The transforms might slow down the CullVisitor. Please post the model as a .osg file. Are you running the osgUtil::Optimizer in your app on the loaded model?
Please take osgviewer timings again, but first disable the Optimizer with OSG_OPTIMIZER=OFF. It would be interesting to see if this allows you to reproduce the performance hit in osgviewer. (My theory is the Transforms are causing the performance hit. Osgviewer optimizes them away because they're marked STATIC, but your app does not, so you have the performance hit in your app but not in osgviewer.) -Paul > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf > Of guher b > Sent: Monday, February 25, 2008 9:08 AM > To: OpenSceneGraph Users > Subject: Re: [osg-users] osgUtil::cullvisitor > > Hi, > I converted the model to an ascii osg file, and in the file, > there exists, > -12 groups > -59 matrix transforms some holding totally 20 > animationpathcallbacks -40 geodes > -4 statesets, one of them holding 1 material and 1 > textureunit and 11 geodes referencing this stateset > > I tested the model with osgviewer, with 8 models the > statistics are as follows, cull time: 34.5 draw time: 40.5 > frame rate:11.5 In this case, the cull time does not increase > 5 ms with the addition of 1 model. But for 10 models viewed > in osgViewer, cull time: 110.5 draw time: 62.5 frame rate:4.27 > > yet in my application, when there exist a single model, on > the addition of a second model, the cull time increases as 5 ms. > > Thanks in advance > > > > --- Gordon Tomlinson <[EMAIL PROTECTED]> > wrote: > > > 5ms for a 1500 polys is a lot, > > > > are there a lot of different textures, colours, materials on the > > models ?, large textures sizes ? > > > > Are there degenerate polygons etc. > > > > do you see the same hit is you run osgview with one of the > problematic > > cases ? > > > > Could you post an example of the model the exhibits the problems > > > > If you run you model through optimize and write it out as an IVE or > > even an ASCII OSG format do you still see the same hit ? > > > > > > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] > > On Behalf Of Robert > > Osfield > > Sent: Monday, February 25, 2008 9:25 AM > > To: OpenSceneGraph Users > > Subject: Re: [osg-users] osgUtil::cullvisitor > > > > Hi, > > > > The most common problem with performance is a poorly > conditioned scene > > graph, so this is the place to look first rather assuming > there is a > > problem in the core OSG that needs a major rewrite. > > The OSG is used > > very widely with plenty of people pushing it as hard if not harder > > than you are and still hitting a solid 60Hz. > > > > Now an increase in cull time of 5ms with adding a single model is > > seriously out of keeping, so this really needs to be look at in > > isolation - what exactly is in the model? What update, > cull and draw > > times do you get for each of these models? > > > > Robert. > > > > On Mon, Feb 25, 2008 at 1:36 PM, guher b <[EMAIL PROTECTED]> wrote: > > > Hi, > > > > > > I am using a standard graphics card for todays, > > and rendering a 100 > > > mb (s3tc textured) terrain database. > > > The cull traversal time increases too much when > > I add animated > > > models (osg model with update callback) (each > > having 1400-1500 > > > polygons) to the scene, so that the frame rate > > drops too much. Each > > > addition of model makes 5 msec increase in cull > > traversal time. I > > > tried to optimize the cull time with > > reimplementing the cull > > > visitor, however, I could not achieve any > > improvements on this issue > > > yet (the problem is that the cull visitor takes > > too much time with > > > the addition of models, so that the problem is > > cpu bound, the draw > > > time is not bad), Does anybody know how could i > > carry the load from > > > cpu to graphics card in cullvisitor? > > > > > > Thanks a heap > > > > > > Thanks > > > > > > > > > > > > > > > > > > > > > ______________________________________________________________________ > > > ______________ > > > Be a better friend, newshound, and > > > know-it-all with Yahoo! Mobile. Try it now. > > > > > > http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ > > > > > > _______________________________________________ > > > 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-opensce negraph.org > > > > > > _______________________________________________ > > osg-users mailing list > > osg-users@lists.openscenegraph.org > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-opensce negraph.org > > > > > > > ______________________________________________________________ > ______________________ > Never miss a thing. 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