Layer a procedural SkeletonModifier3D (ShooterPoseModifier) on top of the base
clip so the character reads like a movement-shooter avatar:
- Directional lean: banks into the movement direction (right/left/back) and
blends smoothly for diagonals, driven by velocity relative to facing.
- Slide: leans the torso back and pitches the head up to look forward, instead
of the base clip's forward-torso/legs-out "spine break".
- Airborne: plays a composed Jump pose (weapon ready) rather than a flailing
fall.
- Weapon hold: the base clip already keeps the arms down (weapon at the hip);
on ADS both arms lift and swing in toward centre-front to aim. ADS is read
from the active weapon and synced (synced_is_ads) so remote players raise
their weapons too.
The controller feeds movement direction + ADS to SkinnedPlayerModel.set_locomotion()
each frame (works for local and remote via synced velocity/rotation). All
rotations are authored in skeleton space (fwd=+Z, up=+Y, right=-X) and converted
per-bone; tuning constants are at the top of ShooterPoseModifier.
Verified by rendering the poses (idle/strafe/back/slide/ads) in a real Godot
viewport. Smoke test 30/30.
Co-Authored-By: Claude Fable 5 <[email protected]>