Realistic Grape Physics – Natural Collision and Flexibility Without Bones

Hello everyone,
I’ve been working on a SpeedTree grape cluster in Unreal Engine, and I’d like it to behave as realistically as possible. Specifically, I want it to have natural collision and flexibility—like when you drop a bunch of grapes onto a plate and they settle in a believable way.

My first attempt involved giving each branch bones in SpeedTree. But once imported into Unreal and set up with collision, the mesh starts shaking or flying off unpredictably. Even if I can tweak the settings, it still relies on bones, which might not be ideal for more complex or larger objects.

I’m searching for a simpler solution that doesn’t rely on skeletal meshes. Maybe Chaos Physics, cloth simulation, or something else that could handle multiple elements in one go? If anyone has encountered a similar challenge or has tips on how to achieve a natural “flop” or flexibility, I’d really appreciate your insights.

Thanks so much in advance for any help or suggestions!