Thank you Robert, v-sync is off, I get around 90-100 FPS, when enabled OSG stats I get 3.4 for "cull" and 6.4 for "draw", also in this case the frame rate basically does not change but floats around the same range 90-100. Since the performances are already very good I wont dig more into the "problem", which might not be a "problem" but rather a lack of understanding of what's going on.
Another thing: I instance a single Geometry (my quad billboard) then add it 4000 times to a Billboard node. I looked in the archives for "quadtree" but coulnd't find any info. How can I use the quadtrees you mentioned with OSG? Did you mean quadtrees to speedup frustum culling or a particular parent/child layout for OSG nodes? Thanks, Michele On Fri, May 23, 2008 at 4:05 PM, Robert Osfield <[EMAIL PROTECTED]> wrote: > Hi Michele, > > The OSG does view frustum culling by default, you have to explictly > turn it off. The same applies to small feature culling it's on by > default. > > As for your FPS not changing when objects move off screen, is vsync? > > Hows about enabling OSG stats? This will tell you what the bottleneck. > > Also with your scene graph, make sure you build a quad tree to store > all those billboards, and avoid large flat node contains lots of > children/drawables. > > Robert. > > On Fri, May 23, 2008 at 3:01 PM, Michele Bosi <[EMAIL PROTECTED]> wrote: >> Hi all, >> I have a scene with 4000 billboarded quads to display and I just >> noticed that OSG might not perform frustum culling on them since Fraps >> tells me that the FPS remains the same even when many of those quads >> are out of the screen. >> >> Is there a way to enable frustum culling? or maybe OSG doesn't perform >> frustum culling for small/simple objects? >> >> I am currently using OSG 2.2 / WinXP / MinGW and the application I am >> using manages the camera with a Trackball manipulator, in case this >> has anything to do with the problem... >> >> Thanks, >> Michele >> _______________________________________________ >> 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
