What is the best anchor setting for a spinning part?

旋转部件的最佳锚点设置

Last updated: 2026-10-21

What is the best anchor setting for a spinning part?

旋转部件的最佳锚点设置是什么？

Set Anchor X/Y at the part's rotation center. For a wheel, set the anchor at the hub; for a limb, set it at the joint. If the anchor is off-center, the part will orbit instead of spin.

将 Anchor X/Y 设在部件的旋转中心。轮子设在轴心，肢体设在关节。锚点偏离中心，部件就会绕错误点公转而非自转。

How to do it in 3SAX V3

在 3SAX V3 中如何操作

1. Open the SG Material Group panel and select the part.

1. 打开 SG 材质组面板，选中该部件。

2. Check the PNG's pivot in your image editor, then enter matching Anchor X/Y values.

2. 在图像编辑器中确认 PNG 的轴心，然后填入匹配的 Anchor X/Y。

3. Set Parent ID and baseX/baseY so the part sits correctly in the parent-child tree.

3. 设置 Parent ID 与 baseX/baseY，让部件在父子树中正确定位。

4. Bind the part to a skeleton joint in the BONE panel if it should move with a limb.

4. 若部件需随肢体运动，在 BONE 面板绑定到骨架关节。

5. In the AG panel, add an action unit targeting this part's join with a relative rotation and seq frame range (e.g., 01:0-5).

5. 在 AG 面板添加动作单元，目标为该部件的 join，设置相对旋转与 seq 帧范围（如 01:0-5）。

6. Open CANVAS to preview; check the part spins in place.

6. 打开 CANVAS 预览，确认部件原地自转。

7. Run whole-project validation before rendering.

7. 渲染前运行整项目校验。

What you CAN and CANNOT do

能做与不能做

CAN:

能做：

Set per-part Anchor X/Y, Parent ID, baseX/baseY, Scale, Layer, Z-perspective.
Combine rotation in AG with skeleton binding in BONE.
Fine-tune rot and scale in CANVAS; changes sync back to codes.

逐部件设置 Anchor X/Y、Parent ID、baseX/baseY、Scale、Layer、Z-perspective。
结合 AG 旋转与 BONE 骨架绑定。
在 CANVAS 微调 rot 与 scale，改动同步回代码。

CANNOT:

不能做：

Auto-detect the correct anchor from the PNG; you must enter it.
Fix an off-center anchor during render; the part will swing around the wrong point.
Skip the anchor field; required fields are marked, and invalid input shows a red error with a fix example.

从 PNG 自动识别正确锚点，必须手动输入。
在渲染时修正偏心锚点；部件会绕错误点甩动。
跳过锚点字段；必填项已标注，错误输入会显示红色提示及修正示例。

Try the 3SAX V3 creator tool and set your anchor at the hub first.

试试 3SAX V3 创作工具，先把锚点设在轴心。