Struct ColorOverLifetime 

pub struct ColorOverLifetime {
    pub stops: Arc<[[f32; 4]]>,
}

Piecewise-linear linear-premultiplied RGBA over normalized lifetime.

Fields

stops: Arc<[[f32; 4]]>

Evenly spaced color stops, one to 256.

Implementations

impl ColorOverLifetime

pub fn new(stops: impl Into<Arc<[[f32; 4]]>>) -> Self

Creates a color ramp from evenly spaced stops.

impl ColorOverLifetime

pub fn curve(self, easing: Easing) -> ColorCurve

Converts equally spaced stops to an explicit time/easing curve.

Trait Implementations

impl Clone for ColorOverLifetime

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColorOverLifetime

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl ParticleModifier for ColorOverLifetime

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.