# EditorSceneManager > Scene management in the Editor. ## Definition * **Type:** Class * **Namespace:** [UnityEditor.SceneManagement](/engine/6000.0/script-reference/unityeditor/scenemanagement.md) * **Assembly:** UnityEditor * **Inherits from:** [SceneManager](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager.md) ```csharp public sealed class EditorSceneManager : SceneManager ``` ## Static Fields | Value | Description | | ------------------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | [DefaultSceneCullingMask](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/defaultscenecullingmask.md) | Use [SceneCullingMasks.DefaultSceneCullingMask](/engine/6000.0/script-reference/unityeditor/scenemanagement/scenecullingmasks/defaultscenecullingmask.md) instead. | ## Static Properties | Property | Description | | -------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------ | | [playModeStartScene](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/playmodestartscene.md) | Loads this SceneAsset when you start Play Mode. | | [preventCrossSceneReferences](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/preventcrossscenereferences.md) | Controls whether cross-Scene references are allowed in the Editor. | | [previewSceneCount](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/previewscenecount.md) | The current amount of active preview Scenes. | ## Static Methods | Method | Description | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | [CalculateAvailableSceneCullingMask](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/calculateavailablescenecullingmask.md) | Go through all Scenes and find the smallest unused bit in the unition of all Scene culling masks. | | [ClosePreviewScene](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/closepreviewscene.md) | Closes a preview Scene created by [EditorSceneManager.NewPreviewScene](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/newpreviewscene.md) or [EditorSceneManager.OpenPreviewScene](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/openpreviewscene.md). | | [CloseScene](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/closescene.md) | Close the Scene. If removeScene flag is true, the closed Scene will also be removed from EditorSceneManager. | | [DetectCrossSceneReferences](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/detectcrossscenereferences.md) | Detects cross-Scene references in a Scene. | | [EnsureUntitledSceneHasBeenSaved](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/ensureuntitledscenehasbeensaved.md) | Shows a save dialog if an Untitled Scene exists in the current Scene manager setup. | | [GetSceneCullingMask](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/getscenecullingmask.md) | Return the culling mask set on the given Scene. | | [GetSceneManagerSetup](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/getscenemanagersetup.md) | Returns the current setup of the SceneManager. | | [IsPreviewScene](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/ispreviewscene.md) | Is the Scene a preview Scene? | | [IsPreviewSceneObject](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/ispreviewsceneobject.md) | Is this object part of a preview Scene? | | [LoadSceneAsyncInPlayMode](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/loadsceneasyncinplaymode.md) | This method allows you to load a Scene during playmode in the editor, without requiring the Scene to be included in the [Build Settings](/engine/6000.0/manual/building-and-publishing/build-settings.md) Scene list. | | [LoadSceneInPlayMode](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/loadsceneinplaymode.md) | This method allows you to load a Scene during playmode in the editor, without requiring the Scene to be included in the [Build Settings](/engine/6000.0/manual/building-and-publishing/build-settings.md) Scene list. | | [MarkAllScenesDirty](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/markallscenesdirty.md) | Mark all the loaded Scenes as modified. | | [MarkSceneDirty](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/markscenedirty.md) | Mark the specified Scene as modified. | | [MoveSceneAfter](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/movesceneafter.md) | Allows you to reorder the Scenes currently open in the Hierarchy window. Moves the source Scene so it comes after the destination Scene. | | [MoveSceneBefore](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/movescenebefore.md) | Allows you to reorder the Scenes currently open in the Hierarchy window. Moves the source Scene so it comes before the destination Scene. | | [NewPreviewScene](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/newpreviewscene.md) | Creates a new preview Scene. Any object added to a preview Scene will only be rendered in that Scene. | | [NewScene](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/newscene.md) | Create a new Scene. | | [OpenPreviewScene](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/openpreviewscene.md) | Opens a Scene Asset in a preview Scene. | | [OpenScene](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/openscene.md) | Open a Scene in the Editor. | | [RestoreSceneManagerSetup](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/restorescenemanagersetup.md) | Restore the setup of the SceneManager. | | [SaveCurrentModifiedScenesIfUserWantsTo](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/savecurrentmodifiedscenesifuserwantsto.md) | Asks the user if they want to save the current open modified Scene or Scenes in the Hierarchy. | | [SaveModifiedScenesIfUserWantsTo](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/savemodifiedscenesifuserwantsto.md) | Asks whether the modfied input Scenes should be saved. | | [SaveOpenScenes](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/saveopenscenes.md) | Save all open Scenes. | | [SaveScene](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/savescene.md) | Save a Scene. | | [SaveScenes](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/savescenes.md) | Save a list of Scenes. | | [SetSceneCullingMask](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/setscenecullingmask.md) | Set the culling mask on this scene to this value. Cameras will only render objects in Scenes that have the same bits set in their culling mask. | ## Static Events | Member | Description | | ---------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------- | | [activeSceneChangedInEditMode](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/activescenechangedineditmode.md) | Subscribe to this event to get notified when the active Scene has changed in Edit mode in the Editor. | | [newSceneCreated](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/newscenecreated.md) | This event is called after a new Scene has been created. | | [sceneClosed](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/sceneclosed.md) | This event is called after a Scene has been closed in the editor. | | [sceneClosing](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/sceneclosing.md) | This event is called before closing an open Scene after you have requested that the Scene is closed. | | [sceneDirtied](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/scenedirtied.md) | This event is called after a Scene has been modified in the editor. | | [sceneManagerSetupRestored](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/scenemanagersetuprestored.md) | This can be useful to get notified when the SceneManager's scenes are replaced with a set of new scenes from calls to . | | [sceneOpened](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/sceneopened.md) | This event is called after a Scene has been opened in the editor. | | [sceneOpening](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/sceneopening.md) | This event is called before opening an existing Scene. | | [sceneSaved](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/scenesaved.md) | This event is called after a Scene has been saved. | | [sceneSaving](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/scenesaving.md) | This event is called before a Scene is saved disk after you have requested the Scene to be saved. | ## Delegates | Delegate | Description | | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | [EditorSceneManager.NewSceneCreatedCallback](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/newscenecreatedcallback.md) | Callbacks of this type which have been added to the [EditorSceneManager.newSceneCreated](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/newscenecreated.md) event are called after a new Scene has been created. | | [EditorSceneManager.SceneClosedCallback](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/sceneclosedcallback.md) | Callbacks of this type which have been added to the [EditorSceneManager.sceneClosed](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/sceneclosed.md) event are called immediately after the Scene has been closed. | | [EditorSceneManager.SceneClosingCallback](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/sceneclosingcallback.md) | Callbacks of this type which have been added to the [EditorSceneManager.sceneClosing](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/sceneclosing.md) event are called just before a Scene is closed. | | [EditorSceneManager.SceneDirtiedCallback](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/scenedirtiedcallback.md) | Callbacks of this type which have been added to the [EditorSceneManager.sceneDirtied](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/scenedirtied.md) event are called after a Scene changes from being unmodified to being modified. | | [EditorSceneManager.SceneManagerSetupRestoredCallback](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/scenemanagersetuprestoredcallback.md) | Callbacks of this type which have been added to the [EditorSceneManager.sceneManagerSetupRestored](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/scenemanagersetuprestored.md) event are called after [EditorSceneManager.RestoreSceneManagerSetup](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/restorescenemanagersetup.md) has been called. | | [EditorSceneManager.SceneOpenedCallback](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/sceneopenedcallback.md) | Callbacks of this type which have been added to the [EditorSceneManager.sceneOpened](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/sceneopened.md) event are called after a Scene has been opened. | | [EditorSceneManager.SceneOpeningCallback](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/sceneopeningcallback.md) | Callbacks of this type which have been added to the [EditorSceneManager.sceneOpening](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/sceneopening.md) event are called just before opening a Scene. | | [EditorSceneManager.SceneSavedCallback](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/scenesavedcallback.md) | Callbacks of this type which have been added to the [EditorSceneManager.sceneSaved](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/scenesaved.md) event are called after a Scene has been saved. | | [EditorSceneManager.SceneSavingCallback](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/scenesavingcallback.md) | Callbacks of this type which have been added to the [EditorSceneManager.sceneSaving](/engine/6000.0/script-reference/unityeditor/scenemanagement/editorscenemanager/scenesaving.md) event are called just before the Scene is saved. | ## Inheritance **Inherited Members:** * [SceneManager.GetActiveScene()](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/getactivescene.md) * [SceneManager.SetActiveScene(Scene)](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/setactivescene.md) * [SceneManager.GetSceneByPath(string)](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/getscenebypath.md) * [SceneManager.GetSceneByName(string)](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/getscenebyname.md) * [SceneManager.GetSceneByBuildIndex(int)](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/getscenebybuildindex.md) * [SceneManager.GetSceneAt(int)](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/getsceneat.md) * [SceneManager.CreateScene(string, CreateSceneParameters)](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/createscene.md#createscene\(string-createsceneparameters\)) * [SceneManager.MergeScenes(Scene, Scene)](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/mergescenes.md) * [SceneManager.MoveGameObjectToScene(GameObject, Scene)](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/movegameobjecttoscene.md) * [SceneManager.MoveGameObjectsToScene(NativeArray\, Scene)](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/movegameobjectstoscene.md) * [SceneManager.CreateScene(string)](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/createscene.md#createscene\(string\)) * [SceneManager.LoadScene(string, LoadSceneMode)](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/loadscene.md#loadscene\(string-loadscenemode\)) * [SceneManager.LoadScene(string, LoadSceneParameters)](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/loadscene.md#loadscene\(string-loadsceneparameters\)) * [SceneManager.LoadScene(int, LoadSceneMode)](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/loadscene.md#loadscene\(int-loadscenemode\)) * [SceneManager.LoadScene(int, LoadSceneParameters)](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/loadscene.md#loadscene\(int-loadsceneparameters\)) * [SceneManager.LoadSceneAsync(int, LoadSceneMode)](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/loadsceneasync.md#loadsceneasync\(int-loadscenemode\)) * [SceneManager.LoadSceneAsync(int, LoadSceneParameters)](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/loadsceneasync.md#loadsceneasync\(int-loadsceneparameters\)) * [SceneManager.LoadSceneAsync(string, LoadSceneMode)](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/loadsceneasync.md#loadsceneasync\(string-loadscenemode\)) * [SceneManager.LoadSceneAsync(string, LoadSceneParameters)](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/loadsceneasync.md#loadsceneasync\(string-loadsceneparameters\)) * [SceneManager.UnloadSceneAsync(int)](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/unloadsceneasync.md#unloadsceneasync\(int\)) * [SceneManager.UnloadSceneAsync(string)](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/unloadsceneasync.md#unloadsceneasync\(string\)) * [SceneManager.UnloadSceneAsync(Scene)](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/unloadsceneasync.md#unloadsceneasync\(scene\)) * [SceneManager.UnloadSceneAsync(int, UnloadSceneOptions)](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/unloadsceneasync.md#unloadsceneasync\(int-unloadsceneoptions\)) * [SceneManager.UnloadSceneAsync(string, UnloadSceneOptions)](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/unloadsceneasync.md#unloadsceneasync\(string-unloadsceneoptions\)) * [SceneManager.UnloadSceneAsync(Scene, UnloadSceneOptions)](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/unloadsceneasync.md#unloadsceneasync\(scene-unloadsceneoptions\)) * [SceneManager.sceneCount](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/scenecount.md) * [SceneManager.sceneCountInBuildSettings](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/scenecountinbuildsettings.md) * [SceneManager.sceneLoaded](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/sceneloaded.md) * [SceneManager.sceneUnloaded](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/sceneunloaded.md) * [SceneManager.activeSceneChanged](/engine/6000.0/script-reference/unityengine/scenemanagement/scenemanager/activescenechanged.md)