Index of the root/hips joint whose travel drives motion.
Optionalmode'xz' (default) extracts horizontal travel and leaves vertical in the pose
(so jump arcs still animate); 'xyz' extracts all three axes.
OptionalmaxPer-frame travel above this magnitude is treated as a loop wrap and ignored (reported as zero). Default 0.5 world units — raise for large/fast models.
Root-motion extraction config (see Animator.rootMotionDelta).