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path: root/source/blender/blenkernel/intern/mesh_convert.cc
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Diffstat (limited to 'source/blender/blenkernel/intern/mesh_convert.cc')
-rw-r--r--source/blender/blenkernel/intern/mesh_convert.cc241
1 files changed, 54 insertions, 187 deletions
diff --git a/source/blender/blenkernel/intern/mesh_convert.cc b/source/blender/blenkernel/intern/mesh_convert.cc
index 81bab9f796f..393d54bb03e 100644
--- a/source/blender/blenkernel/intern/mesh_convert.cc
+++ b/source/blender/blenkernel/intern/mesh_convert.cc
@@ -22,6 +22,7 @@
#include "BLI_index_range.hh"
#include "BLI_listbase.h"
#include "BLI_math.h"
+#include "BLI_span.hh"
#include "BLI_string.h"
#include "BLI_utildefines.h"
@@ -54,6 +55,8 @@
#include "DEG_depsgraph_query.h"
using blender::IndexRange;
+using blender::MutableSpan;
+using blender::Span;
/* Define for cases when you want extra validation of mesh
* after certain modifications.
@@ -69,87 +72,31 @@ using blender::IndexRange;
static CLG_LogRef LOG = {"bke.mesh_convert"};
-void BKE_mesh_from_metaball(ListBase *lb, Mesh *me)
-{
- DispList *dl;
- MVert *mvert;
- MLoop *mloop, *allloop;
- MPoly *mpoly;
- int a, *index;
-
- dl = (DispList *)lb->first;
- if (dl == nullptr) {
- return;
- }
-
- if (dl->type == DL_INDEX4) {
- mvert = (MVert *)CustomData_add_layer(&me->vdata, CD_MVERT, CD_CALLOC, nullptr, dl->nr);
- allloop = mloop = (MLoop *)CustomData_add_layer(
- &me->ldata, CD_MLOOP, CD_CALLOC, nullptr, dl->parts * 4);
- mpoly = (MPoly *)CustomData_add_layer(&me->pdata, CD_MPOLY, CD_CALLOC, nullptr, dl->parts);
- me->mvert = mvert;
- me->mloop = mloop;
- me->mpoly = mpoly;
- me->totvert = dl->nr;
- me->totpoly = dl->parts;
-
- for (const int i : IndexRange(dl->nr)) {
- copy_v3_v3(me->mvert[i].co, &dl->verts[3 * i]);
- }
-
- a = dl->parts;
- index = dl->index;
- while (a--) {
- int count = index[2] != index[3] ? 4 : 3;
-
- mloop[0].v = index[0];
- mloop[1].v = index[1];
- mloop[2].v = index[2];
- if (count == 4) {
- mloop[3].v = index[3];
- }
-
- mpoly->totloop = count;
- mpoly->loopstart = (int)(mloop - allloop);
- mpoly->flag = ME_SMOOTH;
-
- mpoly++;
- mloop += count;
- me->totloop += count;
- index += 4;
- }
-
- BKE_mesh_update_customdata_pointers(me, true);
- BKE_mesh_calc_edges(me, true, false);
- }
-}
-
/**
* Specialized function to use when we _know_ existing edges don't overlap with poly edges.
*/
-static void make_edges_mdata_extend(
- MEdge **r_alledge, int *r_totedge, const MPoly *mpoly, MLoop *mloop, const int totpoly)
+static void make_edges_mdata_extend(Mesh &mesh)
{
- int totedge = *r_totedge;
- int totedge_new;
- EdgeHash *eh;
- uint eh_reserve;
+ int totedge = mesh.totedge;
const MPoly *mp;
int i;
- eh_reserve = max_ii(totedge, BLI_EDGEHASH_SIZE_GUESS_FROM_POLYS(totpoly));
- eh = BLI_edgehash_new_ex(__func__, eh_reserve);
+ Span<MPoly> polys(mesh.mpoly, mesh.totpoly);
+ MutableSpan<MLoop> loops(mesh.mloop, mesh.totloop);
- for (i = 0, mp = mpoly; i < totpoly; i++, mp++) {
- BKE_mesh_poly_edgehash_insert(eh, mp, mloop + mp->loopstart);
+ const int eh_reserve = max_ii(totedge, BLI_EDGEHASH_SIZE_GUESS_FROM_POLYS(mesh.totpoly));
+ EdgeHash *eh = BLI_edgehash_new_ex(__func__, eh_reserve);
+
+ for (const MPoly &poly : polys) {
+ BKE_mesh_poly_edgehash_insert(eh, &poly, &loops[poly.loopstart]);
}
- totedge_new = BLI_edgehash_len(eh);
+ const int totedge_new = BLI_edgehash_len(eh);
#ifdef DEBUG
/* ensure that there's no overlap! */
if (totedge_new) {
- MEdge *medge = *r_alledge;
+ MEdge *medge = mesh.medge;
for (i = 0; i < totedge; i++, medge++) {
BLI_assert(BLI_edgehash_haskey(eh, medge->v1, medge->v2) == false);
}
@@ -157,19 +104,15 @@ static void make_edges_mdata_extend(
#endif
if (totedge_new) {
- EdgeHashIterator *ehi;
- MEdge *medge;
- uint e_index = totedge;
+ CustomData_realloc(&mesh.edata, totedge + totedge_new);
+ BKE_mesh_update_customdata_pointers(&mesh, false);
- *r_alledge = medge = (MEdge *)(*r_alledge ?
- MEM_reallocN(*r_alledge,
- sizeof(MEdge) * (totedge + totedge_new)) :
- MEM_calloc_arrayN(totedge_new, sizeof(MEdge), __func__));
- medge += totedge;
+ MEdge *medge = mesh.medge + totedge;
- totedge += totedge_new;
+ mesh.totedge += totedge_new;
- /* --- */
+ EdgeHashIterator *ehi;
+ uint e_index = totedge;
for (ehi = BLI_edgehashIterator_new(eh); BLI_edgehashIterator_isDone(ehi) == false;
BLI_edgehashIterator_step(ehi), ++medge, e_index++) {
BLI_edgehashIterator_getKey(ehi, &medge->v1, &medge->v2);
@@ -180,10 +123,8 @@ static void make_edges_mdata_extend(
}
BLI_edgehashIterator_free(ehi);
- *r_totedge = totedge;
-
- for (i = 0, mp = mpoly; i < totpoly; i++, mp++) {
- MLoop *l = &mloop[mp->loopstart];
+ for (i = 0, mp = mesh.mpoly; i < mesh.totpoly; i++, mp++) {
+ MLoop *l = &loops[mp->loopstart];
MLoop *l_prev = (l + (mp->totloop - 1));
int j;
for (j = 0; j < mp->totloop; j++, l++) {
@@ -197,25 +138,9 @@ static void make_edges_mdata_extend(
BLI_edgehash_free(eh, nullptr);
}
-/* Initialize mverts, medges and, faces for converting nurbs to mesh and derived mesh */
-/* use specified dispbase */
-static int mesh_nurbs_displist_to_mdata(const Curve *cu,
- const ListBase *dispbase,
- MVert **r_allvert,
- int *r_totvert,
- MEdge **r_alledge,
- int *r_totedge,
- MLoop **r_allloop,
- MPoly **r_allpoly,
- MLoopUV **r_alluv,
- int *r_totloop,
- int *r_totpoly)
+static Mesh *mesh_nurbs_displist_to_mesh(const Curve *cu, const ListBase *dispbase)
{
- MVert *mvert;
- MPoly *mpoly;
- MLoop *mloop;
- MLoopUV *mloopuv = nullptr;
- MEdge *medge;
+ using namespace blender::bke;
const float *data;
int a, b, ofs, vertcount, startvert, totvert = 0, totedge = 0, totloop = 0, totpoly = 0;
int p1, p2, p3, p4, *index;
@@ -257,21 +182,24 @@ static int mesh_nurbs_displist_to_mdata(const Curve *cu,
}
if (totvert == 0) {
- /* Make Sure you check ob->data is a curve. */
- // error("can't convert");
- return -1;
+ return BKE_mesh_new_nomain(0, 0, 0, 0, 0);
}
- *r_allvert = mvert = (MVert *)MEM_calloc_arrayN(totvert, sizeof(MVert), "nurbs_init mvert");
- *r_alledge = medge = (MEdge *)MEM_calloc_arrayN(totedge, sizeof(MEdge), "nurbs_init medge");
- *r_allloop = mloop = (MLoop *)MEM_calloc_arrayN(
- totpoly, sizeof(MLoop[4]), "nurbs_init mloop"); /* totloop */
- *r_allpoly = mpoly = (MPoly *)MEM_calloc_arrayN(totpoly, sizeof(MPoly), "nurbs_init mloop");
+ Mesh *mesh = BKE_mesh_new_nomain(totvert, totedge, 0, totloop, totpoly);
+ MutableSpan<MVert> verts(mesh->mvert, mesh->totvert);
+ MutableSpan<MEdge> edges(mesh->medge, mesh->totedge);
+ MutableSpan<MPoly> polys(mesh->mpoly, mesh->totpoly);
+ MutableSpan<MLoop> loops(mesh->mloop, mesh->totloop);
- if (r_alluv) {
- *r_alluv = mloopuv = (MLoopUV *)MEM_calloc_arrayN(
- totpoly, sizeof(MLoopUV[4]), "nurbs_init mloopuv");
- }
+ MVert *mvert = verts.data();
+ MEdge *medge = edges.data();
+ MPoly *mpoly = polys.data();
+ MLoop *mloop = loops.data();
+ MutableAttributeAccessor attributes = mesh_attributes_for_write(*mesh);
+ SpanAttributeWriter<int> material_indices = attributes.lookup_or_add_for_write_only_span<int>(
+ "material_index", ATTR_DOMAIN_FACE);
+ MLoopUV *mloopuv = static_cast<MLoopUV *>(CustomData_add_layer_named(
+ &mesh->ldata, CD_MLOOPUV, CD_SET_DEFAULT, nullptr, mesh->totloop, "UVMap"));
/* verts and faces */
vertcount = 0;
@@ -346,9 +274,9 @@ static int mesh_nurbs_displist_to_mdata(const Curve *cu,
mloop[0].v = startvert + index[0];
mloop[1].v = startvert + index[2];
mloop[2].v = startvert + index[1];
- mpoly->loopstart = (int)(mloop - (*r_allloop));
+ mpoly->loopstart = (int)(mloop - loops.data());
mpoly->totloop = 3;
- mpoly->mat_nr = dl->col;
+ material_indices.span[mpoly - polys.data()] = dl->col;
if (mloopuv) {
for (int i = 0; i < 3; i++, mloopuv++) {
@@ -406,9 +334,9 @@ static int mesh_nurbs_displist_to_mdata(const Curve *cu,
mloop[1].v = p3;
mloop[2].v = p4;
mloop[3].v = p2;
- mpoly->loopstart = (int)(mloop - (*r_allloop));
+ mpoly->loopstart = (int)(mloop - loops.data());
mpoly->totloop = 4;
- mpoly->mat_nr = dl->col;
+ material_indices.span[mpoly - polys.data()] = dl->col;
if (mloopuv) {
int orco_sizeu = dl->nr - 1;
@@ -458,15 +386,12 @@ static int mesh_nurbs_displist_to_mdata(const Curve *cu,
}
if (totpoly) {
- make_edges_mdata_extend(r_alledge, &totedge, *r_allpoly, *r_allloop, totpoly);
+ make_edges_mdata_extend(*mesh);
}
- *r_totpoly = totpoly;
- *r_totloop = totloop;
- *r_totedge = totedge;
- *r_totvert = totvert;
+ material_indices.finish();
- return 0;
+ return mesh;
}
/**
@@ -487,60 +412,12 @@ static void mesh_copy_texture_space_from_curve_type(const Curve *cu, Mesh *me)
Mesh *BKE_mesh_new_nomain_from_curve_displist(const Object *ob, const ListBase *dispbase)
{
const Curve *cu = (const Curve *)ob->data;
- Mesh *mesh;
- MVert *allvert;
- MEdge *alledge;
- MLoop *allloop;
- MPoly *allpoly;
- MLoopUV *alluv = nullptr;
- int totvert, totedge, totloop, totpoly;
-
- if (mesh_nurbs_displist_to_mdata(cu,
- dispbase,
- &allvert,
- &totvert,
- &alledge,
- &totedge,
- &allloop,
- &allpoly,
- &alluv,
- &totloop,
- &totpoly) != 0) {
- /* Error initializing mdata. This often happens when curve is empty */
- return BKE_mesh_new_nomain(0, 0, 0, 0, 0);
- }
-
- mesh = BKE_mesh_new_nomain(totvert, totedge, 0, totloop, totpoly);
-
- if (totvert != 0) {
- memcpy(mesh->mvert, allvert, totvert * sizeof(MVert));
- }
- if (totedge != 0) {
- memcpy(mesh->medge, alledge, totedge * sizeof(MEdge));
- }
- if (totloop != 0) {
- memcpy(mesh->mloop, allloop, totloop * sizeof(MLoop));
- }
- if (totpoly != 0) {
- memcpy(mesh->mpoly, allpoly, totpoly * sizeof(MPoly));
- }
-
- if (alluv) {
- const char *uvname = "UVMap";
- CustomData_add_layer_named(&mesh->ldata, CD_MLOOPUV, CD_ASSIGN, alluv, totloop, uvname);
- }
+ Mesh *mesh = mesh_nurbs_displist_to_mesh(cu, dispbase);
mesh_copy_texture_space_from_curve_type(cu, mesh);
-
- /* Copy curve materials. */
mesh->mat = (Material **)MEM_dupallocN(cu->mat);
mesh->totcol = cu->totcol;
- MEM_freeN(allvert);
- MEM_freeN(alledge);
- MEM_freeN(allloop);
- MEM_freeN(allpoly);
-
return mesh;
}
@@ -805,7 +682,8 @@ void BKE_mesh_from_pointcloud(const PointCloud *pointcloud, Mesh *me)
&pointcloud->pdata, &me->vdata, CD_MASK_PROP_ALL, CD_DUPLICATE, pointcloud->totpoint);
/* Convert the Position attribute to a mesh vertex. */
- me->mvert = (MVert *)CustomData_add_layer(&me->vdata, CD_MVERT, CD_CALLOC, nullptr, me->totvert);
+ me->mvert = (MVert *)CustomData_add_layer(
+ &me->vdata, CD_MVERT, CD_SET_DEFAULT, nullptr, me->totvert);
CustomData_update_typemap(&me->vdata);
const int layer_idx = CustomData_get_named_layer_index(
@@ -1003,32 +881,21 @@ static Mesh *mesh_new_from_curve_type_object(const Object *object)
static Mesh *mesh_new_from_mball_object(Object *object)
{
- MetaBall *mball = (MetaBall *)object->data;
-
/* NOTE: We can only create mesh for a polygonized meta ball. This figures out all original meta
* balls and all evaluated child meta balls (since polygonization is only stored in the mother
* ball).
*
* Create empty mesh so script-authors don't run into None objects. */
- if (!DEG_is_evaluated_object(object) || object->runtime.curve_cache == nullptr ||
- BLI_listbase_is_empty(&object->runtime.curve_cache->disp)) {
+ if (!DEG_is_evaluated_object(object)) {
return (Mesh *)BKE_id_new_nomain(ID_ME, ((ID *)object->data)->name + 2);
}
- Mesh *mesh_result = (Mesh *)BKE_id_new_nomain(ID_ME, ((ID *)object->data)->name + 2);
- BKE_mesh_from_metaball(&object->runtime.curve_cache->disp, mesh_result);
- BKE_mesh_texspace_copy_from_object(mesh_result, object);
-
- /* Copy materials. */
- mesh_result->totcol = mball->totcol;
- mesh_result->mat = (Material **)MEM_dupallocN(mball->mat);
- if (mball->mat != nullptr) {
- for (int i = mball->totcol; i-- > 0;) {
- mesh_result->mat[i] = BKE_object_material_get(object, i + 1);
- }
+ const Mesh *mesh_eval = BKE_object_get_evaluated_mesh(object);
+ if (mesh_eval == nullptr) {
+ return (Mesh *)BKE_id_new_nomain(ID_ME, ((ID *)object->data)->name + 2);
}
- return mesh_result;
+ return BKE_mesh_copy_for_eval(mesh_eval, false);
}
static Mesh *mesh_new_from_mesh(Object *object, Mesh *mesh)
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-17 05:44:19 +0300