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Merge two regions A and B into one.

Category: Combine | Add menu: Combine > Union

Inputs grow as you wire them in - this node adds sockets as you connect.

• Region (region): A and B merged into one region.

Fuses overlapping regions into one. Where they overlap the shared boundary disappears, so what comes out has a single outline rather than two stacked shapes.

Order does not matter. Both inputs have to be regions, so run Region: Curves first if you have loose curves. Regions that do not touch come through as separate pieces rather than being forced together.

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• In the modeling view: Union - apply the same union directly on the canvas.
• Intersect: keep only the overlap | Difference - subtract one from the other | Region: Curves - make the regions to combine.
• Regions & booleans | Combine nodes