public void addTimeScale(float time, Vector3f scale) {
        addKeyFrameScale((int) (time / tpf), scale);
    }
Adds a key frame for the given scale at the given time
@param time the time at which the keyFrame must be inserted
@param scale the scale to use for this keyFrame
jme3-core/src/main/java/com/jme3/animation/AnimationFactory.java