#include <MovieSceneComposableCameraShotTrack.h>

Inherits: UMovieSceneNameableTrack

Sequencer track that drives Composable Camera Shots — Phase E of Shot-Based Keyframing.

Each section on the track represents one Shot activation window in the timeline. The active Shot's data ([FComposableCameraShot](../structs/FComposableCameraShot.md#fcomposablecamerashot)) is pushed every frame into the bound [AComposableCameraLevelSequenceActor](../actors/AComposableCameraLevelSequenceActor.md#acomposablecameralevelsequenceactor)'s internal [UComposableCameraCompositionFramingNode::Shot](../nodes/UComposableCameraCompositionFramingNode.md#shot-2) UPROPERTY by the UMovieSceneComposableCameraShotTrackInstance — so the runtime CCS pipeline runs unchanged (TickCamera evaluates the framing node, the solver builds a pose, the LS Component projects it to the CineCamera).

Track binding model

Bound under an [AComposableCameraLevelSequenceActor](../actors/AComposableCameraLevelSequenceActor.md#acomposablecameralevelsequenceactor) (or subclass — notably the Phase E [AComposableCameraLevelSequenceShotActor](../actors/AComposableCameraLevelSequenceShotActor.md#acomposablecameralevelsequenceshotactor)) binding row, NOT root-level. The track has no TargetActorBinding field — its parent in the outliner is the binding it drives. The track editor (Phase E.4) surfaces the menu entry only when the binding's class matches.

Multi-row + overlap semantics

Rows are enabled. When two sections overlap on different rows, the overlap window is treated as an inter-Shot transition zone. The lower-row section is the outgoing Shot, the higher-row section is the incoming Shot, and the incoming section's EnterTransition selects the transition asset used to blend the two solved poses. If EnterTransition is null, the overlap behaves as a hard cut.

Transition timing

The section overlap itself defines blend duration. The transition asset contributes its blend curve and pose blend behavior; its own TransitionTime is ignored on this Sequencer Shot path.

Section exit semantics

CompositionFramingNode::Shot retains the last-written value when no section is active (gap between sections / past the final section). This is intentional — the camera holds its last framing rather than snapping back to a default. Designers explicitly add a new section to change the framing.

Modeled on [UMovieSceneComposableCameraPatchTrack](UMovieSceneComposableCameraPatchTrack.md#umoviescenecomposablecamerapatchtrack) for layout consistency. Shot-track-specific divergences:

• Bound (under a binding row), not root.

• Inter-Shot blends are authored through section overlap plus the incoming section's EnterTransition.

• No TargetActorBinding (the bound actor IS the parent binding).

Public Methods¶

UMovieSceneComposableCameraShotTrack¶

UMovieSceneComposableCameraShotTrack(const FObjectInitializer & ObjectInitializer)

AddSection¶

virtual

virtual void AddSection(UMovieSceneSection & Section)

SupportsType¶

virtual const

virtual bool SupportsType(TSubclassOf< UMovieSceneSection > SectionClass) const

CreateNewSection¶

virtual

virtual UMovieSceneSection * CreateNewSection()

SupportsMultipleRows¶

virtual const inline

virtual inline bool SupportsMultipleRows() const

SupportsEasing¶

virtual const

virtual EMovieSceneTrackEasingSupportFlags SupportsEasing(FMovieSceneSupportsEasingParams & Params) const

GetAllSections¶

virtual const

virtual const TArray< UMovieSceneSection * > & GetAllSections() const

HasSection¶

virtual const

virtual bool HasSection(const UMovieSceneSection & Section) const

IsEmpty¶

virtual const

virtual bool IsEmpty() const

RemoveSection¶

virtual

virtual void RemoveSection(UMovieSceneSection & Section)

RemoveSectionAt¶

virtual

virtual void RemoveSectionAt(int32 SectionIndex)

RemoveAllAnimationData¶

virtual

virtual void RemoveAllAnimationData()

Private Attributes¶

Sections¶

TArray< TObjectPtr< UMovieSceneSection > > Sections