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[Home](./index.md) &gt; [@three3d/effect](./effect.md) &gt; [BandGeometryOptions](./effect.bandgeometryoptions.md) &gt; [up](./effect.bandgeometryoptions.up.md)

## BandGeometryOptions.up property

起点处的向上的方向 { x: 0, y: 1, z: 0 }

**Signature:**

```typescript
up?: IVector3;
```