---
title: shear
framework: modelio
role: symbol
role_heading: Instance Property
path: modelio/mdltransform/shear
---

# shear

The x-, y-, and z-axis shear factors of the transform relative to its parent coordinate space.

## Declaration

```swift
var shear: vector_float3 { get set }
```

## Discussion

Discussion Together with the translation, rotation, and scale properties, this property defines the local coordinate space for any object affected by the transform, relative to a parent coordinate space. Use the matrix property to work with the complete transform. If the transform includes time-based information, reading this property returns the scale as of the earliest time sample (as reported by the minimumTime property). Writing to this property erases any time-sampled data for the scale factor. To work with time-sampled data from an animated transform, use the scale(atTime:) and setScale(_:forTime:) methods.

## See Also

### Using Factors of a Static Transform

- [translation](modelio/mdltransform/translation.md)
- [rotation](modelio/mdltransform/rotation.md)
- [scale](modelio/mdltransform/scale.md)
- [setIdentity()](modelio/mdltransform/setidentity().md)