Collision Models?

Hi, should I generate collision models in ue4 or in other program, I read on the forum long time ago that collision mesh generated in ue4 are too heavy for rendering and that i should make it in Blender.
Is it true?

Collision meshes made in UE can be as heavy or as light as you want, so that shouldn’t be a deciding factor.

See Collision Response Reference in Unreal Engine | Unreal Engine 5.2 Documentation for instructions.

So, no, it’s not necessarily something you need to do externally. It’s more about what you prefer, really.

thanks man