Exporting

How OpenScene renders an MP4 through your own FFmpeg, and what it refuses to start.

Export produces an H.264/AAC MP4 by driving the FFmpeg binary on your machine. OpenScene does not bundle its own, does not upload your timeline, and does not render in the cloud.

Before you export

Make sure ffmpeg is discoverable on PATH through an absolute directory, or set VIDEO_TOOL_FFMPEG_PATH to the binary
Review the timeline in the Program Monitor — it is a preview, not the final render
Start the export from the editor, or ask the agent to start one

What the export is authoritative for

The Program Monitor is a best-effort review surface built for speed of iteration. Where the monitor and the exported file differ, the exported file is correct. Frame-perfect multitrack mastering guarantees are explicitly not claimed by this build.

Agent-started exports

exportProjectVideo lets the agent start a local export, and because it writes a file it pauses for your approval first. The render still runs entirely on your machine through the same FFmpeg.

Formats

H.264/AAC MP4 is the only export target today. Other container and codec choices are not yet available.