How do I use the buoyancy system with complex collision mesh?

[Tyler (Ty_lerc)]

How do I create a collision mesh for my marketplace purchased asset? I export the static mesh to FBX.

Imported it into blender. Then removed the UCX object, its auto collision from UE5, and replaced it with a duplicated mesh of the mesh and applied a decimate modifier to remove some of the vertices.

Once imported it still auto generates collision mesh, and the UCX object doesn’t seem recognized as collision.

[ShawychodonosoR]

Hi!

The point is that the collision cannot be the shape you made

The collision must stand out from many simple shapes without external sides

Look at an example of a collision that I did

Also, there is a very convenient guideline from epics: FBX Static Mesh Pipeline | Unreal Engine 4.27 Documentation