со скриптом ФПС около ~85, не сильная разница, но работает, при этом я ничего не потерял. На карте 50х50x5 он повырезал около 300 элементов, которые не рисуются, но существуют.

тоже самое при hit.collider == terra (это переменная, ссылающаяся на террейн)

Moving Static Colliders

Moving Static Colliders will be a lot less expensive. A Static Collider is just a gameobject with a collider component on it, but without a Rigidbody component. Previously, since the SDK assumed that Static Colliders aren’t moved, moving a Static Collider would trigger an expensive AABB tree rebuild that affected overall performance badly.

In Unity 5, we’ll use the same data structure to handle the movement of both dynamic and static colliders. Unfortunately, we’ll lose the benefit of Static Colliders consuming less memory than dynamic ones. However, right now, the cost associated with moving Static Colliders is one of the top 3 causes of performance issues in Unity games. We wanted to change that.

Понял, заменил переменную, но здоровье кончается мгновенно