Scenesare where you work with content in Unity. They are assets that contain all or part of a game or application. For example, you might build a simple game in a single scene, while for a more complex game, you might use one scene per level, each with its own environments, characters, obstacles, decorations, and UI(User Interface) Allows a user to interact with your application. Unity currently supports three UI systems. More info
See in Glossary. You can create any number of scenes in a project.
When you create a new project and open it for the first time, Unity opens a sample scene that contains only a CameraA component which creates an image of a particular viewpoint in your scene. The output is either drawn to the screen or captured as a texture. More info
See in Glossary and a Light.
To create a new scene from the New Scene dialog, select a template from the templates list, and click Create. For a detailed description of creating a scene this way, see Creating a new scene from the New Scene dialog.
You can also pin a template when you edit its properties. In the scene template InspectorA Unity window that displays information about the currently selected GameObject, asset or project settings, allowing you to inspect and edit the values. More info
See in Glossary, enable the Pin in New Scene Dialog option.
I have a game with three scenes, two level scenes and a menu scene. When I press play on my level scene the first time, everything works perfectly, but when I go to the menu scene and then later return to the level scene,
the references on the scripts attached to the NetworkManager GameObject were reset. On the scripts shown in the picture below, for example, all but the references that were linked to prefabs in my assets were reset.
Load that scene only once. That's usually called a loading scene. The scene just contains certain manager objects and it immediately switches to the menu scene / whatever... You would never load that first scene again.
If you want to load the scene again and you used DontDestroyOnLoad on one or more object, you have to destroy the objects manually. You can't prevent the objects from being created again since they are part of the scene. Usually al objects get destroyed automatically when you load a new scene, DontDestroyOnLoad prevents that.
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