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Version: 4.1.0

Async Scene Operation

The IAsyncSceneOperation interface is a way to abstract non-addressable and addressable async operations. The standard workflow returns an AsyncOperation object, that does not link directly to the loaded scene, while the addressable workflow returns an AsyncOperationHandle<SceneInstance> with a direct reference to the scene.

IAsyncSceneOperation interface​

The IAsyncSceneOperation interface simply defines:

public interface IAsyncSceneOperation
{
    event Action Completed;

    float Progress { get; }
    bool IsDone { get; }
    bool HasDirectReferenceToScene { get; }

    Scene GetResult();
}

It exposes an event to notify its completion, whether it's done and its progress, much like the regular AsyncOperation and AsyncOperationHandle. Additionally, it also has a property to return whether this IAsyncSceneOperation has a direct reference to a scene, and finally a method to get the resulting scene.

Implementations​

There is one implementations of this interface for each workflow: AsyncSceneOperationStandard and AsyncSceneOperationAddressable.

AsyncSceneOperationStandardAsyncSceneOperationAddressable
Async Operation TypeAsyncOperationAsyncOperationHandle<SceneInstance>
Has Reference to Scene❌✅

Creation​

You don't need to manually create an IAsyncSceneOperation, since it's done internally by the ISceneData implementations when calling ISceneData.LoadSceneAsync and ISceneData.UnloadSceneAsync. As the ISceneData also has two implementations, it will create the correct IAsyncSceneOperation type based on its workflow.