    374. 

  374. <dl class="tparams"><dt>Template Parameters</dt><dd>
    375. 

  375.   <table class="tparams">
    376. 

  376.     <tr><td class="paramname">quatType</td><td>Floating-point quaternion types.</td></tr>
    377. 

  377.   </table>
    378. 

  378.   </dd>
    379. 

  379. </dl>
    380. 

  380. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00172.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
    381. 

  381. 

  382. </div>
    383. 

  383. </div>
    384. 

  384. <a class="anchor" id="ga5f47300c024c2d809944e6ac661d6d14"></a>
    385. 

  385. <div class="memitem">
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    387. 

  387.       <table class="memname">
    388. 

  388.         <tr>
    389. 

  389.           <td class="memname">GLM_FUNC_DECL tquat&lt;T, P&gt; glm::inverse </td>
    390. 

  390.           <td>(</td>
    391. 

  391.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    392. 

  392.           <td class="paramname"><em>q</em></td><td>)</td>
    393. 

  393.           <td></td>
    394. 

  394.         </tr>
    395. 

  395.       </table>
    396. 

  396. </div><div class="memdoc">
    397. 

  397. 

  398. <p>Returns the q inverse. </p>
    399. 

  399. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00172.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
    400. 

  400. 

  401. </div>
    402. 

  402. </div>
    403. 

  403. <a class="anchor" id="ga0a850f06736d25887536d0da88e63c70"></a>
    404. 

  404. <div class="memitem">
    405. 

  405. <div class="memproto">
    406. 

  406.       <table class="memname">
    407. 

  407.         <tr>
    408. 

  408.           <td class="memname">GLM_FUNC_DECL tvec4&lt;bool, P&gt; glm::isinf </td>
    409. 

  409.           <td>(</td>
    410. 

  410.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    411. 

  411.           <td class="paramname"><em>x</em></td><td>)</td>
    412. 

  412.           <td></td>
    413. 

  413.         </tr>
    414. 

  414.       </table>
    415. 

  415. </div><div class="memdoc">
    416. 

  416. 

  417. <p>Returns true if x holds a positive infinity or negative infinity representation in the underlying implementation's set of floating point representations. </p>
    418. 

  418. <p>Returns false otherwise, including for implementations with no infinity representations.</p>
    419. 

  419. <dl class="tparams"><dt>Template Parameters</dt><dd>
    420. 

  420.   <table class="tparams">
    421. 

  421.     <tr><td class="paramname">genType</td><td>Floating-point scalar or vector types. </td></tr>
    422. 

  422.   </table>
    423. 

  423.   </dd>
    424. 

  424. </dl>
    425. 

  425. 

  426. </div>
    427. 

  427. </div>
    428. 

  428. <a class="anchor" id="gad2fc52dd4ba5ff79cc56b3e0f9c092ed"></a>
    429. 

  429. <div class="memitem">
    430. 

  430. <div class="memproto">
    431. 

  431.       <table class="memname">
    432. 

  432.         <tr>
    433. 

  433.           <td class="memname">GLM_FUNC_DECL tvec4&lt;bool, P&gt; glm::isnan </td>
    434. 

  434.           <td>(</td>
    435. 

  435.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    436. 

  436.           <td class="paramname"><em>x</em></td><td>)</td>
    437. 

  437.           <td></td>
    438. 

  438.         </tr>
    439. 

  439.       </table>
    440. 

  440. </div><div class="memdoc">
    441. 

  441. 

  442. <p>Returns true if x holds a NaN (not a number) representation in the underlying implementation's set of floating point representations. </p>
    443. 

  443. <p>Returns false otherwise, including for implementations with no NaN representations.</p>
    444. 

  444. <p>/!\ When using compiler fast math, this function may fail.</p>
    445. 

  445. <dl class="tparams"><dt>Template Parameters</dt><dd>
    446. 

  446.   <table class="tparams">
    447. 

  447.     <tr><td class="paramname">genType</td><td>Floating-point scalar or vector types. </td></tr>
    448. 

  448.   </table>
    449. 

  449.   </dd>
    450. 

  450. </dl>
    451. 

  451. 

  452. </div>
    453. 

  453. </div>
    454. 

  454. <a class="anchor" id="gac682181783027544c8d251b4d3a60cf8"></a>
    455. 

  455. <div class="memitem">
    456. 

  456. <div class="memproto">
    457. 

  457.       <table class="memname">
    458. 

  458.         <tr>
    459. 

  459.           <td class="memname">GLM_FUNC_DECL T glm::length </td>
    460. 

  460.           <td>(</td>
    461. 

  461.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    462. 

  462.           <td class="paramname"><em>q</em></td><td>)</td>
    463. 

  463.           <td></td>
    464. 

  464.         </tr>
    465. 

  465.       </table>
    466. 

  466. </div><div class="memdoc">
    467. 

  467. 

  468. <p>Returns the length of the quaternion. </p>
    469. 

  469. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00172.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
    470. 

  470. 

  471. </div>
    472. 

  472. </div>
    473. 

  473. <a class="anchor" id="ga5692804fa4db9e762a1c19b607e54435"></a>
    474. 

  474. <div class="memitem">
    475. 

  475. <div class="memproto">
    476. 

  476.       <table class="memname">
    477. 

  477.         <tr>
    478. 

  478.           <td class="memname">GLM_FUNC_DECL tquat&lt;T, P&gt; glm::lerp </td>
    479. 

  479.           <td>(</td>
    480. 

  480.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    481. 

  481.           <td class="paramname"><em>x</em>, </td>
    482. 

  482.         </tr>
    483. 

  483.         <tr>
    484. 

  484.           <td class="paramkey"></td>
    485. 

  485.           <td></td>
    486. 

  486.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    487. 

  487.           <td class="paramname"><em>y</em>, </td>
    488. 

  488.         </tr>
    489. 

  489.         <tr>
    490. 

  490.           <td class="paramkey"></td>
    491. 

  491.           <td></td>
    492. 

  492.           <td class="paramtype">T&#160;</td>
    493. 

  493.           <td class="paramname"><em>a</em>&#160;</td>
    494. 

  494.         </tr>
    495. 

  495.         <tr>
    496. 

  496.           <td></td>
    497. 

  497.           <td>)</td>
    498. 

  498.           <td></td><td></td>
    499. 

  499.         </tr>
    500. 

  500.       </table>
    501. 

  501. </div><div class="memdoc">
    502. 

  502. 

  503. <p>Linear interpolation of two quaternions. </p>
    504. 

  504. <p>The interpolation is oriented.</p>
    505. 

  505. <dl class="params"><dt>Parameters</dt><dd>
    506. 

  506.   <table class="params">
    507. 

  507.     <tr><td class="paramname">x</td><td>A quaternion </td></tr>
    508. 

  508.     <tr><td class="paramname">y</td><td>A quaternion </td></tr>
    509. 

  509.     <tr><td class="paramname">a</td><td>Interpolation factor. The interpolation is defined in the range [0, 1]. </td></tr>
    510. 

  510.   </table>
    511. 

  511.   </dd>
    512. 

  512. </dl>
    513. 

  513. <dl class="tparams"><dt>Template Parameters</dt><dd>
    514. 

  514.   <table class="tparams">
    515. 

  515.     <tr><td class="paramname">T</td><td>Value type used to build the quaternion. Supported: half, float or double. </td></tr>
    516. 

  516.   </table>
    517. 

  517.   </dd>
    518. 

  518. </dl>
    519. 

  519. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00172.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
    520. 

  520. 

  521. </div>
    522. 

  522. </div>
    523. 

  523. <a class="anchor" id="ga91a40d16a3b5bb47d71ac1a3fb688ffa"></a>
    524. 

  524. <div class="memitem">
    525. 

  525. <div class="memproto">
    526. 

  526.       <table class="memname">
    527. 

  527.         <tr>
    528. 

  528.           <td class="memname">GLM_FUNC_DECL tvec4&lt;bool, P&gt; glm::lessThan </td>
    529. 

  529.           <td>(</td>
    530. 

  530.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    531. 

  531.           <td class="paramname"><em>x</em>, </td>
    532. 

  532.         </tr>
    533. 

  533.         <tr>
    534. 

  534.           <td class="paramkey"></td>
    535. 

  535.           <td></td>
    536. 

  536.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    537. 

  537.           <td class="paramname"><em>y</em>&#160;</td>
    538. 

  538.         </tr>
    539. 

  539.         <tr>
    540. 

  540.           <td></td>
    541. 

  541.           <td>)</td>
    542. 

  542.           <td></td><td></td>
    543. 

  543.         </tr>
    544. 

  544.       </table>
    545. 

  545. </div><div class="memdoc">
    546. 

  546. 

  547. <p>Returns the component-wise comparison result of x &lt; y. </p>
    548. 

  548. <dl class="tparams"><dt>Template Parameters</dt><dd>
    549. 

  549.   <table class="tparams">
    550. 

  550.     <tr><td class="paramname">quatType</td><td>Floating-point quaternion types.</td></tr>
    551. 

  551.   </table>
    552. 

  552.   </dd>
    553. 

  553. </dl>
    554. 

  554. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00172.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
    555. 

  555. 

  556. </div>
    557. 

  557. </div>
    558. 

  558. <a class="anchor" id="ga7c81996ed2724f26fe76faf352c76294"></a>
    559. 

  559. <div class="memitem">
    560. 

  560. <div class="memproto">
    561. 

  561.       <table class="memname">
    562. 

  562.         <tr>
    563. 

  563.           <td class="memname">GLM_FUNC_DECL tvec4&lt;bool, P&gt; glm::lessThanEqual </td>
    564. 

  564.           <td>(</td>
    565. 

  565.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    566. 

  566.           <td class="paramname"><em>x</em>, </td>
    567. 

  567.         </tr>
    568. 

  568.         <tr>
    569. 

  569.           <td class="paramkey"></td>
    570. 

  570.           <td></td>
    571. 

  571.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    572. 

  572.           <td class="paramname"><em>y</em>&#160;</td>
    573. 

  573.         </tr>
    574. 

  574.         <tr>
    575. 

  575.           <td></td>
    576. 

  576.           <td>)</td>
    577. 

  577.           <td></td><td></td>
    578. 

  578.         </tr>
    579. 

  579.       </table>
    580. 

  580. </div><div class="memdoc">
    581. 

  581. 

  582. <p>Returns the component-wise comparison of result x &lt;= y. </p>
    583. 

  583. <dl class="tparams"><dt>Template Parameters</dt><dd>
    584. 

  584.   <table class="tparams">
    585. 

  585.     <tr><td class="paramname">quatType</td><td>Floating-point quaternion types.</td></tr>
    586. 

  586.   </table>
    587. 

  587.   </dd>
    588. 

  588. </dl>
    589. 

  589. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00172.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
    590. 

  590. 

  591. </div>
    592. 

  592. </div>
    593. 

  593. <a class="anchor" id="gae04c39422eb4e450ec8c4f45a1057b40"></a>
    594. 

  594. <div class="memitem">
    595. 

  595. <div class="memproto">
    596. 

  596.       <table class="memname">
    597. 

  597.         <tr>
    598. 

  598.           <td class="memname">GLM_FUNC_DECL tmat3x3&lt;T, P&gt; glm::mat3_cast </td>
    599. 

  599.           <td>(</td>
    600. 

  600.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    601. 

  601.           <td class="paramname"><em>x</em></td><td>)</td>
    602. 

  602.           <td></td>
    603. 

  603.         </tr>
    604. 

  604.       </table>
    605. 

  605. </div><div class="memdoc">
    606. 

  606. 

  607. <p>Converts a quaternion to a 3 * 3 matrix. </p>
    608. 

  608. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00172.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
    609. 

  609. 

  610. <p>Referenced by <a class="el" href="a00088_source.html#l00124">glm::toMat3()</a>.</p>
    611. 

  611. 

  612. </div>
    613. 

  613. </div>
    614. 

  614. <a class="anchor" id="ga14bb2ddf028c91542763eb6f2bba47ef"></a>
    615. 

  615. <div class="memitem">
    616. 

  616. <div class="memproto">
    617. 

  617.       <table class="memname">
    618. 

  618.         <tr>
    619. 

  619.           <td class="memname">GLM_FUNC_DECL tmat4x4&lt;T, P&gt; glm::mat4_cast </td>
    620. 

  620.           <td>(</td>
    621. 

  621.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    622. 

  622.           <td class="paramname"><em>x</em></td><td>)</td>
    623. 

  623.           <td></td>
    624. 

  624.         </tr>
    625. 

  625.       </table>
    626. 

  626. </div><div class="memdoc">
    627. 

  627. 

  628. <p>Converts a quaternion to a 4 * 4 matrix. </p>
    629. 

  629. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00172.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
    630. 

  630. 

  631. <p>Referenced by <a class="el" href="a00088_source.html#l00131">glm::toMat4()</a>.</p>
    632. 

  632. 

  633. </div>
    634. 

  634. </div>
    635. 

  635. <a class="anchor" id="ga31cc82178742c36450f5662bd4fb30b0"></a>
    636. 

  636. <div class="memitem">
    637. 

  637. <div class="memproto">
    638. 

  638.       <table class="memname">
    639. 

  639.         <tr>
    640. 

  640.           <td class="memname">GLM_FUNC_DECL tquat&lt;T, P&gt; glm::mix </td>
    641. 

  641.           <td>(</td>
    642. 

  642.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    643. 

  643.           <td class="paramname"><em>x</em>, </td>
    644. 

  644.         </tr>
    645. 

  645.         <tr>
    646. 

  646.           <td class="paramkey"></td>
    647. 

  647.           <td></td>
    648. 

  648.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    649. 

  649.           <td class="paramname"><em>y</em>, </td>
    650. 

  650.         </tr>
    651. 

  651.         <tr>
    652. 

  652.           <td class="paramkey"></td>
    653. 

  653.           <td></td>
    654. 

  654.           <td class="paramtype">T&#160;</td>
    655. 

  655.           <td class="paramname"><em>a</em>&#160;</td>
    656. 

  656.         </tr>
    657. 

  657.         <tr>
    658. 

  658.           <td></td>
    659. 

  659.           <td>)</td>
    660. 

  660.           <td></td><td></td>
    661. 

  661.         </tr>
    662. 

  662.       </table>
    663. 

  663. </div><div class="memdoc">
    664. 

  664. 

  665. <p>Spherical linear interpolation of two quaternions. </p>
    666. 

  666. <p>The interpolation is oriented and the rotation is performed at constant speed. For short path spherical linear interpolation, use the slerp function.</p>
    667. 

  667. <dl class="params"><dt>Parameters</dt><dd>
    668. 

  668.   <table class="params">
    669. 

  669.     <tr><td class="paramname">x</td><td>A quaternion </td></tr>
    670. 

  670.     <tr><td class="paramname">y</td><td>A quaternion </td></tr>
    671. 

  671.     <tr><td class="paramname">a</td><td>Interpolation factor. The interpolation is defined beyond the range [0, 1]. </td></tr>
    672. 

  672.   </table>
    673. 

  673.   </dd>
    674. 

  674. </dl>
    675. 

  675. <dl class="tparams"><dt>Template Parameters</dt><dd>
    676. 

  676.   <table class="tparams">
    677. 

  677.     <tr><td class="paramname">T</td><td>Value type used to build the quaternion. Supported: half, float or double. </td></tr>
    678. 

  678.   </table>
    679. 

  679.   </dd>
    680. 

  680. </dl>
    681. 

  681. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00172.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd>
    682. 

  682. <dd>
    683. 

  683. - slerp(tquat&lt;T, P&gt; const &amp; x, tquat&lt;T, P&gt; const &amp; y, T const &amp; a) </dd></dl>
    684. 

  684. 

  685. </div>
    686. 

  686. </div>
    687. 

  687. <a class="anchor" id="ga35b6bcb22ac6d1e4a85440f5b69bdf86"></a>
    688. 

  688. <div class="memitem">
    689. 

  689. <div class="memproto">
    690. 

  690.       <table class="memname">
    691. 

  691.         <tr>
    692. 

  692.           <td class="memname">GLM_FUNC_DECL tquat&lt;T, P&gt; glm::normalize </td>
    693. 

  693.           <td>(</td>
    694. 

  694.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    695. 

  695.           <td class="paramname"><em>q</em></td><td>)</td>
    696. 

  696.           <td></td>
    697. 

  697.         </tr>
    698. 

  698.       </table>
    699. 

  699. </div><div class="memdoc">
    700. 

  700. 

  701. <p>Returns the normalized quaternion. </p>
    702. 

  702. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00172.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
    703. 

  703. 

  704. </div>
    705. 

  705. </div>
    706. 

  706. <a class="anchor" id="ga484c4633f7c05d8e29ee8b452350f539"></a>
    707. 

  707. <div class="memitem">
    708. 

  708. <div class="memproto">
    709. 

  709.       <table class="memname">
    710. 

  710.         <tr>
    711. 

  711.           <td class="memname">GLM_FUNC_DECL tvec4&lt;bool, P&gt; glm::notEqual </td>
    712. 

  712.           <td>(</td>
    713. 

  713.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    714. 

  714.           <td class="paramname"><em>x</em>, </td>
    715. 

  715.         </tr>
    716. 

  716.         <tr>
    717. 

  717.           <td class="paramkey"></td>
    718. 

  718.           <td></td>
    719. 

  719.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    720. 

  720.           <td class="paramname"><em>y</em>&#160;</td>
    721. 

  721.         </tr>
    722. 

  722.         <tr>
    723. 

  723.           <td></td>
    724. 

  724.           <td>)</td>
    725. 

  725.           <td></td><td></td>
    726. 

  726.         </tr>
    727. 

  727.       </table>
    728. 

  728. </div><div class="memdoc">
    729. 

  729. 

  730. <p>Returns the component-wise comparison of result x != y. </p>
    731. 

  731. <dl class="tparams"><dt>Template Parameters</dt><dd>
    732. 

  732.   <table class="tparams">
    733. 

  733.     <tr><td class="paramname">quatType</td><td>Floating-point quaternion types.</td></tr>
    734. 

  734.   </table>
    735. 

  735.   </dd>
    736. 

  736. </dl>
    737. 

  737. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00172.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
    738. 

  738. 

  739. </div>
    740. 

  740. </div>
    741. 

  741. <a class="anchor" id="ga2c08b93a4261c10748fd4d2104346f17"></a>
    742. 

  742. <div class="memitem">
    743. 

  743. <div class="memproto">
    744. 

  744.       <table class="memname">
    745. 

  745.         <tr>
    746. 

  746.           <td class="memname">GLM_FUNC_DECL T glm::pitch </td>
    747. 

  747.           <td>(</td>
    748. 

  748.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    749. 

  749.           <td class="paramname"><em>x</em></td><td>)</td>
    750. 

  750.           <td></td>
    751. 

  751.         </tr>
    752. 

  752.       </table>
    753. 

  753. </div><div class="memdoc">
    754. 

  754. 

  755. <p>Returns pitch value of euler angles expressed in radians. </p>
    756. 

  756. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00220.html" title="Extented quaternion types and functions. ">GLM_GTX_quaternion</a> </dd></dl>
    757. 

  757. 

  758. </div>
    759. 

  759. </div>
    760. 

  760. <a class="anchor" id="ga950f8acff3e33bbda77895a3dcb7e5ce"></a>
    761. 

  761. <div class="memitem">
    762. 

  762. <div class="memproto">
    763. 

  763.       <table class="memname">
    764. 

  764.         <tr>
    765. 

  765.           <td class="memname">GLM_FUNC_DECL tquat&lt;T, P&gt; glm::quat_cast </td>
    766. 

  766.           <td>(</td>
    767. 

  767.           <td class="paramtype">tmat3x3&lt; T, P &gt; const &amp;&#160;</td>
    768. 

  768.           <td class="paramname"><em>x</em></td><td>)</td>
    769. 

  769.           <td></td>
    770. 

  770.         </tr>
    771. 

  771.       </table>
    772. 

  772. </div><div class="memdoc">
    773. 

  773. 

  774. <p>Converts a 3 * 3 matrix to a quaternion. </p>
    775. 

  775. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00172.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
    776. 

  776. 

  777. <p>Referenced by <a class="el" href="a00088_source.html#l00138">glm::toQuat()</a>.</p>
    778. 

  778. 

  779. </div>
    780. 

  780. </div>
    781. 

  781. <a class="anchor" id="ga3e4615e9884dd0f41f5617b9848a5d9c"></a>
    782. 

  782. <div class="memitem">
    783. 

  783. <div class="memproto">
    784. 

  784.       <table class="memname">
    785. 

  785.         <tr>
    786. 

  786.           <td class="memname">GLM_FUNC_DECL tquat&lt;T, P&gt; glm::quat_cast </td>
    787. 

  787.           <td>(</td>
    788. 

  788.           <td class="paramtype">tmat4x4&lt; T, P &gt; const &amp;&#160;</td>
    789. 

  789.           <td class="paramname"><em>x</em></td><td>)</td>
    790. 

  790.           <td></td>
    791. 

  791.         </tr>
    792. 

  792.       </table>
    793. 

  793. </div><div class="memdoc">
    794. 

  794. 

  795. <p>Converts a 4 * 4 matrix to a quaternion. </p>
    796. 

  796. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00172.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
    797. 

  797. 

  798. </div>
    799. 

  799. </div>
    800. 

  800. <a class="anchor" id="ga4fd705376c6c1fd667be0055a0ea58ec"></a>
    801. 

  801. <div class="memitem">
    802. 

  802. <div class="memproto">
    803. 

  803.       <table class="memname">
    804. 

  804.         <tr>
    805. 

  805.           <td class="memname">GLM_FUNC_DECL T glm::roll </td>
    806. 

  806.           <td>(</td>
    807. 

  807.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    808. 

  808.           <td class="paramname"><em>x</em></td><td>)</td>
    809. 

  809.           <td></td>
    810. 

  810.         </tr>
    811. 

  811.       </table>
    812. 

  812. </div><div class="memdoc">
    813. 

  813. 

  814. <p>Returns roll value of euler angles expressed in radians. </p>
    815. 

  815. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00220.html" title="Extented quaternion types and functions. ">GLM_GTX_quaternion</a> </dd></dl>
    816. 

  816. 

  817. </div>
    818. 

  818. </div>
    819. 

  819. <a class="anchor" id="gaa8f42979c921e450ff2812fb43c25702"></a>
    820. 

  820. <div class="memitem">
    821. 

  821. <div class="memproto">
    822. 

  822.       <table class="memname">
    823. 

  823.         <tr>
    824. 

  824.           <td class="memname">GLM_FUNC_DECL tquat&lt;T, P&gt; glm::rotate </td>
    825. 

  825.           <td>(</td>
    826. 

  826.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    827. 

  827.           <td class="paramname"><em>q</em>, </td>
    828. 

  828.         </tr>
    829. 

  829.         <tr>
    830. 

  830.           <td class="paramkey"></td>
    831. 

  831.           <td></td>
    832. 

  832.           <td class="paramtype">T const &amp;&#160;</td>
    833. 

  833.           <td class="paramname"><em>angle</em>, </td>
    834. 

  834.         </tr>
    835. 

  835.         <tr>
    836. 

  836.           <td class="paramkey"></td>
    837. 

  837.           <td></td>
    838. 

  838.           <td class="paramtype">tvec3&lt; T, P &gt; const &amp;&#160;</td>
    839. 

  839.           <td class="paramname"><em>axis</em>&#160;</td>
    840. 

  840.         </tr>
    841. 

  841.         <tr>
    842. 

  842.           <td></td>
    843. 

  843.           <td>)</td>
    844. 

  844.           <td></td><td></td>
    845. 

  845.         </tr>
    846. 

  846.       </table>
    847. 

  847. </div><div class="memdoc">
    848. 

  848. 

  849. <p>Rotates a quaternion from a vector of 3 components axis and an angle. </p>
    850. 

  850. <dl class="params"><dt>Parameters</dt><dd>
    851. 

  851.   <table class="params">
    852. 

  852.     <tr><td class="paramname">q</td><td>Source orientation </td></tr>
    853. 

  853.     <tr><td class="paramname">angle</td><td>Angle expressed in radians. </td></tr>
    854. 

  854.     <tr><td class="paramname">axis</td><td>Axis of the rotation</td></tr>
    855. 

  855.   </table>
    856. 

  856.   </dd>
    857. 

  857. </dl>
    858. 

  858. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00172.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
    859. 

  859. 

  860. </div>
    861. 

  861. </div>
    862. 

  862. <a class="anchor" id="ga22b438c7252f3fa5b773c9882471652a"></a>
    863. 

  863. <div class="memitem">
    864. 

  864. <div class="memproto">
    865. 

  865.       <table class="memname">
    866. 

  866.         <tr>
    867. 

  867.           <td class="memname">GLM_FUNC_DECL tquat&lt;T, P&gt; glm::slerp </td>
    868. 

  868.           <td>(</td>
    869. 

  869.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    870. 

  870.           <td class="paramname"><em>x</em>, </td>
    871. 

  871.         </tr>
    872. 

  872.         <tr>
    873. 

  873.           <td class="paramkey"></td>
    874. 

  874.           <td></td>
    875. 

  875.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    876. 

  876.           <td class="paramname"><em>y</em>, </td>
    877. 

  877.         </tr>
    878. 

  878.         <tr>
    879. 

  879.           <td class="paramkey"></td>
    880. 

  880.           <td></td>
    881. 

  881.           <td class="paramtype">T&#160;</td>
    882. 

  882.           <td class="paramname"><em>a</em>&#160;</td>
    883. 

  883.         </tr>
    884. 

  884.         <tr>
    885. 

  885.           <td></td>
    886. 

  886.           <td>)</td>
    887. 

  887.           <td></td><td></td>
    888. 

  888.         </tr>
    889. 

  889.       </table>
    890. 

  890. </div><div class="memdoc">
    891. 

  891. 

  892. <p>Spherical linear interpolation of two quaternions. </p>
    893. 

  893. <p>The interpolation always take the short path and the rotation is performed at constant speed.</p>
    894. 

  894. <dl class="params"><dt>Parameters</dt><dd>
    895. 

  895.   <table class="params">
    896. 

  896.     <tr><td class="paramname">x</td><td>A quaternion </td></tr>
    897. 

  897.     <tr><td class="paramname">y</td><td>A quaternion </td></tr>
    898. 

  898.     <tr><td class="paramname">a</td><td>Interpolation factor. The interpolation is defined beyond the range [0, 1]. </td></tr>
    899. 

  899.   </table>
    900. 

  900.   </dd>
    901. 

  901. </dl>
    902. 

  902. <dl class="tparams"><dt>Template Parameters</dt><dd>
    903. 

  903.   <table class="tparams">
    904. 

  904.     <tr><td class="paramname">T</td><td>Value type used to build the quaternion. Supported: half, float or double. </td></tr>
    905. 

  905.   </table>
    906. 

  906.   </dd>
    907. 

  907. </dl>
    908. 

  908. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00172.html" title="Defines a templated quaternion type and several quaternion operations. ">GLM_GTC_quaternion</a> </dd></dl>
    909. 

  909. 

  910. </div>
    911. 

  911. </div>
    912. 

  912. <a class="anchor" id="ga724a5df282b70cec0a6cb0d6dcddb6d6"></a>
    913. 

  913. <div class="memitem">
    914. 

  914. <div class="memproto">
    915. 

  915.       <table class="memname">
    916. 

  916.         <tr>
    917. 

  917.           <td class="memname">GLM_FUNC_DECL T glm::yaw </td>
    918. 

  918.           <td>(</td>
    919. 

  919.           <td class="paramtype">tquat&lt; T, P &gt; const &amp;&#160;</td>
    920. 

  920.           <td class="paramname"><em>x</em></td><td>)</td>
    921. 

  921.           <td></td>
    922. 

  922.         </tr>
    923. 

  923.       </table>
    924. 

  924. </div><div class="memdoc">
    925. 

  925. 

  926. <p>Returns yaw value of euler angles expressed in radians. </p>
    927. 

  927. <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00220.html" title="Extented quaternion types and functions. ">GLM_GTX_quaternion</a> </dd></dl>
    928. 

  928. 

  929. </div>
    930. 

  930. </div>
    931. 

  931. </div><!-- contents -->
    932. 

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    940.