Reactor Package Manager

Without Reactor, installing a Fuse means: finding the file on a forum, downloading it, copying it into the right folder, restarting Fusion. With Reactor: open the UI, select the Fuse, click Install. Updates are centralized too.

Reactor is free, open source, and maintained by the We Suck Less (WSL) community. It works with Fusion standalone and DaVinci Resolve Studio (and the free version too, depending on the API).

1. Go to We Suck Less (steakunderwater.com) and find the Reactor download.
2. Download the Reactor-Installer.lua file.
3. Open Fusion (or the Fusion page in Resolve).
4. Drag and drop the .lua file into the node graph (or use Script > Run and point it to the file).
5. The installer runs, copies the Reactor files into Fusion, and restarts.
6. After the restart, Reactor shows up in the Fusion menu (or Workspace, depending on the version).

Open Reactor

Menu Workspace > Scripts > Reactor > Open Reactor (the path can change with the version).

Browse packages

A UI listing every available package, with descriptions, screenshots and dependencies. Filter by category (Fuses, Macros, Tools, etc.).

Install

Select a package, click Install. Automatic download, deployment to the right folder, Fusion restart if needed.

Update

Reactor regularly checks for updates to the installed packages. Update All in the UI, or per package.

Uninstall

Removes the package cleanly: files deleted, registry cleaned. Nothing left behind.

Krokodove

A massive pack of Fuses: advanced effects, filters, transformations, generators. One of the most popular packs.

KartaVR

Tools for VR / 360°: projection converters, stitching, an advanced lat-long patcher. For VR artists.

xGlow / xMatrix / xColor

A suite of GPU-optimized Fuses: advanced glow, matrix transformations, color tools. Native performance.

Reactor Templates

Ready-to-use comp templates (lower thirds, intros, transitions). Not exactly Fuses, but distributed through Reactor.

OpenCV Fuses

OpenCV wrappers for computer vision processing: detection, OCR, feature matching.

• Install Reactor first - before anything else on a fresh Fusion install. It gives you immediate access to the whole ecosystem.
• Reactor on Resolve Free vs Studio - some features (external scripting, API) are only available in Studio. Check compatibility.
• Back up before a big install - installing 50 packages at once can break Fusion. Back up the Fusion folder first, or install gradually.
• Test each pack - some Fuses are old, sometimes buggy. Test on a test comp after each install.
• Regular updates - check Update monthly to get bug fixes and new Fuses.
• Give back - if you develop a useful Fuse, submit it to Reactor for the community.
• Team pipeline - standardize a minimum list of Reactor packages on every team workstation for consistency.
• For support, the We Suck Less forum is still active and friendly. Post a question = usually an answer within a few days.