What is TireFriction in FTireShaderInput?

In the documentation for FTireShaderInput it says that the TireFriction is the “Friction value of the tire contact”. Does that mean its the friction between the tire and whatever surface it is on or is it just the friction of the tire?

Also is this variable accessible in a custom pathfollowing component in C++?

Any help is appreciated!

Did you get an answer for this? I am looking for the same solution

nope, sorry. You might be able to get this value by making a getter in your WheeledVehicle class and calling it from the pathfollowing component tho.