3D body animation with javascript : Mannequin.js
Mannequin.js is a simple library of an articulated mannequin figure.
Mannequin.js is a simple library of an articulated mannequin figure. The shape of the figure and its movements are done purely in JavaScript. The graphics is implemented in Three.js.
https://boytchev.github.io/mannequin.js/
My sandbox: https://codepen.io/blogbook/pen/gOwgWyJ