---
title: simdTransform
framework: scenekit
role: symbol
role_heading: Instance Property
path: scenekit/scnnode/simdtransform
---

# simdTransform

The transform applied to the node relative to its parent. Animatable.

## Declaration

```swift
var simdTransform: simd_float4x4 { get set }
```

## Discussion

Discussion The transform is the combination of the node’s simdRotation, simdPosition, and simdScale properties. The default transform is the identity matrix. When you set the value of this property, the node’s simdRotation, simdOrientation, simdEulerAngles, simdPosition, and simdScale properties automatically change to match the new transform, and vice versa. SceneKit can perform this conversion only if the transform you provide is a combination of rotation, translation, and scale operations. If you set the value of this property to a skew transform or to a nonaffine transform, the values of these properties become undefined. Setting a new value for any of these properties causes SceneKit to compute a new transform, discarding any skew or nonaffine operations in the original transform. You can animate changes to this property’s value. See Animating SceneKit Content.

## See Also

### Related Documentation

- [transform](scenekit/scnnode/transform.md)

### Managing the Node’s Transform

- [simdPosition](scenekit/scnnode/simdposition.md)
- [simdRotation](scenekit/scnnode/simdrotation.md)
- [simdEulerAngles](scenekit/scnnode/simdeulerangles.md)
- [simdOrientation](scenekit/scnnode/simdorientation.md)
- [simdScale](scenekit/scnnode/simdscale.md)
- [simdPivot](scenekit/scnnode/simdpivot.md)