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  38. <div class="title">GLM_GTC_type_ptr</div>  </div>
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  39. <div class="ingroups"><a class="el" href="a00138.html">GTC Extensions (Stable)</a></div></div><!--header-->
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  43. Functions</h2></td></tr>
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  90. <tr class="memitem:ga5d91c17941c35effc46b335ad6fb6252"><td class="memTemplItemLeft" align="right" valign="top">detail::tvec4&lt; T &gt;&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00158.html#ga5d91c17941c35effc46b335ad6fb6252">make_vec4</a> (T const *const ptr)</td></tr>
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  92. <tr class="memitem:ga140f5c39d519780c61e02e47daa7d18a"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
    93. 

  93. <tr class="memitem:ga140f5c39d519780c61e02e47daa7d18a"><td class="memTemplItemLeft" align="right" valign="top">genType::value_type const *&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00158.html#ga140f5c39d519780c61e02e47daa7d18a">value_ptr</a> (genType const &amp;vec)</td></tr>
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  95. </table>
    96. 

  96. <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
    97. 

  97. <p>Handles the interaction between pointers and vector, matrix types. </p>
    98. 

  98. <p>This extension defines an overloaded function, glm::value_ptr, which takes any of the <a class="el" href="a00144.html">core template types</a>. It returns a pointer to the memory layout of the object. Matrix types store their values in column-major order.</p>
    99. 

  99. <p>This is useful for uploading data to matrices or copying data to buffer objects.</p>
    100. 

  100. <p>Example: </p>
    101. 

  101. <div class="fragment"><div class="line"><span class="preprocessor">#include &lt;<a class="code" href="a00035.html" title="OpenGL Mathematics (glm.g-truc.net)">glm/glm.hpp</a>&gt;</span></div>
    102. 

  102. <div class="line"><span class="preprocessor">#include &lt;<a class="code" href="a00109.html" title="OpenGL Mathematics (glm.g-truc.net)">glm/gtc/type_ptr.hpp</a>&gt;</span></div>
    103. 

  103. <div class="line"></div>
    104. 

  104. <div class="line"><a class="code" href="a00142.html#ga8a44105c47072f9ea1413f15faa31f64" title="3 components vector of floating-point numbers.">glm::vec3</a> aVector(3);</div>
    105. 

  105. <div class="line"><a class="code" href="a00142.html#gade0eb47c01f79384a6f38017ede17446" title="4 columns of 4 components matrix of floating-point numbers.">glm::mat4</a> someMatrix(1.0);</div>
    106. 

  106. <div class="line"></div>
    107. 

  107. <div class="line">glUniform3fv(uniformLoc, 1, <a class="code" href="a00158.html#ga140f5c39d519780c61e02e47daa7d18a" title="Return the constant address to the data of the input parameter.">glm::value_ptr</a>(aVector));</div>
    108. 

  108. <div class="line">glUniformMatrix4fv(uniformMatrixLoc, 1, GL_FALSE, <a class="code" href="a00158.html#ga140f5c39d519780c61e02e47daa7d18a" title="Return the constant address to the data of the input parameter.">glm::value_ptr</a>(someMatrix));</div>
    109. 

  109. </div><!-- fragment --><p>&lt;<a class="el" href="a00109.html" title="OpenGL Mathematics (glm.g-truc.net)">glm/gtc/type_ptr.hpp</a>&gt; need to be included to use these functionalities. </p>
    110. 

  110. <h2 class="groupheader">Function Documentation</h2>
    111. 

  111. <a class="anchor" id="gafd896ef261762a6ab412b61181d5ecae"></a>
    112. 

  112. <div class="memitem">
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    116. 

  116.           <td class="memname">detail::tmat2x2&lt;T&gt; glm::make_mat2 </td>
    117. 

  117.           <td>(</td>
    118. 

  118.           <td class="paramtype">T const *const&#160;</td>
    119. 

  119.           <td class="paramname"><em>ptr</em></td><td>)</td>
    120. 

  120.           <td></td>
    121. 

  121.         </tr>
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  122.       </table>
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  123. </div><div class="memdoc">
    124. 

  124. 

  125. <p>Build a matrix from a pointer. </p>
    126. 

  126. <dl class="section see"><dt>See Also</dt><dd><a class="el" href="a00158.html" title="Handles the interaction between pointers and vector, matrix types.">GLM_GTC_type_ptr</a> </dd></dl>
    127. 

  127. 

  128. </div>
    129. 

  129. </div>
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  135.           <td class="memname">detail::tmat2x2&lt;T&gt; glm::make_mat2x2 </td>
    136. 

  136.           <td>(</td>
    137. 

  137.           <td class="paramtype">T const *const&#160;</td>
    138. 

  138.           <td class="paramname"><em>ptr</em></td><td>)</td>
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  139.           <td></td>
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  140.         </tr>
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  141.       </table>
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  142. </div><div class="memdoc">
    143. 

  143. 

  144. <p>Build a matrix from a pointer. </p>
    145. 

  145. <dl class="section see"><dt>See Also</dt><dd><a class="el" href="a00158.html" title="Handles the interaction between pointers and vector, matrix types.">GLM_GTC_type_ptr</a> </dd></dl>
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  146. 

  147. </div>
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  148. </div>
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  154.           <td class="memname">detail::tmat2x3&lt;T&gt; glm::make_mat2x3 </td>
    155. 

  155.           <td>(</td>
    156. 

  156.           <td class="paramtype">T const *const&#160;</td>
    157. 

  157.           <td class="paramname"><em>ptr</em></td><td>)</td>
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  159.         </tr>
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  160.       </table>
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  161. </div><div class="memdoc">
    162. 

  162. 

  163. <p>Build a matrix from a pointer. </p>
    164. 

  164. <dl class="section see"><dt>See Also</dt><dd><a class="el" href="a00158.html" title="Handles the interaction between pointers and vector, matrix types.">GLM_GTC_type_ptr</a> </dd></dl>
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  165. 

  166. </div>
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  173.           <td class="memname">detail::tmat2x4&lt;T&gt; glm::make_mat2x4 </td>
    174. 

  174.           <td>(</td>
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  175.           <td class="paramtype">T const *const&#160;</td>
    176. 

  176.           <td class="paramname"><em>ptr</em></td><td>)</td>
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  181. 

  182. <p>Build a matrix from a pointer. </p>
    183. 

  183. <dl class="section see"><dt>See Also</dt><dd><a class="el" href="a00158.html" title="Handles the interaction between pointers and vector, matrix types.">GLM_GTC_type_ptr</a> </dd></dl>
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  192.           <td class="memname">detail::tmat3x3&lt;T&gt; glm::make_mat3 </td>
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  193.           <td>(</td>
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  194.           <td class="paramtype">T const *const&#160;</td>
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  195.           <td class="paramname"><em>ptr</em></td><td>)</td>
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  200. 

  201. <p>Build a matrix from a pointer. </p>
    202. 

  202. <dl class="section see"><dt>See Also</dt><dd><a class="el" href="a00158.html" title="Handles the interaction between pointers and vector, matrix types.">GLM_GTC_type_ptr</a> </dd></dl>
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  212.           <td>(</td>
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  213.           <td class="paramtype">T const *const&#160;</td>
    214. 

  214.           <td class="paramname"><em>ptr</em></td><td>)</td>
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  219. 

  220. <p>Build a matrix from a pointer. </p>
    221. 

  221. <dl class="section see"><dt>See Also</dt><dd><a class="el" href="a00158.html" title="Handles the interaction between pointers and vector, matrix types.">GLM_GTC_type_ptr</a> </dd></dl>
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  231.           <td>(</td>
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  232.           <td class="paramtype">T const *const&#160;</td>
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  233.           <td class="paramname"><em>ptr</em></td><td>)</td>
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  238. 

  239. <p>Build a matrix from a pointer. </p>
    240. 

  240. <dl class="section see"><dt>See Also</dt><dd><a class="el" href="a00158.html" title="Handles the interaction between pointers and vector, matrix types.">GLM_GTC_type_ptr</a> </dd></dl>
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  249.           <td class="memname">detail::tmat3x4&lt;T&gt; glm::make_mat3x4 </td>
    250. 

  250.           <td>(</td>
    251. 

  251.           <td class="paramtype">T const *const&#160;</td>
    252. 

  252.           <td class="paramname"><em>ptr</em></td><td>)</td>
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  257. 

  258. <p>Build a matrix from a pointer. </p>
    259. 

  259. <dl class="section see"><dt>See Also</dt><dd><a class="el" href="a00158.html" title="Handles the interaction between pointers and vector, matrix types.">GLM_GTC_type_ptr</a> </dd></dl>
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    269. 

  269.           <td>(</td>
    270. 

  270.           <td class="paramtype">T const *const&#160;</td>
    271. 

  271.           <td class="paramname"><em>ptr</em></td><td>)</td>
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  276. 

  277. <p>Build a matrix from a pointer. </p>
    278. 

  278. <dl class="section see"><dt>See Also</dt><dd><a class="el" href="a00158.html" title="Handles the interaction between pointers and vector, matrix types.">GLM_GTC_type_ptr</a> </dd></dl>
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  287.           <td class="memname">detail::tmat4x2&lt;T&gt; glm::make_mat4x2 </td>
    288. 

  288.           <td>(</td>
    289. 

  289.           <td class="paramtype">T const *const&#160;</td>
    290. 

  290.           <td class="paramname"><em>ptr</em></td><td>)</td>
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  295. 

  296. <p>Build a matrix from a pointer. </p>
    297. 

  297. <dl class="section see"><dt>See Also</dt><dd><a class="el" href="a00158.html" title="Handles the interaction between pointers and vector, matrix types.">GLM_GTC_type_ptr</a> </dd></dl>
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  306.           <td class="memname">detail::tmat4x3&lt;T&gt; glm::make_mat4x3 </td>
    307. 

  307.           <td>(</td>
    308. 

  308.           <td class="paramtype">T const *const&#160;</td>
    309. 

  309.           <td class="paramname"><em>ptr</em></td><td>)</td>
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  315. <p>Build a matrix from a pointer. </p>
    316. 

  316. <dl class="section see"><dt>See Also</dt><dd><a class="el" href="a00158.html" title="Handles the interaction between pointers and vector, matrix types.">GLM_GTC_type_ptr</a> </dd></dl>
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  325.           <td class="memname">detail::tmat4x4&lt;T&gt; glm::make_mat4x4 </td>
    326. 

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

  327.           <td class="paramtype">T const *const&#160;</td>
    328. 

  328.           <td class="paramname"><em>ptr</em></td><td>)</td>
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  333. 

  334. <p>Build a matrix from a pointer. </p>
    335. 

  335. <dl class="section see"><dt>See Also</dt><dd><a class="el" href="a00158.html" title="Handles the interaction between pointers and vector, matrix types.">GLM_GTC_type_ptr</a> </dd></dl>
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  344.           <td class="memname">detail::tquat&lt;T&gt; glm::make_quat </td>
    345. 

  345.           <td>(</td>
    346. 

  346.           <td class="paramtype">T const *const&#160;</td>
    347. 

  347.           <td class="paramname"><em>ptr</em></td><td>)</td>
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  351. </div><div class="memdoc">
    352. 

  352. 

  353. <p>Build a quaternion from a pointer. </p>
    354. 

  354. <dl class="section see"><dt>See Also</dt><dd><a class="el" href="a00158.html" title="Handles the interaction between pointers and vector, matrix types.">GLM_GTC_type_ptr</a> </dd></dl>
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  363.           <td class="memname">detail::tvec2&lt;T&gt; glm::make_vec2 </td>
    364. 

  364.           <td>(</td>
    365. 

  365.           <td class="paramtype">T const *const&#160;</td>
    366. 

  366.           <td class="paramname"><em>ptr</em></td><td>)</td>
    367. 

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    371. 

  371. 

  372. <p>Build a vector from a pointer. </p>
    373. 

  373. <dl class="section see"><dt>See Also</dt><dd><a class="el" href="a00158.html" title="Handles the interaction between pointers and vector, matrix types.">GLM_GTC_type_ptr</a> </dd></dl>
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  382.           <td class="memname">detail::tvec3&lt;T&gt; glm::make_vec3 </td>
    383. 

  383.           <td>(</td>
    384. 

  384.           <td class="paramtype">T const *const&#160;</td>
    385. 

  385.           <td class="paramname"><em>ptr</em></td><td>)</td>
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    387. 

  387.         </tr>
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  388.       </table>
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  389. </div><div class="memdoc">
    390. 

  390. 

  391. <p>Build a vector from a pointer. </p>
    392. 

  392. <dl class="section see"><dt>See Also</dt><dd><a class="el" href="a00158.html" title="Handles the interaction between pointers and vector, matrix types.">GLM_GTC_type_ptr</a> </dd></dl>
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  401.           <td class="memname">detail::tvec4&lt;T&gt; glm::make_vec4 </td>
    402. 

  402.           <td>(</td>
    403. 

  403.           <td class="paramtype">T const *const&#160;</td>
    404. 

  404.           <td class="paramname"><em>ptr</em></td><td>)</td>
    405. 

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  406.         </tr>
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  408. </div><div class="memdoc">
    409. 

  409. 

  410. <p>Build a vector from a pointer. </p>
    411. 

  411. <dl class="section see"><dt>See Also</dt><dd><a class="el" href="a00158.html" title="Handles the interaction between pointers and vector, matrix types.">GLM_GTC_type_ptr</a> </dd></dl>
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    420. 

  420.           <td class="memname">genType::value_type const* glm::value_ptr </td>
    421. 

  421.           <td>(</td>
    422. 

  422.           <td class="paramtype">genType const &amp;&#160;</td>
    423. 

  423.           <td class="paramname"><em>vec</em></td><td>)</td>
    424. 

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    425. 

  425.         </tr>
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    428. 

  428. 

  429. <p>Return the constant address to the data of the input parameter. </p>
    430. 

  430. <dl class="section see"><dt>See Also</dt><dd><a class="el" href="a00158.html" title="Handles the interaction between pointers and vector, matrix types.">GLM_GTC_type_ptr</a> </dd></dl>
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