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# MTLMapIndirectArguments

The data layout for mapping sparse texture regions when using indirect commands.

```
struct MTLMapIndirectArguments
```

## Topics

### Creating indirect mapping arguments

[`init()`](/documentation/Metal/MTLMapIndirectArguments/init())

Returns a default data layout for mapping sparse texture regions.

[`init(regionOriginX:regionOriginY:regionOriginZ:regionSizeWidth:regionSizeHeight:regionSizeDepth:mipMapLevel:sliceId:)`](/documentation/Metal/MTLMapIndirectArguments/init(regionOriginX:regionOriginY:regionOriginZ:regionSizeWidth:regionSizeHeight:regionSizeDepth:mipMapLevel:sliceId:))

Returns a new data layout for mapping sparse texture regions.

### Specifying region origin

[`regionOriginX`](/documentation/Metal/MTLMapIndirectArguments/regionOriginX)

The x coordinate of the region to change, measured in tile coordinates.

[`regionOriginY`](/documentation/Metal/MTLMapIndirectArguments/regionOriginY)

The y coordinate of the region to change, measured in tile coordinates.

[`regionOriginZ`](/documentation/Metal/MTLMapIndirectArguments/regionOriginZ)

The z coordinate of the region to change, measured in tile coordinates.

### Specifying region dimensions

[`regionSizeWidth`](/documentation/Metal/MTLMapIndirectArguments/regionSizeWidth)

The width of the region, measured in tile coordinates.

[`regionSizeHeight`](/documentation/Metal/MTLMapIndirectArguments/regionSizeHeight)

The height of the region, measured in tile coordinates.

[`regionSizeDepth`](/documentation/Metal/MTLMapIndirectArguments/regionSizeDepth)

The depth of the region, measured in tile coordinates.

### Specifying texture location

[`mipMapLevel`](/documentation/Metal/MTLMapIndirectArguments/mipMapLevel)

The mipmap to change.

[`sliceId`](/documentation/Metal/MTLMapIndirectArguments/sliceId)

The texture slice to change.


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