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  3. FMovieSceneSequenceTransform

FMovieSceneSequenceTransform

Movie scene sequence transform class that transforms from one time-space to another, represented as a linear transformation plus zero or more complex, non-linear transformations.

API > API/Runtime > API/Runtime/MovieScene > API/Runtime/MovieScene/Evaluation

References

   
Module MovieScene
Header /Engine/Source/Runtime/MovieScene/Public/Evaluation/MovieSceneSequenceTransform.h
Include #include "Evaluation/MovieSceneSequenceTransform.h"

Syntax

USTRUCT ()  
struct FMovieSceneSequenceTransform

Remarks

Movie scene sequence transform class that transforms from one time-space to another, represented as a linear transformation plus zero or more complex, non-linear transformations.

Variables

  Type Name Description
Public variable UProperty FMovieSceneTimeTransform LinearTransform The initial linear transformation represented as a 2D matrix. Always applied first.
Public variable UProperty TArray< FMovieSceneNestedSequenceTransform > NestedTransforms Additional transformations that should be applied after LinearTransform.

Constructors

  Type Name Description
Public function   Default construction to the identity transform
Public function   Construction from a linear time transform.
Public function   Construction from a single nested sequence transform structure
Public function  

FMovieSceneSequenceTransform ( FFrameTime InOffset,
float InTimeScale
)

 Construction from an offset, and a scale

Functions

  Type Name Description
Public function void

Add ( FFrameTime InOffset,
FMovieSceneTimeWarpVariant&& InTimeWarp
)

 Add the specified warping transform to the end of this transform stack with an offset (ie, applying it last)
Public function void

Add ( FMovieSceneTimeTransform InTransform
)

 Add the specified linear transform to the end of this transform stack (ie, applying it last)
Public function void

AddLoop ( FFrameNumber Start,
FFrameNumber End
)

 Add an entry to this transform denoting it should loop between the specified start and end point
Public function void Append another transform to this one, resulting in a transform that effectively goes from this -> Tail
Public function Const FMovieSceneTimeTransform Convert this transform to its linear representation.
Public function Const TRange< FFrameTime >

ComputeTraversedHull ( const TRange< FFrameNumber >& Range
)

 Given a range in untransformed space, compute the hull of times that this range encompass when transformed.
Public function Const TRange< FFrameTime >

ComputeTraversedHull ( const TRange< FFrameTime >& Range
)

 Given a range in untransformed space, compute the hull of times that this range encompass when transformed.
Public function Const bool

ExtractBoundariesWithinRange ( FFrameTime UntransformedStart,
FFrameTime UntransformedEnd,
const TFunctionRef< bool(FFrameTime)>& Visitor
)

 Extract all the boundaries for this transform within the specified untransformed start and end time, invoking Visitor for every boundary that is present within the range.
Public function Const TOptional< UE::MovieScene::ETimeWarpChannelDomain > Retrieve the first active timewarp domain that is present in this transform, if any is present at all
Public function Const float  
Public function Const FMovieSceneInverseSequenceTransform

Inverse ()

 Compute the inverse of this transform, that is: the transform that goes from transformed to untransformed space.
Public function Const FMovieSceneSequenceTransform  
Public function Const FMovieSceneTimeTransform  
Public function Const FMovieSceneSequenceTransform

InverseFromLoop ( const TArrayView< const uint32 >& LoopCounts
)

  
Public function Const FMovieSceneSequenceTransform

InverseFromLoop ( const FMovieSceneWarpCounter& LoopCounter
)

  
Public function Const FMovieSceneSequenceTransform

InverseFromLoop ( const TArrayView< const FFrameTime >& Breadcrumbs
)

  
Public function Const FMovieSceneTimeTransform

InverseFromWarp ( const TArrayView< const uint32 >& WarpCounts
)

  
Public function Const FMovieSceneTimeTransform

InverseFromWarp ( const FMovieSceneWarpCounter& WarpCounter
)

  
Public function Const FMovieSceneTimeTransform  
Public function Const FMovieSceneSequenceTransform  
Public function Const bool Returns whether this sequence transform is an identity transform (i.e. it doesn't change anything).
Public function Const bool Returns whether this sequence transform is purely linear (i.e. doesn't involve time warping).
Public function Const bool  
Public function Const bool Returns whether this sequence transform includes any time warping.
Public function Const TRange< FFrameTime >

TransformRangeConstrained ( const TRange< FFrameTime >& Range
)

  
Public function Const TRange< FFrameNumber >

TransformRangeConstrained ( const TRange< FFrameNumber >& Range
)

  
Public function Const TRange< FFrameTime >

TransformRangePure ( const TRange< FFrameTime >& Range
)

  
Public function Const TRange< FFrameNumber >

TransformRangePure ( const TRange< FFrameNumber >& Range
)

  
Public function Const TRange< FFrameTime >

TransformRangeUnwarped ( const TRange< FFrameTime >& Range
)

  
Public function Const TRange< FFrameNumber >

TransformRangeUnwarped ( const TRange< FFrameNumber >& Range
)

  
Public function Const FFrameTime

TransformTime ( FFrameTime InTime,
const UE::MovieScene::FTransformTimeParams& Params
)

 Transform the specified time into the inner-most (transformed) space
Public function Const FFrameTime

TransformTime ( FFrameTime Time
)

 Transform the specified time into the inner-most (transformed) space
Public function Const void

TransformTime ( FFrameTime InTime,
FFrameTime& OutTime,
FMovieSceneWarpCounter& OutWarpCounter
)

  

Operators

  Type Name Description
Public function Const FMovieSceneSequenceTransform Multiply this tranmsform with another transform, resulting in a single transform that gets from RHS parent to LHS space

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