SceneView.cpp File Reference

#include "SceneView.h"
#include "Engine/World.h"
#include "Materials/Material.h"
#include "Math/InverseRotationMatrix.h"
#include "Misc/Paths.h"
#include "Engine/Engine.h"
#include "SceneInterface.h"
#include "SceneManagement.h"
#include "ShaderCore.h"
#include "EngineModule.h"
#include "BufferVisualizationData.h"
#include "Engine/TextureCube.h"
#include "Engine/RendererSettings.h"
#include "Materials/MaterialInstanceDynamic.h"
#include "Materials/MaterialRenderProxy.h"
#include "HighResScreenshot.h"
#include "Slate/SceneViewport.h"
#include "RenderUtils.h"
#include "StereoRenderUtils.h"
#include "SceneRelativeViewMatrices.h"
#include "Camera/CameraComponent.h"
#include "Camera/CameraTypes.h"
#include "UObject/Interface.h"
#include "TextureResource.h"
#include "HDRHelper.h"
#include "VT/VirtualTextureScalability.h"
#include "SceneViewStateSystemMemory.h"
#include "RHIGPUReadback.h"

Namespaces
namespace	ShadowFreezeCamera

Macros
#define	LERP_PP(NAME)   if(Src.bOverride_ ## NAME) Dest . NAME = FMath::Lerp(Dest . NAME, Src . NAME, Weight);
#define	SET_PP(NAME)   if(Src.bOverride_ ## NAME) Dest . NAME = Src . NAME;
#define	IF_PP(NAME)   if(Src.bOverride_ ## NAME && Src . NAME)

Functions
	DEFINE_LOG_CATEGORY (LogBufferVisualization)
	DEFINE_LOG_CATEGORY (LogNaniteVisualization)
	DEFINE_LOG_CATEGORY (LogLumenVisualization)
	DEFINE_LOG_CATEGORY (LogVirtualShadowMapVisualization)
	DEFINE_LOG_CATEGORY (LogMultiView)
	DECLARE_CYCLE_STAT (TEXT("StartFinalPostprocessSettings"), STAT_StartFinalPostprocessSettings, STATGROUP_Engine)
	DECLARE_CYCLE_STAT (TEXT("OverridePostProcessSettings"), STAT_OverridePostProcessSettings, STATGROUP_Engine)
	IMPLEMENT_STATIC_UNIFORM_BUFFER_SLOT (View)
	IMPLEMENT_STATIC_UNIFORM_BUFFER_SLOT (InstancedView)
	IMPLEMENT_GLOBAL_SHADER_PARAMETER_STRUCT (FPrimitiveUniformShaderParameters, "Primitive")
	IMPLEMENT_STATIC_AND_SHADER_UNIFORM_BUFFER_STRUCT (FViewUniformShaderParameters, "View", View)
	IMPLEMENT_STATIC_AND_SHADER_UNIFORM_BUFFER_STRUCT (FInstancedViewUniformShaderParameters, "InstancedView", InstancedView)
	IMPLEMENT_GLOBAL_SHADER_PARAMETER_STRUCT (FMobileDirectionalLightShaderParameters, "MobileDirectionalLight")
bool	GetHairStrandsDepthOfFieldUseHairDepth ()
FString	LexToString (EMaterialQualityLevel::Type QualityLevel)
FVector4f	CreateInvDeviceZToWorldZTransform (const FMatrix &ProjMatrix)
void	ShadowFreezeCamera::Init (const FViewMatrices &Matrices)
void	SetupViewRectUniformBufferParameters (FViewUniformShaderParameters &ViewUniformShaderParameters, const FIntPoint &BufferSize, const FIntRect &EffectiveViewRect, const FViewMatrices &InViewMatrices, const FViewMatrices &InPrevViewMatrices, const FSetupViewUniformParametersInputs &Inputs)
void	SetupCommonViewUniformBufferParameters (FViewUniformShaderParameters &ViewUniformShaderParameters, const FIntPoint &BufferSize, int32 NumMSAASamples, const FIntRect &EffectiveViewRect, const FViewMatrices &InViewMatrices, const FViewMatrices &InPrevViewMatrices, const FSetupViewUniformParametersInputs &Inputs)

Variables
float	GOrthographicDepthThicknessScale = 0.001
float	GDefaultUpdateOrthoNearPlane = 0.0f
ENGINE_API TGlobalResource< FIdentityPrimitiveUniformBuffer >	GIdentityPrimitiveUniformBuffer

Macro Definition Documentation

IF_PP

#define IF_PP

(

NAME

)

if(Src.bOverride_ ## NAME && Src . NAME)

LERP_PP

#define LERP_PP

(

NAME

)

if(Src.bOverride_ ## NAME) Dest . NAME = FMath::Lerp(Dest . NAME, Src . NAME, Weight);

SET_PP

#define SET_PP

(

NAME

)

if(Src.bOverride_ ## NAME) Dest . NAME = Src . NAME;

Function Documentation

CreateInvDeviceZToWorldZTransform()

FVector4f CreateInvDeviceZToWorldZTransform

(

const FMatrix &

ProjMatrix

)

Utility function to create the inverse depth projection transform to be used by the shader system.

Parameters

ProjMatrix	- used to extract the scene depth ratios
InvertZ	- projection calc is affected by inverted device Z

Returns

vector containing the ratios needed to convert from device Z to world Z

DECLARE_CYCLE_STAT() [1/2]

DECLARE_CYCLE_STAT	(	TEXT("OverridePostProcessSettings")	,
		STAT_OverridePostProcessSettings	,
		STATGROUP_Engine
	)

DECLARE_CYCLE_STAT() [2/2]

DECLARE_CYCLE_STAT	(	TEXT("StartFinalPostprocessSettings")	,
		STAT_StartFinalPostprocessSettings	,
		STATGROUP_Engine
	)

DEFINE_LOG_CATEGORY() [1/5]

DEFINE_LOG_CATEGORY

(

LogBufferVisualization

)

DEFINE_LOG_CATEGORY() [2/5]

DEFINE_LOG_CATEGORY

(

LogLumenVisualization

)

DEFINE_LOG_CATEGORY() [3/5]

DEFINE_LOG_CATEGORY

(

LogMultiView

)

DEFINE_LOG_CATEGORY() [4/5]

DEFINE_LOG_CATEGORY

(

LogNaniteVisualization

)

DEFINE_LOG_CATEGORY() [5/5]

DEFINE_LOG_CATEGORY

(

LogVirtualShadowMapVisualization

)

GetHairStrandsDepthOfFieldUseHairDepth()

bool GetHairStrandsDepthOfFieldUseHairDepth

(

)

IMPLEMENT_GLOBAL_SHADER_PARAMETER_STRUCT() [1/2]

IMPLEMENT_GLOBAL_SHADER_PARAMETER_STRUCT	(	FMobileDirectionalLightShaderParameters	,
		"MobileDirectionalLight"
	)

IMPLEMENT_GLOBAL_SHADER_PARAMETER_STRUCT() [2/2]

IMPLEMENT_GLOBAL_SHADER_PARAMETER_STRUCT	(	FPrimitiveUniformShaderParameters	,
		"Primitive"
	)

IMPLEMENT_STATIC_AND_SHADER_UNIFORM_BUFFER_STRUCT() [1/2]

IMPLEMENT_STATIC_AND_SHADER_UNIFORM_BUFFER_STRUCT	(	FInstancedViewUniformShaderParameters	,
		"InstancedView"	,
		InstancedView
	)

IMPLEMENT_STATIC_AND_SHADER_UNIFORM_BUFFER_STRUCT() [2/2]

IMPLEMENT_STATIC_AND_SHADER_UNIFORM_BUFFER_STRUCT	(	FViewUniformShaderParameters	,
		"View"	,
		View
	)

IMPLEMENT_STATIC_UNIFORM_BUFFER_SLOT() [1/2]

IMPLEMENT_STATIC_UNIFORM_BUFFER_SLOT

(

InstancedView

)

IMPLEMENT_STATIC_UNIFORM_BUFFER_SLOT() [2/2]

IMPLEMENT_STATIC_UNIFORM_BUFFER_SLOT

(

View

)

LexToString()

FString LexToString

(

EMaterialQualityLevel::Type

QualityLevel

)

SetupCommonViewUniformBufferParameters()

void SetupCommonViewUniformBufferParameters	(	FViewUniformShaderParameters &	ViewUniformShaderParameters,
		const FIntPoint &	BufferSize,
		int32	NumMSAASamples,
		const FIntRect &	EffectiveViewRect,
		const FViewMatrices &	InViewMatrices,
		const FViewMatrices &	InPrevViewMatrices,
		const FSetupViewUniformParametersInputs &	Inputs
	)

SetupViewRectUniformBufferParameters()

void SetupViewRectUniformBufferParameters	(	FViewUniformShaderParameters &	ViewUniformShaderParameters,
		const FIntPoint &	BufferSize,
		const FIntRect &	EffectiveViewRect,
		const FViewMatrices &	InViewMatrices,
		const FViewMatrices &	InPrevViewMatrices,
		const FSetupViewUniformParametersInputs &	Inputs
	)

Ortho projection does not use FOV calculations, so rather than sourcing the projection matrix values in CommonViewUniformBuffer.ush, the appropriate values are uploaded in the per view uniform buffer (projection matrix values for perspective, 1.0f for ortho). Doing this here avoids unnecessarily checking for perspective vs ortho in shaders at runtime.

Variable Documentation

GDefaultUpdateOrthoNearPlane

float GDefaultUpdateOrthoNearPlane = 0.0f

GIdentityPrimitiveUniformBuffer

ENGINE_API TGlobalResource<FIdentityPrimitiveUniformBuffer> GIdentityPrimitiveUniformBuffer

Global primitive uniform buffer resource containing identity transformations.

GOrthographicDepthThicknessScale

float GOrthographicDepthThicknessScale = 0.001