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# SCNReferenceLoadingPolicy

Options for when to load the reference node’s content, used by the [`loadingPolicy`](/documentation/SceneKit/SCNReferenceNode/loadingPolicy) property.

```
enum SCNReferenceLoadingPolicy
```

## Topics

### Constants

[`SCNReferenceLoadingPolicyImmediate`](/documentation/SceneKit/SCNReferenceLoadingPolicy/immediate)

Load the node’s external content immediately when the reference node is unarchived.

[`SCNReferenceLoadingPolicyOnDemand`](/documentation/SceneKit/SCNReferenceLoadingPolicy/onDemand)

Load the node’s external comment only when the [`load()`](/documentation/SceneKit/SCNReferenceNode/load()) method is called.

## Relationships

### Conforms To

[`BitwiseCopyable`](/documentation/Swift/BitwiseCopyable)

[`Equatable`](/documentation/Swift/Equatable)

[`Hashable`](/documentation/Swift/Hashable)

[`Sendable`](/documentation/Swift/Sendable)

[`RawRepresentable`](/documentation/Swift/RawRepresentable)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

---

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