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[Home](./index.md) &gt; [@three3d/volume](./volume.md) &gt; [SphereFogMaterialOptions](./volume.spherefogmaterialoptions.md) &gt; [solid](./volume.spherefogmaterialoptions.solid.md)

## SphereFogMaterialOptions.solid property

实心因子

**Signature:**

```typescript
solid?: number | null;
```

## Remarks

在实心范围内，球形雾不会衰减

