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! 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