Struct EmitterConfig 

#[non_exhaustive]
pub struct EmitterConfig {
    pub rate: f32,
    pub lifetime: (f32, f32),
    pub initial_velocity: VelocityDist,
    pub spawn_shape: SpawnShape,
    pub colour: [f32; 4],
    pub size: f32,
}

Emitter configuration for a GPU particle system.

All fields are independent of any simulation state on the GPU; the host can change them between frames and the next emit pass picks up the new values.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

rate: f32

New particles per second. Fractional values accumulate across frames.

lifetime: (f32, f32)

Range of per-particle lifetimes in seconds. Each new particle gets a uniformly sampled value in [lifetime.0, lifetime.1].

initial_velocity: VelocityDist

Initial velocity distribution.

spawn_shape: SpawnShape

Spawn shape relative to world space.

colour: [f32; 4]

Per-particle RGBA tint, multiplied with any texture sample at draw time.

size: f32

Per-particle starting size. Pixels (ScreenSpace) or world units (WorldSpace) per the system’s render config.

Trait Implementations

impl Clone for EmitterConfig

fn clone(&self) -> EmitterConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EmitterConfig

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

Formats the value using the given formatter.

impl Default for EmitterConfig

fn default() -> Self

Returns the “default value” for a type.