j.foucher
e57be0a1d9
Decouple viseme timing from 32ms audio chunks by introducing an independent FVisemeTimelineEntry timeline evaluated at render framerate. Playback-time envelope tracking from consumed queue frames replaces arrival-time-only updates, with fast 40ms decay when queue is empty. - Viseme subsampling caps at ~10/sec (100ms min) to prevent saccades - Full-duration quintic smootherstep crossfade (C2 continuous, no hold phase) - Dead zone lowered to 0.15 for cleaner silence transitions - TotalActiveFramesSeen cumulative counter for accurate timeline scaling - Absolute cursor preservation on timeline rebuild - Moderate Lerp smoothing (attack 0.55, release 0.40) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>