Engine · v5.8.0

Rollercoaster

A steel rollercoaster drawn with code and run on real physics: the train climbs the chain lift through the build, tips over the crest on the drop and races through a clothoid loop, a corkscrew, a banked helix and airtime hills, its speed from the height it fell. Six ways to watch it: the lift hill at dusk, the front seat, the park at night, the loop up close, an engineer's blueprint with live speed and g-force plots, and opening night's fireworks.

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6 modes

Launch modes

Lift Hill & Drop

The lift hill and the first drop from the side at dusk: the chain hauls the train up through the build while the lift's lights fill beside it, the crest tips over on the drop and the train plunges toward the loop, riders' hands in the air.

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Front Seat

The rider's view from the front car: up the last of the lift with the park spread out below, over the crest on the drop, through the loop and the corkscrew, the horizon banking and turning over with the track.

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Night Park

The whole circuit from above at night: lights chasing along the rails with the beat, every train a comet of light, the big wheel and the carousel lit, fireworks over the park.

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The Loop

Close on the clothoid loop and the corkscrew in the late sun: the train dives in from the drop, turns upside down at the top and rolls through the corkscrew, its cars trailing light.

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Blueprint

An engineer's drawing of the circuit, plan and elevation, every element named and measured, the trains moving on it and the ride's speed and g-force plotted live underneath.

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Grand Opening

Opening night: the coaster against fireworks and searchlights, the park's lights and the crowd below, all of it bursting as the train goes over the drop.

Classic Studio

50 controls

Controls

Control	Group	Type	Default	Animation	Audio
Primary colorPrimary color used by the engine palette	Style	color	#e8432e	Yes	No
Secondary colorSecondary color used by the engine palette	Style	color	#ffb547	Yes	No
BackgroundBackground used by the engine palette	Style	color	#1b1233	Yes	No
OpacityVisualizer opacity	Transform	range	1	Yes	No
SensitivityBounded overall audio response	Audio	range	1	Yes	No
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 bars	Audio	range	1	Yes	No
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 highs	Audio	select	log	No	No
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 spectrum	Audio	range	0.8	Yes	No
Primary audio sourcePrimary audio source	Audio	select	bass	No	No
Frequency focusWhich part of the spectrum drives this visual; while no explicit audio source is set, the motion envelope follows this selection	Audio	select	full	No	No
Burst intensityGlow and trail swell on sharp hits; 0 keeps bursts off	Audio	range	0	Yes	No
Ambient bedProminence of the standing background layer behind the beat-born elements	Effects	range	1	Yes	No
Wake lengthHow far motion trails stretch behind beat-born travelers; 0 removes the wake	Effects	range	1	Yes	No
Audio contributionMaximum contribution from the primary audio route	Audio	range	0.55	Yes	No
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 look	Audio	range	1	Yes	No
Audio attackEnvelope attack in milliseconds	Audio	range	45	Yes	No
Audio releaseEnvelope release in milliseconds	Audio	range	240	Yes	No
Geometry scaleGeometry scale	Geometry	range	1	Yes	Yes
Motion directionRotate the animated visual pass to face this direction; the general background stays fixed	Motion	select	none	No	No
SpeedTime-based motion; default major cycle is 6–12 seconds	Motion	range	0.1	Yes	Yes
Color modeDuo palette, primary→secondary gradient, or full rainbow sweep	Style	select	duo	No	No
GlowGlow	Effects	range	0.55	Yes	Yes
Global glowShared emissive strength across the frame	Effects	range	0.35	Yes	Yes
Pulse intensityBeat pulse scale for spawn, size, and shake	Effects	range	1	Yes	Yes
Beat responseHow hard every engine hits on each detected beat	Audio	range	1.2	Yes	Yes
Beat smoothingHow long each beat hit rings out before it settles	Audio	range	0.35	Yes	Yes
Beat attackSeconds for a hit to swell to full. 0 snaps instantly	Audio	range	0	Yes	Yes
Beat releaseSeconds for a hit to fade, overriding Beat smoothing. 0 follows it	Audio	range	0	Yes	Yes
Beat shakeFrame kick strength on each beat	Effects	range	0.6	Yes	Yes
Motion echoMotion echo	Effects	range	0	Yes	Yes
BlurBlur	Effects	range	0	Yes	Yes
Chromatic aberrationChromatic aberration	Effects	range	0	Yes	Yes
Beat sync allRoute beat energy into spawn, shake, pulse, speed, and scale	Audio	boolean	true	No	No
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 symmetry	select	none	No	No
Kaleidoscope foldsHow many mirrored copies go round the kaleidoscope	Shape and symmetry	range	6	Yes	No
Symmetry angleTurns the mirror line, or the kaleidoscope, in degrees	Shape and symmetry	range	0	Yes	Yes
Kaleidoscope spinHow fast the kaleidoscope turns, in turns per bar of the song (0.25 is once a phrase)	Shape and symmetry	range	0	Yes	Yes
Tile sizeEach tile's size as a share of the frame	Shape and symmetry	range	0.5	Yes	No
Tile gapThe gap between tiles, as a share of a tile; it shows the background colour	Shape and symmetry	range	0	Yes	No
WarpBend the whole picture: a twist, a bulge, waves or ripples that move once a bar, a polar unroll, or a fisheye lens	Shape and symmetry	select	none	No	No
Warp amountHow strong the warp is	Shape and symmetry	range	0.5	Yes	Yes
Warp centreWhere the warp is centred in the frame	Shape and symmetry	select	centre	No	No
Park lightsHow bright the lights: the lift's bulbs that fill as the train climbs, the chase lights on the rails and the park's lamps and rides. They pulse with the kick	Park	range	1	Yes	Yes
FireworksHow many fireworks go up on the beat, and how big the volley on the drop	Park	range	1	Yes	Yes
CloudsClouds drifting across the sky	Park	range	0.6	Yes	Yes
RidersRiders in the cars, their hands going up when the train floats over a hill	Ride	select	on	No	No
Horizon lockHow much the front seat's camera keeps the horizon level through banked turns, for a calmer view. Loops and the corkscrew still turn over	Ride	range	0.5	Yes	No
Speed and g plotThe live plot of the train's speed and the riders' g-force under the drawing	Ride	select	on	No	No
VariationAnother take on the park: where the trees, the stalls and the big wheel stand. The same number always gives the same park	Park	range	0	Yes	No
Title and artistShow or hide the song title and artist this visualizer draws.	Text	select	auto	No	No