update
This method will be run on each node at most once every repetition of the animation loop. It will be executed on a node only when all the node's parent has already been updated. Therefore it can be used to calculate node's value.
This method will be run on each node at most once every repetition of the animation loop. It will be executed on a node only when all the node's parent has already been updated. Therefore it can be used to calculate node's value.