How to Prevent Geometry Collections Shattering Like Glass?

Teal High Cloud
Thu, 02 Mar 2023 15:02:59 +0000
Programming & Scripting

Hi chaps.

I’m trying to use the destruction system in UE5. I’ve been finding it very unsatisfying. In essence, my Geometry Collections either ignore damage or the entire thing falls apart when hit. Imagine you kick a door in and the whole house explodes.

Example of a wall in my current project disintegrating:

Everyone touts how great UE5 destruction is. Unfortunately most tutorials show simple objects being destroyed.

When I turn a large object into a GeoCollection, the whole thing shatters like glass once stress is applied. The simple example below shows a large castle turret getting hit by a projectile that generates a stress field. Then it falls apart.

Increasing the strength indexes of the structure doesn’t allow for localised damage, it generally prevents any damage at all.

In my current file (top image), multiple stress fields have no effect until suddenly, the whole object shatters into individual bones. I’m completely stuck.

Impact.

Start of collapse.

Tower turns into a fluid simulation.

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