Loopkut

✂️ Loopkut — Interactive Loop Cuts

Loopkut previews inserted loop cuts directly at your mouse position in Edit Mode. Place one or many loops precisely before committing — with live snapping, mirroring, edge-flow smoothing, and a full mesh bisect mode, all in a single modal tool.

What it adds over the built-in Loop Cut and Slide:

• 🎯 Live preview of the loop exactly where your cursor is — not just the midpoint
• 🧲 Snapping to divisions, fixed distances, vertices, and increments along the edge
• 🔁 Multi-loop insertion with offset and mirroring controls
• 🌊 Set Flow mode — edge-flow smoothing applied to inserted loops
• 🔪 Bisect mode — planar cuts through the mesh, with multi-segment support
• 🎨 Fully customizable keymaps and preview colors

F9 / Adjust Last Operation panel for loop cuts — factor, segments, offset, even, flip, mirror, perpendicular, set flow.

F9 panel for Bisect mode — move, axis, segments, loop offset, merge distance.

🚀 Getting Started

In Edit Mode, press C (default, configurable) with the cursor over your mesh, or pick the Loopkut tool from the toolbar.

1. Hover the mesh — a preview loop follows your cursor along the edge
2. Scroll the mouse wheel to add or remove loops
3. Left-click to confirm and slide the loop(s), click again to place
4. Right-click or Esc to cancel

Hold Ctrl while moving the mouse to snap to the midpoint of the active edge.

🔀 Modes

• Single — one loop at the cursor position
• Multi Loop — several evenly spaced loops, count via scroll wheel, spacing via the Offset factor

⌨️ Modal Shortcuts

All shortcuts work while the tool is running and can be rebound in the preferences:

• E — Even: match the adjacent edge shape
• F — Flip: flip the side used by Even mode
• M — Mirrored: mirror loops about the edge midpoint
• P — Perpendicular: insert loops perpendicular to the active edge
• O — Loop Offset: offset multiple loops to start at the cursor
• R — Reset the multi-loop offset
• V — Insert Verts: insert vertices on the edge instead of full loops
• Mouse Wheel — increase / decrease loop count
• Ctrl + Mouse Move — snap to the edge midpoint
• S — Vertex Snap: snap the loop to nearby vertices
• I — Increment: snap to equidistant points on the edge (↑ / ↓ to change divisions, 2–32)
• D — Set Flow: apply Set Edge Flow smoothing after the cut
• B — Bisect: enter/exit bisect mode
• L — Bisect spacing reference: active edge (local) or whole mesh (global)
• G — Selection Only: limit Bisect to the current selection

Note: Set Flow is mutually exclusive with Even, Increment, Perpendicular and Mirrored.

🧲 Snapping

• Snap Points — points distributed along the active edge
• Auto — derive segment count from edge length and spacing
• Vertex Snap — snap directly to nearby vertices, with an indicator circle

🔪 Bisect Mode

Press B while Loopkut is running for planar cuts with a live preview of the cut plane. Supports multi-segment cuts, selection-only cutting (G), and a local/global spacing reference (L).

⚙️ Preferences

• Activation key — default C, with optional Ctrl/Shift/Alt modifiers
• Rebindable modal keymap for every action, plus a choice of cancel key (RMB or Esc)
• Industry Compatible Keymap support —
• Display settings — color and size for every preview element (loop line, Set Flow line, bisect preview, snap points, indicators…)

💡 Tips

• Alt + Left-click passes through to Blender so you can still orbit and pan mid-operation
• Full undo/redo support through the standard operator redo panel