BlendMath.PingPong + SnapshotVisibleObjects(nowMs); no-arg overload keeps headless callers deterministic (parity held, 76/76 + sweep 284/13). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>