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Export button in the top bar replays the whole timeline from t=0 at the
current speed while a MediaRecorder captures canvas.captureStream() plus the
AudioEngine output, then downloads the file. MP4 (H.264/AAC) where the
browser can encode it, WebM otherwise.
- Idle stretches longer than 10s of sim time are replaced by a 2s caption
card ('… 3m 20s later …') drawn into the canvas, then the clock skips to
the next event (new skipTo() on the simulation).
- Sounds are recorded even when the speakers are muted: mute now sits on a
separate output stage and the recorder taps the mix before it.
- Review-mode audio gating is bypassed during an export.
- Click the button again to cancel (nothing is saved).
https://claude.ai/code/session_01AGs5TZo6yxv7NHARHawyJf
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Adds an Export button to the top bar that records the whole timeline as a video file, sounds included.
How it works: the simulation is rewound to t=0 and replayed at the current speed while a
MediaRecordercapturescanvas.captureStream()plus the AudioEngine's output; the result is downloaded when playback reaches the last event. MP4 (H.264/AAC) where the browser can encode it (Safari, recent Chrome), WebM/VP9+Opus otherwise. Click again to cancel.… 3m 20s later …) drawn into the canvas itself, so it ends up in the recording, then the clock skips to the next event via a newskipTo()that only moves time across an event-free stretch.https://claude.ai/code/session_01AGs5TZo6yxv7NHARHawyJf