<div class="refentry"><a id="glFinish"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glFinish — block until all GL execution is complete</p></div><div class="refsynopsisdiv"><h2>C Specification</h2><div class="funcsynopsis"><table class="funcprototype-table" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">void <strong class="fsfunc">glFinish</strong>(</code></td><td><code>void)</code>;</td><td> </td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1"><a id="description"></a><h2>Description</h2><p>

<code class="function">glFinish</code> does not return until the effects

of all previously called GL commands are complete. Such effects

include all changes to GL client and server state as well as all

changes to the frame buffer contents.</p></div><div class="refsect1"><a id="notes"></a><h2>Notes</h2><p>

<code class="function">glFinish</code> is NOT required before a call

to eglSwapBuffers

or <a class="citerefentry" href="glReadPixels"><span class="citerefentry"><span class="refentrytitle">glReadPixels</span></span></a>.

<code class="function">glFinish</code> can take some time and for

performance reasons it is best to use this function

infrequently and only when necessary.

</p></div><div class="refsect1"><a id="seealso"></a><h2>See Also</h2><p>

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

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

eglSwapBuffers

</p></div><div class="refsect1"><a id="copyright"></a><h2>Copyright</h2><p>

Copyright © 2003-2004

Silicon Graphics, Inc. This document is licensed under the SGI

Free Software B License. For details, see

<a class="ulink" href="https://web.archive.org/web/20171022161616/http://oss.sgi.com/projects/FreeB/" target="_top">https://web.archive.org/web/20171022161616/http://oss.sgi.com/projects/FreeB/</a>.

</p></div></div>