Unreal Engine 4.26 Documentation

Unreal Engine 4.27 Documentation

Unreal Engine 5.0 Documentation

Unreal Engine 5.1 Documentation

Unreal Engine 5.2 Documentation

Unreal Engine 5.3 Documentation

> Unreal Engine API Reference > Runtime > Engine > GameFramework > FLightmassWorldInfoSettings > VolumetricLightmapSphericalHarmonicSmoothing

Light Theme

Dark Theme

VolumetricLightmapSphericalHarmonicSmoothing

Controls how much smoothing should be done to Volumetric Lightmap samples during Spherical Harmonic de-ringing.

Windows

MacOS

Linux

Syntax

float VolumetricLightmapSphericalHarmonicSmoothing

Remarks

Controls how much smoothing should be done to Volumetric Lightmap samples during Spherical Harmonic de-ringing. Whenever highly directional lighting is stored in a Spherical Harmonic, a ringing artifact occurs which manifests as unexpected black areas on the opposite side. Smoothing can reduce this artifact. Smoothing is only applied when the ringing artifact is present. 0 = no smoothing, 1 = strong smooth (little directionality in lighting).

Help shape the future of Unreal Engine documentation! Tell us how we're doing so we can serve you better.

Take our survey

Dismiss