UE2:TrailEmitter (UT2004)

Object >> ParticleEmitter >> TrailEmitter

Package: 

Engine

Emitter: An Unreal Trail Particle Emitter. Revision history: Created by Daniel Vogel Updated by Laurent Delayen

Properties

Property group 'Trail'

DistanceThreshold

Type: float

Default value: 2.0

MaxPointsPerTrail

Type: int

Default value: 30

MaxTrailTwistAngle

Type: int

Default value: 16384

PointLifeTime

Type: float

0.f for unlimited

TrailLocation

Type: ETrailLocation

Trail Attachment

TrailShadeType

Type: ETrailShadeType

Shading effect on trail

UseCrossedSheets

Type: bool

Internal variables

IndexBuffer

Type: IndexBuffer

Modifiers: transient

IndicesPerParticle

Type: int

Modifiers: transient

PrimitivesPerParticle

Type: int

Modifiers: transient

TrailData

Type: array<ParticleTrailData>

Modifiers: transient

TrailInfo

Type: array<ParticleTrailInfo>

Modifiers: transient

VertexBuffer

Type: VertexBuffer

Modifiers: transient

VerticesPerParticle

Type: int

Modifiers: transient

Enums

ETrailLocation

PTTL_AttachedToParticle 

Attached to Particle

PTTL_FollowEmitter 

Attached to Particle, with added emitter's velocity

ETrailShadeType

PTTST_None 

Full particle color

PTTST_RandomStatic 

particle color * random opacity set once

PTTST_RandomDynamic 

particle color * random opacity, updated every tick

PTTST_Linear 

smooth linear fade out (begining = 100%, end = 0%)

PTTST_PointLife 

linear fade relative to point's life

Structs

ParticleTrailData

Object.Vector Location 

Object.Color Color 

float Size 

int DoubleDummy1 

int DoubleDummy2 

ParticleTrailInfo

int TrailIndex 

int NumPoints 

Object.Vector LastLocation 

last point location (to compute new points)

Object.Vector LastEmitterLocation 

Laurent -- Last Emitter Location, to process point interpolation

Native functions

ResetTrail

native final function ResetTrail ()