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[Home](./index.md) &gt; [@three3d/volume](./volume.md) &gt; [ColorFogPointsMaterial](./volume.colorfogpointsmaterial.md) &gt; [alphaMap](./volume.colorfogpointsmaterial.alphamap.md)

## ColorFogPointsMaterial.alphaMap property

**Signature:**

```typescript
get alphaMap(): Texture | null;

set alphaMap(value: Texture | null);
```