Skip to main content
Water

Water · screenshot coming soon

​
What this node does

Water runs a fluid-surface simulation over a COMFYTV_VIDEO clip and refracts the image through the resulting ripples, then writes a new snapshot on ▶ Run. Ripples come from periodic rain drops and/or a directional swirl current, and the fluid’s viscosity is chosen with a physics preset. In and out are both COMFYTV_VIDEO. To feed native ComfyUI nodes, insert a Bridge — see the bridge guide.

​
When to use it

  • Put the shot “under water” or behind a rain-struck pane of glass.
  • Add living, physics-based ripples that a fixed sine wave can’t fake.
  • Create a viscous, gooey distortion with the sludge presets.

​
Parameters

​
physics

Fluid behavior preset. Options: water (light, fast ripples), jelly, sludge, super_sludge (progressively thicker, slower, more viscous). Default water.

​
rain

Spawn periodic rain-drop ripples. Default on.

​
swirl

Add a directional swirling current. Default off.
If both rain and swirl are off, the node passes the clip through untouched.

​
rain_every

Frames between rain drops, 1–24, default 4. Smaller = more frequent drops (busier surface).

​
amplitude

Ripple/refraction strength, 0.0–1.0, default 0.5. Higher = deeper distortion.

​
swirl_x / swirl_y

Swirl current direction/strength, each -0.5–0.5, defaults 0.0. Only used when swirl is on; push the values to steer the current.

​
seed

Random seed for drop placement, 0–99999, default 7. Same seed = same ripple pattern.

​
Outputs

​
Tips

  • Turn both rain and swirl off to bypass the effect without unwiring.
  • swirl_x/swirl_y only do something when swirl is enabled.
  • Thicker physics presets hold ripples longer, giving a slower, more syrupy motion.
  • Wave Warp — a simpler, deterministic sine ripple.
  • Feedback FX — recursive trails for a different flowing look.