Soft aurora borealis shader with 3D Perlin noise and cosine gradient palettes.
Every prop is wired to the controls underneath. Move the pointer over the aurora and it drifts with it.
| Prop | Type | Default | Description |
|---|---|---|---|
speed | number | 0.6 | Overall animation speed multiplier. |
scale | number | 1.5 | Scale of the noise pattern. |
brightness | number | 1.0 | Overall brightness multiplier. |
color1 | string | "#f7f7f7" | Tint color for the first aurora layer. |
color2 | string | "#e100ff" | Tint color for the second aurora layer. |
noiseFrequency | number | 2.5 | Base frequency of the Perlin noise. |
noiseAmplitude | number | 1.0 | Base amplitude of the Perlin noise. |
bandHeight | number | 0.5 | Vertical position of the aurora band (0-1). |
bandSpread | number | 1.0 | Vertical spread of the aurora glow. |
octaveDecay | number | 0.1 | Amplitude decay per noise octave. |
layerOffset | number | 0 | Time offset between the two aurora layers. |
colorSpeed | number | 1.0 | Speed of palette color shifting. |
enableMouseInteraction | boolean | true | Enable cursor-reactive aurora offset. |
mouseInfluence | number | 0.25 | Strength of the mouse offset effect. |
lightMode | boolean | false | Renders the aurora as ink on a white background. |
Keyboard shortcuts and ARIA behavior.