Hi Robert, We noticed another issue. When statistics bars are on - framerate slowly degrades. This happens with osgviewer dumptruck.osg for example. When stats are on draw time slowly grows and framerate starts to decrease.
Tested with latest svn (2.3.4), windows xp & vista, OSG built with VS 2008. Regards, Wojtek ----- Original Message ----- From: "Robert Osfield" <[EMAIL PROTECTED]> To: "OpenSceneGraph Users" <[email protected]> Sent: Friday, February 15, 2008 11:57 AM Subject: Re: [osg-users] Framerate vs stats? Hi J-S, On screen stats adds extra compute and GPU load to the rendering of the frame, so one would expect it reduce rather than enhance frame rate. The fact that you have an instance where the reverse happens suggest something odd happening with the OpenGL driver - something like is given the boot when the OpenGL data that the OSG send changes slightly. Try other things to jolt the driver by toggle texturing or lighting to see what happens. Robert. On Mon, Feb 4, 2008 at 3:31 PM, Jean-Sébastien Guay <[EMAIL PROTECTED]> wrote: > Hello all, > > I'm seeing something peculiar in one of our apps using OSG 2.2, and I > was wondering if someone else had seen something like this or would have > an idea what would cause it. > > The app starts and seems sluggish. Pressing 's' once shows it's running > at around 15-20 FPS. But then, if I press 's' a second time, the > framerate shoots up to >75 FPS (capped by my refresh rate) and the app > is suddenly very smooth. And it stays like that too (I can hide the > stats again or whatever, it has no significant effect on the frame rate). > > So, what could cause this? Why would showing the detailed stats screen > have that effect? I've seen cases where showing detailed stats _slowed_ > the frame rate, but this is the first time it makes it faster! > > Thanks in advance, > > J-S > > -- > ______________________________________________________ > Jean-Sebastien Guay [EMAIL PROTECTED] > http://www.cm-labs.com/ > http://whitestar02.webhop.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 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
