---
title: "init(floatLiteral:)"
framework: realitykit
role: symbol
role_heading: Initializer
path: "realitykit/custommaterial/clearcoat-swift.struct/init(floatliteral:)"
---

# init(floatLiteral:)

Creates a clearcoat object using a single value.

## Declaration

```swift
init(floatLiteral value: Float)
```

## Parameters

- `value`: The clearcoat value to use for the entity.

## Discussion

Discussion A clearcoat is a separate layer of transparent specular highlights used to simulate a clear coating, like on a car or the surface of lacquered objects. Use this initializer to create an object to specify the amount of clearcoat for a material using a single value that applies to the entire material. The clearcoat value is available in the material’s surface shader function, but RealityKit doesn’t render a clearcoat unless the material’s lightingModel is CustomMaterial.LightingModel.clearcoat and its surface shader function calls params.surface().set_clearcoat(). The following Metal code demonstrates how to retrieve the clearcoat scale in a surface shader function and use it to set the final clearcoat value for rendering:     // Retrieve the base color tint from the CustomMaterial.     float clearcoatScale = params.material_constants().clearcoat_scale();

// Assign the scale value as the clearcoat value for this pixel.     params.surface().set_clearcoat(clearcoat);

## See Also

### Creating a clearcoat object

- [init(scale:texture:)](realitykit/custommaterial/clearcoat-swift.struct/init(scale:texture:).md)
- [init(_:)](realitykit/custommaterial/clearcoat-swift.struct/init(_:).md)