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# auxiliaryPlanes

The auxiliary plane configurations for this tensor.

```
var auxiliaryPlanes: MTLTensorAuxiliaryPlaneDescriptorMap? { get set }
```

## Discussion

Set this property with a populated [`MTLTensorAuxiliaryPlaneDescriptorMap`](/documentation/Metal/MTLTensorAuxiliaryPlaneDescriptorMap)
to create a multi-plane tensor. When `nil`, the tensor has only a data plane.

Multi-plane tensors do not support [`machineLearning`](/documentation/Metal/MTLTensorUsage/machineLearning).
Use [`compute`](/documentation/Metal/MTLTensorUsage/compute) or [`render`](/documentation/Metal/MTLTensorUsage/render).

Multi-plane tensors do not support data types larger than one byte as the data plane type.

Multi-plane tensors do not support rank zero.

The default value is `nil`.

---

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