Makes sense to me, Lupus. That's a good explanation. I like it :-) That's how I thought it would probably be done, though I wonder about where you put the centre of the sphere. I'd guess in Poser they probably put it at the local origin of each prop or body part concerned. I'm always thinking in terms of projection vectors and other mathematical things, so I couldn't have explained it as simply as you have. Nice one.

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