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# sheen

The intensity of an entity’s sheen.

```
var sheen: PhysicallyBasedMaterial.SheenColor? { get set }
```

## Discussion

For a [`PhysicallyBasedMaterial`](/documentation/RealityKit/PhysicallyBasedMaterial), object, you can use `sheen` to add
soft specular highlights that simulate subtle reflections like the ones
that occur with some materials, primarily fabrics. You can specify
`sheen` using a single color, or you can provide a UV-mapped image.

![An illustration showing two spheres. The one on the right has very](images/com.apple.RealityKit/PhysicallyBasedMaterial-sheen-1@2x.png)

The following example specifies `sheen` using a single value for the
entire material:

```swift
let sheenColor = PhysicallyBasedMaterial.Color(deviceRed: 0.8,
green: 0.8, blue: 0.8, alpha: 1.0)
material.sheen = .init(tint:sheenColor)
```

This example shows how to specify sheen using a UV-mapped image texture:

```swift
if let sheenResource = try? TextureResource.load(named:
"entity_sheen") {
    let sheenMap = MaterialParameters.Texture(sheenResource)
    material.sheen = .init(texture: sheenMap)
}
```

---

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