[LibGDX] Edges on 3D models

I’m starting to work with 3d and I have an aesthetic that I’m trying to reach. I want to be able to have my models show with extra emphasis on the edges of the models, like in Cel Shading, but without the toonish lighting. I haven’t been able to find very much info on this or if this is even possible with LibGDX. If anyone has some insight on this, it would be much appreciated.