Version: 2021.1
  • C#


class in UnityEditor.SceneManagement


Inherits from:SceneManagement.Stage

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The PreviewSceneStage class represents an editing context based on a single preview Scene.

You can create a custom type of Stage by implementing a class that inherits from the abstract PreviewSceneStage class. Your custom Stage should ensure any content it controls is moved into the preview Scene that the stage controls.

Your custom Stage class should implement OnOpenStage and OnCloseStage. Unity calls those methods when your stage is opened and closed; you should not call them yourself. To open a Stage of your custom type, use StageUtility.GoToStage.


sceneThe preview Scene this stage controls. Stage content should be moved into this Scene.
stageHandleSee Stage.stageHandle.

Protected Methods

OnCloseStageUnity calls this method when the Stage is closed. Classes that inherit from PreviewSceneStage should implement cleanup logic in this method.
OnOpenStageUnity calls this method when the Stage is opened. Classes that inherit from PreviewSceneStage should implement initialization logic in this method.

Inherited Members


hideFlagsShould the object be hidden, saved with the Scene or modifiable by the user?
nameThe name of the object.
assetPathThe path of the Asset file associated with the stage, relative to the project root folder.
stageHandleThe StageHandle struct for this stage.

Public Methods

GetInstanceIDGets the instance ID of the object.
ToStringReturns the name of the object.
FindComponentOfTypeReturns the first active loaded object of the given type.
FindComponentsOfTypeReturns a list of all active loaded objects of the given type.
GetCombinedSceneCullingMaskForCameraGets the Scene culling mask from this Stage.

Protected Methods

CreateHeaderContentCreates the header content for this Stage. Both the Hierarchy window header and Scene view breadcrumb bar use this content.
GetHashForStateStorageUnity calls this method to get a hash code that is used to save the state of the Stage to disk.
OnDisableSee ScriptableObject.OnDisable.
OnEnableSee ScriptableObject.OnEnable.
OnFirstTimeOpenStageInSceneViewUnity calls this method the first time a Stage is opened for a specific Asset, for a specific Scene view.
OnReturnToStageUnity calls this method when you return to a Stage that is already open.

Static Methods

DestroyRemoves a GameObject, component or asset.
DestroyImmediateDestroys the object obj immediately. You are strongly recommended to use Destroy instead.
DontDestroyOnLoadDo not destroy the target Object when loading a new Scene.
FindObjectOfTypeReturns the first active loaded object of Type type.
FindObjectsOfTypeGets a list of all loaded objects of Type type.
InstantiateClones the object original and returns the clone.
CreateInstanceCreates an instance of a scriptable object.


boolDoes the object exist?
operator !=Compares if two objects refer to a different object.
operator ==Compares two object references to see if they refer to the same object.


AwakeThis function is called when the ScriptableObject script is started.
OnDestroyThis function is called when the scriptable object will be destroyed.
OnDisableThis function is called when the scriptable object goes out of scope.
OnEnableThis function is called when the object is loaded.
OnValidateEditor-only function that Unity calls when the script is loaded or a value changes in the Inspector.
ResetReset to default values.