Accessory Auto Fit — Fit glasses, hats, earrings, chokers, tails, wings, horns and bracelets in one go [VRChat / Unity] (Free trial available)

Put several accessories placed in the scene into one list, and one "Fit all" fits them to your avatar.

Have you run into these?

• Fitting accessories not made for your avatar one by one (position, rotation, size) takes a long time.
• Glasses, hats, chokers and tails each need a different tool or steps.
• After uploading, the accessory does not follow the head or hips.
• An accessory placed for another avatar floats or sinks into the body.

What it does

• Eight types in one window: glasses, hats, earrings, chokers, tails, wings, horns and bracelets.
• For each type, it measures the avatar's head, face, ears, neck, hips, back or wrist and sets the position, rotation and size (you do not click where to place it).
• The type is chosen from the accessory's name (Glasses, Hat, Choker, Tail and so on). If the name does not indicate the type, the row says "Choose a type", and that accessory is not fitted until you choose.
• Accessories with a Modular Avatar BoneProxy are attached with it; the others each become a child of the bone.
• For tails, wings and horns, the avatar's own ones can be hidden (if found).
• Accessories that do not fit are left where they were, with the reason shown on the row.
• Japanese / English window.

Free trial vs Full

• Free trial: shows the fitted result as a still picture in the Scene view for about 30 seconds. The accessories and the avatar are not changed. It does not follow the avatar when you move it.
• Full: the result stays. Fine-tune each accessory with sliders (moving a slider refits only that one). A single earring also gets a mirrored copy on the other ear. One Ctrl+Z puts everything back to before "Fit all".

What we tested

• Eight accessory types fitted together on 11 free avatars: all eight fitted on 6 of them. Pairs that did not fit (no human ears, no neck or arm mesh found and so on) were left where they were, with the reason shown.
• Fitting in reverse order, or one at a time, gives the same position (less than 1 mm apart; tested on two avatars).
• 19 popular free hats, glasses and earrings from BOOTH, each fitted on one avatar: 16 fitted. A party hat was scaled to cover the head, and a monocle to the size of two-lens glasses. A hat with long ears stopped with the reason shown and was left where it was.

Notes

• For humanoid avatars.
• Accessories outside the eight types (animal ears, ribbons, rings, hairpins and so on) cannot be fitted.
• Hats that do not cover the head (such as a small party hat placed on top) and single-lens monocles do not fit well. For hats, if the size would change more than 2x, it stops and shows the reason, but a party hat is scaled to cover the head, and a monocle to the size of two-lens glasses. Please place them by hand.
• Meshes, weights and the original prefabs are not changed. The full version also turns off the avatar's own tail, wings or horns (when "hide" is checked), sets the BoneProxy to keep its current position, and creates a mirrored copy for a single earring.
• Earrings are for avatars with human ears.
• After fitting, check the swaying and the look in Play mode.

Requirements: Unity 2022.3 (tested on 2022.3.22f1), VRChat SDK3 Avatars, Modular Avatar for accessories that use BoneProxy.

No avatar or accessory models included (tool only).

Developed with AI assistance (coding and testing). The store cover frame was made with generative AI.