Hi FL, I'd use a slave Camera attached to the Viewer that shares the same graphics context as the main viewer windows, have this Camera use an FBO, and just set up the viewport and buffers to the size you need. You can toggle on/off the slave Camera by setting it's NodeMask to 0x0 for off, 0xffffffff for on.
Robert. On 16 April 2014 09:45, F Lallauret <fabrice.lallau...@fr.thalesgroup.com> wrote: > Hi, > > I have a scene render with RTT and quad geode for some postprocesses (e.g. a > pseudo "night vision" shader). I want to get a snapshot of the displayed > image but with a given size (e.g. always 512x512) independently of the real > screen size. How can I do that ? The examples I found are always dependent of > the screen size. > > Cheers, > FL > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=58954#58954 > > > > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
