J-S,

Thanks for the reply.

I hadn't sat down and compared matrices yet, but I had debugged to ensure I was 
getting something.  And yes, I'm accommodating for the fact that it's a 
ModelView (and not just a Model) matrix.  I've also been using the osg_ 
attributes to this point, in lieu of the OpenGL built-in's and have been 
through most of the documentation you mentioned (though I've not looked at 
osg::RenderLeaf).

So far as your optimization tip goes, I assume you're meaning to apply the 
shader at the transform node as well?  I've been doing that sort of thing 
already, just not on my Transform nodes...  

Anyway, thanks for the sample code - I really appreciate that.

Joel

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