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Scan lines (scanlines)

Tech: a luminous CRT raster with soft scan lines and a slow rolling exposure band.

{
  "$schema": "https://aurora.goatsoft.io/schema/v1.json",
  "format": "aurora",
  "version": 1,
  "name": "Scan lines starter",
  "palette": [
    "oklch(0.12 0.03 285)",
    "oklch(0.48 0.1 230)",
    "oklch(0.8 0.12 195)"
  ],
  "layers": [
    {
      "type": "scanlines"
    }
  ]
}

This is presets/starters/scanlines.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.

PositionPaintsDefault
0Dark fieldoklch(0.12 0.03 285)
1Raster linesoklch(0.48 0.1 230)
2Rolling exposure highlightsoklch(0.8 0.12 195)

Parameters

Every parameter is optional; one you leave out uses its default.

NameLabelDefaultRangeWhat it does
spacingSpacing6 px2 to 24Distance between scan lines in canvas pixels.
softnessSoftness0.40 to 1Softness of the raster lines.
strengthStrength0.40 to 1Brightness of the raster lines.
speedDrift0.0450 to 0.2Speed of the travelling exposure band; 0 keeps it still.
rollRoll0.50 to 1Brightness of the broad exposure band.
phasePhase0.20 to 1Starting position of the exposure band.