---
title: CMProjectionType
framework: coremedia
role: symbol
role_heading: Enumeration
path: coremedia/cmprojectiontype
---

# CMProjectionType

Constants describing the projection surface information in a 3D video buffer or channel.

## Declaration

```swift
enum CMProjectionType
```

## Topics

### Projection Surfaces

- [CMProjectionType.rectangular](coremedia/cmprojectiontype/rectangular.md)
- [CMProjectionType.equirectangular](coremedia/cmprojectiontype/equirectangular.md)
- [CMProjectionType.halfEquirectangular](coremedia/cmprojectiontype/halfequirectangular.md)
- [CMProjectionType.fisheye](coremedia/cmprojectiontype/fisheye.md)

### Enumeration Cases

- [CMProjectionType.parametricImmersive](coremedia/cmprojectiontype/parametricimmersive.md)

### Initializers

- [init(rawValue:)](coremedia/cmprojectiontype/init(rawvalue:).md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Metadata

- [CMMetadata](coremedia/cmmetadata.md)
- [CMTag](coremedia/cmtag-api.md)
- [CMTag](coremedia/cmtag-swift.class.md)
- [CMTypedTag](coremedia/cmtypedtag.md)
- [CMTagCollection](coremedia/cmtagcollection.md)
- [CMStereoViewComponents](coremedia/cmstereoviewcomponents.md)
- [CMStereoViewInterpretationOptions](coremedia/cmstereoviewinterpretationoptions.md)
- [CMPackingType](coremedia/cmpackingtype.md)