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DestructibleMesh - Do Not Fracture doesn't work?

Simply put, the 'Do not fracture' doesn't work on the chunks.

I have icicles that you can break, and I want the base piece to stay stuck in the wall while the rest breaks off. No matter what I do, the entire piece of ice shatters and pops out of the wall.

How can I get the one chunk to stay put?

Thanks

Product Version: UE 4.9
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asked Nov 11 '15 at 09:09 PM in Using UE4

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Juice-Tin
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Hi Juice-Tin,

In order for the chunks to be supported you will need to set a support depth of least 1. This will allow any chunks at that level to only break free when they receive enough damage to do so. If you want the pieces that are in contact with another surface or overlapping, like the base of the icicle then you would also need to enable the flag for World Support.

If you're noticing that a single hit is causing all the chunks to break free and fall then you have four options.

  • Increase the the damage threshold

  • Decrease the Damage Spread

  • Set a Damage cap

  • Select chunks for the base and then in the Chunk Parameters tab set them to Do Not Fracture.

That should be enough to get you started.

I also have this Destructible Troubleshooting and Tips Guide on the Wiki that has a lot of common questions people run into when using Destructible Meshes.

I hope this helps.

Tim

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answered Nov 12 '15 at 05:26 PM

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Tim Hobson ♦♦ STAFF
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avatar image Juice-Tin Nov 13 '15 at 11:46 PM

The 'Do not fracture' option doesn't do anything at all for me, but I will try more with the other options you suggested. Thanks!

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