static void InterpCSGFace(
DerivedMesh *dm, DerivedMesh *orig_dm, int index, int orig_index, int nr,
float mapmat[][4])
{
float obco[3], *co[4], *orig_co[4], w[4][4];
MFace *mface, *orig_mface;
int j;
mface = CDDM_get_face(dm, index);
orig_mface = orig_dm->getFaceArray(orig_dm) + orig_index;
// get the vertex coordinates from the original mesh
orig_co[0] = (orig_dm->getVertArray(orig_dm) + orig_mface->v1)->co;
orig_co[1] = (orig_dm->getVertArray(orig_dm) + orig_mface->v2)->co;
orig_co[2] = (orig_dm->getVertArray(orig_dm) + orig_mface->v3)->co;
orig_co[3] = (orig_mface->v4)? (orig_dm->getVertArray(orig_dm) + orig_mface->v4)->co: NULL;
// get the vertex coordinates from the new derivedmesh
co[0] = CDDM_get_vert(dm, mface->v1)->co;
co[1] = CDDM_get_vert(dm, mface->v2)->co;
co[2] = CDDM_get_vert(dm, mface->v3)->co;
co[3] = (nr == 4)? CDDM_get_vert(dm, mface->v4)->co: NULL;
for (j = 0; j < nr; j++) {
// get coordinate into the space of the original mesh
if (mapmat)
mul_v3_m4v3(obco, mapmat, co[j]);
else
copy_v3_v3(obco, co[j]);
interp_weights_face_v3( w[j],orig_co[0], orig_co[1], orig_co[2], orig_co[3], obco);
}
CustomData_interp(&orig_dm->faceData, &dm->faceData, &orig_index, NULL, (float*)w, 1, index);
}
static DerivedMesh *explodeMesh(ExplodeModifierData *emd,
ParticleSystemModifierData *psmd, Scene *scene, Object *ob,
DerivedMesh *to_explode)
{
DerivedMesh *explode, *dm = to_explode;
MFace *mf = NULL, *mface;
/* ParticleSettings *part=psmd->psys->part; */ /* UNUSED */
ParticleSimulationData sim = {NULL};
ParticleData *pa = NULL, *pars = psmd->psys->particles;
ParticleKey state, birth;
EdgeHash *vertpahash;
EdgeHashIterator *ehi;
float *vertco = NULL, imat[4][4];
float rot[4];
float cfra;
/* float timestep; */
const int *facepa = emd->facepa;
int totdup = 0, totvert = 0, totface = 0, totpart = 0, delface = 0;
int i, v, u;
unsigned int ed_v1, ed_v2, mindex = 0;
MTFace *mtface = NULL, *mtf;
totface = dm->getNumTessFaces(dm);
totvert = dm->getNumVerts(dm);
mface = dm->getTessFaceArray(dm);
totpart = psmd->psys->totpart;
sim.scene = scene;
sim.ob = ob;
sim.psys = psmd->psys;
sim.psmd = psmd;
/* timestep = psys_get_timestep(&sim); */
cfra = BKE_scene_frame_get(scene);
/* hash table for vertice <-> particle relations */
vertpahash = BLI_edgehash_new(__func__);
for (i = 0; i < totface; i++) {
if (facepa[i] != totpart) {
pa = pars + facepa[i];
if ((pa->alive == PARS_UNBORN && (emd->flag & eExplodeFlag_Unborn) == 0) ||
(pa->alive == PARS_ALIVE && (emd->flag & eExplodeFlag_Alive) == 0) ||
(pa->alive == PARS_DEAD && (emd->flag & eExplodeFlag_Dead) == 0))
{
delface++;
continue;
}
}
/* do mindex + totvert to ensure the vertex index to be the first
* with BLI_edgehashIterator_getKey */
if (facepa[i] == totpart || cfra < (pars + facepa[i])->time)
mindex = totvert + totpart;
else
mindex = totvert + facepa[i];
mf = &mface[i];
/* set face vertices to exist in particle group */
BLI_edgehash_reinsert(vertpahash, mf->v1, mindex, NULL);
BLI_edgehash_reinsert(vertpahash, mf->v2, mindex, NULL);
BLI_edgehash_reinsert(vertpahash, mf->v3, mindex, NULL);
if (mf->v4)
BLI_edgehash_reinsert(vertpahash, mf->v4, mindex, NULL);
}
/* make new vertice indexes & count total vertices after duplication */
ehi = BLI_edgehashIterator_new(vertpahash);
for (; !BLI_edgehashIterator_isDone(ehi); BLI_edgehashIterator_step(ehi)) {
BLI_edgehashIterator_setValue(ehi, SET_INT_IN_POINTER(totdup));
totdup++;
}
BLI_edgehashIterator_free(ehi);
/* the final duplicated vertices */
explode = CDDM_from_template_ex(dm, totdup, 0, totface - delface, 0, 0, CD_MASK_DERIVEDMESH | CD_MASK_FACECORNERS);
mtface = CustomData_get_layer_named(&explode->faceData, CD_MTFACE, emd->uvname);
/*dupvert = CDDM_get_verts(explode);*/
/* getting back to object space */
invert_m4_m4(imat, ob->obmat);
psmd->psys->lattice_deform_data = psys_create_lattice_deform_data(&sim);
/* duplicate & displace vertices */
ehi = BLI_edgehashIterator_new(vertpahash);
for (; !BLI_edgehashIterator_isDone(ehi); BLI_edgehashIterator_step(ehi)) {
MVert source;
MVert *dest;
/* get particle + vertex from hash */
BLI_edgehashIterator_getKey(ehi, &ed_v1, &ed_v2);
ed_v2 -= totvert;
v = GET_INT_FROM_POINTER(BLI_edgehashIterator_getValue(ehi));
dm->getVert(dm, ed_v1, &source);
dest = CDDM_get_vert(explode, v);
DM_copy_vert_data(dm, explode, ed_v1, v, 1);
*dest = source;
if (ed_v2 != totpart) {
/* get particle */
pa = pars + ed_v2;
psys_get_birth_coords(&sim, pa, &birth, 0, 0);
state.time = cfra;
psys_get_particle_state(&sim, ed_v2, &state, 1);
vertco = CDDM_get_vert(explode, v)->co;
mul_m4_v3(ob->obmat, vertco);
sub_v3_v3(vertco, birth.co);
/* apply rotation, size & location */
sub_qt_qtqt(rot, state.rot, birth.rot);
mul_qt_v3(rot, vertco);
if (emd->flag & eExplodeFlag_PaSize)
mul_v3_fl(vertco, pa->size);
add_v3_v3(vertco, state.co);
mul_m4_v3(imat, vertco);
}
}
BLI_edgehashIterator_free(ehi);
/*map new vertices to faces*/
for (i = 0, u = 0; i < totface; i++) {
MFace source;
int orig_v4;
if (facepa[i] != totpart) {
pa = pars + facepa[i];
if (pa->alive == PARS_UNBORN && (emd->flag & eExplodeFlag_Unborn) == 0) continue;
if (pa->alive == PARS_ALIVE && (emd->flag & eExplodeFlag_Alive) == 0) continue;
if (pa->alive == PARS_DEAD && (emd->flag & eExplodeFlag_Dead) == 0) continue;
}
dm->getTessFace(dm, i, &source);
mf = CDDM_get_tessface(explode, u);
orig_v4 = source.v4;
if (facepa[i] != totpart && cfra < pa->time)
mindex = totvert + totpart;
else
mindex = totvert + facepa[i];
source.v1 = edgecut_get(vertpahash, source.v1, mindex);
source.v2 = edgecut_get(vertpahash, source.v2, mindex);
source.v3 = edgecut_get(vertpahash, source.v3, mindex);
if (source.v4)
source.v4 = edgecut_get(vertpahash, source.v4, mindex);
DM_copy_tessface_data(dm, explode, i, u, 1);
*mf = source;
/* override uv channel for particle age */
if (mtface) {
float age = (cfra - pa->time) / pa->lifetime;
/* Clamp to this range to avoid flipping to the other side of the coordinates. */
CLAMP(age, 0.001f, 0.999f);
mtf = mtface + u;
mtf->uv[0][0] = mtf->uv[1][0] = mtf->uv[2][0] = mtf->uv[3][0] = age;
mtf->uv[0][1] = mtf->uv[1][1] = mtf->uv[2][1] = mtf->uv[3][1] = 0.5f;
}
test_index_face(mf, &explode->faceData, u, (orig_v4 ? 4 : 3));
u++;
}
/* cleanup */
BLI_edgehash_free(vertpahash, NULL);
/* finalization */
CDDM_calc_edges_tessface(explode);
CDDM_tessfaces_to_faces(explode);
explode->dirty |= DM_DIRTY_NORMALS;
if (psmd->psys->lattice_deform_data) {
end_latt_deform(psmd->psys->lattice_deform_data);
psmd->psys->lattice_deform_data = NULL;
}
return explode;
}
static DerivedMesh *cutEdges(ExplodeModifierData *emd, DerivedMesh *dm)
{
DerivedMesh *splitdm;
MFace *mf = NULL, *df1 = NULL;
MFace *mface = dm->getTessFaceArray(dm);
MVert *dupve, *mv;
EdgeHash *edgehash;
EdgeHashIterator *ehi;
int totvert = dm->getNumVerts(dm);
int totface = dm->getNumTessFaces(dm);
int *facesplit = MEM_callocN(sizeof(int) * totface, "explode_facesplit");
int *vertpa = MEM_callocN(sizeof(int) * totvert, "explode_vertpa2");
int *facepa = emd->facepa;
int *fs, totesplit = 0, totfsplit = 0, curdupface = 0;
int i, v1, v2, v3, v4, esplit,
v[4] = {0, 0, 0, 0}, /* To quite gcc barking... */
uv[4] = {0, 0, 0, 0}; /* To quite gcc barking... */
int numlayer;
unsigned int ed_v1, ed_v2;
edgehash = BLI_edgehash_new(__func__);
/* recreate vertpa from facepa calculation */
for (i = 0, mf = mface; i < totface; i++, mf++) {
vertpa[mf->v1] = facepa[i];
vertpa[mf->v2] = facepa[i];
vertpa[mf->v3] = facepa[i];
if (mf->v4)
vertpa[mf->v4] = facepa[i];
}
/* mark edges for splitting and how to split faces */
for (i = 0, mf = mface, fs = facesplit; i < totface; i++, mf++, fs++) {
v1 = vertpa[mf->v1];
v2 = vertpa[mf->v2];
v3 = vertpa[mf->v3];
if (v1 != v2) {
BLI_edgehash_reinsert(edgehash, mf->v1, mf->v2, NULL);
(*fs) |= 1;
}
if (v2 != v3) {
BLI_edgehash_reinsert(edgehash, mf->v2, mf->v3, NULL);
(*fs) |= 2;
}
if (mf->v4) {
v4 = vertpa[mf->v4];
if (v3 != v4) {
BLI_edgehash_reinsert(edgehash, mf->v3, mf->v4, NULL);
(*fs) |= 4;
}
if (v1 != v4) {
BLI_edgehash_reinsert(edgehash, mf->v1, mf->v4, NULL);
(*fs) |= 8;
}
/* mark center vertex as a fake edge split */
if (*fs == 15)
BLI_edgehash_reinsert(edgehash, mf->v1, mf->v3, NULL);
}
else {
(*fs) |= 16; /* mark face as tri */
if (v1 != v3) {
BLI_edgehash_reinsert(edgehash, mf->v1, mf->v3, NULL);
(*fs) |= 4;
}
}
}
/* count splits & create indexes for new verts */
ehi = BLI_edgehashIterator_new(edgehash);
totesplit = totvert;
for (; !BLI_edgehashIterator_isDone(ehi); BLI_edgehashIterator_step(ehi)) {
BLI_edgehashIterator_setValue(ehi, SET_INT_IN_POINTER(totesplit));
totesplit++;
}
BLI_edgehashIterator_free(ehi);
/* count new faces due to splitting */
for (i = 0, fs = facesplit; i < totface; i++, fs++)
totfsplit += add_faces[*fs];
splitdm = CDDM_from_template(dm, totesplit, 0, totface + totfsplit, 0, 0);
numlayer = CustomData_number_of_layers(&splitdm->faceData, CD_MTFACE);
/* copy new faces & verts (is it really this painful with custom data??) */
for (i = 0; i < totvert; i++) {
MVert source;
MVert *dest;
dm->getVert(dm, i, &source);
dest = CDDM_get_vert(splitdm, i);
DM_copy_vert_data(dm, splitdm, i, i, 1);
*dest = source;
}
/* override original facepa (original pointer is saved in caller function) */
/* BMESH_TODO, (totfsplit * 2) over allocation is used since the quads are
* later interpreted as tri's, for this to work right I think we probably
* have to stop using tessface - campbell */
facepa = MEM_callocN(sizeof(int) * (totface + (totfsplit * 2)), "explode_facepa");
//memcpy(facepa, emd->facepa, totface*sizeof(int));
emd->facepa = facepa;
/* create new verts */
ehi = BLI_edgehashIterator_new(edgehash);
for (; !BLI_edgehashIterator_isDone(ehi); BLI_edgehashIterator_step(ehi)) {
BLI_edgehashIterator_getKey(ehi, &ed_v1, &ed_v2);
esplit = GET_INT_FROM_POINTER(BLI_edgehashIterator_getValue(ehi));
mv = CDDM_get_vert(splitdm, ed_v2);
dupve = CDDM_get_vert(splitdm, esplit);
DM_copy_vert_data(splitdm, splitdm, ed_v2, esplit, 1);
*dupve = *mv;
mv = CDDM_get_vert(splitdm, ed_v1);
mid_v3_v3v3(dupve->co, dupve->co, mv->co);
}
BLI_edgehashIterator_free(ehi);
/* create new faces */
curdupface = 0; //=totface;
//curdupin=totesplit;
for (i = 0, fs = facesplit; i < totface; i++, fs++) {
mf = dm->getTessFaceData(dm, i, CD_MFACE);
switch (*fs) {
case 3:
case 10:
case 11:
case 15:
SET_VERTS(1, 2, 3, 4);
break;
case 5:
case 6:
case 7:
SET_VERTS(2, 3, 4, 1);
break;
case 9:
case 13:
SET_VERTS(4, 1, 2, 3);
break;
case 12:
case 14:
SET_VERTS(3, 4, 1, 2);
break;
case 21:
case 23:
SET_VERTS(1, 2, 3, 4);
break;
case 19:
SET_VERTS(2, 3, 1, 4);
break;
case 22:
SET_VERTS(3, 1, 2, 4);
break;
}
switch (*fs) {
case 3:
case 6:
case 9:
case 12:
remap_faces_3_6_9_12(dm, splitdm, mf, facepa, vertpa, i, edgehash, curdupface, v[0], v[1], v[2], v[3]);
if (numlayer)
remap_uvs_3_6_9_12(dm, splitdm, numlayer, i, curdupface, uv[0], uv[1], uv[2], uv[3]);
break;
case 5:
case 10:
remap_faces_5_10(dm, splitdm, mf, facepa, vertpa, i, edgehash, curdupface, v[0], v[1], v[2], v[3]);
if (numlayer)
remap_uvs_5_10(dm, splitdm, numlayer, i, curdupface, uv[0], uv[1], uv[2], uv[3]);
break;
case 15:
remap_faces_15(dm, splitdm, mf, facepa, vertpa, i, edgehash, curdupface, v[0], v[1], v[2], v[3]);
if (numlayer)
remap_uvs_15(dm, splitdm, numlayer, i, curdupface, uv[0], uv[1], uv[2], uv[3]);
break;
case 7:
case 11:
case 13:
case 14:
remap_faces_7_11_13_14(dm, splitdm, mf, facepa, vertpa, i, edgehash, curdupface, v[0], v[1], v[2], v[3]);
if (numlayer)
remap_uvs_7_11_13_14(dm, splitdm, numlayer, i, curdupface, uv[0], uv[1], uv[2], uv[3]);
break;
case 19:
case 21:
case 22:
remap_faces_19_21_22(dm, splitdm, mf, facepa, vertpa, i, edgehash, curdupface, v[0], v[1], v[2]);
if (numlayer)
remap_uvs_19_21_22(dm, splitdm, numlayer, i, curdupface, uv[0], uv[1], uv[2]);
break;
case 23:
remap_faces_23(dm, splitdm, mf, facepa, vertpa, i, edgehash, curdupface, v[0], v[1], v[2]);
if (numlayer)
remap_uvs_23(dm, splitdm, numlayer, i, curdupface, uv[0], uv[1], uv[2]);
break;
case 0:
case 16:
df1 = get_dface(dm, splitdm, curdupface, i, mf);
facepa[curdupface] = vertpa[mf->v1];
if (df1->v4)
df1->flag |= ME_FACE_SEL;
else
df1->flag &= ~ME_FACE_SEL;
break;
}
curdupface += add_faces[*fs] + 1;
}
for (i = 0; i < curdupface; i++) {
mf = CDDM_get_tessface(splitdm, i);
test_index_face(mf, &splitdm->faceData, i, ((mf->flag & ME_FACE_SEL) ? 4 : 3));
}
BLI_edgehash_free(edgehash, NULL);
MEM_freeN(facesplit);
MEM_freeN(vertpa);
CDDM_calc_edges_tessface(splitdm);
CDDM_tessfaces_to_faces(splitdm); /*builds ngon faces from tess (mface) faces*/
return splitdm;
}
static void deformVerts(ModifierData *md, Object *ob,
DerivedMesh *derivedData,
float (*vertexCos)[3],
int UNUSED(numVerts),
int UNUSED(useRenderParams),
int UNUSED(isFinalCalc))
{
SurfaceModifierData *surmd = (SurfaceModifierData*) md;
if(surmd->dm)
surmd->dm->release(surmd->dm);
/* if possible use/create DerivedMesh */
if(derivedData) surmd->dm = CDDM_copy(derivedData);
else surmd->dm = get_dm(ob, NULL, NULL, NULL, 0);
if(!ob->pd)
{
printf("SurfaceModifier deformVerts: Should not happen!\n");
return;
}
if(surmd->dm)
{
unsigned int numverts = 0, i = 0;
int init = 0;
float *vec;
MVert *x, *v;
CDDM_apply_vert_coords(surmd->dm, vertexCos);
CDDM_calc_normals(surmd->dm);
numverts = surmd->dm->getNumVerts ( surmd->dm );
if(numverts != surmd->numverts || surmd->x == NULL || surmd->v == NULL || md->scene->r.cfra != surmd->cfra+1) {
if(surmd->x) {
MEM_freeN(surmd->x);
surmd->x = NULL;
}
if(surmd->v) {
MEM_freeN(surmd->v);
surmd->v = NULL;
}
surmd->x = MEM_callocN(numverts * sizeof(MVert), "MVert");
surmd->v = MEM_callocN(numverts * sizeof(MVert), "MVert");
surmd->numverts = numverts;
init = 1;
}
/* convert to global coordinates and calculate velocity */
for(i = 0, x = surmd->x, v = surmd->v; i<numverts; i++, x++, v++) {
vec = CDDM_get_vert(surmd->dm, i)->co;
mul_m4_v3(ob->obmat, vec);
if(init)
v->co[0] = v->co[1] = v->co[2] = 0.0f;
else
sub_v3_v3v3(v->co, vec, x->co);
copy_v3_v3(x->co, vec);
}
surmd->cfra = md->scene->r.cfra;
if(surmd->bvhtree)
free_bvhtree_from_mesh(surmd->bvhtree);
else
surmd->bvhtree = MEM_callocN(sizeof(BVHTreeFromMesh), "BVHTreeFromMesh");
if(surmd->dm->getNumFaces(surmd->dm))
bvhtree_from_mesh_faces(surmd->bvhtree, surmd->dm, 0.0, 2, 6);
else
bvhtree_from_mesh_edges(surmd->bvhtree, surmd->dm, 0.0, 2, 6);
}
}
static DerivedMesh *applyModifier(ModifierData *md, Object *UNUSED(ob),
DerivedMesh *derivedData,
ModifierApplyFlag UNUSED(flag))
{
DerivedMesh *dm = derivedData;
DerivedMesh *result;
BuildModifierData *bmd = (BuildModifierData *) md;
int i, j, k;
int numFaces_dst, numEdges_dst, numLoops_dst = 0;
int *vertMap, *edgeMap, *faceMap;
float frac;
MPoly *mpoly_dst;
MLoop *ml_dst, *ml_src /*, *mloop_dst */;
GHashIterator *hashIter;
/* maps vert indices in old mesh to indices in new mesh */
GHash *vertHash = BLI_ghash_int_new("build ve apply gh");
/* maps edge indices in new mesh to indices in old mesh */
GHash *edgeHash = BLI_ghash_int_new("build ed apply gh");
GHash *edgeHash2 = BLI_ghash_int_new("build ed apply gh");
const int numVert_src = dm->getNumVerts(dm);
const int numEdge_src = dm->getNumEdges(dm);
const int numPoly_src = dm->getNumPolys(dm);
MPoly *mpoly_src = dm->getPolyArray(dm);
MLoop *mloop_src = dm->getLoopArray(dm);
MEdge *medge_src = dm->getEdgeArray(dm);
MVert *mvert_src = dm->getVertArray(dm);
vertMap = MEM_mallocN(sizeof(*vertMap) * numVert_src, "build modifier vertMap");
edgeMap = MEM_mallocN(sizeof(*edgeMap) * numEdge_src, "build modifier edgeMap");
faceMap = MEM_mallocN(sizeof(*faceMap) * numPoly_src, "build modifier faceMap");
#pragma omp parallel sections if (numVert_src + numEdge_src + numPoly_src >= DM_OMP_LIMIT)
{
#pragma omp section
{ range_vn_i(vertMap, numVert_src, 0); }
#pragma omp section
{ range_vn_i(edgeMap, numEdge_src, 0); }
#pragma omp section
{ range_vn_i(faceMap, numPoly_src, 0); }
}
frac = (BKE_scene_frame_get(md->scene) - bmd->start) / bmd->length;
CLAMP(frac, 0.0f, 1.0f);
numFaces_dst = numPoly_src * frac;
numEdges_dst = numEdge_src * frac;
/* if there's at least one face, build based on faces */
if (numFaces_dst) {
MPoly *mpoly, *mp;
MLoop *ml, *mloop;
MEdge *medge;
if (bmd->randomize) {
BLI_array_randomize(faceMap, sizeof(*faceMap),
numPoly_src, bmd->seed);
}
/* get the set of all vert indices that will be in the final mesh,
* mapped to the new indices
*/
mpoly = mpoly_src;
mloop = mloop_src;
for (i = 0; i < numFaces_dst; i++) {
mp = mpoly + faceMap[i];
ml = mloop + mp->loopstart;
for (j = 0; j < mp->totloop; j++, ml++) {
if (!BLI_ghash_haskey(vertHash, SET_INT_IN_POINTER(ml->v)))
BLI_ghash_insert(vertHash, SET_INT_IN_POINTER(ml->v),
SET_INT_IN_POINTER(BLI_ghash_size(vertHash)));
}
numLoops_dst += mp->totloop;
}
/* get the set of edges that will be in the new mesh (i.e. all edges
* that have both verts in the new mesh)
*/
medge = medge_src;
for (i = 0; i < numEdge_src; i++) {
MEdge *me = medge + i;
if (BLI_ghash_haskey(vertHash, SET_INT_IN_POINTER(me->v1)) &&
BLI_ghash_haskey(vertHash, SET_INT_IN_POINTER(me->v2)))
{
j = BLI_ghash_size(edgeHash);
BLI_ghash_insert(edgeHash, SET_INT_IN_POINTER(j),
SET_INT_IN_POINTER(i));
BLI_ghash_insert(edgeHash2, SET_INT_IN_POINTER(i),
SET_INT_IN_POINTER(j));
}
}
}
else if (numEdges_dst) {
MEdge *medge, *me;
if (bmd->randomize)
BLI_array_randomize(edgeMap, sizeof(*edgeMap),
numEdge_src, bmd->seed);
/* get the set of all vert indices that will be in the final mesh,
* mapped to the new indices
*/
medge = medge_src;
for (i = 0; i < numEdges_dst; i++) {
me = medge + edgeMap[i];
if (!BLI_ghash_haskey(vertHash, SET_INT_IN_POINTER(me->v1))) {
BLI_ghash_insert(vertHash, SET_INT_IN_POINTER(me->v1),
SET_INT_IN_POINTER(BLI_ghash_size(vertHash)));
}
if (!BLI_ghash_haskey(vertHash, SET_INT_IN_POINTER(me->v2))) {
BLI_ghash_insert(vertHash, SET_INT_IN_POINTER(me->v2), SET_INT_IN_POINTER(BLI_ghash_size(vertHash)));
}
}
/* get the set of edges that will be in the new mesh */
for (i = 0; i < numEdges_dst; i++) {
j = BLI_ghash_size(edgeHash);
BLI_ghash_insert(edgeHash, SET_INT_IN_POINTER(j),
SET_INT_IN_POINTER(edgeMap[i]));
BLI_ghash_insert(edgeHash2, SET_INT_IN_POINTER(edgeMap[i]),
SET_INT_IN_POINTER(j));
}
}
else {
int numVerts = numVert_src * frac;
if (bmd->randomize) {
BLI_array_randomize(vertMap, sizeof(*vertMap),
numVert_src, bmd->seed);
}
/* get the set of all vert indices that will be in the final mesh,
* mapped to the new indices
*/
for (i = 0; i < numVerts; i++) {
BLI_ghash_insert(vertHash, SET_INT_IN_POINTER(vertMap[i]), SET_INT_IN_POINTER(i));
}
}
/* now we know the number of verts, edges and faces, we can create
* the mesh
*/
result = CDDM_from_template(dm, BLI_ghash_size(vertHash),
BLI_ghash_size(edgeHash), 0, numLoops_dst, numFaces_dst);
/* copy the vertices across */
for (hashIter = BLI_ghashIterator_new(vertHash);
BLI_ghashIterator_done(hashIter) == false;
BLI_ghashIterator_step(hashIter)
)
{
MVert source;
MVert *dest;
int oldIndex = GET_INT_FROM_POINTER(BLI_ghashIterator_getKey(hashIter));
int newIndex = GET_INT_FROM_POINTER(BLI_ghashIterator_getValue(hashIter));
source = mvert_src[oldIndex];
dest = CDDM_get_vert(result, newIndex);
DM_copy_vert_data(dm, result, oldIndex, newIndex, 1);
*dest = source;
}
BLI_ghashIterator_free(hashIter);
/* copy the edges across, remapping indices */
for (i = 0; i < BLI_ghash_size(edgeHash); i++) {
MEdge source;
MEdge *dest;
int oldIndex = GET_INT_FROM_POINTER(BLI_ghash_lookup(edgeHash, SET_INT_IN_POINTER(i)));
source = medge_src[oldIndex];
dest = CDDM_get_edge(result, i);
source.v1 = GET_INT_FROM_POINTER(BLI_ghash_lookup(vertHash, SET_INT_IN_POINTER(source.v1)));
source.v2 = GET_INT_FROM_POINTER(BLI_ghash_lookup(vertHash, SET_INT_IN_POINTER(source.v2)));
DM_copy_edge_data(dm, result, oldIndex, i, 1);
*dest = source;
}
mpoly_dst = CDDM_get_polys(result);
/* mloop_dst = */ ml_dst = CDDM_get_loops(result);
/* copy the faces across, remapping indices */
k = 0;
for (i = 0; i < numFaces_dst; i++) {
MPoly *source;
MPoly *dest;
source = mpoly_src + faceMap[i];
dest = mpoly_dst + i;
DM_copy_poly_data(dm, result, faceMap[i], i, 1);
*dest = *source;
dest->loopstart = k;
DM_copy_loop_data(dm, result, source->loopstart, dest->loopstart, dest->totloop);
ml_src = mloop_src + source->loopstart;
for (j = 0; j < source->totloop; j++, k++, ml_src++, ml_dst++) {
ml_dst->v = GET_INT_FROM_POINTER(BLI_ghash_lookup(vertHash, SET_INT_IN_POINTER(ml_src->v)));
ml_dst->e = GET_INT_FROM_POINTER(BLI_ghash_lookup(edgeHash2, SET_INT_IN_POINTER(ml_src->e)));
}
}
BLI_ghash_free(vertHash, NULL, NULL);
BLI_ghash_free(edgeHash, NULL, NULL);
BLI_ghash_free(edgeHash2, NULL, NULL);
MEM_freeN(vertMap);
MEM_freeN(edgeMap);
MEM_freeN(faceMap);
if (dm->dirty & DM_DIRTY_NORMALS) {
result->dirty |= DM_DIRTY_NORMALS;
}
return result;
}
static DerivedMesh *doMirrorOnAxis(MirrorModifierData *mmd,
Object *ob,
DerivedMesh *dm,
int axis)
{
int i;
float tolerance = mmd->tolerance;
DerivedMesh *result;
int numVerts, numEdges, numFaces;
int maxVerts = dm->getNumVerts(dm);
int maxEdges = dm->getNumEdges(dm);
int maxFaces = dm->getNumFaces(dm);
int *flip_map= NULL, flip_map_len= 0;
int do_vgroup_mirr= (mmd->flag & MOD_MIR_VGROUP);
unsigned int (*indexMap)[2];
float mtx[4][4], imtx[4][4];
numVerts = numEdges = numFaces = 0;
indexMap = MEM_mallocN(sizeof(*indexMap) * maxVerts, "indexmap");
result = CDDM_from_template(dm, maxVerts * 2, maxEdges * 2, maxFaces * 2);
if (do_vgroup_mirr) {
flip_map= defgroup_flip_map(ob, &flip_map_len, FALSE);
if(flip_map == NULL)
do_vgroup_mirr= 0;
}
if (mmd->mirror_ob) {
float obinv[4][4];
invert_m4_m4(obinv, mmd->mirror_ob->obmat);
mult_m4_m4m4(mtx, obinv, ob->obmat);
invert_m4_m4(imtx, mtx);
}
for(i = 0; i < maxVerts; i++) {
MVert inMV;
MVert *mv = CDDM_get_vert(result, numVerts);
int isShared;
float co[3];
dm->getVert(dm, i, &inMV);
copy_v3_v3(co, inMV.co);
if (mmd->mirror_ob) {
mul_m4_v3(mtx, co);
}
if(mmd->flag & MOD_MIR_NO_MERGE)
isShared = 0;
else
isShared = ABS(co[axis])<=tolerance;
/* Because the topology result (# of vertices) must be the same if
* the mesh data is overridden by vertex cos, have to calc sharedness
* based on original coordinates. This is why we test before copy.
*/
DM_copy_vert_data(dm, result, i, numVerts, 1);
*mv = inMV;
indexMap[i][0] = numVerts;
indexMap[i][1] = !isShared;
numVerts++;
if(isShared ) {
co[axis] = 0.0f;
if (mmd->mirror_ob) {
mul_m4_v3(imtx, co);
}
copy_v3_v3(mv->co, co);
mv->flag |= ME_VERT_MERGED;
}
else {
MVert *mv2 = CDDM_get_vert(result, numVerts);
DM_copy_vert_data(dm, result, i, numVerts, 1);
*mv2 = *mv;
co[axis] = -co[axis];
if (mmd->mirror_ob) {
mul_m4_v3(imtx, co);
}
copy_v3_v3(mv2->co, co);
if (do_vgroup_mirr) {
MDeformVert *dvert= DM_get_vert_data(result, numVerts, CD_MDEFORMVERT);
if(dvert) {
defvert_flip(dvert, flip_map, flip_map_len);
}
}
numVerts++;
}
}
for(i = 0; i < maxEdges; i++) {
MEdge inMED;
MEdge *med = CDDM_get_edge(result, numEdges);
dm->getEdge(dm, i, &inMED);
DM_copy_edge_data(dm, result, i, numEdges, 1);
*med = inMED;
numEdges++;
med->v1 = indexMap[inMED.v1][0];
med->v2 = indexMap[inMED.v2][0];
if(indexMap[inMED.v1][1] || indexMap[inMED.v2][1]) {
MEdge *med2 = CDDM_get_edge(result, numEdges);
DM_copy_edge_data(dm, result, i, numEdges, 1);
*med2 = *med;
numEdges++;
med2->v1 += indexMap[inMED.v1][1];
med2->v2 += indexMap[inMED.v2][1];
}
}
for(i = 0; i < maxFaces; i++) {
MFace inMF;
MFace *mf = CDDM_get_face(result, numFaces);
dm->getFace(dm, i, &inMF);
DM_copy_face_data(dm, result, i, numFaces, 1);
*mf = inMF;
numFaces++;
mf->v1 = indexMap[inMF.v1][0];
mf->v2 = indexMap[inMF.v2][0];
mf->v3 = indexMap[inMF.v3][0];
mf->v4 = indexMap[inMF.v4][0];
if ( indexMap[inMF.v1][1] ||
indexMap[inMF.v2][1] ||
indexMap[inMF.v3][1] ||
(mf->v4 && indexMap[inMF.v4][1]))
{
MFace *mf2 = CDDM_get_face(result, numFaces);
static int corner_indices[4] = {2, 1, 0, 3};
DM_copy_face_data(dm, result, i, numFaces, 1);
*mf2 = *mf;
mf2->v1 += indexMap[inMF.v1][1];
mf2->v2 += indexMap[inMF.v2][1];
mf2->v3 += indexMap[inMF.v3][1];
if(inMF.v4) mf2->v4 += indexMap[inMF.v4][1];
/* mirror UVs if enabled */
if(mmd->flag & (MOD_MIR_MIRROR_U | MOD_MIR_MIRROR_V)) {
MTFace *tf = result->getFaceData(result, numFaces, CD_MTFACE);
if(tf) {
int j;
for(j = 0; j < 4; ++j) {
if(mmd->flag & MOD_MIR_MIRROR_U)
tf->uv[j][0] = 1.0f - tf->uv[j][0];
if(mmd->flag & MOD_MIR_MIRROR_V)
tf->uv[j][1] = 1.0f - tf->uv[j][1];
}
}
}
/* Flip face normal */
SWAP(unsigned int, mf2->v1, mf2->v3);
DM_swap_face_data(result, numFaces, corner_indices);
test_index_face(mf2, &result->faceData, numFaces, inMF.v4?4:3);
numFaces++;
}
}
/* Iterate over the CSG Output Descriptors and create a new DerivedMesh
from them */
static DerivedMesh *ConvertCSGDescriptorsToDerivedMesh(
CSG_FaceIteratorDescriptor *face_it,
CSG_VertexIteratorDescriptor *vertex_it,
float parinv[][4],
float mapmat[][4],
Material **mat,
int *totmat,
DerivedMesh *dm1,
Object *ob1,
DerivedMesh *dm2,
Object *ob2)
{
DerivedMesh *result, *orig_dm;
GHash *material_hash = NULL;
Mesh *me1= (Mesh*)ob1->data;
Mesh *me2= (Mesh*)ob2->data;
int i;
// create a new DerivedMesh
result = CDDM_new(vertex_it->num_elements, 0, face_it->num_elements);
CustomData_merge(&dm1->faceData, &result->faceData, CD_MASK_DERIVEDMESH,
CD_DEFAULT, face_it->num_elements);
CustomData_merge(&dm2->faceData, &result->faceData, CD_MASK_DERIVEDMESH,
CD_DEFAULT, face_it->num_elements);
// step through the vertex iterators:
for (i = 0; !vertex_it->Done(vertex_it->it); i++) {
CSG_IVertex csgvert;
MVert *mvert = CDDM_get_vert(result, i);
// retrieve a csg vertex from the boolean module
vertex_it->Fill(vertex_it->it, &csgvert);
vertex_it->Step(vertex_it->it);
// we have to map the vertex coordinates back in the coordinate frame
// of the resulting object, since it was computed in world space
mul_v3_m4v3(mvert->co, parinv, csgvert.position);
}
// a hash table to remap materials to indices
if (mat) {
material_hash = BLI_ghash_new(BLI_ghashutil_ptrhash, BLI_ghashutil_ptrcmp, "CSG_mat gh");
*totmat = 0;
}
// step through the face iterators
for(i = 0; !face_it->Done(face_it->it); i++) {
Mesh *orig_me;
Object *orig_ob;
Material *orig_mat;
CSG_IFace csgface;
MFace *mface;
int orig_index, mat_nr;
// retrieve a csg face from the boolean module
face_it->Fill(face_it->it, &csgface);
face_it->Step(face_it->it);
// find the original mesh and data
orig_ob = (csgface.orig_face < dm1->getNumFaces(dm1))? ob1: ob2;
orig_dm = (csgface.orig_face < dm1->getNumFaces(dm1))? dm1: dm2;
orig_me = (orig_ob == ob1)? me1: me2;
orig_index = (orig_ob == ob1)? csgface.orig_face: csgface.orig_face - dm1->getNumFaces(dm1);
// copy all face layers, including mface
CustomData_copy_data(&orig_dm->faceData, &result->faceData, orig_index, i, 1);
// set mface
mface = CDDM_get_face(result, i);
mface->v1 = csgface.vertex_index[0];
mface->v2 = csgface.vertex_index[1];
mface->v3 = csgface.vertex_index[2];
mface->v4 = (csgface.vertex_number == 4)? csgface.vertex_index[3]: 0;
// set material, based on lookup in hash table
orig_mat= give_current_material(orig_ob, mface->mat_nr+1);
if (mat && orig_mat) {
if (!BLI_ghash_haskey(material_hash, orig_mat)) {
mat[*totmat] = orig_mat;
mat_nr = mface->mat_nr = (*totmat)++;
BLI_ghash_insert(material_hash, orig_mat, SET_INT_IN_POINTER(mat_nr));
}
else
mface->mat_nr = GET_INT_FROM_POINTER(BLI_ghash_lookup(material_hash, orig_mat));
}
else
mface->mat_nr = 0;
InterpCSGFace(result, orig_dm, i, orig_index, csgface.vertex_number,
(orig_me == me2)? mapmat: NULL);
test_index_face(mface, &result->faceData, i, csgface.vertex_number);
}
if (material_hash)
BLI_ghash_free(material_hash, NULL, NULL);
CDDM_calc_edges(result);
CDDM_calc_normals(result);
return result;
}
static DerivedMesh *applyModifier(ModifierData *md, Object *UNUSED(ob),
DerivedMesh *derivedData,
ModifierApplyFlag UNUSED(flag))
{
DerivedMesh *dm = derivedData;
DerivedMesh *result;
BuildModifierData *bmd = (BuildModifierData *) md;
int i, j, k;
int numFaces_dst, numEdges_dst, numLoops_dst = 0;
int *vertMap, *edgeMap, *faceMap;
float frac;
MPoly *mpoly_dst;
MLoop *ml_dst, *ml_src /*, *mloop_dst */;
GHashIterator gh_iter;
/* maps vert indices in old mesh to indices in new mesh */
GHash *vertHash = BLI_ghash_int_new("build ve apply gh");
/* maps edge indices in new mesh to indices in old mesh */
GHash *edgeHash = BLI_ghash_int_new("build ed apply gh");
GHash *edgeHash2 = BLI_ghash_int_new("build ed apply gh");
const int numVert_src = dm->getNumVerts(dm);
const int numEdge_src = dm->getNumEdges(dm);
const int numPoly_src = dm->getNumPolys(dm);
MPoly *mpoly_src = dm->getPolyArray(dm);
MLoop *mloop_src = dm->getLoopArray(dm);
MEdge *medge_src = dm->getEdgeArray(dm);
MVert *mvert_src = dm->getVertArray(dm);
vertMap = MEM_malloc_arrayN(numVert_src, sizeof(*vertMap), "build modifier vertMap");
edgeMap = MEM_malloc_arrayN(numEdge_src, sizeof(*edgeMap), "build modifier edgeMap");
faceMap = MEM_malloc_arrayN(numPoly_src, sizeof(*faceMap), "build modifier faceMap");
range_vn_i(vertMap, numVert_src, 0);
range_vn_i(edgeMap, numEdge_src, 0);
range_vn_i(faceMap, numPoly_src, 0);
frac = (BKE_scene_frame_get(md->scene) - bmd->start) / bmd->length;
CLAMP(frac, 0.0f, 1.0f);
if (bmd->flag & MOD_BUILD_FLAG_REVERSE) {
frac = 1.0f - frac;
}
numFaces_dst = numPoly_src * frac;
numEdges_dst = numEdge_src * frac;
/* if there's at least one face, build based on faces */
if (numFaces_dst) {
MPoly *mpoly, *mp;
MLoop *ml, *mloop;
MEdge *medge;
uintptr_t hash_num, hash_num_alt;
if (bmd->flag & MOD_BUILD_FLAG_RANDOMIZE) {
BLI_array_randomize(faceMap, sizeof(*faceMap),
numPoly_src, bmd->seed);
}
/* get the set of all vert indices that will be in the final mesh,
* mapped to the new indices
*/
mpoly = mpoly_src;
mloop = mloop_src;
hash_num = 0;
for (i = 0; i < numFaces_dst; i++) {
mp = mpoly + faceMap[i];
ml = mloop + mp->loopstart;
for (j = 0; j < mp->totloop; j++, ml++) {
void **val_p;
if (!BLI_ghash_ensure_p(vertHash, SET_INT_IN_POINTER(ml->v), &val_p)) {
*val_p = (void *)hash_num;
hash_num++;
}
}
numLoops_dst += mp->totloop;
}
BLI_assert(hash_num == BLI_ghash_len(vertHash));
/* get the set of edges that will be in the new mesh (i.e. all edges
* that have both verts in the new mesh)
*/
medge = medge_src;
hash_num = 0;
hash_num_alt = 0;
for (i = 0; i < numEdge_src; i++, hash_num_alt++) {
MEdge *me = medge + i;
if (BLI_ghash_haskey(vertHash, SET_INT_IN_POINTER(me->v1)) &&
BLI_ghash_haskey(vertHash, SET_INT_IN_POINTER(me->v2)))
{
BLI_ghash_insert(edgeHash, (void *)hash_num, (void *)hash_num_alt);
BLI_ghash_insert(edgeHash2, (void *)hash_num_alt, (void *)hash_num);
hash_num++;
}
}
}
else if (numEdges_dst) {
MEdge *medge, *me;
uintptr_t hash_num;
if (bmd->flag & MOD_BUILD_FLAG_RANDOMIZE)
BLI_array_randomize(edgeMap, sizeof(*edgeMap),
numEdge_src, bmd->seed);
/* get the set of all vert indices that will be in the final mesh,
* mapped to the new indices
*/
medge = medge_src;
hash_num = 0;
BLI_assert(hash_num == BLI_ghash_len(vertHash));
for (i = 0; i < numEdges_dst; i++) {
void **val_p;
me = medge + edgeMap[i];
if (!BLI_ghash_ensure_p(vertHash, SET_INT_IN_POINTER(me->v1), &val_p)) {
*val_p = (void *)hash_num;
hash_num++;
}
if (!BLI_ghash_ensure_p(vertHash, SET_INT_IN_POINTER(me->v2), &val_p)) {
*val_p = (void *)hash_num;
hash_num++;
}
}
BLI_assert(hash_num == BLI_ghash_len(vertHash));
/* get the set of edges that will be in the new mesh */
for (i = 0; i < numEdges_dst; i++) {
j = BLI_ghash_len(edgeHash);
BLI_ghash_insert(edgeHash, SET_INT_IN_POINTER(j),
SET_INT_IN_POINTER(edgeMap[i]));
BLI_ghash_insert(edgeHash2, SET_INT_IN_POINTER(edgeMap[i]),
SET_INT_IN_POINTER(j));
}
}
else {
int numVerts = numVert_src * frac;
if (bmd->flag & MOD_BUILD_FLAG_RANDOMIZE) {
BLI_array_randomize(vertMap, sizeof(*vertMap),
numVert_src, bmd->seed);
}
/* get the set of all vert indices that will be in the final mesh,
* mapped to the new indices
*/
for (i = 0; i < numVerts; i++) {
BLI_ghash_insert(vertHash, SET_INT_IN_POINTER(vertMap[i]), SET_INT_IN_POINTER(i));
}
}
/* now we know the number of verts, edges and faces, we can create
* the mesh
*/
result = CDDM_from_template(dm, BLI_ghash_len(vertHash),
BLI_ghash_len(edgeHash), 0, numLoops_dst, numFaces_dst);
/* copy the vertices across */
GHASH_ITER (gh_iter, vertHash) {
MVert source;
MVert *dest;
int oldIndex = GET_INT_FROM_POINTER(BLI_ghashIterator_getKey(&gh_iter));
int newIndex = GET_INT_FROM_POINTER(BLI_ghashIterator_getValue(&gh_iter));
source = mvert_src[oldIndex];
dest = CDDM_get_vert(result, newIndex);
DM_copy_vert_data(dm, result, oldIndex, newIndex, 1);
*dest = source;
}
static DerivedMesh *applyModifier(ModifierData *md, Object *UNUSED(ob),
DerivedMesh *derivedData,
int UNUSED(useRenderParams),
int UNUSED(isFinalCalc))
{
DerivedMesh *dm = derivedData;
DerivedMesh *result;
BuildModifierData *bmd = (BuildModifierData*) md;
int i;
int numFaces, numEdges;
int *vertMap, *edgeMap, *faceMap;
float frac;
GHashIterator *hashIter;
/* maps vert indices in old mesh to indices in new mesh */
GHash *vertHash = BLI_ghash_new(BLI_ghashutil_inthash,
BLI_ghashutil_intcmp, "build ve apply gh");
/* maps edge indices in new mesh to indices in old mesh */
GHash *edgeHash = BLI_ghash_new(BLI_ghashutil_inthash,
BLI_ghashutil_intcmp, "build ed apply gh");
const int maxVerts= dm->getNumVerts(dm);
const int maxEdges= dm->getNumEdges(dm);
const int maxFaces= dm->getNumFaces(dm);
vertMap = MEM_callocN(sizeof(*vertMap) * maxVerts, "build modifier vertMap");
for(i = 0; i < maxVerts; ++i) vertMap[i] = i;
edgeMap = MEM_callocN(sizeof(*edgeMap) * maxEdges, "build modifier edgeMap");
for(i = 0; i < maxEdges; ++i) edgeMap[i] = i;
faceMap = MEM_callocN(sizeof(*faceMap) * maxFaces, "build modifier faceMap");
for(i = 0; i < maxFaces; ++i) faceMap[i] = i;
frac = (BKE_curframe(md->scene) - bmd->start) / bmd->length;
CLAMP(frac, 0.0f, 1.0f);
numFaces = dm->getNumFaces(dm) * frac;
numEdges = dm->getNumEdges(dm) * frac;
/* if there's at least one face, build based on faces */
if(numFaces) {
if(bmd->randomize)
BLI_array_randomize(faceMap, sizeof(*faceMap),
maxFaces, bmd->seed);
/* get the set of all vert indices that will be in the final mesh,
* mapped to the new indices
*/
for(i = 0; i < numFaces; ++i) {
MFace mf;
dm->getFace(dm, faceMap[i], &mf);
if(!BLI_ghash_haskey(vertHash, SET_INT_IN_POINTER(mf.v1)))
BLI_ghash_insert(vertHash, SET_INT_IN_POINTER(mf.v1),
SET_INT_IN_POINTER(BLI_ghash_size(vertHash)));
if(!BLI_ghash_haskey(vertHash, SET_INT_IN_POINTER(mf.v2)))
BLI_ghash_insert(vertHash, SET_INT_IN_POINTER(mf.v2),
SET_INT_IN_POINTER(BLI_ghash_size(vertHash)));
if(!BLI_ghash_haskey(vertHash, SET_INT_IN_POINTER(mf.v3)))
BLI_ghash_insert(vertHash, SET_INT_IN_POINTER(mf.v3),
SET_INT_IN_POINTER(BLI_ghash_size(vertHash)));
if(mf.v4 && !BLI_ghash_haskey(vertHash, SET_INT_IN_POINTER(mf.v4)))
BLI_ghash_insert(vertHash, SET_INT_IN_POINTER(mf.v4),
SET_INT_IN_POINTER(BLI_ghash_size(vertHash)));
}
/* get the set of edges that will be in the new mesh (i.e. all edges
* that have both verts in the new mesh)
*/
for(i = 0; i < maxEdges; ++i) {
MEdge me;
dm->getEdge(dm, i, &me);
if(BLI_ghash_haskey(vertHash, SET_INT_IN_POINTER(me.v1))
&& BLI_ghash_haskey(vertHash, SET_INT_IN_POINTER(me.v2)))
BLI_ghash_insert(edgeHash,
SET_INT_IN_POINTER(BLI_ghash_size(edgeHash)), SET_INT_IN_POINTER(i));
}
} else if(numEdges) {
if(bmd->randomize)
BLI_array_randomize(edgeMap, sizeof(*edgeMap),
maxEdges, bmd->seed);
/* get the set of all vert indices that will be in the final mesh,
* mapped to the new indices
*/
for(i = 0; i < numEdges; ++i) {
MEdge me;
dm->getEdge(dm, edgeMap[i], &me);
if(!BLI_ghash_haskey(vertHash, SET_INT_IN_POINTER(me.v1)))
BLI_ghash_insert(vertHash, SET_INT_IN_POINTER(me.v1),
SET_INT_IN_POINTER(BLI_ghash_size(vertHash)));
if(!BLI_ghash_haskey(vertHash, SET_INT_IN_POINTER(me.v2)))
BLI_ghash_insert(vertHash, SET_INT_IN_POINTER(me.v2),
SET_INT_IN_POINTER(BLI_ghash_size(vertHash)));
}
/* get the set of edges that will be in the new mesh
*/
for(i = 0; i < numEdges; ++i) {
MEdge me;
dm->getEdge(dm, edgeMap[i], &me);
BLI_ghash_insert(edgeHash, SET_INT_IN_POINTER(BLI_ghash_size(edgeHash)),
SET_INT_IN_POINTER(edgeMap[i]));
}
} else {
int numVerts = dm->getNumVerts(dm) * frac;
if(bmd->randomize)
BLI_array_randomize(vertMap, sizeof(*vertMap),
maxVerts, bmd->seed);
/* get the set of all vert indices that will be in the final mesh,
* mapped to the new indices
*/
for(i = 0; i < numVerts; ++i)
BLI_ghash_insert(vertHash, SET_INT_IN_POINTER(vertMap[i]), SET_INT_IN_POINTER(i));
}
/* now we know the number of verts, edges and faces, we can create
* the mesh
*/
result = CDDM_from_template(dm, BLI_ghash_size(vertHash),
BLI_ghash_size(edgeHash), numFaces);
/* copy the vertices across */
for( hashIter = BLI_ghashIterator_new(vertHash);
!BLI_ghashIterator_isDone(hashIter);
BLI_ghashIterator_step(hashIter)
) {
MVert source;
MVert *dest;
int oldIndex = GET_INT_FROM_POINTER(BLI_ghashIterator_getKey(hashIter));
int newIndex = GET_INT_FROM_POINTER(BLI_ghashIterator_getValue(hashIter));
dm->getVert(dm, oldIndex, &source);
dest = CDDM_get_vert(result, newIndex);
DM_copy_vert_data(dm, result, oldIndex, newIndex, 1);
*dest = source;
}
BLI_ghashIterator_free(hashIter);
/* copy the edges across, remapping indices */
for(i = 0; i < BLI_ghash_size(edgeHash); ++i) {
MEdge source;
MEdge *dest;
int oldIndex = GET_INT_FROM_POINTER(BLI_ghash_lookup(edgeHash, SET_INT_IN_POINTER(i)));
dm->getEdge(dm, oldIndex, &source);
dest = CDDM_get_edge(result, i);
source.v1 = GET_INT_FROM_POINTER(BLI_ghash_lookup(vertHash, SET_INT_IN_POINTER(source.v1)));
source.v2 = GET_INT_FROM_POINTER(BLI_ghash_lookup(vertHash, SET_INT_IN_POINTER(source.v2)));
DM_copy_edge_data(dm, result, oldIndex, i, 1);
*dest = source;
}
/* copy the faces across, remapping indices */
for(i = 0; i < numFaces; ++i) {
MFace source;
MFace *dest;
int orig_v4;
dm->getFace(dm, faceMap[i], &source);
dest = CDDM_get_face(result, i);
orig_v4 = source.v4;
source.v1 = GET_INT_FROM_POINTER(BLI_ghash_lookup(vertHash, SET_INT_IN_POINTER(source.v1)));
source.v2 = GET_INT_FROM_POINTER(BLI_ghash_lookup(vertHash, SET_INT_IN_POINTER(source.v2)));
source.v3 = GET_INT_FROM_POINTER(BLI_ghash_lookup(vertHash, SET_INT_IN_POINTER(source.v3)));
if(source.v4)
source.v4 = GET_INT_FROM_POINTER(BLI_ghash_lookup(vertHash, SET_INT_IN_POINTER(source.v4)));
DM_copy_face_data(dm, result, faceMap[i], i, 1);
*dest = source;
test_index_face(dest, &result->faceData, i, (orig_v4 ? 4 : 3));
}
CDDM_calc_normals(result);
BLI_ghash_free(vertHash, NULL, NULL);
BLI_ghash_free(edgeHash, NULL, NULL);
MEM_freeN(vertMap);
MEM_freeN(edgeMap);
MEM_freeN(faceMap);
return result;
}
static DerivedMesh *applyModifier(ModifierData *md, Object *ob,
DerivedMesh *derivedData,
int UNUSED(useRenderParams),
int UNUSED(isFinalCalc))
{
MaskModifierData *mmd= (MaskModifierData *)md;
DerivedMesh *dm= derivedData, *result= NULL;
GHash *vertHash=NULL, *edgeHash, *faceHash;
GHashIterator *hashIter;
MDeformVert *dvert= NULL, *dv;
int numFaces=0, numEdges=0, numVerts=0;
int maxVerts, maxEdges, maxFaces;
int i;
/* Overview of Method:
* 1. Get the vertices that are in the vertexgroup of interest
* 2. Filter out unwanted geometry (i.e. not in vertexgroup), by populating mappings with new vs old indices
* 3. Make a new mesh containing only the mapping data
*/
/* get original number of verts, edges, and faces */
maxVerts= dm->getNumVerts(dm);
maxEdges= dm->getNumEdges(dm);
maxFaces= dm->getNumFaces(dm);
/* check if we can just return the original mesh
* - must have verts and therefore verts assigned to vgroups to do anything useful
*/
if ( !(ELEM(mmd->mode, MOD_MASK_MODE_ARM, MOD_MASK_MODE_VGROUP)) ||
(maxVerts == 0) || (ob->defbase.first == NULL) )
{
return derivedData;
}
/* if mode is to use selected armature bones, aggregate the bone groups */
if (mmd->mode == MOD_MASK_MODE_ARM) /* --- using selected bones --- */
{
GHash *vgroupHash;
Object *oba= mmd->ob_arm;
bPoseChannel *pchan;
bDeformGroup *def;
char *bone_select_array;
int bone_select_tot= 0;
/* check that there is armature object with bones to use, otherwise return original mesh */
if (ELEM3(NULL, mmd->ob_arm, mmd->ob_arm->pose, ob->defbase.first))
return derivedData;
bone_select_array= MEM_mallocN(BLI_countlist(&ob->defbase) * sizeof(char), "mask array");
for (i = 0, def = ob->defbase.first; def; def = def->next, i++)
{
if (((pchan= get_pose_channel(oba->pose, def->name)) && pchan->bone && (pchan->bone->flag & BONE_SELECTED)))
{
bone_select_array[i]= TRUE;
bone_select_tot++;
}
else {
bone_select_array[i]= FALSE;
}
}
/* hashes for finding mapping of:
* - vgroups to indices -> vgroupHash (string, int)
* - bones to vgroup indices -> boneHash (index of vgroup, dummy)
*/
vgroupHash= BLI_ghash_new(BLI_ghashutil_strhash, BLI_ghashutil_strcmp, "mask vgroup gh");
/* build mapping of names of vertex groups to indices */
for (i = 0, def = ob->defbase.first; def; def = def->next, i++)
BLI_ghash_insert(vgroupHash, def->name, SET_INT_IN_POINTER(i));
/* if no bones selected, free hashes and return original mesh */
if (bone_select_tot == 0)
{
BLI_ghash_free(vgroupHash, NULL, NULL);
MEM_freeN(bone_select_array);
return derivedData;
}
/* repeat the previous check, but for dverts */
dvert= dm->getVertDataArray(dm, CD_MDEFORMVERT);
if (dvert == NULL)
{
BLI_ghash_free(vgroupHash, NULL, NULL);
MEM_freeN(bone_select_array);
return derivedData;
}
/* hashes for quickly providing a mapping from old to new - use key=oldindex, value=newindex */
vertHash= BLI_ghash_new(BLI_ghashutil_inthash, BLI_ghashutil_intcmp, "mask vert gh");
/* add vertices which exist in vertexgroups into vertHash for filtering */
for (i= 0, dv= dvert; i < maxVerts; i++, dv++)
{
MDeformWeight *dw= dv->dw;
int j;
for (j= dv->totweight; j > 0; j--, dw++)
{
if (bone_select_array[dw->def_nr])
{
if(dw->weight != 0.0f) {
break;
}
}
}
/* check if include vert in vertHash */
if (mmd->flag & MOD_MASK_INV) {
/* if this vert is in the vgroup, don't include it in vertHash */
if (dw) continue;
}
else {
/* if this vert isn't in the vgroup, don't include it in vertHash */
if (!dw) continue;
}
/* add to ghash for verts (numVerts acts as counter for mapping) */
BLI_ghash_insert(vertHash, SET_INT_IN_POINTER(i), SET_INT_IN_POINTER(numVerts));
numVerts++;
}
/* free temp hashes */
BLI_ghash_free(vgroupHash, NULL, NULL);
MEM_freeN(bone_select_array);
}
else /* --- Using Nominated VertexGroup only --- */
{
int defgrp_index = defgroup_name_index(ob, mmd->vgroup);
/* get dverts */
if (defgrp_index >= 0)
dvert = dm->getVertDataArray(dm, CD_MDEFORMVERT);
/* if no vgroup (i.e. dverts) found, return the initial mesh */
if ((defgrp_index < 0) || (dvert == NULL))
return dm;
/* hashes for quickly providing a mapping from old to new - use key=oldindex, value=newindex */
vertHash= BLI_ghash_new(BLI_ghashutil_inthash, BLI_ghashutil_intcmp, "mask vert2 bh");
/* add vertices which exist in vertexgroup into ghash for filtering */
for (i= 0, dv= dvert; i < maxVerts; i++, dv++)
{
const int weight_set= defvert_find_weight(dv, defgrp_index) != 0.0f;
/* check if include vert in vertHash */
if (mmd->flag & MOD_MASK_INV) {
/* if this vert is in the vgroup, don't include it in vertHash */
if (weight_set) continue;
}
else {
/* if this vert isn't in the vgroup, don't include it in vertHash */
if (!weight_set) continue;
}
/* add to ghash for verts (numVerts acts as counter for mapping) */
BLI_ghash_insert(vertHash, SET_INT_IN_POINTER(i), SET_INT_IN_POINTER(numVerts));
numVerts++;
}
}
/* hashes for quickly providing a mapping from old to new - use key=oldindex, value=newindex */
edgeHash= BLI_ghash_new(BLI_ghashutil_inthash, BLI_ghashutil_intcmp, "mask ed2 gh");
faceHash= BLI_ghash_new(BLI_ghashutil_inthash, BLI_ghashutil_intcmp, "mask fa2 gh");
/* loop over edges and faces, and do the same thing to
* ensure that they only reference existing verts
*/
for (i = 0; i < maxEdges; i++)
{
MEdge me;
dm->getEdge(dm, i, &me);
/* only add if both verts will be in new mesh */
if ( BLI_ghash_haskey(vertHash, SET_INT_IN_POINTER(me.v1)) &&
BLI_ghash_haskey(vertHash, SET_INT_IN_POINTER(me.v2)) )
{
BLI_ghash_insert(edgeHash, SET_INT_IN_POINTER(i), SET_INT_IN_POINTER(numEdges));
numEdges++;
}
}
for (i = 0; i < maxFaces; i++)
{
MFace mf;
dm->getFace(dm, i, &mf);
/* all verts must be available */
if ( BLI_ghash_haskey(vertHash, SET_INT_IN_POINTER(mf.v1)) &&
BLI_ghash_haskey(vertHash, SET_INT_IN_POINTER(mf.v2)) &&
BLI_ghash_haskey(vertHash, SET_INT_IN_POINTER(mf.v3)) &&
(mf.v4==0 || BLI_ghash_haskey(vertHash, SET_INT_IN_POINTER(mf.v4))) )
{
BLI_ghash_insert(faceHash, SET_INT_IN_POINTER(i), SET_INT_IN_POINTER(numFaces));
numFaces++;
}
}
/* now we know the number of verts, edges and faces,
* we can create the new (reduced) mesh
*/
result = CDDM_from_template(dm, numVerts, numEdges, numFaces);
/* using ghash-iterators, map data into new mesh */
/* vertices */
for ( hashIter = BLI_ghashIterator_new(vertHash);
!BLI_ghashIterator_isDone(hashIter);
BLI_ghashIterator_step(hashIter) )
{
MVert source;
MVert *dest;
int oldIndex = GET_INT_FROM_POINTER(BLI_ghashIterator_getKey(hashIter));
int newIndex = GET_INT_FROM_POINTER(BLI_ghashIterator_getValue(hashIter));
dm->getVert(dm, oldIndex, &source);
dest = CDDM_get_vert(result, newIndex);
DM_copy_vert_data(dm, result, oldIndex, newIndex, 1);
*dest = source;
}
BLI_ghashIterator_free(hashIter);
/* edges */
for ( hashIter = BLI_ghashIterator_new(edgeHash);
!BLI_ghashIterator_isDone(hashIter);
BLI_ghashIterator_step(hashIter) )
{
MEdge source;
MEdge *dest;
int oldIndex = GET_INT_FROM_POINTER(BLI_ghashIterator_getKey(hashIter));
int newIndex = GET_INT_FROM_POINTER(BLI_ghashIterator_getValue(hashIter));
dm->getEdge(dm, oldIndex, &source);
dest = CDDM_get_edge(result, newIndex);
source.v1 = GET_INT_FROM_POINTER(BLI_ghash_lookup(vertHash, SET_INT_IN_POINTER(source.v1)));
source.v2 = GET_INT_FROM_POINTER(BLI_ghash_lookup(vertHash, SET_INT_IN_POINTER(source.v2)));
DM_copy_edge_data(dm, result, oldIndex, newIndex, 1);
*dest = source;
}
BLI_ghashIterator_free(hashIter);
/* faces */
for ( hashIter = BLI_ghashIterator_new(faceHash);
!BLI_ghashIterator_isDone(hashIter);
BLI_ghashIterator_step(hashIter) )
{
MFace source;
MFace *dest;
int oldIndex = GET_INT_FROM_POINTER(BLI_ghashIterator_getKey(hashIter));
int newIndex = GET_INT_FROM_POINTER(BLI_ghashIterator_getValue(hashIter));
int orig_v4;
dm->getFace(dm, oldIndex, &source);
dest = CDDM_get_face(result, newIndex);
orig_v4 = source.v4;
source.v1 = GET_INT_FROM_POINTER(BLI_ghash_lookup(vertHash, SET_INT_IN_POINTER(source.v1)));
source.v2 = GET_INT_FROM_POINTER(BLI_ghash_lookup(vertHash, SET_INT_IN_POINTER(source.v2)));
source.v3 = GET_INT_FROM_POINTER(BLI_ghash_lookup(vertHash, SET_INT_IN_POINTER(source.v3)));
if (source.v4)
source.v4 = GET_INT_FROM_POINTER(BLI_ghash_lookup(vertHash, SET_INT_IN_POINTER(source.v4)));
DM_copy_face_data(dm, result, oldIndex, newIndex, 1);
*dest = source;
test_index_face(dest, &result->faceData, newIndex, (orig_v4 ? 4 : 3));
}
BLI_ghashIterator_free(hashIter);
/* recalculate normals */
CDDM_calc_normals(result);
/* free hashes */
BLI_ghash_free(vertHash, NULL, NULL);
BLI_ghash_free(edgeHash, NULL, NULL);
BLI_ghash_free(faceHash, NULL, NULL);
/* return the new mesh */
return result;
}
static void connect_hair(Scene *scene, Object *ob, ParticleSystem *psys)
{
ParticleSystemModifierData *psmd = psys_get_modifier(ob,psys);
ParticleData *pa;
PTCacheEdit *edit;
PTCacheEditPoint *point;
PTCacheEditKey *ekey = NULL;
HairKey *key;
BVHTreeFromMesh bvhtree= {NULL};
BVHTreeNearest nearest;
MFace *mface;
DerivedMesh *dm = NULL;
int numverts;
int i, k;
float hairmat[4][4], imat[4][4];
float v[4][3], vec[3];
if(!psys || !psys->part || psys->part->type != PART_HAIR)
return;
edit= psys->edit;
point= edit ? edit->points : NULL;
if(psmd->dm->deformedOnly)
/* we don't want to mess up psmd->dm when converting to global coordinates below */
dm= CDDM_copy(psmd->dm);
else
dm= mesh_get_derived_deform(scene, ob, CD_MASK_BAREMESH);
numverts = dm->getNumVerts (dm);
/* convert to global coordinates */
for (i=0; i<numverts; i++)
mul_m4_v3(ob->obmat, CDDM_get_vert(dm, i)->co);
bvhtree_from_mesh_faces(&bvhtree, dm, 0.0, 2, 6);
for(i=0, pa= psys->particles; i<psys->totpart; i++,pa++) {
key = pa->hair;
nearest.index = -1;
nearest.dist = FLT_MAX;
BLI_bvhtree_find_nearest(bvhtree.tree, key->co, &nearest, bvhtree.nearest_callback, &bvhtree);
if(nearest.index == -1) {
if (G.f & G_DEBUG)
printf("No nearest point found for hair root!");
continue;
}
mface = CDDM_get_face(dm,nearest.index);
copy_v3_v3(v[0], CDDM_get_vert(dm,mface->v1)->co);
copy_v3_v3(v[1], CDDM_get_vert(dm,mface->v2)->co);
copy_v3_v3(v[2], CDDM_get_vert(dm,mface->v3)->co);
if(mface->v4) {
copy_v3_v3(v[3], CDDM_get_vert(dm,mface->v4)->co);
interp_weights_poly_v3( pa->fuv,v, 4, nearest.co);
}
else
interp_weights_poly_v3( pa->fuv,v, 3, nearest.co);
pa->num = nearest.index;
pa->num_dmcache = psys_particle_dm_face_lookup(ob,psmd->dm,pa->num,pa->fuv,NULL);
psys_mat_hair_to_global(ob, psmd->dm, psys->part->from, pa, hairmat);
invert_m4_m4(imat,hairmat);
VECSUB(vec, nearest.co, key->co);
if(point) {
ekey = point->keys;
point++;
}
for(k=0,key=pa->hair; k<pa->totkey; k++,key++) {
VECADD(key->co, key->co, vec);
mul_m4_v3(imat,key->co);
if(ekey) {
ekey->flag |= PEK_USE_WCO;
ekey++;
}
}
}
free_bvhtree_from_mesh(&bvhtree);
dm->release(dm);
psys_free_path_cache(psys, psys->edit);
psys->flag &= ~PSYS_GLOBAL_HAIR;
PE_update_object(scene, ob, 0);
}
