#include <ParticleEmitterInstances.h>

Inheritance diagram for FParticleAnimTrailEmitterInstance:

Public Member Functions
	FParticleAnimTrailEmitterInstance (IParticleEmitterInstanceOwner &InComponent)

virtual	~FParticleAnimTrailEmitterInstance ()

virtual void	InitParameters (UParticleEmitter *InTemplate) override

virtual void	RecalculateTangentAndInterpolationParam (FBaseParticle PrevParticle, FAnimTrailTypeDataPayload PrevTrailData, FBaseParticle CurrParticle, FAnimTrailTypeDataPayload CurrTrailData, FBaseParticle NextParticle, FAnimTrailTypeDataPayload NextTrailData)

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

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

virtual float	Spawn (float DeltaTime) override

virtual void	SetupTrailModules () override

void	ResolveSource ()

virtual void	UpdateSourceData (float DeltaTime, bool bFirstTime) override

void	UpdateBoundingBox (float DeltaTime) override

void	ForceUpdateBoundingBox () override

void	DetermineVertexAndTriangleCount ()

virtual bool	HasCompleted () 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 bool	IsTrailEmitter () const override

virtual void	BeginTrail () override

virtual void	EndTrail () override

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

bool	IsTrailActive () const

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	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 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 bool	IsDynamicDataRequired (UParticleLODLevel *CurrentLODLevel)

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	OnEmitterInstanceKilled (FParticleEmitterInstance *Instance)

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 ENGINE_API void	ApplyWorldOffset (FVector InOffset, bool bWorldShift)

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
UParticleModuleTypeDataAnimTrail *	TrailTypeData

UParticleModuleSpawnPerUnit *	SpawnPerUnitModule

FName	FirstSocketName

FName	SecondSocketName

float	Width

ETrailWidthMode	WidthMode

const void *	Owner

bool	bTagTrailAsDead

bool	bTrailEnabled

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

void	SpawnParticle (int32 &StartParticleIndex, const struct FAnimTrailParticleSpawnParams &Params)

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

virtual void	PrintAllActiveParticles () override

virtual void	PrintTrails () 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)

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

◆ FParticleAnimTrailEmitterInstance()

FParticleAnimTrailEmitterInstance::FParticleAnimTrailEmitterInstance ( IParticleEmitterInstanceOwner & InComponent )

Constructor

◆ ~FParticleAnimTrailEmitterInstance()

FParticleAnimTrailEmitterInstance::~FParticleAnimTrailEmitterInstance ( )

virtual

Destructor

Member Function Documentation

◆ BeginTrail()

void FParticleAnimTrailEmitterInstance::BeginTrail ( )

overridevirtual

Begins the trail.

Reimplemented from FParticleEmitterInstance.

◆ DetermineVertexAndTriangleCount()

void FParticleAnimTrailEmitterInstance::DetermineVertexAndTriangleCount ( )

Determine the number of vertices and triangles in each trail

◆ EndTrail()

void FParticleAnimTrailEmitterInstance::EndTrail ( )

overridevirtual

Ends the trail.

Reimplemented from FParticleEmitterInstance.

◆ FillReplayData()

bool FParticleAnimTrailEmitterInstance::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.

◆ ForceUpdateBoundingBox()

void FParticleAnimTrailEmitterInstance::ForceUpdateBoundingBox ( )

overridevirtual

Force the bounding box to be updated.

Reimplemented from FParticleTrailsEmitterInstance_Base.

◆ GetAllocatedSize()

void FParticleAnimTrailEmitterInstance::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 * FParticleAnimTrailEmitterInstance::GetDynamicData	(	bool	bSelected,
		ERHIFeatureLevel::Type	InFeatureLevel
	)

overridevirtual

Retrieves the dynamic data for the emitter

Reimplemented from FParticleEmitterInstance.

◆ GetReplayData()

FDynamicEmitterReplayDataBase * FParticleAnimTrailEmitterInstance::GetReplayData ( )

overridevirtual

Retrieves replay data for the emitter

Returns: The replay data, or NULL on failure

Reimplemented from FParticleEmitterInstance.

◆ GetResourceSizeEx()

void FParticleAnimTrailEmitterInstance::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 FParticleAnimTrailEmitterInstance::GetSpawnPerUnitAmount	(	float	DeltaTime,
		int32	InTrailIdx,
		int32 &	OutCount,
		float &	OutRate
	)

virtual

◆ HasCompleted()

bool FParticleAnimTrailEmitterInstance::HasCompleted ( )

overridevirtual

Has the instance completed it's run?

Returns: bool true if the instance is completed, false if not

Reimplemented from FParticleEmitterInstance.

◆ InitParameters()

void FParticleAnimTrailEmitterInstance::InitParameters ( UParticleEmitter * InTemplate )

overridevirtual

Reimplemented from FParticleTrailsEmitterInstance_Base.

◆ IsTrailActive()

bool FParticleAnimTrailEmitterInstance::IsTrailActive ( ) const

◆ IsTrailEmitter()

virtual bool FParticleAnimTrailEmitterInstance::IsTrailEmitter ( ) const

inlineoverridevirtual

Reimplemented from FParticleEmitterInstance.

◆ PrintAllActiveParticles()

void FParticleAnimTrailEmitterInstance::PrintAllActiveParticles ( )

overrideprotectedvirtual

Prints out info for all active particles.

Reimplemented from FParticleTrailsEmitterInstance_Base.

◆ PrintParticleData()

void FParticleAnimTrailEmitterInstance::PrintParticleData	(	FBaseParticle *	Particle,
		FTrailsBaseTypeDataPayload *	TrailData,
		int32	CurrentIndex,
		int32	TrailIndex
	)

overrideprotectedvirtual

Prints out info for a single particle.

Reimplemented from FParticleTrailsEmitterInstance_Base.

◆ PrintTrails()

void FParticleAnimTrailEmitterInstance::PrintTrails ( )

overrideprotectedvirtual

Traverses all trails and prints out debugging info.

Reimplemented from FParticleTrailsEmitterInstance_Base.

◆ RecalculateTangentAndInterpolationParam()

void FParticleAnimTrailEmitterInstance::RecalculateTangentAndInterpolationParam	(	FBaseParticle *	PrevParticle,
		FAnimTrailTypeDataPayload *	PrevTrailData,
		FBaseParticle *	CurrParticle,
		FAnimTrailTypeDataPayload *	CurrTrailData,
		FBaseParticle *	NextParticle,
		FAnimTrailTypeDataPayload *	NextTrailData
	)

virtual

Helper function for recalculating tangents and the spline interpolation parameter...

Parameters

PrevParticle	The previous particle in the trail
PrevTrailData	The payload of the previous particle in the trail
CurrParticle	The current particle in the trail
CurrTrailData	The payload of the current particle in the trail
NextParticle	The next particle in the trail
NextTrailData	The payload of the next particle in the trail

Helper function for recalculating tangents and the interpolation parameter for this particle...

Parameters

PrevParticle	The previous particle in the trail
PrevTrailData	The payload of the previous particle in the trail
CurrParticle	The current particle in the trail
CurrTrailData	The payload of the current particle in the trail
NextParticle	The next particle in the trail
NextTrailData	The payload of the next particle in the trail

◆ ResolveSource()

void FParticleAnimTrailEmitterInstance::ResolveSource ( )

◆ SetTrailSourceData()

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

overridevirtual

Sets the date that defines this trail.

Parameters

InFirstSocketName	The name of the first socket for the trail.
InSecondSocketName	The name of the second socket for the trail.
InWidthMode	How the width value is applied to the trail.
InWidth	The width of the trail.

Reimplemented from FParticleEmitterInstance.

◆ SetupTrailModules()

void FParticleAnimTrailEmitterInstance::SetupTrailModules ( )

overridevirtual

Reimplemented from FParticleTrailsEmitterInstance_Base.

◆ Spawn()

float FParticleAnimTrailEmitterInstance::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.

◆ SpawnParticle()

void FParticleAnimTrailEmitterInstance::SpawnParticle	(	int32 &	StartParticleIndex,
		const struct FAnimTrailParticleSpawnParams &	Params
	)

protected

Helper to spawn a trail particle during SpawnParticles().

Parameters

StartParticleIndex	Index of the particle at the start of the trail. Is altered in the function.
Params	Various parameters for spawning.

Interpolation factor for the current particle between the non interpolated particles either side of it.

◆ Tick_RecalculateTangents()

void FParticleAnimTrailEmitterInstance::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.

◆ UpdateBoundingBox()

void FParticleAnimTrailEmitterInstance::UpdateBoundingBox ( float DeltaTime )

overridevirtual

Update the bounding box for the emitter

Parameters

DeltaTime The time slice to use

Reimplemented from FParticleTrailsEmitterInstance_Base.

◆ UpdateSourceData()

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

overridevirtual

Reimplemented from FParticleTrailsEmitterInstance_Base.

Member Data Documentation

◆ bTagTrailAsDead

bool FParticleAnimTrailEmitterInstance::bTagTrailAsDead

When set, the current trail will be marked as dead in the next tick.

◆ bTrailEnabled

bool FParticleAnimTrailEmitterInstance::bTrailEnabled

Whether new particles should be spawned.

◆ FirstSocketName

FName FParticleAnimTrailEmitterInstance::FirstSocketName

The name of the socket that supplies the first edge for this emitter.

◆ HeadOnlyParticles

int32 FParticleAnimTrailEmitterInstance::HeadOnlyParticles

Editor only variables controlling the debug rendering for trails. The number of particles in the trail which are either marked

◆ Owner

const void* FParticleAnimTrailEmitterInstance::Owner

The owner of this trail. Used only for assosiating trail with it's creator in some cases. E.g. AnimNotifyState_Trail. Do not use.

◆ SecondSocketName

FName FParticleAnimTrailEmitterInstance::SecondSocketName

The name of the socket that supplies the second edge for this emitter.

◆ SpawnPerUnitModule

UParticleModuleSpawnPerUnit* FParticleAnimTrailEmitterInstance::SpawnPerUnitModule

SpawnPerUnit module (hijacking it for trails here)

◆ TrailTypeData

UParticleModuleTypeDataAnimTrail* FParticleAnimTrailEmitterInstance::TrailTypeData

The TypeData module for this trail emitter

◆ Width

float FParticleAnimTrailEmitterInstance::Width

The width of the trail.

◆ WidthMode

ETrailWidthMode FParticleAnimTrailEmitterInstance::WidthMode

How the width is applied to the trail.

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

◆ FParticleAnimTrailEmitterInstance()

◆ ~FParticleAnimTrailEmitterInstance()

Member Function Documentation

◆ BeginTrail()

◆ DetermineVertexAndTriangleCount()

◆ EndTrail()

◆ FillReplayData()

◆ ForceUpdateBoundingBox()

◆ GetAllocatedSize()

◆ GetDynamicData()

◆ GetReplayData()

◆ GetResourceSizeEx()

◆ GetSpawnPerUnitAmount()

◆ HasCompleted()

◆ InitParameters()

◆ IsTrailActive()

◆ IsTrailEmitter()

◆ PrintAllActiveParticles()

◆ PrintParticleData()

◆ PrintTrails()

◆ RecalculateTangentAndInterpolationParam()

◆ ResolveSource()

◆ SetTrailSourceData()

◆ SetupTrailModules()

◆ Spawn()

◆ SpawnParticle()

◆ Tick_RecalculateTangents()

◆ UpdateBoundingBox()

◆ UpdateSourceData()

Member Data Documentation

◆ bTagTrailAsDead

◆ bTrailEnabled

◆ FirstSocketName

◆ HeadOnlyParticles

◆ Owner

◆ SecondSocketName

◆ SpawnPerUnitModule

◆ TrailTypeData

◆ Width

◆ WidthMode