<div class="refentry" id="memoryBarrierShared">

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<div class="refnamediv">

<h2>Name</h2>

<p>memoryBarrierShared — controls the ordering of operations on shared variables issued by a single shader invocation</p>

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<h2>Declaration</h2>

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<code class="funcdef">void <strong class="fsfunc">memoryBarrierShared</strong>(</code>

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<td>void<code>)</code>;</td>

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<div class="refsect1" id="description">

<h2>Description</h2>

<p>

<code class="function">memoryBarrierShared</code> waits on the completion of all memory accesses resulting

from the use of shared variables and then returns with no other effect. When this function returns, the

results of any modifications to the content of shared variables will be visible

to any access to the same buffer from other shader invocations. In particular,

any modifications made in one shader stage are guaranteed to be visible to accesses

performed by shader invocations in subsequent stages when those invocations were triggered by the

execution of the original shader invocation (e.g., fragment shader invocations for a primitive resulting

from a particular geometry shader invocation).

</p>

<p>

<code class="function">memoryBarrierShared</code> is available only in the compute language.

</p>

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{$pipelinestall}{$examples}

<div class="refsect1" id="versions">

<h2>Version Support</h2>

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<span class="bold"><strong>OpenGL ES Shading Language Version</strong></span>

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<span class="bold"><strong>Function Name</strong></span>

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<span class="bold"><strong>1.00</strong></span>

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<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">

<span class="bold"><strong>3.00</strong></span>

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<th style="text-align: center; border-bottom: 2px solid ; ">

<span class="bold"><strong>3.10</strong></span>

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<td style="text-align: left; border-right: 2px solid ; ">

<code class="function">memoryBarrierShared</code>

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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; ">✔</td>

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</div>

</div>

<div class="refsect1" id="seealso">

<h2>See Also</h2>

<p>

<a class="citerefentry" href="memoryBarrier"><span class="citerefentry"><span class="refentrytitle">memoryBarrier</span></span></a>,

<a class="citerefentry" href="memoryBarrierImage"><span class="citerefentry"><span class="refentrytitle">memoryBarrierImage</span></span></a>,

<a class="citerefentry" href="memoryBarrierBuffer"><span class="citerefentry"><span class="refentrytitle">memoryBarrierBuffer</span></span></a>,

<a class="citerefentry" href="groupMemoryBarrier"><span class="citerefentry"><span class="refentrytitle">groupMemoryBarrier</span></span></a>

</p>

</div>

<div class="refsect1" id="Copyright">

<h2>Copyright</h2>

<p>

Copyright © 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="https://opencontent.org/openpub/" target="_top">https://opencontent.org/openpub/</a>.

</p>

</div>

</div>