I need help
“We” too.. what exactly did you do already and what’s the actual problem ??
If you want to add something like this into some game then this might be even some screenspace effect and so “done” by any game engine..
Or similar for some possible composition ()psot production") onto a render..
The effect looks like something regular mesh shape could accomplish. Therefore, try material with “normal falloff” effect. In Blender, such thing is done using Layer Weight or Fresnel node. https://youtu.be/BM-HtHglYm8?si=uaMhdPH70tHkG5Qz