filmGrain

Sprinkle film grain over the child, heaviest in the shadows.

filmGrain(slots: {strength: ArgSpec; bias: ArgSpec; animated: PropRef}): PointwiseEffect

Import effects from shaders/std and use effects.color.filmGrain.

strength (0–1) sets how visible the grain is. bias (0–10) concentrates it in darker areas; 0 grains everything evenly. While the boolean animated prop is on the pattern changes every frame; off, it freezes. The definition must declare the grain's clock: extraFields: {animTime: {schema: schema.f32, initial: 0}}. Alpha kept.

Parameters

Example

effect: filmGrain({strength: p('strength'), bias: p('bias'), animated: p('animated')})

Tip. Declare identityWhen: isZero('strength').

See also

• posterize — Reduce the child to a few flat color levels, like a screen-printed poster.

Used by

FilmGrain