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Unity 6 User Manual

Unity 6 is the long-term supported (previously known as LTS) release of the next generation of the Unity Engine. It combines the latest technologies and tools to deliver high-quality, high-performance experiences for all supported platforms.Unity 6 contains all features, updates, and improvements made in Unity 2023.1 Tech stream, Unity 2023.2 Tech stream, and Unity 6 Preview.

• New in Unity 6
• Upgrade to Unity 6
• Unity 2023.3 is now Unity 6 Preview

Highlights of Unity 6

These are some main highlights of Unity 6.

Boost rendering performance

Elevate yourscenesA Scene contains the environments and menus of your game. Think of each unique Scene file as a unique level. In each Scene, you place your environments, obstacles, and decorations, essentially designing and building your game in pieces.More info
See inGlossary with scalable, captivating visuals using the latest advances inrendering,lighting, andvisual effects.

Multiplayer game creation

Simplify multiplayer game creation with Unity’smultiplayer packages and services

Expand multiplatform reach

Build better experiences for mobile platforms, including a newly optimized runtime for mobile browsers, and get the latestmultiplatform advances for all supported platforms.

Unlock possibilities with Runtime AI

Unlock new possibilities withRuntime AI powered by Sentis, and create dynamic experiences across all Unity-supported platforms.

Achieve more engaging visuals

Create more engaging visuals with the latest updates toLighting,Graphics performance and profiling,Shader Graph, andVisual Effect Graph.

Enhance productivity and functionality

Improve productivity and functionality across your entire Unity development environment with betterprofiling options,ProBuilder,Cinemachine, andUI Toolkit.

Featured content

Featured content of the Unity User Manual.

Animation

Unity’s Animation system for creating complex character animation withanimation curvesAllows you to add data to an imported clip so you can animate the timings of other items based on the state of an animator. For example, for a game set in icy conditions, you could use an extra animation curve to control the emission rate of a particle system to show the player’s condensing breath in the cold air.More info
See inGlossary and blending.

Audio

Audio in the Unity Editor, including clips, sources, listeners, importing and sound settings.

2D game development

Unity Editor’s 2D-specific features including gameplay,spritesA 2D graphic objects. If you are used to working in 3D, Sprites are essentially just standard textures but there are special techniques for combining and managing sprite textures for efficiency and convenience during development.More info
See inGlossary, and physics.

Lighting

Set up realistic or stylized lighting to apply for a range of art styles.

Multiplayer

Multiplayer game development with Unity’s multiplayer packages and services.

Physics

Simulation of 3D motion, mass, gravity andcollisionsA collision occurs when the physics engine detects that the colliders of two GameObjects make contact or overlap, when at least one has a Rigidbody component and is in motion.More info
See inGlossary.

Platform development

Information about the platforms that you can build your application for.

Rendering

Choose arender pipelineA series of operations that take the contents of a Scene, and displays them on a screen. Unity lets you choose from pre-built render pipelines, or write your own.More info
See inGlossary and add your own rendering andpost-processingA process that improves product visuals by applying filters and effects before the image appears on screen. You can use post-processing effects to simulate physical camera and film properties, for example Bloom and Depth of Field.More infopost processing, postprocessing, postprocess
See inGlossary.

Scripting

Program your games by using scripting in the Unity Editor.

UI

User interface toolkits available in the Unity Editor.

Unity services

Unity services such as Monetization and Cloud Services, Ads, Cloud Build, and Multiplayer.

Visual effects

Add and customize particle,lens flareA component that simulates the effect of lights refracting inside a camera lens. Use a Lens Flare to represent very bright lights or add atmosphere to your scene.More info
See inGlossary, and full-screen effects.

XR

Develop augmented, mixed, andvirtual realityVirtual Reality (VR) immerses users in an artificial 3D world of realistic images and sounds, using a headset and motion tracking.More info
See inGlossary experiences with the Unity Editor.

Additional resources

• Best practice guides - Best practices from Unity Support engineers.
• Unity Discussions - A community-driven place where you can search for frequently asked questions and answers.
• The Unity Knowledge Base - A collection of answers to questions posed to Unity’s Support teams.
• Tutorials - Step-by-step video and written guides to using the Unity Editor.
• Asset Store help - Help onAsset StoreA growing library of free and commercial assets created by Unity and members of the community. Offers a wide variety of assets, from textures, models and animations to whole project examples, tutorials and Editor extensions.More info
  See inGlossary content sharing.