Struct ColorCurve 

pub struct ColorCurve {
    pub stops: Arc<[(f32, [f32; 4])]>,
    pub easing: Easing,
}

Nonuniform premultiplied color keyframes, evaluated without accumulated state.

Fields

stops: Arc<[(f32, [f32; 4])]>

Normalized times and finite premultiplied colors.

easing: Easing

Interpolation easing.

Implementations

impl ColorCurve

pub fn sample(&self, progress: f32) -> Result<[f32; 4], ValidationError>

Samples validated finite keyframes.

Trait Implementations

impl Clone for ColorCurve

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl ParticleModifier for ColorCurve

fn apply( &self, particle: &mut Particle, _: f32, _: Time, _: &mut Random, ) -> Result<(), ValidationError>

Updates one live particle; index and canonical age remain engine-owned.

fn resets_color(&self) -> bool

Requests birth-color restoration before the ordered modifier chain. Multiplicative lifetime energy curves use this to avoid frame-count accumulation.

fn work(&self) -> u64

Conservative per-particle operator work charged before replay.

fn apply_event( &self, particle: &mut Particle, step_seconds: f32, time: Time, random: &mut Random, ) -> Result<bool, ValidationError>

Optional predicted-step collision response, preserving the original callback API.