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# radiusStride

Configures the stride, in bytes, between radii in the radius buffer.

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

## Discussion

You are responsible for ensuring this property is set to a multiple of the size corresponding to the [`radiusFormat`](/documentation/Metal/MTL4AccelerationStructureCurveGeometryDescriptor/radiusFormat).

This property defaults to `0` bytes, indicating that the radii are tightly packed.

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