In the details panel set preferred settings for your BP_BiDirectionalTrigger_Plane.

• Box color - custom color used for debugging and visualization of lines.

• Debug - sets the visibility of the trigger and its spline points

• Actor class -a class which will trigger overlap.

In your child or map classes you can always bind on event Delegate_On_Trigger_Overlap from BP_VolumetricTrigger.

• IsActorInisde- returns the value when actor exit or enters trigger volume.

See VIDEO.

• Additionaly, you can create child classes from BP_Volumetric_Trigger for any type of custom behaviour in your game. Like sound ambient etc.

• See VIDEO.

• Z-ax - the whole volumetric system is working only in XY axes. If box is rotated in Z-ax (like on the image), in the moment when player enters the shape calculation won't be accurate. I will look to fix this in the next update.