---
title: auxiliaryPlanes
framework: metal
role: symbol
role_heading: Instance Property
path: metal/mtltensor/auxiliaryplanes
---

# auxiliaryPlanes

The auxiliary planes of this tensor.

## Declaration

```swift
var auxiliaryPlanes: [any MTLTensorAuxiliaryPlane] { get }
```

## Discussion

Discussion Returns an array of MTLTensorAuxiliaryPlane objects describing each auxiliary plane configured on this tensor. For single-plane tensors, this array is empty.