Well... I guess it could be swapped.  It needs to just globally prevent that case from occuring, doesn't it?  So it won't reset the normals if intensity is zero, and we'll keep the regular normals.  Hmm.  Hadn't thought about it, actually....  As is, it prevents the loop from starting in the case in which it would try to do something which would crash each....

I'm babbling, aren't I?  I may have screwed the tabs up when I converted from spaces to tabs.  The else pertains to the global if at the opening. 

Oh, bugger.  I just checked, and the spaces to tabs script broke it.  Sorry.  Here's a correct one - but you'll have to suffer through spaces again.  :(

Edit.  Nope, you were right.  I had it wrong in the clean copy, too.  Huh.  Thank you.  The question is, why did the function still work when I called it, with wonky syntax like that?  Hoofa....

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Cage can be an opinionated jerk who posts without thinking.  He apologizes for this.  He's honestly not trying to be a turkeyhead.

Cage had some freebies, compatible with Poser 11 and below.  His Python scripts were saved at archive.org, along with the rest of the Morphography site, where they were hosted.