想做遊戲但不知從哪開始，Unity能幫你什麼

What's new in this version:

Features
- Analytics: Added support for fetching GoogleAdsId via new API RequestAdvertisingIdentifierAsync.
- tvOS: Added Apple TV support. Look for tvOS build target to try it. Enjoy!
- VR: Added support for VR Application Focus. All VR Players are now forced to Run in the background.

Improvements
- Graphics: Optimized performance of setting up shader blend/depth/raster/stencil states. This is mostly visible when using deferred rendering.
- Graphics: Added client/worker multithreaded rendering support to OS X Metal.
- IL2CPP: Added support for the MethodImplOptions.NoInlining option to prevent methods in the generated C++ code from being inlined.
- iOS: Use new Game Center APIs when possible.
- JsonUtility: Serialize Color32 fields as separate RGBA values instead of a binary blob.
- Networking: Added a warning for NetworkIdentity on child game objects.
- Networking: Added dontListen flag to NetworkServer. This is useful when running in single-player or offline mode, but as a Network Host. RuntimeInitializeOnLoad now fires more consistently when entering playmode in the Editor and playing at Runtime.
- SceneManagement: Added SceneManager.UnloadScene(Scene) making it easier to unload a scene if you already have a reference to it.
- Substance: Substance textures cached to disk/flash are now LZ4-compressed, old caches are discarded.
- Substance: SubstanceImporter.ExportBitmaps is now public.
- Substance: ExportPreset was added to the ProceduralMaterialInspector's context menu.
- Substance: When importing a SBSAR file, the metallic workflow is now picked up by default if the material has the right outputs, even if it also has the right outputs for the specular workflow. Previously, if the material had the right outputs for the metallic and the specular workflows, then the specular workflow would be selected.
- VR: Optimized Oculus to start CPU work for next frame while Rendering the current frame.

Changes
- Samsung TV: Added Ignore BG Alpha Clear checkbox to Resolution section of Samsung TV player settings. This will disable the clearing of the alpha value for the background fill allowing for blending between Unity's render layer and the layer behind.

Fixes
- Relevant fixes from Unity 5.2.4 are also included into 5.3.1.
- Android: AndroidJNI - fixed crash when no params passed to AndroidJavaProxy with AndroidJNIHelper.debug set to true.
- Android: Buildpipe - don't run dex if exporting the project.
- Android: Buildpipe - don't unpack AARs if exporting the project.
- Android: Fixed 5.3 performance regression in dynamic batching.
- Android: Immersive - fixed black bar in the bottom on Android M and L.
- Android: Workaround for OpenGL ES 3.0 shader compiler issues on Adreno 3xx.
- Animation: Fixed 1st frame of Animation displaying default state of the object.
- Animation: Fixed AnimationClip dependency collection not working for AnimatorControllers.
- Core: Fixed multithreading related memory allocations; removes a number of JobAlloc.Overflow instances in profiler.
- Editor: Fix for prefab modifications making the scene dirty immediately after loading.
- Editor: Fixed restoring Hierarchy View after exiting the Avatar Editor or running Editor tests.
- Editor: Stopped exponential growth of the undo stack when undo-redoing selection changes.
- Editor Webview UI: Right click in text input would show a blank menu on windows 8 and 10.
- GI: Fixed a problem where Final Gather was always being recomputed.
- GI: Remove CPU cost of Enligten Post Update when there is no realtime GI.
- HomeWindow: Fixed Home Window closing after sign-in if cache is empty.
- HomeWindow: Fixed black screen on 32-bit Windows.
- IL2CPP: Avoid duplicate data files in iOS packages.
- IL2CPP: Fixed an issue which caused "callback cannot take parameters" error message if there was a DLL in the project that inherited from animation state machine classes, but project did not use animation.
- iOS: Disable the toggle for 'Show Unity Splash Screen' if user does not have a Pro license.
- iOS: Don't crash when social platform API is used incorrectly.
- iOS: Don't incorrectly cache social platform local user auth status.
- iOS: Ensure that game center authentication callback is called once.
- iOS: Fixed achievement completion banner display.
- iOS: Fixed crash on iOS 6.0 devices.
- iOS: Fixed hidden portion of multiline text area so users can view the last line of text.
- iOS: Fixed ODR progress reporting.
- iOS: Fixed WWW connection redirect functionality.
- iOS: Don't override iPod music when corresponding player setting is not set.
- iOS: Send focus events when entering and exiting game center dialogs.
- iOS: Update remote notification callback API.
- JsonUtility: Fixed memory leak when FromJson() throws exceptions.
- Linux: Fixed crash on shutdown.
- Linux: Work around crash when FMOD can't detect available audio drivers.
- Mecanim: Fixed an error in the Animator inspector when selecting multiple files.
- Mecanim: Fixed Animator.CrossFade failing when already crossfading.
- Mecanim: Fixed crash when deleting game object with rendering effect during play mode.
- Mecanim: Fixed Euler angles not being displayed as animated in the transform inspector.
- MonoDevelop: Display error dialog if GTK# is not installed on Windows.
- MonoDevelop: Fixed issue with MonoDevelop not starting on OSX if installed in /Applications and user is not admin.
- Networking: Added check for too-large buffer.
- Networking: Added error message when [SyncEvent] used with UnityEvent.
- Networking: Better scene slot handling in NetworkLobbyManager.
- Networking: Fixed: Can't set registered spawn prefab to null.
- Networking: Exception in editor for NetworkTransform in preview window.
- Networking: Fixed LargePacket warning during RelayServer games.
- Networking: Fixed NetworkHash128.ToString() error when string has embedded zeroes.
- Networking: Fixed NetworkManager singleton management regression issue.
- Networking: Fixed numPlayers on NetworkManager.
- Networking: Fixed slow compilation with many ClientRpc functions.
- Networking: Fixed SyncLists becoming invalid after host migration.
- Networking: Fixed SyncLists losing registered callbacks when scene changed.
- Networking: Fixed UNetWeaver build error when a SyncListStruct contains a field and array of the same type.
- Networking: Fixed UNetWeaver error with 15 SyncVars in a NetworkBehaviour.
- Networking: Fixed warning message from NetworkAnimator in editor.
- Networking: Handle script reloads while network is active. This shuts down the network properly, and if there is a NetworkManager, switches to the offline scene.
- Networking: Fixed host migration error when no players.
- Networking: Fixed log spam when profiler window open after deleting network host.
- Networking: Fixed network operations stats not resetting when 'clear' is pressed.
- Networking: NetworkManager HUD updated to not allow MM use.
- Networking: Scene slots of NetworkLobbyManager broken after project upgrade.
- Networking: Unable to restart host after reloading scripts while in play mode and running as host.
- Networking: Wrong item index for SyncList add operation.
- OpenGL Core: Work around desynchronization of default vertex array with active GL context.
- OpenGL ES: Fixed occasional omitting of precision specification in shaders.
- Particles: Fixed crashes when deleting meshes used by a particle system.
- Particles: Fixed graphical corruption when rendering particle meshes with different vertex sizes.
- Particles: Fixed vertex normals, 5.2 regression.
- Particles: Fixed scale when in Local billboarding mode.
- Particles: Improved script API example documentation.
- Particles: Improved particle multi-threading performance.
- Physics: Ensure that Joint2D CollideConnected is correctly upgraded to EnableCollision for all joints.
- Plugins: Fixed invalid assert when there's a plugin containing 'UnityEngine.dll' inside its name, e.g. Something.UnityEngine.dll.
- SceneManagement: Fixed crash caused by loading a scene additively in the same frame as unloading the active scene, if there are no other scenes loaded.
- SceneManagement: Fixed unloading a scene using the full path.
- Scripting: Log error instead of crashing when Start() like methods are defined as generic.
- Shadows: Correctly handle custom off-center projection matrices for directional lights.
- Substance: Changing the random seed of a DoNothing material that has not been generated yet does not cause its textures to be generated anymore.
- Substance: Cloned ProceduralTextures now inherit the color space of the source texture.
- Substance: Exported preset strings now have a valid package URL, label, and description, and can now be loaded in Substance Player.
- Substance: isProcessing now works correctly for BakeAndDiscard materials and for cloned materials.
- Substance: The Substance part of BakeAndDiscard materials could sometimes remain in the standalone builds.
- TreeEditor: Fixed crash on adding branch nodes under GLCore devices.
- UI: Fixed dropdown menu not being displayed when Time.timeScale is set to 0.
- UI: Fixed incorrect culling when a MaskableGraphic had a negative scale value inside of a mask.
- UI: Multiple display support disabled on all platforms except WiiU and 3DS. This will be re-enabled once the non-native resolution bug is fixed.
- UI: Unity GPU profiler now correctly accounts for UI draw calls.
- Windows Store Apps: Added bluetooth capability.
- Windows Store Apps: Fixed AppCallbacks::UnitySetInput throw ClassNotRegisterred exception on UWP.
- Windows Store Apps: Fixed touch screen keyboard not opening after dismiss via X button.
- Windows Store Apps: Fixed Unity splash screen not showing.
- Windows Store Apps: Modify template sources while still in StagingArea, to prevent issues if Visual Studio is open.
- Windows Store Apps: SpriteState is now correctly serialized.
- Windows Store Apps: Use current orientations on startup, only populate manifest from Player Settings.
- Windows Store Apps: When building to SDK 8.1, you no longer need Visual Studio 2013, it's enough to have Visual Studio 2015 with Windows SDK 8.1.
- Windows Store Apps: On screen keyboard reliability fixes on Windows 10.
- Windows Store: Fixed HID controllers when targeting Windows 10 SDK.
- Windows Store: Fixed Unity producing invalid Visual Studio project files if Windows 10 SDK 10.0.10586.0 is installed
- Windows Store: Fixed WinMD references in generated C# projects when building a project with "C# projects" checkbox checked.
- Windows Store: Soft shadows now work correctly on ARM devices with D3D feature level >= 10.0.
- WindowsInstaller: Detect Unity version from the current install path, instead of using the Windows Registry.
- WindowsInstaller: The /D command line option in the Documentation and TargetSupport Installers is correctly handled now.
- WinRT/IL2CPP: Remove compiler warnings in generated C++ code.