# Sandbox.VertexBuffer.Init

```csharp
void Init(bool useIndexBuffer)
```

Clear the buffer and set whether it will have indices.

### Parameters

- `useIndexBuffer` (`bool`): Whether this buffer will have indices. Affects [Sandbox.VertexBuffer.Indexed](/api/Sandbox.VertexBuffer/Indexed).

Declared in [Sandbox.VertexBuffer](/api/Sandbox.VertexBuffer).
Assembly: `Sandbox.Engine`.