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The accessory follows the character’s movement but does not deform.

This type of accessory is usually made of materials such as plastic or metal, for example, watches, earrings, sunglasses, and hair clips.
For instance, when glasses are added to an avatar, they remain fixed above the nose and do not change shape with the avatar’s facial expressions. Therefore, glasses are considered rigid accessories.

Similar to rigid attachment, but the accessory follows the character’s movement along a chain-like path.

This type of accessory is typically made from elongated materials, such as Chinese knots, tassel earrings, and chain straps on handbags.
For example, when an avatar carries a handbag with a chain strap, the bag hangs at the avatar’s hand position but does not rotate or swing with the hand’s movement. The bag and chain remain vertically aligned with the ground.

The accessory follows the character’s movement and deforms according to the character’s actions.

This type of accessory is usually made from fabric, hair, or other similar materials, such as gloves or shoes.
For instance, when gloves are added to an avatar, they remain positioned at the avatar’s hands but deform with the movement of the avatar’s fingers. Therefore, gloves are considered soft accessories.

Automatically

bounding boxes

The software algorithm automatically generates a virtual “bounding box” around the binding area of an accessory or character.

A bounding box prevents accessories from intersecting with the character model (e.g., a watch passing through the wrist or earrings piercing the cheek) and serves as a reference boundary for binding, ensuring the accessory only moves within the designated range.

Expansion distance

When generating a bounding box automatically or manually, this is the specific value by which the box expands outward from the original boundaries of the enclosed object (e.g., accessory or model part).

When an accessory (e.g., an earring or glove) is added or edited on one side of a character (e.g., the left side), the software automatically generates an identical accessory on the symmetrical side (e.g., the right side), maintaining symmetry in position and binding settings.

This simplifies the production of symmetrical accessories and ensures that both sides match perfectly in shape and position.