Art, Don't worry about it. I was just looking to see if someone else experienced the same behavior. It's probably specific to my installation. I'm just doing some prototyping and can come back to this later.
Thanks, Brian [EMAIL PROTECTED] wrote: ----- To: OpenSceneGraph Users <[email protected]> From: Art Tevs <[EMAIL PROTECTED]> Sent by: [EMAIL PROTECTED] Date: 05/21/2008 05:39PM Subject: Re: [osg-users] osgPPU Performance Hi Brian, hmm, I have tried it and I do not get higher speed out of it. I included the stats handler and pressed 's'. I can see statistics on the screen, however I do not get higher frame rate. Maybe the problem is somewhere else (vsync, ...). I appologies I can not go deeper in that problem in the moment. I have a deadline on 28th may, hence I am now not in the right condition to do something different except of my work ;) I would try it also on my machine at home (different system, different drivers, different GPU). Maybe I would notice any difference there. Cheers, Art --- Brian R Hill <[EMAIL PROTECTED]> schrieb am Mi, 21.5.2008: > Von: Brian R Hill <[EMAIL PROTECTED]> > Betreff: Re: [osg-users] osgPPU Performance > An: [EMAIL PROTECTED], "OpenSceneGraph Users" <[email protected]> > Datum: Mittwoch, 21. Mai 2008, 22:40 > Art, > > I did use my own timings and there's no question the > application runs much > faster with stats on. Zoom, pan, rotations are all much, > much faster and > smoother with stats on..... > > I agree it shouldn't be this way. > > Try adding this to your viewer and see it you get the same > results. > > viewer->addEventHandler( new osgViewer::StatsHandler ); > > Brian > > BTW - I'm on Win XP with Nvidia Quadro FX 4600. > > [EMAIL PROTECTED] wrote: > ----- > > > To: OpenSceneGraph Users > <[email protected]> > From: Art Tevs <[EMAIL PROTECTED]> > Sent by: [EMAIL PROTECTED] > Date: 05/21/2008 04:33PM > Subject: Re: [osg-users] osgPPU Performance > > Hi Brian, > > > > > First I like to say osgPPU is really fantastic!!! > > > yes, in deed ;-) > > > > I'm using osgPPU 0.2 on OSG 2.2. I had to add my > own > > version of > > osg::Shader::readShadefFile to get it to compile/run > on osg > > 2.2. So far so > > good. I can run the examples and I've created my > own > > test application. > > > Oh, yeah, thats true. The examples do require this > functions to load the > shaders. It has changed since the last release. However the > core library, > do not need that support from the side of osg. > > > My test application normally runs at 30-40 hz. When I > added > > an > > osgViewer::StatsHandler and turn stats on (hit > 's' > > key), the performance > > jumps to 240 hz. When I turn stats off the performance > > drops back to 30-40 > > hz. > > > Hmm, this is really strange. Are you sure, that you really > got that speed. > I mean, maybe the counter just don't show exactly that > FPS which is really > running. Try to make your own frame time computations. Just > something like > this: > > int lasttime = time(NULL); > while (viewer.running()) > { > int current = time(NULL); > int difference = current - lasttime; > printf("FPS %f\n", 1000.0 / > float(difference)); > lasttime = current; > viewer.frame(); > } > > > This is just an example. Maybe you can then compute the > real performance. > Because it is really strange - why using the StatsHandler > one should got > higher performance than without it ;) > > > Best regards, > Art > > > Any ideas why? > > > > Brian > > > > > -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- > > > > > This is a PRIVATE message. If you are not the intended > > recipient, please > > delete without copying and kindly advise us by e-mail > of > > the mistake in > > delivery. NOTE: Regardless of content, this e-mail > shall > > not operate to > > bind CSC to any order or other contract unless > pursuant to > > explicit written > > agreement or government initiative expressly > permitting the > > use of e-mail > > for such purpose. > > > -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- > > > > > _______________________________________________ > > osg-users mailing list > > [email protected] > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > __________________________________________________________ > Gesendet von Yahoo! Mail. > Dem pfiffigeren Posteingang. > http://de.overview.mail.yahoo.com > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- > > This is a PRIVATE message. If you are not the intended > recipient, please > delete without copying and kindly advise us by e-mail of > the mistake in > delivery. NOTE: Regardless of content, this e-mail shall > not operate to > bind CSC to any order or other contract unless pursuant to > explicit written > agreement or government initiative expressly permitting the > use of e-mail > for such purpose. > -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- __________________________________________________________ Gesendet von Yahoo! Mail. Dem pfiffigeren Posteingang. http://de.overview.mail.yahoo.com _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- This is a PRIVATE message. If you are not the intended recipient, please delete without copying and kindly advise us by e-mail of the mistake in delivery. NOTE: Regardless of content, this e-mail shall not operate to bind CSC to any order or other contract unless pursuant to explicit written agreement or government initiative expressly permitting the use of e-mail for such purpose. -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
