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OBS Shader - Liquid Fill

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StreamUP Liquid Fill

A liquid wash that floods a source from one edge to the other in OBS. A solid body fills in behind ragged drips that run on ahead, so it reads like liquid actually pouring, not a flat wipe.

The default look is the James Bond gun-barrel blood fall. Make it any colour you want: paint, slime, water, whatever. Drive it by hand with Fall Progress, keyframe it with the Move plugin, or switch on Auto Play to run it for you. It pours in any direction, 0 to 360 degrees.

Features

  • Fall Progress master. 0 is a clean source, 1 is fully flooded. Drag it, keyframe it with Move, or hand it to Auto Play.
  • Pours any direction. 0 to 360 degrees. 0 down for the classic gun-barrel, 90 right, 180 up, 270 left, anything between is a diagonal.
  • Ragged drips. Up to 60 drips run ahead of the body. Tune reach, thickness, raggedness, position jitter, and how the joins merge.
  • Real liquid feel. Viscosity, fill unevenness, and a lava-lamp sway that keeps the drips moving even while Fall Progress is held still.
  • Two-tone depth. Wash colour at the leading edge, a deep colour behind, with depth darkness and falloff for older liquid further back.
  • Any liquid. Deep red blood out of the box. Drop the colour's alpha for a see-through tint instead of a full flood.
  • Wet shine. Glossy sheen on the leading drips, a thin surface rim line, and flow streaks running through the wash.
  • Auto Play and loop. Set the fall duration, loop with a hold at full, add acceleration for a gravity drop instead of constant speed.
  • Finish on flat colour. Settle the whole frame to one even colour, or stop the moment the source is covered and keep the wet streaky look.
  • Repeatable randomness. Seed for a fixed pattern you can scrub, or randomise each play for a fresh drip layout every run.

Setup

  1. Install obs-shaderfilter if you haven't already.
  2. Download streamup-liquid-fill.shader from your member dashboard.
  3. Right-click any scene or source in OBS, Filters, +, User-defined shader.
  4. Point Shader text file at streamup-liquid-fill.shader. No need to expand the canvas.
  5. Drag Fall Progress to pour by hand, keyframe it with Move, or switch on Auto Play.
  6. Set your wash colour and dial the drips. Done.

Patch notes

v0.0.1, 2026-06-29

  • First release. Fall Progress and Auto Play, any direction 0 to 360, ragged drips with viscosity and lava-lamp motion, two-tone depth, wet sheen and surface rim, finish on flat colour, repeatable seed.

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