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# setObject:atIndexedSubscript:

Sets the render pipeline state for a specified color attachment.

```
- (void) setObject:(MTLTileRenderPipelineColorAttachmentDescriptor *) attachment atIndexedSubscript:(NSUInteger) attachmentIndex;
```

## Parameters

`attachment`

A descriptor that contains the render pipeline description for a color attachment. Specify `nil` to reset the entry to default values.

`attachmentIndex`

An index in the color attachment array.

## Discussion

This method copies the pipeline state from the descriptor into the specified attachment in the array. Afterwards, you can modify and reuse the descriptior without affecting a previously set attachment.

---

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