Struct VelocityDef 

pub struct VelocityDef {
    pub base: [f32; 3],
    pub spread: f32,
    pub cone: Option<ConeDef>,
}

Initial particle velocity: a fixed base, an isotropic spread, and an optional directional cone — the three compose by addition.

Fields

base: [f32; 3]

Velocity every particle starts from, world units/second. Remember +z is down: a fountain fires with negative z.

spread: f32

Magnitude of the random isotropic kick added to base: each particle adds a uniformly random direction scaled by a uniform 0..spread speed. 0.0 (default) = no randomness.

cone: Option<ConeDef>

Optional cone kick added on top (PS.2). None (default) = no directional term.

Trait Implementations

impl Clone for VelocityDef

fn clone(&self) -> VelocityDef

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VelocityDef

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

Formats the value using the given formatter.

impl Default for VelocityDef

fn default() -> VelocityDef

Returns the “default value” for a type.