Physics Incremental Broadphase
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With this update, you'll be able to change the physics broadphase to operate incrementally using the PhysicsStepAuthoring component and the PhysicsStep Entities components. When the feature is enabled, the bounding volume hierarchy inside the broadphase – used for spatial acceleration during collision detection and for collider queries such as ray and collider casts – is no longer built from scratch every frame, but incrementally updated from one frame to the next. This can lead to drastic performance improvements for scenes with large numbers of rigid bodies of which only a very small subset changes between frames. Changes to rigid body transformations or colliders are rare.
This feature can be enabled for dynamic bodies and static bodies separately, which makes it applicable to large and mostly static worlds with massive numbers of static rigid bodies and a reasonable number of dynamic bodies. By default, this feature will be disabled.