Hi Jannik, depending on what you are doing in the drawImplementation(), I can think of 2 options.
If you need to modify the drawable/stateset you can actually deep copy you drawable and use a "FrameSwitch" class as explained in this post (contains a link to the code): http://forum.openscenegraph.org/viewtopic.php?t=14849 Otherwise if you need the frame number only as a reference, I think you might "pile up" frame numbers during the cull visit, and then "consume" them from your drawImplementation. Ricky On Wed, Feb 1, 2017 at 9:33 PM, Jannik Heller <scr...@baseoftrash.de> wrote: > Hi, > > I'm trying to use the frame number of the FrameStamp in osg::State for a > double buffering implementation in my custom drawImplementation() method. > > However, the frameStamp in osg::State is just a pointer so when the frame > advances, it will be increased. The problem is that in DrawThreadPerContext > mode, osg can advance the frame before the draw has completed, so the frame > number seen in drawImplementation() could be one frame ahead in some cases. > > Any idea what to do? Do you think OSG should be changed to produce an > accurate frame number for osg::State? > > Thank you! > > Cheers, > Jannik > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=70086#70086 > > > > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >
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