---
title: "init(regionOriginX:regionOriginY:regionOriginZ:regionSizeWidth:regionSizeHeight:regionSizeDepth:mipMapLevel:sliceId:)"
framework: metal
role: symbol
role_heading: Initializer
path: "metal/mtlmapindirectarguments/init(regionoriginx:regionoriginy:regionoriginz:regionsizewidth:regionsizeheight:regionsizedepth:mipmaplevel:sliceid:)"
---

# init(regionOriginX:regionOriginY:regionOriginZ:regionSizeWidth:regionSizeHeight:regionSizeDepth:mipMapLevel:sliceId:)

Returns a new data layout for mapping sparse texture regions.

## Declaration

```swift
init(regionOriginX: UInt32, regionOriginY: UInt32, regionOriginZ: UInt32, regionSizeWidth: UInt32, regionSizeHeight: UInt32, regionSizeDepth: UInt32, mipMapLevel: UInt32, sliceId: UInt32)
```

## Parameters

- `regionOriginX`: The x coordinate of the region to change, measured in tile coordinates.
- `regionOriginY`: The y coordinate of the region to change, measured in tile coordinates.
- `regionOriginZ`: The z coordinate of the region to change, measured in tile coordinates.
- `regionSizeWidth`: The width of the region, measured in tile coordinates.
- `regionSizeHeight`: The height of the region, measured in tile coordinates.
- `regionSizeDepth`: The depth of the region, measured in tile coordinates.
- `mipMapLevel`: The mipmap to change.
- `sliceId`: The texture slice to change.

## See Also

### Creating indirect mapping arguments

- [init()](metal/mtlmapindirectarguments/init().md)