Sequence and movie related types

Core

Runtime

UMovieSceneSequenceTickManager

Global (one per-UWorld) manager object that manages ticking and updating any and all Sequencer-based evaluations for the current frame, before any other actors are ticked.

Ticking clients are registered based on their desired tick interval, and grouped together with other clients that tick with the same interval (based on Sequencer.TickIntervalGroupingResolutionMs).

Sequencer data is shared between all instances within the same group, allowing them to blend together. Clients ticking at different intervals do not support blending with each other.

ALevelSequenceActor

Actor responsible for controlling a specific level sequence in the world. Also check AReplicatedLevelSequenceActor.

IMovieScenePlaybackClient

Movie scene binding overrides interface. ALevelSequenceActor and UActorSequenceComponent implements it.

IMovieSceneBindingOwnerInterface

N/A.

UMovieSceneSequence

Abstract base class for movie scene animations (C++ version). The very base parent of it is UMovieSceneSignedObject.

UMovieSceneSequencePlayer

Abstract class that provides consistent player behavior for various animation players.

IMovieSceneSequenceTickManagerClient

Interface for objects that are to be ticked by the tick manager.

ULevelSequence

Movie scene animation for Actors.

ULevelSequencePlayer

ULevelSequencePlayer is used to actually “play” an level sequence asset at runtime. This class keeps track of playback state and provides functions for manipulating an level sequence while its playing.

ISequencer

Interface for sequencers. Note: As for 5.6 this is only used in FSequencer.

IMovieScenePlayer

Interface for movie scene players. Provides information for playback of a movie scene

UMovieScene

Implements a movie scene asset.

UMovieSceneDecorationContainerObject

N/A.

UMovieSceneClock

N/A.

FSharedPlaybackState

A structure that stores playback state for an entire sequence hierarchy.

FSequenceInstance

A sequence instance represents a specific instance of a currently playing sequence, either as a top-level sequence in an IMovieScenePlayer, or as a sub sequence. Any given sequence asset may have any number of instances created for it at any given time depending on how many times it is referenced by playing sequences

Bindings

UMovieSceneCustomBinding

A custom binding. Allows users to define their own binding resolution types, including dynamic “Replaceable” bindings with previews in editor, as well as Spawnable types. It has many child classes.

UMovieSceneReplaceableBindingBase

The base class for custom replaceable bindings. Check source for detailed description.

UMovieSceneBindingOverrides

A one-to-many definition of movie scene object binding IDs to overridden objects that should be bound to that binding.

FMovieSceneBindingOverrideData

Miscs

ACineCameraActor

A CineCameraActor is a CameraActor specialized to work like a cinematic camera. In the editor it is created with FSequencerUtilities::CreateCamera. You can change how the default “possessing” of the new camera is done with OnCameraAddedToSequencer delegate on ISequencer, which is handled in MovieSceneToolHelpers::NewCameraAdded → MovieSceneToolHelpers::LockCameraActorToViewport. This eventually leads to UCineCameraComponent::GetCameraView being called.

UCineCameraComponent

A specialized version of a camera component, geared toward cinematic usage.

FEntityBuilder

Derived from TEntityBuilder.

TEntityBuilder

See source code for detailed description.

FBuiltInComponentTypes

Pre-defined built in component types.

Editor Only

ULevelSequenceEditorSettings

See TrackSettings if you want to create automatically tracks for specific added actor types.

ISequencerModule

Used by FSequencerModule.

ILevelSequenceEditorModule

Used by FLevelSequenceEditorModule.

FLevelSequenceEditorToolkit

Implements an Editor toolkit for level sequences. Child of ILevelSequenceEditorToolkit.

ULevelSequenceFactoryNew

Implements a factory for ULevelSequence objects.

FSequencer

Sequencer is the editing tool for MovieScene assets. Is responsible for the creation of SSequencer (see SequencerWidget). It is marked as final so it cannot be subclassed. It is created in FSequencerModule::CreateSequencer, there is 2 delegates (OnPreSequencerInit and OnSequencerCreated) that allows you to inject stuff, check the Register functions for public access . Note: InitSequencer calls BindCommands.

FSequencerUtilities

N/A.

MovieSceneToolHelpers

N/A.

ISequencerEditorObjectBinding

Only child is FLevelSequenceEditorActorBinding.

FObjectBindingTagCache

Owned by an FSequencer instance, this class tracks tags for object bindings, and maintains a reverse lookup map from binding to tag(s) along with other information for the tags such as color tints. See Sequence tags for more info.

FSubTrackEditor

Tools for subsequences. FSubTrackEditor::BuildAddTrackMenu is what builds the menu.

Tracks

UMovieScene3DTransformTrack

Handles manipulation of component transforms in a movie scene.

UMovieSceneCommonAnimationTrack

N/A.

UMovieSceneSkeletalAnimationTrack

Handles animation of skeletal mesh actors.

UMovieSceneSubTrack

A track that holds sub-sequences within a larger sequence.

UMovieSceneCinematicShotTrack

A track that holds consecutive sub sequences.

UTemplateSequenceTrack

N/A.

UMovieSceneEventTrack

Implements a movie scene track that triggers discrete events during playback.

Sections

UMovieScene3DTransformSection

A 3D transform section. See Getting Sequencer Tracks and Sections for an example on how to get the transform values.

UMovieSceneSkeletalAnimationSection

Movie scene section that control skeletal animation.

UMovieSceneSubSection

Implements a section in sub-sequence tracks. They are added with FSubTrackEditor::HandleAddSubSequenceComboButtonMenuEntryExecute → UMovieSceneSubTrack::AddSequenceOnRow.

UMovieSceneCinematicShotSection

Implements a cinematic shot section.

UTemplateSequenceSection

Defines the section for a template sequence track.

UMovieSceneEventSection

Implements a section in movie scene event tracks. Seems weird that this exists since UMovieSceneEventSectionBase is here to but they don’t seem related.

UMovieSceneEventSectionBase

Base class for all event sections. Manages dirtying the section and track on recompilation of the director blueprint.

UMovieSceneEventRepeaterSection

Event section that will trigger its event exactly once, every time it is evaluated.

UMovieSceneEventTriggerSection

Event section that triggers specific timed events.

Miscs

IMovieSceneEntityProvider

Interface to be added to UMovieSceneSection types when they contain entity data.