Returns the timing function that SceneKit uses for all animations within this transaction group.
- iOS 8.0+
- macOS 10.8+
- tvOS 9.0+
The media timing function for the transaction’s animations.
Media timing functions, also known as animation curves, define the relationship between the elapsed time of an animation and its effect on a property. For example, the
k function creates an effect that begins slowly, speeds up, and then finishes slowly.