FMovieSceneTimeTransform Struct Reference

#include <MovieSceneTimeTransform.h>

Public Member Functions
	FMovieSceneTimeTransform ()
	FMovieSceneTimeTransform (FFrameTime InOffset, float InTimeScale=1.f)
bool	IsIdentity () const
FMovieSceneTimeTransform	Inverse () const

Public Attributes
float	TimeScale
FFrameTime	Offset

Friends
bool	operator== (const FMovieSceneTimeTransform &A, const FMovieSceneTimeTransform &B)
bool	operator!= (const FMovieSceneTimeTransform &A, const FMovieSceneTimeTransform &B)

Detailed Description

Movie scene sequence transform class that transforms from one time-space to another.

Note

The transform can be thought of as the top row of a 2x2 matrix, where the bottom row is the identity: | TimeScale Offset | | 0 1 |

As such, traditional matrix mathematics can be applied to transform between different sequence's time-spaces.

Transforms apply time scale first, and then offset.

Constructor & Destructor Documentation

FMovieSceneTimeTransform() [1/2]

FMovieSceneTimeTransform::FMovieSceneTimeTransform ( )

inline

Default construction to the identity transform

FMovieSceneTimeTransform() [2/2]

FMovieSceneTimeTransform::FMovieSceneTimeTransform ( FFrameTime  InOffset, float  InTimeScale = 1.f  )

inlineexplicit

Construction from an offset, and a scale

Parameters

InOffset	The offset to translate by
InTimeScale	The timescale. For instance, if a sequence is playing twice as fast, pass 2.f

Member Function Documentation

Inverse()

FMovieSceneTimeTransform FMovieSceneTimeTransform::Inverse ( ) const

inline

Retrieve the inverse of this transform

IsIdentity()

bool FMovieSceneTimeTransform::IsIdentity ( ) const

inline

Returns whether this transform is an identity transform.

Friends And Related Symbol Documentation

operator!=

bool operator!= ( const FMovieSceneTimeTransform &  A, const FMovieSceneTimeTransform &  B  )

friend

operator==

bool operator== ( const FMovieSceneTimeTransform &  A, const FMovieSceneTimeTransform &  B  )

friend

Member Data Documentation

Offset

FFrameTime FMovieSceneTimeTransform::Offset

Scalar frame offset applied after the scale

TimeScale

float FMovieSceneTimeTransform::TimeScale

The sequence's time scale (or play rate)

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The documentation for this struct was generated from the following file:

• Engine/Source/Runtime/MovieScene/Public/Evaluation/MovieSceneTimeTransform.h