Accessory Anchor - Watches and necklaces that stay put [auto-detect / pose check / one click]

A Unity editor extension that stops watches sliding when the arm twists, and floating off or sinking in when the wrist bends.

Accessory Anchor reads which bones, and how much of each, carry the skin or clothing under an accessory, and anchors the accessory to move with the same bones in the same proportions.

A watch on the hand turns with the whole hand, but the skin at the wrist is carried half by the forearm and turns only half as far. That difference is the slide and the sink.

For the moment you hold your arm out and turn it a little, for posing with a bent wrist, and for the bow that buries the pendant in your top.

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- What it does

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* Finds accessories for you - watches, bracelets, rings, necklaces, pendants and other small things hung on bones

* Checks them in 11 poses - arm forward and twisted, wrist bent up and down, arm down and twisted, bowing and more. Shows the slide and the sink in mm, without and with the anchor

* Checks only what it helps - tries several ways of anchoring, keeps the best, and leaves unchecked anything that is better off as it is (a long chain across the chest, a belt round the waist)

* Anchors in one click - it only adds a VRC Parent Constraint. Undo with Ctrl+Z or "Remove"

* Pose preview - puts the avatar in the Scene view into a pose so you can compare without and with. It goes back to rest by itself before saving or entering Play mode

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- Compatibility

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* Unity 2022.3 / VRChat SDK - Avatars 3.7.0 or later (with VRC Constraints; tested on 3.10.4)

* Humanoid avatars, with or without twist bones

* Clothing added with Modular Avatar Merge Armature and accessories placed with Bone Proxy are supported (Modular Avatar is not required)

* VRC Constraints run on PC, Android and iOS

* English and Japanese UI

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- How to use

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1. Import the unitypackage

2. Open Tools > Accessory Anchor

3. Press "Find accessories"

4. Press "Anchor checked items" and save the scene

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- Notes

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* Each anchored accessory adds one VRC Parent Constraint (counted in the performance rank's constraint count)

* Swinging parts (hair or tails with PhysBones) and things on the head are left out

* It cannot remove the deformation of the skin itself when the wrist bends hard (a few mm can remain)

* Depending on how an avatar is built, it may not help. Back up your scene before use

* The product images use Marycia (c) BeroarN and a G-SHOCK GM-2100 3D model (by EvgeniyKuzmenko, CC BY-NC). No avatar or watch is included

* Not tested on platforms other than VRChat

* If something goes wrong, press "Copy log" at the bottom of the window and send the text with your message

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- Contents

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AccessoryAnchor_v1_0_0_EN.zip

* AccessoryAnchor_v1_0_0.unitypackage (scripts and asmdef in Assets/AccessoryAnchor/Editor)

* README.txt (guide)

* LICENSE.txt (license)

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- License (summary)

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* Use it on your own avatars and modify it for your own use freely

* Uploading, distributing or selling avatars you anchored with it is free (do not include the Product's files)

* Copying, transferring, uploading or reselling the Product is prohibited

* The author is not liable for any damage from using the Product

The full terms are in the included LICENSE.txt.