#include <bgfx/bgfx.h>
#include <bgfx/embedded_shader.h>
#include "particle_system.h"
#include "bx/bx.h"
#include <graphics/utils/bgfx_utils.h>
#include <bx/easing.h>
#include <bx/handlealloc.h>
#include <math/math.h>
#include <glm/gtc/random.hpp>
#include <algorithm>
#include <cstdint>
#include <vector>
#include <engine/profiler/profiler.h>
#include <core/logging/logging.h>
#include <poolstl/poolstl.hpp>

Classes
struct	ParticleVertex

struct	ps::Particle

struct	ps::Emitter

struct	ps::ParticleSystem

struct	ps::ParticleSystem::BatchedParticle

Namespaces
namespace	ps

Macros
#define	POOLSTL_STD_SUPPLEMENT 1

Functions
void	psInit (uint16_t _maxEmitters, bx::AllocatorI *_allocator)

void	psShutdown ()

EmitterHandle	psCreateEmitter (EmitterShape::Enum _shape, EmitterDirection::Enum _direction, uint32_t _maxParticles)

void	psUpdateEmitter (EmitterHandle _handle, float _dt, EmitterUniforms *_uniforms)

void	psResetEmitter (EmitterHandle _handle)

void	psGetAabb (EmitterHandle _handle, math::bbox &_outAabb)

uint32_t	psGetNumParticles (EmitterHandle _handle)

bool	psHasUpdated (EmitterHandle _handle)

void	psDestroyEmitter (EmitterHandle _handle)

uint32_t	psRenderEmitterBatch (const EmitterHandle _handles, uint32_t _count, uint8_t _view, bgfx::ProgramHandle _program, const float _mtxView, const math::vec3 &_eye, bgfx::TextureHandle _texture, uint64_t _blend_state, bool _sort_by_depth)

Variables
static ParticleVertex	s_quadVertices [4]

static const uint16_t	s_quadIndices [6]

static ParticleSystem	ps::s_ctx

Macro Definition Documentation

◆ POOLSTL_STD_SUPPLEMENT

#define POOLSTL_STD_SUPPLEMENT 1

Definition at line 24 of file particle_system.cpp.

Function Documentation

◆ psCreateEmitter()

EmitterHandle psCreateEmitter	(	EmitterShape::Enum	_shape,
		EmitterDirection::Enum	_direction,
		uint32_t	_maxParticles )

Definition at line 1570 of file particle_system.cpp.

◆ psDestroyEmitter()

void psDestroyEmitter ( EmitterHandle _handle )

Definition at line 1602 of file particle_system.cpp.

◆ psGetAabb()

void psGetAabb	(	EmitterHandle	_handle,
		math::bbox &	_outAabb )

Definition at line 1587 of file particle_system.cpp.

◆ psGetNumParticles()

uint32_t psGetNumParticles ( EmitterHandle _handle )

Definition at line 1592 of file particle_system.cpp.

◆ psHasUpdated()

bool psHasUpdated ( EmitterHandle _handle )

Definition at line 1597 of file particle_system.cpp.

◆ psInit()

void psInit	(	uint16_t	_maxEmitters,
		bx::AllocatorI *	_allocator )

Definition at line 1558 of file particle_system.cpp.

◆ psRenderEmitterBatch()

uint32_t psRenderEmitterBatch	(	const EmitterHandle *	_handles,
		uint32_t	_count,
		uint8_t	_view,
		bgfx::ProgramHandle	_program,
		const float *	_mtxView,
		const math::vec3 &	_eye,
		bgfx::TextureHandle	_texture,
		uint64_t	_blend_state,
		bool	_sort_by_depth = true )

Submit one homogeneous particle batch: same texture, TextureMode (mask vs multi-channel), and BlendMode. RenderMode is per-instance. The pipeline groups emitters by material. When _sort_by_depth is true, instances are sorted back-to-front (sequential for small counts, parallel above a threshold) then gathered into the instance buffer. When false, particles are streamed directly from each emitter's array in emission order (additive / order-independent blends) with no sort-key scratch. May issue multiple submits if the transient instance buffer is smaller than the particle count.

Definition at line 1607 of file particle_system.cpp.

◆ psResetEmitter()

void psResetEmitter ( EmitterHandle _handle )

Definition at line 1580 of file particle_system.cpp.

◆ psShutdown()

void psShutdown ( )

Definition at line 1563 of file particle_system.cpp.

◆ psUpdateEmitter()

void psUpdateEmitter	(	EmitterHandle	_handle,
		float	_dt,
		EmitterUniforms *	_uniforms )

Definition at line 1575 of file particle_system.cpp.

Variable Documentation

◆ s_quadIndices

const uint16_t s_quadIndices[6]

static

Initial value:

= {
    0, 1, 2, 2, 3, 0
}

Definition at line 56 of file particle_system.cpp.

◆ s_quadVertices

ParticleVertex s_quadVertices[4]