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The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). Additional documentation and release notes are available at [Multiplayer Documentation](https://docs-multiplayer.unity3d.com). ## [1.4.0] - 2023-04-10 ### Added - Added a way to access the GlobalObjectIdHash via PrefabIdHash for use in the Connection Approval Callback. (#2437) - Added `OnServerStarted` and `OnServerStopped` events that will trigger only on the server (or host player) to notify that the server just started or is no longer active (#2420) - Added `OnClientStarted` and `OnClientStopped` events that will trigger only on the client (or host player) to notify that the client just started or is no longer active (#2420) - Added `NetworkTransform.UseHalfFloatPrecision` property that, when enabled, will use half float values for position, rotation, and scale. This yields a 50% bandwidth savings a the cost of precision. (#2388) - Added `NetworkTransform.UseQuaternionSynchronization` property that, when enabled, will synchronize the entire quaternion. (#2388) - Added `NetworkTransform.UseQuaternionCompression` property that, when enabled, will use a smallest three implementation reducing a full quaternion synchronization update to the size of an unsigned integer. (#2388) - Added `NetworkTransform.SlerpPosition` property that, when enabled along with interpolation being enabled, will interpolate using `Vector3.Slerp`. (#2388) - Added `BufferedLinearInterpolatorVector3` that replaces the float version, is now used by `NetworkTransform`, and provides the ability to enable or disable `Slerp`. (#2388) - Added `HalfVector3` used for scale when half float precision is enabled. (#2388) - Added `HalfVector4` used for rotation when half float precision and quaternion synchronization is enabled. (#2388) - Added `HalfVector3DeltaPosition` used for position when half float precision is enabled. This handles loss in position precision by updating only the delta position as opposed to the full position. (#2388) - Added `NetworkTransform.GetSpaceRelativePosition` and `NetworkTransform.GetSpaceRelativeRotation` helper methods to return the proper values depending upon whether local or world space. (#2388) - Added `NetworkTransform.OnAuthorityPushTransformState` virtual method that is invoked just prior to sending the `NetworkTransformState` to non-authoritative instances. This provides users with the ability to obtain more precise delta values for prediction related calculations. (#2388) - Added `NetworkTransform.OnNetworkTransformStateUpdated` virtual method that is invoked just after the authoritative `NetworkTransformState` is applied. This provides users with the ability to obtain more precise delta values for prediction related calculations. (#2388) - Added `NetworkTransform.OnInitialize`virtual method that is invoked after the `NetworkTransform` has been initialized or re-initialized when ownership changes. This provides for a way to make adjustments when `NetworkTransform` is initialized (i.e. resetting client prediction etc) (#2388) - Added `NetworkObject.SynchronizeTransform` property (default is true) that provides users with another way to help with bandwidth optimizations where, when set to false, the `NetworkObject`'s associated transform will not be included when spawning and/or synchronizing late joining players. (#2388) - Added `NetworkSceneManager.ActiveSceneSynchronizationEnabled` property, disabled by default, that enables client synchronization of server-side active scene changes. (#2383) - Added `NetworkObject.ActiveSceneSynchronization`, disabled by default, that will automatically migrate a `NetworkObject` to a newly assigned active scene. (#2383) - Added `NetworkObject.SceneMigrationSynchronization`, enabled by default, that will synchronize client(s) when a `NetworkObject` is migrated into a new scene on the server side via `SceneManager.MoveGameObjectToScene`. (#2383) ### Changed - Made sure the `CheckObjectVisibility` delegate is checked and applied, upon `NetworkShow` attempt. Found while supporting (#2454), although this is not a fix for this (already fixed) issue. (#2463) - Changed `NetworkTransform` authority handles delta checks on each new network tick and no longer consumes processing cycles checking for deltas for all frames in-between ticks. (#2388) - Changed the `NetworkTransformState` structure is now public and now has public methods that provide access to key properties of the `NetworkTransformState` structure. (#2388) - Changed `NetworkTransform` interpolation adjusts its interpolation "ticks ago" to be 2 ticks latent if it is owner authoritative and the instance is not the server or 1 tick latent if the instance is the server and/or is server authoritative. (#2388) - Updated `NetworkSceneManager` to migrate dynamically spawned `NetworkObject`s with `DestroyWithScene` set to false into the active scene if their current scene is unloaded. (#2383) - Updated the server to synchronize its local `NetworkSceneManager.ClientSynchronizationMode` during the initial client synchronization. (#2383) ### Fixed - Fixed issue where during client synchronization the synchronizing client could receive a ObjectSceneChanged message before the client-side NetworkObject instance had been instantiated and spawned. (#2502) - Fixed issue where `NetworkAnimator` was building client RPC parameters to exclude the host from sending itself messages but was not including it in the ClientRpc parameters. (#2492) - Fixed issue where `NetworkAnimator` was not properly detecting and synchronizing cross fade initiated transitions. (#2481) - Fixed issue where `NetworkAnimator` was not properly synchronizing animation state updates. (#2481) - Fixed float NetworkVariables not being rendered properly in the inspector of NetworkObjects. (#2441) - Fixed an issue where Named Message Handlers could remove themselves causing an exception when the metrics tried to access the name of the message.(#2426) - Fixed registry of public `NetworkVariable`s in derived `NetworkBehaviour`s (#2423) - Fixed issue where runtime association of `Animator` properties to `AnimationCurve`s would cause `NetworkAnimator` to attempt to update those changes. (#2416) - Fixed issue where `NetworkAnimator` would not check if its associated `Animator` was valid during serialization and would spam exceptions in the editor console. (#2416) - Fixed issue with a child's rotation rolling over when interpolation is enabled on a `NetworkTransform`. Now using half precision or full quaternion synchronization will always update all axis. (#2388) - Fixed issue where `NetworkTransform` was not setting the teleport flag when the `NetworkTransform.InLocalSpace` value changed. This issue only impacted `NetworkTransform` when interpolation was enabled. (#2388) - Fixed issue when the `NetworkSceneManager.ClientSynchronizationMode` is `LoadSceneMode.Additive` and the server changes the currently active scene prior to a client connecting then upon a client connecting and being synchronized the NetworkSceneManager would clear its internal ScenePlacedObjects list that could already be populated. (#2383) - Fixed issue where a client would load duplicate scenes of already preloaded scenes during the initial client synchronization and `NetworkSceneManager.ClientSynchronizationMode` was set to `LoadSceneMode.Additive`. (#2383)
Netcode for GameObjects
Netcode for GameObjects is a Unity package that provides networking capabilities to GameObject & MonoBehaviour workflows. The framework is interoperable with many low-level transports, including the official Unity Transport Package.
Getting Started
Visit the Multiplayer Docs Site for package & API documentation, as well as information about several samples which leverage the Netcode for GameObjects package.
You can also jump right into our Hello World guide for a taste of how to use the framework for basic networked tasks.
Community and Feedback
For general questions, networking advice or discussions about Netcode for GameObjects, please join our Discord Community or create a post in the Unity Multiplayer Forum.