Why is my child part not moving with its parent?

为什么我的子部件不跟随父部件移动？

Last updated: 2026-10-21

Why is my child part not moving with its parent?

为什么我的子部件不跟随父部件移动？

A child part only follows its parent when the Parent ID matches an existing Part ID and both parts belong to the same material group (SG). If the Parent ID is empty or mistyped, the part stays unbound and moves on its own, or not at all.

只有 Parent ID 与已有的 Part ID 完全匹配，且两个部件属于同一材质组（SG）时，子部件才会跟随父部件。Parent ID 为空或写错，部件就处于未绑定状态，会独立移动或完全不跟随。

How to do it in 3SAX V3

在 3SAX V3 中怎么做

1. Open the SG (Material Group) panel.

1. 打开 SG（材质组）面板。

2. Check the child part’s Parent ID field: it must exactly match a Part ID already in the group.

2. 检查子部件的 Parent ID：必须与组内已有的 Part ID 完全一致。

3. Watch the real-time hint beside the field: green = valid, red = error with a fix example.

3. 看输入框旁的实时提示：绿色为有效，红色为错误并给出修正示例。

4. Fill required fields: Part ID, baseX, baseY, Anchor X/Y.

4. 填写必填项：Part ID、baseX、baseY、Anchor X/Y。

5. If parts must move as one joint, open the BONE (Skeleton) panel and bind both parts to the same skeleton joint.

5. 若需整体联动，打开 BONE（骨骼）面板，把两个部件绑定到同一骨骼关节。

6. Open CANVAS to preview; drag to fine-tune dx/dy and confirm the child follows.

6. 打开 CANVAS 预览，拖动微调 dx/dy，确认子部件跟随。

What you CAN and CANNOT do

能做与不能做

CAN: build parent-child trees with Parent ID, bind parts to skeleton joints so attached parts move together, preview and tweak in CANVAS.
CANNOT: make a child follow a part that is not in the same material group, or bind to a nonexistent Part ID.

能做：用 Parent ID 建立父子树，绑定骨骼关节使部件一起动，在 CANVAS 预览微调。
不能做：让子部件跟随不在同一材质组的部件，或绑定到不存在的 Part ID。

Wrong Parent ID: the code entry is rejected (red hint) or the part stays unbound and flies apart from the parent at render. Validation errors also block the render.

Parent ID 写错：代码被拒绝（红色提示），或部件未绑定、渲染时与父部件飞散；校验错误也会阻止渲染。

Open the 3SAX V3 creator tool, fix the Parent ID, and preview in CANVAS.

打开 3SAX V3 创作工具，修正 Parent ID，在 CANVAS 中预览。