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 > [email protected] > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph. > org > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
