MergeToolsNon-Destructive Boolean Merging

Keep the original objects alive as hidden sources with handle-style control, then tune the generated result in the MergeTools panel.

Select the meshes and choose MergeTools in the right-click menu to create one connected result. Tune Fillet Radius, Fuse Spread, Tension, Fillet Bulge, Surface Smooth, Subdivision Surface, material blending and the mt_seam attribute live from the N-panel.

Use Difference with either Solid or Remesh, swap which object is the base and which is the cutter with one click, then tune the engine-specific controls at the cut edge.

Enable Weld Bead to sweep a bumpy tube along the actual intersection edges, filtered by seam position and edge angle. Control thickness, tube density and ripple strength, and assign a Weld Material — or leave it empty to use the blend material or a generated dark-steel fallback.

MergeTools builds a separate Fusion Object driven by Geometry Nodes and linked back to the source meshes. Move the hidden sources, refine the seam and materials, then bake to an ordinary mesh. The procedural sources move into a managed hidden backup until you choose Restore Procedural or Delete Backup.

Select any number of meshes at once, or grow a live result later by selecting it together with new meshes and choosing Merge again. Every source keeps its own materials, including sources with several material slots.

Choose Cover Layer to lay a UV-free, triplanar patch of material over the seam band — it reads no UV coordinates, so it never stretches or cracks across UV islands. Or choose Cross-fade to blend the sources' own UV-mapped textures. Both follow the along-surface distance to the seam, so the band stays an even width; shape it with Blend Amount, Blend Sharpness and Blend Noise.

1Merge, non-destructively

Combine any number of meshes into one live result; the sources stay intact and hidden from render.

2Difference with Swap

Subtract cutters from the active base, and flip Swap Objects (A ↔ B) any time to reverse the cut.

3Fillet controls

Pre-Smooth, Fillet Radius, Fuse Spread, Tension, Bulge, Surface Smooth and Subdivision — scale-independent, following the boolean's true intersection edges.

4Weld beads

A bumpy tube swept along the real seam, with size, detail, noise and its own material.

5Fusion Object

A dedicated Geometry Nodes result that references the original objects, so everything stays tunable until you bake.

6Material blend

Cover Layer (UV-free triplanar) or Cross-fade across any number of sources and multi-slot materials, plus the mt_seam attribute for your own shaders.

7Presets and scene list

Save named presets, jump between MergeTools results, or restore the original objects.

8Bake and clean export

Bake to real geometry; blend data becomes a standard UV layer and real material slots.

Blender 4.5 LTS support

• One ZIP for Blender 4.5 LTS through 5.x
• Full and Lite share one version and replace one another

Seam Profiles & Painted Radius

• Seam profiles: Round, Chamfer, Cove groove, Raised Lip and Step
• Paint the fillet radius along the seam — thin in one place, wide in another
• Drag the fillet radius directly in the viewport with a gizmo
• Full-radius fillets on large, dense meshes and grazing contacts (a sphere resting on a plane)

Seam Details Kit

• Rivets, bolts, screws and stitches placed live along the seam — or any object you choose
• Weld styles: TIG ripple, MIG bead, spot weld, caulk and solder
• Panel lines: a groove that follows the seam
• Everything bakes to real geometry

Boolean Stack

• Give every source its own role — Union, Cut or Intersect — in one live result
• Slice: split an object into two pieces, both with clean fillets
• Shell Cut: cut with a wall thickness for hollow boxes and tubes
• Reorder sources and nest merges safely

Cutter Library

• Drag vents, ports, screw holes and panels from the Asset Browser onto any surface
• Cutters snap to the surface normal and cut with a fillet automatically
• Save your own cutters to the library

Smart Wear Materials

• Seam-driven looks: rust bleed, grime, paint chips, weld scorch and glowing seams
• Works in EEVEE and Cycles
• Blend material refreshes automatically when you edit a source material

Game-Ready Bake

• Bake fillets, welds and details to a normal map on the low-poly mesh
• Automatic UVs for the seam band, quad-friendly seam cleanup and LODs
• One click to a GLB / FBX-ready asset

Speed & Organic Fuse

• Draft quality while dragging sliders, full quality the moment you let go
• Clay Fuse: a separate blend radius for every pair of sources, for organic models
• Optional constant-radius CAD fillet
• Full video tutorials and expanded documentation

Merge clean. Stay editable.

Installation, every setting, the Lite edition and troubleshooting are in the Documentation tab.

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