I needed some aging filters for a game and ported two webgl shaders to Phaser filters. Licensing carries over (quite liberal licensing, so I though keeping it that way), so that's why I'm releasing the filter code here:   https://github.com/jounii/phaser-filterkit   The two filters are:   Vignette, for classic vignette effect. Pretty straight port from Evan Wallace's implementation. He has tons of other great shaders too, but don't have need for those now.   FilmGrain, for a realtime (although f