---
title: bentNormal
framework: realitykit
role: symbol
role_heading: Instance Property
path: realitykit/physicallybasedmaterial/bentnormal-swift.property
---

# bentNormal

The bent normal map for the entity.

## Declaration

```swift
var bentNormal: PhysicallyBasedMaterial.BentNormal { get set }
```

## Discussion

Discussion Bent normal mapping describes the average direction of least occlusion at each surface point. This is used to modulate lighting intensity and direction of the material. Use with ambient occlusion to improve the accuracy of indirect diffuse lighting. You can generate bent normals maps from a 3D software package. The following code loads a bent normal map texture and uses it to set this property: if let bentNormalResource = try? TextureResource.load(named:"entity_bentNormalMap") {     let bentNormalMap = PhysicallyBasedMaterial.Texture(bentNormalResource)     material.bentNormal = .init(texture: bentNormalMap) }

## See Also

### Configuring occlusion shading

- [PhysicallyBasedMaterial.BentNormal](realitykit/physicallybasedmaterial/bentnormal-swift.struct.md)
- [enableSpecularOcclusion](realitykit/physicallybasedmaterial/enablespecularocclusion.md)