Hi Tomas, On Tue, Oct 14, 2008 at 2:07 PM, Tomas Hnilica <[EMAIL PROTECTED]> wrote: > does anyone know about dynamic Level Of Details implementation in OSG?
The VirtualTerrainProject is based ontop of the OpenSceneGraph and adds a number of CLOD techniques. > There are well described algorithms like several types of Hoppe's > Progressive Meshes or Garland's Quadric Error Metrics. > I am wondering if no one made an OSG implementation (or is there some major > problem for such dynamics in scenegraph?). No problem in implementing them, but... these days CLOD is not as compelling a solution than it once was. Paged databases scale much better - for instance the combination of VirtualPlanetBuilder and OSG is currently being used to generate and view multi-Terrabyte whole earth databases. > The chunkLOD by Vladimir Vukicevic referenced on vterrain.org is not > available. chunkLOD is not a CLOD implementation, it's a paged system, since the OSG has paging built into and it has VPB to build databases you basically have something like chunkLOD right out of the box, and in system that is far more flexible. > Also the Demeter project is not available on http://www.terrainengine.com, > but I found it on http://www.tbgsoftware.com/downloads.html. Anyway it's not > a general dymamic LOD, but it's mainly for terrains. I never found Demeter to perform well so wouldn't recommend it so the lack of availability of Demeter is probably not too much of a hindrance. Robert. _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
