LensDistortion

Split content into shifting chromatic layers with barrel or pincushion lens warp. Powered by Paper Shaders.

Props

  • center

    The center point of the lens effect — the focus zone, lens warp, circle crop and swirl all pivot around it

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

  • spread

    Strength of the color split; how far the color layers are pushed apart (0 is off)

    Type
    number
    Default
    0.6

  • angle

    Direction of the spread in degrees

    Type
    number
    Default
    0

  • perspective

    Shapes the spread direction from a straight line (0) to a radial burst out from the centre (1)

    Type
    number
    Default
    0.1

  • bias

    Shifts the colors toward one end of the spread; 0 spaces them evenly

    Type
    number
    Default
    1

  • count

    Number of sampled color layers along the spread; higher is smoother and costlier

    Type
    number
    Default
    35

  • dispersion

    Overall amount of color dispersion; 1 gives each layer its own color from the spectrum, 0 keeps the original color

    Type
    number
    Default
    1

  • dispersionShift

    Balance of the dispersion between a soft circular zone at the centre and the rest; -1 keeps it in the centre only, 1 at the edges only

    Type
    number
    Default
    0

  • dispersionColor

    Rotates the dispersion colors around the hue wheel, 0 to 1 for a full turn

    Type
    number
    Default
    0.6

  • focusCenter

    Reduces the spread in a circular zone at the centre; 0 keeps it full to the centre

    Type
    number
    Default
    0.8

  • focusEdges

    Reduces the spread toward the edges; 1 restores the original image there

    Type
    number
    Default
    1

  • lensBulge

    Radial lens warp; positive bulges out like a fisheye, negative pinches in like a pincushion

    Type
    number
    Default
    0

  • lensCircle

    Squeezes pixels outside the inscribed circle inward so the outline becomes a circle

    Type
    number
    Default
    0

  • swirl

    Rotates the color layers around the centre by an angle growing along the spread; 0 is off

    Type
    number
    Default
    0.35

  • noise

    Scatters the spread direction with noise; 0 is off

    Type
    number
    Default
    0

  • noiseFrequency

    Frequency of the direction noise; higher is finer (no effect with noise at 0)

    Type
    number
    Default
    0.25

  • noiseOffset

    Offsets the noise pattern for a different seed (no effect with noise at 0)

    Type
    number
    Default
    0

  • grainMixer

    Scatters the spread with grain noise, breaking up the edges of the color layers

    Type
    number
    Default
    0

  • grainOverlay

    Post-processing black/white grain overlay

    Type
    number
    Default
    0

Usage

<Shader>
  <LensDistortion>
    <Circle />
  </LensDistortion>
</Shader>