---
title: SCNProjectionTransform
framework: scenekit
role: symbol
role_heading: Global Variable
path: scenekit/scnprojectiontransform
---

# SCNProjectionTransform

A 4 x 4 matrix for transforming coordinates from view (or eye) space to clip space.

## Declaration

```swift
let SCNProjectionTransform: String
```

## See Also

### Mapping GLSL Symbols to SceneKit Semantics

- [setSemantic(_:forSymbol:options:)](scenekit/scnprogram/setsemantic(_:forsymbol:options:).md)
- [SCNProgramMappingChannelKey](scenekit/scnprogrammappingchannelkey.md)
- [semantic(forSymbol:)](scenekit/scnprogram/semantic(forsymbol:).md)
- [SCNModelTransform](scenekit/scnmodeltransform.md)
- [SCNModelViewProjectionTransform](scenekit/scnmodelviewprojectiontransform.md)
- [SCNModelViewTransform](scenekit/scnmodelviewtransform.md)
- [SCNNormalTransform](scenekit/scnnormaltransform.md)
- [SCNViewTransform](scenekit/scnviewtransform.md)