- Fix two-step body animation: head overflow now checked against
TargetBodyWorldYaw (body TARGET) instead of current body position,
preventing head overcompensation during body interpolation.
- Fix ARKit eye curve normalization: curves now normalized by fixed
physical range (30°/20°) instead of configurable MaxEye thresholds.
MaxEye controls cascade threshold only, not visual deflection.
- Fix diagonal head tilt: full FQuat pipeline (no FRotator round-trip)
+ swing-twist decomposition using bone's actual tilt axis (accounts
for MetaHuman ~11.5° reference pose rotation on head bone).
- Clean up diagnostic logging: reduced to Log level, removed verbose
per-frame quaternion dumps from investigation phase.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
j.foucher
250ae5e04d