It reminds me of what has been implanted in this game. https://ncase.me/sight-and-light/ I suppose that you have already got your hands on these articles, I share them in case. it in canvas no pixi but it will be cool to see this in pixidemo !  a codepen ** https://codepen.io/xno/pen/YOQZzw https://codepen.io/pandaec/pen/rzxYNB a jsfiddle ** http://jsfiddle.net/nLMTW/ http://jsfiddle.net/s2un50dp/ Shadertoy ** best performance i think https://www.shadertoy.com/view/4dfXDn