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# MTLBlitPassSampleBufferAttachmentDescriptorArray

A container that stores an array of sample buffer attachments for a blit pass.

```
class MTLBlitPassSampleBufferAttachmentDescriptorArray
```

## Overview

The number of elements in the array is at least the number of elements in an [`MTLDevice`](/documentation/Metal/MTLDevice) instance’s [`counterSets`](/documentation/Metal/MTLDevice/counterSets) property.

## Topics

### Accessing a sample buffer attachment descriptor

[`subscript(_:)`](/documentation/Metal/MTLBlitPassSampleBufferAttachmentDescriptorArray/subscript(_:))

Accesses one of the array’s blit pass sample buffer attachment descriptor instances.

[`setObject:atIndexedSubscript:`](/documentation/Metal/MTLBlitPassSampleBufferAttachmentDescriptorArray/setObject:atIndexedSubscript:)

Copies the properties of a blit pass sample buffer attachment descriptor instance to the properties of one of the array’s instances.


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