---
title: PhysicallyBasedMaterial.SubsurfaceRadius
framework: realitykit
role: symbol
role_heading: Structure
path: realitykit/physicallybasedmaterial/subsurfaceradius-swift.struct
---

# PhysicallyBasedMaterial.SubsurfaceRadius

## Declaration

```swift
struct SubsurfaceRadius
```

## Topics

### Accessing parameter keys

- [textureKey](realitykit/physicallybasedmaterial/subsurfaceradius-swift.struct/texturekey.md)
- [scaleKey](realitykit/physicallybasedmaterial/subsurfaceradius-swift.struct/scalekey.md)

### Initializers

- [init(scale:texture:)](realitykit/physicallybasedmaterial/subsurfaceradius-swift.struct/init(scale:texture:).md)

### Instance Properties

- [scale](realitykit/physicallybasedmaterial/subsurfaceradius-swift.struct/scale.md)
- [texture](realitykit/physicallybasedmaterial/subsurfaceradius-swift.struct/texture.md)

### Type Properties

- [textureSemantic](realitykit/physicallybasedmaterial/subsurfaceradius-swift.struct/texturesemantic.md)

## Relationships

### Conforms To

- [ExpressibleByFloatLiteral](swift/expressiblebyfloatliteral.md)

## See Also

### Configuring subsurface scattering

- [subsurfaceColor](realitykit/physicallybasedmaterial/subsurfacecolor-swift.property.md)
- [PhysicallyBasedMaterial.SubsurfaceColor](realitykit/physicallybasedmaterial/subsurfacecolor-swift.struct.md)
- [subsurfaceWeight](realitykit/physicallybasedmaterial/subsurfaceweight-swift.property.md)
- [PhysicallyBasedMaterial.SubsurfaceWeight](realitykit/physicallybasedmaterial/subsurfaceweight-swift.struct.md)
- [subsurfaceRadius](realitykit/physicallybasedmaterial/subsurfaceradius-swift.property.md)
- [subsurfaceRadiusScale](realitykit/physicallybasedmaterial/subsurfaceradiusscale-swift.property.md)
- [PhysicallyBasedMaterial.SubsurfaceRadiusScale](realitykit/physicallybasedmaterial/subsurfaceradiusscale-swift.struct.md)
- [subsurfaceScatterAnisotropy](realitykit/physicallybasedmaterial/subsurfacescatteranisotropy-swift.property.md)
- [PhysicallyBasedMaterial.SubsurfaceScatterAnisotropy](realitykit/physicallybasedmaterial/subsurfacescatteranisotropy-swift.struct.md)