Robert O. says:
>PagedLOD only makes sense if you can LOD the data, which is an >interesting issue with point clouds. How best create LODs? One >property of LOD's in the OSG is that the ranges can overlap so two LOD >children can be one at once, so you can in sequence add layers of >points to keep up the number of vertices, this way you wouldn't ever >have to repear any vertices. I did this, split the input point cloud into 3 LODs with the number of points in the ratio 1:2:4, each of which is tiled into 100m squares, and overlapped the LOD ranges so that the smallest LOD is always visible and the others are added in as the viewpoint gets closer. Works well up to 70 million points or so, then I seem to hit some variable size limit or something that I haven't had a chance to chase down. J. Chris McGlone, Ph.D., CP SAIC 5180 Parkstone Drive, Suite 200 Chantilly, VA 20151 703-227-8030 703-802-9440 (fax) [EMAIL PROTECTED] _______________________________________________ osg-users mailing list [email protected] http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/
