@fenomas this is a different way of drawing a chain between two points but doesn't involve sprites. A chain between two points form a catenry curve, so I made a function that creates a  tube following a catenry path. I also played with the UV scales to get a more rope like effect. Different texture could give a chain like effect. Hope it is of some use to you. http://www.babylonjs-playground.com/#KMJCI#2