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This special Mie/Ray only luts are only generated if nedeed (start distance are not 0 on the cloud ocmponent). Measured on console with some cloud material Off - CameraVolumeLUT 0.08 ms - Some Cloud Tracing 4.39 ms On - CameraVolumeLUT 0.09 ms - Some Cloud Tracing 4.40 ms => Almost no impact on CameraVolumeLUT compute => cost of luts sampling when tracing material seems hiden in the tracing/marching cost noise. => More memory used in game: double buffered ray/mie rgba fp16 volumes are 2*2*(32*32*16)*4*2 = 512KB) #preflight https://horde.devtools.epicgames.com/job/6357d631ae33b04ec12fc07f #preflight https://horde.devtools.epicgames.com/job/63580224e456a68082adc4dc #rb Jian.Ru, Ben.Woodhouse #ushell-cherrypick of 22747354 by Sebastien.Hillaire #ushell-cherrypick of 22749809 by Sebastien.Hillaire [CL 22861302 by sebastien hillaire in ue5-main branch]
41 lines
2.0 KiB
C++
41 lines
2.0 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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/*=============================================================================
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FVolumetricCloudSceneProxy implementation.
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=============================================================================*/
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#include "VolumetricCloudProxy.h"
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#include "Components/VolumetricCloudComponent.h"
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FVolumetricCloudSceneProxy::FVolumetricCloudSceneProxy(const UVolumetricCloudComponent* InComponent)
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: LayerBottomAltitudeKm(InComponent->LayerBottomAltitude)
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, LayerHeightKm(InComponent->LayerHeight)
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, TracingStartMaxDistance(InComponent->TracingStartMaxDistance)
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, TracingMaxDistanceMode(uint8(InComponent->TracingMaxDistanceMode))
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, TracingMaxDistance(InComponent->TracingMaxDistance)
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, PlanetRadiusKm(InComponent->PlanetRadius)
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, GroundAlbedo(InComponent->GroundAlbedo)
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, bUsePerSampleAtmosphericLightTransmittance(InComponent->bUsePerSampleAtmosphericLightTransmittance)
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, SkyLightCloudBottomOcclusion(InComponent->SkyLightCloudBottomOcclusion)
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, ViewSampleCountScale(InComponent->ViewSampleCountScale)
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, ReflectionViewSampleCountScale(InComponent->ReflectionViewSampleCountScaleValue)
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, ShadowViewSampleCountScale(InComponent->ShadowViewSampleCountScale)
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, ShadowReflectionViewSampleCountScale(InComponent->ShadowReflectionViewSampleCountScaleValue)
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, ShadowTracingDistance(InComponent->ShadowTracingDistance)
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, StopTracingTransmittanceThreshold(InComponent->StopTracingTransmittanceThreshold)
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, AerialPespectiveMieScatteringStartDistance(InComponent->AerialPespectiveMieScatteringStartDistance)
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, AerialPespectiveMieScatteringFadeDistance(InComponent->AerialPespectiveMieScatteringFadeDistance)
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, AerialPespectiveRayleighScatteringStartDistance(InComponent->AerialPespectiveRayleighScatteringStartDistance)
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, AerialPespectiveRayleighScatteringFadeDistance(InComponent->AerialPespectiveRayleighScatteringFadeDistance)
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, CloudVolumeMaterial(InComponent->Material)
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{
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}
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FVolumetricCloudSceneProxy::~FVolumetricCloudSceneProxy()
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{
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}
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