Outline Efficiently

Hi,

I would like to implement in my game an outline over some enemies where it would represent the HP of the mob.
My models have full pbr texture on them.

What would be an ideal and more optimized solution to get an outline rendered on my models and that I still have my pbr channels for the texture.


Thank you!

 

Found a post here in the forums about a Custom Standard shader merged with the toon shader to have the Outline feature. So far it works really well.... but the custom for some reason does not have the Smoothness slider.
https://forum.unity3d.com/threads/adding-an-outline-to-unity-5-standard-shader.286554/

Anyone with the skills to give me a hand?

Thank you!