Hi,
I'm interested in knowing how is builded the scene graph by the "osgdem"
program. To this end, last week I'd reading the "Virtual Planet Builder" code
but I still have some doubts, specifically when the PAGED_LOD mode is used.
On the one hand, I'm able to follow how is linked the scene graph when the
simple LOD mode is set. If I'm not wrong it's instantiated a new LOD node which
in turn is composed of both a geometry node and a group of descendants (if they
are). Likewise its descendants are LODs node.
However, when the PAGED_LOD mode is set I don't catch when nodes are linked
among them. That is, after reading the code it gives me the impression that all
nodes are written in the filesystem but I cannot see where they are linked adn
so where the scenegraph is builded. Likely, there is something about the
PAGED_LOD concept that I don't understand yet because I don't know either why
the QuadMap is used for the PAGED_LOD nodes instead of the CompositeDestination
graph.
I'll appreciate any help.
Thanks in advance,
---------------------------------
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