Struct ParticleEmitter 

pub struct ParticleEmitter {
    pub params: EmitterParams,
    pub tex_scale_x: f32,
    pub tex_scale_y: f32,
    /* private fields */
}

Runtime particle emitter

Fields

params: EmitterParams

Current parameters from animation

tex_scale_x: f32

Texture scale X (1 / rows)

tex_scale_y: f32

Texture scale Y (1 / cols)

Implementations

impl ParticleEmitter

pub fn new(m2_emitter: &M2ParticleEmitter) -> Self

Create a new particle emitter from parsed M2 data

pub fn bone_index(&self) -> u16

Get the bone index this emitter is attached to

pub fn texture_index(&self) -> u16

Get the texture index

pub fn blend_mode(&self) -> BlendMode

Get the blend mode

pub fn particle_count(&self) -> usize

Get the current number of particles

pub fn max_particles(&self) -> usize

Get the maximum number of particles

pub fn update( &mut self, dt_ms: f32, bone_transform: &[f32; 16], bone_post_billboard: &[f32; 16], )

Update the emitter

Arguments

• dt_ms - Delta time in milliseconds
• bone_transform - 4x4 bone transform matrix (column-major)
• bone_post_billboard - 4x4 post-billboard transform matrix (column-major)

pub fn update_params(&mut self, params: EmitterParams)

Update parameters from animation state

Call this before update() to sync animated parameters.

pub fn fill_texture_data(&self) -> Vec<f32>

Fill texture data for GPU upload

Returns a Vec of f32 values in the format:

• Texel 0: position.xyz + 0.0
• Texel 1: color.rgba
• Texel 2: scale.xy + 0.0 + 0.0
• Texel 3: tex_coord.xy + 0.0 + 0.0

Trait Implementations

impl Clone for ParticleEmitter

fn clone(&self) -> ParticleEmitter

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParticleEmitter

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

Formats the value using the given formatter.