[Nel] culling and transforms

[stephane.craux@voila.fr]

Hi ,
I Just took a look at nevrax code recently and
noticed that rather than transforming AABB when traversing
the scene graph , the choice was made to transform the
view frustum pyramid : it is much more cpu costly :
I didn't check if this choice was relevant : is it really ?

Ho , it dosn't seem to me that nel network code provides
peer2peer networked comm : Am I right ?
Isn't it a nice solution to very large multi-user environments ?

Great job anyway 

Stephane



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