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"stylesheet" type=
"text/css" href=
"opengl-man.css" /><title>unpackHalf2x16 - OpenGL Shading Language (GLSL)
</title><meta name=
"generator" content=
"DocBook XSL Stylesheets V1.69.1" /></head><body><div class=
"refentry" lang=
"en" xml:
lang=
"en"><a id=
"unpackHalf2x16"></a><div class=
"titlepage"></div><div class=
"refnamediv"><h2>Name
</h2><p>unpackHalf2x16 — convert two
16-bit floating-point values packed into a single
32-bit integer into a vector of two
32-bit floating-point quantities
</p></div><div class=
"refsynopsisdiv"><h2>Declaration
</h2><div class=
"funcsynopsis"><p><code class=
"funcdef">vec2
<b class=
"fsfunc">unpackHalf2x16
</b>(
</code>uint
<var class=
"pdparam">v
</var><code>)
</code>;
</p></div></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"parameters"></a><h2>Parameters
</h2><div class=
"variablelist"><dl><dt><span class=
"term"><em class=
"parameter"><code>v
</code></em></span></dt><dd><p>
5 Specify a single
32-bit unsigned integer values that contains two
16-bit floating point values to be unpacked.
6 </p></dd></dl></div></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"description"></a><h2>Description
</h2><p>
7 <code class=
"function">unpackHalf2x16
</code> returns a two-component floating-point vector with
8 components obtained by unpacking a
32-bit unsigned
9 integer into a pair of
16-bit values, interpreting those
10 values as
16-bit floating-point numbers according to the
11 OpenGL Specification, and converting them to
32-bit
12 floating-point values.
13 The first component of the vector is obtained from the
14 16 least-significant bits of v; the second component is
15 obtained from the
16 most-significant bits of v.
16 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"versions"></a><h2>Version Support
</h2><div class=
"informaltable"><table border=
"1"><colgroup><col align=
"left" /><col align=
"center" /><col align=
"center" /><col align=
"center" /><col align=
"center" /><col align=
"center" /><col align=
"center" /><col align=
"center" /><col align=
"center" /><col align=
"center" /><col align=
"center" /></colgroup><thead><tr><th align=
"left"><span class=
"bold"><strong>Function
</strong></span></th><th align=
"left"><span class=
"bold"><strong>Version
1.10</strong></span></th><th align=
"left"><span class=
"bold"><strong>Version
1.20</strong></span></th><th align=
"left"><span class=
"bold"><strong>Version
1.30</strong></span></th><th align=
"left"><span class=
"bold"><strong>Version
1.40</strong></span></th><th align=
"left"><span class=
"bold"><strong>Version
1.50</strong></span></th><th align=
"left"><span class=
"bold"><strong>Version
3.30</strong></span></th><th align=
"left"><span class=
"bold"><strong>Version
4.00</strong></span></th><th align=
"left"><span class=
"bold"><strong>Version
4.10</strong></span></th><th align=
"left"><span class=
"bold"><strong>Version
4.20</strong></span></th><th align=
"center"><span class=
"bold"><strong>Version
4.30</strong></span></th></tr><tr><th align=
"left">unpackHalf2x16
</th><th align=
"center"><span class=
"emphasis"><em>-
</em></span></th><th align=
"center"><span class=
"emphasis"><em>-
</em></span></th><th align=
"center"><span class=
"emphasis"><em>-
</em></span></th><th align=
"center"><span class=
"emphasis"><em>-
</em></span></th><th align=
"center"><span class=
"emphasis"><em>-
</em></span></th><th align=
"center"><span class=
"emphasis"><em>-
</em></span></th><th align=
"center"><span class=
"emphasis"><em>-
</em></span></th><th align=
"center"><span class=
"emphasis"><em>-
</em></span></th><th align=
"center"><span class=
"emphasis"><em>Y
</em></span></th><th align=
"center"><span class=
"emphasis"><em>Y
</em></span></th></tr></thead></table></div></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"seealso"></a><h2>See Also
</h2><p>
17 <a href=
"packDouble2x32.xml"><span class=
"citerefentry"><span class=
"refentrytitle">packDouble2x32
</span></span></a>,
18 <a href=
"unpackDouble2x32.xml"><span class=
"citerefentry"><span class=
"refentrytitle">unpackDouble2x32
</span></span></a>,
19 <a href=
"packHalf2x16.xml"><span class=
"citerefentry"><span class=
"refentrytitle">packHalf2x16
</span></span></a>
20 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"Copyright"></a><h2>Copyright
</h2><p>
21 Copyright
<span class=
"trademark"></span>©
2011 Khronos Group.
22 This material may be distributed subject to the terms and conditions set forth in
23 the Open Publication License, v
1.0,
8 June
1999.
24 <a href=
"http://opencontent.org/openpub/" target=
"_top">http://opencontent.org/openpub/
</a>.
25 </p></div></div></body></html>