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# firstMipmapInTail

The index of the first mipmap in the tail.

```
var firstMipmapInTail: Int { get }
```

## Discussion

In a sparse texture, the *tail* is a collection of mipmaps at higher index values that are mapped as a single block of memory. When you map this mipmap into your sparse texture, Metal also maps mipmap levels with larger index values.

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