#include <ParticleEmitterInstances.h>

Inheritance diagram for FParticleRibbonEmitterInstance:

Public Member Functions
	FParticleRibbonEmitterInstance (IParticleEmitterInstanceOwner &InComponent)

virtual	~FParticleRibbonEmitterInstance ()

virtual void	InitParameters (UParticleEmitter *InTemplate) override

virtual void	Tick_RecalculateTangents (float DeltaTime, UParticleLODLevel *CurrentLODLevel) override

virtual bool	GetSpawnPerUnitAmount (float DeltaTime, int32 InTrailIdx, int32 &OutCount, float &OutRate)

void	GetParticleLifetimeAndSize (int32 InTrailIdx, const FBaseParticle *InParticle, bool bInNoLivingParticles, float &OutOneOverMaxLifetime, float &OutSize)

virtual float	Spawn (float DeltaTime) override

bool	Spawn_Source (float DeltaTime)

float	Spawn_RateAndBurst (float DeltaTime)

virtual void	SetupTrailModules () override

void	ResolveSource ()

virtual void	UpdateSourceData (float DeltaTime, bool bFirstTime) override

bool	ResolveSourcePoint (int32 InTrailIdx, FVector &OutPosition, FQuat &OutRotation, FVector &OutUp, FVector &OutTangent, float &OutTangentStrength)

void	DetermineVertexAndTriangleCount ()

virtual bool	IsDynamicDataRequired (UParticleLODLevel *CurrentLODLevel) override

virtual FDynamicEmitterDataBase *	GetDynamicData (bool bSelected, ERHIFeatureLevel::Type InFeatureLevel) override

virtual FDynamicEmitterReplayDataBase *	GetReplayData () override

virtual void	GetAllocatedSize (int32 &OutNum, int32 &OutMax) override

virtual void	GetResourceSizeEx (FResourceSizeEx &CumulativeResourceSize) override

virtual void	OnEmitterInstanceKilled (FParticleEmitterInstance *Instance) override

virtual void	ApplyWorldOffset (FVector InOffset, bool bWorldShift) override

Public Member Functions inherited from FParticleTrailsEmitterInstance_Base
template<typename TrailDataType >
void	GetTrailStart (const int32 TrailIdx, int32 &OutStartIndex, TrailDataType &OutTrailData, FBaseParticle &OutParticle)

template<typename TrailDataType >
void	GetTrailEnd (const int32 TrailIdx, int32 &OutEndIndex, TrailDataType &OutTrailData, FBaseParticle &OutParticle)

void	SetStartIndex (int32 TrailIndex, int32 ParticleIndex)

void	SetEndIndex (int32 TrailIndex, int32 ParticleIndex)

void	SetDeadIndex (int32 TrailIndex, int32 ParticleIndex)

void	ClearIndices (int32 TrailIndex, int32 ParticleIndex)

void	CheckIndices (int32 TrailIdx)

void	CheckAllIndices ()

void	DumpCircularTrailsSpam ()

bool	CheckForCircularTrail (FBaseParticle StartParticle, FBaseParticle CheckParticle)

	FParticleTrailsEmitterInstance_Base (IParticleEmitterInstanceOwner &InComponent)

virtual	~FParticleTrailsEmitterInstance_Base ()

virtual void	Init () override

virtual void	Tick (float DeltaTime, bool bSuppressSpawning) override

bool	AddParticleHelper (int32 InTrailIdx, int32 StartParticleIndex, FTrailsBaseTypeDataPayload StartTrailData, int32 ParticleIndex, FTrailsBaseTypeDataPayload TrailData)

virtual void	UpdateBoundingBox (float DeltaTime) override

virtual void	ForceUpdateBoundingBox () override

virtual void	KillParticles () override

virtual void	KillParticles (int32 InTrailIdx, int32 InKillCount)

virtual void	OnDeactivateSystem () override

Public Member Functions inherited from FParticleEmitterInstance
ENGINE_API	FParticleEmitterInstance (IParticleEmitterInstanceOwner &InComponent)

virtual ENGINE_API	~FParticleEmitterInstance ()

virtual ENGINE_API bool	Resize (int32 NewMaxActiveParticles, bool bSetMaxActiveCount=true)

ENGINE_API void	CheckEmitterFinished ()

ENGINE_API void	FakeBursts ()

virtual ENGINE_API float	Tick_EmitterTimeSetup (float DeltaTime, UParticleLODLevel *CurrentLODLevel)

virtual ENGINE_API float	Tick_SpawnParticles (float DeltaTime, UParticleLODLevel *CurrentLODLevel, bool bSuppressSpawning, bool bFirstTime)

virtual ENGINE_API void	Tick_ModuleUpdate (float DeltaTime, UParticleLODLevel *CurrentLODLevel)

virtual ENGINE_API void	Tick_ModulePostUpdate (float DeltaTime, UParticleLODLevel *CurrentLODLevel)

virtual ENGINE_API void	Tick_ModuleFinalUpdate (float DeltaTime, UParticleLODLevel *CurrentLODLevel)

virtual ENGINE_API void	SetCurrentLODIndex (int32 InLODIndex, bool bInFullyProcess)

virtual ENGINE_API void	Rewind ()

virtual ENGINE_API FBox	GetBoundingBox ()

virtual ENGINE_API uint32	RequiredBytes ()

ENGINE_API uint32	GetModuleDataOffset (UParticleModule *Module)

ENGINE_API uint8 *	GetModuleInstanceData (UParticleModule *Module)

ENGINE_API FParticleRandomSeedInstancePayload *	GetModuleRandomSeedInstanceData (UParticleModule *Module)

virtual ENGINE_API uint8 *	GetTypeDataModuleInstanceData ()

virtual ENGINE_API uint32	CalculateParticleStride (uint32 ParticleSize)

virtual ENGINE_API void	ResetBurstList ()

virtual ENGINE_API float	GetCurrentBurstRateOffset (float &DeltaTime, int32 &Burst)

virtual ENGINE_API void	ResetParticleParameters (float DeltaTime)

ENGINE_API void	CalculateOrbitOffset (FOrbitChainModuleInstancePayload &Payload, FVector &AccumOffset, FVector &AccumRotation, FVector &AccumRotationRate, float DeltaTime, FVector &Result, FMatrix &RotationMat)

virtual ENGINE_API void	UpdateOrbitData (float DeltaTime)

virtual ENGINE_API void	ParticlePrefetch ()

ENGINE_API void	SpawnParticles (int32 Count, float StartTime, float Increment, const FVector &InitialLocation, const FVector &InitialVelocity, struct FParticleEventInstancePayload *EventPayload)

virtual ENGINE_API void	ForceSpawn (float DeltaTime, int32 InSpawnCount, int32 InBurstCount, FVector &InLocation, FVector &InVelocity)

ENGINE_API void	CheckSpawnCount (int32 InNewCount, int32 InMaxCount)

virtual ENGINE_API void	PreSpawn (FBaseParticle *Particle, const FVector &InitialLocation, const FVector &InitialVelocity)

virtual ENGINE_API void	PostSpawn (FBaseParticle *Particle, float InterpolationPercentage, float SpawnTime)

virtual ENGINE_API bool	HasCompleted ()

virtual ENGINE_API void	KillParticle (int32 Index)

virtual ENGINE_API void	KillParticlesForced (bool bFireEvents=false)

virtual void	SetHaltSpawning (bool bInHaltSpawning)

virtual void	SetHaltSpawningExternal (bool bInHaltSpawning)

void	SetFakeBurstWhenSpawningSupressed (bool bInFakeBurstsWhenSpawningSupressed)

ENGINE_API int32	GetOrbitPayloadOffset ()

ENGINE_API FVector	GetParticleLocationWithOrbitOffset (FBaseParticle *Particle)

virtual ENGINE_API FBaseParticle *	GetParticle (int32 Index)

int32	GetParticleDirectIndex (int32 InIndex)

virtual ENGINE_API FBaseParticle *	GetParticleDirect (int32 InDirectIndex)

ENGINE_API void	SetupEmitterDuration ()

bool	HasActiveParticles ()

virtual ENGINE_API void	ProcessParticleEvents (float DeltaTime, bool bSuppressSpawning)

virtual int32	GetMeshRotationOffset () const

virtual bool	IsMeshRotationActive () const

virtual void	SetMeshMaterials (const TArray< UMaterialInterface * > &InMaterials)

virtual ENGINE_API void	GatherMaterialRelevance (FMaterialRelevance OutMaterialRelevance, const UParticleLODLevel LODLevel, ERHIFeatureLevel::Type InFeatureLevel) const

virtual ENGINE_API void	GatherMaterialRelevance (FMaterialRelevance OutMaterialRelevance, const UParticleLODLevel LODLevel, EShaderPlatform InShaderPlatform) const

virtual void	SetBeamEndPoint (FVector NewEndPoint)

virtual void	SetBeamSourcePoint (FVector NewSourcePoint, int32 SourceIndex)

virtual void	SetBeamSourceTangent (FVector NewTangentPoint, int32 SourceIndex)

virtual void	SetBeamSourceStrength (float NewSourceStrength, int32 SourceIndex)

virtual void	SetBeamTargetPoint (FVector NewTargetPoint, int32 TargetIndex)

virtual void	SetBeamTargetTangent (FVector NewTangentPoint, int32 TargetIndex)

virtual void	SetBeamTargetStrength (float NewTargetStrength, int32 TargetIndex)

virtual bool	GetBeamEndPoint (FVector &OutEndPoint) const

virtual bool	GetBeamSourcePoint (int32 SourceIndex, FVector &OutSourcePoint) const

virtual bool	GetBeamSourceTangent (int32 SourceIndex, FVector &OutTangentPoint) const

virtual bool	GetBeamSourceStrength (int32 SourceIndex, float &OutSourceStrength) const

virtual bool	GetBeamTargetPoint (int32 TargetIndex, FVector &OutTargetPoint) const

virtual bool	GetBeamTargetTangent (int32 TargetIndex, FVector &OutTangentPoint) const

virtual bool	GetBeamTargetStrength (int32 TargetIndex, float &OutTargetStrength) const

virtual bool	IsTrailEmitter () const

virtual void	BeginTrail ()

virtual void	EndTrail ()

virtual void	SetTrailSourceData (FName InFirstSocketName, FName InSecondSocketName, ETrailWidthMode InWidthMode, float InWidth)

virtual ENGINE_API void	Tick_MaterialOverrides (int32 EmitterIndex)

ENGINE_API bool	UseLocalSpace ()

ENGINE_API void	GetScreenAlignmentAndScale (int32 &OutScreenAlign, FVector &OutScale)

Public Member Functions inherited from FParticleEmitterInstanceFixLayout
virtual	~FParticleEmitterInstanceFixLayout ()=default

Public Attributes
UParticleModuleTypeDataRibbon *	TrailTypeData

UParticleModuleSpawnPerUnit *	SpawnPerUnitModule

UParticleModuleTrailSource *	SourceModule

int32	TrailModule_Source_Offset

TArray< FVector >	CurrentSourcePosition

TArray< FQuat >	CurrentSourceRotation

TArray< FVector >	CurrentSourceUp

TArray< FVector >	CurrentSourceTangent

TArray< float >	CurrentSourceTangentStrength

TArray< FVector >	LastSourcePosition

TArray< FQuat >	LastSourceRotation

TArray< FVector >	LastSourceUp

TArray< FVector >	LastSourceTangent

TArray< float >	LastSourceTangentStrength

AActor *	SourceActor

TArray< FVector >	SourceOffsets

FParticleEmitterInstance *	SourceEmitter

int32	LastSelectedParticleIndex

TArray< int32 >	SourceIndices

TArray< float >	SourceTimes

TArray< float >	LastSourceTimes

TArray< float >	CurrentLifetimes

TArray< float >	CurrentSizes

int32	HeadOnlyParticles

Public Attributes inherited from FParticleTrailsEmitterInstance_Base
int32	VertexCount

int32	TriangleCount

int32	TrailCount

int32	MaxTrailCount

float	RunningTime

float	LastTickTime

uint32	bDeadTrailsOnDeactivate:1

TArray< float >	TrailSpawnTimes

TArray< float >	LastSpawnTime

TArray< float >	SourceDistanceTraveled

TArray< float >	TiledUDistanceTraveled

uint32	bFirstUpdate:1

uint32	bEnableInactiveTimeTracking:1

Public Attributes inherited from FParticleEmitterInstance
UParticleEmitter *	SpriteTemplate

IParticleEmitterInstanceOwner &	Component

UParticleLODLevel *	CurrentLODLevel

int32	CurrentLODLevelIndex

int32	TypeDataOffset

int32	TypeDataInstanceOffset

int32	SubUVDataOffset

int32	DynamicParameterDataOffset

int32	LightDataOffset

float	LightVolumetricScatteringIntensity

int32	OrbitModuleOffset

int32	CameraPayloadOffset

int32	PayloadOffset

FVector	Location

FMatrix	EmitterToSimulation

FMatrix	SimulationToWorld

uint8	bEnabled: 1

uint8	bKillOnDeactivate:1

uint8	bKillOnCompleted:1

uint8	bRequiresSorting:1

uint8	bHaltSpawning: 1

uint8	bHaltSpawningExternal: 1

uint8	bRequiresLoopNotification:1

uint8	bIgnoreComponentScale:1

uint8	bIsBeam:1

uint8	bAxisLockEnabled: 1

uint8	bFakeBurstsWhenSpawningSupressed: 1

uint8	bEmitterIsDone:1

TEnumAsByte< EParticleAxisLock >	LockAxisFlags

int32	SortMode

uint8 *	ParticleData

uint16 *	ParticleIndices

uint8 *	InstanceData

int32	InstancePayloadSize

int32	ParticleSize

int32	ParticleStride

int32	ActiveParticles

uint32	ParticleCounter

int32	MaxActiveParticles

float	SpawnFraction

float	SecondsSinceCreation

float	EmitterTime

float	LastDeltaTime

FVector	OldLocation

FBox	ParticleBoundingBox

TArray< struct FLODBurstFired >	BurstFired

int32	LoopCount

int32	IsRenderDataDirty

float	EmitterDuration

TArray< float >	EmitterDurations

float	CurrentDelay

int32	TrianglesToRender

int32	MaxVertexIndex

UMaterialInterface *	CurrentMaterial

int32	EventCount

int32	MaxEventCount

FVector	PositionOffsetThisTick

FVector2D	PivotOffset

TArray< class UPointLightComponent * >	HighQualityLights

Protected Member Functions
virtual bool	FillReplayData (FDynamicEmitterReplayDataBase &OutData) override

Protected Member Functions inherited from FParticleTrailsEmitterInstance_Base
UMaterialInterface *	GetCurrentMaterial ()

bool	GetParticleInTrail (bool bSkipStartingParticle, FBaseParticle InStartingFromParticle, FTrailsBaseTypeDataPayload InStartingTrailData, EGetTrailDirection InGetDirection, EGetTrailParticleOption InGetOption, FBaseParticle &OutParticle, FTrailsBaseTypeDataPayload &OutTrailData)

virtual void	PrintParticleData (FBaseParticle Particle, FTrailsBaseTypeDataPayload TrailData, int32 CurrentIndex, int32 TrailIndex)

virtual void	PrintAllActiveParticles ()

virtual void	PrintTrails ()

Protected Member Functions inherited from FParticleEmitterInstance
ENGINE_API void	UpdateTransforms ()

ENGINE_API class UParticleLODLevel *	GetCurrentLODLevelChecked ()

ENGINE_API UMaterialInterface *	GetCurrentMaterial ()

ENGINE_API void	FixupParticleIndices ()

Additional Inherited Members
Static Public Attributes inherited from FParticleEmitterInstance
static ENGINE_API const float	PeakActiveParticleUpdateDelta = 0.05f

Protected Types inherited from FParticleTrailsEmitterInstance_Base
enum	EGetTrailDirection { GET_Prev , GET_Next }

enum	EGetTrailParticleOption { GET_Any , GET_Spawned , GET_Interpolated , GET_Start , GET_End }

Constructor & Destructor Documentation

◆ FParticleRibbonEmitterInstance()

FParticleRibbonEmitterInstance::FParticleRibbonEmitterInstance ( IParticleEmitterInstanceOwner & InComponent )

Constructor

◆ ~FParticleRibbonEmitterInstance()

FParticleRibbonEmitterInstance::~FParticleRibbonEmitterInstance ( )

virtual

Destructor

Member Function Documentation

◆ ApplyWorldOffset()

void FParticleRibbonEmitterInstance::ApplyWorldOffset	(	FVector	InOffset,
		bool	bWorldShift
	)

overridevirtual

Called on world origin changes

Reimplemented from FParticleEmitterInstance.

◆ DetermineVertexAndTriangleCount()

void FParticleRibbonEmitterInstance::DetermineVertexAndTriangleCount ( )

Determine the number of vertices and triangles in each trail

◆ FillReplayData()

bool FParticleRibbonEmitterInstance::FillReplayData ( FDynamicEmitterReplayDataBase & OutData )

overrideprotectedvirtual

Captures dynamic replay data for this particle system.

Parameters

OutData [Out] Data will be copied here

Returns: Returns true if successful

Reimplemented from FParticleEmitterInstance.

◆ GetAllocatedSize()

void FParticleRibbonEmitterInstance::GetAllocatedSize	(	int32 &	OutNum,
		int32 &	OutMax
	)

overridevirtual

Retrieve the allocated size of this instance.

Parameters

OutNum	The size of this instance
OutMax	The maximum size of this instance

Reimplemented from FParticleEmitterInstance.

◆ GetDynamicData()

FDynamicEmitterDataBase * FParticleRibbonEmitterInstance::GetDynamicData	(	bool	bSelected,
		ERHIFeatureLevel::Type	InFeatureLevel
	)

overridevirtual

Retrieves the dynamic data for the emitter

Reimplemented from FParticleEmitterInstance.

◆ GetParticleLifetimeAndSize()

void FParticleRibbonEmitterInstance::GetParticleLifetimeAndSize	(	int32	InTrailIdx,
		const FBaseParticle *	InParticle,
		bool	bInNoLivingParticles,
		float &	OutOneOverMaxLifetime,
		float &	OutSize
	)

Get the lifetime and size for a particle being added to the given trail

Parameters

InTrailIdx	The index of the trail the particle is being added to
InParticle	The particle that is being added
bInNoLivingParticles	true if there are no particles in the trail, false if there already are
OutOneOverMaxLifetime	The OneOverMaxLifetime value to use for the particle
OutSize	The Size value to use for the particle

◆ GetReplayData()

FDynamicEmitterReplayDataBase * FParticleRibbonEmitterInstance::GetReplayData ( )

overridevirtual

Retrieves replay data for the emitter

Returns: The replay data, or NULL on failure

Reimplemented from FParticleEmitterInstance.

◆ GetResourceSizeEx()

void FParticleRibbonEmitterInstance::GetResourceSizeEx ( FResourceSizeEx & CumulativeResourceSize )

overridevirtual

Returns the size of the object/ resource for display to artists/ LDs in the Editor.

Parameters

Mode	Specifies which resource size should be displayed. ( see EResourceSizeMode::Type )

Returns: Size of resource as to be displayed to artists/ LDs in the Editor.

Reimplemented from FParticleEmitterInstance.

◆ GetSpawnPerUnitAmount()

bool FParticleRibbonEmitterInstance::GetSpawnPerUnitAmount	(	float	DeltaTime,
		int32	InTrailIdx,
		int32 &	OutCount,
		float &	OutRate
	)

virtual

◆ InitParameters()

void FParticleRibbonEmitterInstance::InitParameters ( UParticleEmitter * InTemplate )

overridevirtual

Reimplemented from FParticleTrailsEmitterInstance_Base.

◆ IsDynamicDataRequired()

bool FParticleRibbonEmitterInstance::IsDynamicDataRequired ( UParticleLODLevel * InCurrentLODLevel )

overridevirtual

Checks some common values for GetDynamicData validity

Returns: bool true if GetDynamicData should continue, false if it should return NULL

Reimplemented from FParticleEmitterInstance.

◆ OnEmitterInstanceKilled()

virtual void FParticleRibbonEmitterInstance::OnEmitterInstanceKilled ( FParticleEmitterInstance * Instance )

inlineoverridevirtual

When an emitter is killed, this will check other emitters and clean up anything pointing to this one

Reimplemented from FParticleEmitterInstance.

◆ ResolveSource()

void FParticleRibbonEmitterInstance::ResolveSource ( )

◆ ResolveSourcePoint()

bool FParticleRibbonEmitterInstance::ResolveSourcePoint	(	int32	InTrailIdx,
		FVector &	OutPosition,
		FQuat &	OutRotation,
		FVector &	OutUp,
		FVector &	OutTangent,
		float &	OutTangentStrength
	)

Resolve the source point for the given trail index.

Parameters

InTrailIdx	The index of the trail to resolve
OutPosition	The position of the source
OutRotation	The rotation of the source
OutUp	The 'up' of the source (if required)
OutTangent	The tangent of the source
OutTangentStrength	The strength of the tangent of the source

Returns: bool true if successful, false if not

◆ SetupTrailModules()

void FParticleRibbonEmitterInstance::SetupTrailModules ( )

overridevirtual

Reimplemented from FParticleTrailsEmitterInstance_Base.

◆ Spawn()

float FParticleRibbonEmitterInstance::Spawn ( float DeltaTime )

overridevirtual

Spawn particles for this emitter instance

Parameters

DeltaTime The time slice to spawn over

Returns: float The leftover fraction of spawning

Reimplemented from FParticleEmitterInstance.

◆ Spawn_RateAndBurst()

float FParticleRibbonEmitterInstance::Spawn_RateAndBurst ( float DeltaTime )

Spawn ribbon particles from SpawnRate and Burst settings.

Parameters

DeltaimTime The current time slice

Returns: float The spawnfraction left over from this time slice

◆ Spawn_Source()

bool FParticleRibbonEmitterInstance::Spawn_Source ( float DeltaTime )

Spawn source-based ribbon particles.

Parameters

DeltaTime The current time slice

Returns: bool true if SpawnRate should be processed.

◆ Tick_RecalculateTangents()

void FParticleRibbonEmitterInstance::Tick_RecalculateTangents	(	float	DeltaTime,
		UParticleLODLevel *	InCurrentLODLevel
	)

overridevirtual

Tick sub-function that handles recalculation of tangents

Parameters

DeltaTime	The current time slice
CurrentLODLevel	The current LOD level for the instance

Reimplemented from FParticleTrailsEmitterInstance_Base.

◆ UpdateSourceData()

void FParticleRibbonEmitterInstance::UpdateSourceData	(	float	DeltaTime,
		bool	bFirstTime
	)

overridevirtual

Reimplemented from FParticleTrailsEmitterInstance_Base.

Member Data Documentation

◆ CurrentLifetimes

TArray<float> FParticleRibbonEmitterInstance::CurrentLifetimes

The lifetime to use for each ribbon

◆ CurrentSizes

TArray<float> FParticleRibbonEmitterInstance::CurrentSizes

The size to use for each ribbon

◆ CurrentSourcePosition

TArray<FVector> FParticleRibbonEmitterInstance::CurrentSourcePosition

The current source position for each trail in this emitter

◆ CurrentSourceRotation

TArray<FQuat> FParticleRibbonEmitterInstance::CurrentSourceRotation

The current source rotation for each trail in this emitter

◆ CurrentSourceTangent

TArray<FVector> FParticleRibbonEmitterInstance::CurrentSourceTangent

The current source tangent for each trail in this emitter

◆ CurrentSourceTangentStrength

TArray<float> FParticleRibbonEmitterInstance::CurrentSourceTangentStrength

The current source tangent strength for each trail in this emitter

◆ CurrentSourceUp

TArray<FVector> FParticleRibbonEmitterInstance::CurrentSourceUp

The current source up for each trail in this emitter

◆ HeadOnlyParticles

int32 FParticleRibbonEmitterInstance::HeadOnlyParticles

The direct index of the particle that is the start of each ribbon If true, then do not render the source (a real spawn just happened) The number of "head only" active particles

◆ LastSelectedParticleIndex

int32 FParticleRibbonEmitterInstance::LastSelectedParticleIndex

The last selected source index (for sequential selection)

◆ LastSourcePosition

TArray<FVector> FParticleRibbonEmitterInstance::LastSourcePosition

The previous source position for each trail in this emitter

◆ LastSourceRotation

TArray<FQuat> FParticleRibbonEmitterInstance::LastSourceRotation

The last source rotation for each trail in this emitter

◆ LastSourceTangent

TArray<FVector> FParticleRibbonEmitterInstance::LastSourceTangent

The previous source tangent for each trail in this emitter

◆ LastSourceTangentStrength

TArray<float> FParticleRibbonEmitterInstance::LastSourceTangentStrength

The previous source tangent strength for each trail in this emitter

◆ LastSourceTimes

TArray<float> FParticleRibbonEmitterInstance::LastSourceTimes

The time of the last partice source update

◆ LastSourceUp

TArray<FVector> FParticleRibbonEmitterInstance::LastSourceUp

The previous source up for each trail in this emitter

◆ SourceActor

AActor* FParticleRibbonEmitterInstance::SourceActor

If the source is an actor, this is it

◆ SourceEmitter

FParticleEmitterInstance* FParticleRibbonEmitterInstance::SourceEmitter

If the source is an emitter, this is it

◆ SourceIndices

TArray<int32> FParticleRibbonEmitterInstance::SourceIndices

The indices for the source of each trail (if required)

◆ SourceModule

UParticleModuleTrailSource* FParticleRibbonEmitterInstance::SourceModule

Source module

◆ SourceOffsets

TArray<FVector> FParticleRibbonEmitterInstance::SourceOffsets

The offset from the source for each trail in this emitter

◆ SourceTimes

TArray<float> FParticleRibbonEmitterInstance::SourceTimes

The time of the last partice source update

◆ SpawnPerUnitModule

UParticleModuleSpawnPerUnit* FParticleRibbonEmitterInstance::SpawnPerUnitModule

SpawnPerUnit module (hijacking it for trails here)

◆ TrailModule_Source_Offset

int32 FParticleRibbonEmitterInstance::TrailModule_Source_Offset

Payload offset for source module

◆ TrailTypeData

UParticleModuleTypeDataRibbon* FParticleRibbonEmitterInstance::TrailTypeData

The TypeData module for this trail emitter

The documentation for this struct was generated from the following files:

Engine/Source/Runtime/Engine/Public/ParticleEmitterInstances.h
Engine/Source/Runtime/Engine/Private/Particles/ParticleTrail2EmitterInstance.cpp

Public Member Functions

Public Attributes

Protected Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

◆ FParticleRibbonEmitterInstance()

◆ ~FParticleRibbonEmitterInstance()

Member Function Documentation

◆ ApplyWorldOffset()

◆ DetermineVertexAndTriangleCount()

◆ FillReplayData()

◆ GetAllocatedSize()

◆ GetDynamicData()

◆ GetParticleLifetimeAndSize()

◆ GetReplayData()

◆ GetResourceSizeEx()

◆ GetSpawnPerUnitAmount()

◆ InitParameters()

◆ IsDynamicDataRequired()

◆ OnEmitterInstanceKilled()

◆ ResolveSource()

◆ ResolveSourcePoint()

◆ SetupTrailModules()

◆ Spawn()

◆ Spawn_RateAndBurst()

◆ Spawn_Source()

◆ Tick_RecalculateTangents()

◆ UpdateSourceData()

Member Data Documentation

◆ CurrentLifetimes

◆ CurrentSizes

◆ CurrentSourcePosition

◆ CurrentSourceRotation

◆ CurrentSourceTangent

◆ CurrentSourceTangentStrength

◆ CurrentSourceUp

◆ HeadOnlyParticles

◆ LastSelectedParticleIndex

◆ LastSourcePosition

◆ LastSourceRotation

◆ LastSourceTangent

◆ LastSourceTangentStrength

◆ LastSourceTimes

◆ LastSourceUp

◆ SourceActor

◆ SourceEmitter

◆ SourceIndices

◆ SourceModule

◆ SourceOffsets

◆ SourceTimes

◆ SpawnPerUnitModule

◆ TrailModule_Source_Offset

◆ TrailTypeData