Decided to create something similar in Unity just for fun

Can I have a look at the project ? After reading your article, I tried to implement it myself, but it was very difficult
No longer sampling sceneTexture?
I saw a video doing a similar thing in Unity so I tried replicating it in Unreal5
Your post helped with the particle system
I used only height render target and get angle from that
Can you share your project files? I’d like to learn from it