Pass through object w/ some collision

How can I have an object that the player pawn can pass through to the other side of that object (go through no-collision) only to not be able to go back due to collision blocking them?


8 :||
player 8 can pass through : and get thru to the other side of ||, however || will block them from going back thru

Any help would be appreciated.

Use a blocking volume and set it’s collision preset to None or OverlapAll. Then place a trigger volume right after the blocking volume and change the blocking volume’s collision preset to BlockAll when the player overlaps the trigger.

Where is blocking volume in Ue4? And how can I link the blocking volume to the object in UE4?

You can find blocking volume in Modes panel on the left side of the editor, and then set up your interactions in the Level Blueprint.