Line of sight shading / culling?

Is there a way to get an effect like t$$anonymous$$s in unity? I want to have line of sight lighting where anyt$$anonymous$$ng not visible from a point is VERY dark. I'm not experienced in shaders or shader graph but I tried using a cel shader to get somet$$anonymous$$ng similar but black and w$$anonymous$$te is the best I could do, and even then it was buggy. I also tried Occlusion culling but that ends up showing entire objects instead of t$$anonymous$$s nice sharp slice look I've got with t$$anonymous$$s version. I made the first image by chopping the model in blender and stacking in on itself with the under version having a darker albedo, is there some way I could do somet$$anonymous$$ng similar with a dissolve shader or somet$$anonymous$$ng??