particle_system.c File Reference

#include <stddef.h>
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include "MEM_guardedalloc.h"
#include "DNA_anim_types.h"
#include "DNA_boid_types.h"
#include "DNA_cloth_types.h"
#include "DNA_curve_types.h"
#include "DNA_listBase.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_modifier_types.h"
#include "DNA_object_force_types.h"
#include "DNA_object_types.h"
#include "DNA_particle_types.h"
#include "DNA_scene_types.h"
#include "DNA_texture_types.h"
#include "BLI_blenlib.h"
#include "BLI_edgehash.h"
#include "BLI_kdopbvh.h"
#include "BLI_kdtree.h"
#include "BLI_linklist.h"
#include "BLI_math.h"
#include "BLI_rand.h"
#include "BLI_string_utils.h"
#include "BLI_task.h"
#include "BLI_threads.h"
#include "BLI_utildefines.h"
#include "BKE_animsys.h"
#include "BKE_boids.h"
#include "BKE_collision.h"
#include "BKE_colortools.h"
#include "BKE_effect.h"
#include "BKE_lib_id.h"
#include "BKE_lib_query.h"
#include "BKE_particle.h"
#include "BKE_bvhutils.h"
#include "BKE_cloth.h"
#include "BKE_collection.h"
#include "BKE_lattice.h"
#include "BKE_material.h"
#include "BKE_mesh.h"
#include "BKE_modifier.h"
#include "BKE_object.h"
#include "BKE_pointcache.h"
#include "BKE_scene.h"
#include "DEG_depsgraph.h"
#include "DEG_depsgraph_physics.h"
#include "DEG_depsgraph_query.h"
#include "PIL_time.h"
#include "RE_texture.h"

Go to the source code of this file.

Classes
struct	SPHNeighbor
struct	SPHRangeData
struct	EfData
struct	DynamicStepSolverTaskData
struct	ParticleSystemIDLoopForModifier

Macros
#define	ZERO_F43
#define	COLLISION_MIN_RADIUS   0.001f
#define	COLLISION_MIN_DISTANCE   0.0001f
#define	COLLISION_ZERO   0.00001f
#define	COLLISION_INIT_STEP   0.00008f

Typedefs
typedef struct EfData	EfData
typedef float(*	NRDistanceFunc) (float *p, float radius, ParticleCollisionElement *pce, float *nor)
typedef struct DynamicStepSolverTaskData	DynamicStepSolverTaskData
typedef struct ParticleSystemIDLoopForModifier	ParticleSystemIDLoopForModifier

Functions
static int	particles_are_dynamic (ParticleSystem *psys)
float	psys_get_current_display_percentage (ParticleSystem *psys, const bool use_render_params)
static int	tot_particles (ParticleSystem *psys, PTCacheID *pid)
void	psys_reset (ParticleSystem *psys, int mode)
void	psys_unique_name (Object *object, ParticleSystem *psys, const char *defname)
static void	realloc_particles (ParticleSimulationData *sim, int new_totpart)
int	psys_get_child_number (Scene *scene, ParticleSystem *psys, const bool use_render_params)
int	psys_get_tot_child (Scene *scene, ParticleSystem *psys, const bool use_render_params)
void	psys_calc_dmcache (Object *ob, Mesh *mesh_final, Mesh *mesh_original, ParticleSystem *psys)
void	psys_thread_context_init (ParticleThreadContext *ctx, ParticleSimulationData *sim)
void	psys_tasks_create (ParticleThreadContext *ctx, int startpart, int endpart, ParticleTask **r_tasks, int *r_numtasks)
void	psys_tasks_free (ParticleTask *tasks, int numtasks)
void	psys_thread_context_free (ParticleThreadContext *ctx)
static void	init_particle_texture (ParticleSimulationData *sim, ParticleData *pa, int p)
void	init_particle (ParticleSimulationData *sim, ParticleData *pa)
static void	initialize_all_particles (ParticleSimulationData *sim)
static void	free_unexisting_particles (ParticleSimulationData *sim)
static void	get_angular_velocity_vector (short avemode, ParticleKey *state, float vec[3])
void	psys_get_birth_coords (ParticleSimulationData *sim, ParticleData *pa, ParticleKey *state, float dtime, float cfra)
static void	evaluate_emitter_anim (struct Depsgraph *depsgraph, Scene *scene, Object *ob, float cfra)
void	reset_particle (ParticleSimulationData *sim, ParticleData *pa, float dtime, float cfra)
static void	reset_all_particles (ParticleSimulationData *sim, float dtime, float cfra, int from)
ParticleSystem *	psys_get_target_system (Object *ob, ParticleTarget *pt)
void	psys_count_keyed_targets (ParticleSimulationData *sim)
static void	set_keyed_keys (ParticleSimulationData *sim)
void	psys_make_temp_pointcache (Object *ob, ParticleSystem *psys)
static void	psys_clear_temp_pointcache (ParticleSystem *psys)
void	psys_get_pointcache_start_end (Scene *scene, ParticleSystem *psys, int *sfra, int *efra)
static void	psys_update_particle_bvhtree (ParticleSystem *psys, float cfra)
void	psys_update_particle_tree (ParticleSystem *psys, float cfra)
static void	psys_update_effectors (ParticleSimulationData *sim)
static void	integrate_particle (ParticleSettings *part, ParticleData *pa, float dtime, float *external_acceleration, void(*force_func)(void *forcedata, ParticleKey *state, float *force, float *impulse), void *forcedata)
static void	basic_force_cb (void *efdata_v, ParticleKey *state, float *force, float *impulse)
static void	basic_integrate (ParticleSimulationData *sim, int p, float dfra, float cfra)
static void	basic_rotate (ParticleSettings *part, ParticleData *pa, float dfra, float timestep)
static float	nr_signed_distance_to_plane (float *p, float radius, ParticleCollisionElement *pce, float *nor)
static float	nr_distance_to_edge (float *p, float radius, ParticleCollisionElement *pce, float *UNUSED(nor))
static float	nr_distance_to_vert (float *p, float radius, ParticleCollisionElement *pce, float *UNUSED(nor))
static void	collision_interpolate_element (ParticleCollisionElement *pce, float t, float fac, ParticleCollision *col)
static void	collision_point_velocity (ParticleCollisionElement *pce)
static float	collision_point_distance_with_normal (float p[3], ParticleCollisionElement *pce, float fac, ParticleCollision *col, float *nor)
static void	collision_point_on_surface (const float p[3], ParticleCollisionElement *pce, float fac, ParticleCollision *col, float *co)
static float	collision_newton_rhapson (ParticleCollision *col, float radius, ParticleCollisionElement *pce, NRDistanceFunc distance_func)
static int	collision_sphere_to_tri (ParticleCollision *col, float radius, ParticleCollisionElement *pce, float *t)
static int	collision_sphere_to_edges (ParticleCollision *col, float radius, ParticleCollisionElement *pce, float *t)
static int	collision_sphere_to_verts (ParticleCollision *col, float radius, ParticleCollisionElement *pce, float *t)
void	BKE_psys_collision_neartest_cb (void *userdata, int index, const BVHTreeRay *ray, BVHTreeRayHit *hit)
static int	collision_detect (ParticleData *pa, ParticleCollision *col, BVHTreeRayHit *hit, ListBase *colliders)
static int	collision_response (ParticleSimulationData *sim, ParticleData *pa, ParticleCollision *col, BVHTreeRayHit *hit, int kill, int dynamic_rotation)
static void	collision_fail (ParticleData *pa, ParticleCollision *col)
static void	collision_check (ParticleSimulationData *sim, int p, float dfra, float cfra)
static void	psys_update_path_cache (ParticleSimulationData *sim, float cfra, const bool use_render_params)
static bool	psys_hair_use_simulation (ParticleData *pa, float max_length)
static MDeformVert *	hair_set_pinning (MDeformVert *dvert, float weight)
static void	hair_create_input_mesh (ParticleSimulationData *sim, int totpoint, int totedge, Mesh **r_mesh, ClothHairData **r_hairdata)
static void	do_hair_dynamics (ParticleSimulationData *sim)
static void	hair_step (ParticleSimulationData *sim, float cfra, const bool use_render_params)
static void	save_hair (ParticleSimulationData *sim, float UNUSED(cfra))
static void	update_courant_num (ParticleSimulationData *sim, ParticleData *pa, float dtime, SPHData *sphdata, SpinLock *spin)
static float	get_base_time_step (ParticleSettings *part)
static void	update_timestep (ParticleSystem *psys, ParticleSimulationData *sim)
static float	sync_timestep (ParticleSystem *psys, float t_frac)
static void	dynamics_step_sphdata_reduce (const void *__restrict UNUSED(userdata), void *__restrict join_v, void *__restrict chunk_v)
static void	dynamics_step_sph_ddr_task_cb_ex (void *__restrict userdata, const int p, const TaskParallelTLS *__restrict tls)
static void	dynamics_step_sph_classical_basic_integrate_task_cb_ex (void *__restrict userdata, const int p, const TaskParallelTLS *__restrict UNUSED(tls))
static void	dynamics_step_sph_classical_calc_density_task_cb_ex (void *__restrict userdata, const int p, const TaskParallelTLS *__restrict tls)
static void	dynamics_step_sph_classical_integrate_task_cb_ex (void *__restrict userdata, const int p, const TaskParallelTLS *__restrict tls)
static void	dynamics_step (ParticleSimulationData *sim, float cfra)
static void	update_children (ParticleSimulationData *sim, const bool use_render_params)
static void	cached_step (ParticleSimulationData *sim, float cfra, const bool use_render_params)
static bool	particles_has_flip (short parttype)
static bool	particles_has_tracer (short parttype)
static bool	particles_has_spray (short parttype)
static bool	particles_has_bubble (short parttype)
static bool	particles_has_foam (short parttype)
static void	particles_fluid_step (ParticleSimulationData *sim, int cfra, const bool use_render_params)
static int	emit_particles (ParticleSimulationData *sim, PTCacheID *pid, float UNUSED(cfra))
static void	system_step (ParticleSimulationData *sim, float cfra, const bool use_render_params)
void	psys_changed_type (Object *ob, ParticleSystem *psys)
void	psys_check_boid_data (ParticleSystem *psys)
void	BKE_particlesettings_fluid_default_settings (ParticleSettings *part)
static void	psys_prepare_physics (ParticleSimulationData *sim)
static int	hair_needs_recalc (ParticleSystem *psys)
static ParticleSettings *	particle_settings_localize (ParticleSettings *particle_settings)
static void	particle_settings_free_local (ParticleSettings *particle_settings)
void	particle_system_update (struct Depsgraph *depsgraph, Scene *scene, Object *ob, ParticleSystem *psys, const bool use_render_params)
static void	particlesystem_modifiersForeachIDLink (void *user_data, Object *UNUSED(object), ID **id_pointer, int cb_flag)
void	BKE_particlesystem_id_loop (ParticleSystem *psys, ParticleSystemIDFunc func, void *userdata)
void	BKE_particlesystem_reset_all (struct Object *object)
void	BKE_particle_settings_eval_reset (struct Depsgraph *depsgraph, ParticleSettings *particle_settings)
void	BKE_particle_system_eval_init (struct Depsgraph *depsgraph, Object *object)

Variables
static ThreadRWMutex	psys_bvhtree_rwlock = BLI_RWLOCK_INITIALIZER
static const float	MIN_TIMESTEP = 1.0f / 101.0f
static const float	TIMESTEP_EXPANSION_FACTOR = 0.1f
static const float	TIMESTEP_EXPANSION_TOLERANCE = 1.5f

SPH fluid physics
In theory, there could be unlimited implementation of SPH simulators This code uses in some parts adapted algorithms from the pseudo code as outlined in the Research paper: Titled: Particle-based Viscoelastic Fluid Simulation. Authors: Simon Clavet, Philippe Beaudoin and Pierre Poulin Website: http://www.iro.umontreal.ca/labs/infographie/papers/Clavet-2005-PVFS/ Presented at Siggraph, (2005)
#define	PSYS_FLUID_SPRINGS_INITIAL_SIZE   256
#define	SPH_NEIGHBORS   512
typedef struct SPHNeighbor	SPHNeighbor
typedef struct SPHRangeData	SPHRangeData
static ParticleSpring *	sph_spring_add (ParticleSystem *psys, ParticleSpring *spring)
static void	sph_spring_delete (ParticleSystem *psys, int j)
static void	sph_springs_modify (ParticleSystem *psys, float dtime)
static EdgeHash *	sph_springhash_build (ParticleSystem *psys)
static void	sph_evaluate_func (BVHTree *tree, ParticleSystem **psys, const float co[3], SPHRangeData *pfr, float interaction_radius, BVHTree_RangeQuery callback)
static void	sph_density_accum_cb (void *userdata, int index, const float co[3], float squared_dist)
static void	sph_particle_courant (SPHData *sphdata, SPHRangeData *pfr)
static void	sph_force_cb (void *sphdata_v, ParticleKey *state, float *force, float *UNUSED(impulse))
static void	sphclassical_density_accum_cb (void *userdata, int index, const float co[3], float UNUSED(squared_dist))
static void	sphclassical_neighbor_accum_cb (void *userdata, int index, const float co[3], float UNUSED(squared_dist))
static void	sphclassical_force_cb (void *sphdata_v, ParticleKey *state, float *force, float *UNUSED(impulse))
static void	sphclassical_calc_dens (ParticleData *pa, float UNUSED(dfra), SPHData *sphdata)
void	psys_sph_init (ParticleSimulationData *sim, SPHData *sphdata)
static void	psys_sph_flush_springs (SPHData *sphdata)
void	psys_sph_finalize (SPHData *sphdata)
void	psys_sph_density (BVHTree *tree, SPHData *sphdata, float co[3], float vars[2])
static void	sph_integrate (ParticleSimulationData *sim, ParticleData *pa, float dfra, SPHData *sphdata)

Macro Definition Documentation

COLLISION_INIT_STEP

#define COLLISION_INIT_STEP   0.00008f

Definition at line 2398 of file particle_system.c.

COLLISION_MIN_DISTANCE

#define COLLISION_MIN_DISTANCE   0.0001f

Definition at line 2396 of file particle_system.c.

COLLISION_MIN_RADIUS

#define COLLISION_MIN_RADIUS   0.001f

Definition at line 2395 of file particle_system.c.

COLLISION_ZERO

#define COLLISION_ZERO   0.00001f

Definition at line 2397 of file particle_system.c.

PSYS_FLUID_SPRINGS_INITIAL_SIZE

#define PSYS_FLUID_SPRINGS_INITIAL_SIZE   256

Definition at line 1572 of file particle_system.c.

SPH_NEIGHBORS

#define SPH_NEIGHBORS   512

Definition at line 1675 of file particle_system.c.

ZERO_F43

#define ZERO_F43

Value:

  { \
    {0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}, \
    { \
      0.0f, 0.0f, 0.0f \
    } \
  }

Typedef Documentation

DynamicStepSolverTaskData

typedef struct DynamicStepSolverTaskData DynamicStepSolverTaskData

EfData

typedef struct EfData EfData

NRDistanceFunc

typedef float(* NRDistanceFunc) (float *p, float radius, ParticleCollisionElement *pce, float *nor)

Definition at line 2399 of file particle_system.c.

ParticleSystemIDLoopForModifier

typedef struct ParticleSystemIDLoopForModifier ParticleSystemIDLoopForModifier

SPHNeighbor

typedef struct SPHNeighbor SPHNeighbor

SPHRangeData

typedef struct SPHRangeData SPHRangeData

Function Documentation

basic_force_cb()

static void basic_force_cb ( void *  efdata_v, ParticleKey *  state, float *  force, float *  impulse  )

static

Definition at line 2239 of file particle_system.c.

References EffectedPoint::ave, ParticleKey::ave, BKE_effectors_apply(), BLI_rng_get_float(), ParticleSettings::brownfac, ParticleSimulationData::colliders, copy_v3_v3(), ParticleSettings::dragfac, EFF_WEIGHT_DO_HAIR, ParticleSettings::effector_weights, ParticleSystem::effectors, ParticleTexture::field, EffectorWeights::flag, ParticleSettings::flag, len_v3(), madd_v3_v3fl(), mul_v3_fl(), NULL, EfData::pa, ParticleSystem::part, PART_HAIR, PART_ROT_DYN, pd_point_from_particle(), ParticleSimulationData::psys, EfData::ptex, ParticleSimulationData::rng, EfData::sim, ParticleData::size, ParticleData::state, state, and ParticleSettings::type.

Referenced by basic_integrate().

basic_integrate()

static void basic_integrate ( ParticleSimulationData *  sim, int  p, float  dfra, float  cfra  )

static

Definition at line 2280 of file particle_system.c.

References ParticleKey::ave, basic_force_cb(), CLAMP, ParticleKey::co, copy_v3_v3(), ParticleTexture::damp, ParticleSettings::dampfac, ParticleSimulationData::depsgraph, do_guides(), EFF_WEIGHT_DO_HAIR, ParticleSettings::effector_weights, ParticleSystem::effectors, EffectorWeights::flag, EffectorWeights::global_gravity, ParticleTexture::gravity, PhysicsSettings::gravity, integrate_particle(), ParticleData::lifetime, madd_v3_v3fl(), mul_v3_fl(), NULL, EfData::pa, PAMAP_PHYSICS, ParticleSystem::part, PART_HAIR, ParticleSystem::particles, Scene::physics_settings, ParticleData::prev_state, ParticleSimulationData::psys, psys_get_texture(), psys_get_timestep(), psys_uses_gravity(), EfData::ptex, ParticleSimulationData::scene, EfData::sim, ParticleData::state, sub_v3_v3v3(), time, ParticleKey::time, ParticleData::time, ParticleSettings::type, ParticleKey::vel, and zero_v3().

Referenced by dynamics_step(), dynamics_step_sph_classical_basic_integrate_task_cb_ex(), and dynamics_step_sph_ddr_task_cb_ex().

basic_rotate()

static void basic_rotate ( ParticleSettings *  part, ParticleData *  pa, float  dfra, float  timestep  )

static

Definition at line 2335 of file particle_system.c.

References angle(), ParticleKey::ave, ParticleSettings::avefac, ParticleSettings::avemode, axis_angle_to_quat(), cross_v3_v3v3(), dot_v3v3(), ELEM, ParticleSettings::flag, get_angular_velocity_vector(), len_v3(), mul_qt_qtqt(), mul_v3_fl(), normalize_qt(), normalize_v3(), PART_AVE_HORIZONTAL, PART_AVE_VELOCITY, PART_AVE_VERTICAL, PART_ROT_DYN, PART_ROTATIONS, ParticleData::prev_state, ParticleKey::rot, saacos(), ParticleData::state, unit_qt(), ParticleKey::vel, and zero_v3().

Referenced by dynamics_step(), dynamics_step_sph_classical_integrate_task_cb_ex(), and dynamics_step_sph_ddr_task_cb_ex().

BKE_particle_settings_eval_reset()

void BKE_particle_settings_eval_reset	(	struct Depsgraph *	depsgraph,
		ParticleSettings *	particle_settings
	)

Definition at line 5054 of file particle_system.c.

References DEG_debug_print_eval(), depsgraph, ParticleSettings::id, ID_RECALC_PSYS_RESET, ID::name, and ID::recalc.

BKE_particle_system_eval_init()

void BKE_particle_system_eval_init	(	struct Depsgraph *	depsgraph,
		Object *	object
	)

Definition at line 5061 of file particle_system.c.

References DEG_debug_print_eval(), depsgraph, ListBase::first, Object::id, ID_RECALC_PSYS_ALL, ID::name, NULL, and Object::particlesystem.

Referenced by blender::deg::DepsgraphNodeBuilder::build_particle_systems().

BKE_particlesettings_fluid_default_settings()

void BKE_particlesettings_fluid_default_settings

(

ParticleSettings *

part

)

Definition at line 4702 of file particle_system.c.

References SPHFluidSettings::buoyancy, SPHFluidSettings::flag, ParticleSettings::fluid, SPHFluidSettings::plasticity_constant, SPHFluidSettings::radius, SPHFluidSettings::rest_density, SPHFluidSettings::rest_length, SPH_FAC_DENSITY, SPH_FAC_RADIUS, SPH_FAC_REPULSION, SPH_FAC_REST_LENGTH, SPH_FAC_VISCOSITY, SPHFluidSettings::spring_k, SPHFluidSettings::stiffness_k, SPHFluidSettings::stiffness_knear, SPHFluidSettings::viscosity_beta, SPHFluidSettings::viscosity_omega, and SPHFluidSettings::yield_ratio.

BKE_particlesystem_id_loop()

void BKE_particlesystem_id_loop	(	ParticleSystem *	psys,
		ParticleSystemIDFunc	func,
		void *	userdata
	)

Definition at line 5006 of file particle_system.c.

References BKE_modifier_get_info(), ParticleData::boid, ParticleSystem::clmd, data, ListBase::first, ModifierTypeInfo::foreachIDLink, BoidParticle::ground, IDWALK_CB_NEVER_NULL, IDWALK_CB_NOP, IDWALK_CB_USER, ClothModifierData::modifier, ParticleTarget::next, NULL, ParticleTarget::ob, ParticleSystem::parent, ParticleSystem::part, PART_PHYS_BOIDS, ParticleSystem::particles, particlesystem_modifiersForeachIDLink(), ParticleSettings::phystype, ParticleSystem::target_ob, ParticleSystem::targets, and ModifierData::type.

Referenced by object_foreach_id().

BKE_particlesystem_reset_all()

void BKE_particlesystem_reset_all

(

struct Object *

object

)

Definition at line 5040 of file particle_system.c.

References eModifierType_ParticleSystem, ListBase::first, ID_RECALC_PSYS_RESET, Object::modifiers, NULL, ParticleSystemModifierData::psys, and ParticleSystem::recalc.

Referenced by ED_object_editmode_exit_ex(), and SCULPT_dynamic_topology_disable_ex().

BKE_psys_collision_neartest_cb()

void BKE_psys_collision_neartest_cb	(	void *	userdata,
		int	index,
		const BVHTreeRay *	ray,
		BVHTreeRayHit *	hit
	)

Definition at line 2788 of file particle_system.c.

References BMVert::co, col, collision_point_velocity(), collision_sphere_to_edges(), collision_sphere_to_tri(), collision_sphere_to_verts(), BVHTreeRayHit::dist, ParticleCollisionElement::index, BVHTreeRayHit::index, ParticleCollisionElement::inside, BVHTreeRay::radius, t, ParticleCollisionElement::tot, MVertTri::tri, ParticleCollisionElement::v, v, ParticleCollisionElement::x, and x.

Referenced by collision_detect().

cached_step()

static void cached_step ( ParticleSimulationData *  sim, float  cfra, const bool  use_render_params  )

static

Definition at line 4102 of file particle_system.c.

References ParticleData::alive, BKE_lattice_deform_data_destroy(), ParticleData::dietime, ParticleData::flag, ParticleSettings::flag, PointCache::flag, ParticleSystem::lattice_deform_data, LOOP_PARTICLES, NULL, PAMAP_SIZE, PARS_ALIVE, PARS_DEAD, PARS_NO_DISP, PARS_UNBORN, ParticleSystem::part, PART_UNBORN, PARTICLE_P, ParticleSystem::pointcache, ParticleSimulationData::psys, psys_create_lattice_deform_data(), psys_frand(), psys_get_current_display_percentage(), psys_get_texture(), psys_update_effectors(), PTCACHE_EXTERNAL, ParticleSettings::randsize, reset_particle(), ParticleTexture::size, ParticleData::size, ParticleSettings::size, and ParticleData::time.

Referenced by system_step().

collision_check()

static void collision_check ( ParticleSimulationData *  sim, int  p, float  dfra, float  cfra  )

static

Definition at line 3118 of file particle_system.c.

References ParticleData::boid, BOID_ALLOW_LAND, ParticleSettings::boids, ParticleSystem::cfra, ParticleKey::co, col, ParticleSimulationData::colliders, collision_detect(), collision_fail(), COLLISION_MIN_RADIUS, collision_response(), copy_v3_v3(), ParticleSettings::flag, BoidParticle::ground, if(), mul_v3_fl(), BoidSettings::options, ParticleSystem::part, PART_DIE_ON_COL, PART_PHYS_BOIDS, PART_ROT_DYN, PART_SIZE_DEFL, PARTICLE_COLLISION_MAX_COLLISIONS, ParticleSystem::particles, ParticleSettings::phystype, ParticleData::prev_state, ParticleSimulationData::psys, psys_get_timestep(), ParticleData::size, ParticleData::state, sub_v3_v3v3(), and ParticleKey::vel.

Referenced by dynamics_step(), dynamics_step_sph_classical_integrate_task_cb_ex(), and dynamics_step_sph_ddr_task_cb_ex().

collision_detect()

static int collision_detect ( ParticleData *  pa, ParticleCollision *  col, BVHTreeRayHit *  hit, ListBase *  colliders  )

static

Definition at line 2828 of file particle_system.c.

References BKE_psys_collision_neartest_cb(), BLI_bvhtree_ray_cast_ex(), BLI_listbase_is_empty(), BVH_RAYCAST_DEFAULT, BVH_RAYCAST_WATERTIGHT, col, ColliderCache::collmd, BVHTreeRayHit::dist, ListBase::first, BVHTreeRayHit::index, ColliderCache::next, normalize_v3(), ColliderCache::ob, sub_v3_v3v3(), ParticleData::time, CollisionModifierData::time_x, and CollisionModifierData::time_xnew.

Referenced by collision_check().

collision_fail()

static void collision_fail ( ParticleData *  pa, ParticleCollision *  col  )

static

Definition at line 3098 of file particle_system.c.

References ParticleKey::co, col, collision_point_on_surface(), copy_v3_v3(), mul_v3_fl(), ParticleData::state, and ParticleKey::vel.

Referenced by collision_check().

collision_interpolate_element()

static void collision_interpolate_element ( ParticleCollisionElement *  pce, float  t, float  fac, ParticleCollision *  col  )

static

Definition at line 2454 of file particle_system.c.

References col, madd_v3_v3v3fl(), mul(), t, ParticleCollisionElement::tot, ParticleCollisionElement::v, ParticleCollisionElement::x, ParticleCollisionElement::x0, ParticleCollisionElement::x1, and ParticleCollisionElement::x2.

Referenced by collision_newton_rhapson(), collision_point_distance_with_normal(), and collision_point_on_surface().

collision_newton_rhapson()

static float collision_newton_rhapson ( ParticleCollision *  col, float  radius, ParticleCollisionElement *  pce, NRDistanceFunc  distance_func  )

static

Definition at line 2566 of file particle_system.c.

References CLAMP, col, COLLISION_INIT_STEP, collision_interpolate_element(), COLLISION_ZERO, copy_v3_v3(), ParticleCollisionElement::inside, interp_v3_v3v3(), ParticleCollisionElement::inv_nor, ParticleCollisionElement::nor, nr_signed_distance_to_plane(), and ParticleCollisionElement::p.

Referenced by collision_sphere_to_edges(), collision_sphere_to_tri(), and collision_sphere_to_verts().

collision_point_distance_with_normal()

static float collision_point_distance_with_normal ( float  p[3], ParticleCollisionElement *  pce, float  fac, ParticleCollision *  col, float *  nor  )

static

Definition at line 2493 of file particle_system.c.

References col, collision_interpolate_element(), dot_v3v3(), e, madd_v3_v3v3fl(), nor, normalize_v3(), nr_signed_distance_to_plane(), sub_v3_v3v3(), ParticleCollisionElement::tot, ParticleCollisionElement::x0, and ParticleCollisionElement::x1.

Referenced by collision_response().

collision_point_on_surface()

static void collision_point_on_surface ( const float  p[3], ParticleCollisionElement *  pce, float  fac, ParticleCollision *  col, float *  co  )

static

Definition at line 2519 of file particle_system.c.

References col, collision_interpolate_element(), cross_v3_v3v3(), dot_v3v3(), e, ParticleCollisionElement::inv_nor, madd_v3_v3fl(), madd_v3_v3v3fl(), negate_v3(), nor, normalize_v3(), sub_v3_v3v3(), ParticleCollisionElement::tot, ParticleCollisionElement::uv, ParticleCollisionElement::x0, ParticleCollisionElement::x1, and ParticleCollisionElement::x2.

Referenced by collision_fail().

collision_point_velocity()

static void collision_point_velocity ( ParticleCollisionElement *  pce )

static

Definition at line 2477 of file particle_system.c.

References copy_v3_v3(), madd_v3_v3fl(), sub_v3_v3v3(), ParticleCollisionElement::tot, ParticleCollisionElement::uv, ParticleCollisionElement::v, v, and ParticleCollisionElement::vel.

Referenced by BKE_psys_collision_neartest_cb().

collision_response()

static int collision_response ( ParticleSimulationData *  sim, ParticleData *  pa, ParticleCollision *  col, BVHTreeRayHit *  hit, int  kill, int  dynamic_rotation  )

static

Definition at line 2893 of file particle_system.c.

References add_v3_v3(), add_v3_v3v3(), ParticleData::alive, ParticleKey::ave, BLI_rng_get_float(), ParticleData::boid, CLAMP, ParticleKey::co, col, COLLISION_MIN_DISTANCE, collision_point_distance_with_normal(), copy_v3_v3(), cross_v3_v3v3(), BoidParticle::data, ParticleData::dietime, BVHTreeRayHit::dist, distance(), dot(), dot_v3v3(), eBoidMode_OnLand, PartDeflect::flag, interp_qt_qtqt(), interp_v3_v3v3(), madd_v3_v3fl(), madd_v3_v3v3fl(), MAX2, BoidData::mode, mul_v3_fl(), mul_v3_v3fl(), negate_v3_v3(), ParticleCollisionElement::nor, nor, PARS_DYING, PartDeflect::pdef_damp, PartDeflect::pdef_frict, PartDeflect::pdef_perm, PartDeflect::pdef_rdamp, PartDeflect::pdef_rfrict, PartDeflect::pdef_stickness, PDEFLE_KILL_PART, ParticleData::prev_state, ParticleSimulationData::rng, ParticleKey::rot, ParticleData::size, ParticleData::state, sub_v3_v3v3(), ParticleCollisionElement::vel, ParticleKey::vel, and x.

Referenced by collision_check().

collision_sphere_to_edges()

static int collision_sphere_to_edges ( ParticleCollision *  col, float  radius, ParticleCollisionElement *  pce, float *  t  )

static

Definition at line 2707 of file particle_system.c.

References col, collision_newton_rhapson(), dot_v3v3(), e, ParticleCollisionElement::inside, madd_v3_v3v3fl(), normalize_v3(), nr_distance_to_edge(), NULL, ParticleCollisionElement::p, result, sub_v3_v3v3(), t, ParticleCollisionElement::tot, ParticleCollisionElement::v, ParticleCollisionElement::x, ParticleCollisionElement::x0, and ParticleCollisionElement::x1.

Referenced by BKE_psys_collision_neartest_cb().

collision_sphere_to_tri()

static int collision_sphere_to_tri ( ParticleCollision *  col, float  radius, ParticleCollisionElement *  pce, float *  t  )

static

Definition at line 2661 of file particle_system.c.

References col, collision_newton_rhapson(), dot_v3v3(), ParticleCollisionElement::inside, ParticleCollisionElement::inv_nor, nr_signed_distance_to_plane(), ParticleCollisionElement::p, result, sub_v3_v3v3(), t, v, ParticleCollisionElement::x0, ParticleCollisionElement::x1, and ParticleCollisionElement::x2.

Referenced by BKE_psys_collision_neartest_cb().

collision_sphere_to_verts()

static int collision_sphere_to_verts ( ParticleCollision *  col, float  radius, ParticleCollisionElement *  pce, float *  t  )

static

Definition at line 2754 of file particle_system.c.

References col, collision_newton_rhapson(), ParticleCollisionElement::inside, normalize_v3(), nr_distance_to_vert(), NULL, ParticleCollisionElement::p, result, sub_v3_v3v3(), t, ParticleCollisionElement::tot, ParticleCollisionElement::v, ParticleCollisionElement::x, and ParticleCollisionElement::x0.

Referenced by BKE_psys_collision_neartest_cb().

do_hair_dynamics()

static void do_hair_dynamics ( ParticleSimulationData *  sim )

static

Definition at line 3449 of file particle_system.c.

References BKE_id_copy_ex(), BKE_id_free(), BKE_mesh_vert_coords_alloc(), BKE_mesh_vert_coords_apply(), BKE_modifier_new(), ParticleSystem::clmd, CLOTH_COLLSETTINGS_FLAG_SELF, CLOTH_SIMSETTINGS_FLAG_RESIST_SPRING_COMPRESS, clothModifier_do(), ClothModifierData::coll_parms, ParticleSimulationData::depsgraph, ClothSimSettings::effector_weights, ParticleSettings::effector_weights, eModifierType_Cloth, ParticleData::flag, ClothSimSettings::flags, ClothCollSettings::flags, float(), ClothSimSettings::goalspring, hair_create_input_mesh(), ParticleSystem::hair_in_mesh, ParticleSystem::hair_out_mesh, ClothModifierData::hairdata, Mesh::id, LIB_ID_COPY_LOCALIZE, LOOP_PARTICLES, MEM_freeN, mesh, NULL, ParticleSimulationData::ob, PARS_UNEXIST, ParticleSystem::part, PARTICLE_P, ClothModifierData::point_cache, ParticleSystem::pointcache, ParticleSimulationData::psys, ParticleSimulationData::scene, ClothModifierData::sim_parms, Mesh::totedge, ParticleData::totkey, and Mesh::totvert.

Referenced by hair_step().

dynamics_step()

static void dynamics_step ( ParticleSimulationData *  sim, float  cfra  )

static

Definition at line 3823 of file particle_system.c.

References ParticleData::alive, basic_integrate(), basic_rotate(), BKE_collider_cache_create(), BKE_collider_cache_free(), BLI_findlink(), BLI_parallel_range_settings_defaults(), BLI_rng_free(), BLI_rng_new_srandom(), BLI_spin_end(), BLI_spin_init(), BLI_task_parallel_range(), boid_body(), boid_brain(), boids_precalc_rules(), BoidBrainData::cfra, ParticleSystem::cfra, ParticleSimulationData::colliders, collision_check(), ParticleSettings::collision_group, copy_particle_key(), ParticleSimulationData::depsgraph, BoidBrainData::dfra, ParticleData::dietime, dynamics_step_sph_classical_basic_integrate_task_cb_ex(), dynamics_step_sph_classical_calc_density_task_cb_ex(), dynamics_step_sph_classical_integrate_task_cb_ex(), dynamics_step_sph_ddr_task_cb_ex(), dynamics_step_sphdata_reduce(), ELEM, ListBase::first, ParticleData::flag, ParticleSettings::flag, ParticleSettings::fluid, TaskParallelSettings::func_reduce, BoidBrainData::goal_ob, LOOP_DYNAMIC_PARTICLES, LOOP_EXISTING_PARTICLES, LOOP_SHOWN_PARTICLES, ParticleTarget::next, NULL, ParticleSimulationData::ob, ParticleTarget::ob, PAMAP_SIZE, PARS_ALIVE, PARS_DEAD, PARS_DYING, PARS_NO_DISP, PARS_UNBORN, PARS_UNEXIST, BoidBrainData::part, ParticleSystem::part, PART_HAIR, PART_PHYS_BOIDS, PART_PHYS_FLUID, PART_PHYS_NEWTON, PART_PHYS_NO, PART_UNBORN, PARTICLE_P, Object::particlesystem, ParticleSettings::phystype, ParticleSystem::pointcache, ParticleData::prev_state, ParticleSimulationData::psys, ParticleTarget::psys, psys_frand(), psys_get_target_system(), psys_get_texture(), psys_get_timestep(), psys_sph_finalize(), psys_sph_init(), psys_update_effectors(), psys_update_particle_bvhtree(), psys_update_particle_tree(), ParticleSettings::randsize, reset_particle(), BoidBrainData::rng, ParticleSimulationData::rng, ParticleSystem::seed, BoidBrainData::sim, DynamicStepSolverTaskData::sim, ParticleTexture::size, ParticleData::size, ParticleSettings::size, SPHFluidSettings::solver, SPH_SOLVER_DDR, sph_springs_modify(), DynamicStepSolverTaskData::spin, ParticleData::state, PointCache::step, ParticleSystem::targets, ParticleKey::time, ParticleData::time, BoidBrainData::timestep, ParticleSystem::totpart, ParticleSettings::type, TaskParallelSettings::use_threading, TaskParallelSettings::userdata_chunk, and TaskParallelSettings::userdata_chunk_size.

Referenced by system_step().

dynamics_step_sph_classical_basic_integrate_task_cb_ex()

static void dynamics_step_sph_classical_basic_integrate_task_cb_ex ( void *__restrict  userdata, const int  p, const TaskParallelTLS *__restrict   UNUSEDtls  )

static

Definition at line 3755 of file particle_system.c.

References basic_integrate(), data, ParticleSystem::particles, ParticleSimulationData::psys, ParticleData::state, and ParticleKey::time.

Referenced by dynamics_step().

dynamics_step_sph_classical_calc_density_task_cb_ex()

static void dynamics_step_sph_classical_calc_density_task_cb_ex ( void *__restrict  userdata, const int  p, const TaskParallelTLS *__restrict  tls  )

static

Definition at line 3771 of file particle_system.c.

References data, ParticleSystem::particles, ParticleSimulationData::psys, sphclassical_calc_dens(), ParticleData::state, and ParticleKey::time.

Referenced by dynamics_step().

dynamics_step_sph_classical_integrate_task_cb_ex()

static void dynamics_step_sph_classical_integrate_task_cb_ex ( void *__restrict  userdata, const int  p, const TaskParallelTLS *__restrict  tls  )

static

Definition at line 3789 of file particle_system.c.

References basic_rotate(), ParticleSimulationData::colliders, collision_check(), data, ParticleSystem::part, PART_TIME_AUTOSF, ParticleSystem::particles, ParticleSimulationData::psys, sph_integrate(), ParticleData::state, ParticleKey::time, ParticleSettings::time_flag, and update_courant_num().

Referenced by dynamics_step().

dynamics_step_sph_ddr_task_cb_ex()

static void dynamics_step_sph_ddr_task_cb_ex ( void *__restrict  userdata, const int  p, const TaskParallelTLS *__restrict  tls  )

static

Definition at line 3719 of file particle_system.c.

References basic_integrate(), basic_rotate(), ParticleSimulationData::colliders, collision_check(), data, ParticleSystem::part, PART_TIME_AUTOSF, ParticleSystem::particles, ParticleSimulationData::psys, sph_integrate(), ParticleData::state, ParticleKey::time, ParticleSettings::time_flag, and update_courant_num().

Referenced by dynamics_step().

dynamics_step_sphdata_reduce()

static void dynamics_step_sphdata_reduce ( const void *__restrict   UNUSEDuserdata, void *__restrict  join_v, void *__restrict  chunk_v  )

static

Definition at line 3702 of file particle_system.c.

References BLI_buffer_append_array, BLI_buffer_at, BLI_buffer_field_free, BLI_Buffer::count, and SPHData::new_springs.

Referenced by dynamics_step().

emit_particles()

static int emit_particles ( ParticleSimulationData *  sim, PTCacheID *  pid, float   UNUSEDcfra  )

static

Definition at line 4447 of file particle_system.c.

References ParticleSimulationData::psys, realloc_particles(), tot_particles(), and ParticleSystem::totpart.

Referenced by particle_system_update(), and system_step().

evaluate_emitter_anim()

static void evaluate_emitter_anim ( struct Depsgraph *  depsgraph, Scene *  scene, Object *  ob, float  cfra  )

static

Definition at line 1063 of file particle_system.c.

References BKE_object_where_is_calc_time(), depsgraph, Object::parent, and scene.

Referenced by particle_system_update(), and reset_particle().

free_unexisting_particles()

static void free_unexisting_particles ( ParticleSimulationData *  sim )

static

Definition at line 640 of file particle_system.c.

References ParticleData::boid, LOOP_PARTICLES, MEM_callocN, MEM_freeN, NULL, PARS_UNEXIST, PARTICLE_P, ParticleSystem::particles, ParticleSimulationData::psys, ParticleSystem::totpart, and ParticleSystem::totunexist.

Referenced by particle_system_update(), and system_step().

get_angular_velocity_vector()

static void get_angular_velocity_vector ( short  avemode, ParticleKey *  state, float  vec[3]  )

static

Definition at line 696 of file particle_system.c.

References copy_v3_v3(), cross_v3_v3v3(), PART_AVE_GLOBAL_X, PART_AVE_GLOBAL_Y, PART_AVE_GLOBAL_Z, PART_AVE_HORIZONTAL, PART_AVE_VELOCITY, PART_AVE_VERTICAL, and state.

Referenced by basic_rotate(), and psys_get_birth_coords().

get_base_time_step()

static float get_base_time_step ( ParticleSettings *  part )

static

Definition at line 3642 of file particle_system.c.

References float(), and ParticleSettings::subframes.

Referenced by system_step(), and update_timestep().

hair_create_input_mesh()

static void hair_create_input_mesh ( ParticleSimulationData *  sim, int  totpoint, int  totedge, Mesh **  r_mesh, ClothHairData **  r_hairdata  )

static

Definition at line 3312 of file particle_system.c.

References add_v3_v3v3(), ParticleSettings::bending_random, ClothHairData::bending_stiffness, BKE_mesh_new_nomain(), BKE_mesh_update_customdata_pointers(), CD_CALLOC, CD_MDEFORMVERT, CLAMPIS, ParticleSystem::clmd, MVert::co, HairKey::co, copy_m3_m4(), copy_v3_v3(), CustomData_add_layer(), Mesh::dvert, ParticleData::flag, ParticleSettings::from, ParticleData::hair, ParticleData::hair_index, hair_set_pinning(), ClothModifierData::hairdata, len_v3v3(), length(), ClothHairData::loc, LOOP_PARTICLES, Mesh::medge, MEM_mallocN, mesh, ParticleSystemModifierData::mesh_final, mul_m4_m4m4(), mul_m4_v3(), Mesh::mvert, normalize_m4(), NULL, ParticleSimulationData::ob, Object::obmat, PARS_UNEXIST, ParticleSystem::part, PARTICLE_P, ParticleSimulationData::psmd, ParticleSimulationData::psys, psys_frand(), psys_hair_use_simulation(), psys_mat_hair_to_object(), ClothHairData::radius, ClothHairData::rot, ClothModifierData::sim_parms, ParticleSettings::size, sub_v3_v3(), ParticleData::totkey, Mesh::totvert, MEdge::v1, MEdge::v2, ClothSimSettings::vgroup_mass, and HairKey::weight.

Referenced by do_hair_dynamics().

hair_needs_recalc()

static int hair_needs_recalc ( ParticleSystem *  psys )

static

Definition at line 4745 of file particle_system.c.

References ParticleSystem::edit, PTCacheEdit::edited, ParticleSettings::flag, ParticleSystem::flag, ID_RECALC_PSYS_RESET, ParticleSystem::part, PART_HAIR_REGROW, PSYS_EDITED, PSYS_HAIR_DONE, and ParticleSystem::recalc.

Referenced by particle_system_update().

hair_set_pinning()

static MDeformVert* hair_set_pinning ( MDeformVert *  dvert, float  weight  )

static

Definition at line 3298 of file particle_system.c.

References MDeformVert::dw, MEM_callocN, MDeformVert::totweight, and MDeformWeight::weight.

Referenced by hair_create_input_mesh().

hair_step()

static void hair_step ( ParticleSimulationData *  sim, float  cfra, const bool  use_render_params  )

static

Definition at line 3520 of file particle_system.c.

References ParticleSystem::clmd, cloth_free_modifier(), do_hair_dynamics(), ParticleData::flag, ParticleSystem::flag, ID_RECALC_PSYS_RESET, LOOP_PARTICLES, ParticleSystemModifierData::mesh_final, ParticleSystemModifierData::mesh_original, ParticleSimulationData::ob, PARS_NO_DISP, ParticleSystem::part, PART_HAIR, PARTICLE_P, ParticleSystem::particles, ParticleSimulationData::psmd, ParticleSimulationData::psys, psys_calc_dmcache(), psys_frand(), psys_get_current_display_percentage(), PSYS_HAIR_DYNAMICS, PSYS_HAIR_UPDATED, psys_update_effectors(), psys_update_path_cache(), ParticleSettings::randsize, ParticleSystem::recalc, ParticleData::size, ParticleSettings::size, and ParticleSettings::type.

Referenced by motion_blur_deform_data_get(), and particle_system_update().

init_particle()

void init_particle	(	ParticleSimulationData *	sim,
		ParticleData *	pa
	)

Definition at line 601 of file particle_system.c.

References ParticleSettings::end, ParticleData::flag, float(), ParticleData::hair_index, PARS_UNEXIST, ParticleSystem::part, ParticleSystem::particles, ParticleSimulationData::psys, ParticleSettings::sta, ParticleData::time, and ParticleSystem::totpart.

Referenced by brush_add(), and initialize_all_particles().

init_particle_texture()

static void init_particle_texture ( ParticleSimulationData *  sim, ParticleData *  pa, int  p  )

static

Definition at line 576 of file particle_system.c.

References ParticleSettings::end, ParticleTexture::exist, ParticleData::flag, if(), PAMAP_INIT, PARS_UNEXIST, ParticleSystem::part, PART_EMITTER, PART_HAIR, ParticleSimulationData::psys, psys_frand(), psys_get_texture(), ParticleSettings::sta, ParticleTexture::time, ParticleData::time, and ParticleSettings::type.

Referenced by reset_particle().

initialize_all_particles()

static void initialize_all_particles ( ParticleSimulationData *  sim )

static

Definition at line 615 of file particle_system.c.

References ParticleSettings::distr, ELEM, ParticleSettings::from, init_particle(), LOOP_PARTICLES, PARS_UNEXIST, ParticleSystem::part, PART_DISTR_GRID, PART_FROM_CHILD, PART_FROM_VERT, PARTICLE_P, and ParticleSimulationData::psys.

Referenced by particle_system_update(), and system_step().

integrate_particle()

static void integrate_particle ( ParticleSettings *  part, ParticleData *  pa, float  dtime, float *  external_acceleration, void(*)(void *forcedata, ParticleKey *state, float *force, float *impulse)  force_func, void *  forcedata  )

static

Definition at line 1409 of file particle_system.c.

References add_v3_v3(), add_v3_v3v3(), ParticleKey::co, copy_particle_key(), copy_v3_v3(), ParticleSettings::flag, ParticleSettings::integrator, madd_v3_v3fl(), madd_v3_v3v3fl(), ParticleSettings::mass, mul_v3_fl(), mul_v3_v3fl(), PART_INT_EULER, PART_INT_MIDPOINT, PART_INT_RK4, PART_INT_VERLET, PART_SIZEMASS, ParticleData::prev_state, ParticleData::size, ParticleData::state, steps, sub_v3_v3v3(), ParticleKey::time, ParticleKey::vel, ZERO_F43, and zero_v3().

Referenced by basic_integrate(), and sph_integrate().

nr_distance_to_edge()

static float nr_distance_to_edge ( float *  p, float  radius, ParticleCollisionElement *  pce, float *  UNUSEDnor  )

static

Definition at line 2432 of file particle_system.c.

References Freestyle::c, cross_v3_v3v3(), fabsf, len_v3(), sub_v3_v3v3(), v1, v2, ParticleCollisionElement::x0, and ParticleCollisionElement::x1.

Referenced by collision_sphere_to_edges().

nr_distance_to_vert()

static float nr_distance_to_vert ( float *  p, float  radius, ParticleCollisionElement *  pce, float *  UNUSEDnor  )

static

Definition at line 2447 of file particle_system.c.

References len_v3v3(), and ParticleCollisionElement::x0.

Referenced by collision_sphere_to_verts().

nr_signed_distance_to_plane()

static float nr_signed_distance_to_plane ( float *  p, float  radius, ParticleCollisionElement *  pce, float *  nor  )

static

Definition at line 2400 of file particle_system.c.

References cross_v3_v3v3(), dot_v3v3(), ParticleCollisionElement::inv_nor, negate_v3(), nor, normalize_v3(), sub_v3_v3v3(), ParticleCollisionElement::x0, ParticleCollisionElement::x1, and ParticleCollisionElement::x2.

Referenced by collision_newton_rhapson(), collision_point_distance_with_normal(), and collision_sphere_to_tri().

particle_settings_free_local()

static void particle_settings_free_local ( ParticleSettings *  particle_settings )

static

Definition at line 4763 of file particle_system.c.

References BKE_libblock_free_data(), BKE_libblock_free_datablock(), BLI_assert, ParticleSettings::id, MEM_freeN, and ID::py_instance.

Referenced by particle_system_update().

particle_settings_localize()

static ParticleSettings* particle_settings_localize ( ParticleSettings *  particle_settings )

static

Definition at line 4756 of file particle_system.c.

References BKE_id_copy_ex(), ParticleSettings::id, LIB_ID_COPY_LOCALIZE, and NULL.

Referenced by particle_system_update().

particle_system_update()

void particle_system_update	(	struct Depsgraph *	depsgraph,
		Scene *	scene,
		Object *	ob,
		ParticleSystem *	psys,
		const bool	use_render_params
	)

Definition at line 4773 of file particle_system.c.

References ParticleSettings::adt, ADT_RECALC_ANIM, BKE_animsys_eval_context_construct(), BKE_animsys_evaluate_animdata(), BKE_mesh_tessface_ensure(), BKE_particle_batch_cache_dirty_tag(), BKE_PARTICLE_BATCH_DIRTY_ALL, ParticleSystem::cfra, DEG_get_ctime(), DEG_is_active(), ParticleSimulationData::depsgraph, depsgraph, distribute_particles(), ParticleSystem::edit, emit_particles(), eParticleSystemFlag_Pars, eParticleSystemFlag_psys_updated, evaluate_emitter_anim(), ParticleDrawData::flag, ParticleSystemModifierData::flag, ParticleData::flag, ParticleSettings::flag, ParticleSystem::flag, PTCacheEdit::flags, float(), ParticleSystem::free_edit, free_hair(), free_keyed_keys(), free_unexisting_particles(), ParticleSettings::from, hair_needs_recalc(), hair_step(), ParticleSettings::hair_step, ParticleSettings::id, ID_RECALC_PSYS_RESET, ParticleSystem::imat, initialize_all_particles(), invert_m4_m4(), LOOP_EXISTING_PARTICLES, ParticleSystemModifierData::mesh_final, NULL, ParticleSimulationData::ob, Object::obmat, PARS_NO_DISP, ParticleSystem::part, PART_FROM_VERT, PART_HAIR, PART_HAIR_REGROW, PART_PHYS_KEYED, PART_PHYS_NO, PARTICLE_DRAW_DATA_UPDATED, PARTICLE_P, particle_settings_free_local(), particle_settings_localize(), particles_fluid_step(), particles_has_bubble(), particles_has_flip(), particles_has_foam(), particles_has_spray(), particles_has_tracer(), ParticleSystem::pdd, ParticleSettings::phystype, ParticleSimulationData::psmd, PTCacheEdit::psmd_eval, ParticleSimulationData::psys, PTCacheEdit::psys, psys_check_enabled(), psys_count_keyed_targets(), PSYS_EDITED, PTCacheEdit::psys_eval, psys_frand(), psys_free_path_cache(), psys_get_current_display_percentage(), psys_get_modifier(), PSYS_HAIR_DONE, PSYS_OB_ANIM_RESTORE, psys_orig_get(), psys_prepare_physics(), psys_reset(), PSYS_RESET_ALL, PSYS_SHARED_CACHES, psys_update_path_cache(), PT_CACHE_EDIT_UPDATE_PARTICLE_FROM_EVAL, ParticleSettings::randsize, ParticleSystem::recalc, reset_particle(), save_hair(), ParticleSimulationData::scene, scene, set_keyed_keys(), ParticleData::size, ParticleSettings::size, system_step(), ParticleSettings::totpart, ParticleSystem::totpart, ParticleSystem::totunexist, and ParticleSettings::type.

Referenced by BKE_object_handle_data_update(), and deformVerts().

particles_are_dynamic()

static int particles_are_dynamic ( ParticleSystem *  psys )

static

Definition at line 101 of file particle_system.c.

References ELEM, ParticleSystem::flag, PointCache::flag, ParticleSystem::part, PART_HAIR, PART_PHYS_BOIDS, PART_PHYS_FLUID, PART_PHYS_NEWTON, ParticleSettings::phystype, ParticleSystem::pointcache, PSYS_HAIR_DYNAMICS, PTCACHE_BAKED, and ParticleSettings::type.

Referenced by psys_get_current_display_percentage().

particles_fluid_step()

static void particles_fluid_step ( ParticleSimulationData *  sim, int  cfra, const bool  use_render_params  )

static

Definition at line 4179 of file particle_system.c.

References add_v3_v3(), add_v3_v3v3(), ParticleData::alive, ParticleKey::ave, BKE_modifiers_findby_type(), BLI_rng_free(), BLI_rng_get_double(), BLI_rng_new_srandom(), BLI_snprintf(), FluidDomainSettings::cell_size, ParticleKey::co, copy_v3_v3(), ParticleData::dietime, ParticleSettings::disp, FluidModifierData::domain, double(), FluidDomainSettings::dx, RenderData::efra, eModifierType_Fluid, ParticleSettings::end, fabsf, float(), FluidDomainSettings::fluid, FLUID_DOMAIN_PARTICLE_BUBBLE, FLUID_DOMAIN_PARTICLE_FLIP, FLUID_DOMAIN_PARTICLE_FOAM, FLUID_DOMAIN_PARTICLE_SPRAY, FLUID_DOMAIN_PARTICLE_TRACER, ParticleData::lifetime, ParticleSettings::lifetime, madd_v3fl_v3fl_v3fl_v3i(), manta_get_res_x(), manta_get_res_y(), manta_get_res_z(), manta_liquid_get_flip_particle_flag_at(), manta_liquid_get_flip_particle_position_x_at(), manta_liquid_get_flip_particle_position_y_at(), manta_liquid_get_flip_particle_position_z_at(), manta_liquid_get_flip_particle_velocity_x_at(), manta_liquid_get_flip_particle_velocity_y_at(), manta_liquid_get_flip_particle_velocity_z_at(), manta_liquid_get_num_flip_particles(), manta_liquid_get_num_snd_particles(), manta_liquid_get_particle_res_x(), manta_liquid_get_particle_res_y(), manta_liquid_get_particle_res_z(), manta_liquid_get_particle_upres(), manta_liquid_get_snd_particle_flag_at(), manta_liquid_get_snd_particle_position_x_at(), manta_liquid_get_snd_particle_position_y_at(), manta_liquid_get_snd_particle_position_z_at(), manta_liquid_get_snd_particle_velocity_x_at(), manta_liquid_get_snd_particle_velocity_y_at(), manta_liquid_get_snd_particle_velocity_z_at(), max, MAX3, MEM_freeN, min, mul_m4_v3(), mul_v3_fl(), mul_v3_v3(), NULL, ParticleSimulationData::ob, Object::obmat, FluidDomainSettings::p0, FluidDomainSettings::p1, PARS_ALIVE, ParticleSystem::part, PART_FLUID_FLIP, FluidDomainSettings::particle_type, PARTICLE_TYPE_BUBBLE, PARTICLE_TYPE_DELETE, PARTICLE_TYPE_FOAM, PARTICLE_TYPE_SPRAY, PARTICLE_TYPE_TRACER, ParticleSystem::particles, particles_has_bubble(), particles_has_flip(), particles_has_foam(), particles_has_spray(), particles_has_tracer(), ParticleSimulationData::psys, psys_frand(), r, Scene::r, ParticleSettings::randsize, realloc_particles(), FluidDomainSettings::res_max, FluidDomainSettings::res_min, ParticleSimulationData::rng, ParticleKey::rot, Object::scale, ParticleSimulationData::scene, ParticleSystem::seed, size(), ParticleData::size, ParticleSettings::size, ParticleSettings::sta, ParticleData::state, sub_v3_v3(), sub_v3_v3v3(), ParticleData::time, ParticleSettings::totpart, ParticleSystem::totpart, ParticleSettings::type, unit_qt(), UNUSED_VARS, ParticleKey::vel, and zero_v3().

Referenced by particle_system_update().

particles_has_bubble()

static bool particles_has_bubble ( short  parttype )

static

Definition at line 4169 of file particle_system.c.

References ELEM, PART_FLUID_BUBBLE, PART_FLUID_FOAMBUBBLE, and PART_FLUID_SPRAYFOAMBUBBLE.

Referenced by particle_system_update(), and particles_fluid_step().

particles_has_flip()

static bool particles_has_flip ( short  parttype )

static

Definition at line 4154 of file particle_system.c.

References PART_FLUID_FLIP.

Referenced by particle_system_update(), and particles_fluid_step().

particles_has_foam()

static bool particles_has_foam ( short  parttype )

static

Definition at line 4174 of file particle_system.c.

References ELEM, PART_FLUID_FOAM, PART_FLUID_SPRAYFOAM, and PART_FLUID_SPRAYFOAMBUBBLE.

Referenced by particle_system_update(), and particles_fluid_step().

particles_has_spray()

static bool particles_has_spray ( short  parttype )

static

Definition at line 4164 of file particle_system.c.

References ELEM, PART_FLUID_SPRAY, PART_FLUID_SPRAYFOAM, and PART_FLUID_SPRAYFOAMBUBBLE.

Referenced by particle_system_update(), and particles_fluid_step().

particles_has_tracer()

static bool particles_has_tracer ( short  parttype )

static

Definition at line 4159 of file particle_system.c.

References PART_FLUID_TRACER.

Referenced by particle_system_update(), and particles_fluid_step().

particlesystem_modifiersForeachIDLink()

static void particlesystem_modifiersForeachIDLink ( void *  user_data, Object *  UNUSEDobject, ID **  id_pointer, int  cb_flag  )

static

Definition at line 4997 of file particle_system.c.

References data, and user_data.

Referenced by BKE_particlesystem_id_loop().

psys_calc_dmcache()

void psys_calc_dmcache	(	Object *	ob,
		Mesh *	mesh_final,
		Mesh *	mesh_original,
		ParticleSystem *	psys
	)

Definition at line 332 of file particle_system.c.

References CD_ORIGINDEX, CustomData_get_layer(), Object::data, Mesh_Runtime::deformed_only, DMCACHE_ISCHILD, DMCACHE_NOTFOUND, Mesh::fdata, ParticleSettings::from, if(), LinkNode::link, LOOP_PARTICLES, MEM_callocN, MEM_freeN, node, NULL, ORIGINDEX_NONE, ParticleSystem::part, PART_FROM_VERT, PARTICLE_P, POINTER_AS_INT, POINTER_FROM_INT, psys_particle_dm_face_lookup(), Mesh::runtime, Mesh::totface, Mesh::totvert, and ParticleSettings::use_modifier_stack.

Referenced by distribute_particles_on_dm(), distribute_simple_children(), and hair_step().

psys_changed_type()

void psys_changed_type	(	Object *	ob,
		ParticleSystem *	psys
	)

Definition at line 4634 of file particle_system.c.

References BKE_ptcache_id_clear(), BKE_ptcache_id_from_particles(), CLAMP, ParticleSettings::distr, ParticleSettings::draw_as, ELEM, ParticleSettings::end, ParticleSystem::flag, free_hair(), ParticleSettings::lifetime, MAX2, ParticleSystem::part, PART_DISTR_GRID, PART_DISTR_JIT, PART_DRAW_GR, PART_DRAW_NOT, PART_DRAW_OB, PART_DRAW_PATH, PART_DRAW_REND, PART_HAIR, PART_PHYS_KEYED, ParticleSettings::path_end, ParticleSettings::path_start, ParticleSettings::phystype, PSYS_KEYED, psys_reset(), PSYS_RESET_ALL, PTCACHE_CLEAR_ALL, ParticleSettings::ren_as, and ParticleSettings::type.

psys_check_boid_data()

void psys_check_boid_data

(

ParticleSystem *

psys

)

Definition at line 4672 of file particle_system.c.

References ParticleData::boid, LOOP_PARTICLES, MEM_callocN, MEM_freeN, NULL, ParticleSystem::part, PART_PHYS_BOIDS, PARTICLE_P, ParticleSystem::particles, ParticleSettings::phystype, and ParticleSystem::totpart.

Referenced by new_particle_settings_exec(), and psys_prepare_physics().

psys_clear_temp_pointcache()

static void psys_clear_temp_pointcache ( ParticleSystem *  psys )

static

Definition at line 1309 of file particle_system.c.

References BKE_ptcache_free_mem(), PointCache::flag, PointCache::mem_cache, ParticleSystem::pointcache, and PTCACHE_DISK_CACHE.

Referenced by system_step().

psys_count_keyed_targets()

void psys_count_keyed_targets

(

ParticleSimulationData *

sim

)

Definition at line 1193 of file particle_system.c.

References ParticleTarget::duration, ListBase::first, ParticleSystem::flag, ParticleSettings::keyed_loops, ParticleTarget::next, ParticleSimulationData::ob, ParticleSystem::part, ParticleSimulationData::psys, psys_get_target_system(), PSYS_KEYED_TIMING, ParticleSystem::targets, and ParticleSystem::totkeyed.

Referenced by particle_system_update().

psys_get_birth_coords()

void psys_get_birth_coords	(	ParticleSimulationData *	sim,
		ParticleData *	pa,
		ParticleKey *	state,
		float	dtime,
		float	cfra
	)

Definition at line 732 of file particle_system.c.

References ParticleSettings::avefac, ParticleSettings::avemode, axis_angle_to_quat(), BLI_assert, ParticleData::boid, copy_qt_qt(), copy_v3_v3(), cosf, cross_v3_v3v3(), dot_v3v3(), fabsf, ParticleData::foffset, ParticleSettings::from, ParticleData::fuv, get_angular_velocity_vector(), interp_qt_qtqt(), invert_qt_qt_normalized(), ParticleTexture::ivel, M_PI, madd_v3_v3fl(), mat3_to_quat(), mat3_to_quat_is_ok(), mat4_to_quat(), mul_m4_v3(), mul_mat3_m4_v3(), mul_qt_qtqt(), mul_qt_v3(), mul_v3_fl(), mul_v3_v3fl(), negate_v3(), negate_v3_v3(), nor, normalize_qt(), normalize_v3(), normalize_v3_v3(), ParticleSettings::normfac, NULL, ParticleData::num, ParticleData::num_dmcache, ParticleSimulationData::ob, OB_POSX, OB_POSZ, ParticleSettings::ob_vel, ParticleSettings::obfac, Object::obmat, PAMAP_IVEL, ParticleSystem::part, PART_AVE_RAND, PART_PHYS_BOIDS, PART_ROT_GLOB_X, PART_ROT_GLOB_Y, PART_ROT_GLOB_Z, PART_ROT_NOR, PART_ROT_NOR_TAN, PART_ROT_OB_X, PART_ROT_OB_Y, PART_ROT_OB_Z, PART_ROT_VEL, ParticleSettings::partfac, ParticleSystem::particles, ParticleSettings::phasefac, ParticleSettings::phystype, ParticleData::prev_state, project_v3_v3v3(), ParticleSimulationData::psmd, ParticleSimulationData::psys, psys_frand(), psys_get_texture(), psys_particle_on_emitter(), psys_particle_value_from_verts(), ParticleSettings::randfac, ParticleSettings::randphasefac, ParticleSettings::randrotfac, rot, ParticleSettings::rotmode, sinf, ParticleData::state, state, sub_v3_v3(), sub_v3_v3v3(), ParticleSettings::tanfac, ParticleSettings::tanphase, unit_qt(), vec_to_quat(), ParticleKey::vel, and zero_v3().

Referenced by explodeMesh(), and reset_particle().

psys_get_child_number()

int psys_get_child_number	(	Scene *	scene,
		ParticleSystem *	psys,
		const bool	use_render_params
	)

Definition at line 305 of file particle_system.c.

References ParticleSettings::child_nbr, ParticleSettings::childtype, get_render_child_particle_number(), ParticleSystem::part, Scene::r, ParticleSettings::ren_child_nbr, and scene.

Referenced by distribute_simple_children(), and psys_get_tot_child().

psys_get_current_display_percentage()

float psys_get_current_display_percentage	(	ParticleSystem *	psys,
		const bool	use_render_params
	)

Definition at line 114 of file particle_system.c.

References ParticleSettings::child_nbr, ParticleSettings::childtype, ParticleSettings::disp, PointCache::flag, ParticleSystem::part, particles_are_dynamic(), ParticleSystem::pointcache, and PTCACHE_BAKING.

Referenced by cached_step(), hair_step(), particle_system_update(), and system_step().

psys_get_pointcache_start_end()

void psys_get_pointcache_start_end	(	Scene *	scene,
		ParticleSystem *	psys,
		int *	sfra,
		int *	efra
	)

Definition at line 1315 of file particle_system.c.

References RenderData::efra, ParticleSettings::end, ParticleSettings::lifetime, max_ii(), min_ii(), ParticleSystem::part, RenderData::pefra, Scene::r, scene, and ParticleSettings::sta.

Referenced by BKE_ptcache_bake(), and system_step().

psys_get_target_system()

ParticleSystem* psys_get_target_system	(	Object *	ob,
		ParticleTarget *	pt
	)

Definition at line 1169 of file particle_system.c.

References BLI_findlink(), ELEM, ParticleTarget::flag, NULL, ParticleTarget::ob, Object::particlesystem, ParticleTarget::psys, and PTARGET_VALID.

Referenced by dynamics_step(), psys_count_keyed_targets(), psys_sph_init(), rule_avoid_collision(), rule_fight(), and rule_separate().

psys_get_tot_child()

int psys_get_tot_child	(	Scene *	scene,
		ParticleSystem *	psys,
		const bool	use_render_params
	)

Definition at line 323 of file particle_system.c.

References psys_get_child_number(), scene, and ParticleSystem::totpart.

Referenced by distribute_invalid(), distribute_simple_children(), psys_thread_context_init_distribute(), psys_update_path_cache(), and update_children().

psys_hair_use_simulation()

static bool psys_hair_use_simulation ( ParticleData *  pa, float  max_length  )

static

Definition at line 3271 of file particle_system.c.

References HairKey::co, ParticleData::hair, len_v3v3(), length(), and ParticleData::totkey.

Referenced by hair_create_input_mesh().

psys_make_temp_pointcache()

void psys_make_temp_pointcache	(	Object *	ob,
		ParticleSystem *	psys
	)

Definition at line 1297 of file particle_system.c.

References BKE_ptcache_disk_to_mem(), BKE_ptcache_id_from_particles(), BLI_listbase_is_empty(), PointCache::flag, PointCache::mem_cache, ParticleSystem::pointcache, and PTCACHE_DISK_CACHE.

psys_prepare_physics()

static void psys_prepare_physics ( ParticleSimulationData *  sim )

static

Definition at line 4721 of file particle_system.c.

References BKE_ptcache_id_clear(), BKE_ptcache_id_from_particles(), BLI_assert, ParticleSettings::boids, ELEM, ParticleSystem::flag, ParticleSettings::fluid, free_keyed_keys(), NULL, ParticleSimulationData::ob, ParticleSystem::part, PART_PHYS_BOIDS, PART_PHYS_FLUID, PART_PHYS_KEYED, PART_PHYS_NO, ParticleSettings::phystype, ParticleSimulationData::psys, psys_check_boid_data(), PSYS_KEYED, and PTCACHE_CLEAR_ALL.

Referenced by particle_system_update().

psys_reset()

void psys_reset	(	ParticleSystem *	psys,
		int	mode
	)

Definition at line 141 of file particle_system.c.

References ParticleSystem::alloc_fluidsprings, BKE_ptcache_invalidate(), ParticleSystem::child, ParticleSystem::edit, ELEM, ParticleSystem::flag, ParticleSystem::fluid_springs, ParticleSystem::free_edit, LOOP_PARTICLES, MEM_freeN, NULL, PARS_NO_DISP, PARTICLE_P, ParticleSystem::pointcache, PSYS_EDITED, psys_free_particles(), psys_free_path_cache(), PSYS_HAIR_DONE, PSYS_KEYED, PSYS_RESET_ALL, PSYS_RESET_CACHE_MISS, PSYS_RESET_DEPSGRAPH, ParticleSystem::tot_fluidsprings, tot_particles(), ParticleSystem::totchild, ParticleSystem::totkeyed, and ParticleSystem::totpart.

Referenced by BKE_ptcache_id_reset(), clear_edited_exec(), particle_system_update(), psys_changed_type(), and system_step().

psys_sph_density()

void psys_sph_density	(	BVHTree *	tree,
		SPHData *	sphdata,
		float	co[3],
		float	vars[2]
	)

Definition at line 2182 of file particle_system.c.

References SPHRangeData::data, SPHData::density_cb, SPHFluidSettings::flag, ParticleSettings::fluid, SPHRangeData::h, SPHData::hfac, SPHData::mass, SPHRangeData::mass, ParticleSystem::part, SPHData::psys, SPHFluidSettings::radius, ParticleSettings::size, sph_evaluate_func(), SPH_FAC_RADIUS, and tree.

psys_sph_finalize()

void psys_sph_finalize

(

SPHData *

sphdata

)

Definition at line 2171 of file particle_system.c.

References BLI_edgehash_free(), SPHData::eh, NULL, and psys_sph_flush_springs().

Referenced by dynamics_step().

psys_sph_flush_springs()

static void psys_sph_flush_springs ( SPHData *  sphdata )

static

Definition at line 2161 of file particle_system.c.

References BLI_buffer_at, BLI_buffer_field_free, BLI_Buffer::count, SPHData::new_springs, SPHData::psys, and sph_spring_add().

Referenced by psys_sph_finalize().

psys_sph_init()

void psys_sph_init	(	ParticleSimulationData *	sim,
		SPHData *	sphdata
	)

Definition at line 2122 of file particle_system.c.

References BLI_buffer_field_init, SPHData::density_cb, SPHData::eh, ListBase::first, ParticleSettings::fluid, SPHData::force_cb, SPHData::gravity, PhysicsSettings::gravity, SPHData::hfac, SPHData::mass, SPHData::new_springs, ParticleTarget::next, NULL, ParticleSimulationData::ob, SPHData::pa, ParticleSystem::part, Scene::physics_settings, ParticleSimulationData::psys, SPHData::psys, psys_get_target_system(), psys_uses_gravity(), ParticleSimulationData::scene, SPHFluidSettings::solver, sph_density_accum_cb(), sph_force_cb(), SPH_SOLVER_DDR, sph_springhash_build(), sphclassical_density_accum_cb(), sphclassical_force_cb(), and ParticleSystem::targets.

Referenced by dynamics_step().

psys_tasks_create()

void psys_tasks_create	(	ParticleThreadContext *	ctx,
		int	startpart,
		int	endpart,
		ParticleTask **	r_tasks,
		int *	r_numtasks
	)

Definition at line 470 of file particle_system.c.

References ParticleTask::begin, BLI_assert, BLI_system_thread_count(), ParticleTask::ctx, ParticleTask::end, MEM_callocN, and min_ii().

Referenced by distribute_particles_on_dm(), and psys_cache_child_paths().

psys_tasks_free()

void psys_tasks_free	(	ParticleTask *	tasks,
		int	numtasks
	)

Definition at line 499 of file particle_system.c.

References BLI_rng_free(), and MEM_freeN.

Referenced by distribute_particles_on_dm(), and psys_cache_child_paths().

psys_thread_context_free()

void psys_thread_context_free

(

ParticleThreadContext *

ctx

)

Definition at line 516 of file particle_system.c.

References BKE_curvemapping_free(), BKE_lattice_deform_data_destroy(), ParticleThreadContext::clumpcurve, ParticleThreadContext::index, ParticleThreadContext::jit, ParticleThreadContext::jitoff, ParticleSystem::lattice_deform_data, MEM_freeN, NULL, ParticleSimulationData::psys, ParticleThreadContext::roughcurve, ParticleThreadContext::seams, ParticleThreadContext::sim, ParticleThreadContext::tree, ParticleThreadContext::twistcurve, ParticleThreadContext::vg_clump, ParticleThreadContext::vg_kink, ParticleThreadContext::vg_length, ParticleThreadContext::vg_rough1, ParticleThreadContext::vg_rough2, ParticleThreadContext::vg_roughe, ParticleThreadContext::vg_twist, and ParticleThreadContext::weight.

Referenced by distribute_particles_on_dm(), and psys_cache_child_paths().

psys_thread_context_init()

void psys_thread_context_init	(	ParticleThreadContext *	ctx,
		ParticleSimulationData *	sim
	)

Definition at line 462 of file particle_system.c.

References BKE_object_material_get(), ParticleThreadContext::ma, ParticleThreadContext::mesh, ParticleSystemModifierData::mesh_final, ParticleSimulationData::ob, ParticleSettings::omat, ParticleSystem::part, ParticleSimulationData::psmd, ParticleSimulationData::psys, and ParticleThreadContext::sim.

Referenced by psys_thread_context_init_distribute(), and psys_thread_context_init_path().

psys_unique_name()

void psys_unique_name	(	Object *	object,
		ParticleSystem *	psys,
		const char *	defname
	)

Definition at line 193 of file particle_system.c.

References BLI_uniquename(), ParticleSystem::name, and Object::particlesystem.

Referenced by copy_particle_systems_to_object(), and object_add_or_copy_particle_system().

psys_update_effectors()

static void psys_update_effectors ( ParticleSimulationData *  sim )

static

Definition at line 1400 of file particle_system.c.

References BKE_effectors_create(), BKE_effectors_free(), ParticleSimulationData::depsgraph, ParticleSettings::effector_weights, ParticleSystem::effectors, ParticleSettings::flag, ParticleSimulationData::ob, ParticleSystem::part, PART_ROT_DYN, precalc_guides(), and ParticleSimulationData::psys.

Referenced by cached_step(), dynamics_step(), and hair_step().

psys_update_particle_bvhtree()

static void psys_update_particle_bvhtree ( ParticleSystem *  psys, float  cfra  )

static

Definition at line 1326 of file particle_system.c.

References BLI_bvhtree_balance(), BLI_bvhtree_free(), BLI_bvhtree_insert(), BLI_bvhtree_new(), BLI_rw_mutex_lock(), BLI_rw_mutex_unlock(), ParticleSystem::bvhtree, ParticleSystem::bvhtree_frame, LOOP_SHOWN_PARTICLES, PARS_ALIVE, PARTICLE_P, psys_bvhtree_rwlock, THREAD_LOCK_READ, and THREAD_LOCK_WRITE.

Referenced by dynamics_step().

psys_update_particle_tree()

void psys_update_particle_tree	(	ParticleSystem *	psys,
		float	cfra
	)

Definition at line 1367 of file particle_system.c.

References LOOP_SHOWN_PARTICLES, PARS_ALIVE, PARTICLE_P, ParticleSystem::totpart, ParticleSystem::tree, and ParticleSystem::tree_frame.

Referenced by dynamics_step(), and precalculate_effector().

psys_update_path_cache()

static void psys_update_path_cache ( ParticleSimulationData *  sim, float  cfra, const bool  use_render_params  )

static

Definition at line 3183 of file particle_system.c.

References ParticleSettings::childtype, DAG_EVAL_RENDER, DEG_get_mode(), ParticleSimulationData::depsgraph, distribute_particles(), ParticleSettings::draw_as, ELEM, ParticleSystem::flag, PointCache::flag, ParticleEditSettings::flag, ID_RECALC_PSYS_CHILD, ID_RECALC_PSYS_RESET, Object::mode, NULL, ParticleSimulationData::ob, OB_MODE_WEIGHT_PAINT, ParticleSettings::parents, ParticleSystem::part, PART_CHILD_FACES, PART_DRAW_GR, PART_DRAW_OB, PART_DRAW_PATH, PART_DRAW_REND, PART_FROM_CHILD, PART_HAIR, ToolSettings::particle, ParticleSystem::pathcache, PE_DRAW_PART, ParticleSystem::pointcache, ParticleSimulationData::psys, psys_cache_child_paths(), psys_cache_paths(), psys_find_parents(), psys_free_children(), psys_free_path_cache(), psys_get_tot_child(), PSYS_HAIR_DONE, PSYS_HAIR_DYNAMICS, psys_in_edit_mode(), PSYS_KEYED, PSYS_VG_DENSITY, PTCACHE_BAKED, PTCACHE_BAKING, realloc_particles(), ParticleSystem::recalc, ParticleSettings::ren_as, ParticleSimulationData::scene, Scene::toolsettings, ParticleSystem::totchild, ParticleSystem::totpart, ParticleSettings::type, and ParticleSystem::vgroup.

Referenced by hair_step(), particle_system_update(), and system_step().

realloc_particles()

static void realloc_particles ( ParticleSimulationData *  sim, int  new_totpart  )

static

Definition at line 203 of file particle_system.c.

References ParticleData::boid, ParticleSystem::child, ParticleSettings::distr, ParticleSystem::edit, ParticleSystem::free_edit, ParticleSettings::from, ParticleSettings::grid_res, ParticleData::keys, LOOP_PARTICLES, MEM_callocN, MEM_freeN, MIN2, NULL, ParticleSystem::part, PART_DISTR_GRID, PART_FROM_VERT, PART_PHYS_BOIDS, PARTICLE_P, ParticleSystem::particles, ParticleSettings::phystype, ParticleSimulationData::psys, psys_free_pdd(), ParticleSystem::totchild, ParticleSettings::totpart, and ParticleSystem::totpart.

Referenced by emit_particles(), particles_fluid_step(), and psys_update_path_cache().

reset_all_particles()

static void reset_all_particles ( ParticleSimulationData *  sim, float  dtime, float  cfra, int  from  )

static

Definition at line 1157 of file particle_system.c.

References from, ParticleSystem::particles, ParticleSimulationData::psys, reset_particle(), and ParticleSystem::totpart.

Referenced by system_step().

reset_particle()

void reset_particle	(	ParticleSimulationData *	sim,
		ParticleData *	pa,
		float	dtime,
		float	cfra
	)

Definition at line 1076 of file particle_system.c.

References BoidData::acc, ParticleData::alive, ParticleData::boid, ParticleSettings::boids, ParticleSystem::cfra, BoidParticle::data, ParticleSimulationData::depsgraph, ParticleData::dietime, eBoidMode_InAir, evaluate_emitter_anim(), ListBase::first, ParticleSystem::flag, PointCache::flag, PhysicsSettings::flag, BoidParticle::gravity, PhysicsSettings::gravity, BoidData::health, BoidSettings::health, init_particle_texture(), ParticleTexture::life, ParticleData::lifetime, ParticleSettings::lifetime, PointCache::mem_cache, MIN2, BoidData::mode, ParticleSimulationData::ob, PAMAP_LIFE, PARS_ALIVE, PARS_DEAD, PARS_UNBORN, ParticleSystem::part, PART_HAIR, PART_PHYS_BOIDS, ParticleSystem::particles, PHYS_GLOBAL_GRAVITY, Scene::physics_settings, ParticleSettings::phystype, ParticleSystem::pointcache, ParticleSimulationData::psys, psys_frand(), psys_get_birth_coords(), psys_get_dietime_from_cache(), psys_get_texture(), PSYS_OB_ANIM_RESTORE, PTCACHE_BAKED, ParticleSettings::randlife, ParticleSimulationData::scene, ParticleData::state, BoidData::state_id, BoidSettings::states, ParticleKey::time, ParticleData::time, and ParticleSettings::type.

Referenced by brush_add(), cached_step(), dynamics_step(), particle_system_update(), and reset_all_particles().

save_hair()

static void save_hair ( ParticleSimulationData *  sim, float   UNUSEDcfra  )

static

Definition at line 3563 of file particle_system.c.

References HairKey::co, ParticleKey::co, copy_v3_v3(), ParticleData::hair, ParticleSettings::hair_step, Object::imat, invert_m4_m4(), ParticleSystem::lattice_deform_data, LOOP_PARTICLES, MEM_callocN, ParticleSystemModifierData::mesh_final, mul_m4_v3(), NULL, ParticleSimulationData::ob, Object::obmat, ParticleSystem::part, PARTICLE_P, ParticleSimulationData::psmd, ParticleSimulationData::psys, psys_create_lattice_deform_data(), psys_vec_rot_to_face(), ParticleData::state, sub_v3_v3(), HairKey::time, ParticleKey::time, ParticleData::totkey, ParticleSystem::totpart, HairKey::weight, and zero_v3().

Referenced by particle_system_update().

set_keyed_keys()

static void set_keyed_keys ( ParticleSimulationData *  sim )

static

Definition at line 1217 of file particle_system.c.

References BLI_findlink(), copy_particle_key(), ParticleSimulationData::depsgraph, ParticleTarget::duration, ListBase::first, ParticleTarget::flag, ParticleSystem::flag, float(), free_keyed_keys(), LOOP_PARTICLES, MEM_callocN, ParticleTarget::next, ParticleSimulationData::ob, ParticleTarget::ob, PARTICLE_P, ParticleSystem::particles, Object::particlesystem, ParticleSimulationData::psys, ParticleTarget::psys, psys_get_particle_state(), PSYS_KEYED, PSYS_KEYED_TIMING, PTARGET_VALID, ParticleSimulationData::scene, ParticleSystem::targets, time, ParticleKey::time, ParticleTarget::time, ParticleData::totkey, ParticleSystem::totkeyed, and ParticleSystem::totpart.

Referenced by particle_system_update().

sph_density_accum_cb()

static void sph_density_accum_cb ( void *  userdata, int  index, const float  co[3], float  squared_dist  )

static

Definition at line 1724 of file particle_system.c.

References SPHRangeData::data, SPHRangeData::h, if(), SPHNeighbor::index, SPHRangeData::massfac, SPHRangeData::neighbors, SPHRangeData::npsys, SPHRangeData::pa, ParticleSystem::particles, SPHNeighbor::psys, ParticleData::size, SPH_NEIGHBORS, sqrtf, SPHRangeData::tot_neighbors, UNUSED_VARS, and SPHRangeData::use_size.

Referenced by psys_sph_init(), and sph_force_cb().

sph_evaluate_func()

static void sph_evaluate_func ( BVHTree *  tree, ParticleSystem **  psys, const float  co[3], SPHRangeData *  pfr, float  interaction_radius, BVHTree_RangeQuery  callback  )

static

Definition at line 1696 of file particle_system.c.

References BLI_bvhtree_range_query(), BLI_rw_mutex_lock(), BLI_rw_mutex_unlock(), callback, ParticleSettings::flag, SPHRangeData::mass, ParticleSettings::mass, SPHRangeData::massfac, SPHRangeData::npsys, ParticleSystem::part, PART_SIZEMASS, psys_bvhtree_rwlock, THREAD_LOCK_READ, SPHRangeData::tot_neighbors, tree, and SPHRangeData::use_size.

Referenced by psys_sph_density(), sph_force_cb(), sphclassical_calc_dens(), and sphclassical_force_cb().

sph_force_cb()

static void sph_force_cb ( void *  sphdata_v, ParticleKey *  state, float *  force, float *  UNUSEDimpulse  )

static

Definition at line 1791 of file particle_system.c.

References BLI_buffer_append, BLI_edgehash_lookup(), SPHFluidSettings::buoyancy, ParticleKey::co, copy_v3_v3(), SPHRangeData::data, data, ParticleSpring::delete_flag, dot_v3v3(), SPHData::eh, SPHFluidSettings::flag, ParticleSettings::flag, ParticleSettings::fluid, ParticleSystem::fluid_springs, SPHData::gravity, SPHRangeData::h, SPHData::hfac, if(), SPHNeighbor::index, madd_v3_v3fl(), madd_v3_v3v3fl(), SPHData::mass, SPHRangeData::mass, ParticleSettings::mass, SPHRangeData::neighbors, SPHData::new_springs, normalize_v3(), NULL, SPHData::pa, SPHRangeData::pa, ParticleSystem::part, PART_SIZEMASS, PART_TIME_AUTOSF, ParticleSpring::particle_index, ParticleSystem::particles, SPHData::pass, POINTER_AS_INT, ParticleData::prev_state, SPHData::psys, SPHNeighbor::psys, SPHFluidSettings::radius, SPHFluidSettings::rest_density, ParticleSpring::rest_length, SPHFluidSettings::rest_length, ParticleData::size, SPH_CURRENT_REST_LENGTH, sph_density_accum_cb(), sph_evaluate_func(), SPH_FAC_DENSITY, SPH_FAC_RADIUS, SPH_FAC_REPULSION, SPH_FAC_REST_LENGTH, SPH_FAC_VISCOSITY, sph_particle_courant(), SPH_VISCOELASTIC_SPRINGS, SPHFluidSettings::spring_frames, SPHFluidSettings::spring_k, state, SPHFluidSettings::stiffness_k, SPHFluidSettings::stiffness_knear, sub_v3_v3v3(), ParticleKey::time, ParticleData::time, ParticleSettings::time_flag, SPHRangeData::tot_neighbors, ParticleKey::vel, SPHFluidSettings::viscosity_beta, and SPHFluidSettings::viscosity_omega.

Referenced by psys_sph_init().

sph_integrate()

static void sph_integrate ( ParticleSimulationData *  sim, ParticleData *  pa, float  dfra, SPHData *  sphdata  )

static

Definition at line 2203 of file particle_system.c.

References copy_particle_key(), ParticleSettings::flag, SPHData::force_cb, integrate_particle(), SPHData::mass, ParticleSettings::mass, mul_v3_fl(), SPHData::pa, ParticleSystem::part, PART_SIZEMASS, SPHData::pass, ParticleData::prev_state, ParticleSimulationData::psys, psys_get_timestep(), ParticleData::size, ParticleData::state, sub_v3_v3v3(), and ParticleKey::vel.

Referenced by dynamics_step_sph_classical_integrate_task_cb_ex(), and dynamics_step_sph_ddr_task_cb_ex().

sph_particle_courant()

static void sph_particle_courant ( SPHData *  sphdata, SPHRangeData *  pfr  )

static

Definition at line 1765 of file particle_system.c.

References add_v3_v3(), ParticleKey::co, copy_v3_v3(), SPHData::element_size, SPHData::flow, ParticleSettings::fluid, SPHNeighbor::index, len_v3(), mul_v3_v3fl(), SPHRangeData::neighbors, SPHRangeData::pa, ParticleSystem::part, ParticleSystem::particles, ParticleData::prev_state, SPHData::psys, SPHNeighbor::psys, SPHFluidSettings::radius, sub_v3_v3v3(), SPHRangeData::tot_neighbors, ParticleKey::vel, and zero_v3().

Referenced by sph_force_cb(), and sphclassical_force_cb().

sph_spring_add()

static ParticleSpring* sph_spring_add ( ParticleSystem *  psys, ParticleSpring *  spring  )

static

Definition at line 1573 of file particle_system.c.

References ParticleSystem::alloc_fluidsprings, ParticleSystem::fluid_springs, MEM_callocN, MEM_reallocN, NULL, PSYS_FLUID_SPRINGS_INITIAL_SIZE, and ParticleSystem::tot_fluidsprings.

Referenced by psys_sph_flush_springs().

sph_spring_delete()

static void sph_spring_delete ( ParticleSystem *  psys, int  j  )

static

Definition at line 1593 of file particle_system.c.

References ParticleSystem::alloc_fluidsprings, ParticleSystem::fluid_springs, MEM_reallocN, PSYS_FLUID_SPRINGS_INITIAL_SIZE, and ParticleSystem::tot_fluidsprings.

Referenced by sph_springs_modify().

sph_springhash_build()

static EdgeHash* sph_springhash_build ( ParticleSystem *  psys )

static

Definition at line 1659 of file particle_system.c.

References BLI_edgehash_insert(), BLI_edgehash_new_ex(), ParticleSystem::fluid_springs, NULL, ParticleSpring::particle_index, POINTER_FROM_INT, and ParticleSystem::tot_fluidsprings.

Referenced by psys_sph_init().

sph_springs_modify()

static void sph_springs_modify ( ParticleSystem *  psys, float  dtime  )

static

Definition at line 1608 of file particle_system.c.

References ParticleKey::co, ParticleSpring::delete_flag, SPHFluidSettings::flag, ParticleSettings::fluid, ParticleSystem::fluid_springs, normalize_v3(), ParticleSystem::part, ParticleSpring::particle_index, ParticleSystem::particles, SPHFluidSettings::plasticity_constant, ParticleData::prev_state, ParticleSpring::rest_length, ParticleData::size, sph_spring_delete(), SPH_VISCOELASTIC_SPRINGS, SPHFluidSettings::spring_k, sub_v3_v3v3(), ParticleSystem::tot_fluidsprings, and SPHFluidSettings::yield_ratio.

Referenced by dynamics_step().

sphclassical_calc_dens()

static void sphclassical_calc_dens ( ParticleData *  pa, float   UNUSEDdfra, SPHData *  sphdata  )

static

Definition at line 2100 of file particle_system.c.

References ParticleKey::co, SPHRangeData::data, data, SPHFluidSettings::flag, ParticleSettings::fluid, SPHRangeData::h, SPHData::hfac, SPHData::mass, SPHRangeData::mass, max_ff(), min_ff(), NULL, SPHRangeData::pa, ParticleSystem::part, SPHData::psys, SPHFluidSettings::radius, SPHFluidSettings::rest_density, ParticleSettings::size, sph_evaluate_func(), SPH_FAC_RADIUS, sphclassical_density_accum_cb(), ParticleData::sphdensity, and ParticleData::state.

Referenced by dynamics_step_sph_classical_calc_density_task_cb_ex().

sphclassical_density_accum_cb()

static void sphclassical_density_accum_cb ( void *  userdata, int  index, const float  co[3], float   UNUSEDsquared_dist  )

static

Definition at line 1925 of file particle_system.c.

References ParticleKey::co, SPHRangeData::data, float(), SPHRangeData::h, len_v3(), M_PI, ParticleSettings::mass, SPHRangeData::npsys, SPHRangeData::pa, ParticleSystem::part, ParticleSystem::particles, pow3f(), pow4f(), ParticleData::size, ParticleData::sphdensity, ParticleData::state, sub_v3_v3v3(), and SPHRangeData::use_size.

Referenced by psys_sph_init(), and sphclassical_calc_dens().

sphclassical_force_cb()

static void sphclassical_force_cb ( void *  sphdata_v, ParticleKey *  state, float *  force, float *  UNUSEDimpulse  )

static

Definition at line 1989 of file particle_system.c.

References SPHFluidSettings::buoyancy, ParticleKey::co, dot_v3v3(), SPHFluidSettings::flag, ParticleSettings::flag, float(), ParticleSettings::fluid, SPHData::gravity, SPHRangeData::h, SPHData::hfac, SPHNeighbor::index, M_PI, madd_v3_v3fl(), madd_v3_v3v3fl(), SPHData::mass, SPHRangeData::neighbors, normalize_v3(), NULL, SPHData::pa, SPHRangeData::pa, ParticleSystem::part, PART_SIZEMASS, PART_TIME_AUTOSF, ParticleSystem::particles, SPHData::pass, pow2f(), pow3f(), pow4f(), pow7f(), ParticleData::prev_state, SPHData::psys, SPHNeighbor::psys, SPHFluidSettings::radius, SPHFluidSettings::rest_density, ParticleData::size, sph_evaluate_func(), SPH_FAC_DENSITY, SPH_FAC_RADIUS, sph_particle_courant(), sphclassical_neighbor_accum_cb(), ParticleData::sphdensity, state, SPHFluidSettings::stiffness_k, sub_v3_v3v3(), ParticleSettings::time_flag, SPHRangeData::tot_neighbors, ParticleKey::vel, and SPHFluidSettings::viscosity_omega.

Referenced by psys_sph_init().

sphclassical_neighbor_accum_cb()

static void sphclassical_neighbor_accum_cb ( void *  userdata, int  index, const float  co[3], float   UNUSEDsquared_dist  )

static

Definition at line 1961 of file particle_system.c.

References ParticleKey::co, SPHRangeData::h, SPHNeighbor::index, len_v3(), SPHRangeData::neighbors, SPHRangeData::npsys, ParticleSystem::particles, SPHNeighbor::psys, SPH_NEIGHBORS, ParticleData::state, sub_v3_v3v3(), and SPHRangeData::tot_neighbors.

Referenced by sphclassical_force_cb().

sync_timestep()

static float sync_timestep ( ParticleSystem *  psys, float  t_frac  )

static

Definition at line 3675 of file particle_system.c.

References ParticleSystem::dt_frac, and TIMESTEP_EXPANSION_TOLERANCE.

Referenced by system_step().

system_step()

static void system_step ( ParticleSimulationData *  sim, float  cfra, const bool  use_render_params  )

static

Calculates the next state for all particles of the system. In particles code most 'cfra - ending' are frames, 'time - ending' are 'cfra * timestep' (seconds).

1. Emit particles
2. Check cache (if used) and return if frame is cached
3. Do dynamics
4. Save to cache

Definition at line 4470 of file particle_system.c.

References ParticleSystem::alloc_fluidsprings, BKE_lattice_deform_data_destroy(), BKE_ptcache_id_clear(), BKE_ptcache_id_from_particles(), BKE_ptcache_id_reset(), BKE_ptcache_id_time(), BKE_ptcache_invalidate(), BKE_ptcache_read(), BKE_ptcache_validate(), BKE_ptcache_write(), cached_step(), ParticleSystem::cfra, CLAMP, ParticleSimulationData::courant_num, distribute_particles(), ParticleSystem::dt_frac, dynamics_step(), ELEM, emit_particles(), PointCache::endframe, eParticleSystemFlag_Pars, ParticleSystemModifierData::flag, ParticleData::flag, PointCache::flag, float(), ParticleSystem::fluid_springs, free_unexisting_particles(), ParticleSettings::from, get_base_time_step(), ID_RECALC_PSYS_RESET, initialize_all_particles(), PointCache::last_exact, ParticleSystem::lattice_deform_data, LOOP_PARTICLES, MEM_freeN, MIN_TIMESTEP, NULL, ParticleSimulationData::ob, PARS_NO_DISP, ParticleSystem::part, PART_HAIR, PART_TIME_AUTOSF, PARTICLE_P, ParticleSystem::pointcache, ParticleSimulationData::psmd, ParticleSimulationData::psys, psys_clear_temp_pointcache(), psys_frand(), psys_get_current_display_percentage(), psys_get_pointcache_start_end(), psys_reset(), PSYS_RESET_CACHE_MISS, psys_update_path_cache(), PTCACHE_BAKED, PTCACHE_BAKING, PTCACHE_CLEAR_AFTER, PTCACHE_OUTDATED, PTCACHE_READ_EXACT, PTCACHE_READ_INTERPOLATED, PTCACHE_READ_OLD, PTCACHE_REDO_NEEDED, PTCACHE_RESET_OUTDATED, ParticleSystem::recalc, reset_all_particles(), ParticleSimulationData::scene, PointCache::simframe, ParticleSettings::sta, PointCache::startframe, sync_timestep(), ParticleSettings::time_flag, ParticleSystem::tot_fluidsprings, ParticleSystem::totpart, ParticleSettings::type, update_children(), and update_timestep().

Referenced by particle_system_update().

tot_particles()

static int tot_particles ( ParticleSystem *  psys, PTCacheID *  pid  )

static

Definition at line 129 of file particle_system.c.

References PTCacheID::cache, ParticleSettings::distr, PointCache::flag, ParticleSettings::from, ParticleSettings::grid_res, ParticleSystem::part, PART_DISTR_GRID, PART_FROM_VERT, ParticleSystem::pointcache, PTCACHE_EXTERNAL, ParticleSettings::totpart, PointCache::totpoint, and ParticleSystem::totunexist.

Referenced by emit_particles(), and psys_reset().

update_children()

static void update_children ( ParticleSimulationData *  sim, const bool  use_render_params  )

static

Definition at line 4083 of file particle_system.c.

References ParticleSettings::childtype, distribute_particles(), ParticleSystem::flag, ParticleSystem::part, PART_FROM_CHILD, PART_HAIR, ParticleSimulationData::psys, psys_free_children(), psys_get_tot_child(), PSYS_HAIR_DONE, ParticleSimulationData::scene, ParticleSystem::totchild, and ParticleSettings::type.

Referenced by system_step().

update_courant_num()

static void update_courant_num ( ParticleSimulationData *  sim, ParticleData *  pa, float  dtime, SPHData *  sphdata, SpinLock *  spin  )

static

Definition at line 3626 of file particle_system.c.

References BLI_spin_lock(), BLI_spin_unlock(), ParticleSimulationData::courant_num, SPHData::element_size, SPHData::flow, len_v3(), ParticleData::prev_state, spin, sub_v3_v3v3(), and ParticleKey::vel.

Referenced by dynamics_step_sph_classical_integrate_task_cb_ex(), and dynamics_step_sph_ddr_task_cb_ex().

update_timestep()

static void update_timestep ( ParticleSystem *  psys, ParticleSimulationData *  sim  )

static

Definition at line 3647 of file particle_system.c.

References ParticleSimulationData::courant_num, ParticleSettings::courant_target, ParticleSystem::dt_frac, get_base_time_step(), interpf(), MIN_TIMESTEP, ParticleSystem::part, and TIMESTEP_EXPANSION_FACTOR.

Referenced by system_step().

Variable Documentation

MIN_TIMESTEP

const float MIN_TIMESTEP = 1.0f / 101.0f

static

Definition at line 3615 of file particle_system.c.

Referenced by system_step(), and update_timestep().

psys_bvhtree_rwlock

ThreadRWMutex psys_bvhtree_rwlock = BLI_RWLOCK_INITIALIZER

static

Definition at line 95 of file particle_system.c.

Referenced by psys_update_particle_bvhtree(), and sph_evaluate_func().

TIMESTEP_EXPANSION_FACTOR

const float TIMESTEP_EXPANSION_FACTOR = 0.1f

static

Definition at line 3619 of file particle_system.c.

Referenced by update_timestep().

TIMESTEP_EXPANSION_TOLERANCE

const float TIMESTEP_EXPANSION_TOLERANCE = 1.5f

static

Definition at line 3620 of file particle_system.c.

Referenced by sync_timestep().