at the very least, they'll have to work -hard- to get it as easy to hack as https://github.com/letoram/durden/blob/master/durden/tools/f... :-)
Because I get the impression this (not-C, not-Rust, not-stereotypically-fast) code is what's running at 60(?)fps, doing the actual deformation animation.
Nice.
Alas, the improvement that should really be made is to encode both n and n+1 in the same update and interpolate in the vertex shader, not hard here but I was lazy..