The first time I saw these layered shadows was in AngularJS Material design whiteframes ( https://material.angularjs.org/latest/demo/whiteframe https://material

The first time I saw these layered shadows was in AngularJS Material design whiteframes ( https://material.angularjs.org/latest/demo/whiteframe https://material.angularjs.org/latest/demo/whiteframe ), which have a few fixed levels of elevation. I always wondered if it would be to generate these shadows continously, and here we go. Great work!