RendererUtils.cpp File Reference

#include "RendererUtils.h"
#include "RendererPrivateUtils.h"
#include "Nanite/NaniteRayTracing.h"
#include "RenderTargetPool.h"
#include "RHIDefinitions.h"
#include "DataDrivenShaderPlatformInfo.h"
#include "VisualizeTexture.h"
#include "ScenePrivate.h"
#include "SystemTextures.h"
#include "UnifiedBuffer.h"
#include "ComponentRecreateRenderStateContext.h"

Classes
class	FRTWriteMaskDecodeCS
class	FClearIndirectDispatchArgsCS

Namespaces
namespace	Substrate
namespace	Nanite
namespace	UE
namespace	UE::RendererPrivateUtils
namespace	UE::RendererPrivateUtils::Implementation

Functions
bool	ShouldSkipNaniteLPIs (EShaderPlatform ShaderPlatform)
	IMPLEMENT_GLOBAL_SHADER (FRTWriteMaskDecodeCS, "/Engine/Private/RTWriteMaskDecode.usf", "RTWriteMaskDecodeMain", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER_PARAMETER_STRUCT (FSubstratePublicGlobalUniformParameters, "SubstratePublic")
RENDERER_API FBufferRHIRef &	GetOneTileQuadVertexBuffer ()
RENDERER_API FBufferRHIRef &	GetOneTileQuadIndexBuffer ()
	IMPLEMENT_GLOBAL_SHADER (FClearIndirectDispatchArgsCS, "/Engine/Private/RendererUtils.usf", "ClearIndirectDispatchArgsCS", SF_Compute)
void	AddClearIndirectDispatchArgsPass (FRDGBuilder &GraphBuilder, ERHIFeatureLevel::Type FeatureLevel, FRDGBufferRef IndirectArgsRDG, const FIntVector3 &DimClearValue, uint32 NumIndirectArgs, uint32 IndirectArgStride)
FRDGBufferRef	CreateAndClearIndirectDispatchArgs (FRDGBuilder &GraphBuilder, ERHIFeatureLevel::Type FeatureLevel, const TCHAR *Name, const FIntVector3 &DimClearValue, uint32 NumIndirectArgs, uint32 IndirectArgStride)

Variables
TGlobalResource< FTileTexCoordVertexBuffer >	GOneTileQuadVertexBuffer (1)
TGlobalResource< FTileIndexBuffer >	GOneTileQuadIndexBuffer (1)

Function Documentation

AddClearIndirectDispatchArgsPass()

void AddClearIndirectDispatchArgsPass	(	FRDGBuilder &	GraphBuilder,
		ERHIFeatureLevel::Type	FeatureLevel,
		FRDGBufferRef	IndirectArgsRDG,
		const FIntVector3 &	DimClearValue,
		uint32	NumIndirectArgs,
		uint32	IndirectArgStride
	)

Clear indirect args for GPU-side building, initializes the XYZ dimensions of the dispatch arg to DimClearValue and everything else in the strided range to zero. Can clear one or more args (NumIndirectArgs). IndirectArgStride gives the size (in uints) of each argument, this may be larger than the required size. E.g., to make space for an atomic counter.

CreateAndClearIndirectDispatchArgs()

FRDGBufferRef CreateAndClearIndirectDispatchArgs	(	FRDGBuilder &	GraphBuilder,
		ERHIFeatureLevel::Type	FeatureLevel,
		const TCHAR *	Name,
		const FIntVector3 &	DimClearValue,
		uint32	NumIndirectArgs,
		uint32	IndirectArgStride
	)

Create an indirect args buffer and clear it using AddClearIndirectDispatchArgsPass.

GetOneTileQuadIndexBuffer()

RENDERER_API FBufferRHIRef & GetOneTileQuadIndexBuffer

(

)

One Tile Quad Index Buffer

GetOneTileQuadVertexBuffer()

RENDERER_API FBufferRHIRef & GetOneTileQuadVertexBuffer

(

)

One Tile Quad Vertex Buffer

IMPLEMENT_GLOBAL_SHADER() [1/2]

IMPLEMENT_GLOBAL_SHADER	(	FClearIndirectDispatchArgsCS	,
		"/Engine/Private/RendererUtils.usf"	,
		"ClearIndirectDispatchArgsCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [2/2]

IMPLEMENT_GLOBAL_SHADER	(	FRTWriteMaskDecodeCS	,
		"/Engine/Private/RTWriteMaskDecode.usf"	,
		"RTWriteMaskDecodeMain"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER_PARAMETER_STRUCT()

IMPLEMENT_GLOBAL_SHADER_PARAMETER_STRUCT	(	FSubstratePublicGlobalUniformParameters	,
		"SubstratePublic"
	)

ShouldSkipNaniteLPIs()

bool ShouldSkipNaniteLPIs

(

EShaderPlatform

ShaderPlatform

)

Returns true if Nanite primitives are to be skipped in Light Primitive Interactions (LPI) and the primitive acceleration structure (octree).

Variable Documentation

GOneTileQuadIndexBuffer

TGlobalResource< FTileIndexBuffer > GOneTileQuadIndexBuffer(1)

(

1

)

GOneTileQuadVertexBuffer

TGlobalResource< FTileTexCoordVertexBuffer > GOneTileQuadVertexBuffer(1)

(

1

)