UE4 - Break Bone - Skeletal Mesh

Hey Guys,

I have an aircraft imported from blender to UE4 4.7.5 and I want to have the wing fall of on collision. But I cannot work out how to detach or break the bone.

I had considered using a destructible mesh but it did not really fit.
So I went down the path of rigging the model with wing bones.

However when I set the wing bone to ‘set all bodies below simulate physics’ as the wing bone is still connected to the body of the airplane the airplane is dragged to the ground by the simulated wing.

I have read this post https://answers.unrealengine.com/questions/59237/how-to-break-bones.html
which advises:
“When you’ve completed setting up your physics asset, go into constraint mode and select the joint(s) you want to break. Under ‘Linear Limits’, you’ll see how much the bones are allowed to get displaced from their base positions and there’s also a Linear Breakable flag. Turn it on for all bones you want to break and put in a threshold that defines the magnitude of force needed to break those joints.”

However I cannot see any constraints in constraint mode or joints to break. The bones have just been created by extruding in blender.

I have seen people asking about dismemberment which I guess is the same - however they to suggest similar to the above.

Is there a way to do this in UE4 with an armature made in blender? Will I perhaps need to model the plane in separate parts and armatures? Happy for it to be a non skeletal mesh method if there is a better way of doing a damage model for an aircraft.

Thanks,

Ok so I managed to get this working with the UE4 third person template hero exported to blender then reimported, I was able to see the constraints, even on new bones that I added. I still have been unable to get this working from a scratch project in blender which leads me to think it is in my method and that I need to take further steps within blender to set up the constraints. I have been able to move on as I can just use the exported hero file as a base to begin creating my aircraft.

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