Hi Sergey
I'm not familiarized with OpenFlight loader,
But you could use osgconv to convert your model from flt to osgb.
Then use the osgb version in your application. This way, you use an
optimized
scene and read the native osg format when you load the model that will
speed up the read process.
HTH
David
2013/3/11 Sergey Bud <sergey...@xakep.ru>
> Hi,
> I am using openscenegraph 3.0.1 with Visual Studio 2010. Everything is
> working fine, I assume build is fine.
>
> Now I am trying to load OpenFlight models and terrains to my scene. The
> openflight plugin seem to have a osgUtil::Optimizer::optimize() call
> inside it so it optimizes every loaded model.
>
> Code:
>
> // File ReaderWriter.flt
> // virtual ReadResult readNode(const std::string& file, const Options*
> options) const
> // ...
> if (!document.getPreserveFace())
> {
> osgUtil::Optimizer optimizer;
> optimizer.optimize(document.getHeaderNode(),
> osgUtil::Optimizer::SHARE_DUPLICATE_STATE |
> osgUtil::Optimizer::MERGE_GEOMETRY |
> osgUtil::Optimizer::MERGE_GEODES |
> osgUtil::Optimizer::TESSELLATE_GEOMETRY |
> osgUtil::Optimizer::STATIC_OBJECT_DETECTION);
> }
> // ...
>
>
>
>
> So, the optimisation is helpfull, it cuts a lot of StateSet, Geode etc.
> nodes, but takes a lot of time. So I am trying to save the optimized
> model/terrain back to the file:
>
> Code:
>
> // the optimization is taking place in this instruction, inside the plugin
> code.
> osg::ref_ptr<osg::Node> root = osgDB::readNodeFile("model.flt");
> osgDB::writeNodeFile(*root,"model_optimized.flt");
>
>
>
>
> But all I get is the file with different size (why?), but with the same
> stats (with the same amount of StateSet and others node) like the
> optimization never took place.
>
> Is it because this optimization is such that optimized scene cannot be
> saved, or am I doing something wrong?
>
> Please advise me how to either save optimized graph, or decrease loading
> time in any other way.
>
> Thank you!
>
> Cheers,
> Sergey
>
> ------------------
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=53024#53024
>
>
>
>
>
> _______________________________________________
> 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
