# GetVertexBufferStride(int)

> Get the vertex buffer stream stride in bytes.

## Definition

* **Type:** Method
* **Namespace:** [UnityEngine](/engine/6000.7/script-reference/unityengine.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
public int GetVertexBufferStride(int stream)
```

### Parameters

**** (\[int]\(https\://learn.microsoft.com/dotnet/api/system.int32)): The vertex data stream index to check for.

### Returns

| Type                                                       | Description                                                                     |
| ---------------------------------------------------------- | ------------------------------------------------------------------------------- |
| [int](https://learn.microsoft.com/dotnet/api/system.int32) | Vertex data size in bytes in this stream, or zero if the stream is not present. |

### Remarks

Meshes usually use a single vertex buffer stream, but it is possible to set up a vertex layout where attributes use different vertex buffers (see [Mesh.MeshData.SetVertexBufferParams](/engine/6000.7/script-reference/unityengine/mesh/meshdata/setvertexbufferparams.md)). When you use such a layout, use this function to query the vertex data size in bytes within a given stream.

Additional Resources: [Mesh.MeshData.vertexBufferCount](/engine/6000.7/script-reference/unityengine/mesh/meshdata/vertexbuffercount.md), [Mesh.MeshData.GetVertexAttributeOffset](/engine/6000.7/script-reference/unityengine/mesh/meshdata/getvertexattributeoffset.md), [Mesh.MeshData.SetVertexBufferParams](/engine/6000.7/script-reference/unityengine/mesh/meshdata/setvertexbufferparams.md), [Mesh.GetVertexBufferStride](/engine/6000.7/script-reference/unityengine/mesh/getvertexbufferstride.md).