@three3d/volume/doc/api/volume.gradientparams.hollow.md

@three3d/volume 提供了 ThreeJS 的云效果，包括：点状云、线状云、热力云

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[Home](./index.md) &gt; [@three3d/volume](./volume.md) &gt; [GradientParams](./volume.gradientparams.md) &gt; [hollow](./volume.gradientparams.hollow.md)

## GradientParams.hollow property

当前中心点空心比率

**Signature:**

```typescript
hollow: number;
```