# 镜像修改器¶

## 选项¶

### 选项¶

Note

• 镜像的顶点组必须按照常规的左/右模式来命名（即以 “.R”，“.ri​​ght”，“.L”等为后缀）。
• 镜面一边的顶点组必须已经存在（它不会自动创建）。它也必须是完全空的（没有分配顶点给它）。

### 纹理¶

UV 选项可以让你以图像的中间来镜像UV纹理坐标。

UV Offsets
Amount to shift mirrored UVs from the 0.5 point on the U/V axis.

## 提示¶

### 镜像修改器与细分表面修改器的配合使用¶

When using the Mirror Modifier along with a Subdivision Surface modifier, the order in which the modifiers are placed is important.

The above image shows the Subdivision Surface Modifier placed before the Mirror one; as you can see the effect of this is that the mesh is split down the center line of the mirror effect. This is because the Subdivision calculation moves vertices away from the mirror plane, too far away from the Merge Limit.

The above image shows the Mirror Modifier placed before the Subdivision Surface Modifier. In this order, the mirror calculation is done and the vertices are merged together. Only after that does the Subdivision Surface Modifier move any vertices.

### 精确定位镜面¶

To apply a Mirror Modifier, it is common to have to move the object's center onto the edge or face that is to be the axis for mirroring. This can be tricky when attempted visually.

A good technique to achieve an exact position is to select the edge, then use Shift-S and choosing Cursor to Selection. This will position the 3D Cursor in the center of the edge. Finally, press Shift-Ctrl-Alt-C for the Set Origin menu, then select Origin to 3D Cursor. This will move the object's center (and thus, the mirror plane) to where the 3D cursor is located, and the mirroring will be exact.