bUseFirstBounceRayGuiding

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API > API/Plugins > API/Plugins/GPULightmass > API/Plugins/GPULightmass/UGPULightmassSettings

Syntax

UPROPERTY&40;EditAnywhere, BlueprintReadWrite, Category&61;GlobalIllumination,  
          Meta&61;&40;EditCondition&61;"bUseIrradianceCaching"&41;&41;  
bool bUseFirstBounceRayGuiding  
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Remarks

If Irradiance Caching is enabled, First Bounce Ray Guiding will search the hemisphere over each first bounce sample to find the brightest directions to weigh the rest of the samples towards. This improves results for interior scenes with specific sources of light like a window. The quality of this pass is controlled with the Trial Samples setting.