Interface ParticleAttribute<T>

Describes an animated attribute: it transitions from start to end over the particle's lifetime, optionally with a per-second damping factor.

interface ParticleAttribute<T = number> {
    damping?: number;
    delta?: T;
    end?: T | [T, T];
    start?: T | [T, T];
}

Properties

damping?: number

Multiplicative damping applied each second. e.g. 0.9 means the value is multiplied by 0.9^deltaTime every frame.

delta?: T

Explicit per-second delta override. If omitted it is derived from start/end/lifetime automatically.

end?: T | [T, T]

Ending value. Defaults to start if omitted (no change over time).

start?: T | [T, T]

Starting value (scalar, range tuple, or fixed value).