Free Blender add-on for VRoid→VRM riggers
- Digital0 JPY



# Hair Auto Rig V2 — Free Blender Add-on for VRM Hair Rigging A Blender add-on that automates the tedious parts of rigging card-style hair for VRM: bone generation, weight painting, and VRM SpringBone physics data — including automatic collider assignment. ## What it does 1. Detects hair-card mesh islands automatically 2. Generates a bone chain for each strand (geodesic-distance based, handles curved/curly strands) 3. Auto-assigns skin weights 4. Writes VRM SpringBone data — auto-detects VRM 0.x / 1.0, and automatically links every existing collider on your armature 5. Smart UV packing that tries to preserve real strand proportions ## Requirements - Blender 4.0 or later (developed and tested on Blender 4.3 — older 4.x versions are untested and may not work correctly) - VRM Add-on for Blender https://extensions.blender.org/add-ons/vrm (To import vrm model)
Update
2026/06/25 - Fixed an issue where bones failed to animate after exporting VRM 0.x Spring Bone data.
Video
https://x.com/SurcenVtuber/status/2072970494190796995 Blender https://extensions.blender.org/approval-queue/hair-auto-rig-v2/



