Hi,

I have been experimenting with Shadows lately for a pretty large scene I have. 
After reading some posts on the forum I realized I have to go with LiSPSM since 
it was optimized for large scenes.

So I setup LiSPSM, passed in the variables and rendering using shaders. 
Everything seems to be working fine, until I noticed that LiSPSM doesn't seem 
to cull the objects in my scene graph. Even when I am viewing a building or two 
my triangle count is pretty high. If I turn off the shadows I get a much better 
performance and triangle count drops down to whatever there is on the screen.

I have my ShadowScene as a root node, and the models are divided into regions 
and added as children to their respective  regional group.

I noticed in the LiSPSM there is a setMaxFarPlane() parameter. When I set a 
value it seems to only display shadows up to the far plane I specified, however 
the triangle count is still pretty high, almost as much as the entire scene.

Am I missing something to make Shadows cull the models?

Thank you!

Ramy

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http://forum.openscenegraph.org/viewtopic.php?p=33374#33374





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