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  12.       <p align="center"><font color="#808080" face="Arial" size="2">PowerVR Software Development Kit</a></font></p>
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    23. 

  23. <h1>PVRTQuaternion.h File Reference</h1><code>#include "<a class="el" href="PVRTGlobal_8h-source.html">PVRTGlobal.h</a>"</code><br>
    24. 

  24. <code>#include "<a class="el" href="PVRTMatrix_8h-source.html">PVRTMatrix.h</a>"</code><br>
    25. 

  25. 

  26. <p>
    27. 

  27. Include dependency graph for PVRTQuaternion.h:<p><center><img src="PVRTQuaternion_8h__incl.png" border="0" usemap="#PVRTQuaternion.h_map" alt="Include dependency graph"></center>
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  34. This graph shows which files directly or indirectly include this file:<p><center><img src="PVRTQuaternion_8h__dep__incl.png" border="0" usemap="#PVRTQuaternion.hdep_map" alt="Included by dependency graph"></center>
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  36. <area href="OGLES2Tools_8h.html" shape="rect" coords="15,7,132,34" alt="">
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  39. <p>
    40. 

  40. <a href="PVRTQuaternion_8h-source.html">Go to the source code of this file.</a><table border=0 cellpadding=0 cellspacing=0>
    41. 

  41. <tr><td></td></tr>
    42. 

  42. <tr><td colspan=2><br><h2>Classes</h2></td></tr>
    43. 

  43. <tr><td class="memItemLeft" nowrap align=right valign=top>struct &nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a></td></tr>
    44. 

  44. 

  45. <tr><td class="memItemLeft" nowrap align=right valign=top>struct &nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="structPVRTQUATERNIONx.html">PVRTQUATERNIONx</a></td></tr>
    46. 

  46. 

  47. <tr><td colspan=2><br><h2>Defines</h2></td></tr>
    48. 

  48. <tr><td class="memItemLeft" nowrap align=right valign=top>#define&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="PVRTQuaternion_8h.html#a0">PVRTMatrixQuaternionIdentity</a>&nbsp;&nbsp;&nbsp;PVRTMatrixQuaternionIdentityF</td></tr>
    49. 

  49. 

  50. <tr><td class="memItemLeft" nowrap align=right valign=top>#define&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="PVRTQuaternion_8h.html#a1">PVRTMatrixQuaternionRotationAxis</a>&nbsp;&nbsp;&nbsp;PVRTMatrixQuaternionRotationAxisF</td></tr>
    51. 

  51. 

  52. <tr><td class="memItemLeft" nowrap align=right valign=top>#define&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="PVRTQuaternion_8h.html#a2">PVRTMatrixQuaternionToAxisAngle</a>&nbsp;&nbsp;&nbsp;PVRTMatrixQuaternionToAxisAngleF</td></tr>
    53. 

  53. 

  54. <tr><td class="memItemLeft" nowrap align=right valign=top>#define&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="PVRTQuaternion_8h.html#a3">PVRTMatrixQuaternionSlerp</a>&nbsp;&nbsp;&nbsp;PVRTMatrixQuaternionSlerpF</td></tr>
    55. 

  55. 

  56. <tr><td class="memItemLeft" nowrap align=right valign=top>#define&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="PVRTQuaternion_8h.html#a4">PVRTMatrixQuaternionNormalize</a>&nbsp;&nbsp;&nbsp;PVRTMatrixQuaternionNormalizeF</td></tr>
    57. 

  57. 

  58. <tr><td class="memItemLeft" nowrap align=right valign=top>#define&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="PVRTQuaternion_8h.html#a5">PVRTMatrixRotationQuaternion</a>&nbsp;&nbsp;&nbsp;PVRTMatrixRotationQuaternionF</td></tr>
    59. 

  59. 

  60. <tr><td class="memItemLeft" nowrap align=right valign=top>#define&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="PVRTQuaternion_8h.html#a6">PVRTMatrixQuaternionMultiply</a>&nbsp;&nbsp;&nbsp;PVRTMatrixQuaternionMultiplyF</td></tr>
    61. 

  61. 

  62. <tr><td colspan=2><br><h2>Typedefs</h2></td></tr>
    63. 

  63. <tr><td class="memItemLeft" nowrap align=right valign=top>typedef <a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a>&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="PVRTQuaternion_8h.html#a7">PVRTQUATERNION</a></td></tr>
    64. 

  64. 

  65. <tr><td colspan=2><br><h2>Functions</h2></td></tr>
    66. 

  66. <tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="PVRTQuaternion_8h.html#a8">PVRTMatrixQuaternionIdentityF</a> (<a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a> &amp;qOut)</td></tr>
    67. 

  67. 

  68. <tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="PVRTQuaternion_8h.html#a9">PVRTMatrixQuaternionIdentityX</a> (<a class="el" href="structPVRTQUATERNIONx.html">PVRTQUATERNIONx</a> &amp;qOut)</td></tr>
    69. 

  69. 

  70. <tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="PVRTQuaternion_8h.html#a10">PVRTMatrixQuaternionRotationAxisF</a> (<a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a> &amp;qOut, const <a class="el" href="structPVRTVECTOR3f.html">PVRTVECTOR3f</a> &amp;vAxis, const float fAngle)</td></tr>
    71. 

  71. 

  72. <tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="PVRTQuaternion_8h.html#a11">PVRTMatrixQuaternionRotationAxisX</a> (<a class="el" href="structPVRTQUATERNIONx.html">PVRTQUATERNIONx</a> &amp;qOut, const <a class="el" href="structPVRTVECTOR3x.html">PVRTVECTOR3x</a> &amp;vAxis, const int fAngle)</td></tr>
    73. 

  73. 

  74. <tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="PVRTQuaternion_8h.html#a12">PVRTMatrixQuaternionToAxisAngleF</a> (const <a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a> &amp;qIn, <a class="el" href="structPVRTVECTOR3f.html">PVRTVECTOR3f</a> &amp;vAxis, float &amp;fAngle)</td></tr>
    75. 

  75. 

  76. <tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="PVRTQuaternion_8h.html#a13">PVRTMatrixQuaternionToAxisAngleX</a> (const <a class="el" href="structPVRTQUATERNIONx.html">PVRTQUATERNIONx</a> &amp;qIn, <a class="el" href="structPVRTVECTOR3x.html">PVRTVECTOR3x</a> &amp;vAxis, int &amp;fAngle)</td></tr>
    77. 

  77. 

  78. <tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="PVRTQuaternion_8h.html#a14">PVRTMatrixQuaternionSlerpF</a> (<a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a> &amp;qOut, const <a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a> &amp;qA, const <a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a> &amp;qB, const float t)</td></tr>
    79. 

  79. 

  80. <tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="PVRTQuaternion_8h.html#a15">PVRTMatrixQuaternionSlerpX</a> (<a class="el" href="structPVRTQUATERNIONx.html">PVRTQUATERNIONx</a> &amp;qOut, const <a class="el" href="structPVRTQUATERNIONx.html">PVRTQUATERNIONx</a> &amp;qA, const <a class="el" href="structPVRTQUATERNIONx.html">PVRTQUATERNIONx</a> &amp;qB, const int t)</td></tr>
    81. 

  81. 

  82. <tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="PVRTQuaternion_8h.html#a16">PVRTMatrixQuaternionNormalizeF</a> (<a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a> &amp;quat)</td></tr>
    83. 

  83. 

  84. <tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="PVRTQuaternion_8h.html#a17">PVRTMatrixQuaternionNormalizeX</a> (<a class="el" href="structPVRTQUATERNIONx.html">PVRTQUATERNIONx</a> &amp;quat)</td></tr>
    85. 

  85. 

  86. <tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="PVRTQuaternion_8h.html#a18">PVRTMatrixRotationQuaternionF</a> (<a class="el" href="classPVRTMATRIXf.html">PVRTMATRIXf</a> &amp;mOut, const <a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a> &amp;quat)</td></tr>
    87. 

  87. 

  88. <tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="PVRTQuaternion_8h.html#a19">PVRTMatrixRotationQuaternionX</a> (<a class="el" href="classPVRTMATRIXx.html">PVRTMATRIXx</a> &amp;mOut, const <a class="el" href="structPVRTQUATERNIONx.html">PVRTQUATERNIONx</a> &amp;quat)</td></tr>
    89. 

  89. 

  90. <tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="PVRTQuaternion_8h.html#a20">PVRTMatrixQuaternionMultiplyF</a> (<a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a> &amp;qOut, const <a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a> &amp;qA, const <a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a> &amp;qB)</td></tr>
    91. 

  91. 

  92. <tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="PVRTQuaternion_8h.html#a21">PVRTMatrixQuaternionMultiplyX</a> (<a class="el" href="structPVRTQUATERNIONx.html">PVRTQUATERNIONx</a> &amp;qOut, const <a class="el" href="structPVRTQUATERNIONx.html">PVRTQUATERNIONx</a> &amp;qA, const <a class="el" href="structPVRTQUATERNIONx.html">PVRTQUATERNIONx</a> &amp;qB)</td></tr>
    93. 

  93. 

  94. </table>
    95. 

  95. <hr><h2>Define Documentation</h2>
    96. 

  96. <a class="anchor" name="a0" doxytag="PVRTQuaternion.h::PVRTMatrixQuaternionIdentity" ></a><p>
    97. 

  97. <br><br><h3>PVRTMatrixQuaternionIdentity</h3><br><div>
    98. 

  98. <table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
    99. 

  99.   <tr>
    100. 

  100.     <td class="mdRow">
    101. 

  101.       <table cellpadding="0" cellspacing="0" border="0">
    102. 

  102.         <tr>
    103. 

  103.           <td class="md" nowrap valign="top"> #define PVRTMatrixQuaternionIdentity&nbsp;&nbsp;&nbsp;PVRTMatrixQuaternionIdentityF
    104. 

  104.       </table>
    105. 

  105.     </td>
    106. 

  106.   </tr>
    107. 

  107. </table>
    108. 

  108. <table cellspacing=5 cellpadding=0 border=0>
    109. 

  109.   <tr>
    110. 

  110.     <td>
    111. 

  111.       &nbsp;
    112. 

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  114. 

  115. <p>
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  116.     </td>
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  117.   </tr>
    118. 

  118. </table>
    119. 

  119. <a class="anchor" name="a6" doxytag="PVRTQuaternion.h::PVRTMatrixQuaternionMultiply" ></a><p>
    120. 

  120. <br><br><h3>PVRTMatrixQuaternionMultiply</h3><br><div>
    121. 

  121. <table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
    122. 

  122.   <tr>
    123. 

  123.     <td class="mdRow">
    124. 

  124.       <table cellpadding="0" cellspacing="0" border="0">
    125. 

  125.         <tr>
    126. 

  126.           <td class="md" nowrap valign="top"> #define PVRTMatrixQuaternionMultiply&nbsp;&nbsp;&nbsp;PVRTMatrixQuaternionMultiplyF
    127. 

  127.       </table>
    128. 

  128.     </td>
    129. 

  129.   </tr>
    130. 

  130. </table>
    131. 

  131. <table cellspacing=5 cellpadding=0 border=0>
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  134.       &nbsp;
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  138. <p>
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    141. 

  141. </table>
    142. 

  142. <a class="anchor" name="a4" doxytag="PVRTQuaternion.h::PVRTMatrixQuaternionNormalize" ></a><p>
    143. 

  143. <br><br><h3>PVRTMatrixQuaternionNormalize</h3><br><div>
    144. 

  144. <table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
    145. 

  145.   <tr>
    146. 

  146.     <td class="mdRow">
    147. 

  147.       <table cellpadding="0" cellspacing="0" border="0">
    148. 

  148.         <tr>
    149. 

  149.           <td class="md" nowrap valign="top"> #define PVRTMatrixQuaternionNormalize&nbsp;&nbsp;&nbsp;PVRTMatrixQuaternionNormalizeF
    150. 

  150.       </table>
    151. 

  151.     </td>
    152. 

  152.   </tr>
    153. 

  153. </table>
    154. 

  154. <table cellspacing=5 cellpadding=0 border=0>
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  157.       &nbsp;
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  161. <p>
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  163.   </tr>
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  164. </table>
    165. 

  165. <a class="anchor" name="a1" doxytag="PVRTQuaternion.h::PVRTMatrixQuaternionRotationAxis" ></a><p>
    166. 

  166. <br><br><h3>PVRTMatrixQuaternionRotationAxis</h3><br><div>
    167. 

  167. <table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
    168. 

  168.   <tr>
    169. 

  169.     <td class="mdRow">
    170. 

  170.       <table cellpadding="0" cellspacing="0" border="0">
    171. 

  171.         <tr>
    172. 

  172.           <td class="md" nowrap valign="top"> #define PVRTMatrixQuaternionRotationAxis&nbsp;&nbsp;&nbsp;PVRTMatrixQuaternionRotationAxisF
    173. 

  173.       </table>
    174. 

  174.     </td>
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  175.   </tr>
    176. 

  176. </table>
    177. 

  177. <table cellspacing=5 cellpadding=0 border=0>
    178. 

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  179.     <td>
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  180.       &nbsp;
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  187. </table>
    188. 

  188. <a class="anchor" name="a3" doxytag="PVRTQuaternion.h::PVRTMatrixQuaternionSlerp" ></a><p>
    189. 

  189. <br><br><h3>PVRTMatrixQuaternionSlerp</h3><br><div>
    190. 

  190. <table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
    191. 

  191.   <tr>
    192. 

  192.     <td class="mdRow">
    193. 

  193.       <table cellpadding="0" cellspacing="0" border="0">
    194. 

  194.         <tr>
    195. 

  195.           <td class="md" nowrap valign="top"> #define PVRTMatrixQuaternionSlerp&nbsp;&nbsp;&nbsp;PVRTMatrixQuaternionSlerpF
    196. 

  196.       </table>
    197. 

  197.     </td>
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  198.   </tr>
    199. 

  199. </table>
    200. 

  200. <table cellspacing=5 cellpadding=0 border=0>
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  209.   </tr>
    210. 

  210. </table>
    211. 

  211. <a class="anchor" name="a2" doxytag="PVRTQuaternion.h::PVRTMatrixQuaternionToAxisAngle" ></a><p>
    212. 

  212. <br><br><h3>PVRTMatrixQuaternionToAxisAngle</h3><br><div>
    213. 

  213. <table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
    214. 

  214.   <tr>
    215. 

  215.     <td class="mdRow">
    216. 

  216.       <table cellpadding="0" cellspacing="0" border="0">
    217. 

  217.         <tr>
    218. 

  218.           <td class="md" nowrap valign="top"> #define PVRTMatrixQuaternionToAxisAngle&nbsp;&nbsp;&nbsp;PVRTMatrixQuaternionToAxisAngleF
    219. 

  219.       </table>
    220. 

  220.     </td>
    221. 

  221.   </tr>
    222. 

  222. </table>
    223. 

  223. <table cellspacing=5 cellpadding=0 border=0>
    224. 

  224.   <tr>
    225. 

  225.     <td>
    226. 

  226.       &nbsp;
    227. 

  227.     </td>
    228. 

  228.     <td>
    229. 

  229. 

  230. <p>
    231. 

  231.     </td>
    232. 

  232.   </tr>
    233. 

  233. </table>
    234. 

  234. <a class="anchor" name="a5" doxytag="PVRTQuaternion.h::PVRTMatrixRotationQuaternion" ></a><p>
    235. 

  235. <br><br><h3>PVRTMatrixRotationQuaternion</h3><br><div>
    236. 

  236. <table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
    237. 

  237.   <tr>
    238. 

  238.     <td class="mdRow">
    239. 

  239.       <table cellpadding="0" cellspacing="0" border="0">
    240. 

  240.         <tr>
    241. 

  241.           <td class="md" nowrap valign="top"> #define PVRTMatrixRotationQuaternion&nbsp;&nbsp;&nbsp;PVRTMatrixRotationQuaternionF
    242. 

  242.       </table>
    243. 

  243.     </td>
    244. 

  244.   </tr>
    245. 

  245. </table>
    246. 

  246. <table cellspacing=5 cellpadding=0 border=0>
    247. 

  247.   <tr>
    248. 

  248.     <td>
    249. 

  249.       &nbsp;
    250. 

  250.     </td>
    251. 

  251.     <td>
    252. 

  252. 

  253. <p>
    254. 

  254.     </td>
    255. 

  255.   </tr>
    256. 

  256. </table>
    257. 

  257. <hr><h2>Typedef Documentation</h2>
    258. 

  258. <a class="anchor" name="a7" doxytag="PVRTQuaternion.h::PVRTQUATERNION" ></a><p>
    259. 

  259. <br><br><h3>PVRTQUATERNION</h3><br><div>
    260. 

  260. <table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
    261. 

  261.   <tr>
    262. 

  262.     <td class="mdRow">
    263. 

  263.       <table cellpadding="0" cellspacing="0" border="0">
    264. 

  264.         <tr>
    265. 

  265.           <td class="md" nowrap valign="top"> typedef <a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a> <a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNION</a>
    266. 

  266.       </table>
    267. 

  267.     </td>
    268. 

  268.   </tr>
    269. 

  269. </table>
    270. 

  270. <table cellspacing=5 cellpadding=0 border=0>
    271. 

  271.   <tr>
    272. 

  272.     <td>
    273. 

  273.       &nbsp;
    274. 

  274.     </td>
    275. 

  275.     <td>
    276. 

  276. 

  277. <p>
    278. 

  278.     </td>
    279. 

  279.   </tr>
    280. 

  280. </table>
    281. 

  281. <hr><h2>Function Documentation</h2>
    282. 

  282. <a class="anchor" name="a8" doxytag="PVRTQuaternion.h::PVRTMatrixQuaternionIdentityF" ></a><p>
    283. 

  283. <br><br><h3>PVRTMatrixQuaternionIdentityF</h3><br><div>
    284. 

  284. <table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
    285. 

  285.   <tr>
    286. 

  286.     <td class="mdRow">
    287. 

  287.       <table cellpadding="0" cellspacing="0" border="0">
    288. 

  288.         <tr>
    289. 

  289.           <td class="md" nowrap valign="top"> void PVRTMatrixQuaternionIdentityF </td>
    290. 

  290.           <td class="md" valign="top">(&nbsp;</td>
    291. 

  291.           <td class="md" nowrap valign="top"><a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a> &amp;&nbsp;</td>
    292. 

  292.           <td class="mdname1" valign="top" nowrap> <em>qOut</em>          </td>
    293. 

  293.           <td class="md" valign="top">&nbsp;)&nbsp;</td>
    294. 

  294.           <td class="md" nowrap></td>
    295. 

  295.         </tr>
    296. 

  296. 

  297.       </table>
    298. 

  298.     </td>
    299. 

  299.   </tr>
    300. 

  300. </table>
    301. 

  301. <table cellspacing=5 cellpadding=0 border=0>
    302. 

  302.   <tr>
    303. 

  303.     <td>
    304. 

  304.       &nbsp;
    305. 

  305.     </td>
    306. 

  306.     <td>
    307. 

  307. 

  308. <p>
    309. 

  309. <dl compact><dt><b>Outputs:</b></dt><dd>
    310. 

  310.   <table border="0" cellspacing="2" cellpadding="0">
    311. 

  311.     <tr><td valign=top><em>qOut</em>&nbsp;</td><td>Identity quaternion </td></tr>
    312. 

  312.   </table>
    313. 

  313. </dl>
    314. 

  314. <dl compact><dt><b>Description:</b></dt><dd>Sets the quaternion to (0, 0, 0, 1), the identity quaternion. </dd></dl>
    315. 

  315.     </td>
    316. 

  316.   </tr>
    317. 

  317. </table>
    318. 

  318. <a class="anchor" name="a9" doxytag="PVRTQuaternion.h::PVRTMatrixQuaternionIdentityX" ></a><p>
    319. 

  319. <br><br><h3>PVRTMatrixQuaternionIdentityX</h3><br><div>
    320. 

  320. <table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
    321. 

  321.   <tr>
    322. 

  322.     <td class="mdRow">
    323. 

  323.       <table cellpadding="0" cellspacing="0" border="0">
    324. 

  324.         <tr>
    325. 

  325.           <td class="md" nowrap valign="top"> void PVRTMatrixQuaternionIdentityX </td>
    326. 

  326.           <td class="md" valign="top">(&nbsp;</td>
    327. 

  327.           <td class="md" nowrap valign="top"><a class="el" href="structPVRTQUATERNIONx.html">PVRTQUATERNIONx</a> &amp;&nbsp;</td>
    328. 

  328.           <td class="mdname1" valign="top" nowrap> <em>qOut</em>          </td>
    329. 

  329.           <td class="md" valign="top">&nbsp;)&nbsp;</td>
    330. 

  330.           <td class="md" nowrap></td>
    331. 

  331.         </tr>
    332. 

  332. 

  333.       </table>
    334. 

  334.     </td>
    335. 

  335.   </tr>
    336. 

  336. </table>
    337. 

  337. <table cellspacing=5 cellpadding=0 border=0>
    338. 

  338.   <tr>
    339. 

  339.     <td>
    340. 

  340.       &nbsp;
    341. 

  341.     </td>
    342. 

  342.     <td>
    343. 

  343. 

  344. <p>
    345. 

  345. <dl compact><dt><b>Outputs:</b></dt><dd>
    346. 

  346.   <table border="0" cellspacing="2" cellpadding="0">
    347. 

  347.     <tr><td valign=top><em>qOut</em>&nbsp;</td><td>Identity quaternion </td></tr>
    348. 

  348.   </table>
    349. 

  349. </dl>
    350. 

  350. <dl compact><dt><b>Description:</b></dt><dd>Sets the quaternion to (0, 0, 0, 1), the identity quaternion. </dd></dl>
    351. 

  351.     </td>
    352. 

  352.   </tr>
    353. 

  353. </table>
    354. 

  354. <a class="anchor" name="a20" doxytag="PVRTQuaternion.h::PVRTMatrixQuaternionMultiplyF" ></a><p>
    355. 

  355. <br><br><h3>PVRTMatrixQuaternionMultiplyF</h3><br><div>
    356. 

  356. <table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
    357. 

  357.   <tr>
    358. 

  358.     <td class="mdRow">
    359. 

  359.       <table cellpadding="0" cellspacing="0" border="0">
    360. 

  360.         <tr>
    361. 

  361.           <td class="md" nowrap valign="top"> void PVRTMatrixQuaternionMultiplyF </td>
    362. 

  362.           <td class="md" valign="top">(&nbsp;</td>
    363. 

  363.           <td class="md" nowrap valign="top"><a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a> &amp;&nbsp;</td>
    364. 

  364.           <td class="mdname" nowrap> <em>qOut</em>, </td>
    365. 

  365.         </tr>
    366. 

  366.         <tr>
    367. 

  367.           <td class="md" nowrap align="right"></td>
    368. 

  368.           <td></td>
    369. 

  369.           <td class="md" nowrap>const <a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a> &amp;&nbsp;</td>
    370. 

  370.           <td class="mdname" nowrap> <em>qA</em>, </td>
    371. 

  371.         </tr>
    372. 

  372.         <tr>
    373. 

  373.           <td class="md" nowrap align="right"></td>
    374. 

  374.           <td></td>
    375. 

  375.           <td class="md" nowrap>const <a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a> &amp;&nbsp;</td>
    376. 

  376.           <td class="mdname" nowrap> <em>qB</em></td>
    377. 

  377.         </tr>
    378. 

  378.         <tr>
    379. 

  379.           <td></td>
    380. 

  380.           <td class="md">)&nbsp;</td>
    381. 

  381.           <td class="md" colspan="2"></td>
    382. 

  382.         </tr>
    383. 

  383. 

  384.       </table>
    385. 

  385.     </td>
    386. 

  386.   </tr>
    387. 

  387. </table>
    388. 

  388. <table cellspacing=5 cellpadding=0 border=0>
    389. 

  389.   <tr>
    390. 

  390.     <td>
    391. 

  391.       &nbsp;
    392. 

  392.     </td>
    393. 

  393.     <td>
    394. 

  394. 

  395. <p>
    396. 

  396. <dl compact><dt><b>Outputs:</b></dt><dd>
    397. 

  397.   <table border="0" cellspacing="2" cellpadding="0">
    398. 

  398.     <tr><td valign=top><em>qOut</em>&nbsp;</td><td>Resulting quaternion </td></tr>
    399. 

  399.   </table>
    400. 

  400. </dl>
    401. 

  401. <dl compact><dt><b>Inputs:</b></dt><dd>
    402. 

  402.   <table border="0" cellspacing="2" cellpadding="0">
    403. 

  403.     <tr><td valign=top><em>qA</em>&nbsp;</td><td>First quaternion to multiply </td></tr>
    404. 

  404.     <tr><td valign=top><em>qB</em>&nbsp;</td><td>Second quaternion to multiply </td></tr>
    405. 

  405.   </table>
    406. 

  406. </dl>
    407. 

  407. <dl compact><dt><b>Description:</b></dt><dd>Multiply quaternion A with quaternion B and return the result in qOut. </dd></dl>
    408. 

  408.     </td>
    409. 

  409.   </tr>
    410. 

  410. </table>
    411. 

  411. <a class="anchor" name="a21" doxytag="PVRTQuaternion.h::PVRTMatrixQuaternionMultiplyX" ></a><p>
    412. 

  412. <br><br><h3>PVRTMatrixQuaternionMultiplyX</h3><br><div>
    413. 

  413. <table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
    414. 

  414.   <tr>
    415. 

  415.     <td class="mdRow">
    416. 

  416.       <table cellpadding="0" cellspacing="0" border="0">
    417. 

  417.         <tr>
    418. 

  418.           <td class="md" nowrap valign="top"> void PVRTMatrixQuaternionMultiplyX </td>
    419. 

  419.           <td class="md" valign="top">(&nbsp;</td>
    420. 

  420.           <td class="md" nowrap valign="top"><a class="el" href="structPVRTQUATERNIONx.html">PVRTQUATERNIONx</a> &amp;&nbsp;</td>
    421. 

  421.           <td class="mdname" nowrap> <em>qOut</em>, </td>
    422. 

  422.         </tr>
    423. 

  423.         <tr>
    424. 

  424.           <td class="md" nowrap align="right"></td>
    425. 

  425.           <td></td>
    426. 

  426.           <td class="md" nowrap>const <a class="el" href="structPVRTQUATERNIONx.html">PVRTQUATERNIONx</a> &amp;&nbsp;</td>
    427. 

  427.           <td class="mdname" nowrap> <em>qA</em>, </td>
    428. 

  428.         </tr>
    429. 

  429.         <tr>
    430. 

  430.           <td class="md" nowrap align="right"></td>
    431. 

  431.           <td></td>
    432. 

  432.           <td class="md" nowrap>const <a class="el" href="structPVRTQUATERNIONx.html">PVRTQUATERNIONx</a> &amp;&nbsp;</td>
    433. 

  433.           <td class="mdname" nowrap> <em>qB</em></td>
    434. 

  434.         </tr>
    435. 

  435.         <tr>
    436. 

  436.           <td></td>
    437. 

  437.           <td class="md">)&nbsp;</td>
    438. 

  438.           <td class="md" colspan="2"></td>
    439. 

  439.         </tr>
    440. 

  440. 

  441.       </table>
    442. 

  442.     </td>
    443. 

  443.   </tr>
    444. 

  444. </table>
    445. 

  445. <table cellspacing=5 cellpadding=0 border=0>
    446. 

  446.   <tr>
    447. 

  447.     <td>
    448. 

  448.       &nbsp;
    449. 

  449.     </td>
    450. 

  450.     <td>
    451. 

  451. 

  452. <p>
    453. 

  453. <dl compact><dt><b>Outputs:</b></dt><dd>
    454. 

  454.   <table border="0" cellspacing="2" cellpadding="0">
    455. 

  455.     <tr><td valign=top><em>qOut</em>&nbsp;</td><td>Resulting quaternion </td></tr>
    456. 

  456.   </table>
    457. 

  457. </dl>
    458. 

  458. <dl compact><dt><b>Inputs:</b></dt><dd>
    459. 

  459.   <table border="0" cellspacing="2" cellpadding="0">
    460. 

  460.     <tr><td valign=top><em>qA</em>&nbsp;</td><td>First quaternion to multiply </td></tr>
    461. 

  461.     <tr><td valign=top><em>qB</em>&nbsp;</td><td>Second quaternion to multiply </td></tr>
    462. 

  462.   </table>
    463. 

  463. </dl>
    464. 

  464. <dl compact><dt><b>Description:</b></dt><dd>Multiply quaternion A with quaternion B and return the result in qOut. Input quaternions must be normalized. </dd></dl>
    465. 

  465.     </td>
    466. 

  466.   </tr>
    467. 

  467. </table>
    468. 

  468. <a class="anchor" name="a16" doxytag="PVRTQuaternion.h::PVRTMatrixQuaternionNormalizeF" ></a><p>
    469. 

  469. <br><br><h3>PVRTMatrixQuaternionNormalizeF</h3><br><div>
    470. 

  470. <table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
    471. 

  471.   <tr>
    472. 

  472.     <td class="mdRow">
    473. 

  473.       <table cellpadding="0" cellspacing="0" border="0">
    474. 

  474.         <tr>
    475. 

  475.           <td class="md" nowrap valign="top"> void PVRTMatrixQuaternionNormalizeF </td>
    476. 

  476.           <td class="md" valign="top">(&nbsp;</td>
    477. 

  477.           <td class="md" nowrap valign="top"><a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a> &amp;&nbsp;</td>
    478. 

  478.           <td class="mdname1" valign="top" nowrap> <em>quat</em>          </td>
    479. 

  479.           <td class="md" valign="top">&nbsp;)&nbsp;</td>
    480. 

  480.           <td class="md" nowrap></td>
    481. 

  481.         </tr>
    482. 

  482. 

  483.       </table>
    484. 

  484.     </td>
    485. 

  485.   </tr>
    486. 

  486. </table>
    487. 

  487. <table cellspacing=5 cellpadding=0 border=0>
    488. 

  488.   <tr>
    489. 

  489.     <td>
    490. 

  490.       &nbsp;
    491. 

  491.     </td>
    492. 

  492.     <td>
    493. 

  493. 

  494. <p>
    495. 

  495. <dl compact><dt><b>Modified:</b></dt><dd>
    496. 

  496.   <table border="0" cellspacing="2" cellpadding="0">
    497. 

  497.     <tr><td valign=top><em>quat</em>&nbsp;</td><td>Vector to normalize </td></tr>
    498. 

  498.   </table>
    499. 

  499. </dl>
    500. 

  500. <dl compact><dt><b>Description:</b></dt><dd>Normalize quaternion. </dd></dl>
    501. 

  501.     </td>
    502. 

  502.   </tr>
    503. 

  503. </table>
    504. 

  504. <a class="anchor" name="a17" doxytag="PVRTQuaternion.h::PVRTMatrixQuaternionNormalizeX" ></a><p>
    505. 

  505. <br><br><h3>PVRTMatrixQuaternionNormalizeX</h3><br><div>
    506. 

  506. <table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
    507. 

  507.   <tr>
    508. 

  508.     <td class="mdRow">
    509. 

  509.       <table cellpadding="0" cellspacing="0" border="0">
    510. 

  510.         <tr>
    511. 

  511.           <td class="md" nowrap valign="top"> void PVRTMatrixQuaternionNormalizeX </td>
    512. 

  512.           <td class="md" valign="top">(&nbsp;</td>
    513. 

  513.           <td class="md" nowrap valign="top"><a class="el" href="structPVRTQUATERNIONx.html">PVRTQUATERNIONx</a> &amp;&nbsp;</td>
    514. 

  514.           <td class="mdname1" valign="top" nowrap> <em>quat</em>          </td>
    515. 

  515.           <td class="md" valign="top">&nbsp;)&nbsp;</td>
    516. 

  516.           <td class="md" nowrap></td>
    517. 

  517.         </tr>
    518. 

  518. 

  519.       </table>
    520. 

  520.     </td>
    521. 

  521.   </tr>
    522. 

  522. </table>
    523. 

  523. <table cellspacing=5 cellpadding=0 border=0>
    524. 

  524.   <tr>
    525. 

  525.     <td>
    526. 

  526.       &nbsp;
    527. 

  527.     </td>
    528. 

  528.     <td>
    529. 

  529. 

  530. <p>
    531. 

  531. <dl compact><dt><b>Modified:</b></dt><dd>
    532. 

  532.   <table border="0" cellspacing="2" cellpadding="0">
    533. 

  533.     <tr><td valign=top><em>quat</em>&nbsp;</td><td>Vector to normalize </td></tr>
    534. 

  534.   </table>
    535. 

  535. </dl>
    536. 

  536. <dl compact><dt><b>Description:</b></dt><dd>Normalize quaternion. Original quaternion is scaled down prior to be normalized in order to avoid overflow issues. </dd></dl>
    537. 

  537.     </td>
    538. 

  538.   </tr>
    539. 

  539. </table>
    540. 

  540. <a class="anchor" name="a10" doxytag="PVRTQuaternion.h::PVRTMatrixQuaternionRotationAxisF" ></a><p>
    541. 

  541. <br><br><h3>PVRTMatrixQuaternionRotationAxisF</h3><br><div>
    542. 

  542. <table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
    543. 

  543.   <tr>
    544. 

  544.     <td class="mdRow">
    545. 

  545.       <table cellpadding="0" cellspacing="0" border="0">
    546. 

  546.         <tr>
    547. 

  547.           <td class="md" nowrap valign="top"> void PVRTMatrixQuaternionRotationAxisF </td>
    548. 

  548.           <td class="md" valign="top">(&nbsp;</td>
    549. 

  549.           <td class="md" nowrap valign="top"><a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a> &amp;&nbsp;</td>
    550. 

  550.           <td class="mdname" nowrap> <em>qOut</em>, </td>
    551. 

  551.         </tr>
    552. 

  552.         <tr>
    553. 

  553.           <td class="md" nowrap align="right"></td>
    554. 

  554.           <td></td>
    555. 

  555.           <td class="md" nowrap>const <a class="el" href="structPVRTVECTOR3f.html">PVRTVECTOR3f</a> &amp;&nbsp;</td>
    556. 

  556.           <td class="mdname" nowrap> <em>vAxis</em>, </td>
    557. 

  557.         </tr>
    558. 

  558.         <tr>
    559. 

  559.           <td class="md" nowrap align="right"></td>
    560. 

  560.           <td></td>
    561. 

  561.           <td class="md" nowrap>const float&nbsp;</td>
    562. 

  562.           <td class="mdname" nowrap> <em>fAngle</em></td>
    563. 

  563.         </tr>
    564. 

  564.         <tr>
    565. 

  565.           <td></td>
    566. 

  566.           <td class="md">)&nbsp;</td>
    567. 

  567.           <td class="md" colspan="2"></td>
    568. 

  568.         </tr>
    569. 

  569. 

  570.       </table>
    571. 

  571.     </td>
    572. 

  572.   </tr>
    573. 

  573. </table>
    574. 

  574. <table cellspacing=5 cellpadding=0 border=0>
    575. 

  575.   <tr>
    576. 

  576.     <td>
    577. 

  577.       &nbsp;
    578. 

  578.     </td>
    579. 

  579.     <td>
    580. 

  580. 

  581. <p>
    582. 

  582. <dl compact><dt><b>Outputs:</b></dt><dd>
    583. 

  583.   <table border="0" cellspacing="2" cellpadding="0">
    584. 

  584.     <tr><td valign=top><em>qOut</em>&nbsp;</td><td>Rotation quaternion </td></tr>
    585. 

  585.   </table>
    586. 

  586. </dl>
    587. 

  587. <dl compact><dt><b>Inputs:</b></dt><dd>
    588. 

  588.   <table border="0" cellspacing="2" cellpadding="0">
    589. 

  589.     <tr><td valign=top><em>vAxis</em>&nbsp;</td><td>Axis to rotate around </td></tr>
    590. 

  590.     <tr><td valign=top><em>fAngle</em>&nbsp;</td><td>Angle to rotate </td></tr>
    591. 

  591.   </table>
    592. 

  592. </dl>
    593. 

  593. <dl compact><dt><b>Description:</b></dt><dd>Create quaternion corresponding to a rotation of fAngle radians around submitted vector. </dd></dl>
    594. 

  594.     </td>
    595. 

  595.   </tr>
    596. 

  596. </table>
    597. 

  597. <a class="anchor" name="a11" doxytag="PVRTQuaternion.h::PVRTMatrixQuaternionRotationAxisX" ></a><p>
    598. 

  598. <br><br><h3>PVRTMatrixQuaternionRotationAxisX</h3><br><div>
    599. 

  599. <table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
    600. 

  600.   <tr>
    601. 

  601.     <td class="mdRow">
    602. 

  602.       <table cellpadding="0" cellspacing="0" border="0">
    603. 

  603.         <tr>
    604. 

  604.           <td class="md" nowrap valign="top"> void PVRTMatrixQuaternionRotationAxisX </td>
    605. 

  605.           <td class="md" valign="top">(&nbsp;</td>
    606. 

  606.           <td class="md" nowrap valign="top"><a class="el" href="structPVRTQUATERNIONx.html">PVRTQUATERNIONx</a> &amp;&nbsp;</td>
    607. 

  607.           <td class="mdname" nowrap> <em>qOut</em>, </td>
    608. 

  608.         </tr>
    609. 

  609.         <tr>
    610. 

  610.           <td class="md" nowrap align="right"></td>
    611. 

  611.           <td></td>
    612. 

  612.           <td class="md" nowrap>const <a class="el" href="structPVRTVECTOR3x.html">PVRTVECTOR3x</a> &amp;&nbsp;</td>
    613. 

  613.           <td class="mdname" nowrap> <em>vAxis</em>, </td>
    614. 

  614.         </tr>
    615. 

  615.         <tr>
    616. 

  616.           <td class="md" nowrap align="right"></td>
    617. 

  617.           <td></td>
    618. 

  618.           <td class="md" nowrap>const int&nbsp;</td>
    619. 

  619.           <td class="mdname" nowrap> <em>fAngle</em></td>
    620. 

  620.         </tr>
    621. 

  621.         <tr>
    622. 

  622.           <td></td>
    623. 

  623.           <td class="md">)&nbsp;</td>
    624. 

  624.           <td class="md" colspan="2"></td>
    625. 

  625.         </tr>
    626. 

  626. 

  627.       </table>
    628. 

  628.     </td>
    629. 

  629.   </tr>
    630. 

  630. </table>
    631. 

  631. <table cellspacing=5 cellpadding=0 border=0>
    632. 

  632.   <tr>
    633. 

  633.     <td>
    634. 

  634.       &nbsp;
    635. 

  635.     </td>
    636. 

  636.     <td>
    637. 

  637. 

  638. <p>
    639. 

  639. <dl compact><dt><b>Outputs:</b></dt><dd>
    640. 

  640.   <table border="0" cellspacing="2" cellpadding="0">
    641. 

  641.     <tr><td valign=top><em>qOut</em>&nbsp;</td><td>Rotation quaternion </td></tr>
    642. 

  642.   </table>
    643. 

  643. </dl>
    644. 

  644. <dl compact><dt><b>Inputs:</b></dt><dd>
    645. 

  645.   <table border="0" cellspacing="2" cellpadding="0">
    646. 

  646.     <tr><td valign=top><em>vAxis</em>&nbsp;</td><td>Axis to rotate around </td></tr>
    647. 

  647.     <tr><td valign=top><em>fAngle</em>&nbsp;</td><td>Angle to rotate </td></tr>
    648. 

  648.   </table>
    649. 

  649. </dl>
    650. 

  650. <dl compact><dt><b>Description:</b></dt><dd>Create quaternion corresponding to a rotation of fAngle radians around submitted vector. </dd></dl>
    651. 

  651.     </td>
    652. 

  652.   </tr>
    653. 

  653. </table>
    654. 

  654. <a class="anchor" name="a14" doxytag="PVRTQuaternion.h::PVRTMatrixQuaternionSlerpF" ></a><p>
    655. 

  655. <br><br><h3>PVRTMatrixQuaternionSlerpF</h3><br><div>
    656. 

  656. <table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
    657. 

  657.   <tr>
    658. 

  658.     <td class="mdRow">
    659. 

  659.       <table cellpadding="0" cellspacing="0" border="0">
    660. 

  660.         <tr>
    661. 

  661.           <td class="md" nowrap valign="top"> void PVRTMatrixQuaternionSlerpF </td>
    662. 

  662.           <td class="md" valign="top">(&nbsp;</td>
    663. 

  663.           <td class="md" nowrap valign="top"><a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a> &amp;&nbsp;</td>
    664. 

  664.           <td class="mdname" nowrap> <em>qOut</em>, </td>
    665. 

  665.         </tr>
    666. 

  666.         <tr>
    667. 

  667.           <td class="md" nowrap align="right"></td>
    668. 

  668.           <td></td>
    669. 

  669.           <td class="md" nowrap>const <a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a> &amp;&nbsp;</td>
    670. 

  670.           <td class="mdname" nowrap> <em>qA</em>, </td>
    671. 

  671.         </tr>
    672. 

  672.         <tr>
    673. 

  673.           <td class="md" nowrap align="right"></td>
    674. 

  674.           <td></td>
    675. 

  675.           <td class="md" nowrap>const <a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a> &amp;&nbsp;</td>
    676. 

  676.           <td class="mdname" nowrap> <em>qB</em>, </td>
    677. 

  677.         </tr>
    678. 

  678.         <tr>
    679. 

  679.           <td class="md" nowrap align="right"></td>
    680. 

  680.           <td></td>
    681. 

  681.           <td class="md" nowrap>const float&nbsp;</td>
    682. 

  682.           <td class="mdname" nowrap> <em>t</em></td>
    683. 

  683.         </tr>
    684. 

  684.         <tr>
    685. 

  685.           <td></td>
    686. 

  686.           <td class="md">)&nbsp;</td>
    687. 

  687.           <td class="md" colspan="2"></td>
    688. 

  688.         </tr>
    689. 

  689. 

  690.       </table>
    691. 

  691.     </td>
    692. 

  692.   </tr>
    693. 

  693. </table>
    694. 

  694. <table cellspacing=5 cellpadding=0 border=0>
    695. 

  695.   <tr>
    696. 

  696.     <td>
    697. 

  697.       &nbsp;
    698. 

  698.     </td>
    699. 

  699.     <td>
    700. 

  700. 

  701. <p>
    702. 

  702. <dl compact><dt><b>Outputs:</b></dt><dd>
    703. 

  703.   <table border="0" cellspacing="2" cellpadding="0">
    704. 

  704.     <tr><td valign=top><em>qOut</em>&nbsp;</td><td>Result of the interpolation </td></tr>
    705. 

  705.   </table>
    706. 

  706. </dl>
    707. 

  707. <dl compact><dt><b>Inputs:</b></dt><dd>
    708. 

  708.   <table border="0" cellspacing="2" cellpadding="0">
    709. 

  709.     <tr><td valign=top><em>qA</em>&nbsp;</td><td>First quaternion to interpolate from </td></tr>
    710. 

  710.     <tr><td valign=top><em>qB</em>&nbsp;</td><td>Second quaternion to interpolate from </td></tr>
    711. 

  711.     <tr><td valign=top><em>t</em>&nbsp;</td><td>Coefficient of interpolation </td></tr>
    712. 

  712.   </table>
    713. 

  713. </dl>
    714. 

  714. <dl compact><dt><b>Description:</b></dt><dd>Perform a Spherical Linear intERPolation between quaternion A and quaternion B at time t. t must be between 0.0f and 1.0f </dd></dl>
    715. 

  715.     </td>
    716. 

  716.   </tr>
    717. 

  717. </table>
    718. 

  718. <a class="anchor" name="a15" doxytag="PVRTQuaternion.h::PVRTMatrixQuaternionSlerpX" ></a><p>
    719. 

  719. <br><br><h3>PVRTMatrixQuaternionSlerpX</h3><br><div>
    720. 

  720. <table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
    721. 

  721.   <tr>
    722. 

  722.     <td class="mdRow">
    723. 

  723.       <table cellpadding="0" cellspacing="0" border="0">
    724. 

  724.         <tr>
    725. 

  725.           <td class="md" nowrap valign="top"> void PVRTMatrixQuaternionSlerpX </td>
    726. 

  726.           <td class="md" valign="top">(&nbsp;</td>
    727. 

  727.           <td class="md" nowrap valign="top"><a class="el" href="structPVRTQUATERNIONx.html">PVRTQUATERNIONx</a> &amp;&nbsp;</td>
    728. 

  728.           <td class="mdname" nowrap> <em>qOut</em>, </td>
    729. 

  729.         </tr>
    730. 

  730.         <tr>
    731. 

  731.           <td class="md" nowrap align="right"></td>
    732. 

  732.           <td></td>
    733. 

  733.           <td class="md" nowrap>const <a class="el" href="structPVRTQUATERNIONx.html">PVRTQUATERNIONx</a> &amp;&nbsp;</td>
    734. 

  734.           <td class="mdname" nowrap> <em>qA</em>, </td>
    735. 

  735.         </tr>
    736. 

  736.         <tr>
    737. 

  737.           <td class="md" nowrap align="right"></td>
    738. 

  738.           <td></td>
    739. 

  739.           <td class="md" nowrap>const <a class="el" href="structPVRTQUATERNIONx.html">PVRTQUATERNIONx</a> &amp;&nbsp;</td>
    740. 

  740.           <td class="mdname" nowrap> <em>qB</em>, </td>
    741. 

  741.         </tr>
    742. 

  742.         <tr>
    743. 

  743.           <td class="md" nowrap align="right"></td>
    744. 

  744.           <td></td>
    745. 

  745.           <td class="md" nowrap>const int&nbsp;</td>
    746. 

  746.           <td class="mdname" nowrap> <em>t</em></td>
    747. 

  747.         </tr>
    748. 

  748.         <tr>
    749. 

  749.           <td></td>
    750. 

  750.           <td class="md">)&nbsp;</td>
    751. 

  751.           <td class="md" colspan="2"></td>
    752. 

  752.         </tr>
    753. 

  753. 

  754.       </table>
    755. 

  755.     </td>
    756. 

  756.   </tr>
    757. 

  757. </table>
    758. 

  758. <table cellspacing=5 cellpadding=0 border=0>
    759. 

  759.   <tr>
    760. 

  760.     <td>
    761. 

  761.       &nbsp;
    762. 

  762.     </td>
    763. 

  763.     <td>
    764. 

  764. 

  765. <p>
    766. 

  766. <dl compact><dt><b>Outputs:</b></dt><dd>
    767. 

  767.   <table border="0" cellspacing="2" cellpadding="0">
    768. 

  768.     <tr><td valign=top><em>qOut</em>&nbsp;</td><td>Result of the interpolation </td></tr>
    769. 

  769.   </table>
    770. 

  770. </dl>
    771. 

  771. <dl compact><dt><b>Inputs:</b></dt><dd>
    772. 

  772.   <table border="0" cellspacing="2" cellpadding="0">
    773. 

  773.     <tr><td valign=top><em>qA</em>&nbsp;</td><td>First quaternion to interpolate from </td></tr>
    774. 

  774.     <tr><td valign=top><em>qB</em>&nbsp;</td><td>Second quaternion to interpolate from </td></tr>
    775. 

  775.     <tr><td valign=top><em>t</em>&nbsp;</td><td>Coefficient of interpolation </td></tr>
    776. 

  776.   </table>
    777. 

  777. </dl>
    778. 

  778. <dl compact><dt><b>Description:</b></dt><dd>Perform a Spherical Linear intERPolation between quaternion A and quaternion B at time t. t must be between 0.0f and 1.0f Requires input quaternions to be normalized </dd></dl>
    779. 

  779.     </td>
    780. 

  780.   </tr>
    781. 

  781. </table>
    782. 

  782. <a class="anchor" name="a12" doxytag="PVRTQuaternion.h::PVRTMatrixQuaternionToAxisAngleF" ></a><p>
    783. 

  783. <br><br><h3>PVRTMatrixQuaternionToAxisAngleF</h3><br><div>
    784. 

  784. <table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
    785. 

  785.   <tr>
    786. 

  786.     <td class="mdRow">
    787. 

  787.       <table cellpadding="0" cellspacing="0" border="0">
    788. 

  788.         <tr>
    789. 

  789.           <td class="md" nowrap valign="top"> void PVRTMatrixQuaternionToAxisAngleF </td>
    790. 

  790.           <td class="md" valign="top">(&nbsp;</td>
    791. 

  791.           <td class="md" nowrap valign="top">const <a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a> &amp;&nbsp;</td>
    792. 

  792.           <td class="mdname" nowrap> <em>qIn</em>, </td>
    793. 

  793.         </tr>
    794. 

  794.         <tr>
    795. 

  795.           <td class="md" nowrap align="right"></td>
    796. 

  796.           <td></td>
    797. 

  797.           <td class="md" nowrap><a class="el" href="structPVRTVECTOR3f.html">PVRTVECTOR3f</a> &amp;&nbsp;</td>
    798. 

  798.           <td class="mdname" nowrap> <em>vAxis</em>, </td>
    799. 

  799.         </tr>
    800. 

  800.         <tr>
    801. 

  801.           <td class="md" nowrap align="right"></td>
    802. 

  802.           <td></td>
    803. 

  803.           <td class="md" nowrap>float &amp;&nbsp;</td>
    804. 

  804.           <td class="mdname" nowrap> <em>fAngle</em></td>
    805. 

  805.         </tr>
    806. 

  806.         <tr>
    807. 

  807.           <td></td>
    808. 

  808.           <td class="md">)&nbsp;</td>
    809. 

  809.           <td class="md" colspan="2"></td>
    810. 

  810.         </tr>
    811. 

  811. 

  812.       </table>
    813. 

  813.     </td>
    814. 

  814.   </tr>
    815. 

  815. </table>
    816. 

  816. <table cellspacing=5 cellpadding=0 border=0>
    817. 

  817.   <tr>
    818. 

  818.     <td>
    819. 

  819.       &nbsp;
    820. 

  820.     </td>
    821. 

  821.     <td>
    822. 

  822. 

  823. <p>
    824. 

  824. <dl compact><dt><b>Inputs:</b></dt><dd>
    825. 

  825.   <table border="0" cellspacing="2" cellpadding="0">
    826. 

  826.     <tr><td valign=top><em>qIn</em>&nbsp;</td><td>Quaternion to transform </td></tr>
    827. 

  827.   </table>
    828. 

  828. </dl>
    829. 

  829. <dl compact><dt><b>Outputs:</b></dt><dd>
    830. 

  830.   <table border="0" cellspacing="2" cellpadding="0">
    831. 

  831.     <tr><td valign=top><em>vAxis</em>&nbsp;</td><td>Axis of rotation </td></tr>
    832. 

  832.     <tr><td valign=top><em>fAngle</em>&nbsp;</td><td>Angle of rotation </td></tr>
    833. 

  833.   </table>
    834. 

  834. </dl>
    835. 

  835. <dl compact><dt><b>Description:</b></dt><dd>Convert a quaternion to an axis and angle. Expects a unit quaternion. </dd></dl>
    836. 

  836.     </td>
    837. 

  837.   </tr>
    838. 

  838. </table>
    839. 

  839. <a class="anchor" name="a13" doxytag="PVRTQuaternion.h::PVRTMatrixQuaternionToAxisAngleX" ></a><p>
    840. 

  840. <br><br><h3>PVRTMatrixQuaternionToAxisAngleX</h3><br><div>
    841. 

  841. <table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
    842. 

  842.   <tr>
    843. 

  843.     <td class="mdRow">
    844. 

  844.       <table cellpadding="0" cellspacing="0" border="0">
    845. 

  845.         <tr>
    846. 

  846.           <td class="md" nowrap valign="top"> void PVRTMatrixQuaternionToAxisAngleX </td>
    847. 

  847.           <td class="md" valign="top">(&nbsp;</td>
    848. 

  848.           <td class="md" nowrap valign="top">const <a class="el" href="structPVRTQUATERNIONx.html">PVRTQUATERNIONx</a> &amp;&nbsp;</td>
    849. 

  849.           <td class="mdname" nowrap> <em>qIn</em>, </td>
    850. 

  850.         </tr>
    851. 

  851.         <tr>
    852. 

  852.           <td class="md" nowrap align="right"></td>
    853. 

  853.           <td></td>
    854. 

  854.           <td class="md" nowrap><a class="el" href="structPVRTVECTOR3x.html">PVRTVECTOR3x</a> &amp;&nbsp;</td>
    855. 

  855.           <td class="mdname" nowrap> <em>vAxis</em>, </td>
    856. 

  856.         </tr>
    857. 

  857.         <tr>
    858. 

  858.           <td class="md" nowrap align="right"></td>
    859. 

  859.           <td></td>
    860. 

  860.           <td class="md" nowrap>int &amp;&nbsp;</td>
    861. 

  861.           <td class="mdname" nowrap> <em>fAngle</em></td>
    862. 

  862.         </tr>
    863. 

  863.         <tr>
    864. 

  864.           <td></td>
    865. 

  865.           <td class="md">)&nbsp;</td>
    866. 

  866.           <td class="md" colspan="2"></td>
    867. 

  867.         </tr>
    868. 

  868. 

  869.       </table>
    870. 

  870.     </td>
    871. 

  871.   </tr>
    872. 

  872. </table>
    873. 

  873. <table cellspacing=5 cellpadding=0 border=0>
    874. 

  874.   <tr>
    875. 

  875.     <td>
    876. 

  876.       &nbsp;
    877. 

  877.     </td>
    878. 

  878.     <td>
    879. 

  879. 

  880. <p>
    881. 

  881. <dl compact><dt><b>Inputs:</b></dt><dd>
    882. 

  882.   <table border="0" cellspacing="2" cellpadding="0">
    883. 

  883.     <tr><td valign=top><em>qIn</em>&nbsp;</td><td>Quaternion to transform </td></tr>
    884. 

  884.   </table>
    885. 

  885. </dl>
    886. 

  886. <dl compact><dt><b>Outputs:</b></dt><dd>
    887. 

  887.   <table border="0" cellspacing="2" cellpadding="0">
    888. 

  888.     <tr><td valign=top><em>vAxis</em>&nbsp;</td><td>Axis of rotation </td></tr>
    889. 

  889.     <tr><td valign=top><em>fAngle</em>&nbsp;</td><td>Angle of rotation </td></tr>
    890. 

  890.   </table>
    891. 

  891. </dl>
    892. 

  892. <dl compact><dt><b>Description:</b></dt><dd>Convert a quaternion to an axis and angle. Expects a unit quaternion. </dd></dl>
    893. 

  893.     </td>
    894. 

  894.   </tr>
    895. 

  895. </table>
    896. 

  896. <a class="anchor" name="a18" doxytag="PVRTQuaternion.h::PVRTMatrixRotationQuaternionF" ></a><p>
    897. 

  897. <br><br><h3>PVRTMatrixRotationQuaternionF</h3><br><div>
    898. 

  898. <table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
    899. 

  899.   <tr>
    900. 

  900.     <td class="mdRow">
    901. 

  901.       <table cellpadding="0" cellspacing="0" border="0">
    902. 

  902.         <tr>
    903. 

  903.           <td class="md" nowrap valign="top"> void PVRTMatrixRotationQuaternionF </td>
    904. 

  904.           <td class="md" valign="top">(&nbsp;</td>
    905. 

  905.           <td class="md" nowrap valign="top"><a class="el" href="classPVRTMATRIXf.html">PVRTMATRIXf</a> &amp;&nbsp;</td>
    906. 

  906.           <td class="mdname" nowrap> <em>mOut</em>, </td>
    907. 

  907.         </tr>
    908. 

  908.         <tr>
    909. 

  909.           <td class="md" nowrap align="right"></td>
    910. 

  910.           <td></td>
    911. 

  911.           <td class="md" nowrap>const <a class="el" href="structPVRTQUATERNIONf.html">PVRTQUATERNIONf</a> &amp;&nbsp;</td>
    912. 

  912.           <td class="mdname" nowrap> <em>quat</em></td>
    913. 

  913.         </tr>
    914. 

  914.         <tr>
    915. 

  915.           <td></td>
    916. 

  916.           <td class="md">)&nbsp;</td>
    917. 

  917.           <td class="md" colspan="2"></td>
    918. 

  918.         </tr>
    919. 

  919. 

  920.       </table>
    921. 

  921.     </td>
    922. 

  922.   </tr>
    923. 

  923. </table>
    924. 

  924. <table cellspacing=5 cellpadding=0 border=0>
    925. 

  925.   <tr>
    926. 

  926.     <td>
    927. 

  927.       &nbsp;
    928. 

  928.     </td>
    929. 

  929.     <td>
    930. 

  930. 

  931. <p>
    932. 

  932. <dl compact><dt><b>Outputs:</b></dt><dd>
    933. 

  933.   <table border="0" cellspacing="2" cellpadding="0">
    934. 

  934.     <tr><td valign=top><em>mOut</em>&nbsp;</td><td>Resulting rotation matrix </td></tr>
    935. 

  935.   </table>
    936. 

  936. </dl>
    937. 

  937. <dl compact><dt><b>Inputs:</b></dt><dd>
    938. 

  938.   <table border="0" cellspacing="2" cellpadding="0">
    939. 

  939.     <tr><td valign=top><em>quat</em>&nbsp;</td><td>Quaternion to transform </td></tr>
    940. 

  940.   </table>
    941. 

  941. </dl>
    942. 

  942. <dl compact><dt><b>Description:</b></dt><dd>Create rotation matrix from submitted quaternion. Assuming the quaternion is of the form [X Y Z W]:</dd></dl>
    943. 

  943. | 2 2 | | 1 - 2Y - 2Z 2XY - 2ZW 2XZ + 2YW 0 | | | | 2 2 | M = | 2XY + 2ZW 1 - 2X - 2Z 2YZ - 2XW 0 | | | | 2 2 | | 2XZ - 2YW 2YZ + 2XW 1 - 2X - 2Y 0 | | | | 0 0 0 1 |     </td>
    944. 

  944.   </tr>
    945. 

  945. </table>
    946. 

  946. <a class="anchor" name="a19" doxytag="PVRTQuaternion.h::PVRTMatrixRotationQuaternionX" ></a><p>
    947. 

  947. <br><br><h3>PVRTMatrixRotationQuaternionX</h3><br><div>
    948. 

  948. <table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
    949. 

  949.   <tr>
    950. 

  950.     <td class="mdRow">
    951. 

  951.       <table cellpadding="0" cellspacing="0" border="0">
    952. 

  952.         <tr>
    953. 

  953.           <td class="md" nowrap valign="top"> void PVRTMatrixRotationQuaternionX </td>
    954. 

  954.           <td class="md" valign="top">(&nbsp;</td>
    955. 

  955.           <td class="md" nowrap valign="top"><a class="el" href="classPVRTMATRIXx.html">PVRTMATRIXx</a> &amp;&nbsp;</td>
    956. 

  956.           <td class="mdname" nowrap> <em>mOut</em>, </td>
    957. 

  957.         </tr>
    958. 

  958.         <tr>
    959. 

  959.           <td class="md" nowrap align="right"></td>
    960. 

  960.           <td></td>
    961. 

  961.           <td class="md" nowrap>const <a class="el" href="structPVRTQUATERNIONx.html">PVRTQUATERNIONx</a> &amp;&nbsp;</td>
    962. 

  962.           <td class="mdname" nowrap> <em>quat</em></td>
    963. 

  963.         </tr>
    964. 

  964.         <tr>
    965. 

  965.           <td></td>
    966. 

  966.           <td class="md">)&nbsp;</td>
    967. 

  967.           <td class="md" colspan="2"></td>
    968. 

  968.         </tr>
    969. 

  969. 

  970.       </table>
    971. 

  971.     </td>
    972. 

  972.   </tr>
    973. 

  973. </table>
    974. 

  974. <table cellspacing=5 cellpadding=0 border=0>
    975. 

  975.   <tr>
    976. 

  976.     <td>
    977. 

  977.       &nbsp;
    978. 

  978.     </td>
    979. 

  979.     <td>
    980. 

  980. 

  981. <p>
    982. 

  982. <dl compact><dt><b>Outputs:</b></dt><dd>
    983. 

  983.   <table border="0" cellspacing="2" cellpadding="0">
    984. 

  984.     <tr><td valign=top><em>mOut</em>&nbsp;</td><td>Resulting rotation matrix </td></tr>
    985. 

  985.   </table>
    986. 

  986. </dl>
    987. 

  987. <dl compact><dt><b>Inputs:</b></dt><dd>
    988. 

  988.   <table border="0" cellspacing="2" cellpadding="0">
    989. 

  989.     <tr><td valign=top><em>quat</em>&nbsp;</td><td>Quaternion to transform </td></tr>
    990. 

  990.   </table>
    991. 

  991. </dl>
    992. 

  992. <dl compact><dt><b>Description:</b></dt><dd>Create rotation matrix from submitted quaternion. Assuming the quaternion is of the form [X Y Z W]:</dd></dl>
    993. 

  993. | 2 2 | | 1 - 2Y - 2Z 2XY - 2ZW 2XZ + 2YW 0 | | | | 2 2 | M = | 2XY + 2ZW 1 - 2X - 2Z 2YZ - 2XW 0 | | | | 2 2 | | 2XZ - 2YW 2YZ + 2XW 1 - 2X - 2Y 0 | | | | 0 0 0 1 |     </td>
    994. 

  994.   </tr>
    995. 

  995. </table>
    996. 

  996. <br>
    997. 

  997. <br>
    998. 

  998. <P align=left><FONT size=2><STRONG><A 
    999. 

  999.    href="http://www.imgtec.com/powervr/insider/legal/index.asp">Copyright</A> © 
    1000. 

  1000.    1999-2008, Imagination Technologies Ltd.</STRONG></FONT></P>
    1001. 

  1001. <hr>
    1002. 

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    1003. 

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    1004. 

  1004. </body>
    1005. 

  1005. </html>
    1006. 

  1006.