Unreal Engine 4 Scripting with C++ Cookbook

Collision – letting objects pass through one another using Ignore

Collision settings are fairly easy to get hold of. There are three classes of intersection for collisions:

• Ignore: Collisions that pass through each other without any notification.
• Overlap: Collisions that trigger the OnBeginOverlap and OnEndOverlap events. Interpenetration of objects with an Overlap setting is allowed.
• Block: Collisions that prevent all interpenetration, and prevent objects from overlapping each other at all.

Objects are classed into one of many Object Type. The Collision settings for a particular Blueprint's Component allow you to class the object as an Object Type of your choice as well as to specify how that object collides with all other objects of all other types. ...