2d Cartoon RimLighting in Blender

[MumuMundo]

Thanks a lot for replying !

Here’s my new post, I just added some pics and attachments :

Simulate Rim or Bevel on a Flat Object's Border?

Hello, I’m using low poly flat objects to make 2D rigs. Why not use Grease Pencil ? Because it’s limited in many ways when it comes to rigging. My question is about how to simulate a bump in my flat objects to get a rim light or any other method that can give me the same effect. For example there’s this old thread where someone was trying to do the same but he didn’t explain how he did it : I tried with gradients in the nodes system but couldn’t get a gradient to follow the edges of my flat…