particle_child.cc File Reference

#include "BLI_math_matrix.h"
#include "BLI_math_rotation.h"
#include "BLI_math_vector.h"
#include "BLI_noise.h"
#include "DNA_material_types.h"
#include "DNA_object_types.h"
#include "BKE_colortools.hh"
#include "BKE_particle.h"
#include "particle_private.h"

Go to the source code of this file.

Classes
struct	ParticlePathIterator

Functions
static void	psys_path_iter_get (ParticlePathIterator *iter, ParticleCacheKey *keys, int totkeys, ParticleCacheKey *parent, int index)
static void	do_kink_spiral_deform (ParticleKey *state, const float dir[3], const float kink[3], float time, float freq, float shape, float amplitude, const float spiral_start[3])
static void	do_kink_spiral (ParticleThreadContext *ctx, ParticleTexture *ptex, const float parent_orco[3], ChildParticle *cpa, const float orco[3], float hairmat[4][4], ParticleCacheKey *keys, ParticleCacheKey *parent_keys, int *r_totkeys, float *r_max_length)
static bool	check_path_length (int k, ParticleCacheKey *keys, ParticleCacheKey *key, float max_length, float step_length, float *cur_length, float dvec[3])
void	psys_apply_child_modifiers (ParticleThreadContext *ctx, ListBase *, ChildParticle *cpa, ParticleTexture *ptex, const float orco[3], float hairmat[4][4], ParticleCacheKey *keys, ParticleCacheKey *parent_keys, const float parent_orco[3])
void	do_kink (ParticleKey *state, const float par_co[3], const float par_vel[3], const float par_rot[4], float time, float freq, float shape, float amplitude, float flat, short type, short axis, const float obmat[4][4], int smooth_start)
static float	do_clump_level (float result[3], const float co[3], const float par_co[3], float time, float clumpfac, float clumppow, float pa_clump, const CurveMapping *clumpcurve)
float	do_clump (ParticleKey *state, const float par_co[3], float time, const float orco_offset[3], float clumpfac, float clumppow, float pa_clump, bool use_clump_noise, float clump_noise_size, const CurveMapping *clumpcurve)
static void	do_rough (const float loc[3], const float mat[4][4], float t, float fac, float size, float thres, ParticleKey *state)
static void	do_rough_end (const float loc[3], const float mat[4][4], float t, float fac, float shape, ParticleKey *state)
static void	do_rough_curve (const float loc[3], const float mat[4][4], float time, float fac, float size, CurveMapping *roughcurve, ParticleKey *state)
static int	twist_num_segments (const ParticleChildModifierContext *modifier_ctx)
static void	twist_get_axis (const ParticleChildModifierContext *modifier_ctx, const float time, float r_axis[3])
static float	BKE_curvemapping_integrate_clamped (const CurveMapping *curve, float start, float end, float step)
static void	do_twist (const ParticleChildModifierContext *modifier_ctx, ParticleKey *state, const float time)
void	do_child_modifiers (const ParticleChildModifierContext *modifier_ctx, float mat[4][4], ParticleKey *state, float t)

Function Documentation

BKE_curvemapping_integrate_clamped()

static float BKE_curvemapping_integrate_clamped ( const CurveMapping * curve, float start, float end, float step )

static

Definition at line 729 of file particle_child.cc.

References BKE_curvemapping_evaluateF(), and clamp_f().

Referenced by do_twist().

check_path_length()

static bool check_path_length ( int k, ParticleCacheKey * keys, ParticleCacheKey * key, float max_length, float step_length, float * cur_length, float dvec[3] )

static

Definition at line 266 of file particle_child.cc.

References add_v3_v3v3(), ParticleCacheKey::co, mul_v3_fl(), ParticleCacheKey::segments, and sub_v3_v3v3().

Referenced by psys_apply_child_modifiers().

do_child_modifiers()

void do_child_modifiers	(	const ParticleChildModifierContext *	modifier_ctx,
		float	mat[4][4],
		ParticleKey *	state,
		float	t )

Definition at line 796 of file particle_child.cc.

References ParticleSystem::child, ParticleSettings::childtype, ParticleTexture::clump, ParticleThreadContext::clumpcurve, ParticleChildModifierContext::cpa, ParticleSimulationData::depsgraph, do_clump(), do_guides(), do_kink(), do_rough(), do_rough_curve(), do_rough_end(), do_twist(), ParticleSystem::effectors, ParticleTexture::kink_amp, ParticleTexture::kink_freq, ParticleSimulationData::ob, ParticleChildModifierContext::orco, ParticleChildModifierContext::par_co, ParticleChildModifierContext::par_orco, ParticleChildModifierContext::par_rot, ParticleChildModifierContext::par_vel, ChildParticle::parent, ParticleSystem::part, PART_CHILD_EFFECT, PART_CHILD_FACES, PART_CHILD_USE_CLUMP_CURVE, PART_CHILD_USE_CLUMP_NOISE, PART_CHILD_USE_ROUGH_CURVE, ParticleSimulationData::psys, psys_frand_vec(), ParticleChildModifierContext::ptex, ParticleTexture::rough1, ParticleTexture::rough2, ParticleThreadContext::roughcurve, ParticleTexture::roughe, ParticleChildModifierContext::sim, state, sub_v3_v3v3(), and ParticleChildModifierContext::thread_ctx.

Referenced by do_kink_spiral(), psys_apply_child_modifiers(), psys_get_particle_on_path(), and psys_get_particle_state().

do_clump()

float do_clump	(	ParticleKey *	state,
		const float	par_co[3],
		float	time,
		const float	orco_offset[3],
		float	clumpfac,
		float	clumppow,
		float	pa_clump,
		bool	use_clump_noise,
		float	clump_noise_size,
		const CurveMapping *	clumpcurve )

Definition at line 598 of file particle_child.cc.

References add_v3_v3v3(), BLI_noise_voronoi(), do_clump_level(), mul_v3_fl(), mul_v3_v3fl(), and state.

Referenced by do_child_modifiers(), and do_guides().

do_clump_level()

static float do_clump_level ( float result[3], const float co[3], const float par_co[3], float time, float clumpfac, float clumppow, float pa_clump, const CurveMapping * clumpcurve )

static

Definition at line 558 of file particle_child.cc.

References BKE_curvemapping_evaluateF(), clamp_f(), float, interp_v3_v3v3(), and pow().

Referenced by do_clump().

do_kink()

void do_kink	(	ParticleKey *	state,
		const float	par_co[3],
		const float	par_vel[3],
		const float	par_rot[4],
		float	time,
		float	freq,
		float	shape,
		float	amplitude,
		float	flat,
		short	type,
		short	axis,
		const float	obmat[4][4],
		int	smooth_start )

Definition at line 385 of file particle_child.cc.

References add_v3_v3(), add_v3_v3v3(), axis_angle_to_quat(), CLAMP, copy_v3_v3(), cosf, dot_v3v3(), ELEM, fabsf, float, interp_v3_v3v3(), length(), M_PI, madd_v3_v3fl(), mul_mat3_m4_v3(), mul_qt_v3(), mul_v3_fl(), mul_v3_v3fl(), negate_v3(), normalize_v3(), normalize_v3_v3(), PART_KINK_BRAID, PART_KINK_CURL, PART_KINK_NO, PART_KINK_RADIAL, PART_KINK_SPIRAL, PART_KINK_WAVE, pow(), project_v3_v3v3(), q1, sinf, sqrt(), state, sub_v3_v3(), and sub_v3_v3v3().

Referenced by do_child_modifiers(), and do_guides().

do_kink_spiral()

static void do_kink_spiral ( ParticleThreadContext * ctx, ParticleTexture * ptex, const float parent_orco[3], ChildParticle * cpa, const float orco[3], float hairmat[4][4], ParticleCacheKey * keys, ParticleCacheKey * parent_keys, int * r_totkeys, float * r_max_length )

static

Definition at line 120 of file particle_child.cc.

References axis_angle_normalized_to_mat3(), ParticleSystem::child, ParticleSystem::child_seed, ParticleCacheKey::co, ParticleChildModifierContext::cpa, do_child_modifiers(), do_kink_spiral_deform(), ParticleThreadContext::extra_segments, float, int, interp_qt_qtqt(), interp_v3_v3v3(), ParticleTexture::kink_amp, ParticleTexture::kink_freq, len_v3v3(), ParticleTexture::length, M_PI, mul_m3_v3(), mul_mat3_m4_v3(), normalize_v3(), ParticleSimulationData::ob, ParticleChildModifierContext::orco, ParticleChildModifierContext::par_co, ParticleChildModifierContext::par_orco, ParticleChildModifierContext::par_rot, ParticleChildModifierContext::par_vel, ParticleChildModifierContext::parent_keys, ParticleSystem::part, project_v3_v3v3(), ParticleSimulationData::psys, psys_frand(), psys_path_iter_get(), ParticleChildModifierContext::ptex, ParticleCacheKey::rot, rot, seed, ParticleThreadContext::segments, ParticleChildModifierContext::sim, ParticleThreadContext::sim, sub_v3_v3v3(), ParticleChildModifierContext::thread_ctx, ParticleCacheKey::vel, and zero_v3().

Referenced by psys_apply_child_modifiers().

do_kink_spiral_deform()

static void do_kink_spiral_deform ( ParticleKey * state, const float dir[3], const float kink[3], float time, float freq, float shape, float amplitude, const float spiral_start[3] )

static

Definition at line 62 of file particle_child.cc.

References add_v3_v3v3(), atanf, axis_angle_normalized_to_mat3(), b, CLAMP, copy_v3_v3(), cross_v3_v3v3(), expf, float, M_PI, M_PI_2, madd_v3_v3fl(), mul_m3_v3(), mul_v3_v3fl(), normalize_v3(), rot, sqrtf, and state.

Referenced by do_kink_spiral().

do_rough()

static void do_rough ( const float loc[3], const float mat[4][4], float t, float fac, float size, float thres, ParticleKey * state )

static

Definition at line 629 of file particle_child.cc.

References BLI_noise_generic_turbulence(), copy_v3_v3(), fabsf, madd_v3_v3fl(), mul_v3_fl(), and state.

Referenced by do_child_modifiers().

do_rough_curve()

static void do_rough_curve ( const float loc[3], const float mat[4][4], float time, float fac, float size, CurveMapping * roughcurve, ParticleKey * state )

static

Definition at line 676 of file particle_child.cc.

References BKE_curvemapping_evaluateF(), BLI_noise_generic_turbulence(), clamp_f(), copy_v3_v3(), madd_v3_v3fl(), mul_v3_fl(), and state.

Referenced by do_child_modifiers().

do_rough_end()

static void do_rough_end ( const float loc[3], const float mat[4][4], float t, float fac, float shape, ParticleKey * state )

static

Definition at line 660 of file particle_child.cc.

References copy_v2_v2(), float, madd_v3_v3fl(), mul_v2_fl(), pow(), and state.

Referenced by do_child_modifiers().

do_twist()

static void do_twist ( const ParticleChildModifierContext * modifier_ctx, ParticleKey * state, const float time )

static

Definition at line 746 of file particle_child.cc.

References add_v3_v3(), BKE_curvemapping_integrate_clamped(), M_PI, ParticleChildModifierContext::par_co, ParticleChildModifierContext::parent_keys, ParticleSystem::part, PART_CHILD_PARTICLES, PART_CHILD_USE_TWIST_CURVE, ParticleSimulationData::psys, ParticleChildModifierContext::ptex, rotate_v3_v3v3fl(), ParticleChildModifierContext::sim, state, sub_v3_v3v3(), ParticleChildModifierContext::thread_ctx, time, ParticleTexture::twist, twist_get_axis(), twist_num_segments(), and ParticleThreadContext::twistcurve.

Referenced by do_child_modifiers().

psys_apply_child_modifiers()

void psys_apply_child_modifiers	(	ParticleThreadContext *	ctx,
		ListBase *	modifiers,
		ChildParticle *	cpa,
		ParticleTexture *	ptex,
		const float	orco[3],
		float	hairmat[4][4],
		ParticleCacheKey *	keys,
		ParticleCacheKey *	parent_keys,
		const float	parent_orco[3] )

Definition at line 287 of file particle_child.cc.

References check_path_length(), ParticleCacheKey::co, ParticleKey::co, ParticleCacheKey::col, copy_v3_v3(), ParticleChildModifierContext::cpa, do_child_modifiers(), do_kink_spiral(), ELEM, float, ParticleTexture::length, ParticleThreadContext::ma, mul_v3_fl(), ParticleChildModifierContext::orco, ParticleChildModifierContext::par_co, ParticleChildModifierContext::par_orco, ParticleChildModifierContext::par_rot, ParticleChildModifierContext::par_vel, ParticlePathIterator::parent_key, ParticleChildModifierContext::parent_keys, ParticlePathIterator::parent_rotation, ParticleSystem::part, PART_DRAW_COL_MAT, PART_KINK_SPIRAL, ParticleSimulationData::psys, psys_path_iter_get(), ParticleChildModifierContext::ptex, Material::r, ParticleCacheKey::segments, ParticleThreadContext::segments, ParticleChildModifierContext::sim, ParticleThreadContext::sim, sub_v3_v3v3(), ParticleChildModifierContext::thread_ctx, ParticlePathIterator::time, ParticleCacheKey::vel, and ParticleKey::vel.

Referenced by psys_thread_create_path().

psys_path_iter_get()

static void psys_path_iter_get ( ParticlePathIterator * iter, ParticleCacheKey * keys, int totkeys, ParticleCacheKey * parent, int index )

static

Definition at line 33 of file particle_child.cc.

References BLI_assert, copy_qt_qt(), float, ParticlePathIterator::index, ParticlePathIterator::key, mul_qt_qtqt(), ParticlePathIterator::parent_key, ParticlePathIterator::parent_rotation, ParticleCacheKey::rot, ParticlePathIterator::time, and unit_qt().

Referenced by do_kink_spiral(), and psys_apply_child_modifiers().

twist_get_axis()

static void twist_get_axis ( const ParticleChildModifierContext * modifier_ctx, const float time, float r_axis[3] )

static

Definition at line 713 of file particle_child.cc.

References clamp_i(), ParticleCacheKey::co, ParticleChildModifierContext::parent_keys, sub_v3_v3v3(), and twist_num_segments().

Referenced by do_twist().

twist_num_segments()

static int twist_num_segments ( const ParticleChildModifierContext * modifier_ctx )

static

Definition at line 707 of file particle_child.cc.

References ParticleSettings::draw_step, ParticleSystem::part, ParticleSimulationData::psys, ParticleThreadContext::segments, ParticleChildModifierContext::sim, and ParticleChildModifierContext::thread_ctx.

Referenced by do_twist(), and twist_get_axis().