LEAN IN MOTION — five optional sections: Root (banking + weight shift), Spine (twist + chest anchoring), Pelvis (world-space lag, anti foot-slide), Tail (travelling-wave chain), Stabilized Bones (gaze / item). Trajectory-driven, strafe-aware, CurrentLateral output.

GROUND IK — terrain IK, any number of legs: per-foot traces, two-bone IK that keeps the animated knee bend (no pole vector), world-space stance latching, predicted landing for swing feet, two-sample foot pitch, ledge hang, ankle and leg-stretch limits, pelvis adaptation with tilt.

TURN IN PLACE — world-pinned feet, error-driven stepping: spiral wind-up with spine counter-rotation, knee-budget gating, weight transfer, shuffle mode for long turns, arm swing, curve-driven step height.

All three: C++ RigVM units, sections optional, tooltips on every pin, airborne fade from velocity. Debug drawing on Ground IK and Turn In Place. Demo map included.

Dependencies: the engine's built-in Control Rig plugin. No third-party content.

Code Modules: LeanInMotion (Runtime)

Number of C++ Classes: 3 rig units (+14 structs)

Number of Blueprints: 4 (demo) + 1 Control Rig asset

Supported Development Platforms: Windows, Mac, Linux

Supported Target Build Platforms: Windows, Mac, Linux

Network Replicated: works with standard replicated movement

Documentation: README (EN + RU) and CHANGELOG inside the plugin — pin reference and setup recipes for all three nodes. Wire actor rotation and velocity in the Forwards Solve; recommended order Lean in Motion → Turn In Place → Ground IK.

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