<!--
{
  "availability" : [
    "iOS: 11.0.0 -",
    "iPadOS: 11.0.0 -",
    "macCatalyst: 13.1.0 -",
    "macOS: 10.13.0 -",
    "tvOS: 11.0.0 -",
    "visionOS: 1.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "Metal",
  "identifier" : "/documentation/Metal/MTLReadWriteTextureTier/tier2",
  "metadataVersion" : "0.1.0",
  "role" : "Case",
  "symbol" : {
    "kind" : "Case",
    "modules" : [
      "Metal"
    ],
    "preciseIdentifier" : "c:@E@MTLReadWriteTextureTier@MTLReadWriteTextureTier2"
  },
  "title" : "MTLReadWriteTextureTier.tier2"
}
-->

# MTLReadWriteTextureTier.tier2

Indicates the system supports tier 2 read-write textures.

```
case tier2
```

## Discussion

Tier 2 read-write textures support the following pixel formats
(in addition to [`MTLReadWriteTextureTier.tier1`](/documentation/Metal/MTLReadWriteTextureTier/tier1)):

- [`MTLPixelFormat.rgba32Float`](/documentation/Metal/MTLPixelFormat/rgba32Float)
- [`MTLPixelFormat.rgba32Uint`](/documentation/Metal/MTLPixelFormat/rgba32Uint)
- [`MTLPixelFormat.rgba32Sint`](/documentation/Metal/MTLPixelFormat/rgba32Sint)
- [`MTLPixelFormat.rgba16Float`](/documentation/Metal/MTLPixelFormat/rgba16Float)
- [`MTLPixelFormat.rgba16Uint`](/documentation/Metal/MTLPixelFormat/rgba16Uint)
- [`MTLPixelFormat.rgba16Sint`](/documentation/Metal/MTLPixelFormat/rgba16Sint)
- [`MTLPixelFormat.rgba8Unorm`](/documentation/Metal/MTLPixelFormat/rgba8Unorm)
- [`MTLPixelFormat.rgba8Uint`](/documentation/Metal/MTLPixelFormat/rgba8Uint)
- [`MTLPixelFormat.rgba8Sint`](/documentation/Metal/MTLPixelFormat/rgba8Sint)
- [`MTLPixelFormat.r16Float`](/documentation/Metal/MTLPixelFormat/r16Float)
- [`MTLPixelFormat.r16Uint`](/documentation/Metal/MTLPixelFormat/r16Uint)
- [`MTLPixelFormat.r16Sint`](/documentation/Metal/MTLPixelFormat/r16Sint)
- [`MTLPixelFormat.r8Unorm`](/documentation/Metal/MTLPixelFormat/r8Unorm)
- [`MTLPixelFormat.r8Uint`](/documentation/Metal/MTLPixelFormat/r8Uint)
- [`MTLPixelFormat.r8Sint`](/documentation/Metal/MTLPixelFormat/r8Sint)

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)