Hi Loinel, Performance when using the preciptiation effects is heavily dependant on fill limit as overdraw is so high. Ideally it'd be possible to disable FSAA when doing precipitation effects as the motion and texture blending pretty well do away with any noticable effect of FSAA on the particles themselves, but alas I don't know of a way of achieving this with present drivers.
Regardless though, I'd say all your results are just fine - all well about 100Hz save for 8xS. As all you ever need to reach is your display systems refresh rate having really high frame rates with vysnc is not in any way useful for a final sim that has vsync on. Robert. On Thu, Mar 13, 2008 at 1:32 PM, Lionel Lagarde <[EMAIL PROTECTED]> wrote: > Hi, > > I'm adding precipitations in our application and I'm very surprised by > the performance differences when I use different antialiasing settings. > > Configuration: Core 2 duo 6400 / GeForce 7900 GTX > > I run the command "osgprecipitation cow.osg" > > No AA: 587 Hz (initial view) 2380 Hz (viewed from above) > 2x: 554 Hz (initial view) 2046 Hz (viewed from above) > 4x: 480 Hz (initial view) 1530 Hz (viewed from above) > 8xS: 2 Hz (initial view) 440 Hz (viewed from above) > > The anisotropic filtering also reduce the performances. > > Can someone confirm these results. > > Why does the camera position impact the frame rate ? > Is there some "things" that are not rendered when the raindrops are seen > from above ? > > _______________________________________________ > 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
