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  7. <title>0.9.7: GLM_GTX_intersect</title>
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  38. <div class="header">
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  39.   <div class="summary">
    40. 

  40. <a href="#func-members">Functions</a>  </div>
    41. 

  41.   <div class="headertitle">
    42. 

  42. <div class="title">GLM_GTX_intersect<div class="ingroups"><a class="el" href="a00161.html">GTX Extensions (Experimental)</a></div></div>  </div>
    43. 

  43. </div><!--header-->
    44. 

  44. <div class="contents">
    45. 

  45. <table class="memberdecls">
    46. 

  46. <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
    47. 

  47. Functions</h2></td></tr>
    48. 

  48. <tr class="memitem:ga9c68139f3d8a4f3d7fe45f9dbc0de5b7"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    49. 

  49. <tr class="memitem:ga9c68139f3d8a4f3d7fe45f9dbc0de5b7"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL bool&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00204.html#ga9c68139f3d8a4f3d7fe45f9dbc0de5b7">intersectLineSphere</a> (genType const &amp;point0, genType const &amp;point1, genType const &amp;sphereCenter, typename genType::value_type sphereRadius, genType &amp;intersectionPosition1, genType &amp;intersectionNormal1, genType &amp;intersectionPosition2=genType(), genType &amp;intersectionNormal2=genType())</td></tr>
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    51. 

  51. <tr class="memitem:ga9d29b9b3acb504d43986502f42740df4"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    52. 

  52. <tr class="memitem:ga9d29b9b3acb504d43986502f42740df4"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL bool&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00204.html#ga9d29b9b3acb504d43986502f42740df4">intersectLineTriangle</a> (genType const &amp;orig, genType const &amp;dir, genType const &amp;vert0, genType const &amp;vert1, genType const &amp;vert2, genType &amp;position)</td></tr>
    53. 

  53. <tr class="separator:ga9d29b9b3acb504d43986502f42740df4"><td class="memSeparator" colspan="2">&#160;</td></tr>
    54. 

  54. <tr class="memitem:gad3697a9700ea379739a667ea02573488"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    55. 

  55. <tr class="memitem:gad3697a9700ea379739a667ea02573488"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL bool&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00204.html#gad3697a9700ea379739a667ea02573488">intersectRayPlane</a> (genType const &amp;orig, genType const &amp;dir, genType const &amp;planeOrig, genType const &amp;planeNormal, typename genType::value_type &amp;intersectionDistance)</td></tr>
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  56. <tr class="separator:gad3697a9700ea379739a667ea02573488"><td class="memSeparator" colspan="2">&#160;</td></tr>
    57. 

  57. <tr class="memitem:gac88f8cd84c4bcb5b947d56acbbcfa56e"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    58. 

  58. <tr class="memitem:gac88f8cd84c4bcb5b947d56acbbcfa56e"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL bool&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00204.html#gac88f8cd84c4bcb5b947d56acbbcfa56e">intersectRaySphere</a> (genType const &amp;rayStarting, genType const &amp;rayNormalizedDirection, genType const &amp;sphereCenter, typename genType::value_type const sphereRadiusSquered, typename genType::value_type &amp;intersectionDistance)</td></tr>
    59. 

  59. <tr class="separator:gac88f8cd84c4bcb5b947d56acbbcfa56e"><td class="memSeparator" colspan="2">&#160;</td></tr>
    60. 

  60. <tr class="memitem:gad28c00515b823b579c608aafa1100c1d"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    61. 

  61. <tr class="memitem:gad28c00515b823b579c608aafa1100c1d"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL bool&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00204.html#gad28c00515b823b579c608aafa1100c1d">intersectRaySphere</a> (genType const &amp;rayStarting, genType const &amp;rayNormalizedDirection, genType const &amp;sphereCenter, const typename genType::value_type sphereRadius, genType &amp;intersectionPosition, genType &amp;intersectionNormal)</td></tr>
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  62. <tr class="separator:gad28c00515b823b579c608aafa1100c1d"><td class="memSeparator" colspan="2">&#160;</td></tr>
    63. 

  63. <tr class="memitem:gab16c1b47c10451e7604b51b39a7ef21d"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    64. 

  64. <tr class="memitem:gab16c1b47c10451e7604b51b39a7ef21d"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL bool&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00204.html#gab16c1b47c10451e7604b51b39a7ef21d">intersectRayTriangle</a> (genType const &amp;orig, genType const &amp;dir, genType const &amp;vert0, genType const &amp;vert1, genType const &amp;vert2, genType &amp;baryPosition)</td></tr>
    65. 

  65. <tr class="separator:gab16c1b47c10451e7604b51b39a7ef21d"><td class="memSeparator" colspan="2">&#160;</td></tr>
    66. 

  66. </table>
    67. 

  67. <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
    68. 

  68. <p>Add intersection functions. </p>
    69. 

  69. <p>&lt;<a class="el" href="a00047.html" title="OpenGL Mathematics (glm.g-truc.net) ">glm/gtx/intersect.hpp</a>&gt; need to be included to use these functionalities. </p>
    70. 

  70. <h2 class="groupheader">Function Documentation</h2>
    71. 

  71. <a class="anchor" id="ga9c68139f3d8a4f3d7fe45f9dbc0de5b7"></a>
    72. 

  72. <div class="memitem">
    73. 

  73. <div class="memproto">
    74. 

  74.       <table class="memname">
    75. 

  75.         <tr>
    76. 

  76.           <td class="memname">GLM_FUNC_DECL bool glm::intersectLineSphere </td>
    77. 

  77.           <td>(</td>
    78. 

  78.           <td class="paramtype">genType const &amp;&#160;</td>
    79. 

  79.           <td class="paramname"><em>point0</em>, </td>
    80. 

  80.         </tr>
    81. 

  81.         <tr>
    82. 

  82.           <td class="paramkey"></td>
    83. 

  83.           <td></td>
    84. 

  84.           <td class="paramtype">genType const &amp;&#160;</td>
    85. 

  85.           <td class="paramname"><em>point1</em>, </td>
    86. 

  86.         </tr>
    87. 

  87.         <tr>
    88. 

  88.           <td class="paramkey"></td>
    89. 

  89.           <td></td>
    90. 

  90.           <td class="paramtype">genType const &amp;&#160;</td>
    91. 

  91.           <td class="paramname"><em>sphereCenter</em>, </td>
    92. 

  92.         </tr>
    93. 

  93.         <tr>
    94. 

  94.           <td class="paramkey"></td>
    95. 

  95.           <td></td>
    96. 

  96.           <td class="paramtype">typename genType::value_type&#160;</td>
    97. 

  97.           <td class="paramname"><em>sphereRadius</em>, </td>
    98. 

  98.         </tr>
    99. 

  99.         <tr>
    100. 

  100.           <td class="paramkey"></td>
    101. 

  101.           <td></td>
    102. 

  102.           <td class="paramtype">genType &amp;&#160;</td>
    103. 

  103.           <td class="paramname"><em>intersectionPosition1</em>, </td>
    104. 

  104.         </tr>
    105. 

  105.         <tr>
    106. 

  106.           <td class="paramkey"></td>
    107. 

  107.           <td></td>
    108. 

  108.           <td class="paramtype">genType &amp;&#160;</td>
    109. 

  109.           <td class="paramname"><em>intersectionNormal1</em>, </td>
    110. 

  110.         </tr>
    111. 

  111.         <tr>
    112. 

  112.           <td class="paramkey"></td>
    113. 

  113.           <td></td>
    114. 

  114.           <td class="paramtype">genType &amp;&#160;</td>
    115. 

  115.           <td class="paramname"><em>intersectionPosition2</em> = <code>genType()</code>, </td>
    116. 

  116.         </tr>
    117. 

  117.         <tr>
    118. 

  118.           <td class="paramkey"></td>
    119. 

  119.           <td></td>
    120. 

  120.           <td class="paramtype">genType &amp;&#160;</td>
    121. 

  121.           <td class="paramname"><em>intersectionNormal2</em> = <code>genType()</code>&#160;</td>
    122. 

  122.         </tr>
    123. 

  123.         <tr>
    124. 

  124.           <td></td>
    125. 

  125.           <td>)</td>
    126. 

  126.           <td></td><td></td>
    127. 

  127.         </tr>
    128. 

  128.       </table>
    129. 

  129. </div><div class="memdoc">
    130. 

  130. 

  131. <p>Compute the intersection of a line and a sphere. </p>
    132. 

  132. <p>From GLM_GTX_intersect extension </p>
    133. 

  133. 

  134. </div>
    135. 

  135. </div>
    136. 

  136. <a class="anchor" id="ga9d29b9b3acb504d43986502f42740df4"></a>
    137. 

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

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

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

  140.         <tr>
    141. 

  141.           <td class="memname">GLM_FUNC_DECL bool glm::intersectLineTriangle </td>
    142. 

  142.           <td>(</td>
    143. 

  143.           <td class="paramtype">genType const &amp;&#160;</td>
    144. 

  144.           <td class="paramname"><em>orig</em>, </td>
    145. 

  145.         </tr>
    146. 

  146.         <tr>
    147. 

  147.           <td class="paramkey"></td>
    148. 

  148.           <td></td>
    149. 

  149.           <td class="paramtype">genType const &amp;&#160;</td>
    150. 

  150.           <td class="paramname"><em>dir</em>, </td>
    151. 

  151.         </tr>
    152. 

  152.         <tr>
    153. 

  153.           <td class="paramkey"></td>
    154. 

  154.           <td></td>
    155. 

  155.           <td class="paramtype">genType const &amp;&#160;</td>
    156. 

  156.           <td class="paramname"><em>vert0</em>, </td>
    157. 

  157.         </tr>
    158. 

  158.         <tr>
    159. 

  159.           <td class="paramkey"></td>
    160. 

  160.           <td></td>
    161. 

  161.           <td class="paramtype">genType const &amp;&#160;</td>
    162. 

  162.           <td class="paramname"><em>vert1</em>, </td>
    163. 

  163.         </tr>
    164. 

  164.         <tr>
    165. 

  165.           <td class="paramkey"></td>
    166. 

  166.           <td></td>
    167. 

  167.           <td class="paramtype">genType const &amp;&#160;</td>
    168. 

  168.           <td class="paramname"><em>vert2</em>, </td>
    169. 

  169.         </tr>
    170. 

  170.         <tr>
    171. 

  171.           <td class="paramkey"></td>
    172. 

  172.           <td></td>
    173. 

  173.           <td class="paramtype">genType &amp;&#160;</td>
    174. 

  174.           <td class="paramname"><em>position</em>&#160;</td>
    175. 

  175.         </tr>
    176. 

  176.         <tr>
    177. 

  177.           <td></td>
    178. 

  178.           <td>)</td>
    179. 

  179.           <td></td><td></td>
    180. 

  180.         </tr>
    181. 

  181.       </table>
    182. 

  182. </div><div class="memdoc">
    183. 

  183. 

  184. <p>Compute the intersection of a line and a triangle. </p>
    185. 

  185. <p>From GLM_GTX_intersect extension. </p>
    186. 

  186. 

  187. </div>
    188. 

  188. </div>
    189. 

  189. <a class="anchor" id="gad3697a9700ea379739a667ea02573488"></a>
    190. 

  190. <div class="memitem">
    191. 

  191. <div class="memproto">
    192. 

  192.       <table class="memname">
    193. 

  193.         <tr>
    194. 

  194.           <td class="memname">GLM_FUNC_DECL bool glm::intersectRayPlane </td>
    195. 

  195.           <td>(</td>
    196. 

  196.           <td class="paramtype">genType const &amp;&#160;</td>
    197. 

  197.           <td class="paramname"><em>orig</em>, </td>
    198. 

  198.         </tr>
    199. 

  199.         <tr>
    200. 

  200.           <td class="paramkey"></td>
    201. 

  201.           <td></td>
    202. 

  202.           <td class="paramtype">genType const &amp;&#160;</td>
    203. 

  203.           <td class="paramname"><em>dir</em>, </td>
    204. 

  204.         </tr>
    205. 

  205.         <tr>
    206. 

  206.           <td class="paramkey"></td>
    207. 

  207.           <td></td>
    208. 

  208.           <td class="paramtype">genType const &amp;&#160;</td>
    209. 

  209.           <td class="paramname"><em>planeOrig</em>, </td>
    210. 

  210.         </tr>
    211. 

  211.         <tr>
    212. 

  212.           <td class="paramkey"></td>
    213. 

  213.           <td></td>
    214. 

  214.           <td class="paramtype">genType const &amp;&#160;</td>
    215. 

  215.           <td class="paramname"><em>planeNormal</em>, </td>
    216. 

  216.         </tr>
    217. 

  217.         <tr>
    218. 

  218.           <td class="paramkey"></td>
    219. 

  219.           <td></td>
    220. 

  220.           <td class="paramtype">typename genType::value_type &amp;&#160;</td>
    221. 

  221.           <td class="paramname"><em>intersectionDistance</em>&#160;</td>
    222. 

  222.         </tr>
    223. 

  223.         <tr>
    224. 

  224.           <td></td>
    225. 

  225.           <td>)</td>
    226. 

  226.           <td></td><td></td>
    227. 

  227.         </tr>
    228. 

  228.       </table>
    229. 

  229. </div><div class="memdoc">
    230. 

  230. 

  231. <p>Compute the intersection of a ray and a plane. </p>
    232. 

  232. <p>Ray direction and plane normal must be unit length. From GLM_GTX_intersect extension. </p>
    233. 

  233. 

  234. </div>
    235. 

  235. </div>
    236. 

  236. <a class="anchor" id="gac88f8cd84c4bcb5b947d56acbbcfa56e"></a>
    237. 

  237. <div class="memitem">
    238. 

  238. <div class="memproto">
    239. 

  239.       <table class="memname">
    240. 

  240.         <tr>
    241. 

  241.           <td class="memname">GLM_FUNC_DECL bool glm::intersectRaySphere </td>
    242. 

  242.           <td>(</td>
    243. 

  243.           <td class="paramtype">genType const &amp;&#160;</td>
    244. 

  244.           <td class="paramname"><em>rayStarting</em>, </td>
    245. 

  245.         </tr>
    246. 

  246.         <tr>
    247. 

  247.           <td class="paramkey"></td>
    248. 

  248.           <td></td>
    249. 

  249.           <td class="paramtype">genType const &amp;&#160;</td>
    250. 

  250.           <td class="paramname"><em>rayNormalizedDirection</em>, </td>
    251. 

  251.         </tr>
    252. 

  252.         <tr>
    253. 

  253.           <td class="paramkey"></td>
    254. 

  254.           <td></td>
    255. 

  255.           <td class="paramtype">genType const &amp;&#160;</td>
    256. 

  256.           <td class="paramname"><em>sphereCenter</em>, </td>
    257. 

  257.         </tr>
    258. 

  258.         <tr>
    259. 

  259.           <td class="paramkey"></td>
    260. 

  260.           <td></td>
    261. 

  261.           <td class="paramtype">typename genType::value_type const&#160;</td>
    262. 

  262.           <td class="paramname"><em>sphereRadiusSquered</em>, </td>
    263. 

  263.         </tr>
    264. 

  264.         <tr>
    265. 

  265.           <td class="paramkey"></td>
    266. 

  266.           <td></td>
    267. 

  267.           <td class="paramtype">typename genType::value_type &amp;&#160;</td>
    268. 

  268.           <td class="paramname"><em>intersectionDistance</em>&#160;</td>
    269. 

  269.         </tr>
    270. 

  270.         <tr>
    271. 

  271.           <td></td>
    272. 

  272.           <td>)</td>
    273. 

  273.           <td></td><td></td>
    274. 

  274.         </tr>
    275. 

  275.       </table>
    276. 

  276. </div><div class="memdoc">
    277. 

  277. 

  278. <p>Compute the intersection distance of a ray and a sphere. </p>
    279. 

  279. <p>The ray direction vector is unit length. From GLM_GTX_intersect extension. </p>
    280. 

  280. 

  281. </div>
    282. 

  282. </div>
    283. 

  283. <a class="anchor" id="gad28c00515b823b579c608aafa1100c1d"></a>
    284. 

  284. <div class="memitem">
    285. 

  285. <div class="memproto">
    286. 

  286.       <table class="memname">
    287. 

  287.         <tr>
    288. 

  288.           <td class="memname">GLM_FUNC_DECL bool glm::intersectRaySphere </td>
    289. 

  289.           <td>(</td>
    290. 

  290.           <td class="paramtype">genType const &amp;&#160;</td>
    291. 

  291.           <td class="paramname"><em>rayStarting</em>, </td>
    292. 

  292.         </tr>
    293. 

  293.         <tr>
    294. 

  294.           <td class="paramkey"></td>
    295. 

  295.           <td></td>
    296. 

  296.           <td class="paramtype">genType const &amp;&#160;</td>
    297. 

  297.           <td class="paramname"><em>rayNormalizedDirection</em>, </td>
    298. 

  298.         </tr>
    299. 

  299.         <tr>
    300. 

  300.           <td class="paramkey"></td>
    301. 

  301.           <td></td>
    302. 

  302.           <td class="paramtype">genType const &amp;&#160;</td>
    303. 

  303.           <td class="paramname"><em>sphereCenter</em>, </td>
    304. 

  304.         </tr>
    305. 

  305.         <tr>
    306. 

  306.           <td class="paramkey"></td>
    307. 

  307.           <td></td>
    308. 

  308.           <td class="paramtype">const typename genType::value_type&#160;</td>
    309. 

  309.           <td class="paramname"><em>sphereRadius</em>, </td>
    310. 

  310.         </tr>
    311. 

  311.         <tr>
    312. 

  312.           <td class="paramkey"></td>
    313. 

  313.           <td></td>
    314. 

  314.           <td class="paramtype">genType &amp;&#160;</td>
    315. 

  315.           <td class="paramname"><em>intersectionPosition</em>, </td>
    316. 

  316.         </tr>
    317. 

  317.         <tr>
    318. 

  318.           <td class="paramkey"></td>
    319. 

  319.           <td></td>
    320. 

  320.           <td class="paramtype">genType &amp;&#160;</td>
    321. 

  321.           <td class="paramname"><em>intersectionNormal</em>&#160;</td>
    322. 

  322.         </tr>
    323. 

  323.         <tr>
    324. 

  324.           <td></td>
    325. 

  325.           <td>)</td>
    326. 

  326.           <td></td><td></td>
    327. 

  327.         </tr>
    328. 

  328.       </table>
    329. 

  329. </div><div class="memdoc">
    330. 

  330. 

  331. <p>Compute the intersection of a ray and a sphere. </p>
    332. 

  332. <p>From GLM_GTX_intersect extension. </p>
    333. 

  333. 

  334. </div>
    335. 

  335. </div>
    336. 

  336. <a class="anchor" id="gab16c1b47c10451e7604b51b39a7ef21d"></a>
    337. 

  337. <div class="memitem">
    338. 

  338. <div class="memproto">
    339. 

  339.       <table class="memname">
    340. 

  340.         <tr>
    341. 

  341.           <td class="memname">GLM_FUNC_DECL bool glm::intersectRayTriangle </td>
    342. 

  342.           <td>(</td>
    343. 

  343.           <td class="paramtype">genType const &amp;&#160;</td>
    344. 

  344.           <td class="paramname"><em>orig</em>, </td>
    345. 

  345.         </tr>
    346. 

  346.         <tr>
    347. 

  347.           <td class="paramkey"></td>
    348. 

  348.           <td></td>
    349. 

  349.           <td class="paramtype">genType const &amp;&#160;</td>
    350. 

  350.           <td class="paramname"><em>dir</em>, </td>
    351. 

  351.         </tr>
    352. 

  352.         <tr>
    353. 

  353.           <td class="paramkey"></td>
    354. 

  354.           <td></td>
    355. 

  355.           <td class="paramtype">genType const &amp;&#160;</td>
    356. 

  356.           <td class="paramname"><em>vert0</em>, </td>
    357. 

  357.         </tr>
    358. 

  358.         <tr>
    359. 

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

  360.           <td></td>
    361. 

  361.           <td class="paramtype">genType const &amp;&#160;</td>
    362. 

  362.           <td class="paramname"><em>vert1</em>, </td>
    363. 

  363.         </tr>
    364. 

  364.         <tr>
    365. 

  365.           <td class="paramkey"></td>
    366. 

  366.           <td></td>
    367. 

  367.           <td class="paramtype">genType const &amp;&#160;</td>
    368. 

  368.           <td class="paramname"><em>vert2</em>, </td>
    369. 

  369.         </tr>
    370. 

  370.         <tr>
    371. 

  371.           <td class="paramkey"></td>
    372. 

  372.           <td></td>
    373. 

  373.           <td class="paramtype">genType &amp;&#160;</td>
    374. 

  374.           <td class="paramname"><em>baryPosition</em>&#160;</td>
    375. 

  375.         </tr>
    376. 

  376.         <tr>
    377. 

  377.           <td></td>
    378. 

  378.           <td>)</td>
    379. 

  379.           <td></td><td></td>
    380. 

  380.         </tr>
    381. 

  381.       </table>
    382. 

  382. </div><div class="memdoc">
    383. 

  383. 

  384. <p>Compute the intersection of a ray and a triangle. </p>
    385. 

  385. <p>From GLM_GTX_intersect extension. </p>
    386. 

  386. 

  387. </div>
    388. 

  388. </div>
    389. 

  389. </div><!-- contents -->
    390. 

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    391. 

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    392. 

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    393. 

  393. <img class="footer" src="doxygen.png" alt="doxygen"/>
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    395. 

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    398.