I am a big fan of pixi.js (http://www.pixijs.com http://www.pixijs.com). I haven't explored its "erasing" capabilities, but it is a great library for performan

I am a big fan of pixi.js (http://www.pixijs.com http://www.pixijs.com). I haven't explored its "erasing" capabilities, but it is a great library for performant 2d graphics programming in the browser.