Hi Paul, On Thu, Jun 26, 2008 at 8:25 PM, Paul Martz <[EMAIL PROTECTED]> wrote: > Switch derives from Group, and if I create a Switch and set all its children > on, I think we can all agree that it should act just like Group. > > In the same way, since PagedLOD derives from LOD, once all its children are > loaded, I'd expect it to work just like LOD. But this isn't what I see.
Sorry but you can't make a PagedLOD work just like a LOD. Yes it's related but not identical as it has to have extra constraints to enable the ability to have fallback mechanism that is essential to PagedLOD. If you want LOD that has children that are paged in a uniform way than using LOD with ProxyNode as children is what you should do. > Attached are two files, identical except that one uses an LOD and the other > uses a PagedLOD. Run osgpick on both, and you'll see that it works fine for > the PagedLOD case, but fails to pick anything for the LOD case. > > I suspect the problem is in how IntersectionVisitor has completely different > logic for both LOD and PagedLOD, but without understanding the difference, > I'm not inclined to tinker with the code. > > What do you make of it? Is the LOD test case just a badly-formed LOD because > the max range doesn't go to zero distance? If so, again, this is a > restriction of LOD usage that I'm not aware of, nor do I understand why it > isn't also a restriction on PagedLOD usage... What I make of it is you a flogging the PagedLOD because it can handle misuse of it. Fix the database. Robert. _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
