Module gpu_particles 

GPU-style particle system simulated on the CPU.

Provides a complete particle simulation pipeline including emission, integration, forces (gravity, turbulence), collision response, pooling, and render-data collection for billboard quads.

Structs

BillboardVertex

Render-ready vertex data for a single billboard quad corner.

ColorOverLife

Lerps a particle’s color from birth_color to death_color over its life.

GpuParticle

A single GPU-style particle with position, velocity, life, color and size.

GravityForce

Constant downward gravitational acceleration applied to particles.

Lcg

Simple linear congruential random number generator for particle systems.

ParticleCollider

Particle-plane collision with restitution coefficient.

ParticleEmitter

Emits particles from a point with configurable velocity distribution and lifetime.

ParticleIntegrator

Explicit Euler integrator for particles: pos += vel * dt, life -= dt.

ParticlePool

Fixed-capacity particle pool with a free list for O(1) emit/recycle.

ParticleRenderer

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

RenderBatch

Output of the particle renderer: sorted vertices and indices.

SizeOverLife

Modulates a particle’s size along its lifetime via a simple quadratic curve.

TurbulenceForce

Pseudo-random turbulence force using a curl-noise-like field.

Functions

tick

Convenience function: run one full simulation tick on a pool.