Hi,
see also the osggis project:
http://osggis.org/
I don't think it does exactly what you want, but it shows how to create
a database that runs in parallel with the terrain database. E.g. vector
data follows the terrain and pages in with terrain data.
jp
Jan wrote:
Hi Robert,
I already thought that it is not the most efficient way to do updating every
frame, but the problem I have is that the vegetation has nothing to do with the
ground because I will create the vegetation from vegetation definition files.
These files are generated from a tool. In these files I will have some types of
vegetation like area of plants, lines of plants, single plants and so on. And
from these types I will build the vegetation db by grouping them from bottom to
top. A single tree for example is a lod node from highpoly model with one or
two low poly models down to billboard. These LOD node will be grouped(after
geometric sorting) to pagedlod nodes. and these pagedlod noded will be grouped
again until I have only one top node.
When new definition files are created the vegetation db will be reprocessed.
This makes it possible to enlarge the veg db step by step. And with geometric
sorting the types, it should be possible to balance the pagedlod nodes quite
efficient. Until now it's just my conception. But this will require to update
the vegetation positions on the fly. So any ideas :-) ?
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=11343#11343
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