---
title: radiusStride
framework: metal
role: symbol
role_heading: Instance Property
path: metal/mtlaccelerationstructurecurvegeometrydescriptor/radiusstride
---

# radiusStride

The stride, in bytes, between the radius elements in the radius buffer.

## Declaration

```swift
var radiusStride: Int { get set }
```

## Discussion

Discussion The stride needs to be a multiple of the radius format size you configure with the radiusFormat property. The default value is 0, which indicates that the radius elements in the buffer have zero bytes of padding between them.