Hi Robert, many thanks for your answers and support. I'm far from reclaiming something. So as I understand your explanation the information I expected during cull trversal is just not there. So I'll look for another solution.
Thanks again - Werner - Am 02.02.2021 um 13:59 schrieb Robert Osfield: > On Tue, 2 Feb 2021 at 10:38, Werner Modenbach > <werner.modenb...@modenbach-ac.de <mailto:werner.modenb...@modenbach-ac.de>> > wrote: > > Hi Robert, > > > Replying to osg-users list so that others can chip in with insights or learn > from the discussion. > > > I think I'm close to getting the solution. > Unfortunately the CullStack doesn't handle any StateSets. > I also do not really understand what a StateGraph is. > I just guess, calling /CullVisitor->getCurrentStateGraph()->_stateSet > /gives me the accumulated StateSet. > Am I right? > Or is the accumulation of StateSets somewhere in CullVisitor->getState()? > But there is no method for just querying a uniform in State. > Most of the classes have only push(), pop() or apply() methods. No query > methods. > > > I have touched this code for years so you are probably more familiar with it > now than I. > > From the top of my head the CullVisitor doesn't directly manage individual > state components like Uniform, just the high level StateSet. The results of > the Cull traversal are > passed on to the a osgUitl::StateGraph that remains at the StateSet levels, > it's only once this StateGraph is applied during the draw traversal does the > OSG's draw traversal > behind to handle the individual components of state like models, attributes > and modes, and this is done via osg::State. > > What you are wanting to do is out of the ordinary, it's not something the OSG > was specifically designed to do. Whether your approach is really necessary > or the best approach I > don't know - I'm just trying to answer questions. When you do go beyond what > the OSG was originally envisaged to do you'll need to accept that you'll need > to dig into code and > figure stuff out, I can only help you so much. > > Robert. > > > > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
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