[deathbob]

works well for me in chrome / os x. Used the 'a' key to cut / tear.

Cool demo! I don't know much about this sort of stuff, could you talk about what's going on in the vertlet.js file a bit?

[loupeabody]

Verlet.js is a physics engine written in javascript [0]. It was posted and discussed on HN a few days ago [1]. OP didn't write it, but probably understands it very well.

[0]http://subprotocol.com/verlet-js/ [1]https://news.ycombinator.com/item?id=5580596

[jlongster]

I didn't use the aforementioned verlet.js physics engine, but that's basically what this is. Verlet integration is a simple way of modeling forces. If you are referring to the actual js code, it's asm.js-compatible javascript, which you can read more about here: http://asmjs.org/