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One click sends your Fusion selection (or the whole design) to Light SDK as a .obj.
Fusion doesn’t have a built-in glTF exporter (unlike Blender/Unity/Unreal), so this add-in uses Fusion’s native OBJ export instead — Light SDK loads .obj directly, but materials are simpler than the other plugins’ .glb (no metallic/roughness).
1

Download the add-in

Grab LightExporter-Fusion.zip from the LightSDK releases page and unzip it.
2

Open Scripts and Add-Ins

In Fusion: Utilities → Add-Ins (or press Shift+S).
3

Add it

Add-Ins tab → click the green + → select the unzipped LightExporter folder.
4

Run it

Select LightExporter in the list and click Run (tick Run on Startup to load it automatically next time).
Use it: a new Export to Light button appears on the SOLID tab’s ADD-INS panel, at the far right. Select a single body, face, edge, component, or occurrence, then click Export to Light — a face or edge selection resolves up to its owning body automatically. Nothing selected (or more than one thing selected) exports the whole active design instead. Light SDK opens automatically with your model on macOS. Windows support for this add-in is untested — check back on docs.getlight.tech for updates.