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"opengl-man.css" /><title>gl_WorkGroupID - 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=
"gl_WorkGroupID"></a><div class=
"titlepage"></div><div class=
"refnamediv"><h2>Name
</h2><p>gl_WorkGroupID — contains the index of the workgroup currently being operated on by a compute shader
</p></div><div class=
"refsynopsisdiv"><h2>Declaration
</h2><div class=
"funcsynopsis"><code class=
"function">in uvec3 gl_WorkGroupID
</code></div></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"description"></a><h2>Description
</h2><p>
5 In the compute language,
<code class=
"function">gl_WorkGroupID
</code>
6 contains the
3-dimensional index of the global work group
7 that the current compute shader invocation is executing within. The possible values range
8 across the parameters passed into
<code class=
"function">glDispatchCompute
</code>, i.e., from (
0,
0,
0) to
9 (
<code class=
"function">gl_NumWorkGroups.x
</code> -
1,
<code class=
"function">gl_NumWorkGroups.y
</code> -
1,
<code class=
"function">gl_NumWorkGroups.z
</code> -
1).
10 </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>Variable
</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">gl_WorkGroupID
</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>-
</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>
11 <a href=
"gl_NumWorkGroups.xml"><span class=
"citerefentry"><span class=
"refentrytitle">gl_NumWorkGroups
</span></span></a>,
12 <a href=
"gl_WorkGroupID.xml"><span class=
"citerefentry"><span class=
"refentrytitle">gl_WorkGroupID
</span></span></a>,
13 <a href=
"gl_LocalInvocationID.xml"><span class=
"citerefentry"><span class=
"refentrytitle">gl_LocalInvocationID
</span></span></a>
14 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"Copyright"></a><h2>Copyright
</h2><p>
15 Copyright
<span class=
"trademark"></span>©
2011-
2012 Khronos Group.
16 This material may be distributed subject to the terms and conditions set forth in
17 the Open Publication License, v
1.0,
8 June
1999.
18 <a href=
"http://opencontent.org/openpub/" target=
"_top">http://opencontent.org/openpub/
</a>.
19 </p></div></div></body></html>