Thanks, Nick. I tried this out and it does work around the issue, and so far I haven't seen a significant performance hit.
This is clearly a bug, though. The lights in the .osg file are set to have a minimum 3 pixel size (I have no idea if this means 3 pixel radius, 3 pixel diameter, or what), but even if I set the small feature culling size to < 1 pixel they get culled out. That strongly indicates that the culling algorithm is using the bounding sphere to decide how many pixels the geometry will have, and in this case that's just wrong. I'd like to suggest a fix, but I'm just not familiar enough with the culling code to do that. I hope someone more experienced can take a look at it. Max On Mon, Dec 28, 2009 at 4:33 PM, Trajce Nikolov <nikolov.tra...@gmail.com> wrote: > Hi, > I did quick test here. You should disable small feature culling. Have a look > at > viewer.getCamera()->setCullingMode(osg::CullSettings:: > Nick > > http://www.linkedin.com/in/tnick > Sent from Ünalan, İstanbul, Turkey > > On Mon, Dec 28, 2009 at 11:08 PM, Max Bandazian <mbandaz...@gmail.com> > wrote: >> >> Hi, >> >> I'm having some trouble with the culling of an osgSim::LightPointNode. >> They seem to be getting culled out at some arbitrary distance, >> although I could also be misinterpreting what the class is supposed to >> do (the header is almost entirely uncommented, so...) >> >> The attached .osg file has one triangle and one light point. I'd >> expect that the lightpoint stays visible until it's either behind the >> far clipping plane or the eyepoint is more than >> sqrt(maxVisibleDistance2) away, but in reality it stops getting drawn >> when the eyepoint is ~1500 away. I'm testing in osgviewer, with >> version 2.8.2. Is this somehow the correct behavior, or is there a bug >> in the culling? >> >> Thanks, >> Max Bandazian >> >> _______________________________________________ >> 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 > > _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
