Documentation / scene / MorphTargetGroupTrack

Class: MorphTargetGroupTrack

Defined in: libs/scene/src/animation/morphtargetgrouptrack.ts:13

Animates a model-level morph target group by name.

Extends

• AnimationTrack<number>

Constructors

Constructor

new MorphTargetGroupTrack(groupName?, interpolator?, embedded?): MorphTargetGroupTrack

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

Create a morph target group animation track.

Parameters

groupName?

string

Morph target group name

interpolator?

Interpolator

Scalar interpolator for the group weight

embedded?

boolean

Whether this track is embedded

Returns

MorphTargetGroupTrack

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

---

groupName

Get Signature

get groupName(): string

Defined in: libs/scene/src/animation/morphtargetgrouptrack.ts:31

Morph target group name controlled by this track.

Returns

string

Set Signature

set groupName(value): void

Defined in: libs/scene/src/animation/morphtargetgrouptrack.ts:34

Parameters

value

string

Returns

void

---

interpolator

Get Signature

get interpolator(): Interpolator

Defined in: libs/scene/src/animation/morphtargetgrouptrack.ts:38

Scalar interpolator for this track.

Returns

Interpolator

Set Signature

set interpolator(value): void

Defined in: libs/scene/src/animation/morphtargetgrouptrack.ts:41

Parameters

value

Interpolator

Returns

void

Methods

reset()

reset(_target): void

Defined in: libs/scene/src/animation/animationtrack.ts:98

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

The animated object to reset.

Returns

void

Inherited from

AnimationTrack.reset

---

clone()

clone(): this

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

Clone this animation track

Returns

this

Overrides

AnimationTrack.clone

---

calculateState()

calculateState(target, currentTime): number

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

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

The animated object (used to resolve current baseline if needed).

currentTime

number

Time cursor in seconds within the track's timeline.

Returns

number

The computed state at currentTime.

Overrides

AnimationTrack.calculateState

---

applyState()

applyState(node, weight): void

Defined in: libs/scene/src/animation/morphtargetgrouptrack.ts:58

Apply a previously computed animation state to the target.

Parameters

node

SceneNode

The animated object to modify.

weight

number

The state to apply.

Returns

void

Overrides

AnimationTrack.applyState

---

mixState()

mixState(a, b, t): number

Defined in: libs/scene/src/animation/morphtargetgrouptrack.ts:64

Blend two states into a new state using a weight.

Parameters

a

number

First state.

b

number

Second state.

t

number

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

Returns

number

The blended state.

Overrides

AnimationTrack.mixState

---

getBlendId()

getBlendId(): string

Defined in: libs/scene/src/animation/morphtargetgrouptrack.ts:68

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/morphtargetgrouptrack.ts:72

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