- humanoid.rig.json: removed locomotion-block (apply_locomotion no-ops
now). head: removed look_at_speed (instant snap). body: unchanged
(look_at_speed=180 lazy).
- init.lua: removed set_procedural("facing", ...) — root stays at
rest.rot=0. walk.anim + idle_lower.anim no longer loaded/played
(files retained on disk for revert). New set_procedural("walk_cycle",
...) drives legs per-frame: walk_phase advances at 1.25Hz, sin-cycle
on leg.scl, walk_dir applied to leg.rot. Idle: legs scl=0.
- Lazy body + instant head + head-leading: head responds immediately
to mouse, body lags via look_at_speed=180.
This is an experiment. If procedural feels worse, revert by re-enabling
walk.anim + idle_lower.anim + locomotion-block.
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