radialMask

An amount that is 0 near a center and grows to 1 with distance, for an effect's strength.

radialMask(slots: {center: PropRef; radius: PropRef; falloff: PropRef}): Scalar

Import mask from shaders/std and use mask.radialMask.

Coverage stays 0 inside radius and reaches 1 at radius + falloff, measured in uv with the aspect corrected so the ring is round. Every slot takes a prop: center is a position prop, radius and falloff are numbers in uv. Chain .times(p('intensity')) to scale it.

Parameters

Example

effect: tintToward(p('color'), {amount: radialMask({center: p('center'), radius: p('radius'), falloff: p('falloff')}).times(p('intensity'))})

Tip. Also exported at the top level of shaders/std, so radialMask works without the mask. prefix.

See also

• softDisc — A filled disc with a soft, shaped edge.

Used by

Vignette