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# MTLReadWriteTextureTier

The support level for read-write texture formats.

```
enum MTLReadWriteTextureTier
```

## Topics

### Enumeration cases

[`MTLReadWriteTextureTier.tier1`](/documentation/Metal/MTLReadWriteTextureTier/tier1)

Indicates the system supports tier 1 read-write textures.

[`MTLReadWriteTextureTier.tier2`](/documentation/Metal/MTLReadWriteTextureTier/tier2)

Indicates the system supports tier 2 read-write textures.

[`MTLReadWriteTextureTier.tierNone`](/documentation/Metal/MTLReadWriteTextureTier/tierNone)

Indicates the system doesn’t support read-write textures.


---

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