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Differential D10300 Diff 33525 source/blender/blenkernel/intern/effect.c

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source/blender/blenkernel/intern/effect.c

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void BKE_effector_relations_free(ListBase *lb) void BKE_effector_relations_free(ListBase *lb)
{ {
if (lb) { if (lb) {
BLI_freelistN(lb); BLI_freelistN(lb);
MEM_freeN(lb); MEM_freeN(lb);
} }
} }
/* Check that the force field isn't disabled via its flags. */
static bool is_effector_enabled(PartDeflect *pd, bool use_rotation)
{
switch (pd->forcefield) {
case PFIELD_BOID:
case PFIELD_GUIDE:
return true;
case PFIELD_TEXTURE:
return (pd->flag & PFIELD_DO_LOCATION) != 0 && pd->tex != NULL;
default:
if (use_rotation) {
return (pd->flag & (PFIELD_DO_LOCATION | PFIELD_DO_ROTATION)) != 0;
}
else {
return (pd->flag & PFIELD_DO_LOCATION) != 0;
}
}
}
/* Check that the force field won't have zero effect due to strength settings. */
static bool is_effector_nonzero_strength(PartDeflect *pd)
{
if (pd->f_strength != 0.0f) {
return true;
}
if (pd->forcefield == PFIELD_TEXTURE) {
return false;
}
if (pd->f_noise > 0.0f || pd->f_flow != 0.0f) {
return true;
}
switch (pd->forcefield) {
case PFIELD_BOID:
case PFIELD_GUIDE:
return true;
case PFIELD_VORTEX:
return pd->shape != PFIELD_SHAPE_POINT;
case PFIELD_DRAG:
return pd->f_damp != 0.0f;
default:
return false;
}
}
/* Check if the force field will affect its user. */
static bool is_effector_relevant(PartDeflect *pd, EffectorWeights *weights, bool use_rotation)
{
return (weights->weight[pd->forcefield] != 0.0f) && is_effector_enabled(pd, use_rotation) &&
is_effector_nonzero_strength(pd);
}
/* Create effective list of effectors from relations built beforehand. */ /* Create effective list of effectors from relations built beforehand. */
ListBase *BKE_effectors_create(Depsgraph *depsgraph, ListBase *BKE_effectors_create(Depsgraph *depsgraph,
Object *ob_src, Object *ob_src,
ParticleSystem *psys_src, ParticleSystem *psys_src,
EffectorWeights *weights) EffectorWeights *weights,
bool use_rotation)
{ {
Scene *scene = DEG_get_evaluated_scene(depsgraph); Scene *scene = DEG_get_evaluated_scene(depsgraph);
ListBase *relations = DEG_get_effector_relations(depsgraph, weights->group); ListBase *relations = DEG_get_effector_relations(depsgraph, weights->group);
ListBase *effectors = NULL; ListBase *effectors = NULL;
if (!relations) { if (!relations) {
return NULL; return NULL;
} }
LISTBASE_FOREACH (EffectorRelation *, relation, relations) { LISTBASE_FOREACH (EffectorRelation *, relation, relations) {
/* Get evaluated object. */ /* Get evaluated object. */
Object *ob = (Object *)DEG_get_evaluated_id(depsgraph, &relation->ob->id); Object *ob = (Object *)DEG_get_evaluated_id(depsgraph, &relation->ob->id);
if (relation->psys) { if (relation->psys) {
/* Get evaluated particle system. */ /* Get evaluated particle system. */
ParticleSystem *psys = BLI_findstring( ParticleSystem *psys = BLI_findstring(
&ob->particlesystem, relation->psys->name, offsetof(ParticleSystem, name)); &ob->particlesystem, relation->psys->name, offsetof(ParticleSystem, name));
ParticleSettings *part = psys->part; ParticleSettings *part = psys->part;
if (psys == psys_src && (part->flag & PART_SELF_EFFECT) == 0) { if (psys == psys_src && (part->flag & PART_SELF_EFFECT) == 0) {
continue; continue;
} }
PartDeflect *pd = (relation->pd == relation->psys->part->pd) ? part->pd : part->pd2; PartDeflect *pd = (relation->pd == relation->psys->part->pd) ? part->pd : part->pd2;
if (weights->weight[pd->forcefield] == 0.0f) {
if (!is_effector_relevant(pd, weights, use_rotation)) {
continue; continue;
} }
add_effector_evaluation(&effectors, depsgraph, scene, ob, psys, pd); add_effector_evaluation(&effectors, depsgraph, scene, ob, psys, pd);
} }
else { else {
/* Object effector. */ /* Object effector. */
if (ob == ob_src) { if (ob == ob_src) {
continue; continue;
} }
if (weights->weight[ob->pd->forcefield] == 0.0f) { if (!is_effector_relevant(ob->pd, weights, use_rotation)) {
continue; continue;
} }
if (ob->pd->shape == PFIELD_SHAPE_POINTS && BKE_object_get_evaluated_mesh(ob) == NULL) { if (ob->pd->shape == PFIELD_SHAPE_POINTS && BKE_object_get_evaluated_mesh(ob) == NULL) {
continue; continue;
} }
add_effector_evaluation(&effectors, depsgraph, scene, ob, NULL, ob->pd); add_effector_evaluation(&effectors, depsgraph, scene, ob, NULL, ob->pd);
} }
▲ Show 20 Lines • Show All 576 Lines • ▼ Show 20 Lines else {
zero_v3(force); zero_v3(force);
} }
if (eff->pd->flag & PFIELD_TEX_2D) { if (eff->pd->flag & PFIELD_TEX_2D) {
float fac = -dot_v3v3(force, efd->nor); float fac = -dot_v3v3(force, efd->nor);
madd_v3_v3fl(force, efd->nor, fac); madd_v3_v3fl(force, efd->nor, fac);
} }
if (eff->pd->flag & PFIELD_DO_LOCATION) {
add_v3_v3(total_force, force); add_v3_v3(total_force, force);
} }
}
static void do_physical_effector(EffectorCache *eff, static void do_physical_effector(EffectorCache *eff,
EffectorData *efd, EffectorData *efd,
EffectedPoint *point, EffectedPoint *point,
float *total_force) float *total_force)
{ {
PartDeflect *pd = eff->pd; PartDeflect *pd = eff->pd;
RNG *rng = pd->rng; RNG *rng = pd->rng;
float force[3] = {0, 0, 0}; float force[3] = {0, 0, 0};
float temp[3]; float temp[3];
float fac; float fac;
float strength = pd->f_strength; float strength = pd->f_strength;
float damp = pd->f_damp; float damp = pd->f_damp;
float noise_factor = pd->f_noise; float noise_factor = pd->f_noise;
float flow_falloff = efd->falloff;
if (noise_factor > 0.0f) { if (noise_factor > 0.0f) {
strength += wind_func(rng, noise_factor); strength += wind_func(rng, noise_factor);
if (ELEM(pd->forcefield, PFIELD_HARMONIC, PFIELD_DRAG)) { if (ELEM(pd->forcefield, PFIELD_HARMONIC, PFIELD_DRAG)) {
damp += wind_func(rng, noise_factor); damp += wind_func(rng, noise_factor);
} }
} }
▲ Show 20 Lines • Show All 93 Lines • ▼ Show 20 Lines case PFIELD_DRAG:
strength = MIN2(strength, 2.0f); strength = MIN2(strength, 2.0f);
damp = MIN2(damp, 2.0f); damp = MIN2(damp, 2.0f);
mul_v3_fl(force, -efd->falloff * fac * (strength * fac + damp)); mul_v3_fl(force, -efd->falloff * fac * (strength * fac + damp));
break; break;
case PFIELD_FLUIDFLOW: case PFIELD_FLUIDFLOW:
zero_v3(force); zero_v3(force);
flow_falloff = 0;
#ifdef WITH_FLUID #ifdef WITH_FLUID
if (pd->f_source) { if (pd->f_source) {
float density; float density;
if ((density = BKE_fluid_get_velocity_at(pd->f_source, point->loc, force)) >= 0.0f) { if ((density = BKE_fluid_get_velocity_at(pd->f_source, point->loc, force)) >= 0.0f) {
float influence = strength * efd->falloff; float influence = strength * efd->falloff;
if (pd->flag & PFIELD_SMOKE_DENSITY) { if (pd->flag & PFIELD_SMOKE_DENSITY) {
influence *= density; influence *= density;
} }
mul_v3_fl(force, influence); mul_v3_fl(force, influence);
/* apply flow */ flow_falloff = influence;
madd_v3_v3fl(total_force, point->vel, -pd->f_flow * influence);
} }
} }
#endif #endif
break; break;
} }
if (pd->flag & PFIELD_DO_LOCATION) { if (pd->flag & PFIELD_DO_LOCATION) {
madd_v3_v3fl(total_force, force, 1.0f / point->vel_to_sec); madd_v3_v3fl(total_force, force, 1.0f / point->vel_to_sec);
if (ELEM(pd->forcefield, PFIELD_HARMONIC, PFIELD_DRAG, PFIELD_FLUIDFLOW) == 0 && if (!ELEM(pd->forcefield, PFIELD_HARMONIC, PFIELD_DRAG) && pd->f_flow != 0.0f) {
pd->f_flow != 0.0f) { madd_v3_v3fl(total_force, point->vel, -pd->f_flow * flow_falloff);
madd_v3_v3fl(total_force, point->vel, -pd->f_flow * efd->falloff);
} }
} }
if (pd->flag & PFIELD_DO_ROTATION && point->ave && point->rot) { if (pd->flag & PFIELD_DO_ROTATION && point->ave && point->rot) {
float xvec[3] = {1.0f, 0.0f, 0.0f}; float xvec[3] = {1.0f, 0.0f, 0.0f};
float dave[3]; float dave[3];
mul_qt_v3(point->rot, xvec); mul_qt_v3(point->rot, xvec);
cross_v3_v3v3(dave, xvec, force); cross_v3_v3v3(dave, xvec, force);
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