I am making a vehicle mod for an older Unreal game. I want the vehicle to be parallel to the surface it is on so it looks more realistic when going up and down hills. The Yaw of the vehicle depends the direction the car is facing and the Pitch and Roll should be determined in such a way that the vehicle remains aligned parallel to the surface. Using Trace() to get the normal of the plane the vehicle currently resides on, how can I determine the proper Pitch and Roll values for the current Yaw value?