#include "ReflectionEnvironment.h"
#include "Components/ReflectionCaptureComponent.h"
#include "Stats/Stats.h"
#include "HAL/IConsoleManager.h"
#include "RHI.h"
#include "UniformBuffer.h"
#include "ShaderParameters.h"
#include "RendererInterface.h"
#include "Shader.h"
#include "StaticBoundShaderState.h"
#include "SceneUtils.h"
#include "RHIStaticStates.h"
#include "PostProcess/SceneRenderTargets.h"
#include "GlobalShader.h"
#include "SceneRenderTargetParameters.h"
#include "DeferredShadingRenderer.h"
#include "BasePassRendering.h"
#include "ScenePrivate.h"
#include "SceneProxies/SkyLightSceneProxy.h"
#include "PostProcess/SceneFilterRendering.h"
#include "PostProcess/PostProcessing.h"
#include "PostProcess/PostProcessSubsurface.h"
#include "LightRendering.h"
#include "PipelineStateCache.h"
#include "DistanceFieldAmbientOcclusion.h"
#include "SceneTextureParameters.h"
#include "ScreenSpaceDenoise.h"
#include "ScreenSpaceRayTracing.h"
#include "RayTracing/RaytracingOptions.h"
#include "RenderGraph.h"
#include "PixelShaderUtils.h"
#include "HairStrands/HairStrandsRendering.h"

Functions
FAutoConsoleVariableRef	CVarReflectionEnvironmentLightmapMixing (TEXT("r.ReflectionEnvironmentLightmapMixing"), GReflectionEnvironmentLightmapMixing, TEXT("Whether to mix indirect specular from reflection captures with indirect diffuse from lightmaps for rough surfaces."), ECVF_Scalability\|ECVF_RenderThreadSafe)

FAutoConsoleVariableRef	CVarReflectionEnvironmentLightmapMixBasedOnRoughness (TEXT("r.ReflectionEnvironmentLightmapMixBasedOnRoughness"), GReflectionEnvironmentLightmapMixBasedOnRoughness, TEXT("Whether to reduce lightmap mixing with reflection captures for very smooth surfaces. This is useful to make sure reflection captures match SSR / planar reflections in brightness."), ECVF_Scalability\|ECVF_RenderThreadSafe)

FAutoConsoleVariableRef	CVarReflectionEnvironmentBeginMixingRoughness (TEXT("r.ReflectionEnvironmentBeginMixingRoughness"), GReflectionEnvironmentBeginMixingRoughness, TEXT("Min roughness value at which to begin mixing reflection captures with lightmap indirect diffuse."), ECVF_Scalability\|ECVF_RenderThreadSafe)

FAutoConsoleVariableRef	CVarReflectionEnvironmentEndMixingRoughness (TEXT("r.ReflectionEnvironmentEndMixingRoughness"), GReflectionEnvironmentEndMixingRoughness, TEXT("Min roughness value at which to end mixing reflection captures with lightmap indirect diffuse."), ECVF_Scalability\|ECVF_RenderThreadSafe)

FAutoConsoleVariableRef	CVarReflectionEnvironmentLightmapMixLargestWeight (TEXT("r.ReflectionEnvironmentLightmapMixLargestWeight"), GReflectionEnvironmentLightmapMixLargestWeight, TEXT("When set to 1 can be used to clamp lightmap mixing such that only darkening from lightmaps are applied to reflection captures."), ECVF_Scalability\|ECVF_RenderThreadSafe)

int	GetReflectionEnvironmentCVar ()

FVector	GetReflectionEnvironmentRoughnessMixingScaleBiasAndLargestWeight ()

bool	IsReflectionEnvironmentAvailable (ERHIFeatureLevel::Type InFeatureLevel)

bool	IsReflectionCaptureAvailable ()

	IMPLEMENT_STATIC_UNIFORM_BUFFER_SLOT (ReflectionCapture)

	IMPLEMENT_STATIC_AND_SHADER_UNIFORM_BUFFER_STRUCT (FReflectionCaptureShaderData, "ReflectionCaptureSM5", ReflectionCapture)

	IMPLEMENT_STATIC_AND_SHADER_UNIFORM_BUFFER_STRUCT_EX (FMobileReflectionCaptureShaderData, "ReflectionCaptureES31", ReflectionCapture, FShaderParametersMetadata::EUsageFlags::NoEmulatedUniformBuffer)

void	SetupSkyIrradianceEnvironmentMapConstantsFromSkyIrradiance (FVector4f *OutSkyIrradianceEnvironmentMap, const FSHVectorRGB3 SkyIrradiance)

void	UpdateSkyIrradianceGpuBuffer (FRDGBuilder &GraphBuilder, const FEngineShowFlags &EngineShowFlags, const FSkyLightSceneProxy *SkyLight, TRefCountPtr< FRDGPooledBuffer > &Buffer)

Variables
int32	GReflectionEnvironmentLightmapMixing = 1

int32	GReflectionEnvironmentLightmapMixBasedOnRoughness = 1

float	GReflectionEnvironmentBeginMixingRoughness = .1f

float	GReflectionEnvironmentEndMixingRoughness = .3f

int32	GReflectionEnvironmentLightmapMixLargestWeight = 10000

Function Documentation

◆ CVarReflectionEnvironmentBeginMixingRoughness()

FAutoConsoleVariableRef CVarReflectionEnvironmentBeginMixingRoughness	(	TEXT("r.ReflectionEnvironmentBeginMixingRoughness")	,
		GReflectionEnvironmentBeginMixingRoughness	,
		TEXT("Min roughness value at which to begin mixing reflection captures with lightmap indirect diffuse.")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarReflectionEnvironmentEndMixingRoughness()

FAutoConsoleVariableRef CVarReflectionEnvironmentEndMixingRoughness	(	TEXT("r.ReflectionEnvironmentEndMixingRoughness")	,
		GReflectionEnvironmentEndMixingRoughness	,
		TEXT("Min roughness value at which to end mixing reflection captures with lightmap indirect diffuse.")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarReflectionEnvironmentLightmapMixBasedOnRoughness()

FAutoConsoleVariableRef CVarReflectionEnvironmentLightmapMixBasedOnRoughness	(	TEXT("r.ReflectionEnvironmentLightmapMixBasedOnRoughness")	,
		GReflectionEnvironmentLightmapMixBasedOnRoughness	,
		TEXT("Whether to reduce lightmap mixing with reflection captures for very smooth surfaces. This is useful to make sure reflection captures match SSR / planar reflections in brightness.")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarReflectionEnvironmentLightmapMixing()

FAutoConsoleVariableRef CVarReflectionEnvironmentLightmapMixing	(	TEXT("r.ReflectionEnvironmentLightmapMixing")	,
		GReflectionEnvironmentLightmapMixing	,
		TEXT("Whether to mix indirect specular from reflection captures with indirect diffuse from lightmaps for rough surfaces.")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarReflectionEnvironmentLightmapMixLargestWeight()

FAutoConsoleVariableRef CVarReflectionEnvironmentLightmapMixLargestWeight	(	TEXT("r.ReflectionEnvironmentLightmapMixLargestWeight")	,
		GReflectionEnvironmentLightmapMixLargestWeight	,
		TEXT("When set to 1 can be used to clamp lightmap mixing such that only darkening from lightmaps are applied to reflection captures.")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ GetReflectionEnvironmentCVar()

int GetReflectionEnvironmentCVar ( )

◆ GetReflectionEnvironmentRoughnessMixingScaleBiasAndLargestWeight()

FVector GetReflectionEnvironmentRoughnessMixingScaleBiasAndLargestWeight ( )

◆ IMPLEMENT_STATIC_AND_SHADER_UNIFORM_BUFFER_STRUCT()

IMPLEMENT_STATIC_AND_SHADER_UNIFORM_BUFFER_STRUCT	(	FReflectionCaptureShaderData	,
		"ReflectionCaptureSM5"	,
		ReflectionCapture
	)

◆ IMPLEMENT_STATIC_AND_SHADER_UNIFORM_BUFFER_STRUCT_EX()

IMPLEMENT_STATIC_AND_SHADER_UNIFORM_BUFFER_STRUCT_EX	(	FMobileReflectionCaptureShaderData	,
		"ReflectionCaptureES31"	,
		ReflectionCapture	,
		FShaderParametersMetadata::EUsageFlags::NoEmulatedUniformBuffer
	)

◆ IMPLEMENT_STATIC_UNIFORM_BUFFER_SLOT()

IMPLEMENT_STATIC_UNIFORM_BUFFER_SLOT ( ReflectionCapture )

◆ IsReflectionCaptureAvailable()

bool IsReflectionCaptureAvailable ( )

◆ IsReflectionEnvironmentAvailable()

bool IsReflectionEnvironmentAvailable ( ERHIFeatureLevel::Type InFeatureLevel )

◆ SetupSkyIrradianceEnvironmentMapConstantsFromSkyIrradiance()

void SetupSkyIrradianceEnvironmentMapConstantsFromSkyIrradiance	(	FVector4f *	OutSkyIrradianceEnvironmentMap,
		const FSHVectorRGB3	SkyIrradiance
	)

◆ UpdateSkyIrradianceGpuBuffer()

void UpdateSkyIrradianceGpuBuffer	(	FRDGBuilder &	GraphBuilder,
		const FEngineShowFlags &	EngineShowFlags,
		const FSkyLightSceneProxy *	SkyLight,
		TRefCountPtr< FRDGPooledBuffer > &	Buffer
	)

Variable Documentation

◆ GReflectionEnvironmentBeginMixingRoughness

float GReflectionEnvironmentBeginMixingRoughness = .1f

◆ GReflectionEnvironmentEndMixingRoughness

float GReflectionEnvironmentEndMixingRoughness = .3f

◆ GReflectionEnvironmentLightmapMixBasedOnRoughness

int32 GReflectionEnvironmentLightmapMixBasedOnRoughness = 1

◆ GReflectionEnvironmentLightmapMixing

int32 GReflectionEnvironmentLightmapMixing = 1

◆ GReflectionEnvironmentLightmapMixLargestWeight

int32 GReflectionEnvironmentLightmapMixLargestWeight = 10000

Functions

Variables