Hi Ralf, Only tiles that are required for the view frustum are paged in, so you shouldn't have any problems with too many tiles being loaded at high resolution.
Robert. On Fri, Aug 22, 2008 at 9:30 AM, Ralf Stokholm <[EMAIL PROTECTED]> wrote: > Hi Robert > > Im using the setLodScale and that works fine solved the huge problems i had > before. > > But based on my current understanding the range based lod scale is less than > optimal for a camera with a large zoom that will only change its > transformation in the world slowly. It will page in an enourmous amount on > textures but will only ever display a small percentage. > > This sort of camera must be perfectly suited to a frustrum or screen based > paging algorithm, and my question was if it in your oppinion was feasable in > the current architecture to integrate this as an optional pagingalgorithm. > > Based on Ulrichs answer somethin similar might already exist though? > > Brgs. > > Ralf > > 2008/8/22 Robert Osfield <[EMAIL PROTECTED]> >> >> Hi Ralf, >> >> You can use LODScale to scale the LOD ranges to fit case where you >> want to zoom in. This can be done without modifying the scene graph >> at - just by setting the osg::Camera in question i.e >> >> mycamera->setLODScale(0.25); >> >> Robert. >> >> On Fri, Aug 22, 2008 at 8:52 AM, Ralf Stokholm <[EMAIL PROTECTED]> >> wrote: >> > Hi List >> > >> > Im working on a flightsimulator and have a wery high resolution >> > orthophoto >> > based terrain. >> > >> > One of my cameras is a targetingpod(TGP) camera with a very high zoom >> > factor, to compensate for this I set the cameras lodscale to fit. This >> > all >> > works fine but the range based loading of lods could be optimised for >> > the >> > Targeting pod camera by basing it on the frustrum. The TGP will ofthen >> > focus >> > at the same spot for a loong time and will rearly have a high rate when >> > changing focus. >> > >> > So I guess my questin is if it is viable to design the a special paging >> > scheme based on not only range but also the direction of the camera. >> > >> > This could then substitute the normal range based paging for special >> > applications like my TGP camera. >> > >> > Brgs. >> > >> > Ralf Stokholm >> > Arenalogic >> > >> > _______________________________________________ >> > 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 > > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
