Engraving

Copper-plate line engraving — the image is redrawn as flowing line work whose weight swells with darkness, lines displaced by the form like a banknote portrait: a single plate, cross-hatched shadow plates, or one continuous spiral cut

Props

  • style

    The engraving cut: a single line plate, cross-hatched plates building up the shadows, or one continuous spiral

    Type
    "line" | "crosshatch" | "spiral"
    Default
    crosshatch

  • frequency

    Line density — how many engraved lines span the height of the canvas

    Type
    number
    Default
    90

  • angle

    Direction of the base line work (in degrees)

    Type
    number
    Default
    8

  • center

    Center the spiral coils outward from

    Type
    {x: number, y: number}
    Default
    {"x":0.5,"y":0.5}

  • relief

    How strongly the image brightness displaces the lines — the engraved 'lines climb over the form' effect

    Type
    number
    Default
    0.6

  • waviness

    Organic meander of the line work, like a hand-pulled burin stroke

    Type
    number
    Default
    0.35

  • contrast

    Tonal contrast applied before the lines are cut — higher pushes mid-tones toward pure line or pure paper

    Type
    number
    Default
    1.15

  • inkColor

    Color of the engraved ink

    Type
    string
    Default
    #1a1410

  • paperColor

    Paper color shown between the lines

    Type
    string
    Default
    #f4eee2

Usage

<Shader>
  <Engraving>
    <Circle />
  </Engraving>
</Shader>