#include <bgfx/bgfx.h>
#include <bgfx/embedded_shader.h>
#include "particle_system.h"
#include <graphics/utils/bgfx_utils.h>
#include <bx/easing.h>
#include <bx/handlealloc.h>
#include <math/math.h>
#include <vector>
#include <algorithm>
#include <engine/profiler/profiler.h>

Classes
struct	PosColorTexCoord0Vertex

struct	ParticleVertex

struct	ps::Particle

struct	ps::ParticleSort

struct	ps::Emitter

struct	ps::ParticleSystem

struct	ps::ParticleSystem::BatchedParticle

Namespaces
namespace	ps

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)

void	psRenderEmitter (EmitterHandle _handle, uint8_t _view, bgfx::ProgramHandle _program, const float *_mtxView, const math::vec3 &_eye, bgfx::TextureHandle _texture)

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)

Function Documentation

◆ psCreateEmitter()

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

Definition at line 1053 of file particle_system.cpp.

◆ psDestroyEmitter()

void psDestroyEmitter ( EmitterHandle _handle )

Definition at line 1085 of file particle_system.cpp.

◆ psGetAabb()

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

Definition at line 1070 of file particle_system.cpp.

◆ psGetNumParticles()

uint32_t psGetNumParticles ( EmitterHandle _handle )

Definition at line 1075 of file particle_system.cpp.

◆ psHasUpdated()

bool psHasUpdated ( EmitterHandle _handle )

Definition at line 1080 of file particle_system.cpp.

◆ psInit()

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

Definition at line 1041 of file particle_system.cpp.

◆ psRenderEmitter()

void psRenderEmitter	(	EmitterHandle	_handle,
		uint8_t	_view,
		bgfx::ProgramHandle	_program,
		const float *	_mtxView,
		const math::vec3 &	_eye,
		bgfx::TextureHandle	_texture )

Definition at line 1090 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 )

Render multiple emitters in a single batched draw call (all must use the same texture) This is much more efficient than calling psRenderEmitter multiple times as it:

Combines all particles into a single instance buffer
Sorts all particles globally for proper alpha blending
Uses only one draw call instead of multiple

Example usage: EmitterHandle handles[] = {fire_emitter, smoke_emitter, spark_emitter}; psRenderEmitterBatch(handles, 3, view, program, viewMatrix, cameraPos, fireTexture);

Definition at line 1100 of file particle_system.cpp.

◆ psResetEmitter()

void psResetEmitter ( EmitterHandle _handle )

Definition at line 1063 of file particle_system.cpp.

◆ psShutdown()

void psShutdown ( )

Definition at line 1046 of file particle_system.cpp.

◆ psUpdateEmitter()

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

Definition at line 1058 of file particle_system.cpp.

Classes

Namespaces

Functions