If you store a reference to an instance of a custom class in several different fields without using, then they become separate objects when serialized. Multiple references to the same object.Inline serialization can’t represent null, instead, it replaces null with an inline object that has unassigned fields. adds some overhead but supports the following cases: The host object still stores the objects directly in its serialized data, but in a dedicated registry section. serialization: If you do specify, Unity establishes the object as a managed reference.Then, when Unity deserializes the fields, they contain different distinct objects with identical data. This means that if you store a reference to an instance of a custom class in several different fields, they become separate objects when serialized. Inline serialization: By default, Unity serializes custom classes inline by value when you don’t specify on the field that references the class.There are two ways that this can happen: inline and by. But for custom classes which don’t derive from UnityEngine.Object, Unity includes the state of the instance directly in the serialized data of the MonoBehaviour or ScriptableObject that references them. Unity serializes the instance itself independently, so it isn’t duplicated when multiple fields are assigned to the instance. When you assign an instance of a UnityEngine.Object-derived class to a field and Unity saves that field, Unity serializes the field as a reference to that instance. Use serialization callbacks, by implementing ISerializationCallbackReceiver, to perform custom serialization.įor Unity to serialize a custom class, you must ensure the class:.Wrap the nested type in a class or struct.If you want to serialize these, you have two options: Note: Unity doesn’t support serialization of multilevel types (multidimensional arrays, jagged arrays, dictionaries, and nested container types). An array of a field type mentioned above.Custom classes with the Serializable attribute.References to objects that derive from UnityEngine.Object.Custom structs with the Serializable attribute.Unity built-in types, for example, Vector2, Vector3, Rect, Matrix4x4, Color, AnimationCurve.Primitive data types (int, float, double, bool, string, etc.).Has a field type that can be serialized:.Is public, or has a SerializeField attribute.To use field serialization you must ensure that the field:
Unity when you add a script it adds a prefab how to#
The following section outlines how to use field serialization in Unity.
Serializers in Unity work directly on the fields of your C# classes rather than their properties, so there are rules that your fields must conform to to be serialized. Because of this, serialization in Unity behaves differently to serialization in other programming environments. Serializers in Unity are specifically designed to operate efficiently at runtime. This document covers the following topics: This page outlines serialization in Unity and how to optimize your project for it. How you organize data in your Unity project affects how Unity serializes that data, which can have a significant impact on the performance of your project. Serialization is the automatic process of transforming data structures or GameObject states into a format that Unity can store and reconstruct later.
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