Destructibles only able to break once from impact damage

Hi there! Currently I have a large wall with about 200 chunks that I am having some issues with. I’m trying to set it up such that I can drive a vehicle through it, leaving behind a hole, but also so I can drive around and hit it again, leaving many more holes. The issue is this: I can drive through once leaving a car sized hole in the wall but as soon as I try to break the wall again in another spot, the car just slams into it without breaking any more chunks. I have world support on, simulate physics off, support layer set to one, I don’t know what else to do.

Thank you.

So the issue wasn’t the destructible at all. As it turns out, you need to have “Simulation Generates Hit Events” for any object you want to be able to do impact damage to your destructible. While I had this applied to the root mesh of the vehicle (Sedan from the demo), I discovered that the root mesh never detects any collisions from the collision boxes on the car that are created in the physics assets which is kind of hidden away.

Solution: Ensure “Simulation Generates Hit Events” is enabled on your root object/mesh. Then, check to see if you have any physics assets being applied to the object/mesh, and apply the same thing.

For the Sedan in the demo level, there is a physics asset being applied. To find/edit it, in the inspector you should see a mesh section with “Sedan_SkelMesh” applied for the skeletal mesh. Click the drop down menu, and select “Edit”. This should bring up a new window. Scroll down the Mesh Details pane until you see the physics section. Under Physics Asset, you should see “Sedan_PhysicsAsset”. Again, select the drop down menu, click edit. This is the final step! In the Hierarchy pane, select “Vehicle_Base”. The Details pane should update- scroll down to collision, select “Simulation Generates Hit Events” and if you want, turn on Continuous Collision Detection (CCD). Save, exit, save, exit, save, exit.

BOOM! Done.

Anyone with similar issues please contact me and I will try to help as much as I can.

Thanks. I had a similar problem with a destructible mesh not being affected by projectiles. After I read this I turned on simulate physics and CCD in the projectile collision sphere. Works like a charm now.

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