---
title: constantValues
framework: realitykit
role: symbol
role_heading: Instance Property
path: realitykit/lowlevelmaterialresource/geometrymodifier/descriptor/constantvalues
---

# constantValues

The constant values to use when creating the function. These correspond to constants defined in your metal code.

## Declaration

```swift
var constantValues: MTLFunctionConstantValues { get set }
```

## See Also

### Inspecting the configuration

- [library](realitykit/lowlevelmaterialresource/geometrymodifier/descriptor/library.md)