Hi Robert, Thanks for your answer. But I still have some doubts here. When I load the model with osgviewer, and press key 's', it displays that the frame rate is only 34 fps. But in my application, the frame rate goes up to 60, which is kind of strange because I have some control inside the loop too. Could it be possible to have your application runs with faster frame rate than osgviewer? Thanks, Dat
On Thu, Dec 24, 2009 at 10:52 AM, Robert Osfield <robert.osfi...@gmail.com> wrote: > Hi Dat, > > On Thu, Dec 24, 2009 at 4:09 PM, Nguyen Tien Dat <tienda...@gmail.com> wrote: >> Yes, I doubt that this is the refresh rate of the monitor, not the >> real frame rate. How could I avoid the "sync-to-vblank" thing, so that >> I can have the actual frame rate? > > It *is* the actual frame rate. This is a good thing, it means that > the app is doing just fine, in visual simulators the goal that we all > strive for is hitting the display refresh rate on every single frame. > > Now... if you are doing certainly types of performance profiling you > might want to switch of vsync so you can look at the maximum frame > rates you application+database is capable of doing on that hardware + > application behavior. It should be just a quick look when > benchmarking though, as soon as the benchmarking to look at something > specific about performance you should switch vsync back on. Rember > hitting vsync on every frame is the real goal that you should be > striving for, the maximum frame rates with vsync off is really a false > goal which can lead you to make poor decisions on your database and > application. > > To switch off vysnc use your driver control panel. > > Robert. > _______________________________________________ > 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-openscenegraph.org
