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GpuParticleSystem

proof_engine::render::compute

Struct GpuParticleSystem 

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pub struct GpuParticleSystem {
Show 19 fields
    pub pipeline: ComputePipeline,
    pub max_particles: usize,
    pub particle_buf_a: BufferId,
    pub particle_buf_b: BufferId,
    pub attractor_buf: BufferId,
    pub dead_list_buf: BufferId,
    pub indirect_buf: BufferId,
    pub params_ubo: BufferId,
    pub integrate_pass: ComputePassId,
    pub emit_pass: ComputePassId,
    pub count_pass: ComputePassId,
    pub sort_pass: ComputePassId,
    pub frame: u64,
    pub initial_particles: Vec<GpuParticle>,
    pub attractors: Vec<GpuAttractor>,
    pub gravity: [f32; 3],
    pub drag: f32,
    pub emit_rate: f32,
    pub do_sort: bool,

}
Expand description

Complete GPU particle system configuration and state.

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§pipeline: ComputePipeline§max_particles: usize§particle_buf_a: BufferId§particle_buf_b: BufferId§attractor_buf: BufferId§dead_list_buf: BufferId§indirect_buf: BufferId§params_ubo: BufferId§integrate_pass: ComputePassId§emit_pass: ComputePassId§count_pass: ComputePassId§sort_pass: ComputePassId§frame: u64

Which buffer is “current” (ping/pong).

§initial_particles: Vec<GpuParticle>§attractors: Vec<GpuAttractor>§gravity: [f32; 3]§drag: f32§emit_rate: f32§do_sort: bool

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impl GpuParticleSystem

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pub fn new(max_particles: usize) -> Self

Build a complete 100K particle system pipeline.

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pub fn add_attractor(&mut self, a: GpuAttractor)

Add an attractor.

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pub fn spawn_burst( &mut self, origin: [f32; 3], count: usize, speed: f32, lifetime: f32, )

Spawn initial particles (CPU-side setup for upload).

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pub fn advance_frame(&mut self)

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pub fn current_buffer(&self) -> BufferId

Current particle buffer (ping-pong).

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pub fn frame_params(&self, dt: f32) -> HashMap<String, f32>

Build dispatch parameters for this frame.

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