Hi,
I am having a problem determining, what material my vehicle is on.
My goal is to spawn according particles under the vehicle.
I followed some tutorials but I seem to have overlooked something. I have no idea, what that might be and beg for your help.
The problem is: Though I followed the instructions step by step, my screen looks as follows:
Marked to the left is the surface type, which is always default. It should be *Lehm *(Clay in German, sorry).
The marked white box is the hit from the linetrace. It is under the landscape, because the landscape has some displacement.
What has happened so far:
To give you an idea, what I may have missed or done wrong, this is what happened.
First I entered all the surface types I might need under the project settings.
Then I made one *physical materials *for each surface type. Marked is the setting for the surface type, as that seems to be the relevant information.
I didn’t change the physics settings at all.
Then under *Landscape *> *Paint *I selected the Layer Info Assets and opened them.
For each *Layer Info Asset *I selected the according physical material, that has the *surface type *in it.
And finally in the *blueprint *of the vehicle Actor I generated the line trace.
The *Hit *should have delivered the surface type, which doesn’t work.
I thought to have understood, what is happening here. But there is obviously a gap, that I can’t close by myself.
Just for testing, I then set the physical material of the landscape material to ice. That didn’t change anything either. So I seem to have missed something basic.
Thank you for reading so far and I am looking forward to some hints and wild guesses 
Sincerly
Christian