Qt Quick 2 QML Scene Graph GLSL fragment shader tutorial

I had been hearing a lot about Scene Graph and Qt Quick 2 making it possible to implement whatever effects one wanted, to really make apps gorgeous, and still stay in the la-la-land of QML UI coding. What I hadn’t had was a chance to try it out myself, until recently that is. It’s been the most fun I remember having in a while, coding-wise.