---
title: vignettingPower
framework: scenekit
role: symbol
role_heading: Instance Property
path: scenekit/scncamera/vignettingpower
---

# vignettingPower

The amount of the rendered scene to darken with a vignette effect.

## Declaration

```swift
var vignettingPower: CGFloat { get set }
```

## Discussion

Discussion A vignette effect darkens the edges and corners of the rendered scene, simulating the effect of lens and barrel shape on the image produced by a physical camera. Higher values result apply the darkening effect to a broader area around the edges of the rendered image, and lower values apply the effect to a smaller area, leaving more of the rendered image at full brightness. The default value of 0.0 results in no vignetting effect. This property controls the area of the rendered image to be darkened; the vignettingIntensity property controls the level of darkening applied to those areas. To enable this behavior, you must first enable the wantsHDR setting.

## See Also

### Adding Stylistic Visual Effects

- [bloomIntensity](scenekit/scncamera/bloomintensity.md)
- [bloomThreshold](scenekit/scncamera/bloomthreshold.md)
- [bloomBlurRadius](scenekit/scncamera/bloomblurradius.md)
- [colorFringeIntensity](scenekit/scncamera/colorfringeintensity.md)
- [colorFringeStrength](scenekit/scncamera/colorfringestrength.md)
- [vignettingIntensity](scenekit/scncamera/vignettingintensity.md)