Destructibles: Strange behaviour with custom impact resistance

[borgedan]

I found a strange behaviour with destructibles that have custom impact resistance on but don’t have impact damage enabled. I created a simple blueprint actor that has a static mesh with physic simulation and hit event enabled. It applies very little damage on hit so that the destructible doesn’t break.

I created a destructible with higher damage treshold and low impact resistance (Im simulating destructible glass in my project)

In the image above you see the only settings I have changed on the destructible. If I know let the actor fall on the destructible mesh they don’t collide. The actor passes right through although the hit event fired!
I made a video showing that behaviour: [Youtube Link][3]

Is this a bug or am I just doing something wrong? If it isn’t a bug then I am sorry for categorising it as such
I am looking forward to hear from you guys!

Cheers,
Daniel

[borgedan]

It has the same behaviour in 4.15

[borgedan]

I found out what the problem was for my project: I simply had to put a higher value for the custom resistance than 1, so that flying objects collide with the glass wall if they don’t make enough damage. I guess a very low value just doesn’t generate nearly any resistance at all.