Instance Property

bloomThreshold

The brightness threshold at which to apply a bloom effect to highlights in the rendered scene. Animatable.

Declaration

@property(nonatomic) CGFloat bloomThreshold;

Discussion

A bloom effect adds a soft glow to highlights (areas of bright color) in the rendered scene, simulating the way bright highlights appear to the human eye or a physical camera in a real-world scene. This property controls the brightness level required to trigger the bloom effect; lower values apply the effect to more of the scene, and higher values apply the effect only to the brightest white areas. The default value is 1.0.

You can animate changes to this property’s value. See Animating SceneKit Content.

To enable this behavior, you must first enable the wantsHDR setting.

See Also

Adding Stylistic Visual Effects

bloomIntensity

The magnitude of bloom effect to apply to highlights in the rendered scene. Animatable.

bloomBlurRadius

The radius, in pixels, for the blurring portion of the bloom effect applied to highlights in the rendered scene. Animatable.

colorFringeIntensity

The blend factor for fading the color fringing effect applied to the rendered scene.

colorFringeStrength

The magnitude of color fringing effect to apply to the rendered scene.

vignettingIntensity

The magnitude of vignette (darkening around edges) effect to apply to the rendered scene.

vignettingPower

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