I need to view my object only through the wall (and this object must has his original material).
I tried to use CustomDepth - SceneDepth on Opactiy in material of the wall to do transparent place on the material behind which I can see this object. But this object also visible if it's not occluded by this wall. How can I hide object in this case?
Usecase of this: a spatial crack from where creatures attack a player.
P.S. I use Forward Shading and VR with UE4