On 7/5/06, McGlone, James C. <[EMAIL PROTECTED]> wrote:
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.
You have to load balance with big datasets, this may mean quite aggressive with LOD ranges to keep the maximum number of vertices on screen at any one time to maximum. You can use the LODScale to alter the scaling of the LOD ranges. In osgviewer '*' and '/' increase and reduce the LOD respectively so this can be a good way to interactively find out the sweet spot. Robert. _______________________________________________ osg-users mailing list [email protected] http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/
