Hi everyone, after few months spent tweaking this multishader I decided to release it for the public. It's been used for architectural projects mainly. The blend file contains the shader, a basic camera rig with focus object and a color correction panel for calibration.
EDIT: the shader has been updated with a carpaint and a few procedural nodes. Hope you like. you can find it also on my website www.crazyrobinhood.org
You can easily create PBR Dielectrics, Metals, Dispersion glasses, Volume glasses and SSS materials. In the blend file you can find a text file with short instructions.
Many thanks to the Blender Foundation, Bartek Skroupa, CynicatPro, Creativeshrimp and many others from the amazing Blender community who made their knowledge public. The NK-Multishader is greatly based on their tutorials and their huge effort in sharing culture.