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# indexBuffer

The index buffer used to render the submesh object.

```
var indexBuffer: MTKMeshBuffer { get }
```

## Discussion

Use this object for the `indexBuffer` parameter in a call to <doc://com.apple.documentation/documentation/Metal/MTLRenderCommandEncoder/drawIndexedPrimitives(type:indexCount:indexType:indexBuffer:indexBufferOffset:)>.

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