How to get a darkwood style lighitng system using 3D assets

hello. i see games like Darkwood,among us, or nox and i have learned how to get the con of vision to work by following this tutorial which is using 3d assets unlike among us with is 2D sprites.

i'm currently trying to do it from a top down perspective using Orthographic projection which by following the tutorial i've done just what i needed but now everything outside of the cone of vision is black andi can't figure out how to have a background like you see in games like dark wood and i want it so work like this

i've been looking around and googling and i know i'm missing something to get this to work with 3D assets and i'm not trying to do like a fog of war where is starts out black and then grays out i'm trying to already have it darken until i look in that direction then darkened again when i look away so i can give the player more of a sense of direction. Any help will be appreciated i simply just need a bump in the right direction like terminologies, unity docs, tutorials simply anything that leads me into the right direction thank you.

 

@Wcrow134
Did you figure it out?

 

yeah. i went back to episode 2 of that tutorial to redo the field of view mesh then made it transparent. then i applied the mesh to a universal renderpipeline to layer the field of view with items/enemy's to show on top of a gray filter i placed between the camera and the level. basically i mixed what i used for episode 2 of that tutorial as i'm using 3D models with how codemonkey did his but his was 2D instead.