HI JS, Just select the CullDrawThreadPerContext threading model, this will automatically sync the end of the frame dispatch inside the viewer rendreingTraversals()/frame().
Robert. On Tue, Mar 10, 2009 at 7:44 PM, Jean-Sébastien Guay <[email protected]> wrote: > Hi Robert, > > I was wondering if there was a way to know when all draw threads for a given > frame have finished rendering? Since the update traversal for frame i+1 can > start before the draw traversal of frame i is completed (for STATIC > objects), we'd like to get some kind of signal to know when it's safe to > start updating matrices in transforms again. > > I know the "good solution" would be to double-buffer the scene graph or > something like that, but that would require a bit more change in our code > base than I'd like right now, so I was wondering if there was a "quick and > easy solution" I could try. > > We don't want to run the viewer single threaded because we often have > multiple views and threading helps a lot there. All we don't want (for now) > is the fact that a frame's update starts before the end of the previous > frame's draw. > > Thanks in advance, > > J-S > -- > ______________________________________________________ > Jean-Sebastien Guay [email protected] > http://www.cm-labs.com/ > http://whitestar02.webhop.org/ > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
