The VirtualTerrainProject CLOD I believe is aimed at terrain CLODs tend to lend themselves to flatter surfaces such as terrain and generally terrain can be relatively straightforward to create low levels of detail for due to the relationship of the posts and height fields
With arbitrary objects it becomes much more complicated and computationally expensive and very hard with any complicated or organically shaped objects, I have not come a across a useable real-time CLOD for objects If you find one or add to OSG that would be a valuable addition Q: " is there a possibility to load only a level of detail which can be computed in for example 30fps minimum?" Yes you could do this, that's how my CLODs work there is a target frame rate or max tris and the level of detail is controlled to get the target frame rate or tri's per frame etc. As to normal LOD's yes you could create a discrete LOD that changes based on target frame rates other tools kit such as Vega/Vega Prime had such stress based loding available. At this time I don't believe there is a stress based LOD change mechanism in OSG, you will have to write such a beast, which again would be a good addition to OSG IHMO, ________________________________________________________________________ Capture the magic of Christmas this year see http://www.capturethemagic.com ____________________________________________________________________________ __ Gordon Tomlinson gor...@gordontomlinson.com IM: gordon3db...@3dscenegraph.com www.vis-sim.com www.gordontomlinson.com ____________________________________________________________________________ __ -----Original Message----- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of hanne...@gmx.at Sent: Saturday, December 13, 2008 5:29 AM To: OpenSceneGraph Users Subject: Re: [osg-users] LOD: discrete or continuous? Robert Osfield wrote: > Hi Yong, > > On Fri, Dec 12, 2008 at 2:53 PM, Yong Wang <yw...@dandp.com> wrote: >> Does OSG support continuous Level of Detail? Or support only discrete LOD? > > The core OSG only includes discete LOD, but it's possible to extend > the OSG to provide CLOD. The VirtualTerrainProject has a number of > CLOD implementations that extend the OSG. does this clod work also for buildings and other objects like cars and so on? is there a possibility to load only a level of detail which can be computed in for example 30fps minimum? best regards _______________________________________________ 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
