Hey all,
I was having issues with this as well, as I needed my displacement map to be applied to a sphere but found that it would go off in the world direction instead of following the normals of my object.
Like Ehamloptiran said, you just need to multiply the object normals to the map. I just had to do some quick digging and found the node I wanted in the material editor. So for others who need something similar, it’s called VertexNormalWS.
