# Sandbox.Scene.PhysicsMode

```csharp
ScenePhysicsMode PhysicsMode { get; set; }
```

Which physics simulation this scene runs. The physics world is built for one mode, so this
is chosen once when the scene is authored and can't be changed while the scene is running.

Declared in [Sandbox.Scene](/api/Sandbox.Scene).
Assembly: `Sandbox.Engine`.