Normal Decal Material Tweet

[HandcraftedMedia]

Would be really cool if there was a way to do normal decals like you can in Unreal Engine.
Here a link to how that looks like in UE: https://www.youtube.com/watch?v=VqluxWhS3Zo
I think it wouldn't even need to have a projection element as you could handle that in the DCC, but just the ability to have a material that's basically transparent except for it's normals so you can affect the normals of the texture behind the decal.