Struct ParticleRenderer 

pub struct ParticleRenderer {
    pub camera_pos: [f32; 3],
    pub camera_right: [f32; 3],
    pub camera_up: [f32; 3],
}

Collects alive particles, depth-sorts them back-to-front, and generates billboard quad geometry aligned to the view plane.

Fields

camera_pos: [f32; 3]

Camera position used for depth sorting and billboard orientation.

camera_right: [f32; 3]

Camera right vector (normalised).

camera_up: [f32; 3]

Camera up vector (normalised).

Implementations

impl ParticleRenderer

pub fn new() -> Self

Create a renderer with a default front-facing camera.

pub fn set_camera(&mut self, pos: [f32; 3], right: [f32; 3], up: [f32; 3])

Update camera orientation.

pub fn render(&self, particles: &[GpuParticle]) -> RenderBatch

Build a RenderBatch from alive particles, sorted back-to-front.

Trait Implementations

impl Clone for ParticleRenderer

fn clone(&self) -> ParticleRenderer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParticleRenderer

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

Formats the value using the given formatter.

impl Default for ParticleRenderer

fn default() -> Self

Returns the “default value” for a type.