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Engine · v4.0.0

Halloween Night

A moonlit hillside on Halloween night: carved lanterns that glow with the mix, bats across the moon, rolling fog, a dewy web and ghost lights. Spooky, never gory.

Halloween Night engine preview

6 modes

Launch modes

Pumpkin Patch mode

Pumpkin Patch

A row of carved jack-o'-lanterns on a moonlit hill, each glowing with its own slice of the mix; the kick flares the big lantern's face and every new section draws the moon out of the clouds.

Bat Moon mode

Bat Moon

A flock of bats wheels across a huge rising moon; the mids beat their wings, snares scatter them and the kick swells the moon's halo.

Foggy Path mode

Foggy Path

A floating lantern bobs toward you down a fog-filled path lined with little lanterns that light up band by band.

Dew Web mode

Dew Web

A dewy spider web in front of the moon as a radial spectrum: each spoke's dew glints with its own band and the kick trembles the web from its centre.

Candle Ring mode

Candle Ring

A ring of candles around your cover art or logo on a misty hilltop, or around a carved lantern until you add one; each flame is a band of the mix and the kick lifts them all.

Wisp Trails mode

Wisp Trails

Green ghost lights snake through a foggy forest, trailing light; each wisp follows its own band and the lead wisp flares on the kick.

36 controls

Controls

ControlGroupTypeDefaultAnimationAudio
Primary colorPrimary color used by the engine paletteStylecolor#ff7a1aYesNo
Secondary colorSecondary color used by the engine paletteStylecolor#7c3aedYesNo
BackgroundBackground used by the engine paletteStylecolor#0b0613YesNo
OpacityVisualizer opacityTransformrange1YesNo
SensitivityBounded overall audio responseAudiorange1YesNo
Spectrum rangeHow much of the 40 Hz to 14 kHz range the visual spans, from the bass up. Lower it to give the bass and mids more of the barsAudiorange1YesNo
Frequency scaleHow the bars are spread across the frequencies. Log spreads them by octave, mel by how pitch is heard, and linear by hertz, which gives most bars to the highsAudioselectlogNoNo
Auto-levelLifts every part of the spectrum to its own recent range, so quiet highs move as much as loud bass. A note held for several seconds settles lower as it adapts. 0 shows the raw spectrumAudiorange0.8YesNo
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
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
FogHow much mist rolls across the scene; the low mids roll itScenerange0.55YesYes
Embers & starsHow many embers, stars, dew glints and motes the highs light upScenerange0.6YesYes
Moon sizeSize of the moon in the sky (in Bat Moon, the moon the flock circles)Scenerange1YesNo
BatsHow many bats fly; the mids beat their wings and snares scatter themScenerange0.6YesNo