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# setScissorRect(_:)

Sets a scissor rectangle to discard fragments outside a specific area.

```
func setScissorRect(_ rect: MTLScissorRect)
```

## Parameters

`rect`

[`MTLScissorRect`](/documentation/Metal/MTLScissorRect) rectangle to specify. This rectangle needs to lie completely
within the current render attachment.

## Discussion

Metal performs a scissor test and discards all fragments outside of the scissor rect.

---

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