Unity3D是由Unity Technologies开发的一个让玩家轻松创建诸如三维视频游戏、建筑可视化、实时三维动画等类型互动内容的多平台的综合型游戏开发工具，是一个全面整合的专业游戏引擎。
特点：
其他改进包括艺术家的新工具，如运行时动画绑定和音频，视频和DCC工具的更改。时间轴现在是一个经过验证的包，其中包含一个新的信号功能，允许时间轴与场景对象进行交互。
对移动发布的更改包括修补应用程序包而不是执行完全重建的功能，新的移动自适应性能功能可提供有关热趋势的数据等。
Linux用户将很高兴在这里可以预览兼容版本的Unity Editor。
性能改进包括继续研究多线程面向数据的技术堆栈，可以在创建Megacity演示的过程中看到。同时还宣布了与Havok合作开发的新物理解决方案。
发行说明
Fixes
- 2D: Fixed specific set of sprites can be packed non-optimally. (1002004, 1174641)
- Analytics: Analytics found that the device screen size is always reported as the application render size on Android/iOS and cpu architecture is wrong for Android arm64 devices that are running 32 bit binaries. (1160171, 1160172)
- Android: Fix Android root path initialization from enviroment variables. (1160998, 1173607)
- Android: Fix [Android][OpenGLES] Missing UI and render texture glitches after restarting the game (1145018, 1157350)
- Animation: Fixed an issue where a clip with no recorded data would cause a crash in GameObjectRecorder.SaveToClip (1166522, 1169821)
- Animation: Fixed Undo operation of “Add Motion” in the Blend Tree graph UI. (1134780, 1164506)
- Asset Import: Added the new FileScale property to the ModelImporter class. (1063711, 1169693)
- Asset Import: Fixed an issue where Unity failed to refresh the animation list after the source .fbx Asset changed. (1139051, 1172117)
- Asset Import: When importing, Unity now Ignores Constraint sources that are identical to the target. (1088845, 1170661)
- Build Pipeline: Fix a crash on Standalone Player when assets with Editor only serialized properties. (1144591, 1165740)
- Deployment Management: Worker threads for Enlighten are not set up when launching a Server Build. (1131677, 1144920)
- Editor: Added custom icons vof visual effect graph subgraphs. (1170470, 1171500)
- Editor: Enabled Delete, Duplicate, Find, Frame Selected and Copy/Paste options for Game Objects that have “Not-Editable” flag enabled. (460449, 1161574)
- Editor: Enabled Delete, Duplicate, Find, Frame Selected and Copy/Paste options for Game Objects that have “Not-Editable” flag enabled. (460449, 1161574)
- Editor: Fix for an error message when calling AssetDatabase.ImportPackage on a package that contains scripts. (1158305, 1165962)
- Editor: Fix free move handle being constricted in orthographic mode when Handles.matrix is rotated 90 degrees. (1089308, 1152134)
- Editor: Fixed a warning when using the object selector in the avatar preview window. (1138528, 1155345)
- Editor: Fixed an issue in the Editor where text containing special characters was not copied to the clipboard. (1152899, 1171259)
- Editor: Fixed Null Reference exceptions that occurred when trying to modify normal maps on non-instanced Terrain. (1153471, 1174638)
- Editor: Fixed Splash Screen Background field labels being truncated in Player Settings. (1164579, 1171455)
- Editor: Fixed text copy of special characters (1152899, 1171259)
- Editor: Fixes a crash issue with Occlusion Culling window in some scenarios (1140940, 1168988)
- Graphics: Fixed issues uploading compressed non-power-of-two textures when using D3D11. (1146074, 1149021)
- Graphics: Fixed screen space shadow errors when using dynamic resolution. (1141225, 1157021)
- Graphics: Sped up “CullAllVisibleLights” ~5x on a scene with many baked lights (1087657, 1170210)
- IMGUI: Fixed a word wrap flickering issue with IMGUI. (1089911, 1170535)
- macOS: Fixed a rare crash issue with the Editor build when creating or closing new windows (1151695, 1165408)
- Mobile: Fix android resolution changes in split-screen mode (1145325, 1160380)
- Mobile: Fix [Android] UI scales incorrectly when using Constant Physical Size mode on android device (1136224, 1161877)
- Mobile: [android] Fixed an issue where Gradle builds could fail if a settings.gradle file exists in the root of the project (1164013, 1165806)
- Package Manager: Fixed an issue where a package could contain read-only folders if the installation process was interrupted. This made it difficult to delete parent folders without advanced file manipulations.
- Package Manager: Fixed an issue where the execute file mode of packaged files was suppressed, which prevented executables in packages from running on macOS and Linux. (1154433, 1172896)
- Physics: Fix crash that happened during simulation right after destroying a hierarchy of GOs that had nested Rigidbody components attached. (1122684, 1167209)
- Profiler: Fix for lost custom samplers on some platforms, added runtime tests. (1160669, 1167124)
- Profiler: Fixed errors thrown when switching between ADB and WiFi profiling. (1050359, 1157909)
- Profiler: Fixed non matching Profiler.EndSample errors printed in console when closing player with connected profiler (1150065, 1153959)
- Profiler: Fixed Profiler-Module-close-button and Chart-outline alignment issues (1164515, 1164518)
- Shaders: Fixed an issue with GLSL where two buffers assigned to two separate shader stages could be assigned the same bind point. (1057118, 1171393)
- Shuriken: Particles: Fixed ParticleSystem bounds calculations when using stretched particles and a negative velocity scale (1160531, 1163757)
- Terrain: Fixed issue with terrain brush slider knob disappearing on sliding to extreme left. (1166317, 1167854)
- Terrain: Terrain brush selection shortcuts are assigned to hotkeys F1-F7 by default. (1155153, 1167462)
- Terrain: Trees are not generated from Code in the Built Game when Terrain Data is created via Code using the Constructor (1148469, 1158548)
- UI Elements: Crash was related to some user code modifying the hierarchy while layout was being computed.Fix is to throw an error in such cases (1154561, 1172315)
- Video: VideoPlayer hangs when seeking backwards or forwards on Android (1156779, 1161629)
- Windows: Fixed deadlock on startup on systems with a certain group policy configuration. (1150661, 1170796)
- Windows: Fixed OpenGL graphics API crashing on certain monitor configurations. (1147157, 1170792)
- Windows: Fixed resolution reverting to native refresh rate after losing focus in exclusive full screen mode. (1164372, 1170787)
- Windows: Fixed switching to exclusive full screen from full screen other modes not respecting specified refresh rate. (1164373, 1170785)
- Windows: Fixed window being “Always on top” after switching from exclusive full screen to windowed full screen mode. (1157039, 1170780)
- XR: Editor crash when using holographic emulator with hololens (1141385, 1163557)
- XR: Fix for Can no longer save world anchors to the store using holographic simulate in editor. (1156868, 1163554)
- XR: Fix for Hands selection can no longer be controlled via scripts. (1152960, 1163551)
- XR: Fix for WMR devices assert when playing in editor (1159961, 1159964)
- XR: Fix for XR DeviceAPIs are coming back with incorrect values in Simulation (1158726, 1163548)
- XR: Fix issue with Depth Based LSR on HoloLens V2 that caused significant jitter. (1169760, 1169761)
- XR: Fix null deref access to vr eye texture manager instance. (1115371, 1171507)
- XR: Fix XR Manager system still allowing Legacy XR to be enabled via the checkbox even with loader present. (1169055, 1169066)
- XR: Fixes jiterry Time based animations on quest (1157271, 1172495)
了解更多发行说明，请登录官方网站：Unity Pro
