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# vertexStride

Sets the stride, in bytes, between vertices in the vertex buffer.

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

## Discussion

The stride you specify needs to be a multiple of the size of the vertex format you provide in the [`vertexFormat`](/documentation/Metal/MTL4AccelerationStructureTriangleGeometryDescriptor/vertexFormat)
property. Similarly, you are responsible for ensuring this stride matches the vertex format data type’s alignment.

Defaults to `0`, which signals the stride matches the size of the [`vertexFormat`](/documentation/Metal/MTL4AccelerationStructureTriangleGeometryDescriptor/vertexFormat) data.

---

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