Versions checked
The readers were checked against these releases of each source. A component or field a later
release adds is not read until the converter is checked against it, and shows up as
source.unknownScript in the report. The report's first line and the bottom of the window state
the same versions.
| Source | Checked against |
|---|---|
| VRChat SDK | 3.10.5 |
| UniVRM | 0.131.2 |
| Dynamic Bone | 1.3.4 |
| Modular Avatar | 1.18.7, with NDMF 1.14.8 |
| VRCFury | 1.1429.0 |
| Basis | developer at 4f71fd28d, 2026-09-17 |
The Basis row covers what the converter writes to as well as what it reads: Jiggle Physics and HVR Basis Comms are part of the Basis repository and change with it, at version numbers that do not move between commits, so the commit is their version.
VRChat SDK
Avatar components and what becomes of each on Basis. The SDK release that added a component is given where the release notes state it.
| Component | On Basis |
|---|---|
| Avatar descriptor | Converts to a Basis Avatar. See Avatar descriptor |
| PhysBones and colliders | Convert to jiggle physics. See Physics |
| Expression menu and parameters | Toggles, selectors and radials are rebuilt as Vixxy controls. See Menu toggles |
| Contacts, box-shaped ones included (3.10.4) | Reported as contacts.dropped |
| VRC Head Chop | Converts to a Basis Head Chop |
| Constraints, all six types (3.7.0) | Convert to Basis constraints |
| Per-platform overrides (3.8.1) and impostor settings | Reported as vrchat.buildSettings |
| VRC Raycast (3.10.3) | Reported as raycast.dropped |
| Global PhysBone colliders (3.10.4) | Reported as collider.global.dropped |
VRM
Checked against the specification text for VRMC_vrm 1.0 (expressions, lookAt, firstPerson, meta) and VRMC_springBone 1.0, and against the consortium's sample models: Seed-san, the constraint and twist sample, the two isBinary conformance models, the MToon UV animation test, and Alicia 0.51. All six read and plan without an unrecognised component.
Modular Avatar
Every component 1.18.7 ships is recognised. See Modular Avatar for which are rebuilt, which are left to Modular Avatar and which are reported.
VRCFury
Toggles, Full Controllers and Armature Links as 1.1429.0 writes them. Files written by an older VRCFury are read the way VRCFury upgrades them. See VRCFury.