Supported platforms

This is the compatibility surface for the current release. If your project sits outside it, Loom may not render or may fall back to a slower path.

Game engine

• Unity 6 (6000.3 or newer). Earlier Unity versions are not supported.
• Other engines (Unreal, Godot) are on the roadmap but do not ship today.

Operating systems

Loom runs in the Editor and in standalone player builds on:

The native engine ships as a prebuilt binary for each supported OS inside the Unity package, there’s nothing to compile.

Render pipeline

• URP (Universal Render Pipeline) only.
• The Built-in Render Pipeline is not supported, and neither is HDRP.

Loom composites its UI surface through a render-pipeline hook that only the Scriptable Render Pipeline provides. A Built-in or HDRP project will not display the UI.

Graphics API

Loom hands its rendered UI to Unity as a shared GPU texture, so the project’s graphics API has to be one Loom can share with:

On Windows, set this under Player Settings -> Graphics APIs for Windows. If the project runs under Vulkan or OpenGL, the zero-copy handoff isn’t available and the UI will not appear. Switch the graphics API to Direct3D11 (the Unity default) or Direct3D12.

Tooling (development only)

• Node.js 20+ on the machine running the Editor. Loom uses it to install your UI’s dependencies and run the dev server. Node is not required in shipped player builds, the UI is pre-built and bundled.
• Firefox is optional, used only for inspecting the live UI via Loom -> Open Browser DevTools.

Checking your setup

Run Loom -> Doctor (or open Loom -> Status Window) to verify Node, the native plugin for your platform, the dev server, and the generated types in one place. See the Doctor reference.