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> Unreal Engine API Reference > Plugins > GPULightmass > UGPULightmassSettings > bUseIrradianceCaching

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bUseIrradianceCaching

Irradiance Caching should be enabled with interior scenes to achieve more physically correct GI intensities, albeit with some biasing.

Windows

MacOS

Linux

Syntax

[UPROPERTY](Programming/UnrealArchitecture/Reference/Properties)(EditAnywhere, BlueprintReadWrite, Category=GlobalIllumination)
bool bUseIrradianceCaching

Remarks

Irradiance Caching should be enabled with interior scenes to achieve more physically correct GI intensities, albeit with some biasing. Without IC the results may be darker than expected. It should be disabled for exterior scenes.

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