UI Toolkit is intended to become the recommended UI system for your new UI development projects. However, in the current release, UI Toolkit does not have some features that Unity UI (uGUI) and Immediate Mode GUI (IMGUI) support. uGUI and IMGUI are more appropriate for certain use cases, and are required to support legacy projects.
This page provides a high-level feature comparison of UI Toolkit, uGUI, and IMGUI, and their respective approaches to UI design.
The following table lists the recommended and alternative system for runtime and Editor:
| 2021 | Recommendation | Alternative |
|---|---|---|
| Runtime | Unity UI | UI Toolkit |
| Editor | IMGUI | UI Toolkit |
チームのスキルセットやさまざまなテクノロジーへの対応レベルも重要な検討事項です。
The following table lists the recommended system for different roles:
| Roles | UI Toolkit | Unity UI (uGUI) |
IMGUI | Skill sets |
|---|---|---|---|---|
| プログラマー | 可 | 可 | 可 | プログラマーは、あらゆるゲーム開発ツールや API を使用できます。 |
| テクニカルアーティスト | 部分的 | 可 | 不可 | Unity のゲームオブジェクトベースのツールやワークフローに慣れているテクニカルアーティストは、ゲームオブジェクト、コンポーネント、シーンビューを使って快適に作業できるだろうと考えられます。 UI Toolkit のウェブに似たアプローチや、IMGUI の純粋な C# アプローチには馴染めないかもしれません。 |
| UI デザイナー | 可 | 部分的 | 不可 | UI designers who are familiar with UI creation tools are likely to be comfortable with UI Toolkit’s document-based approach. If they are not familiar with GameObject-based workflows, they might require help from programmers or level designers. |
UI Toolkit is in active development and releases new features frequently. uGUI and IMGUI are established and production-proven UI systems that are updated infrequently.
uGUI and IMGUI might be better choices if you need features that are not yet available in UI Toolkit, or you need to support or reuse older UI content.
uGUI is the recommended solution for the following:
MonoBehaviours
UI Toolkit is an alternative to uGUI if you create a screen overlay UI that runs on a wide variety of screen resolutions. Consider UI Toolkit to do the following:
The following table lists the recommended system for major runtime use cases:
| 2021 | Recommendation |
|---|---|
| Multi-resolution menus and HUD in intensive UI projects | UI Toolkit |
| World space UI and VR | Unity UI |
| UI that requires customized shaders and materials | Unity UI |
The following table lists the recommended system for detailed runtime features:
| 2021 | UI Toolkit | Unity UI |
|---|---|---|
| WYSIWYG authoring | 可 | 可 |
| Nesting reusable components | 可 | 可 |
| Global style management | 可 | 不可 |
| Layout and Styling Debugger | 可 | 可 |
| Scene integration | 可 | 可 |
| Rich text tags | 可 | 可 * |
| Scalable text | 可 | 可 * |
| Font fallbacks | 可 | 可 * |
| Adaptive layout | 可 | 可 |
| Input system support | 可 | 可 |
| Serialized events | 不可 | 可 |
| Visual Scripting support | 不可 | 可 |
| Rendering pipelines support | 可 | 可 |
| Screen-space (2D) rendering | 可 | 可 |
| World-space (3D) rendering | 不可 | 可 |
| Custom materials and shaders | 不可 | 可 |
| Sprites / Sprite atlas support | 可 | 可 |
| Dynamic texture atlas | 可 | 不可 |
| Textureless elements | 可 | 不可 |
| UI anti-aliasing | 可 | 不可 |
| Rectangle clipping | 可 | 可 |
| Mask clipping | 不可 | 可 |
| Nested masking | 可 | 可 |
| UI transition animations | 可 | 不可 |
| Integration with Animation Clips and Timeline | 不可 | 可 |
*Requires the TextMesh Pro package
IMGUI is the default solution for most use cases and is especially recommended for the following :
UI Toolkit is an alternative to IMGUI if you create complex editor tools. Consider UI Toolkit for the following:
The following table lists the recommended system for major Editor use cases:
| 2021 | Recommendation |
|---|---|
| Complex editor tool | UI Toolkit |
| Property drawers | IMGUI |
| Collaboration with designers | UI Toolkit |
The following table lists the recommended system for detailed Editor features:
| 2021 | UI Toolkit | IMGUI |
|---|---|---|
| WYSIWYG authoring | 可 | 不可 |
| Nesting reusable components | 可 | 不可 |
| Global style management | 可 | 可 |
| Layout and Styling Debugger | 可 | 不可 |
| Rich text tags | 可 | 可 |
| Scalable text | 可 | 不可 |
| Font fallbacks | 可 | 可 |
| Adaptive layout | 可 | 可 |
| Default Inspectors | 不可 | 可 |
| Inspector: Edit custom object types | 可 | 可 |
| Inspector: Edit custom property types | 可 | 可 |
| Inspector: Mixed values (multi-editing) support | 可 | 可 |
| Array and list-view control | 可 | 可 |
| Data binding: Serialized properties | 可 | 可 |