Remove Unwanted Fragments from Geometry Collection?

When the Geometry Collection Actor breaks apart, the fragments fall to the ground and cause performance issues, rather than just from the destruction itself.

I fractured a static mesh building using the Fracture tool in UE5 and recorded the simulation using Chaos Cache Manager to use it in Sequencer. However, as the debris hits the ground, the system becomes heavily burdened.

What I’m looking for is a way to select and delete specific fragments directly from the Geometry Collection Actor — ideally the small or unnecessary pieces — while still keeping the overall destruction effect.

Is there a way to do this?


Hi

there’s two way to get pieces to be “removed” after a while

  • remove on break
  • remove on sleep

Remove on break if the one that give you more fine control
You can define per piece how much time will pass before the piece start be removed

Go to the Fracture Editor
Go to Utilities tool section
Click on Set removal-on-break parameters icon
then select the pieces you need and set the parameters according to what you need and apply them

(See screenshot below)

The remove on sleep parameters is directly on the asset properties

I hope this helps