Chipp Walters walks through how to create a great chipped paint effect for the Eevee viewport renderer in Blender 2.8.
Creating materials and shaders to work with real-time render engines is a bit of a different method than to create ones for traditional renderers. If you are producing materials and looks for Blender 2.8 Eevee, you should take a look at the tutorials that Chipp Walters is creating. Chipp’s latest has a look into creating a chipped paint effect for Eevee.
Walters walks through the setup that uses the free version of the Blender Addon, KIT OPS. It also makes use of a free KPACKS for both chipped paint and bevel effect. You can . Or if you already have the Definitely EEVEE Materials System, it’s included with it. Just update your files.