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Strobe

Strobe · screenshot coming soon

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What this node does

Strobe punches a repeating pattern into a COMFYTV_VIDEO: every Nth frame is swapped for solid black, solid white, or a held copy of a frame, giving a flicker/strobe rhythm. It writes a new snapshot on ▶ Run. In and out are both COMFYTV_VIDEO. To feed native ComfyUI nodes, insert a Bridge — see the bridge guide.

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When to use it

  • Add a rhythmic flicker synced to a beat or an edit accent.
  • Create a stuttering hold effect (freeze every few frames).
  • Build a hard black/white strobe for a club or horror moment.

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Parameters

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interval

Frames between strobe hits, 1–120, default 3. Smaller = faster, more frequent strobing; 1 affects every frame.

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strobe_mode

What the struck frames become. Options: black (solid black), hold (freeze/hold a frame), white (solid white). Default black.

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invert

Flips which frames are struck versus passed through (inverts the on/off phase of the pattern). Default off.

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Outputs

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Tips

  • Match interval to your frame rate and beat to lock the flicker to music.
  • Use invert to swap which frames flash without changing interval.
  • hold gives a stutter-freeze feel, while black/white give a hard flash.
  • Glitch FX — random digital corruption instead of a regular pulse.
  • Feedback FX — trailing/echo motion for a different temporal effect.