---
title: Automatic
product: Unity Editor
version: '7000.0'
latest_version: '7000.0'
status: This page documents version 7000.0. The latest version is 7000.0.
canonical: https://docs.unity.com/en-us/engine/7000.0/script-reference/unity/u2d/physics/physicsworld/sceneloadmode/automatic
latest_url: https://docs.unity.com/en-us/engine/7000.0/script-reference/unity/u2d/physics/physicsworld/sceneloadmode/automatic.md
last_updated: 2026-11-10
generated_at: 2026-11-13T05:23:39.519Z
locale: en-us
---

# Automatic

> Destroys the bodies and worlds whose owner does not survive the load, apart from the default world, which is always kept.

## Definition

* **Type:** Field
* **Namespace:** [Unity.U2D.Physics](/engine/7000.0/script-reference/unity/u2d/physics.md)
* **Assembly:** UnityEngine.PhysicsCore2DModule

```csharp
Automatic = 0
```

### Remarks

When nothing at all survives the load, the default world is also reset, so a scene behaves the same way every time it loads. When something survives, the default world is not reset. A script that survives the load can still hold a handle to a destroyed body, and after a reset a new body could take that body's handle, so the script would act on the wrong body.