---
title: matrix
framework: GLKit
role: symbol
role_heading: Instance Property
platforms: [iOS 5.0+, iPadOS 5.0+, macOS 10.8+, tvOS 9.0+]
path: glkit/glkreflectionmapeffect/matrix
---

# matrix

The reflection matrix to apply to the normals of the submitted vertices.

## Declaration

```swift
var matrix: GLKMatrix3 { get set }
```

## See Also

### Effect Properties

- [textureCubeMap](glkit/glkreflectionmapeffect/texturecubemap.md)