#include "TranslucentRendering.h"
#include "DeferredShadingRenderer.h"
#include "BasePassRendering.h"
#include "DynamicPrimitiveDrawing.h"
#include "RendererModule.h"
#include "ScenePrivate.h"
#include "SceneTextureParameters.h"
#include "ScreenRendering.h"
#include "ScreenPass.h"
#include "MeshPassProcessor.inl"
#include "VolumetricRenderTarget.h"
#include "VariableRateShadingImageManager.h"
#include "Lumen/LumenTranslucencyVolumeLighting.h"
#include "Lumen/RayTracedTranslucency.h"
#include "VirtualShadowMaps/VirtualShadowMapArray.h"
#include "Substrate/Substrate.h"
#include "HairStrands/HairStrandsUtils.h"
#include "PixelShaderUtils.h"
#include "OIT/OIT.h"
#include "OIT/OITParameters.h"
#include "DynamicResolutionState.h"
#include "PostProcess/SceneRenderTargets.h"
#include "PostProcess/TemporalAA.h"
#include "BlueNoise.h"

Classes
class	FCopySceneColorPS

class	FCopyBackgroundVisibilityPS

class	FComposeSeparateTranslucencyPS

class	FTranslucencyUpsampleResponsiveAAPS

Functions
	DECLARE_CYCLE_STAT (TEXT("TranslucencyTimestampQueryFence Wait"), STAT_TranslucencyTimestampQueryFence_Wait, STATGROUP_SceneRendering)

	DECLARE_CYCLE_STAT (TEXT("TranslucencyTimestampQuery Wait"), STAT_TranslucencyTimestampQuery_Wait, STATGROUP_SceneRendering)

	DECLARE_FLOAT_COUNTER_STAT (TEXT("Translucency GPU Time (MS)"), STAT_TranslucencyGPU, STATGROUP_SceneRendering)

	DEFINE_GPU_DRAWCALL_STAT (Translucency)

bool	ShouldRenderVolumetricCloud (const FScene *Scene, const FEngineShowFlags &EngineShowFlags)

bool	IsVSMTranslucentHighQualityEnabled ()

DynamicRenderScaling::FHeuristicSettings	GetDynamicTranslucencyResolutionSettings ()

DynamicRenderScaling::FBudget	GDynamicTranslucencyResolution (TEXT("DynamicTranslucencyResolution"), &GetDynamicTranslucencyResolutionSettings)

EMeshPass::Type	TranslucencyPassToMeshPass (ETranslucencyPass::Type TranslucencyPass)

ETranslucencyView	GetTranslucencyView (const FViewInfo &View)

ETranslucencyView	GetTranslucencyViews (TArrayView< const FViewInfo > Views)

bool	IsSeparateTranslucencyEnabled (ETranslucencyPass::Type TranslucencyPass, float DownsampleScale)

FSeparateTranslucencyDimensions	UpdateSeparateTranslucencyDimensions (const FSceneRenderer &SceneRenderer)

	IMPLEMENT_GLOBAL_SHADER (FCopySceneColorPS, "/Engine/Private/TranslucentLightingShaders.usf", "CopySceneColorMain", SF_Pixel)

FRDGTextureRef	AddCopySceneColorPass (FRDGBuilder &GraphBuilder, TArrayView< const FViewInfo > Views, FRDGTextureMSAA SceneColor, bool WithAlpha, bool bSkipIfUnderwater)

	IMPLEMENT_GLOBAL_SHADER (FCopyBackgroundVisibilityPS, "/Engine/Private/ComposeSeparateTranslucency.usf", "CopyBackgroundVisibilityPS", SF_Pixel)

	IMPLEMENT_GLOBAL_SHADER (FComposeSeparateTranslucencyPS, "/Engine/Private/ComposeSeparateTranslucency.usf", "MainPS", SF_Pixel)

	IMPLEMENT_GLOBAL_SHADER (FTranslucencyUpsampleResponsiveAAPS, "/Engine/Private/TranslucencyUpsampling.usf", "UpsampleResponsiveAAPS", SF_Pixel)

void	SetupPostMotionBlurTranslucencyViewParameters (const FViewInfo &View, FViewUniformShaderParameters &Parameters)

const FRDGTextureDesc	GetPostDOFTranslucentTextureDesc (ETranslucencyPass::Type TranslucencyPass, const FSeparateTranslucencyDimensions &SeparateTranslucencyDimensions, bool bIsModulate, EShaderPlatform ShaderPlatform)

FRDGTextureMSAA	CreatePostDOFTranslucentTexture (FRDGBuilder &GraphBuilder, ETranslucencyPass::Type TranslucencyPass, const FSeparateTranslucencyDimensions &SeparateTranslucencyDimensions, bool bIsModulate, EShaderPlatform ShaderPlatform)

void	SetupDownsampledTranslucencyViewParameters (const FViewInfo &View, FIntPoint TextureExtent, FIntRect ViewRect, ETranslucencyPass::Type TranslucencyPass, FViewUniformShaderParameters &DownsampledTranslucencyViewParameters)

TRDGUniformBufferRef< FTranslucentBasePassUniformParameters >	CreateTranslucentBasePassUniformBuffer (FRDGBuilder &GraphBuilder, const FScene *Scene, const FViewInfo &View, const int32 ViewIndex, const FTranslucencyLightingVolumeTextures &TranslucencyLightingVolumeTextures, FRDGTextureRef SceneColorCopyTexture, const ESceneTextureSetupMode SceneTextureSetupMode, bool bLumenGIEnabled, const FOITData &OITData, ETranslucencyPass::Type TranslucencyPass)

TRDGUniformBufferRef< FTranslucentBasePassUniformParameters >	CreateTranslucentBasePassUniformBuffer (FRDGBuilder &GraphBuilder, const FScene *Scene, const FViewInfo &View, const int32 ViewIndex, const FTranslucencyLightingVolumeTextures &TranslucencyLightingVolumeTextures, FRDGTextureRef SceneColorCopyTexture, const ESceneTextureSetupMode SceneTextureSetupMode, bool bLumenGIEnabled, ETranslucencyPass::Type TranslucencyPass)

Variables
int32	GSeparateTranslucencyUpsampleMode = 1

Function Documentation

◆ AddCopySceneColorPass()

FRDGTextureRef AddCopySceneColorPass	(	FRDGBuilder &	GraphBuilder,
		TArrayView< const FViewInfo >	Views,
		FRDGTextureMSAA	SceneColor,
		bool	WithAlpha = `false`,
		bool	bSkipIfUnderwater = `true`
	)

Add Copy SceneColor Pass.

◆ CreatePostDOFTranslucentTexture()

FRDGTextureMSAA CreatePostDOFTranslucentTexture	(	FRDGBuilder &	GraphBuilder,
		ETranslucencyPass::Type	TranslucencyPass,
		const FSeparateTranslucencyDimensions &	SeparateTranslucencyDimensions,
		bool	bIsModulate,
		EShaderPlatform	ShaderPlatform
	)

Shared function used to create Post DOF translucent textures

◆ CreateTranslucentBasePassUniformBuffer() [1/2]

TRDGUniformBufferRef< FTranslucentBasePassUniformParameters > CreateTranslucentBasePassUniformBuffer	(	FRDGBuilder &	GraphBuilder,
		const FScene *	Scene,
		const FViewInfo &	View,
		const int32	ViewIndex,
		const FTranslucencyLightingVolumeTextures &	TranslucencyLightingVolumeTextures,
		FRDGTextureRef	SceneColorCopyTexture,
		const ESceneTextureSetupMode	SceneTextureSetupMode,
		bool	bLumenGIEnabled,
		const FOITData &	OITData,
		ETranslucencyPass::Type	TranslucencyPass
	)

◆ CreateTranslucentBasePassUniformBuffer() [2/2]

TRDGUniformBufferRef< FTranslucentBasePassUniformParameters > CreateTranslucentBasePassUniformBuffer	(	FRDGBuilder &	GraphBuilder,
		const FScene *	Scene,
		const FViewInfo &	View,
		const int32	ViewIndex,
		const FTranslucencyLightingVolumeTextures &	TranslucencyLightingVolumeTextures,
		FRDGTextureRef	SceneColorCopyTexture,
		const ESceneTextureSetupMode	SceneTextureSetupMode,
		bool	bLumenGIEnabled,
		ETranslucencyPass::Type	TranslucencyPass
	)

◆ DECLARE_CYCLE_STAT() [1/2]

DECLARE_CYCLE_STAT	(	TEXT("TranslucencyTimestampQuery Wait")	,
		STAT_TranslucencyTimestampQuery_Wait	,
		STATGROUP_SceneRendering
	)

◆ DECLARE_CYCLE_STAT() [2/2]

DECLARE_CYCLE_STAT	(	TEXT("TranslucencyTimestampQueryFence Wait")	,
		STAT_TranslucencyTimestampQueryFence_Wait	,
		STATGROUP_SceneRendering
	)

◆ DECLARE_FLOAT_COUNTER_STAT()

DECLARE_FLOAT_COUNTER_STAT	(	TEXT("Translucency GPU Time (MS)")	,
		STAT_TranslucencyGPU	,
		STATGROUP_SceneRendering
	)

◆ DEFINE_GPU_DRAWCALL_STAT()

DEFINE_GPU_DRAWCALL_STAT ( Translucency )

◆ GDynamicTranslucencyResolution()

DynamicRenderScaling::FBudget GDynamicTranslucencyResolution	(	TEXT("DynamicTranslucencyResolution")	,
		&	GetDynamicTranslucencyResolutionSettings
	)

◆ GetDynamicTranslucencyResolutionSettings()

DynamicRenderScaling::FHeuristicSettings GetDynamicTranslucencyResolutionSettings ( )

◆ GetPostDOFTranslucentTextureDesc()

const FRDGTextureDesc GetPostDOFTranslucentTextureDesc	(	ETranslucencyPass::Type	TranslucencyPass,
		const FSeparateTranslucencyDimensions &	SeparateTranslucencyDimensions,
		bool	bIsModulate,
		EShaderPlatform	ShaderPlatform
	)

Shared function to get the post DOF texture pixel format and creation flags

◆ GetTranslucencyView()

ETranslucencyView GetTranslucencyView ( const FViewInfo & View )

Returns the translucency views to render for the requested view.

◆ GetTranslucencyViews()

ETranslucencyView GetTranslucencyViews ( TArrayView< const FViewInfo > Views )

Returns the union of all translucency views to render.

◆ IMPLEMENT_GLOBAL_SHADER() [1/4]

IMPLEMENT_GLOBAL_SHADER	(	FComposeSeparateTranslucencyPS	,
		"/Engine/Private/ComposeSeparateTranslucency.usf"	,
		"MainPS"	,
		SF_Pixel
	)

◆ IMPLEMENT_GLOBAL_SHADER() [2/4]

IMPLEMENT_GLOBAL_SHADER	(	FCopyBackgroundVisibilityPS	,
		"/Engine/Private/ComposeSeparateTranslucency.usf"	,
		"CopyBackgroundVisibilityPS"	,
		SF_Pixel
	)

◆ IMPLEMENT_GLOBAL_SHADER() [3/4]

IMPLEMENT_GLOBAL_SHADER	(	FCopySceneColorPS	,
		"/Engine/Private/TranslucentLightingShaders.usf"	,
		"CopySceneColorMain"	,
		SF_Pixel
	)

◆ IMPLEMENT_GLOBAL_SHADER() [4/4]

IMPLEMENT_GLOBAL_SHADER	(	FTranslucencyUpsampleResponsiveAAPS	,
		"/Engine/Private/TranslucencyUpsampling.usf"	,
		"UpsampleResponsiveAAPS"	,
		SF_Pixel
	)

◆ IsSeparateTranslucencyEnabled()

bool IsSeparateTranslucencyEnabled	(	ETranslucencyPass::Type	TranslucencyPass,
		float	DownsampleScale
	)

Check if separate translucency pass is needed for given pass and downsample scale

◆ IsVSMTranslucentHighQualityEnabled()

bool IsVSMTranslucentHighQualityEnabled ( )

◆ SetupDownsampledTranslucencyViewParameters()

void SetupDownsampledTranslucencyViewParameters	(	const FViewInfo &	View,
		FIntPoint	TextureExtent,
		FIntRect	ViewRect,
		ETranslucencyPass::Type	TranslucencyPass,
		FViewUniformShaderParameters &	DownsampledTranslucencyViewParameters
	)

◆ SetupPostMotionBlurTranslucencyViewParameters()

void SetupPostMotionBlurTranslucencyViewParameters	(	const FViewInfo &	View,
		FViewUniformShaderParameters &	Parameters
	)

◆ ShouldRenderVolumetricCloud()

bool ShouldRenderVolumetricCloud	(	const FScene *	Scene,
		const FEngineShowFlags &	EngineShowFlags
	)

◆ TranslucencyPassToMeshPass()

EMeshPass::Type TranslucencyPassToMeshPass ( ETranslucencyPass::Type TranslucencyPass )

Converts the the translucency pass into the respective mesh pass.

◆ UpdateSeparateTranslucencyDimensions()

FSeparateTranslucencyDimensions UpdateSeparateTranslucencyDimensions ( const FSceneRenderer & SceneRenderer )

Computes the translucency dimensions.

Variable Documentation

◆ GSeparateTranslucencyUpsampleMode

int32 GSeparateTranslucencyUpsampleMode = 1

Classes

Functions

Variables