The amount of the rendered scene to darken with a vignette effect.
- iOS 10.0+
- macOS 10.12+
- tvOS 10.0+
- watchOS 3.0+
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 results in no vignetting effect.
This property controls the area of the rendered image to be darkened; the
vignetting property controls the level of darkening applied to those areas.
To enable this behavior, you must first enable the