bool
EvaluateChannel
( const FMovieSceneCameraShakeSourceT..., FFrameTime InTime, FMovieSceneCameraShakeSourceTrigger...)
( const FMovieSceneEventChannel*..., FFrameTime InTime, FMovieSceneEvent& OutValue)
( const FMovieSceneStringChannel*..., FFrameTime InTime, FString& OutValue)