Process Recorder

Want to keep a record of your drawing process, but a normal screen recording runs to tens of gigabytes over a few hours — and captures all the idle time you spent staring and sipping water?

Nephele's Process Recorder is an event-triggered timelapse: it grabs a frame only when you actually put down a stroke, compressing hours of work into a lightweight timelapse video. It runs entirely on your machine, the files are tiny, and it can generate a Creation Log card and seal the whole process into a verifiable archive.

How to use it

1. Open 「Process Recorder」 from the toolbox.
2. Pick what to record: the whole screen, a specific window, or a screen region (see below).
3. Set the trigger keys: 「Stroke (left button)」 by default; add space, number keys, etc., comma-separated for custom keys.
4. Hit start. From then on, each trigger grabs a frame — stop when you're done.

You can also enable 「Auto start」: it starts recording and prompts you when it detects you painting in your drawing app, and picks up any unfinished work automatically.

Screen-region recording

Beyond full-screen and window, you can drag to select just one area to record. This is especially handy for drawing apps — frame the canvas and the thumbnails in navigator and palette panels stay out of shot, which is a relief when you'd rather they didn't end up in the final video.

A framed region can be saved as a named preset (e.g. "Canvas (no navigator)") and reused in one tap, so you don't re-select it every time.

Creation Log

After you stop, you can generate a Creation Log card for the session — an image in the same design language as the StyleDNA share card, recording this session's data: actual painting time, stroke count, longest focus stretch, peak pace, undo count, and more, optionally with the finished piece. Every change you made counts — painting isn't a contest, it's a process.

Resuming across sessions

A single piece often takes several days. Nephele separates the "work" from the "sitting": one work can have many sittings, each sealed when you stop and resumed later, with the frame count continuing from the running total rather than restarting at zero. It survives across days, and recovers from power loss.

Process archives and evidence

Each sitting is sealed into an archive: the raw frame sequence, per-frame timestamps, and a hash chain, optionally stamped with an RFC 3161 trusted timestamp. That archive can be integrity-verified and exported as an evidence pack — if you ever need to prove "this piece really was drawn by me, stroke by stroke, at this time," it's your backing.

Missing video component?

Process Recorder needs a built-in video encoding component (FFmpeg). If security software wrongly quarantines it as suspicious, the recorder page guides you to one-tap repair: it re-fetches it from the official source. Afterward, add Nephele's install folder to your security software's allowlist so it won't happen again.