Why just one standart shader and not more?

Hi, I wonder why unity just don't make more shaders for unity? I know we can create bunch of shaders with that standard shader but what about some kind of shaders like skin? I can't create realistic human skin with that standard shader

Is there any tips for creating realistic human skin in the unity5?

 

They will have to do a lot more stuff, it's just after 5.0 is released, exp. SSR, Skin Shader...

 

You can use the standard shader with surface shaders. Rather, the PBS lighting model.

 

I need a human PBS skin

 

For Skin, you'll probably have to use a custom lighting model, so you have to write your own shader. I don't see how you can use pbs shading for skin.

 

http://forum.unity3d.com/threads/lux-an-open-source-physically-based-shading-framework.235027/
try this.