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<head>
<title>packHalf2x16 - OpenGL 4 Reference Pages</title>
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<body>
<header/>
<div class="refentry" id="packHalf2x16">
<div class="titlepage"/>
<div class="refnamediv">
<h2>Name</h2>
<p>packHalf2x16 — convert two 32-bit floating-point quantities to 16-bit quantities and pack them into a single 32-bit integer</p>
</div>
<div class="refsynopsisdiv">
<h2>Declaration</h2>
<div class="funcsynopsis">
<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">
<tr>
<td>
<code class="funcdef">uint <strong class="fsfunc">packHalf2x16</strong>(</code>
</td>
<td>vec2 <var class="pdparam">v</var><code>)</code>;</td>
</tr>
</table>
<div class="funcprototype-spacer"> </div>
</div>
</div>
<div class="refsect1" id="parameters">
<h2>Parameters</h2>
<div class="variablelist">
<dl class="variablelist">
<dt>
<span class="term">
<em class="parameter">
<code>v</code>
</em>
</span>
</dt>
<dd>
<p>
Specify a vector of two 32-bit floating point values that are to be converted to 16-bit representation and packed into the result.
</p>
</dd>
</dl>
</div>
</div>
<div class="refsect1" id="description">
<h2>Description</h2>
<p>
<code class="function">packHalf2x16</code> returns an unsigned integer obtained by converting the
components of a two-component floating-point vector to
the 16-bit floating-point representation found in the
OpenGL Specification, and then packing these two 16-bit integers into a 32-bit unsigned integer.
The first vector component specifies the 16 least-significant bits of the result; the second component
specifies the 16 most-significant bits.
</p>
</div>
<div class="refsect1" id="versions">
<h2>Version Support</h2>
<div class="informaltable">
<table style="border-collapse: collapse; border-top: 2px solid ; border-bottom: 2px solid ; border-left: 2px solid ; border-right: 2px solid ; ">
<colgroup>
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</th>
<th style="text-align: center; border-bottom: 2px solid ; " colspan="12">
<span class="bold"><strong>OpenGL Shading Language Version</strong></span>
</th>
</tr>
<tr>
<th style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>Function Name</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>1.10</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>1.20</strong></span>
</th>
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<span class="bold"><strong>1.30</strong></span>
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<span class="bold"><strong>1.40</strong></span>
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<span class="bold"><strong>1.50</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>3.30</strong></span>
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<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>4.00</strong></span>
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<span class="bold"><strong>4.10</strong></span>
</th>
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<span class="bold"><strong>4.20</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>4.30</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>4.40</strong></span>
</th>
<th style="text-align: center; border-bottom: 2px solid ; ">
<span class="bold"><strong>4.50</strong></span>
</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align: left; border-right: 2px solid ; ">packHalf2x16</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
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<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">✔</td>
<td style="text-align: center; border-right: 2px solid ; ">✔</td>
<td style="text-align: center; border-right: 2px solid ; ">✔</td>
<td style="text-align: center; ">✔</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="refsect1" id="seealso">
<h2>See Also</h2>
<p>
<a class="citerefentry" href="packDouble2x32.xhtml"><span class="citerefentry"><span class="refentrytitle">packDouble2x32</span></span></a>,
<a class="citerefentry" href="unpackDouble2x32.xhtml"><span class="citerefentry"><span class="refentrytitle">unpackDouble2x32</span></span></a>,
<a class="citerefentry" href="unpackHalf2x16.xhtml"><span class="citerefentry"><span class="refentrytitle">unpackHalf2x16</span></span></a>
</p>
</div>
<div class="refsect1" id="Copyright">
<h2>Copyright</h2>
<p>
Copyright <span class="trademark"/>© 2011-2014 Khronos Group.
This material may be distributed subject to the terms and conditions set forth in
the Open Publication License, v 1.0, 8 June 1999.
<a class="link" href="http://opencontent.org/openpub/" target="_top">http://opencontent.org/openpub/</a>.
</p>
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