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Engine · v4.0.0

Fluid Ink Feedback

Ink carried by a simulated fluid: kicks drop curling blooms, snares spin eddies and the hi-hats tear it into threads.

Fluid Ink Feedback engine preview

6 modes

Launch modes

Ink Bloom mode

Ink Bloom

Each kick drops a curling bloom of ink into dark water, and the flow carries it on.

Dye Injection mode

Dye Injection

Many injectors, each on its own band and colour; the kick fires them in turn.

Curl Swirl mode

Curl Swirl

A vortex turns round the centre: kicks feed it and snares spin off eddies.

Filament Detail mode

Filament Detail

Thin fast jets, and the hi-hats tear the ink into fine threads.

Dissipation Veil mode

Dissipation Veil

Veils of ink rise from below and fade almost as fast as they arrive.

Marble Fold mode

Marble Fold

Paint drops on a bath, folded into marbled bands by a comb that turns each bar.

49 controls

Controls

ControlGroupTypeDefaultAnimationAudio
Primary colorPrimary color used by the engine paletteStylecolor#60a5faYesNo
Secondary colorSecondary color used by the engine paletteStylecolor#fb7185YesNo
BackgroundBackground used by the engine paletteStylecolor#05070fYesNo
OpacityVisualizer opacityTransformrange1YesNo
Frame marginBreathing room kept clear at the frame edges. Audio-driven geometry is soft-limited to fit inside it; geometry scale deliberately is notTransformrange0.035YesNo
SensitivityBounded overall audio responseAudiorange1YesNo
Primary audio sourcePrimary audio sourceAudioselectbassNoNo
Frequency focusWhich part of the spectrum drives this visual; while no explicit audio source is set, the motion envelope follows this selectionAudioselectfullNoNo
Burst intensityGlow and trail swell on sharp hits; 0 keeps bursts offAudiorange0YesNo
Ambient bedProminence of the standing background layer behind the beat-born elementsEffectsrange1YesNo
Wake lengthHow far motion trails stretch behind beat-born travelers; 0 removes the wakeEffectsrange1YesNo
Audio contributionMaximum contribution from the primary audio routeAudiorange0.55YesNo
Audio dynamicsHow much of the band's movement reaches the visual. 1 = full dynamics; 0 holds it at a steady level for a calmer, more constant lookAudiorange1YesNo
Audio attackEnvelope attack in millisecondsAudiorange45YesNo
Audio releaseEnvelope release in millisecondsAudiorange240YesNo
Geometry scaleGeometry scaleGeometryrange1YesYes
Motion directionRotate the animated visual pass to face this direction; the general background stays fixedMotionselectnoneNoNo
SpeedTime-based motion; default major cycle is 6–12 secondsMotionrange0.1YesYes
Color modeDuo palette, primary→secondary gradient, or full rainbow sweepStyleselectduoNoNo
GlowGlowEffectsrange0.55YesYes
Global glowShared emissive strength across the frameEffectsrange0.35YesYes
Pulse intensityBeat pulse scale for spawn, size, and shakeEffectsrange1YesYes
Beat responseHow hard every engine hits on each detected beatAudiorange1.2YesYes
Beat smoothingHow long each beat hit rings out before it settlesAudiorange0.35YesYes
Beat attackSeconds for a hit to swell to full. 0 snaps instantlyAudiorange0YesYes
Beat releaseSeconds for a hit to fade, overriding Beat smoothing. 0 follows itAudiorange0YesYes
Beat shakeFrame kick strength on each beatEffectsrange0.6YesYes
Motion echoMotion echoEffectsrange0YesYes
BlurBlurEffectsrange0YesYes
Chromatic aberrationChromatic aberrationEffectsrange0YesYes
Beat sync allRoute beat energy into spawn, shake, pulse, speed, and scaleAudiobooleantrueNoNo
Symmetry and tilingReshape the whole picture: mirror it, fold it into a kaleidoscope, or tile it (the plane groups p1, p2, p4m and p6m)Shape and symmetryselectnoneNoNo
Kaleidoscope foldsHow many mirrored copies go round the kaleidoscopeShape and symmetryrange6YesNo
Symmetry angleTurns the mirror line, or the kaleidoscope, in degreesShape and symmetryrange0YesYes
Kaleidoscope spinHow fast the kaleidoscope turns, in turns per bar of the song (0.25 is once a phrase)Shape and symmetryrange0YesYes
Tile sizeEach tile's size as a share of the frameShape and symmetryrange0.5YesNo
Tile gapThe gap between tiles, as a share of a tile; it shows the background colourShape and symmetryrange0YesNo
WarpBend the whole picture: a twist, a bulge, waves or ripples that move once a bar, a polar unroll, or a fisheye lensShape and symmetryselectnoneNoNo
Warp amountHow strong the warp isShape and symmetryrange0.5YesYes
Warp centreWhere the warp is centred in the frameShape and symmetryselectcentreNoNo
ViscosityHow quickly the flow settles: thick ink spreads slowly and stops soonerInkrange0.55YesYes
DissipationShare of the ink that fades each secondInkrange0.35YesYes
CurlVorticity: how tightly the flow curls into eddies, and how hard the snare spins themInkrange0.35YesYes
BuoyancyHow strongly the ink rises with the bassInkrange0.4YesYes
Ink densityHow opaque and saturated the ink readsInkrange0.75YesYes
Paper toneThe ground under the ink, from dark water at 0 to paper at 1Inkrange0YesYes
Injection pointsHow many places pigment enters, each pouring with its own bandInkrange3YesNo
ResolutionSimulation grid detail: finer flow at a higher costInkrange0.5YesNo
VersionPlay an earlier version of this visualizer. Current look follows every future update.VersionselectcurrentNoNo