Sorry for the mass, I'm really new into OSG and I just can't find some basic info. We (www.jct.ac.il) are doing some 3D non-linear implicit function research and we draw them on screen, for some reason I need to know the distance of my camera to the closest polygon/vertex and then run some math issue based on the distance.. So I thought to traverse the list of geometry created during the cull traversal and find my closest polygon/vertex. I've search the group and found nothing. Oren David
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