diff options
Diffstat (limited to 'source/blender/blenkernel/intern/anim.c')
| -rw-r--r-- | source/blender/blenkernel/intern/anim.c | 31 |
1 files changed, 20 insertions, 11 deletions
diff --git a/source/blender/blenkernel/intern/anim.c b/source/blender/blenkernel/intern/anim.c index 8cb88cdb786..bd779935d55 100644 --- a/source/blender/blenkernel/intern/anim.c +++ b/source/blender/blenkernel/intern/anim.c @@ -280,17 +280,27 @@ int where_on_path(Object *ob, float ctime, float *vec, float *dir, float *quat, if (quat) { float totfac, q1[4], q2[4]; + /* checks for totfac are needed when 'fac' is 1.0 key_curve_position_weights can assign zero + * to more then one index in data which can give divide by zero error */ +/* totfac= data[0]+data[1]; - QuatInterpol(q1, p0->quat, p1->quat, data[0] / totfac); + if(totfac>0.000001) QuatInterpol(q1, p0->quat, p1->quat, data[0] / totfac); + else QUATCOPY(q1, p1->quat); + NormalQuat(q1); totfac= data[2]+data[3]; - QuatInterpol(q2, p2->quat, p3->quat, data[2] / totfac); + if(totfac>0.000001) QuatInterpol(q2, p2->quat, p3->quat, data[2] / totfac); + else QUATCOPY(q1, p3->quat); NormalQuat(q2); totfac = data[0]+data[1]+data[2]+data[3]; - QuatInterpol(quat, q1, q2, (data[0]+data[1]) / totfac); + if(totfac>0.000001) QuatInterpol(quat, q1, q2, (data[0]+data[1]) / totfac); + else QUATCOPY(quat, q2); NormalQuat(quat); + */ + // XXX - find some way to make quat interpolation work correctly, above code fails in rare but nasty cases. + QUATCOPY(quat, p1->quat); } if(radius) @@ -766,12 +776,12 @@ static void new_particle_duplilist(ListBase *lb, ID *id, Scene *scene, Object *p GroupObject *go; Object *ob=0, **oblist=0, obcopy, *obcopylist=0; DupliObject *dob; + ParticleSimulationData sim = {scene, par, psys, psys_get_modifier(par, psys)}; ParticleSettings *part; ParticleData *pa; ChildParticle *cpa=0; ParticleKey state; ParticleCacheKey *cache; - ParticleSystemModifierData *psmd; float ctime, pa_time, scale = 1.0f; float tmat[4][4], mat[4][4], pamat[4][4], size=0.0; float (*obmat)[4], (*oldobmat)[4]; @@ -784,7 +794,6 @@ static void new_particle_duplilist(ListBase *lb, ID *id, Scene *scene, Object *p if(level>MAX_DUPLI_RECUR) return; part=psys->part; - psmd= psys_get_modifier(par, psys); if(part==0) return; @@ -816,7 +825,7 @@ static void new_particle_duplilist(ListBase *lb, ID *id, Scene *scene, Object *p totpart = psys->totcached; } - psys->lattice = psys_get_lattice(scene, par, psys); + psys->lattice = psys_get_lattice(&sim); /* gather list of objects or single object */ if(part->ren_as==PART_DRAW_GR) { @@ -887,11 +896,11 @@ static void new_particle_duplilist(ListBase *lb, ID *id, Scene *scene, Object *p /* hair we handle separate and compute transform based on hair keys */ if(a < totpart) { cache = psys->pathcache[a]; - psys_get_dupli_path_transform(par, psys, psmd, pa, 0, cache, pamat, &scale); + psys_get_dupli_path_transform(&sim, pa, 0, cache, pamat, &scale); } else { cache = psys->childcache[a-totpart]; - psys_get_dupli_path_transform(par, psys, psmd, 0, cpa, cache, pamat, &scale); + psys_get_dupli_path_transform(&sim, 0, cpa, cache, pamat, &scale); } VECCOPY(pamat[3], cache->co); @@ -901,7 +910,7 @@ static void new_particle_duplilist(ListBase *lb, ID *id, Scene *scene, Object *p else { /* first key */ state.time = ctime; - if(psys_get_particle_state(scene, par, psys, a, &state, 0) == 0) + if(psys_get_particle_state(&sim, a, &state, 0) == 0) continue; QuatToMat4(state.rot, pamat); @@ -921,7 +930,7 @@ static void new_particle_duplilist(ListBase *lb, ID *id, Scene *scene, Object *p dob= new_dupli_object(lb, go->ob, mat, par->lay, counter, OB_DUPLIPARTS, animated); Mat4CpyMat4(dob->omat, obcopylist[b].obmat); if(G.rendering) - psys_get_dupli_texture(par, part, psmd, pa, cpa, dob->uv, dob->orco); + psys_get_dupli_texture(par, part, sim.psmd, pa, cpa, dob->uv, dob->orco); } } else { @@ -940,7 +949,7 @@ static void new_particle_duplilist(ListBase *lb, ID *id, Scene *scene, Object *p dob= new_dupli_object(lb, ob, mat, ob->lay, counter, OB_DUPLIPARTS, animated); Mat4CpyMat4(dob->omat, oldobmat); if(G.rendering) - psys_get_dupli_texture(par, part, psmd, pa, cpa, dob->uv, dob->orco); + psys_get_dupli_texture(par, part, sim.psmd, pa, cpa, dob->uv, dob->orco); } } |