Hi Lalit, for a similar problem I've added a CullCullback on the node I'm interested in (the geode in your case). The custom callback notifies me when it is invoked, which means that the node is currently in the view frustum.
AFAIK the cull visit acts on the geode bounding sphere, so if you need more precise control you better go at drawables level, or you can customize the way the bounding volume is computed. Another alternative might be disable the default culling test and implement your own test in the custom cull callback. Hope this helps, Ricky On Fri, Nov 19, 2010 at 14:06, Lalit Manchwari <[email protected]>wrote: > Hi, > > I am working with LiDAR data. Its a huge data containing the information of > X, Y, Z co-ordinates. I have divided this data into spatial blocks and > making a > Geode for every block. I want to increase the density of point cloud as the > user zoom in the data. > I want to know how can I identify that which Geode or block is inside or > outside the viewport. > > Thank you! > > Cheers, > Lalit > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=33861#33861 > > > > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >
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