static void vertex_dupli__mapFunc(void *userData, int index, const float co[3],
const float nor_f[3], const short nor_s[3])
{
const VertexDupliData *vdd = userData;
Object *inst_ob = vdd->inst_ob;
DupliObject *dob;
float obmat[4][4], space_mat[4][4];
/* obmat is transform to vertex */
get_duplivert_transform(co, nor_f, nor_s, vdd->use_rotation, inst_ob->trackflag, inst_ob->upflag, obmat);
/* make offset relative to inst_ob using relative child transform */
mul_mat3_m4_v3((float (*)[4])vdd->child_imat, obmat[3]);
/* apply obmat _after_ the local vertex transform */
mul_m4_m4m4(obmat, inst_ob->obmat, obmat);
/* space matrix is constructed by removing obmat transform,
* this yields the worldspace transform for recursive duplis
*/
mul_m4_m4m4(space_mat, obmat, inst_ob->imat);
dob = make_dupli(vdd->ctx, vdd->inst_ob, obmat, index, false, false);
if (vdd->orco)
copy_v3_v3(dob->orco, vdd->orco[index]);
/* recursion */
make_recursive_duplis(vdd->ctx, vdd->inst_ob, space_mat, index, false);
}
/* OB_DUPLIGROUP */
static void make_duplis_group(const DupliContext *ctx)
{
bool for_render = ctx->eval_ctx->for_render;
Object *ob = ctx->object;
Group *group;
GroupObject *go;
float group_mat[4][4];
int id;
bool animated, hide;
if (ob->dup_group == NULL) return;
group = ob->dup_group;
/* combine group offset and obmat */
unit_m4(group_mat);
sub_v3_v3(group_mat[3], group->dupli_ofs);
mul_m4_m4m4(group_mat, ob->obmat, group_mat);
/* don't access 'ob->obmat' from now on. */
/* handles animated groups */
/* we need to check update for objects that are not in scene... */
if (ctx->do_update) {
/* note: update is optional because we don't always need object
* transformations to be correct. Also fixes bug [#29616]. */
BKE_group_handle_recalc_and_update(ctx->eval_ctx, ctx->scene, ob, group);
}
animated = BKE_group_is_animated(group, ob);
for (go = group->gobject.first, id = 0; go; go = go->next, id++) {
/* note, if you check on layer here, render goes wrong... it still deforms verts and uses parent imat */
if (go->ob != ob) {
float mat[4][4];
/* group dupli offset, should apply after everything else */
mul_m4_m4m4(mat, group_mat, go->ob->obmat);
/* check the group instance and object layers match, also that the object visible flags are ok. */
hide = (go->ob->lay & group->layer) == 0 ||
(for_render ? go->ob->restrictflag & OB_RESTRICT_RENDER : go->ob->restrictflag & OB_RESTRICT_VIEW);
make_dupli(ctx, go->ob, mat, id, animated, hide);
/* recursion */
make_recursive_duplis(ctx, go->ob, group_mat, id, animated);
}
}
}
/* OB_DUPLIPARTS */
static void make_duplis_particle_system(const DupliContext *ctx, ParticleSystem *psys)
{
Scene *scene = ctx->scene;
Object *par = ctx->object;
bool for_render = ctx->eval_ctx->mode == DAG_EVAL_RENDER;
bool use_texcoords = ELEM(ctx->eval_ctx->mode, DAG_EVAL_RENDER, DAG_EVAL_PREVIEW);
GroupObject *go;
Object *ob = NULL, **oblist = NULL, obcopy, *obcopylist = NULL;
DupliObject *dob;
ParticleDupliWeight *dw;
ParticleSettings *part;
ParticleData *pa;
ChildParticle *cpa = NULL;
ParticleKey state;
ParticleCacheKey *cache;
float ctime, pa_time, scale = 1.0f;
float tmat[4][4], mat[4][4], pamat[4][4], vec[3], size = 0.0;
float (*obmat)[4];
int a, b, hair = 0;
int totpart, totchild, totgroup = 0 /*, pa_num */;
const bool dupli_type_hack = !BKE_scene_use_new_shading_nodes(scene);
int no_draw_flag = PARS_UNEXIST;
if (psys == NULL) return;
part = psys->part;
if (part == NULL)
return;
if (!psys_check_enabled(par, psys))
return;
if (!for_render)
no_draw_flag |= PARS_NO_DISP;
ctime = BKE_scene_frame_get(scene); /* NOTE: in old animsys, used parent object's timeoffset... */
totpart = psys->totpart;
totchild = psys->totchild;
BLI_srandom((unsigned int)(31415926 + psys->seed));
if ((psys->renderdata || part->draw_as == PART_DRAW_REND) && ELEM(part->ren_as, PART_DRAW_OB, PART_DRAW_GR)) {
ParticleSimulationData sim = {NULL};
sim.scene = scene;
sim.ob = par;
sim.psys = psys;
sim.psmd = psys_get_modifier(par, psys);
/* make sure emitter imat is in global coordinates instead of render view coordinates */
invert_m4_m4(par->imat, par->obmat);
/* first check for loops (particle system object used as dupli object) */
if (part->ren_as == PART_DRAW_OB) {
if (ELEM(part->dup_ob, NULL, par))
return;
}
else { /*PART_DRAW_GR */
if (part->dup_group == NULL || BLI_listbase_is_empty(&part->dup_group->gobject))
return;
if (BLI_findptr(&part->dup_group->gobject, par, offsetof(GroupObject, ob))) {
return;
}
}
/* if we have a hair particle system, use the path cache */
if (part->type == PART_HAIR) {
if (psys->flag & PSYS_HAIR_DONE)
hair = (totchild == 0 || psys->childcache) && psys->pathcache;
if (!hair)
return;
/* we use cache, update totchild according to cached data */
totchild = psys->totchildcache;
totpart = psys->totcached;
}
psys_check_group_weights(part);
psys->lattice_deform_data = psys_create_lattice_deform_data(&sim);
/* gather list of objects or single object */
if (part->ren_as == PART_DRAW_GR) {
if (ctx->do_update) {
BKE_group_handle_recalc_and_update(ctx->eval_ctx, scene, par, part->dup_group);
}
if (part->draw & PART_DRAW_COUNT_GR) {
for (dw = part->dupliweights.first; dw; dw = dw->next)
totgroup += dw->count;
}
else {
for (go = part->dup_group->gobject.first; go; go = go->next)
totgroup++;
}
/* we also copy the actual objects to restore afterwards, since
* BKE_object_where_is_calc_time will change the object which breaks transform */
oblist = MEM_callocN((size_t)totgroup * sizeof(Object *), "dupgroup object list");
obcopylist = MEM_callocN((size_t)totgroup * sizeof(Object), "dupgroup copy list");
if (part->draw & PART_DRAW_COUNT_GR && totgroup) {
dw = part->dupliweights.first;
for (a = 0; a < totgroup; dw = dw->next) {
for (b = 0; b < dw->count; b++, a++) {
oblist[a] = dw->ob;
obcopylist[a] = *dw->ob;
}
}
}
else {
go = part->dup_group->gobject.first;
for (a = 0; a < totgroup; a++, go = go->next) {
oblist[a] = go->ob;
obcopylist[a] = *go->ob;
}
}
}
else {
ob = part->dup_ob;
obcopy = *ob;
}
if (totchild == 0 || part->draw & PART_DRAW_PARENT)
a = 0;
else
a = totpart;
for (pa = psys->particles; a < totpart + totchild; a++, pa++) {
if (a < totpart) {
/* handle parent particle */
if (pa->flag & no_draw_flag)
continue;
/* pa_num = pa->num; */ /* UNUSED */
pa_time = pa->time;
size = pa->size;
}
else {
/* handle child particle */
cpa = &psys->child[a - totpart];
/* pa_num = a; */ /* UNUSED */
pa_time = psys->particles[cpa->parent].time;
size = psys_get_child_size(psys, cpa, ctime, NULL);
}
/* some hair paths might be non-existent so they can't be used for duplication */
if (hair && psys->pathcache &&
((a < totpart && psys->pathcache[a]->segments < 0) ||
(a >= totpart && psys->childcache[a - totpart]->segments < 0)))
{
continue;
}
if (part->ren_as == PART_DRAW_GR) {
/* prevent divide by zero below [#28336] */
if (totgroup == 0)
continue;
/* for groups, pick the object based on settings */
if (part->draw & PART_DRAW_RAND_GR)
b = BLI_rand() % totgroup;
else
b = a % totgroup;
ob = oblist[b];
obmat = oblist[b]->obmat;
}
else {
obmat = ob->obmat;
}
if (hair) {
/* hair we handle separate and compute transform based on hair keys */
if (a < totpart) {
cache = psys->pathcache[a];
psys_get_dupli_path_transform(&sim, pa, NULL, cache, pamat, &scale);
}
else {
cache = psys->childcache[a - totpart];
psys_get_dupli_path_transform(&sim, NULL, cpa, cache, pamat, &scale);
}
copy_v3_v3(pamat[3], cache->co);
pamat[3][3] = 1.0f;
}
else {
/* first key */
state.time = ctime;
if (psys_get_particle_state(&sim, a, &state, 0) == 0) {
continue;
}
else {
float tquat[4];
normalize_qt_qt(tquat, state.rot);
quat_to_mat4(pamat, tquat);
copy_v3_v3(pamat[3], state.co);
pamat[3][3] = 1.0f;
}
}
if (part->ren_as == PART_DRAW_GR && psys->part->draw & PART_DRAW_WHOLE_GR) {
for (go = part->dup_group->gobject.first, b = 0; go; go = go->next, b++) {
copy_m4_m4(tmat, oblist[b]->obmat);
/* apply particle scale */
mul_mat3_m4_fl(tmat, size * scale);
mul_v3_fl(tmat[3], size * scale);
/* group dupli offset, should apply after everything else */
if (!is_zero_v3(part->dup_group->dupli_ofs))
sub_v3_v3(tmat[3], part->dup_group->dupli_ofs);
/* individual particle transform */
mul_m4_m4m4(mat, pamat, tmat);
dob = make_dupli(ctx, go->ob, mat, a, false, false);
dob->particle_system = psys;
if (use_texcoords)
psys_get_dupli_texture(psys, part, sim.psmd, pa, cpa, dob->uv, dob->orco);
}
}
else {
/* to give ipos in object correct offset */
BKE_object_where_is_calc_time(scene, ob, ctime - pa_time);
copy_v3_v3(vec, obmat[3]);
obmat[3][0] = obmat[3][1] = obmat[3][2] = 0.0f;
/* particle rotation uses x-axis as the aligned axis, so pre-rotate the object accordingly */
if ((part->draw & PART_DRAW_ROTATE_OB) == 0) {
float xvec[3], q[4], size_mat[4][4], original_size[3];
mat4_to_size(original_size, obmat);
size_to_mat4(size_mat, original_size);
xvec[0] = -1.f;
xvec[1] = xvec[2] = 0;
vec_to_quat(q, xvec, ob->trackflag, ob->upflag);
quat_to_mat4(obmat, q);
obmat[3][3] = 1.0f;
/* add scaling if requested */
if ((part->draw & PART_DRAW_NO_SCALE_OB) == 0)
mul_m4_m4m4(obmat, obmat, size_mat);
}
else if (part->draw & PART_DRAW_NO_SCALE_OB) {
/* remove scaling */
float size_mat[4][4], original_size[3];
mat4_to_size(original_size, obmat);
size_to_mat4(size_mat, original_size);
invert_m4(size_mat);
mul_m4_m4m4(obmat, obmat, size_mat);
}
mul_m4_m4m4(tmat, pamat, obmat);
mul_mat3_m4_fl(tmat, size * scale);
copy_m4_m4(mat, tmat);
if (part->draw & PART_DRAW_GLOBAL_OB)
add_v3_v3v3(mat[3], mat[3], vec);
dob = make_dupli(ctx, ob, mat, a, false, false);
dob->particle_system = psys;
if (use_texcoords)
psys_get_dupli_texture(psys, part, sim.psmd, pa, cpa, dob->uv, dob->orco);
/* XXX blender internal needs this to be set to dupligroup to render
* groups correctly, but we don't want this hack for cycles */
if (dupli_type_hack && ctx->group)
dob->type = OB_DUPLIGROUP;
}
}
/* restore objects since they were changed in BKE_object_where_is_calc_time */
if (part->ren_as == PART_DRAW_GR) {
for (a = 0; a < totgroup; a++)
*(oblist[a]) = obcopylist[a];
}
else
*ob = obcopy;
}
/* clean up */
if (oblist)
MEM_freeN(oblist);
if (obcopylist)
MEM_freeN(obcopylist);
if (psys->lattice_deform_data) {
end_latt_deform(psys->lattice_deform_data);
psys->lattice_deform_data = NULL;
}
}
static void make_child_duplis_faces(const DupliContext *ctx, void *userdata, Object *inst_ob)
{
FaceDupliData *fdd = userdata;
MPoly *mpoly = fdd->mpoly, *mp;
MLoop *mloop = fdd->mloop;
MVert *mvert = fdd->mvert;
float (*orco)[3] = fdd->orco;
MLoopUV *mloopuv = fdd->mloopuv;
int a, totface = fdd->totface;
bool use_texcoords = ELEM(ctx->eval_ctx->mode, DAG_EVAL_RENDER, DAG_EVAL_PREVIEW);
float child_imat[4][4];
DupliObject *dob;
invert_m4_m4(inst_ob->imat, inst_ob->obmat);
/* relative transform from parent to child space */
mul_m4_m4m4(child_imat, inst_ob->imat, ctx->object->obmat);
for (a = 0, mp = mpoly; a < totface; a++, mp++) {
MLoop *loopstart = mloop + mp->loopstart;
float space_mat[4][4], obmat[4][4];
if (UNLIKELY(mp->totloop < 3))
continue;
/* obmat is transform to face */
get_dupliface_transform(mp, loopstart, mvert, fdd->use_scale, ctx->object->dupfacesca, obmat);
/* make offset relative to inst_ob using relative child transform */
mul_mat3_m4_v3(child_imat, obmat[3]);
/* XXX ugly hack to ensure same behavior as in master
* this should not be needed, parentinv is not consistent
* outside of parenting.
*/
{
float imat[3][3];
copy_m3_m4(imat, inst_ob->parentinv);
mul_m4_m3m4(obmat, imat, obmat);
}
/* apply obmat _after_ the local face transform */
mul_m4_m4m4(obmat, inst_ob->obmat, obmat);
/* space matrix is constructed by removing obmat transform,
* this yields the worldspace transform for recursive duplis
*/
mul_m4_m4m4(space_mat, obmat, inst_ob->imat);
dob = make_dupli(ctx, inst_ob, obmat, a, false, false);
if (use_texcoords) {
float w = 1.0f / (float)mp->totloop;
if (orco) {
int j;
for (j = 0; j < mp->totloop; j++) {
madd_v3_v3fl(dob->orco, orco[loopstart[j].v], w);
}
}
if (mloopuv) {
int j;
for (j = 0; j < mp->totloop; j++) {
madd_v2_v2fl(dob->uv, mloopuv[mp->loopstart + j].uv, w);
}
}
}
/* recursion */
make_recursive_duplis(ctx, inst_ob, space_mat, a, false);
}
}
static void make_duplis_font(const DupliContext *ctx)
{
Object *par = ctx->object;
GHash *family_gh;
Object *ob;
Curve *cu;
struct CharTrans *ct, *chartransdata = NULL;
float vec[3], obmat[4][4], pmat[4][4], fsize, xof, yof;
int text_len, a;
size_t family_len;
const wchar_t *text = NULL;
bool text_free = false;
/* font dupliverts not supported inside groups */
if (ctx->group)
return;
copy_m4_m4(pmat, par->obmat);
/* in par the family name is stored, use this to find the other objects */
BKE_vfont_to_curve_ex(G.main, par, FO_DUPLI, NULL,
&text, &text_len, &text_free, &chartransdata);
if (text == NULL || chartransdata == NULL) {
return;
}
cu = par->data;
fsize = cu->fsize;
xof = cu->xof;
yof = cu->yof;
ct = chartransdata;
/* cache result */
family_len = strlen(cu->family);
family_gh = BLI_ghash_int_new_ex(__func__, 256);
/* advance matching BLI_strncpy_wchar_from_utf8 */
for (a = 0; a < text_len; a++, ct++) {
ob = find_family_object(cu->family, family_len, (unsigned int)text[a], family_gh);
if (ob) {
vec[0] = fsize * (ct->xof - xof);
vec[1] = fsize * (ct->yof - yof);
vec[2] = 0.0;
mul_m4_v3(pmat, vec);
copy_m4_m4(obmat, par->obmat);
if (UNLIKELY(ct->rot != 0.0f)) {
float rmat[4][4];
zero_v3(obmat[3]);
unit_m4(rmat);
rotate_m4(rmat, 'Z', -ct->rot);
mul_m4_m4m4(obmat, obmat, rmat);
}
copy_v3_v3(obmat[3], vec);
make_dupli(ctx, ob, obmat, a, false, false);
}
}
if (text_free) {
MEM_freeN((void *)text);
}
BLI_ghash_free(family_gh, NULL, NULL);
MEM_freeN(chartransdata);
}
/* OB_DUPLIFRAMES */
static void make_duplis_frames(const DupliContext *ctx)
{
Scene *scene = ctx->scene;
Object *ob = ctx->object;
extern int enable_cu_speed; /* object.c */
Object copyob;
int cfrao = scene->r.cfra;
int dupend = ob->dupend;
/* dupliframes not supported inside groups */
if (ctx->group)
return;
/* if we don't have any data/settings which will lead to object movement,
* don't waste time trying, as it will all look the same...
*/
if (ob->parent == NULL && BLI_listbase_is_empty(&ob->constraints) && ob->adt == NULL)
return;
/* make a copy of the object's original data (before any dupli-data overwrites it)
* as we'll need this to keep track of unkeyed data
* - this doesn't take into account other data that can be reached from the object,
* for example it's shapekeys or bones, hence the need for an update flush at the end
*/
copyob = *ob;
/* duplicate over the required range */
if (ob->transflag & OB_DUPLINOSPEED) enable_cu_speed = 0;
/* special flag to avoid setting recalc flags to notify the depsgraph of
* updates, as this is not a permanent change to the object */
ob->id.tag |= LIB_TAG_ANIM_NO_RECALC;
for (scene->r.cfra = ob->dupsta; scene->r.cfra <= dupend; scene->r.cfra++) {
int ok = 1;
/* - dupoff = how often a frames within the range shouldn't be made into duplis
* - dupon = the length of each "skipping" block in frames
*/
if (ob->dupoff) {
ok = scene->r.cfra - ob->dupsta;
ok = ok % (ob->dupon + ob->dupoff);
ok = (ok < ob->dupon);
}
if (ok) {
/* WARNING: doing animation updates in this way is not terribly accurate, as the dependencies
* and/or other objects which may affect this object's transforms are not updated either.
* However, this has always been the way that this worked (i.e. pre 2.5), so I guess that it'll be fine!
*/
BKE_animsys_evaluate_animdata(scene, &ob->id, ob->adt, (float)scene->r.cfra, ADT_RECALC_ANIM); /* ob-eval will do drivers, so we don't need to do them */
BKE_object_where_is_calc_time(scene, ob, (float)scene->r.cfra);
make_dupli(ctx, ob, ob->obmat, scene->r.cfra, false, false);
}
}
enable_cu_speed = 1;
/* reset frame to original frame, then re-evaluate animation as above
* as 2.5 animation data may have far-reaching consequences
*/
scene->r.cfra = cfrao;
BKE_animsys_evaluate_animdata(scene, &ob->id, ob->adt, (float)scene->r.cfra, ADT_RECALC_ANIM); /* ob-eval will do drivers, so we don't need to do them */
BKE_object_where_is_calc_time(scene, ob, (float)scene->r.cfra);
/* but, to make sure unkeyed object transforms are still sane,
* let's copy object's original data back over
*/
*ob = copyob;
}
/* OB_DUPLIGROUP */
static void make_duplis_group(const DupliContext *ctx)
{
bool for_render = (ctx->eval_ctx->mode == DAG_EVAL_RENDER);
Object *ob = ctx->object;
Group *group;
GroupObject *go;
float group_mat[4][4];
int id;
bool animated, hide;
if (ob->dup_group == NULL) return;
group = ob->dup_group;
/* combine group offset and obmat */
unit_m4(group_mat);
sub_v3_v3(group_mat[3], group->dupli_ofs);
mul_m4_m4m4(group_mat, ob->obmat, group_mat);
/* don't access 'ob->obmat' from now on. */
/* handles animated groups */
/* we need to check update for objects that are not in scene... */
if (ctx->do_update) {
/* note: update is optional because we don't always need object
* transformations to be correct. Also fixes bug [#29616]. */
BKE_group_handle_recalc_and_update(ctx->eval_ctx, ctx->scene, ob, group);
}
animated = BKE_group_is_animated(group, ob);
for (go = group->gobject.first, id = 0; go; go = go->next, id++) {
/* note, if you check on layer here, render goes wrong... it still deforms verts and uses parent imat */
if (go->ob != ob) {
float mat[4][4];
/* Special case for instancing dupli-groups, see: T40051
* this object may be instanced via dupli-verts/faces, in this case we don't want to render
* (blender convention), but _do_ show in the viewport.
*
* Regular objects work fine but not if we're instancing dupli-groups,
* because the rules for rendering aren't applied to objects they instance.
* We could recursively pass down the 'hide' flag instead, but that seems unnecessary.
*/
if (for_render && go->ob->parent && go->ob->parent->transflag & (OB_DUPLIVERTS | OB_DUPLIFACES)) {
continue;
}
/* group dupli offset, should apply after everything else */
mul_m4_m4m4(mat, group_mat, go->ob->obmat);
/* check the group instance and object layers match, also that the object visible flags are ok. */
hide = (go->ob->lay & group->layer) == 0 ||
(for_render ? go->ob->restrictflag & OB_RESTRICT_RENDER : go->ob->restrictflag & OB_RESTRICT_VIEW);
make_dupli(ctx, go->ob, mat, id, animated, hide);
/* recursion */
make_recursive_duplis(ctx, go->ob, group_mat, id, animated);
}
}
}