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# MTLComputePassSampleBufferAttachmentDescriptorArray

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

```
class MTLComputePassSampleBufferAttachmentDescriptorArray
```

## 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

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

Returns the descriptor object for the specified sample buffer attachment.

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

Sets the descriptor object for the specified sample buffer attachment.


---

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