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Octo Vector Bridge

Octo Vector Bridge (OVB) is the missing link between your 2D and 3D line art and Toon Boom Harmony. It turns Blender line art (Grease Pencil or Pencil+), Maya Pencil+, and any SVG or raster image into native, editable Harmony vector pencil lines — with variable width preserved, hidden lines culled, and everything dropped into a clean, rig-ready node graph.

▶Video tutorial — coming soon

  • 3D line art → 2D pencils

    Blender (Grease Pencil or Pencil+) and Maya (Pencil+) strokes become Harmony vector pencil lines you can edit like you drew them by hand — camera-accurate, frame by frame.

  • Variable width, preserved

    Pressure and taper survive the trip. What you see in the WYSIWYG preview is exactly what lands in Harmony — no flat, lifeless imports.

  • Raster tracer built in

    Image-Trace-style bitmap → vector in Colour, Greyscale, or Black-&-White, powered by the bundled Potrace engine.

  • Occlusion & holdouts

    Strokes hidden behind holdout meshes are culled at the camera — the one thing Blender's native exporter can't do.

  • Weight-paint brushes

    Relax, Simplify, and Pressure brushes let you clean and shape your lines inside the tool before they ever reach Harmony.

  • Clean node graphs

    Auto-built pegs, groups, and composites with sibling aggregation — a tidy, animate-ready network, not a flat pile of Read nodes.

One bridge, three DCCs

OVB spans Blender, Maya, and Harmony. One licence covers all three on your machine.

Source What OVB reads Accuracy
Blender — Grease Pencil the GP strokes directly → SVG with real per-point pressure Highest — true variable width
Blender / Maya — Pencil+ Pencil+'s rendered line art (raster + EPS) → reconstructed width Stylized — Pencil+ look, hybrid width
Any SVG / raster Illustrator, Inkscape, PNG/JPG sequences, single frames Depends on source

Everything meets in the Harmony import window, where you preview, tune thickness, clean points, choose art layers, and build the node hierarchy before a single stroke is written.

New here? Start with the basics

Read Installation, then Interface Overview for a tour of the window, then Importing to bring your first artwork in.

Where to go next