---
title: motionTransformBuffer
framework: metal
role: symbol
role_heading: Instance Property
path: metal/mtlinstanceaccelerationstructuredescriptor/motiontransformbuffer
---

# motionTransformBuffer

A buffer that contains descriptions of each motion transform in the acceleration structure.

## Declaration

```swift
var motionTransformBuffer: (any MTLBuffer)? { get set }
```

## See Also

### Specifying motion data

- [motionTransformCount](metal/mtlinstanceaccelerationstructuredescriptor/motiontransformcount.md)
- [motionTransformBufferOffset](metal/mtlinstanceaccelerationstructuredescriptor/motiontransformbufferoffset.md)