I've one question for developers, I suppose that Corona is using some form of GTR/GGX variant for the shader model(correct me if I'm wrong). While other shading model may be still useful in selected circumstances, GTR should be fine most of the time, but one thing I really miss is a control on the highlight tail falloff. This is very important for reproducing accurate materials.
Provided you are using GTR, have you any plans for a tail falloff control?
Thanks in advance