While i'm getting the hang of PBR in plastics and metals, i'm having a hard time working with them when it comes to environment modeling. Does anyone have any good tutorials or articles on the subject?
My bad, i was using 0.084 in the spec value in Toolbag. You´re totally right, i was depending too much in the sliders instead of doing PBR correctly. And you´re right too with
Leaves rely on having a good SSS or translucency shader, which will depend on what engine you are working with. Bark is like any other PBR material, try to find the correct albedo value from charts and it will be very rough.