Hi Jin,
quit hard to say what exactly going wrong or not. you just mention the size
of the database, but nothing about the structure of it. 1.15GB is a huge
database if you have to hold the hole in your local memory. the ive is more
or less a memory dump, when you like to open a file it gets hole loaded or
nothing. so i guess your application consume a lot of memory. may the GPU is
the bottle neck (nbr of primitives, triangles,...) or just the CPU or
memory. so what kind of data are you working on? paged? LOD? ...
/adegli
2008/1/16, Jin WZ <[EMAIL PROTECTED]>:
>
> Hi,
>
> I have written a viewer on Window XP using MFC based on osviewerMFC
> example code. I add eighteen IVE-format models(about 1.15GB on harddisk)
> as children node to the scene's root group node, then, the rendering process
> gives a sharp slowdown and the FPS decrease to less than 1.0 . Could
> anyone give me some help on how to enhance the rendering performance?
>
> I am using OSG 2.0. The code I used to add a IVE-format model to scene is:
>
> ......
> // Load the model from the model name
> osg::ref_ptr<osg::Node> m_pNewModel;
> m_pNewModel = osgDB::readNodeFile(strModel.GetString()); //strModel
> is CString variable contains the model's full path.
> if (m_pNewModel.get())
> {
> osgUtil::Optimizer optimizer;
> optimizer.optimize(m_pNewModel.get());
> optimizer.reset();
>
> // Add the model to the scene
> mRoot->addChild(m_pNewModel.get());
> //mRoot
> is the scene's root node defined as osg::ref_ptr<osg::Group>
> }
> ......
> _______________________________________________
> osg-users mailing list
> osg-users@lists.openscenegraph.org
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>
--
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Adrian Egli
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