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

# auxiliaryPlanes

The auxiliary planes that this tensor reference requires.

## Declaration

```swift
var auxiliaryPlanes: [MTLTensorAuxiliaryPlaneType] { get }
```

## Discussion

Discussion Returns an array of MTLTensorAuxiliaryPlaneType objects describing each auxiliary plane the shader expects. Empty if the tensor has no auxiliary planes.