Documentation / scene / FixedGeometryCacheTrack

Class: FixedGeometryCacheTrack

Defined in: libs/scene/src/animation/fixed_geometry_cache_track.ts:23

Geometry cache track backed by explicit per-frame vertex data.

Extends

• AnimationTrack<FixedGeometryCacheState>

Constructors

Constructor

new FixedGeometryCacheTrack(times?, frames?, embedded?): FixedGeometryCacheTrack

Defined in: libs/scene/src/animation/fixed_geometry_cache_track.ts:29

Parameters

times?

Float32Array

frames?

GeometryCacheFrame[]

embedded?

boolean

Returns

FixedGeometryCacheTrack

Overrides

AnimationTrack.constructor

Accessors

name

Get Signature

get name(): string

Defined in: libs/scene/src/animation/animationtrack.ts:45

Human-readable name of the track.

Returns

string

Set Signature

set name(val): void

Defined in: libs/scene/src/animation/animationtrack.ts:48

Parameters

val

string

Returns

void

Inherited from

AnimationTrack.name

---

embedded

Get Signature

get embedded(): boolean

Defined in: libs/scene/src/animation/animationtrack.ts:54

Whether this track is embedded (owned inline by a resource/container).

Returns

boolean

Inherited from

AnimationTrack.embedded

---

animation

Get Signature

get animation(): AnimationClip

Defined in: libs/scene/src/animation/animationtrack.ts:60

The AnimationClip that owns this track.

Returns

AnimationClip

Set Signature

set animation(ani): void

Defined in: libs/scene/src/animation/animationtrack.ts:63

Parameters

ani

AnimationClip

Returns

void

Inherited from

AnimationTrack.animation

---

target

Get Signature

get target(): string

Defined in: libs/scene/src/animation/animationtrack.ts:72

Logical target identifier for this track (optional metadata).

This does not affect application; it can be used by tooling or higher-level systems to label/group tracks.

Returns

string

Set Signature

set target(val): void

Defined in: libs/scene/src/animation/animationtrack.ts:75

Parameters

val

string

Returns

void

Inherited from

AnimationTrack.target

---

jointIndex

Get Signature

get jointIndex(): number

Defined in: libs/scene/src/animation/animationtrack.ts:81

Joint index if this track controls a joint, otherwise -1

Returns

number

Set Signature

set jointIndex(index): void

Defined in: libs/scene/src/animation/animationtrack.ts:84

Parameters

index

number

Returns

void

Inherited from

AnimationTrack.jointIndex

---

times

Get Signature

get times(): Float32Array<ArrayBufferLike>

Defined in: libs/scene/src/animation/fixed_geometry_cache_track.ts:49

Returns

Float32Array<ArrayBufferLike>

Set Signature

set times(value): void

Defined in: libs/scene/src/animation/fixed_geometry_cache_track.ts:53

Parameters

value

Float32Array

Returns

void

---

frames

Get Signature

get frames(): GeometryCacheFrame[]

Defined in: libs/scene/src/animation/fixed_geometry_cache_track.ts:57

Returns

GeometryCacheFrame[]

Set Signature

set frames(value): void

Defined in: libs/scene/src/animation/fixed_geometry_cache_track.ts:61

Parameters

value

GeometryCacheFrame[]

Returns

void

Methods

clone()

clone(): this

Defined in: libs/scene/src/animation/fixed_geometry_cache_track.ts:37

Clone this animation track

Returns

this

Overrides

AnimationTrack.clone

---

calculateState()

calculateState(_target, currentTime): GeometryCacheState

Defined in: libs/scene/src/animation/fixed_geometry_cache_track.ts:66

Compute the animation state at the specified time.

Implementations should be pure with respect to inputs: given the same target and currentTime, return the same StateType.

Parameters

_target

object

currentTime

number

Time cursor in seconds within the track's timeline.

Returns

GeometryCacheState

The computed state at currentTime.

Overrides

AnimationTrack.calculateState

---

applyState()

applyState(target, state): void

Defined in: libs/scene/src/animation/fixed_geometry_cache_track.ts:91

Apply a previously computed animation state to the target.

Parameters

target

object

The animated object to modify.

state

GeometryCacheState

The state to apply.

Returns

void

Overrides

AnimationTrack.applyState

---

mixState()

mixState(a, b, t): object

Defined in: libs/scene/src/animation/fixed_geometry_cache_track.ts:101

Blend two states into a new state using a weight.

Parameters

a

GeometryCacheState

First state.

b

GeometryCacheState

Second state.

t

number

Blend weight in [0, 1], where 0 yields a and 1 yields b.

Returns

object

The blended state.

positions

positions: Float32Array<ArrayBuffer>

normals

normals: Float32Array<ArrayBufferLike>

boundingBox

boundingBox: BoundingBox

Overrides

AnimationTrack.mixState

---

getBlendId()

getBlendId(): string

Defined in: libs/scene/src/animation/fixed_geometry_cache_track.ts:123

Get the blend identifier for this track.

Tracks with the same blend ID are considered compatible for blending on the same target channel/property.

Returns

string

An identifier used to group compatible tracks for blending.

Overrides

AnimationTrack.getBlendId

---

getDuration()

getDuration(): number

Defined in: libs/scene/src/animation/fixed_geometry_cache_track.ts:127

Get the intrinsic duration of this track in seconds.

Used by clips to determine overall clip duration and looping behavior.

Returns

number

Track duration (seconds).

Overrides

AnimationTrack.getDuration

---

reset()

reset(target): void

Defined in: libs/scene/src/animation/fixed_geometry_cache_track.ts:131

Reset the track to its initial state for the given target.

Intended to stop playback and rewind the target to the first frame or default state.

Parameters

target

object

Returns

void

Overrides

AnimationTrack.reset