I wanted to find out more about this catenary business, so I Googled and found some Python code.  The attached script implements the code at the above link for a quick test, within Poser.  The catenary code looks quite simple.  Could Cage have written something like this, himself?  :lol:  :lol:  No.

Really, no.  :lol:

But the basics seem straightforward.  It seems like the real problem with applying the catenary for chain-sag would be getting the angles properly.  :unsure:

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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.