How to highlight the edges of a GLB model in CesiumJS?

[Genis Lin]

Hi,
I’m using CesiumJS and want to highlight the edges of a GLB model, similar to an outline or wireframe effect.
Is there a simple way to show the edges of the model in Cesium?
Maybe using a shader, post-processing, or any other method?
I’m loading a standard GLB model into my scene, and it renders fine — I just want to make the edges more visible for better clarity.

If anyone has done this before or knows a good way, I’d appreciate your help.
Thanks!