Strata (strata)
Earth: folded sandstone layers that drift slowly.
{
"$schema": "https://aurora.goatsoft.io/schema/v1.json",
"format": "aurora",
"version": 1,
"name": "Strata starter",
"palette": [
"oklch(0.46 0.11 34)",
"oklch(0.67 0.13 50)",
"oklch(0.9 0.05 78)"
],
"layers": [
{
"type": "strata"
}
]
}
This is presets/starters/strata.aurora: the generator alone, with its defaults.
Colours
A layer’s colors picks 3 palette colours, in the order below. To recolour part of the background, change the palette colour in that position.
| Position | Paints | Default |
|---|---|---|
| 0 | Darkest layers | oklch(0.46 0.11 34) |
| 1 | Middle layers | oklch(0.67 0.13 50) |
| 2 | Lightest layers | oklch(0.9 0.05 78) |
Parameters
Every parameter is optional; one you leave out uses its default.
| Name | Label | Default | Range | What it does |
|---|---|---|---|---|
bands | Bands | 9 | 2 to 30 | Number of sediment layers across the canvas. |
fold | Fold | 0.32 | 0 to 2.5 | How much the layers bend and swirl. |
detail | Detail | 0.35 | 0 to 1 | Fine bedding lines inside each layer. |
angle | Angle | -12 deg | -90 to 90 | Tilt of the layers. |
speed | Speed | 0.02 | 0 to 0.3 | Geological drift: how fast the layers flow. |
scale | Scale | 1 | 0.3 to 4 | Higher gives smaller, tighter folds. |
seed | Seed | 0 | 0 to 100 | A different rock face. |
Implementation note
Built on the shared noise library: fbm, hash.