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Dear Duc,<br>
<br>
If you read your own first mail with the code snippet you pasted:<br>
<br>
<span class="postbody"> virtual void operator ()
(osg::RenderInfo& renderInfo) const
<br>
{
<br>
#if !defined(OSG_GLES1_AVAILABLE) &&
!defined(OSG_GLES2_AVAILABLE)
<br>
glReadBuffer(_readBuffer);
<br>
#else
<br>
osg::notify(osg::NOTICE)<<"Error: GLES unable to do
glReadBuffer"<<std::endl;
<br>
#endif
<br>
<br>
I guess that's clear, right?<br>
<br>
Cheers<br>
Raymond<br>
<br>
</span><br>
<br>
<br>
<div class="moz-cite-prefix">On 29-12-2016 2:27, Sebastian
Messerschmidt wrote:<br>
</div>
<blockquote
cite="mid:trinity-c14879e6-9477-458a-8ffd-3e2e4a0c6d95-1482974876012@msvc-mesg-gmx105"
type="cite">
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charset=windows-1252">
<div class="mail_android_message" style="line-height: 1; padding:
0.5em">Hi,<br>
it is hard to tell what is going wrong without further
information. For instance it is crucial to call the glReadPixel
function in the right moment. Could you provide some example
that shows the problem? Also: is the osgscreencapture or the
osgviewers screenshot-functionality working? <br>
<br>
Cheers <br>
Sebastian<br>
-- <br>
Diese Nachricht wurde von meinem Android Mobiltelefon mit GMX
Mail gesendet.</div>
<div class="mail_android_quote" style="line-height: 1; padding:
0.3em">Am 29.12.16, 02:06, duc nguyen <a class="moz-txt-link-rfc2396E" href="mailto:osgforum@tevs.eu"><osgforum@tevs.eu></a>
schrieb:
<blockquote class="gmail_quote" style="margin: 0.8ex 0pt 0pt
0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;"> <br>
hartwigw wrote:<br>
> Hi,<br>
><br>
> glReadPixels is not supported by iOS.<br>
><br>
> Cheers,<br>
> Hartwig<br>
<br>
<br>
But my iOS device use Open GLES 2.0 an it support glReadPixels
function<br>
<br>
------------------<br>
Read this topic online here:<br>
<a moz-do-not-send="true"
href="http://forum.openscenegraph.org/viewtopic.php?p=69789#69789"
target="_blank">http://forum.openscenegraph.org/viewtopic.php?p=69789#69789</a><br>
<br>
<br>
<br>
<br>
<br>
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</blockquote>
</div>
<br>
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