It adjusts the depth map where you walk to appear as though something footprint-shaoed has sunk into the floor, as if in thick mud. Regardless of the surface - stone? still looks like someone sank into it a bit. When they run their hand over it, the floor is actually smooth as if nothing had happened, but the depth map makes it look like it.
But people can see your footsteps cartoon style
If light travels through you then you would not leave a shadow.
Does glass leave a shadow?
Invisibility implies you are more transparent than glass…
It’s magic. It can make your footsteps visible.
It adjusts the depth map where you walk to appear as though something footprint-shaoed has sunk into the floor, as if in thick mud. Regardless of the surface - stone? still looks like someone sank into it a bit. When they run their hand over it, the floor is actually smooth as if nothing had happened, but the depth map makes it look like it.