Blender ↔ RizomUV / Headus UVLayout Bridge

A Blender add-on that bridges your UV workflow between Blender and RizomUV or Headus UVLayout. Send a mesh out, unwrap it in your dedicated UV tool, and get the UVs back — no manual export/import.

Requirements

• Blender 5.0+

• Windows (RizomUVLink native binaries are Windows-only)

• RizomUV and/or Headus UVLayout

License: GNU GPL

Docs: https://tituslvr.github.io/B2RUVL/

What's in v1.0.0

• Live RizomUV link — TCP connection with start/close session and a live status indicator.

• RizomUV tools inside Blender — Sync UV Sets, Weld All, Cut, Unfold, Optimize, Pack.

• Lua script runner — run bundled or custom RizomUV scripts (Box, Mozaic, Pelt, Sharp Edges) with optional auto-run.

• Selection sync — push Blender edge selections (Seams, Sharp, Crease, or current) to RizomUV.

• UVLayout export — send to UVLayout with surface-type and cut-by-sharp-edges options.

• Self-updating binaries — fetch the latest RizomUVLink binaries for your Blender Python version from GitHub.

Install

1. Blender → Edit → Preferences → Add-ons → Install from file…

2. Set paths to UVLayout / RizomUV executables.

Uncheck Relative Path when selecting application folders.

Full guide: see Docs link above.

Support: Forum thread on blenderartists.org

Changelog

• v1.0.0 (current) — Major rewrite. Blender 5.0+ required. New live RizomUV TCP link with status indicator; in-Blender RizomUV tools (Unfold, Optimize, Pack, Cut, Weld All, Sync UV Sets); Lua script runner with bundled scripts; edge-selection sync (Seams/Sharp/Crease/Current); self-updating RizomUVLink binaries.

• v018 — Minimum Blender 4.x. Added ReTake from RizomUV operator.

• v015 — RizomUV: reworked connection (no more Blender freeze), added Exit after save preference, minor fixes.

• v014 — Blender 2.81 compatibility fix.

• v013 — Fixed import when active collection is hidden; added viewport overlay text for RizomUV/UVLayout.

• v012 — Send to RizomUV → Use modifiers disabled by default.

• v011 — UI panel update: visibility rules for Mode, channel selector, and Send buttons.

• v010 — MultiUV fixes: reversed channel order after RizomUV; Mode/channel selector ignored when MultiUV is on; auto-renames channels to match RizomUV rules.

• v009 — Local view fix.

• v008 — Fixed error importing heavy models from RizomUV.

• v007 — Removed obsolete use_mesh_modifiers_render param (Blender API update).

• v006 — Fixed vertex groups bug for UVLayout.

• v005 — Updated preferences, added icons, general code improvements.

• v004 — MultiUV improvements; added RizomUV preferences (Unwrap / Layout tabs).

• v003 — Blender 2.80+ property redesign compatibility; fixed RizomUV naming rules; added MultiUVmap feature.

• v002 — Blender 2.80+ property redesign compatibility.

Digital products are non-refundable.