Legacy Documentation: Version 5.0
Language: English
  • C#
  • JS

Script language

Select your preferred scripting language. All code snippets will be displayed in this language.


Suggest a change


Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.


Sumbission failed

For some reason your suggested change could not be submitted. Please try again in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.



Switch to Manual
public static function MarkSceneDirty(): void;
public static void MarkSceneDirty();


Explicitly mark the current opened scene as modified.

Normally, an operation resulting in a scene file change should register itself with the undo system, which automatically handles scene dirty state tracking. However, if for whatever reason you can't make the operation undoable, you can use this function to explicitly mark the scene as modified, so that the user will be prompted to save the scene when it's being closed.