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[Home](./index.md) &gt; [@three3d/volume](./volume.md) &gt; [FogPointsMaterial](./volume.fogpointsmaterial.md) &gt; [opacity](./volume.fogpointsmaterial.opacity.md)

## FogPointsMaterial.opacity property

透明度

**Signature:**

```typescript
get opacity(): number;

set opacity(value: number);
```

## Remarks

决定整体的透明度