I’m trying to create a building using geometry collections but am facing problems.
What is particularly annoying is that stacked geometry collections collapse easily. As the number of fractures increases, the building becomes weaker and even a small impact can destroy the entire building.
If i use an anchor field to prevent this, the area covered by the field will become indestructible and the debris will float in the air.
I looked for tutorial videos but all I could find were videos on destroying single meshes, or how to 3D model entire buildings into giant collections to destroy.
How can I create buildings using any combination of geometry collections?
Hi @Extrahdmi ,
I did a bit of research based on what you mentioned and found something that I think could help with what you’re trying to do—creating modular destructible buildings using Geometry Collections in Unreal.
This tutorial from the Epic Games community shows how to build a modular destruction system from scratch:
What’s great about it is that it doesn’t focus on just blowing up a single giant mesh (like most of the videos out there). Instead, it teaches you how to build buildings from individual modular pieces like walls and columns. Each one becomes its own Geometry Collection, and the tutorial also shows how to use Anchor Fields in specific spots ,like the base of support pillars to prevent, the whole thing from collapsing or having debris floating in the air after destruction. It also covers how to set up clustering and tweak the physics settings to make the whole structure more stable, even when you’re combining lots of parts.
In case you want to dig a little deeper, here’s the official Chaos Destruction documentation as well:
https://dev.epicgames.com/documentation/en-us/unreal-engine/chaos-destruction-in-unreal-engine?application_version=5.0
That should give you everything you need to start building modular, realistically destructible structures without the issues you were running into.
Hope it helps!
Hello.
I know this video very well. I’ve watched it many times.
However, this is a model that has been pre-assembled in Blender, imported as individual meshes, and then fractured, which is a little different from what I want to do.
What I want to do is to fracture modular pieces, like the 400x400 Wall that comes with the starter content, and then combine them later to create a building.