HOW TO: create this shader

[Chillkroete]

I´m trying to create these shaders from the Samsung Galaxy S3 Mini.

The first is the front material
It´s a real thin foliage under the coat layer.
I marked the hue shift. Looks like an anisotropy effect for me.

Front material

The second one is the backmaterial which looks like a mixture of plastic and metal.

Does anyone has an idea how to recreate these two materials?
The mixture of plastic and "metal" is hard to recreate.

[Terryvfx]

It's not hard at all, try to decompose the material into different stages, I can see there are two or more layers involve here.

There is the base of the material that seems to have a metal finish but if it's not metal don't go playing around with crazy values in the IOR, stay true to PBR rules, also, the key in the layer is the bump map you can achieve this in with a noise map and play with the mapping on the surface, you could also try using anisotropy.

Then there is a layer of coating on top. the right way to do this would be to make a material 100% reflective and mix it up with the base material using a falloff node.

I think that's the base recipe you can later add surface imperfections on the coating layer.