[osg-users] Anyone knows about algorithm of osgSim::Overlay?

[张凌寒]

Hi all,
        Recently I'm working at the function of draping vectors to the terrain. I read the source code of osgEarth1.3 which implements the function and found it uses class osgSim::Overlay. However, when I dive into osgSim::Overlay, I can't really get what this class wants to do. The only thing I know about osgSim::Overlay is that it captures a texture and puts it on the terrain. Does anyone know about the algorithm of this class ?  Or is there some paper which explains the algorithm? Please help me know.


Thank you.
Huang


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