particle_distribute.cc File Reference

#include <cstring>
#include "MEM_guardedalloc.h"
#include "BLI_jitter_2d.h"
#include "BLI_kdtree.h"
#include "BLI_math_geom.h"
#include "BLI_rand.h"
#include "BLI_sort.h"
#include "BLI_task.h"
#include "BLI_utildefines.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_modifier_types.h"
#include "DNA_particle_types.h"
#include "BKE_customdata.hh"
#include "BKE_global.hh"
#include "BKE_lib_id.hh"
#include "BKE_mesh.hh"
#include "BKE_mesh_legacy_convert.hh"
#include "BKE_particle.h"
#include "DEG_depsgraph_query.hh"

Go to the source code of this file.

Macros
#define	PSYS_RND_DIST_SKIP   3
#define	ONLY_WORKING_WITH_PA_VERTS   0

Functions
static void	alloc_child_particles (ParticleSystem *psys, int tot)
static void	distribute_simple_children (Scene *scene, Object *ob, Mesh *final_mesh, Mesh *deform_mesh, ParticleSystem *psys, const bool use_render_params)
static void	distribute_grid (Mesh *mesh, ParticleSystem *psys)
static void	hammersley_create (float *out, int n, int seed, float amount)
static void	init_mv_jit (float *jit, int num, int seed2, float amount)
static void	psys_uv_to_w (float u, float v, int quad, float *w)
static int	distribute_binary_search (const float *sum, int n, float value)
static void	distribute_from_verts_exec (ParticleTask *thread, ParticleData *pa, int p)
static void	distribute_from_faces_exec (ParticleTask *thread, ParticleData *pa, int p)
static void	distribute_from_volume_exec (ParticleTask *thread, ParticleData *pa, int p)
static void	distribute_children_exec (ParticleTask *thread, ChildParticle *cpa, int p)
static void	exec_distribute_parent (TaskPool *__restrict, void *taskdata)
static void	exec_distribute_child (TaskPool *__restrict, void *taskdata)
static int	distribute_compare_orig_index (const void *p1, const void *p2, void *user_data)
static void	distribute_invalid (ParticleSimulationData *sim, int from)
static int	psys_thread_context_init_distribute (ParticleThreadContext *ctx, ParticleSimulationData *sim, int from)
static void	psys_task_init_distribute (ParticleTask *task, ParticleSimulationData *sim)
static void	distribute_particles_on_dm (ParticleSimulationData *sim, int from)
static void	distribute_particles_on_shape (ParticleSimulationData *sim, int)
void	distribute_particles (ParticleSimulationData *sim, int from)

Macro Definition Documentation

ONLY_WORKING_WITH_PA_VERTS

#define ONLY_WORKING_WITH_PA_VERTS   0

Definition at line 459 of file particle_distribute.cc.

PSYS_RND_DIST_SKIP

#define PSYS_RND_DIST_SKIP   3

Definition at line 456 of file particle_distribute.cc.

Referenced by distribute_children_exec(), distribute_from_faces_exec(), distribute_from_verts_exec(), distribute_from_volume_exec(), exec_distribute_child(), and exec_distribute_parent().

Function Documentation

alloc_child_particles()

static void alloc_child_particles ( ParticleSystem * psys, int tot )

static

Definition at line 35 of file particle_distribute.cc.

References ParticleSystem::child, ParticleSettings::childtype, MEM_callocN, MEM_freeN(), ParticleSystem::part, and ParticleSystem::totchild.

Referenced by distribute_simple_children(), and psys_thread_context_init_distribute().

distribute_binary_search()

static int distribute_binary_search ( const float * sum, int n, float value )

static

Definition at line 420 of file particle_distribute.cc.

References sum().

Referenced by psys_thread_context_init_distribute().

distribute_children_exec()

static void distribute_children_exec ( ParticleTask * thread, ChildParticle * cpa, int p )

static

Definition at line 687 of file particle_distribute.cc.

References BKE_mesh_orco_verts_transform(), BLI_rng_get_float(), BLI_rng_skip(), CD_MFACE, ParticleThreadContext::cfrom, CustomData_get_layer_for_write(), Object::data, DMCACHE_ISCHILD, float, ChildParticle::foffset, ChildParticle::fuv, ParticleThreadContext::index, ParticleThreadContext::mesh, ChildParticle::num, ParticleSimulationData::ob, ChildParticle::pa, ChildParticle::parent, pow(), psys_particle_on_dm(), PSYS_RND_DIST_SKIP, psys_uv_to_w(), ParticleThreadContext::sim, ParticleThreadContext::tree, MFace::v4, ChildParticle::w, and w().

Referenced by exec_distribute_child().

distribute_compare_orig_index()

static int distribute_compare_orig_index ( const void * p1, const void * p2, void * user_data )

static

Definition at line 827 of file particle_distribute.cc.

Referenced by psys_thread_context_init_distribute().

distribute_from_faces_exec()

static void distribute_from_faces_exec ( ParticleTask * thread, ParticleData * pa, int p )

static

Definition at line 518 of file particle_distribute.cc.

References BLI_assert, BLI_rng_get_float(), BLI_rng_skip(), CD_MFACE, CustomData_get_layer_for_write(), ParticleThreadContext::distr, fmod(), ParticleData::foffset, ParticleData::fuv, ParticleThreadContext::index, ParticleThreadContext::jit, ParticleThreadContext::jitlevel, ParticleThreadContext::jitoff, ParticleThreadContext::mesh, ParticleData::num, PART_DISTR_JIT, PART_DISTR_RAND, PSYS_RND_DIST_SKIP, psys_uv_to_w(), and MFace::v4.

Referenced by exec_distribute_parent().

distribute_from_verts_exec()

static void distribute_from_verts_exec ( ParticleTask * thread, ParticleData * pa, int p )

static

Definition at line 460 of file particle_distribute.cc.

References BKE_mesh_orco_verts_transform(), BLI_assert, BLI_rng_skip(), CD_MFACE, CustomData_get_layer_for_write(), DMCACHE_NOTFOUND, ELEM, Mesh::fdata_legacy, ParticleData::foffset, ParticleData::fuv, ParticleThreadContext::index, ParticleThreadContext::mesh, ParticleData::num, ParticleData::num_dmcache, psys_particle_on_dm(), PSYS_RND_DIST_SKIP, Mesh::totface_legacy, ParticleThreadContext::tree, MFace::v1, MFace::v2, MFace::v3, MFace::v4, Mesh::verts_num, w(), and zero_v4().

Referenced by exec_distribute_parent().

distribute_from_volume_exec()

static void distribute_from_volume_exec ( ParticleTask * thread, ParticleData * pa, int p )

static

Definition at line 568 of file particle_distribute.cc.

References BLI_assert, BLI_rng_get_float(), BLI_rng_skip(), CD_MFACE, CustomData_get_layer_for_write(), ParticleThreadContext::distr, FLT_MAX, fmod(), ParticleData::foffset, ParticleData::fuv, ParticleThreadContext::index, intersect(), isect_ray_tri_v3(), ParticleThreadContext::jit, ParticleThreadContext::jitlevel, ParticleThreadContext::jitoff, ParticleThreadContext::mesh, negate_v3(), nor, normalize_v3(), ParticleData::num, PART_DISTR_JIT, PART_DISTR_RAND, psys_interpolate_face(), PSYS_RND_DIST_SKIP, psys_uv_to_w(), MFace::v1, MFace::v2, v2, MFace::v3, and MFace::v4.

Referenced by exec_distribute_parent().

distribute_grid()

static void distribute_grid ( Mesh * mesh, ParticleSystem * psys )

static

Definition at line 95 of file particle_distribute.cc.

References axis_dominant_v3_single(), CD_MFACE, ceil(), copy_v3_v3(), CustomData_get_layer_for_write(), ELEM, flag, ParticleData::flag, ParticleSettings::flag, float, ParticleSettings::from, ParticleData::fuv, ParticleSettings::grid_rand, ParticleSettings::grid_res, ParticleData::hair_index, INIT_MINMAX, int, isect_ray_tri_watertight_v3(), isect_ray_tri_watertight_v3_precalc(), min, minmax_v3v3_v3(), PARS_UNEXIST, ParticleSystem::part, PART_FROM_FACE, PART_FROM_VERT, PART_FROM_VOLUME, PART_GRID_HEXAGONAL, PART_GRID_INVERT, ParticleSystem::particles, psys_frand(), sub_v3_v3v3(), ParticleSystem::totpart, MFace::v1, MFace::v2, v2, MFace::v3, MFace::v4, and zero_v3().

Referenced by psys_thread_context_init_distribute().

distribute_invalid()

static void distribute_invalid ( ParticleSimulationData * sim, int from )

static

Definition at line 852 of file particle_distribute.cc.

References ParticleSystem::child, DAG_EVAL_RENDER, DEG_get_mode(), ParticleSimulationData::depsgraph, ChildParticle::foffset, ChildParticle::fuv, LOOP_PARTICLES, ChildParticle::num, ChildParticle::pa, ChildParticle::parent, PART_FROM_CHILD, PARTICLE_P, ParticleSimulationData::psys, psys_get_tot_child(), and ParticleSimulationData::scene.

Referenced by distribute_particles(), distribute_particles_on_shape(), and psys_thread_context_init_distribute().

distribute_particles()

void distribute_particles	(	ParticleSimulationData *	sim,
		int	from )

Definition at line 1394 of file particle_distribute.cc.

References distribute_invalid(), distribute_particles_on_dm(), distribute_particles_on_shape(), and PARTICLE_PSMD.

Referenced by particle_system_update(), psys_update_path_cache(), system_step(), and update_children().

distribute_particles_on_dm()

static void distribute_particles_on_dm ( ParticleSimulationData * sim, int from )

static

Definition at line 1343 of file particle_distribute.cc.

References BKE_id_free(), BLI_task_pool_create(), BLI_task_pool_free(), BLI_task_pool_push(), BLI_task_pool_work_and_wait(), exec_distribute_child(), exec_distribute_parent(), ParticleThreadContext::mesh, ParticleSystemModifierData::mesh_final, ParticleSystemModifierData::mesh_original, ParticleSimulationData::ob, PART_FROM_CHILD, ParticleSimulationData::psmd, ParticleSimulationData::psys, psys_calc_dmcache(), psys_task_init_distribute(), psys_tasks_create(), psys_tasks_free(), psys_thread_context_free(), psys_thread_context_init_distribute(), task_pool, TASK_PRIORITY_HIGH, ParticleSystem::totchild, and ParticleSystem::totpart.

Referenced by distribute_particles().

distribute_particles_on_shape()

static void distribute_particles_on_shape ( ParticleSimulationData * sim, int  )

static

Definition at line 1387 of file particle_distribute.cc.

References distribute_invalid().

Referenced by distribute_particles().

distribute_simple_children()

static void distribute_simple_children ( Scene * scene, Object * ob, Mesh * final_mesh, Mesh * deform_mesh, ParticleSystem * psys, const bool use_render_params )

static

Definition at line 58 of file particle_distribute.cc.

References alloc_child_particles(), BLI_rng_free(), BLI_rng_get_float(), BLI_rng_new_srandom(), ParticleSystem::child, ParticleSystem::child_seed, ChildParticle::fuv, len_v3(), ChildParticle::num, ChildParticle::parent, psys_calc_dmcache(), psys_get_child_number(), psys_get_tot_child(), ParticleSystem::seed, and ParticleSystem::totpart.

Referenced by psys_thread_context_init_distribute().

exec_distribute_child()

static void exec_distribute_child ( TaskPool * __restrict, void * taskdata )

static

Definition at line 809 of file particle_distribute.cc.

References BLI_rng_skip(), ParticleSystem::child, distribute_children_exec(), and PSYS_RND_DIST_SKIP.

Referenced by distribute_particles_on_dm().

exec_distribute_parent()

static void exec_distribute_parent ( TaskPool * __restrict, void * taskdata )

static

Definition at line 780 of file particle_distribute.cc.

References BLI_rng_skip(), distribute_from_faces_exec(), distribute_from_verts_exec(), distribute_from_volume_exec(), ParticleSettings::from, ParticleSystem::part, PART_FROM_FACE, PART_FROM_VERT, PART_FROM_VOLUME, ParticleSystem::particles, and PSYS_RND_DIST_SKIP.

Referenced by distribute_particles_on_dm().

hammersley_create()

static void hammersley_create ( float * out, int n, int seed, float amount )

static

Definition at line 318 of file particle_distribute.cc.

References BLI_hammersley_1d(), BLI_rng_free(), BLI_rng_get_double(), BLI_rng_new(), double(), fmod(), and seed.

Referenced by psys_thread_context_init_distribute().

init_mv_jit()

static void init_mv_jit ( float * jit, int num, int seed2, float amount )

static

Definition at line 340 of file particle_distribute.cc.

References BLI_jitterate1(), BLI_jitterate2(), BLI_rng_free(), BLI_rng_get_float(), BLI_rng_new(), float, floor(), jit, MEM_freeN(), MEM_mallocN, sqrtf, and x.

Referenced by psys_thread_context_init_distribute().

psys_task_init_distribute()

static void psys_task_init_distribute ( ParticleTask * task, ParticleSimulationData * sim )

static

Definition at line 1335 of file particle_distribute.cc.

References BLI_rng_new(), ParticleSimulationData::psys, ParticleSystem::seed, and seed.

Referenced by distribute_particles_on_dm().

psys_thread_context_init_distribute()

static int psys_thread_context_init_distribute ( ParticleThreadContext * ctx, ParticleSimulationData * sim, int from )

static

Definition at line 884 of file particle_distribute.cc.

References alloc_child_particles(), area_quad_v3(), area_tri_v3(), BKE_id_copy_ex(), BKE_id_free(), BKE_mesh_orco_ensure(), BKE_mesh_orco_verts_transform(), BKE_mesh_tessface_ensure(), BKE_mesh_texspace_ensure(), BLI_array_randomize(), BLI_assert, BLI_qsort_r(), BLI_rng_free(), BLI_rng_get_float(), BLI_rng_new_srandom(), CD_MFACE, CD_ORCO, CD_ORIGINDEX, ParticleThreadContext::cfrom, ParticleSystem::child_seed, copy_v3_v3(), CustomData_get_layer(), CustomData_get_layer_for_write(), DAG_EVAL_RENDER, Object::data, DEG_get_mode(), ParticleSimulationData::depsgraph, ParticleThreadContext::distr, distribute_binary_search(), distribute_compare_orig_index(), distribute_grid(), distribute_invalid(), distribute_simple_children(), double(), ELEM, Mesh::fdata_legacy, float, ParticleData::foffset, ParticleData::fuv, G, G_DEBUG, hammersley_create(), ParticleThreadContext::index, init_mv_jit(), jit, ParticleThreadContext::jit, ParticleThreadContext::jitlevel, ParticleThreadContext::jitoff, LIB_ID_COPY_LOCALIZE, ParticleThreadContext::maxweight, MEM_callocN, MEM_freeN(), MEM_mallocN, mesh, ParticleThreadContext::mesh, ParticleSystemModifierData::mesh_final, ParticleSystemModifierData::mesh_original, min, nor, ParticleData::num, ParticleData::num_dmcache, ParticleSimulationData::ob, ParticleSystem::part, PART_CHILD_FACES, PART_DISTR_GRID, PART_DISTR_JIT, PART_DISTR_RAND, PART_EDISTR, PART_FROM_CHILD, PART_FROM_FACE, PART_FROM_VERT, PART_FROM_VOLUME, PART_HAIR, PART_TRAND, ParticleSystem::particles, pos, printf, ParticleSimulationData::psmd, ParticleSimulationData::psys, psys_cache_vgroup(), psys_get_tot_child(), psys_particle_on_dm(), psys_thread_context_init(), PSYS_VG_DENSITY, Mesh::runtime, ParticleSimulationData::scene, ParticleThreadContext::seams, ParticleSystem::seed, ParticleThreadContext::sim, ParticleSystem::totpart, ParticleThreadContext::totseam, ParticleThreadContext::tpars, ParticleThreadContext::tree, tree, ParticleSettings::use_modifier_stack, MFace::v1, MFace::v2, MFace::v3, MFace::v4, and ParticleThreadContext::weight.

Referenced by distribute_particles_on_dm().

psys_uv_to_w()

static void psys_uv_to_w ( float u, float v, int quad, float * w )

static

Definition at line 380 of file particle_distribute.cc.

References interp_weights_poly_v3(), quad, v, and w().

Referenced by distribute_children_exec(), distribute_from_faces_exec(), and distribute_from_volume_exec().