Playing around with FEM in H13, the rest position in on vertices ... so tetras can be scaled independently of their neighbors, giving a kind of muscle action.

Worm isn't animated forward, all of the forward motion comes from the contraction and expansion of the "cells"

.hip file and words here: ihoudini.blogspot.com.au/2013/12/worm-locomotion-with-fem.html

Loading more stuff…

Hmm…it looks like things are taking a while to load. Try again?

Loading videos…