MeshDrawCommands.cpp File Reference

#include "MeshDrawCommands.h"
#include "BasePassRendering.h"
#include "RendererModule.h"
#include "ScenePrivate.h"
#include "TranslucentRendering.h"
#include "InstanceCulling/InstanceCullingManager.h"
#include "StaticMeshBatch.h"
#include "SceneDefinitions.h"
#include "MeshDrawCommandStats.h"

Classes
class	FMeshDrawCommandPassSetupTask
class	FMeshDrawCommandInitResourcesTask
class	FDrawVisibleMeshCommandsAnyThreadTask

Functions
uint32	BitInvertIfNegativeFloat (uint32 f)
void	UpdateTranslucentMeshSortKeys (ETranslucentSortPolicy::Type TranslucentSortPolicy, const FVector &TranslucentSortAxis, const FVector &ViewOrigin, const FMatrix &ViewMatrix, const TScenePrimitiveArray< FPrimitiveBounds > &PrimitiveBounds, ETranslucencyPass::Type TranslucencyPass, bool bInverseSorting, FMeshCommandOneFrameArray &VisibleMeshCommands)
void	MergeMobileBasePassMeshDrawCommands (const FMobileCSMVisibilityInfo &MobileCSMVisibilityInfo, int32 ScenePrimitiveNum, FMeshCommandOneFrameArray &MeshCommands, FMeshCommandOneFrameArray &MeshCommandsCSM)
void	UpdateMobilePassMeshSortKeys (const FVector &ViewOrigin, const TScenePrimitiveArray< FPrimitiveBounds > &ScenePrimitiveBounds, FMeshCommandOneFrameArray &VisibleMeshCommands)
FORCEINLINE int32	TranslatePrimitiveId (int32 DrawPrimitiveIdIn, int32 DynamicPrimitiveIdOffset, int32 DynamicPrimitiveIdMax)
void	GenerateDynamicMeshDrawCommands (const FViewInfo &View, EShadingPath ShadingPath, EMeshPass::Type PassType, FMeshPassProcessor *PassMeshProcessor, const TArray< FMeshBatchAndRelevance, SceneRenderingAllocator > &DynamicMeshElements, const TArray< FMeshPassMask, SceneRenderingAllocator > *DynamicMeshElementsPassRelevance, int32 MaxNumDynamicMeshElements, const TArray< const FStaticMeshBatch *, SceneRenderingAllocator > &DynamicMeshCommandBuildRequests, const TArray< EMeshDrawCommandCullingPayloadFlags, SceneRenderingAllocator > DynamicMeshCommandBuildFlags, int32 MaxNumBuildRequestElements, FMeshCommandOneFrameArray &VisibleCommands, FDynamicMeshDrawCommandStorage &MeshDrawCommandStorage, FGraphicsMinimalPipelineStateSet &MinimalPipelineStatePassSet, bool &NeedsShaderInitialisation)
void	GenerateMobileBasePassDynamicMeshDrawCommands (const FViewInfo &View, EShadingPath ShadingPath, EMeshPass::Type PassType, FMeshPassProcessor *PassMeshProcessor, FMeshPassProcessor *MobilePassCSMPassMeshProcessor, const TArray< FMeshBatchAndRelevance, SceneRenderingAllocator > &DynamicMeshElements, const TArray< FMeshPassMask, SceneRenderingAllocator > *DynamicMeshElementsPassRelevance, int32 MaxNumDynamicMeshElements, const TArray< const FStaticMeshBatch *, SceneRenderingAllocator > &DynamicMeshCommandBuildRequests, const TArray< EMeshDrawCommandCullingPayloadFlags, SceneRenderingAllocator > DynamicMeshCommandBuildFlags, int32 MaxNumBuildRequestElements, FMeshCommandOneFrameArray &VisibleCommands, FDynamicMeshDrawCommandStorage &MeshDrawCommandStorage, FGraphicsMinimalPipelineStateSet &GraphicsMinimalPipelineStateSet, bool &NeedsShaderInitialisation)
void	ApplyViewOverridesToMeshDrawCommands (EShadingPath ShadingPath, EMeshPass::Type PassType, bool bReverseCulling, bool bRenderSceneTwoSided, FExclusiveDepthStencil::Type BasePassDepthStencilAccess, FExclusiveDepthStencil::Type DefaultBasePassDepthStencilAccess, FMeshCommandOneFrameArray &VisibleMeshDrawCommands, FDynamicMeshDrawCommandStorage &MeshDrawCommandStorage, FGraphicsMinimalPipelineStateSet &MinimalPipelineStatePassSet, bool &NeedsShaderInitialisation, FMeshCommandOneFrameArray &TempVisibleMeshDrawCommands)
void	CollectMeshDrawCommandPassStats (FMeshCommandOneFrameArray &VisibleMeshDrawCommands, FInstanceCullingContext &InstanceCullingContext)
void	SortAndMergeDynamicPassMeshDrawCommands (const FSceneView &SceneView, FRHICommandList &RHICmdList, FMeshCommandOneFrameArray &VisibleMeshDrawCommands, FDynamicMeshDrawCommandStorage &MeshDrawCommandStorage, FRHIBuffer *&OutPrimitiveIdVertexBuffer, uint32 InstanceFactor, const FGPUScenePrimitiveCollector *DynamicPrimitiveCollector)

Variables
TGlobalResource< FPrimitiveIdVertexBufferPool >	GPrimitiveIdVertexBufferPool
FAutoConsoleTaskPriority	CPrio_FMeshDrawCommandPassSetupTask (TEXT("TaskGraph.TaskPriorities.FMeshDrawCommandPassSetupTask"), TEXT("Task and thread priority for FMeshDrawCommandPassSetupTask."), ENamedThreads::NormalThreadPriority, ENamedThreads::HighTaskPriority)

Function Documentation

ApplyViewOverridesToMeshDrawCommands()

void ApplyViewOverridesToMeshDrawCommands	(	EShadingPath	ShadingPath,
		EMeshPass::Type	PassType,
		bool	bReverseCulling,
		bool	bRenderSceneTwoSided,
		FExclusiveDepthStencil::Type	BasePassDepthStencilAccess,
		FExclusiveDepthStencil::Type	DefaultBasePassDepthStencilAccess,
		FMeshCommandOneFrameArray &	VisibleMeshDrawCommands,
		FDynamicMeshDrawCommandStorage &	MeshDrawCommandStorage,
		FGraphicsMinimalPipelineStateSet &	MinimalPipelineStatePassSet,
		bool &	NeedsShaderInitialisation,
		FMeshCommandOneFrameArray &	TempVisibleMeshDrawCommands
	)

Apply view overrides to existing mesh draw commands (e.g. reverse culling mode for rendering planar reflections). TempVisibleMeshDrawCommands must be presized for NewPassVisibleMeshDrawCommands.

BitInvertIfNegativeFloat()

uint32 BitInvertIfNegativeFloat

(

uint32

f

)

CollectMeshDrawCommandPassStats()

void CollectMeshDrawCommandPassStats	(	FMeshCommandOneFrameArray &	VisibleMeshDrawCommands,
		FInstanceCullingContext &	InstanceCullingContext
	)

GenerateDynamicMeshDrawCommands()

void GenerateDynamicMeshDrawCommands	(	const FViewInfo &	View,
		EShadingPath	ShadingPath,
		EMeshPass::Type	PassType,
		FMeshPassProcessor *	PassMeshProcessor,
		const TArray< FMeshBatchAndRelevance, SceneRenderingAllocator > &	DynamicMeshElements,
		const TArray< FMeshPassMask, SceneRenderingAllocator > *	DynamicMeshElementsPassRelevance,
		int32	MaxNumDynamicMeshElements,
		const TArray< const FStaticMeshBatch *, SceneRenderingAllocator > &	DynamicMeshCommandBuildRequests,
		const TArray< EMeshDrawCommandCullingPayloadFlags, SceneRenderingAllocator >	DynamicMeshCommandBuildFlags,
		int32	MaxNumBuildRequestElements,
		FMeshCommandOneFrameArray &	VisibleCommands,
		FDynamicMeshDrawCommandStorage &	MeshDrawCommandStorage,
		FGraphicsMinimalPipelineStateSet &	MinimalPipelineStatePassSet,
		bool &	NeedsShaderInitialisation
	)

Converts each FMeshBatch into a set of FMeshDrawCommands for a specific mesh pass type.

GenerateMobileBasePassDynamicMeshDrawCommands()

void GenerateMobileBasePassDynamicMeshDrawCommands	(	const FViewInfo &	View,
		EShadingPath	ShadingPath,
		EMeshPass::Type	PassType,
		FMeshPassProcessor *	PassMeshProcessor,
		FMeshPassProcessor *	MobilePassCSMPassMeshProcessor,
		const TArray< FMeshBatchAndRelevance, SceneRenderingAllocator > &	DynamicMeshElements,
		const TArray< FMeshPassMask, SceneRenderingAllocator > *	DynamicMeshElementsPassRelevance,
		int32	MaxNumDynamicMeshElements,
		const TArray< const FStaticMeshBatch *, SceneRenderingAllocator > &	DynamicMeshCommandBuildRequests,
		const TArray< EMeshDrawCommandCullingPayloadFlags, SceneRenderingAllocator >	DynamicMeshCommandBuildFlags,
		int32	MaxNumBuildRequestElements,
		FMeshCommandOneFrameArray &	VisibleCommands,
		FDynamicMeshDrawCommandStorage &	MeshDrawCommandStorage,
		FGraphicsMinimalPipelineStateSet &	GraphicsMinimalPipelineStateSet,
		bool &	NeedsShaderInitialisation
	)

Special version of GenerateDynamicMeshDrawCommands for the mobile base pass. Based on CSM visibility it will generate mesh draw commands using either normal base pass processor or CSM base pass processor.

MergeMobileBasePassMeshDrawCommands()

void MergeMobileBasePassMeshDrawCommands	(	const FMobileCSMVisibilityInfo &	MobileCSMVisibilityInfo,
		int32	ScenePrimitiveNum,
		FMeshCommandOneFrameArray &	MeshCommands,
		FMeshCommandOneFrameArray &	MeshCommandsCSM
	)

Merge mobile BasePass with BasePassCSM based on CSM visibility in order to select appropriate shader for given command.

SortAndMergeDynamicPassMeshDrawCommands()

void SortAndMergeDynamicPassMeshDrawCommands	(	const FSceneView &	SceneView,
		FRHICommandList &	RHICmdList,
		FMeshCommandOneFrameArray &	VisibleMeshDrawCommands,
		FDynamicMeshDrawCommandStorage &	MeshDrawCommandStorage,
		FRHIBuffer *&	OutPrimitiveIdVertexBuffer,
		uint32	InstanceFactor,
		const FGPUScenePrimitiveCollector *	DynamicPrimitiveCollector
	)

TranslatePrimitiveId()

FORCEINLINE int32 TranslatePrimitiveId	(	int32	DrawPrimitiveIdIn,
		int32	DynamicPrimitiveIdOffset,
		int32	DynamicPrimitiveIdMax
	)

UpdateMobilePassMeshSortKeys()

void UpdateMobilePassMeshSortKeys	(	const FVector &	ViewOrigin,
		const TScenePrimitiveArray< FPrimitiveBounds > &	ScenePrimitiveBounds,
		FMeshCommandOneFrameArray &	VisibleMeshCommands
	)

Compute mesh sort keys for the mobile base pass

UpdateTranslucentMeshSortKeys()

void UpdateTranslucentMeshSortKeys	(	ETranslucentSortPolicy::Type	TranslucentSortPolicy,
		const FVector &	TranslucentSortAxis,
		const FVector &	ViewOrigin,
		const FMatrix &	ViewMatrix,
		const TScenePrimitiveArray< FPrimitiveBounds > &	PrimitiveBounds,
		ETranslucencyPass::Type	TranslucencyPass,
		bool	bInverseSorting,
		FMeshCommandOneFrameArray &	VisibleMeshCommands
	)

Update mesh sort keys with view dependent data.

Variable Documentation

CPrio_FMeshDrawCommandPassSetupTask

FAutoConsoleTaskPriority CPrio_FMeshDrawCommandPassSetupTask(TEXT("TaskGraph.TaskPriorities.FMeshDrawCommandPassSetupTask"), TEXT("Task and thread priority for FMeshDrawCommandPassSetupTask."), ENamedThreads::NormalThreadPriority, ENamedThreads::HighTaskPriority)	(	TEXT("TaskGraph.TaskPriorities.FMeshDrawCommandPassSetupTask")	,
		TEXT("Task and thread priority for FMeshDrawCommandPassSetupTask.")	,
		ENamedThreads::NormalThreadPriority	,
		ENamedThreads::HighTaskPriority
	)

GPrimitiveIdVertexBufferPool

TGlobalResource<FPrimitiveIdVertexBufferPool> GPrimitiveIdVertexBufferPool