diff options
Diffstat (limited to 'source/blender/blenkernel/intern/particle.c')
| -rw-r--r-- | source/blender/blenkernel/intern/particle.c | 1133 |
1 files changed, 640 insertions, 493 deletions
diff --git a/source/blender/blenkernel/intern/particle.c b/source/blender/blenkernel/intern/particle.c index ab7f68dedd0..8e0e948f0a4 100644 --- a/source/blender/blenkernel/intern/particle.c +++ b/source/blender/blenkernel/intern/particle.c @@ -81,6 +81,11 @@ static void key_from_object(Object *ob, ParticleKey *key); static void get_cpa_texture(DerivedMesh *dm, Material *ma, int face_index, float *fuv, float *orco, ParticleTexture *ptex, int event); +static void get_child_modifier_parameters(ParticleSettings *part, ParticleThreadContext *ctx, + ChildParticle *cpa, short cpa_from, int cpa_num, float *cpa_fuv, float *orco, ParticleTexture *ptex); +static void do_child_modifiers(Scene *scene, Object *ob, ParticleSystem *psys, ParticleSettings *part, + ParticleTexture *ptex, ParticleKey *par, float *par_rot, ChildParticle *cpa, + float *orco, float mat[4][4], ParticleKey *state, float t); /* few helpers for countall etc. */ int count_particles(ParticleSystem *psys){ @@ -222,6 +227,34 @@ short psys_get_current_num(Object *ob) return i; } +void psys_set_current_num(Object *ob, int index) +{ + ParticleSystem *psys; + short i; + + if(ob==0) return; + + for(psys=ob->particlesystem.first, i=0; psys; psys=psys->next, i++) { + if(i == index) + psys->flag |= PSYS_CURRENT; + else + psys->flag &= ~PSYS_CURRENT; + } +} +Object *psys_find_object(Scene *scene, ParticleSystem *psys) +{ + Base *base = scene->base.first; + ParticleSystem *tpsys; + + for(base = scene->base.first; base; base = base->next) { + for(tpsys = base->object->particlesystem.first; psys; psys=psys->next) { + if(tpsys == psys) + return base->object; + } + } + + return NULL; +} /* change object's active particle system */ void psys_change_act(void *ob_v, void *act_v) { @@ -293,7 +326,7 @@ int psys_check_enabled(Object *ob, ParticleSystem *psys) ParticleSystemModifierData *psmd; Mesh *me; - if(psys->flag & PSYS_DISABLED || psys->flag & PSYS_DELETE) + if(psys->flag & PSYS_DISABLED || psys->flag & PSYS_DELETE || !psys->part) return 0; if(ob->type == OB_MESH) { @@ -424,7 +457,7 @@ void psys_free(Object *ob, ParticleSystem * psys) for(tpsys=ob->particlesystem.first; tpsys; tpsys=tpsys->next){ if(tpsys->part) { - if(ELEM(tpsys->part->draw_as,PART_DRAW_OB,PART_DRAW_GR)) + if(ELEM(tpsys->part->ren_as,PART_DRAW_OB,PART_DRAW_GR)) { nr++; break; @@ -446,10 +479,16 @@ void psys_free(Object *ob, ParticleSystem * psys) if(psys->pointcache) BKE_ptcache_free(psys->pointcache); + if(psys->keyed_targets.first) + BLI_freelistN(&psys->keyed_targets); + MEM_freeN(psys); } } +/************************************************/ +/* Rendering */ +/************************************************/ /* these functions move away particle data and bring it back after * rendering, to make different render settings possible without * removing the previous data. this should be solved properly once */ @@ -463,6 +502,7 @@ typedef struct ParticleRenderData { ChildParticle *child; ParticleCacheKey **pathcache; ParticleCacheKey **childcache; + ListBase pathcachebufs, childcachebufs; int totchild, totcached, totchildcache; DerivedMesh *dm; int totdmvert, totdmedge, totdmface; @@ -549,8 +589,12 @@ void psys_render_set(Object *ob, ParticleSystem *psys, float viewmat[][4], float data->child= psys->child; data->totchild= psys->totchild; data->pathcache= psys->pathcache; + data->pathcachebufs.first = psys->pathcachebufs.first; + data->pathcachebufs.last = psys->pathcachebufs.last; data->totcached= psys->totcached; data->childcache= psys->childcache; + data->childcachebufs.first = psys->childcachebufs.first; + data->childcachebufs.last = psys->childcachebufs.last; data->totchildcache= psys->totchildcache; if(psmd->dm) @@ -563,6 +607,8 @@ void psys_render_set(Object *ob, ParticleSystem *psys, float viewmat[][4], float psys->pathcache= NULL; psys->childcache= NULL; psys->totchild= psys->totcached= psys->totchildcache= 0; + psys->pathcachebufs.first = psys->pathcachebufs.last = NULL; + psys->childcachebufs.first = psys->childcachebufs.last = NULL; Mat4CpyMat4(data->winmat, winmat); Mat4MulMat4(data->viewmat, ob->obmat, viewmat); @@ -603,8 +649,12 @@ void psys_render_restore(Object *ob, ParticleSystem *psys) psys->child= data->child; psys->totchild= data->totchild; psys->pathcache= data->pathcache; + psys->pathcachebufs.first = data->pathcachebufs.first; + psys->pathcachebufs.last = data->pathcachebufs.last; psys->totcached= data->totcached; psys->childcache= data->childcache; + psys->childcachebufs.first = data->childcachebufs.first; + psys->childcachebufs.last = data->childcachebufs.last; psys->totchildcache= data->totchildcache; psmd->dm= data->dm; @@ -635,7 +685,7 @@ int psys_render_simplify_distribution(ParticleThreadContext *ctx, int tot) int *origindex, *facetotvert; int a, b, totorigface, totface, newtot, skipped; - if(part->draw_as!=PART_DRAW_PATH || !(part->draw & PART_DRAW_REN_STRAND)) + if(part->ren_as!=PART_DRAW_PATH || !(part->draw & PART_DRAW_REN_STRAND)) return tot; if(!ctx->psys->renderdata) return tot; @@ -846,7 +896,7 @@ int psys_render_simplify_params(ParticleSystem *psys, ChildParticle *cpa, float } /************************************************/ -/* Interpolated Particles */ +/* Interpolation */ /************************************************/ static float interpolate_particle_value(float v1, float v2, float v3, float v4, float *w, int four) { @@ -864,7 +914,7 @@ static void weighted_particle_vector(float *v1, float *v2, float *v3, float *v4, vec[1]= weights[0]*v1[1] + weights[1]*v2[1] + weights[2]*v3[1] + weights[3]*v4[1]; vec[2]= weights[0]*v1[2] + weights[1]*v2[2] + weights[2]*v3[2] + weights[3]*v4[2]; } -static void interpolate_particle(short type, ParticleKey keys[4], float dt, ParticleKey *result, int velocity) +void psys_interpolate_particle(short type, ParticleKey keys[4], float dt, ParticleKey *result, int velocity) { float t[4]; @@ -895,6 +945,214 @@ static void interpolate_particle(short type, ParticleKey keys[4], float dt, Part +typedef struct ParticleInterpolationData { + ParticleKey *kkey[2]; + HairKey *hkey[2]; + BodyPoint *bp[2]; + SoftBody *soft; + int keyed, cached; + float birthtime, dietime; +} ParticleInterpolationData; +/* Assumes pointcache->mem_cache exists, so for disk cached particles call psys_make_temp_pointcache() before use */ +static void get_pointcache_keys_for_time(Object *ob, ParticleSystem *psys, int index, float t, ParticleKey *key1, ParticleKey *key2) +{ + PointCache *cache = psys->pointcache; + static PTCacheMem *pm = NULL; /* not thread safe */ + + if(index < 0) { /* initialize */ + pm = cache->mem_cache.first; + + if(pm) + pm = pm->next; + } + else { + if(pm) { + while(pm && pm->next && (float)pm->frame < t) + pm = pm->next; + + copy_particle_key(key2, ((ParticleKey *)pm->data) + index, 1); + copy_particle_key(key1, ((ParticleKey *)(pm->prev)->data) + index, 1); + } + else if(cache->mem_cache.first) { + PTCacheMem *pm2 = cache->mem_cache.first; + copy_particle_key(key2, ((ParticleKey *)pm2->data) + index, 1); + copy_particle_key(key1, ((ParticleKey *)pm2->data) + index, 1); + } + } +} +static void init_particle_interpolation(Object *ob, ParticleSystem *psys, ParticleData *pa, ParticleInterpolationData *pind) +{ + + if(pind->keyed) { + pind->kkey[0] = pa->keys; + + if(pa->totkey > 1) + pind->kkey[1] = pa->keys + 1; + else + pind->kkey[1] = NULL; + + pind->birthtime = pa->keys->time; + pind->dietime = (pa->keys + pa->totkey - 1)->time; + } + else if(pind->cached) { + get_pointcache_keys_for_time(ob, psys, -1, 0.0f, NULL, NULL); + + pind->birthtime = pa->time; + pind->dietime = pa->dietime; + } + else { + pind->hkey[0] = pa->hair; + pind->hkey[1] = pa->hair + 1; + + pind->birthtime = pa->hair->time; + pind->dietime = (pa->hair + pa->totkey - 1)->time; + } + + if(pind->soft) { + pind->bp[0] = pind->soft->bpoint + pa->bpi; + pind->bp[1] = pind->soft->bpoint + pa->bpi + 1; + } +} +static void hair_to_particle(ParticleKey *key, HairKey *hkey) +{ + VECCOPY(key->co, hkey->co); + key->time = hkey->time; +} +static void bp_to_particle(ParticleKey *key, BodyPoint *bp, HairKey *hkey) +{ + VECCOPY(key->co, bp->pos); + key->time = hkey->time; +} + +static void do_particle_interpolation(ParticleSystem *psys, int p, ParticleData *pa, float t, float frs_sec, ParticleInterpolationData *pind, ParticleKey *result) +{ + ParticleKey keys[4]; + float real_t, dfra, keytime; + + /* interpret timing and find keys */ + if(pind->keyed) { + /* we have only one key, so let's use that */ + if(pind->kkey[1]==NULL) { + copy_particle_key(result, pind->kkey[0], 1); + return; + } + + if(result->time < 0.0f) + real_t = -result->time; + else + real_t = pind->kkey[0]->time + t * (pind->kkey[0][pa->totkey-1].time - pind->kkey[0]->time); + + if(psys->part->phystype==PART_PHYS_KEYED && psys->flag & PSYS_KEYED_TIMING) { + KeyedParticleTarget *kpt = psys->keyed_targets.first; + + kpt=kpt->next; + + while(kpt && pa->time + kpt->time < real_t) + kpt= kpt->next; + + if(kpt) { + kpt=kpt->prev; + + if(pa->time + kpt->time + kpt->duration > real_t) + real_t = pa->time + kpt->time; + } + else + real_t = pa->time + ((KeyedParticleTarget*)psys->keyed_targets.last)->time; + } + + CLAMP(real_t, pa->time, pa->dietime); + + while(pind->kkey[1]->time < real_t) + pind->kkey[1]++; + + pind->kkey[0] = pind->kkey[1] - 1; + } + else if(pind->cached) { + if(result->time < 0.0f) /* flag for time in frames */ + real_t = -result->time; + else + real_t = pa->time + t * (pa->dietime - pa->time); + } + else { + if(result->time < 0.0f) + real_t = -result->time; + else + real_t = pind->hkey[0]->time + t * (pind->hkey[0][pa->totkey-1].time - pind->hkey[0]->time); + + while(pind->hkey[1]->time < real_t) { + pind->hkey[1]++; + pind->bp[1]++; + } + + pind->hkey[0] = pind->hkey[1] - 1; + } + + /* set actual interpolation keys */ + if(pind->soft) { + pind->bp[0] = pind->bp[1] - 1; + bp_to_particle(keys + 1, pind->bp[0], pind->hkey[0]); + bp_to_particle(keys + 2, pind->bp[1], pind->hkey[1]); + } + else if(pind->keyed) { + memcpy(keys + 1, pind->kkey[0], sizeof(ParticleKey)); + memcpy(keys + 2, pind->kkey[1], sizeof(ParticleKey)); + } + else if(pind->cached) { + get_pointcache_keys_for_time(NULL, psys, p, real_t, keys+1, keys+2); + } + else { + hair_to_particle(keys + 1, pind->hkey[0]); + hair_to_particle(keys + 2, pind->hkey[1]); + } + + /* set secondary interpolation keys for hair */ + if(!pind->keyed && !pind->cached) { + if(pind->soft) { + if(pind->hkey[0] != pa->hair) + bp_to_particle(keys, pind->bp[0] - 1, pind->hkey[0] - 1); + else + bp_to_particle(keys, pind->bp[0], pind->hkey[0]); + } + else { + if(pind->hkey[0] != pa->hair) + hair_to_particle(keys, pind->hkey[0] - 1); + else + hair_to_particle(keys, pind->hkey[0]); + } + + if(pind->soft) { + if(pind->hkey[1] != pa->hair + pa->totkey - 1) + bp_to_particle(keys + 3, pind->bp[1] + 1, pind->hkey[1] + 1); + else + bp_to_particle(keys + 3, pind->bp[1], pind->hkey[1]); + } + else { + if(pind->hkey[1] != pa->hair + pa->totkey - 1) + hair_to_particle(keys + 3, pind->hkey[1] + 1); + else + hair_to_particle(keys + 3, pind->hkey[1]); + } + } + + dfra = keys[2].time - keys[1].time; + keytime = (real_t - keys[1].time) / dfra; + + /* convert velocity to timestep size */ + if(pind->keyed || pind->cached){ + VecMulf(keys[1].vel, dfra / frs_sec); + VecMulf(keys[2].vel, dfra / frs_sec); + QuatInterpol(result->rot,keys[1].rot,keys[2].rot,keytime); + } + + /* now we should have in chronologiacl order k1<=k2<=t<=k3<=k4 with keytime between [0,1]->[k2,k3] (k1 & k4 used for cardinal & bspline interpolation)*/ + psys_interpolate_particle((pind->keyed || pind->cached) ? -1 /* signal for cubic interpolation */ + : ((psys->part->flag & PART_HAIR_BSPLINE) ? KEY_BSPLINE : KEY_CARDINAL) + ,keys, keytime, result, 1); + + /* the velocity needs to be converted back from cubic interpolation */ + if(pind->keyed || pind->cached) + VecMulf(result->vel, frs_sec / dfra); +} /************************************************/ /* Particles on a dm */ /************************************************/ @@ -1395,16 +1653,6 @@ void psys_particle_on_emitter(ParticleSystemModifierData *psmd, int from, int in /************************************************/ /* Path Cache */ /************************************************/ -static void hair_to_particle(ParticleKey *key, HairKey *hkey) -{ - VECCOPY(key->co, hkey->co); - key->time = hkey->time; -} -static void bp_to_particle(ParticleKey *key, BodyPoint *bp, HairKey *hkey) -{ - VECCOPY(key->co, bp->pos); - key->time = hkey->time; -} static float vert_weight(MDeformVert *dvert, int group) { MDeformWeight *dw; @@ -1691,7 +1939,7 @@ int do_guide(Scene *scene, ParticleKey *state, int pa_num, float time, ListBase } return 0; } -static void do_rough(float *loc, float t, float fac, float size, float thres, ParticleKey *state) +static void do_rough(float *loc, float mat[4][4], float t, float fac, float size, float thres, ParticleKey *state) { float rough[3]; float rco[3]; @@ -1704,32 +1952,24 @@ static void do_rough(float *loc, float t, float fac, float size, float thres, Pa rough[0]=-1.0f+2.0f*BLI_gTurbulence(size, rco[0], rco[1], rco[2], 2,0,2); rough[1]=-1.0f+2.0f*BLI_gTurbulence(size, rco[1], rco[2], rco[0], 2,0,2); rough[2]=-1.0f+2.0f*BLI_gTurbulence(size, rco[2], rco[0], rco[1], 2,0,2); - VECADDFAC(state->co,state->co,rough,fac); + + VECADDFAC(state->co,state->co,mat[0],fac*rough[0]); + VECADDFAC(state->co,state->co,mat[1],fac*rough[1]); + VECADDFAC(state->co,state->co,mat[2],fac*rough[2]); } -static void do_rough_end(float *loc, float t, float fac, float shape, ParticleKey *state, ParticleKey *par) +static void do_rough_end(float *loc, float mat[4][4], float t, float fac, float shape, ParticleKey *state) { - float rough[3], rnor[3]; + float rough[2]; float roughfac; roughfac=fac*(float)pow((double)t,shape); VECCOPY(rough,loc); rough[0]=-1.0f+2.0f*rough[0]; rough[1]=-1.0f+2.0f*rough[1]; - rough[2]=-1.0f+2.0f*rough[2]; VecMulf(rough,roughfac); - - if(par){ - VECCOPY(rnor,par->vel); - } - else{ - VECCOPY(rnor,state->vel); - } - Normalize(rnor); - Projf(rnor,rough,rnor); - VECSUB(rough,rough,rnor); - - VECADD(state->co,state->co,rough); + VECADDFAC(state->co,state->co,mat[0],rough[0]); + VECADDFAC(state->co,state->co,mat[1],rough[1]); } static void do_path_effectors(Scene *scene, Object *ob, ParticleSystem *psys, int i, ParticleCacheKey *ca, int k, int steps, float *rootco, float effector, float dfra, float cfra, float *length, float *vec) { @@ -1964,13 +2204,11 @@ void psys_thread_create_path(ParticleThread *thread, struct ChildParticle *cpa, ParticleData *pa=NULL; ParticleTexture ptex; float *cpa_fuv=0, *par_rot=0; - float co[3], orco[3], ornor[3], t, rough_t, cpa_1st[3], dvec[3]; - float branch_begin, branch_end, branch_prob, branchfac, rough_rand; - float pa_rough1, pa_rough2, pa_roughe; - float length, pa_length, pa_clump, pa_kink, pa_effector; - float max_length = 1.0f, cur_length = 0.0f; + float co[3], orco[3], ornor[3], hairmat[4][4], t, cpa_1st[3], dvec[3]; + float branch_begin, branch_end, branch_prob, rough_rand; + float length, max_length = 1.0f, cur_length = 0.0f; float eff_length, eff_vec[3]; - int k, cpa_num, guided = 0; + int k, cpa_num; short cpa_from; if(part->flag & PART_BRANCHING) { @@ -2024,16 +2262,20 @@ void psys_thread_create_path(ParticleThread *thread, struct ChildParticle *cpa, cpa_num = cpa->num; foffset= cpa->foffset; - if(part->childtype == PART_CHILD_FACES) - foffset = -(2.0f + part->childspread); cpa_fuv = cpa->fuv; cpa_from = PART_FROM_FACE; psys_particle_on_emitter(ctx->psmd,cpa_from,cpa_num,DMCACHE_ISCHILD,cpa->fuv,foffset,co,ornor,0,0,orco,0); - /* we need to save the actual root position of the child for positioning it accurately to the surface of the emitter */ - VECCOPY(cpa_1st,co); - Mat4MulVecfl(ob->obmat,cpa_1st); + if(part->path_start==0.0f) { + /* we need to save the actual root position of the child for positioning it accurately to the surface of the emitter */ + VECCOPY(cpa_1st,co); + Mat4MulVecfl(ob->obmat,cpa_1st); + } + + pa = psys->particles + cpa->parent; + + psys_mat_hair_to_global(ob, ctx->psmd->dm, psys->part->from, pa, hairmat); pa=0; } @@ -2056,6 +2298,8 @@ void psys_thread_create_path(ParticleThread *thread, struct ChildParticle *cpa, cpa_fuv=pa->fuv; psys_particle_on_emitter(ctx->psmd,cpa_from,cpa_num,DMCACHE_ISCHILD,cpa_fuv,pa->foffset,co,ornor,0,0,orco,0); + + psys_mat_hair_to_global(ob, ctx->psmd->dm, psys->part->from, pa, hairmat); } keys->steps = ctx->steps; @@ -2070,43 +2314,13 @@ void psys_thread_create_path(ParticleThread *thread, struct ChildParticle *cpa, #endif // XXX old animation system /* get different child parameters from textures & vgroups */ - ptex.length=part->length*(1.0f - part->randlength*cpa->rand[0]); - ptex.clump=1.0; - ptex.kink=1.0; - ptex.rough= 1.0; - ptex.exist= 1.0; - - get_cpa_texture(ctx->dm,ctx->ma,cpa_num,cpa_fuv,orco,&ptex, - MAP_PA_DENS|MAP_PA_LENGTH|MAP_PA_CLUMP|MAP_PA_KINK|MAP_PA_ROUGH); - - pa_length=ptex.length; - pa_clump=ptex.clump; - pa_kink=ptex.kink; - pa_rough1=ptex.rough; - pa_rough2=ptex.rough; - pa_roughe=ptex.rough; - pa_effector= 1.0f; + get_child_modifier_parameters(part, ctx, cpa, cpa_from, cpa_num, cpa_fuv, orco, &ptex); if(ptex.exist < cpa->rand[1]) { keys->steps = -1; return; } - if(ctx->vg_length) - pa_length*=psys_interpolate_value_from_verts(ctx->dm,cpa_from,cpa_num,cpa_fuv,ctx->vg_length); - if(ctx->vg_clump) - pa_clump*=psys_interpolate_value_from_verts(ctx->dm,cpa_from,cpa_num,cpa_fuv,ctx->vg_clump); - if(ctx->vg_kink) - pa_kink*=psys_interpolate_value_from_verts(ctx->dm,cpa_from,cpa_num,cpa_fuv,ctx->vg_kink); - if(ctx->vg_rough1) - pa_rough1*=psys_interpolate_value_from_verts(ctx->dm,cpa_from,cpa_num,cpa_fuv,ctx->vg_rough1); - if(ctx->vg_rough2) - pa_rough2*=psys_interpolate_value_from_verts(ctx->dm,cpa_from,cpa_num,cpa_fuv,ctx->vg_rough2); - if(ctx->vg_roughe) - pa_roughe*=psys_interpolate_value_from_verts(ctx->dm,cpa_from,cpa_num,cpa_fuv,ctx->vg_roughe); - if(ctx->vg_effector) - pa_effector*=psys_interpolate_value_from_verts(ctx->dm,cpa_from,cpa_num,cpa_fuv,ctx->vg_effector); - /* create the child path */ for(k=0,state=keys; k<=ctx->steps; k++,state++){ if(ctx->between){ @@ -2130,12 +2344,14 @@ void psys_thread_create_path(ParticleThread *thread, struct ChildParticle *cpa, key[w]++; w++; } - if(k==0){ - /* calculate the offset between actual child root position and first position interpolated from parents */ - VECSUB(cpa_1st,cpa_1st,state->co); + if(part->path_start==0.0f) { + if(k==0){ + /* calculate the offset between actual child root position and first position interpolated from parents */ + VECSUB(cpa_1st,cpa_1st,state->co); + } + /* apply offset for correct positioning */ + VECADD(state->co,state->co,cpa_1st); } - /* apply offset for correct positioning */ - VECADD(state->co,state->co,cpa_1st); } else{ /* offset the child from the parent position */ @@ -2149,7 +2365,7 @@ void psys_thread_create_path(ParticleThread *thread, struct ChildParticle *cpa, if(part->flag & PART_CHILD_EFFECT) { for(k=0,state=keys; k<=ctx->steps; k++,state++) { if(k) { - do_path_effectors(ctx->scene, ob, psys, cpa->pa[0], state, k, ctx->steps, keys->co, pa_effector, 0.0f, ctx->cfra, &eff_length, eff_vec); + do_path_effectors(ctx->scene, ob, psys, cpa->pa[0], state, k, ctx->steps, keys->co, ptex.effector, 0.0f, ctx->cfra, &eff_length, eff_vec); } else { VecSubf(eff_vec,(state+1)->co,state->co); @@ -2175,67 +2391,50 @@ void psys_thread_create_path(ParticleThread *thread, struct ChildParticle *cpa, } /* apply different deformations to the child path */ - if(part->flag & PART_CHILD_EFFECT) - /* state is safe to cast, since only co and vel are used */ - guided = do_guide(ctx->scene, (ParticleKey*)state, cpa->parent, t, &(psys->effectors)); - - if(guided==0){ - if(part->kink) - do_prekink((ParticleKey*)state, (ParticleKey*)par, par_rot, t, - part->kink_freq * pa_kink, part->kink_shape, part->kink_amp, part->kink, part->kink_axis, ob->obmat); - - do_clump((ParticleKey*)state, (ParticleKey*)par, t, part->clumpfac, part->clumppow, pa_clump); - } - - if(part->flag & PART_BRANCHING && ctx->between == 0 && part->flag & PART_ANIM_BRANCHING) - rough_t = t * rough_rand; - else - rough_t = t; - - if(part->rough1 != 0.0 && pa_rough1 != 0.0) - do_rough(orco, rough_t, pa_rough1*part->rough1, part->rough1_size, 0.0, (ParticleKey*)state); + do_child_modifiers(ctx->scene, ob, psys, part, &ptex, (ParticleKey *)par, par_rot, cpa, orco, hairmat, (ParticleKey *)state, t); - if(part->rough2 != 0.0 && pa_rough2 != 0.0) - do_rough(cpa->rand, rough_t, pa_rough2*part->rough2, part->rough2_size, part->rough2_thres, (ParticleKey*)state); - - if(part->rough_end != 0.0 && pa_roughe != 0.0) - do_rough_end(cpa->rand, rough_t, pa_roughe*part->rough_end, part->rough_end_shape, (ParticleKey*)state, (ParticleKey*)par); - - if(part->flag & PART_BRANCHING && ctx->between==0){ - if(branch_prob > part->branch_thres){ - branchfac=0.0f; - } - else{ - if(part->flag & PART_SYMM_BRANCHING){ - if(t < branch_begin || t > branch_end) - branchfac=0.0f; - else{ - if((t-branch_begin)/(branch_end-branch_begin)<0.5) - branchfac=2.0f*(t-branch_begin)/(branch_end-branch_begin); - else - branchfac=2.0f*(branch_end-t)/(branch_end-branch_begin); + /* TODO: better branching */ + //if(part->flag & PART_BRANCHING && ctx->between == 0 && part->flag & PART_ANIM_BRANCHING) + // rough_t = t * rough_rand; + //else + // rough_t = t; - CLAMP(branchfac,0.0f,1.0f); - } - } - else{ - if(t < branch_begin){ - branchfac=0.0f; - } - else{ - branchfac=(t-branch_begin)/((1.0f-branch_begin)*0.5f); - CLAMP(branchfac,0.0f,1.0f); - } - } - } + /* TODO: better branching */ + //if(part->flag & PART_BRANCHING && ctx->between==0){ + // if(branch_prob > part->branch_thres){ + // branchfac=0.0f; + // } + // else{ + // if(part->flag & PART_SYMM_BRANCHING){ + // if(t < branch_begin || t > branch_end) + // branchfac=0.0f; + // else{ + // if((t-branch_begin)/(branch_end-branch_begin)<0.5) + // branchfac=2.0f*(t-branch_begin)/(branch_end-branch_begin); + // else + // branchfac=2.0f*(branch_end-t)/(branch_end-branch_begin); + + // CLAMP(branchfac,0.0f,1.0f); + // } + // } + // else{ + // if(t < branch_begin){ + // branchfac=0.0f; + // } + // else{ + // branchfac=(t-branch_begin)/((1.0f-branch_begin)*0.5f); + // CLAMP(branchfac,0.0f,1.0f); + // } + // } + // } - if(i<psys->totpart) - VecLerpf(state->co, (pcache[i] + k)->co, state->co, branchfac); - else - /* this is not threadsafe, but should only happen for - * branching particles particles, which are not threaded */ - VecLerpf(state->co, (cache[i - psys->totpart] + k)->co, state->co, branchfac); - } + // if(i<psys->totpart) + // VecLerpf(state->co, (pcache[i] + k)->co, state->co, branchfac); + // else + // /* this is not threadsafe, but should only happen for + // * branching particles particles, which are not threaded */ + // VecLerpf(state->co, (cache[i - psys->totpart] + k)->co, state->co, branchfac); + //} /* we have to correct velocity because of kink & clump */ if(k>1){ @@ -2249,20 +2448,12 @@ void psys_thread_create_path(ParticleThread *thread, struct ChildParticle *cpa, /* check if path needs to be cut before actual end of data points */ if(k){ VECSUB(dvec,state->co,(state-1)->co); - if(part->flag&PART_ABS_LENGTH) - length=VecLength(dvec); - else - length=1.0f/(float)ctx->steps; - + length=1.0f/(float)ctx->steps; k=check_path_length(k,keys,state,max_length,&cur_length,length,dvec); } else{ /* initialize length calculation */ - if(part->flag&PART_ABS_LENGTH) - max_length= part->abslength*pa_length; - else - max_length= pa_length; - + max_length= ptex.length; cur_length= 0.0f; } @@ -2355,7 +2546,6 @@ void psys_cache_child_paths(Scene *scene, Object *ob, ParticleSystem *psys, floa psys_threads_free(pthreads); } - /* Calculates paths ready for drawing/rendering. */ /* -Usefull for making use of opengl vertex arrays for super fast strand drawing. */ /* -Makes child strands possible and creates them too into the cache. */ @@ -2368,7 +2558,7 @@ void psys_cache_paths(Scene *scene, Object *ob, ParticleSystem *psys, float cfra ParticleSettings *part = psys->part; ParticleData *pa; - ParticleKey keys[4], result, *kkey[2] = {NULL, NULL}; + ParticleKey result, *kkey[2] = {NULL, NULL}; HairKey *hkey[2] = {NULL, NULL}; ParticleEdit *edit = 0; @@ -2378,11 +2568,14 @@ void psys_cache_paths(Scene *scene, Object *ob, ParticleSystem *psys, float cfra BodyPoint *bp[2] = {NULL, NULL}; Material *ma; + + ParticleInterpolationData pind; float birthtime = 0.0, dietime = 0.0; float t, time = 0.0, keytime = 0.0, dfra = 1.0, frs_sec = scene->r.frs_sec; - float col[3] = {0.5f, 0.5f, 0.5f}; + float col[4] = {0.5f, 0.5f, 0.5f, 1.0f}; float prev_tangent[3], hairmat[4][4]; + float rotmat[3][3]; int k,i; int steps = (int)pow(2.0, (double)psys->part->draw_step); int totpart = psys->totpart; @@ -2390,13 +2583,18 @@ void psys_cache_paths(Scene *scene, Object *ob, ParticleSystem *psys, float cfra float nosel_col[3]; float length, vec[3]; float *vg_effector= NULL, effector=0.0f; - float *vg_length= NULL, pa_length=1.0f, max_length=1.0f, cur_length=0.0f; - float len, dvec[3]; + float *vg_length= NULL, pa_length=1.0f; + int keyed, baked; /* we don't have anything valid to create paths from so let's quit here */ - if((psys->flag & PSYS_HAIR_DONE)==0 && (psys->flag & PSYS_KEYED)==0) + if((psys->flag & PSYS_HAIR_DONE)==0 && (psys->flag & PSYS_KEYED)==0 && (psys->pointcache->flag & PTCACHE_BAKED)==0) return; + BLI_srandom(psys->seed); + + keyed = psys->flag & PSYS_KEYED; + baked = psys->pointcache->flag & PTCACHE_BAKED; + if(psys->renderdata) { steps = (int)pow(2.0, (double)psys->part->ren_step); } @@ -2460,7 +2658,7 @@ void psys_cache_paths(Scene *scene, Object *ob, ParticleSystem *psys, float cfra else memset(cache[i], 0, sizeof(*cache[i])*(steps+1)); if(!edit && !psys->totchild) { - pa_length = part->length * (1.0f - part->randlength*pa->r_ave[0]); + pa_length = 1.0f - part->randlength * 0.5 * (1.0f + pa->r_ave[0]); if(vg_length) pa_length *= psys_particle_value_from_verts(psmd->dm,part->from,pa,vg_length); } @@ -2471,26 +2669,35 @@ void psys_cache_paths(Scene *scene, Object *ob, ParticleSystem *psys, float cfra ekey = edit->keys[i]; /*--get the first data points--*/ - if(psys->flag & PSYS_KEYED) { - kkey[0] = pa->keys; - kkey[1] = kkey[0] + 1; - - birthtime = kkey[0]->time; - dietime = kkey[0][pa->totkey-1].time; - } - else { - hkey[0] = pa->hair; - hkey[1] = hkey[0] + 1; - - birthtime = hkey[0]->time; - dietime = hkey[0][pa->totkey-1].time; + pind.keyed = keyed; + pind.cached = baked; + pind.soft = soft; + init_particle_interpolation(ob, psys, pa, &pind); + + + /* hairmat is needed for for non-hair particle too so we get proper rotations */ + psys_mat_hair_to_global(ob, psmd->dm, psys->part->from, pa, hairmat); + VECCOPY(rotmat[0], hairmat[2]); + VECCOPY(rotmat[1], hairmat[1]); + VECCOPY(rotmat[2], hairmat[0]); + + if(!edit) { + if(part->draw & PART_ABS_PATH_TIME) { + birthtime = MAX2(pind.birthtime, part->path_start); + dietime = MIN2(pind.dietime, part->path_end); + } + else { + float tb = pind.birthtime; + birthtime = tb + part->path_start * (pind.dietime - tb); + dietime = tb + part->path_end * (pind.dietime - tb); + } - psys_mat_hair_to_global(ob, psmd->dm, psys->part->from, pa, hairmat); - } + if(birthtime >= dietime) { + cache[i]->steps = -1; + continue; + } - if(soft){ - bp[0] = soft->bpoint + pa->bpi; - bp[1] = bp[0] + 1; + dietime = birthtime + pa_length * (dietime - birthtime); } /*--interpolate actual path from data points--*/ @@ -2499,85 +2706,12 @@ void psys_cache_paths(Scene *scene, Object *ob, ParticleSystem *psys, float cfra t = birthtime + time * (dietime - birthtime); - if(psys->flag & PSYS_KEYED) { - while(kkey[1]->time < t) { - kkey[1]++; - } - - kkey[0] = kkey[1] - 1; - } - else { - while(hkey[1]->time < t) { - hkey[1]++; - bp[1]++; - } - - hkey[0] = hkey[1] - 1; - } - - if(soft) { - bp[0] = bp[1] - 1; - bp_to_particle(keys + 1, bp[0], hkey[0]); - bp_to_particle(keys + 2, bp[1], hkey[1]); - } - else if(psys->flag & PSYS_KEYED) { - memcpy(keys + 1, kkey[0], sizeof(ParticleKey)); - memcpy(keys + 2, kkey[1], sizeof(ParticleKey)); - } - else { - hair_to_particle(keys + 1, hkey[0]); - hair_to_particle(keys + 2, hkey[1]); - } - - - if((psys->flag & PSYS_KEYED)==0) { - if(soft) { - if(hkey[0] != pa->hair) - bp_to_particle(keys, bp[0] - 1, hkey[0] - 1); - else - bp_to_particle(keys, bp[0], hkey[0]); - } - else { - if(hkey[0] != pa->hair) - hair_to_particle(keys, hkey[0] - 1); - else - hair_to_particle(keys, hkey[0]); - } - - if(soft) { - if(hkey[1] != pa->hair + pa->totkey - 1) - bp_to_particle(keys + 3, bp[1] + 1, hkey[1] + 1); - else - bp_to_particle(keys + 3, bp[1], hkey[1]); - } - else { - if(hkey[1] != pa->hair + pa->totkey - 1) - hair_to_particle(keys + 3, hkey[1] + 1); - else - hair_to_particle(keys + 3, hkey[1]); - } - } - - dfra = keys[2].time - keys[1].time; - - keytime = (t - keys[1].time) / dfra; - - /* convert velocity to timestep size */ - if(psys->flag & PSYS_KEYED){ - VecMulf(keys[1].vel, dfra / frs_sec); - VecMulf(keys[2].vel, dfra / frs_sec); - } + result.time = -t; - /* now we should have in chronologiacl order k1<=k2<=t<=k3<=k4 with keytime between [0,1]->[k2,k3] (k1 & k4 used for cardinal & bspline interpolation)*/ - interpolate_particle((psys->flag & PSYS_KEYED) ? -1 /* signal for cubic interpolation */ - : ((psys->part->flag & PART_HAIR_BSPLINE) ? KEY_BSPLINE : KEY_CARDINAL) - ,keys, keytime, &result, 0); + do_particle_interpolation(psys, i, pa, t, frs_sec, &pind, &result); - /* the velocity needs to be converted back from cubic interpolation */ - if(psys->flag & PSYS_KEYED){ - VecMulf(result.vel, frs_sec / dfra); - } - else if(soft==NULL) { /* softbody and keyed are allready in global space */ + /* keyed, baked and softbody are allready in global space */ + if(!keyed && !baked && !soft) { Mat4MulVecfl(hairmat, result.co); } @@ -2615,8 +2749,9 @@ void psys_cache_paths(Scene *scene, Object *ob, ParticleSystem *psys, float cfra VECCOPY(ca->col, col); } } + - /*--modify paths--*/ + /*--modify paths and calculate rotation & velocity--*/ VecSubf(vec,(cache[i]+1)->co,cache[i]->co); length = VecLength(vec); @@ -2645,12 +2780,18 @@ void psys_cache_paths(Scene *scene, Object *ob, ParticleSystem *psys, float cfra float cosangle, angle, tangent[3], normal[3], q[4]; if(k == 1) { + /* calculate initial tangent for incremental rotations */ VECSUB(tangent, ca->co, (ca - 1)->co); - - vectoquat(tangent, OB_POSX, OB_POSZ, (ca-1)->rot); - VECCOPY(prev_tangent, tangent); Normalize(prev_tangent); + + /* First rotation is based on emitting face orientation. */ + /* This is way better than having flipping rotations resulting */ + /* from using a global axis as a rotation pole (vec_to_quat()). */ + /* It's not an ideal solution though since it disregards the */ + /* initial tangent, but taking that in to account will allow */ + /* the possibility of flipping again. -jahka */ + Mat3ToQuat_is_ok(rotmat, (ca-1)->rot); } else { VECSUB(tangent, ca->co, (ca - 1)->co); @@ -2689,28 +2830,6 @@ void psys_cache_paths(Scene *scene, Object *ob, ParticleSystem *psys, float cfra } } - - if(!edit && !psys->totchild) { - /* check if path needs to be cut before actual end of data points */ - if(k){ - VECSUB(dvec,ca->co,(ca-1)->co); - if(part->flag&PART_ABS_LENGTH) - len=VecLength(dvec); - else - len=1.0f/(float)steps; - - k=check_path_length(k,cache[i],ca,max_length,&cur_length,len,dvec); - } - else{ - /* initialize length calculation */ - if(part->flag&PART_ABS_LENGTH) - max_length= part->abslength*pa_length; - else - max_length= pa_length; - - cur_length= 0.0f; - } - } } } @@ -2739,15 +2858,6 @@ void copy_particle_key(ParticleKey *to, ParticleKey *from, int time){ memcpy(to,from,sizeof(ParticleKey)); to->time=to_time; } - /* - VECCOPY(to->co,from->co); - VECCOPY(to->vel,from->vel); - QUATCOPY(to->rot,from->rot); - if(time) - to->time=from->time; - to->flag=from->flag; - to->sbw=from->sbw; - */ } void psys_get_from_key(ParticleKey *key, float *loc, float *vel, float *rot, float *time){ if(loc) VECCOPY(loc,key->co); @@ -2901,13 +3011,69 @@ void psys_mat_hair_to_global(Object *ob, DerivedMesh *dm, short from, ParticleDa /************************************************/ /* ParticleSettings handling */ /************************************************/ +void object_add_particle_system(Scene *scene, Object *ob) +{ + ParticleSystem *psys; + ModifierData *md; + ParticleSystemModifierData *psmd; + + if(!ob || ob->type != OB_MESH) + return; + + psys = ob->particlesystem.first; + for(; psys; psys=psys->next) + psys->flag &= ~PSYS_CURRENT; + + psys = MEM_callocN(sizeof(ParticleSystem), "particle_system"); + psys->pointcache = BKE_ptcache_add(); + BLI_addtail(&ob->particlesystem, psys); + + psys->part = psys_new_settings("PSys", NULL); + + md= modifier_new(eModifierType_ParticleSystem); + sprintf(md->name, "ParticleSystem %i", BLI_countlist(&ob->particlesystem)); + psmd= (ParticleSystemModifierData*) md; + psmd->psys=psys; + BLI_addtail(&ob->modifiers, md); + + psys->totpart=0; + psys->flag = PSYS_ENABLED|PSYS_CURRENT; + psys->cfra=bsystem_time(scene,ob,scene->r.cfra+1,0.0); + + DAG_scene_sort(scene); + DAG_object_flush_update(scene, ob, OB_RECALC_DATA); +} +void object_remove_particle_system(Scene *scene, Object *ob) +{ + ParticleSystem *psys = psys_get_current(ob); + ParticleSystemModifierData *psmd; + + if(!psys) + return; + + /* clear modifier */ + psmd= psys_get_modifier(ob, psys); + BLI_remlink(&ob->modifiers, psmd); + modifier_free((ModifierData *)psmd); + + /* clear particle system */ + BLI_remlink(&ob->particlesystem, psys); + psys_free(ob,psys); + + if(ob->particlesystem.first) + ((ParticleSystem *) ob->particlesystem.first)->flag |= PSYS_CURRENT; + + DAG_scene_sort(scene); + DAG_object_flush_update(scene, ob, OB_RECALC_DATA); +} static void default_particle_settings(ParticleSettings *part) { int i; part->type= PART_EMITTER; part->distr= PART_DISTR_JIT; - part->draw_as=PART_DRAW_DOT; + part->draw_as = PART_DRAW_REND; + part->ren_as = PART_DRAW_HALO; part->bb_uv_split=1; part->bb_align=PART_BB_VIEW; part->bb_split_offset=PART_BB_OFF_LINEAR; @@ -2920,8 +3086,6 @@ static void default_particle_settings(ParticleSettings *part) part->totpart= 1000; part->grid_res= 10; part->timetweak= 1.0; - part->keyed_time= 0.5; - //part->userjit; part->integrator= PART_INT_MIDPOINT; part->phystype= PART_PHYS_NEWTON; @@ -2935,7 +3099,6 @@ static void default_particle_settings(ParticleSettings *part) part->reactevent= PART_EVENT_DEATH; part->disp=100; part->from= PART_FROM_FACE; - part->length= 1.0; part->nbetween= 4; part->boidneighbours= 5; @@ -2962,7 +3125,14 @@ static void default_particle_settings(ParticleSettings *part) part->rough2_size=1.0; part->rough_end_shape=1.0; + part->clength=1.0f; + part->clength_thres=0.0f; + part->draw_line[0]=0.5; + part->path_start = 0.0f; + part->path_end = 1.0f; + + part->keyed_loops = 1; part->banking=1.0; part->max_bank=1.0; @@ -2987,6 +3157,9 @@ ParticleSettings *psys_new_settings(char *name, Main *main) { ParticleSettings *part; + if(main==NULL) + main = G.main; + part= alloc_libblock(&main->particle, ID_PA, name); default_particle_settings(part); @@ -3062,7 +3235,6 @@ void make_local_particlesettings(ParticleSettings *part) } } } - void psys_flush_particle_settings(Scene *scene, ParticleSettings *part, int recalc) { Base *base = scene->base.first; @@ -3169,7 +3341,7 @@ static void get_cpa_texture(DerivedMesh *dm, Material *ma, int face_index, float if(ma) for(m=0; m<MAX_MTEX; m++){ mtex=ma->mtex[m]; - if(mtex && (ma->septex & (1<<m))==0){ + if(mtex && (ma->septex & (1<<m))==0 && mtex->pmapto){ float def=mtex->def_var; float var=mtex->varfac; short blend=mtex->blendtype; @@ -3197,7 +3369,7 @@ static void get_cpa_texture(DerivedMesh *dm, Material *ma, int face_index, float if((event & mtex->pmapto) & MAP_PA_KINK) ptex->kink= texture_value_blend(def,ptex->kink,value,var,blend,neg & MAP_PA_KINK); if((event & mtex->pmapto) & MAP_PA_ROUGH) - ptex->rough= texture_value_blend(def,ptex->rough,value,var,blend,neg & MAP_PA_ROUGH); + ptex->rough1= ptex->rough2= ptex->roughe= texture_value_blend(def,ptex->rough1,value,var,blend,neg & MAP_PA_ROUGH); if((event & mtex->pmapto) & MAP_PA_DENS) ptex->exist= texture_value_blend(def,ptex->exist,value,var,blend,neg & MAP_PA_DENS); } @@ -3206,7 +3378,11 @@ static void get_cpa_texture(DerivedMesh *dm, Material *ma, int face_index, float if(event & MAP_PA_LENGTH) { CLAMP(ptex->length,0.0,1.0); } if(event & MAP_PA_CLUMP) { CLAMP(ptex->clump,0.0,1.0); } if(event & MAP_PA_KINK) { CLAMP(ptex->kink,0.0,1.0); } - if(event & MAP_PA_ROUGH) { CLAMP(ptex->rough,0.0,1.0); } + if(event & MAP_PA_ROUGH) { + CLAMP(ptex->rough1,0.0,1.0); + CLAMP(ptex->rough2,0.0,1.0); + CLAMP(ptex->roughe,0.0,1.0); + } if(event & MAP_PA_DENS) { CLAMP(ptex->exist,0.0,1.0); } } void psys_get_texture(Object *ob, Material *ma, ParticleSystemModifierData *psmd, ParticleSystem *psys, ParticleData *pa, ParticleTexture *ptex, int event) @@ -3218,7 +3394,7 @@ void psys_get_texture(Object *ob, Material *ma, ParticleSystemModifierData *psmd if(ma) for(m=0; m<MAX_MTEX; m++){ mtex=ma->mtex[m]; - if(mtex && (ma->septex & (1<<m))==0){ + if(mtex && (ma->septex & (1<<m))==0 && mtex->pmapto){ float var=mtex->varfac; float def=mtex->def_var; short blend=mtex->blendtype; @@ -3307,12 +3483,12 @@ float psys_get_size(Object *ob, Material *ma, ParticleSystemModifierData *psmd, return size*part->size; } -float psys_get_child_time(ParticleSystem *psys, ChildParticle *cpa, float cfra) +float psys_get_child_time(ParticleSystem *psys, ChildParticle *cpa, float cfra, float *birthtime, float *dietime) { ParticleSettings *part = psys->part; + float time, life; if(part->childtype==PART_CHILD_FACES){ - float time; int w=0; time=0.0; while(w<4 && cpa->pa[w]>=0){ @@ -3320,12 +3496,21 @@ float psys_get_child_time(ParticleSystem *psys, ChildParticle *cpa, float cfra) w++; } - return (cfra-time)/(part->lifetime*(1.0f-part->randlife*cpa->rand[1])); + life = part->lifetime*(1.0f-part->randlife*cpa->rand[1]); } else{ ParticleData *pa = psys->particles + cpa->parent; - return (cfra-pa->time)/pa->lifetime; + + time = pa->time; + life = pa->lifetime; } + + if(birthtime) + *birthtime = time; + if(dietime) + *dietime = time+life; + + return (cfra-time)/life; } float psys_get_child_size(ParticleSystem *psys, ChildParticle *cpa, float cfra, float *pa_time) { @@ -3342,7 +3527,7 @@ float psys_get_child_size(ParticleSystem *psys, ChildParticle *cpa, float cfra, if(pa_time) time=*pa_time; else - time=psys_get_child_time(psys,cpa,cfra); + time=psys_get_child_time(psys,cpa,cfra,NULL,NULL); /* correction for lifetime */ calc_ipo(part->ipo, 100*time); @@ -3364,6 +3549,66 @@ float psys_get_child_size(ParticleSystem *psys, ChildParticle *cpa, float cfra, return size; } +static void get_child_modifier_parameters(ParticleSettings *part, ParticleThreadContext *ctx, ChildParticle *cpa, short cpa_from, int cpa_num, float *cpa_fuv, float *orco, ParticleTexture *ptex) +{ + ptex->length= 1.0f - part->randlength*cpa->rand[0]; + ptex->clump=1.0; + ptex->kink=1.0; + ptex->rough1= 1.0; + ptex->rough2= 1.0; + ptex->roughe= 1.0; + ptex->exist= 1.0; + ptex->effector= 1.0; + + ptex->length*= part->clength_thres < cpa->rand[1] ? part->clength : 1.0f; + + get_cpa_texture(ctx->dm,ctx->ma,cpa_num,cpa_fuv,orco,ptex, + MAP_PA_DENS|MAP_PA_LENGTH|MAP_PA_CLUMP|MAP_PA_KINK|MAP_PA_ROUGH); + + + if(ptex->exist < cpa->rand[1]) + return; + + if(ctx->vg_length) + ptex->length*=psys_interpolate_value_from_verts(ctx->dm,cpa_from,cpa_num,cpa_fuv,ctx->vg_length); + if(ctx->vg_clump) + ptex->clump*=psys_interpolate_value_from_verts(ctx->dm,cpa_from,cpa_num,cpa_fuv,ctx->vg_clump); + if(ctx->vg_kink) + ptex->kink*=psys_interpolate_value_from_verts(ctx->dm,cpa_from,cpa_num,cpa_fuv,ctx->vg_kink); + if(ctx->vg_rough1) + ptex->rough1*=psys_interpolate_value_from_verts(ctx->dm,cpa_from,cpa_num,cpa_fuv,ctx->vg_rough1); + if(ctx->vg_rough2) + ptex->rough2*=psys_interpolate_value_from_verts(ctx->dm,cpa_from,cpa_num,cpa_fuv,ctx->vg_rough2); + if(ctx->vg_roughe) + ptex->roughe*=psys_interpolate_value_from_verts(ctx->dm,cpa_from,cpa_num,cpa_fuv,ctx->vg_roughe); + if(ctx->vg_effector) + ptex->effector*=psys_interpolate_value_from_verts(ctx->dm,cpa_from,cpa_num,cpa_fuv,ctx->vg_effector); +} +static void do_child_modifiers(Scene *scene, Object *ob, ParticleSystem *psys, ParticleSettings *part, ParticleTexture *ptex, ParticleKey *par, float *par_rot, ChildParticle *cpa, float *orco, float mat[4][4], ParticleKey *state, float t) +{ + int guided = 0; + + if(part->flag & PART_CHILD_EFFECT) + /* state is safe to cast, since only co and vel are used */ + guided = do_guide(scene, (ParticleKey*)state, cpa->parent, t, &(psys->effectors)); + + if(guided==0){ + if(part->kink) + do_prekink(state, par, par_rot, t, part->kink_freq * ptex->kink, part->kink_shape, + part->kink_amp, part->kink, part->kink_axis, ob->obmat); + + do_clump(state, par, t, part->clumpfac, part->clumppow, ptex->clump); + } + + if(part->rough1 != 0.0 && ptex->rough1 != 0.0) + do_rough(orco, mat, t, ptex->rough1*part->rough1, part->rough1_size, 0.0, state); + + if(part->rough2 != 0.0 && ptex->rough2 != 0.0) + do_rough(cpa->rand, mat, t, ptex->rough2*part->rough2, part->rough2_size, part->rough2_thres, state); + + if(part->rough_end != 0.0 && ptex->roughe != 0.0) + do_rough_end(cpa->rand, mat, t, ptex->roughe*part->rough_end, part->rough_end_shape, state); +} /* get's hair (or keyed) particles state at the "path time" specified in state->time */ void psys_get_particle_on_path(Scene *scene, Object *ob, ParticleSystem *psys, int p, ParticleKey *state, int vel) { @@ -3375,17 +3620,21 @@ void psys_get_particle_on_path(Scene *scene, Object *ob, ParticleSystem *psys, i ParticleTexture ptex; ParticleKey *kkey[2] = {NULL, NULL}; HairKey *hkey[2] = {NULL, NULL}; - ParticleKey *par=0, keys[4]; + ParticleKey *par=0, keys[4], tstate; + ParticleThreadContext ctx; /* fake thread context for child modifiers */ + ParticleInterpolationData pind; - float t, real_t, dfra, keytime, frs_sec = scene->r.frs_sec; + float t, frs_sec = scene->r.frs_sec; float co[3], orco[3]; float hairmat[4][4]; - float pa_clump = 0.0, pa_kink = 0.0; int totparent = 0; int totpart = psys->totpart; int totchild = psys->totchild; short between = 0, edit = 0; + int keyed = part->phystype & PART_PHYS_KEYED && psys->flag & PSYS_KEYED; + int cached = !keyed && part->type != PART_HAIR; + float *cpa_fuv; int cpa_num; short cpa_from; //if(psys_in_edit_mode(scene, psys)){ @@ -3394,12 +3643,6 @@ void psys_get_particle_on_path(Scene *scene, Object *ob, ParticleSystem *psys, i // edit=1; //} - /* user want's cubic interpolation but only without sb it possible */ - //if(interpolation==PART_INTER_CUBIC && baked && psys->softflag==OB_SB_ENABLE) - // interpolation=PART_INTER_BSPLINE; - //else if(baked==0) /* it doesn't make sense to use other types for keyed */ - // interpolation=PART_INTER_CUBIC; - t=state->time; CLAMP(t, 0.0, 1.0); @@ -3411,99 +3654,14 @@ void psys_get_particle_on_path(Scene *scene, Object *ob, ParticleSystem *psys, i key_from_object(pa->stick_ob,state); return; } - - if(psys->flag & PSYS_KEYED) { - kkey[0] = pa->keys; - kkey[1] = kkey[0] + 1; - - real_t = kkey[0]->time + t * (kkey[0][pa->totkey-1].time - kkey[0]->time); - } - else { - hkey[0] = pa->hair; - hkey[1] = pa->hair + 1; - - real_t = hkey[0]->time + (hkey[0][pa->totkey-1].time - hkey[0]->time) * t; - } - - if(psys->flag & PSYS_KEYED) { - while(kkey[1]->time < real_t) { - kkey[1]++; - } - kkey[0] = kkey[1] - 1; - - memcpy(keys + 1, kkey[0], sizeof(ParticleKey)); - memcpy(keys + 2, kkey[1], sizeof(ParticleKey)); - } - else { - while(hkey[1]->time < real_t) - hkey[1]++; - - hkey[0] = hkey[1] - 1; - - hair_to_particle(keys + 1, hkey[0]); - hair_to_particle(keys + 2, hkey[1]); - } - - if((psys->flag & PSYS_KEYED)==0) { - //if(soft){ - // if(key[0] != sbel.keys) - // DB_copy_key(&k1,key[0]-1); - // else - // DB_copy_key(&k1,&k2); - //} - //else{ - if(hkey[0] != pa->hair) - hair_to_particle(keys, hkey[0] - 1); - else - hair_to_particle(keys, hkey[0]); - //} - - //if(soft){ - // if(key[1] != sbel.keys + sbel.totkey-1) - // DB_copy_key(&k4,key[1]+1); - // else - // DB_copy_key(&k4,&k3); - //} - //else { - if(hkey[1] != pa->hair + pa->totkey - 1) - hair_to_particle(keys + 3, hkey[1] + 1); - else - hair_to_particle(keys + 3, hkey[1]); - } - //} - //psys_get_particle_on_path(scene, bsys,p,t,bkey,ckey[0]); + pind.keyed = keyed; + pind.cached = cached; + pind.soft = NULL; + init_particle_interpolation(ob, psys, pa, &pind); + do_particle_interpolation(psys, p, pa, t, frs_sec, &pind, state); - //if(part->rotfrom==PART_ROT_KEYS) - // QuatInterpol(state->rot,k2.rot,k3.rot,keytime); - //else{ - // /* TODO: different rotations */ - // float nvel[3]; - // VECCOPY(nvel,state->vel); - // VecMulf(nvel,-1.0f); - // vectoquat(nvel, OB_POSX, OB_POSZ, state->rot); - //} - - dfra = keys[2].time - keys[1].time; - - keytime = (real_t - keys[1].time) / dfra; - - /* convert velocity to timestep size */ - if(psys->flag & PSYS_KEYED){ - VecMulf(keys[1].vel, dfra / frs_sec); - VecMulf(keys[2].vel, dfra / frs_sec); - QuatInterpol(state->rot,keys[1].rot,keys[2].rot,keytime); - } - - interpolate_particle((psys->flag & PSYS_KEYED) ? -1 /* signal for cubic interpolation */ - : ((psys->part->flag & PART_HAIR_BSPLINE) ? KEY_BSPLINE : KEY_CARDINAL) - ,keys, keytime, state, 1); - - /* the velocity needs to be converted back from cubic interpolation */ - if(psys->flag & PSYS_KEYED){ - VecMulf(state->vel, frs_sec / dfra); - } - else { + if(!keyed && !cached) { if((pa->flag & PARS_REKEY)==0) { psys_mat_hair_to_global(ob, psmd->dm, part->from, pa, hairmat); Mat4MulVecfl(hairmat, state->co); @@ -3521,8 +3679,11 @@ void psys_get_particle_on_path(Scene *scene, Object *ob, ParticleSystem *psys, i } else if(totchild){ //Mat4Invert(imat,ob->obmat); - + cpa=psys->child+p-totpart; + + if(state->time < 0.0f) + t = psys_get_child_time(psys, cpa, -state->time, NULL, NULL); if(totchild && part->from!=PART_FROM_PARTICLE && part->childtype==PART_CHILD_FACES){ totparent=(int)(totchild*part->parents*0.3); @@ -3539,7 +3700,7 @@ void psys_get_particle_on_path(Scene *scene, Object *ob, ParticleSystem *psys, i /* get parent states */ while(w<4 && cpa->pa[w]>=0){ - keys[w].time = t; + keys[w].time = state->time; psys_get_particle_on_path(scene, ob, psys, cpa->pa[w], keys+w, 1); w++; } @@ -3548,8 +3709,6 @@ void psys_get_particle_on_path(Scene *scene, Object *ob, ParticleSystem *psys, i cpa_num=cpa->num; foffset= cpa->foffset; - if(part->childtype == PART_CHILD_FACES) - foffset = -(2.0f + part->childspread); cpa_fuv = cpa->fuv; cpa_from = PART_FROM_FACE; @@ -3560,12 +3719,15 @@ void psys_get_particle_on_path(Scene *scene, Object *ob, ParticleSystem *psys, i //Mat4MulVecfl(ob->obmat,cpa_1st); + pa = psys->particles + cpa->parent; + + psys_mat_hair_to_global(ob, psmd->dm, psys->part->from, pa, hairmat); + pa=0; } else{ /* get the parent state */ - - keys->time = t; + keys->time = state->time; psys_get_particle_on_path(scene, ob, psys, cpa->parent, keys,1); /* get the original coordinates (orco) for texture usage */ @@ -3576,6 +3738,8 @@ void psys_get_particle_on_path(Scene *scene, Object *ob, ParticleSystem *psys, i cpa_fuv=pa->fuv; psys_particle_on_emitter(psmd,cpa_from,cpa_num,DMCACHE_ISCHILD,cpa_fuv,pa->foffset,co,0,0,0,orco,0); + + psys_mat_hair_to_global(ob, psmd->dm, psys->part->from, pa, hairmat); } /* correct child ipo timing */ @@ -3587,15 +3751,11 @@ void psys_get_particle_on_path(Scene *scene, Object *ob, ParticleSystem *psys, i #endif // XXX old animation system /* get different child parameters from textures & vgroups */ - ptex.clump=1.0; - ptex.kink=1.0; - - get_cpa_texture(psmd->dm,ma,cpa_num,cpa_fuv,orco,&ptex,MAP_PA_CLUMP|MAP_PA_KINK); - - pa_clump=ptex.clump; - pa_kink=ptex.kink; - - /* TODO: vertex groups */ + memset(&ctx, 0, sizeof(ParticleThreadContext)); + ctx.dm = psmd->dm; + ctx.ma = ma; + /* TODO: assign vertex groups */ + get_child_modifier_parameters(part, &ctx, cpa, cpa_from, cpa_num, cpa_fuv, orco, &ptex); if(between){ int w=0; @@ -3623,46 +3783,33 @@ void psys_get_particle_on_path(Scene *scene, Object *ob, ParticleSystem *psys, i } par = keys; - //if(totparent){ - // if(p-totpart>=totparent){ - // key.time=t; - // psys_get_particle_on_path(ob,psys,totpart+cpa->parent,&key,1); - // bti->convert_dynamic_key(bsys,&key,par,cpar); - // } - // else - // par=0; - //} - //else - // DB_get_key_on_path(bsys,cpa->parent,t,par,cpar); - /* apply different deformations to the child path */ - if(part->kink) - do_prekink(state, par, par->rot, t, part->kink_freq * pa_kink, part->kink_shape, - part->kink_amp, part->kink, part->kink_axis, ob->obmat); - - do_clump(state, par, t, part->clumpfac, part->clumppow, 1.0f); - - if(part->rough1 != 0.0) - do_rough(orco, t, part->rough1, part->rough1_size, 0.0, state); - - if(part->rough2 != 0.0) - do_rough(cpa->rand, t, part->rough2, part->rough2_size, part->rough2_thres, state); + if(vel) + copy_particle_key(&tstate, state, 1); - if(part->rough_end != 0.0) - do_rough_end(cpa->rand, t, part->rough_end, part->rough_end_shape, state, par); + /* apply different deformations to the child path */ + do_child_modifiers(scene, ob, psys, part, &ptex, par, par->rot, cpa, orco, hairmat, state, t); + + /* try to estimate correct velocity */ + if(vel){ + ParticleKey tstate; + float length = VecLength(state->vel); + + if(t>=0.001f){ + tstate.time=t-0.001f; + psys_get_particle_on_path(scene,ob,psys,p,&tstate,0); + VECSUB(state->vel,state->co,tstate.co); + Normalize(state->vel); + } + else{ + tstate.time=t+0.001f; + psys_get_particle_on_path(scene, ob,psys,p,&tstate,0); + VECSUB(state->vel,tstate.co,state->co); + Normalize(state->vel); + } - //if(vel){ - // if(t>=0.001f){ - // tstate.time=t-0.001f; - // psys_get_particle_on_path(scene,ob,psys,p,&tstate,0); - // VECSUB(state->vel,state->co,tstate.co); - // } - // else{ - // tstate.time=t+0.001f; - // psys_get_particle_on_path(scene, ob,psys,p,&tstate,0); - // VECSUB(state->vel,tstate.co,state->co); - // } - //} + VecMulf(state->vel, length); + } } } /* gets particle's state at a time, returns 1 if particle exists and can be seen and 0 if not */ @@ -3689,7 +3836,7 @@ int psys_get_particle_state(struct Scene *scene, Object *ob, ParticleSystem *psy pa=psys->particles+p; if(between){ - state->time = psys_get_child_time(psys,&psys->child[p-totpart],cfra); + state->time = psys_get_child_time(psys,&psys->child[p-totpart],cfra,NULL,NULL); if(always==0) if((state->time<0.0 && (part->flag & PART_UNBORN)==0) @@ -3702,6 +3849,8 @@ int psys_get_particle_state(struct Scene *scene, Object *ob, ParticleSystem *psy if((pa->alive==PARS_UNBORN && (part->flag & PART_UNBORN)==0) || (pa->alive==PARS_DEAD && (part->flag & PART_DIED)==0)) return 0; + + state->time = MIN2(state->time, pa->dietime); } if(psys->flag & PSYS_KEYED){ @@ -3710,7 +3859,7 @@ int psys_get_particle_state(struct Scene *scene, Object *ob, ParticleSystem *psy state->time= (cfra-(part->sta+(part->end-part->sta)*cpa->rand[0]))/(part->lifetime*cpa->rand[1]); } else - state->time= (cfra-pa->time)/(pa->dietime-pa->time); + state->time= -cfra; psys_get_particle_on_path(scene, ob, psys, p, state,1); return 1; @@ -3747,57 +3896,55 @@ int psys_get_particle_state(struct Scene *scene, Object *ob, ParticleSystem *psy calc_latt_deform(psys->lattice, state->co,1.0f); } else{ - if (pa) { /* TODO PARTICLE - should this ever be NULL? - Campbell */ - if(pa->state.time==state->time || ELEM(part->phystype,PART_PHYS_NO,PART_PHYS_KEYED)) - copy_particle_key(state, &pa->state, 1); - else if(pa->prev_state.time==state->time) - copy_particle_key(state, &pa->prev_state, 1); - else { - /* let's interpolate to try to be as accurate as possible */ - if(pa->state.time + 1.0f > state->time && pa->prev_state.time - 1.0f < state->time) { - ParticleKey keys[4]; - float dfra, keytime, frs_sec = scene->r.frs_sec; + if(pa->state.time==state->time || ELEM(part->phystype,PART_PHYS_NO,PART_PHYS_KEYED)) + copy_particle_key(state, &pa->state, 1); + else if(pa->prev_state.time==state->time) + copy_particle_key(state, &pa->prev_state, 1); + else { + /* let's interpolate to try to be as accurate as possible */ + if(pa->state.time + 1.0f > state->time && pa->prev_state.time - 1.0f < state->time) { + ParticleKey keys[4]; + float dfra, keytime, frs_sec = scene->r.frs_sec; - if(pa->prev_state.time >= pa->state.time) { - /* prev_state is wrong so let's not use it, this can happen at frame 1 or particle birth */ - copy_particle_key(state, &pa->state, 1); + if(pa->prev_state.time >= pa->state.time) { + /* prev_state is wrong so let's not use it, this can happen at frame 1 or particle birth */ + copy_particle_key(state, &pa->state, 1); - VECADDFAC(state->co, state->co, state->vel, (state->time-pa->state.time)/frs_sec); - } - else { - copy_particle_key(keys+1, &pa->prev_state, 1); - copy_particle_key(keys+2, &pa->state, 1); + VECADDFAC(state->co, state->co, state->vel, (state->time-pa->state.time)/frs_sec); + } + else { + copy_particle_key(keys+1, &pa->prev_state, 1); + copy_particle_key(keys+2, &pa->state, 1); - dfra = keys[2].time - keys[1].time; + dfra = keys[2].time - keys[1].time; - keytime = (state->time - keys[1].time) / dfra; + keytime = (state->time - keys[1].time) / dfra; - /* convert velocity to timestep size */ - VecMulf(keys[1].vel, dfra / frs_sec); - VecMulf(keys[2].vel, dfra / frs_sec); - - interpolate_particle(-1, keys, keytime, state, 1); - - /* convert back to real velocity */ - VecMulf(state->vel, frs_sec / dfra); + /* convert velocity to timestep size */ + VecMulf(keys[1].vel, dfra / frs_sec); + VecMulf(keys[2].vel, dfra / frs_sec); + + psys_interpolate_particle(-1, keys, keytime, state, 1); + + /* convert back to real velocity */ + VecMulf(state->vel, frs_sec / dfra); - VecLerpf(state->ave, keys[1].ave, keys[2].ave, keytime); - QuatInterpol(state->rot, keys[1].rot, keys[2].rot, keytime); - } - } - else { - /* extrapolating over big ranges is not accurate so let's just give something close to reasonable back */ - copy_particle_key(state, &pa->state, 0); + VecLerpf(state->ave, keys[1].ave, keys[2].ave, keytime); + QuatInterpol(state->rot, keys[1].rot, keys[2].rot, keytime); } } - - if(pa->alive==PARS_DEAD && part->flag&PART_STICKY && pa->flag&PARS_STICKY && pa->stick_ob){ - key_from_object(pa->stick_ob,state); + else { + /* extrapolating over big ranges is not accurate so let's just give something close to reasonable back */ + copy_particle_key(state, &pa->state, 0); } + } - if(psys->lattice) - calc_latt_deform(psys->lattice, state->co,1.0f); + if(pa->alive==PARS_DEAD && part->flag&PART_STICKY && pa->flag&PARS_STICKY && pa->stick_ob){ + key_from_object(pa->stick_ob,state); } + + if(psys->lattice) + calc_latt_deform(psys->lattice, state->co,1.0f); } return 1; |