Collision bug

[bozdo]

No need to to do this in solver.OnPrepareFrame.

To add an actor to a solver, you just parent it under the solver transform (at any nesting level). Never call solver.AddActor manually unless you're 100% sure what you're doing, as it assumes all other conditions for the simulation to take place are met (both actor and solver have been initialized, the actor has a reference to the solver and it is below it in the scene hierarchy, etc).

kind regards

it's doesnt do much
updated code

Code:

public void Spawn(JellyObject prefab, Vector3 position, Quaternion rotation, Action<JellyObject> OnSpawn = null)
    {
        instances++;
        int id = instances;

        JellyObject jelly = Instantiate(prefab, position, rotation);
        jelly.transform.SetParent(jellyParent);

        spawnedObjects.Add(jelly);
        SetRandomColor(jelly);

        jelly.spawnID = id;

        OnSpawn?.Invoke(jelly);
    }