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  3. FMovieSceneConstraintChannelHelper

FMovieSceneConstraintChannelHelper

API > API/Editor > API/Editor/MovieSceneTools > API/Editor/MovieSceneTools/Constraints

References

   
Module MovieSceneTools
Header /Engine/Source/Editor/MovieSceneTools/Public/Constraints/MovieSceneConstraintChannelHelper.h
Include #include "Constraints/MovieSceneConstraintChannelHelper.h"

Syntax

struct FMovieSceneConstraintChannelHelper

Functions

  Type Name Description
Public function Static bool

AddConstraintToSequencer ( const TSharedPtr< ISequencer >& InSequencer,
UTickableTransformConstraint* InConstraint
)

  
Public function Static void

ChangeKeyInterpolation ( const TArrayView< ChannelType* >& InChannels,
const FFrameNumber& InTime,
EMovieSceneKeyInterpolation KeyInterpolation
)

 Change key interpolation at the specified time
Public function Static void

Compensate ( const TSharedPtr< ISequencer >& InSequencer,
const UTickableTransformConstraint* InConstraint,
const TOptional< FFrameNumber >& InOptTime
)

 Compensate transform on handles when a constraint switches state.
Public function Static void

CompensateIfNeeded ( const TSharedPtr< ISequencer >& InSequencer,
IMovieSceneConstrainedSection* Section,
const TOptional< FFrameNumber >& OptionalTime,
const int32 InChildHash
)

  
Public function Static void

DeleteTransformKeys ( const TArrayView< ChannelType* >& InChannels,
const FFrameNumber& InTime
)

 Delete transform keys at that time
Public function Static void

DeleteTransformTimes ( const TArrayView< ChannelType* >& InChannels,
const FFrameNumber& StartTime,
const FFrameNumber& EndTime,
EMovieSceneTransformChannel Channels
)

  
Public function Static FConstraintSections

GetConstraintSectionAndChannel ( const UTickableTransformConstraint* InConstraint,
const TSharedPtr< ISequencer >& InSequencer
)

 Get the section and the channel for the given constraint, will be nullptr's if it doesn't exist in Sequencer
Public function Static void

GetFramesAfter ( const FMovieSceneConstraintChannel& InActiveChannel,
const FFrameNumber& InTime,
const TArrayView< ChannelType* >& InChannels,
TArray< FFrameNumber >& OutFrames
)

  
Public function Static void

GetFramesToCompensate ( const FMovieSceneConstraintChannel& InActiveChannel,
const bool InActiveValueToBeSet,
const FFrameNumber& InTime,
const TArrayView< ChannelType* >& InChannels,
TArray< FFrameNumber >& OutFramesAfter
)

  
Public function Static void

GetFramesWithinActiveState ( const FMovieSceneConstraintChannel& InActiveChannel,
const TArrayView< ChannelType* >& InChannels,
TArray< FFrameNumber >& OutFrames
)

  
Public function Static void

GetTransformFramesForConstraintHandles ( const UTickableTransformConstraint* InConstraint,
const TSharedPtr< ISequencer >& InSequencer,
const FFrameNumber& StartFrame,
const FFrameNumber& EndFrame,
TArray< FFrameNumber >& OutFramesToBake
)

 For the given constraint get all of the transform keys for it's child and parent handles
Public function Static TArray< FFrameNumber >

GetTransformTimes ( const TArrayView< ChannelType* >& InChannels,
const FFrameNumber& StartTime,
const FFrameNumber& EndTime
)

  
Public function Static void

HandleConstraintKeyDeleted ( UTickableTransformConstraint* InConstraint,
const FMovieSceneConstraintChannel* InConstraintChannel,
const TSharedPtr< ISequencer >& InSequencer,
UMovieSceneSection* InSection,
const FFrameNumber& InTime
)

  
Public function Static void

HandleConstraintKeyMoved ( const UTickableTransformConstraint* InConstraint,
const FMovieSceneConstraintChannel* InConstraintChannel,
UMovieSceneSection* InSection,
const FFrameNumber& InCurrentFrame,
const FFrameNumber& InNextFrame
)

  
Public function Static void

HandleConstraintPropertyChanged ( UTickableTransformConstraint* InConstraint,
const FMovieSceneConstraintChannel& InActiveChannel,
const FPropertyChangedEvent& InPropertyChangedEvent,
const TSharedPtr< ISequencer >& InSequencer,
UMovieSceneSection* InSection
)

  
Public function Static void

HandleConstraintRemoved ( UTickableConstraint* InConstraint,
const FMovieSceneConstraintChannel* InChannel,
const TSharedPtr< ISequencer >& InSequencer,
UMovieSceneSection* InSection
)

  
Public function Static void

MoveTransformKeys ( const TArrayView< ChannelType* >& InChannels,
const FFrameNumber& InCurrentTime,
const FFrameNumber& InNextTime
)

  
Public function Static void

SetTransformTimes ( const TArrayView< ChannelType* >& InChannels,
const TArray< FFrameNumber >& Frames,
const TArray< FTransform >& Transforms
)

 This will only set the value son channels with keys at the specified time, reusing tangent time etc.
Public function Static bool

SmartConstraintKey ( const TSharedPtr< ISequencer >& InSequencer,
UTickableTransformConstraint* InConstraint,
const TOptional< bool >& InOptActive,
const TOptional< FFrameNumber >& InOptFrameTime
)

 Adds an active key if needed and does the compensation when switching.

Constants

Name Description
bDoNotCompensate  

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