---
title: MTLPixelFormat.pvrtc_rgb_4bpp_srgb
framework: metal
role: symbol
role_heading: Case
path: metal/mtlpixelformat/pvrtc_rgb_4bpp_srgb
---

# MTLPixelFormat.pvrtc_rgb_4bpp_srgb

A compressed format that uses PVRTC compression and 4bpp for RGB components with a conversion between sRGB and linear space.

## Declaration

```swift
case pvrtc_rgb_4bpp_srgb
```

## Discussion

Discussion The only texture types that support this format include: MTLTextureType.type2D MTLTextureType.type2DArray MTLTextureType.typeCube note: The format doesn’t support subimages.

## See Also

### Compressed PVRTC pixel formats

- [MTLPixelFormat.pvrtc_rgb_2bpp](metal/mtlpixelformat/pvrtc_rgb_2bpp.md)
- [MTLPixelFormat.pvrtc_rgb_2bpp_srgb](metal/mtlpixelformat/pvrtc_rgb_2bpp_srgb.md)
- [MTLPixelFormat.pvrtc_rgb_4bpp](metal/mtlpixelformat/pvrtc_rgb_4bpp.md)
- [MTLPixelFormat.pvrtc_rgba_2bpp](metal/mtlpixelformat/pvrtc_rgba_2bpp.md)
- [MTLPixelFormat.pvrtc_rgba_2bpp_srgb](metal/mtlpixelformat/pvrtc_rgba_2bpp_srgb.md)
- [MTLPixelFormat.pvrtc_rgba_4bpp](metal/mtlpixelformat/pvrtc_rgba_4bpp.md)
- [MTLPixelFormat.pvrtc_rgba_4bpp_srgb](metal/mtlpixelformat/pvrtc_rgba_4bpp_srgb.md)