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Diffstat (limited to 'source/blender/editors/mesh/meshtools.cc')
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diff --git a/source/blender/editors/mesh/meshtools.cc b/source/blender/editors/mesh/meshtools.cc
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+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2004 Blender Foundation. All rights reserved. */
+
+/** \file
+ * \ingroup edmesh
+ *
+ * meshtools.c: no editmode (violated already :), mirror & join),
+ * tools operating on meshes
+ */
+
+#include "MEM_guardedalloc.h"
+
+#include "DNA_key_types.h"
+#include "DNA_material_types.h"
+#include "DNA_mesh_types.h"
+#include "DNA_meshdata_types.h"
+#include "DNA_modifier_types.h"
+#include "DNA_object_types.h"
+#include "DNA_scene_types.h"
+#include "DNA_screen_types.h"
+#include "DNA_view3d_types.h"
+#include "DNA_workspace_types.h"
+
+#include "BKE_context.h"
+#include "BKE_customdata.h"
+#include "BKE_deform.h"
+#include "BKE_editmesh.h"
+#include "BKE_key.h"
+#include "BKE_layer.h"
+#include "BKE_lib_id.h"
+#include "BKE_main.h"
+#include "BKE_material.h"
+#include "BKE_mesh.h"
+#include "BKE_mesh_iterators.h"
+#include "BKE_mesh_runtime.h"
+#include "BKE_multires.h"
+#include "BKE_object.h"
+#include "BKE_object_deform.h"
+#include "BKE_object_facemap.h"
+#include "BKE_report.h"
+
+#include "DEG_depsgraph.h"
+#include "DEG_depsgraph_build.h"
+#include "DEG_depsgraph_query.h"
+
+#include "DRW_select_buffer.h"
+
+#include "ED_mesh.h"
+#include "ED_object.h"
+#include "ED_view3d.h"
+
+#include "WM_api.h"
+#include "WM_types.h"
+
+/* * ********************** no editmode!!! *********** */
+
+/*********************** JOIN ***************************/
+
+/* join selected meshes into the active mesh, context sensitive
+ * return 0 if no join is made (error) and 1 if the join is done */
+
+static void join_mesh_single(Depsgraph *depsgraph,
+ Main *bmain,
+ Scene *scene,
+ Object *ob_dst,
+ Object *ob_src,
+ const float imat[4][4],
+ MVert **mvert_pp,
+ MEdge **medge_pp,
+ MLoop **mloop_pp,
+ MPoly **mpoly_pp,
+ CustomData *vdata,
+ CustomData *edata,
+ CustomData *ldata,
+ CustomData *pdata,
+ int totvert,
+ int totedge,
+ int totloop,
+ int totpoly,
+ Key *key,
+ Key *nkey,
+ Material **matar,
+ int *matmap,
+ int totcol,
+ int *vertofs,
+ int *edgeofs,
+ int *loopofs,
+ int *polyofs)
+{
+ int a, b;
+
+ Mesh *me = static_cast<Mesh *>(ob_src->data);
+ MVert *mvert = *mvert_pp;
+ MEdge *medge = *medge_pp;
+ MLoop *mloop = *mloop_pp;
+ MPoly *mpoly = *mpoly_pp;
+
+ if (me->totvert) {
+ /* merge customdata flag */
+ ((Mesh *)ob_dst->data)->cd_flag |= me->cd_flag;
+
+ /* standard data */
+ CustomData_merge(&me->vdata, vdata, CD_MASK_MESH.vmask, CD_DEFAULT, totvert);
+ CustomData_copy_data_named(&me->vdata, vdata, 0, *vertofs, me->totvert);
+
+ /* vertex groups */
+ MDeformVert *dvert = (MDeformVert *)CustomData_get(vdata, *vertofs, CD_MDEFORMVERT);
+ const MDeformVert *dvert_src = (const MDeformVert *)CustomData_get(
+ &me->vdata, 0, CD_MDEFORMVERT);
+
+ /* Remap to correct new vgroup indices, if needed. */
+ if (dvert_src) {
+ BLI_assert(dvert != nullptr);
+
+ /* Build src to merged mapping of vgroup indices. */
+ int *vgroup_index_map;
+ int vgroup_index_map_len;
+ vgroup_index_map = BKE_object_defgroup_index_map_create(
+ ob_src, ob_dst, &vgroup_index_map_len);
+ BKE_object_defgroup_index_map_apply(
+ dvert, me->totvert, vgroup_index_map, vgroup_index_map_len);
+ if (vgroup_index_map != nullptr) {
+ MEM_freeN(vgroup_index_map);
+ }
+ }
+
+ /* if this is the object we're merging into, no need to do anything */
+ if (ob_src != ob_dst) {
+ float cmat[4][4];
+
+ /* Watch this: switch matrix multiplication order really goes wrong. */
+ mul_m4_m4m4(cmat, imat, ob_src->obmat);
+
+ /* transform vertex coordinates into new space */
+ for (a = 0; a < me->totvert; a++, mvert++) {
+ mul_m4_v3(cmat, mvert->co);
+ }
+
+ /* For each shape-key in destination mesh:
+ * - if there's a matching one, copy it across
+ * (will need to transform vertices into new space...).
+ * - otherwise, just copy own coordinates of mesh
+ * (no need to transform vertex coordinates into new space).
+ */
+ if (key) {
+ /* if this mesh has any shape-keys, check first, otherwise just copy coordinates */
+ LISTBASE_FOREACH (KeyBlock *, kb, &key->block) {
+ /* get pointer to where to write data for this mesh in shape-key's data array */
+ float(*cos)[3] = ((float(*)[3])kb->data) + *vertofs;
+
+ /* Check if this mesh has such a shape-key. */
+ KeyBlock *okb = me->key ? BKE_keyblock_find_name(me->key, kb->name) : nullptr;
+ if (okb) {
+ /* copy this mesh's shape-key to the destination shape-key
+ * (need to transform first) */
+ float(*ocos)[3] = static_cast<float(*)[3]>(okb->data);
+ for (a = 0; a < me->totvert; a++, cos++, ocos++) {
+ copy_v3_v3(*cos, *ocos);
+ mul_m4_v3(cmat, *cos);
+ }
+ }
+ else {
+ /* Copy this mesh's vertex coordinates to the destination shape-key. */
+ for (a = 0, mvert = *mvert_pp; a < me->totvert; a++, cos++, mvert++) {
+ copy_v3_v3(*cos, mvert->co);
+ }
+ }
+ }
+ }
+ }
+ else {
+ /* for each shape-key in destination mesh:
+ * - if it was an 'original', copy the appropriate data from nkey
+ * - otherwise, copy across plain coordinates (no need to transform coordinates)
+ */
+ if (key) {
+ LISTBASE_FOREACH (KeyBlock *, kb, &key->block) {
+ /* get pointer to where to write data for this mesh in shape-key's data array */
+ float(*cos)[3] = ((float(*)[3])kb->data) + *vertofs;
+
+ /* Check if this was one of the original shape-keys. */
+ KeyBlock *okb = nkey ? BKE_keyblock_find_name(nkey, kb->name) : nullptr;
+ if (okb) {
+ /* copy this mesh's shape-key to the destination shape-key */
+ float(*ocos)[3] = static_cast<float(*)[3]>(okb->data);
+ for (a = 0; a < me->totvert; a++, cos++, ocos++) {
+ copy_v3_v3(*cos, *ocos);
+ }
+ }
+ else {
+ /* Copy base-coordinates to the destination shape-key. */
+ for (a = 0, mvert = *mvert_pp; a < me->totvert; a++, cos++, mvert++) {
+ copy_v3_v3(*cos, mvert->co);
+ }
+ }
+ }
+ }
+ }
+ }
+
+ if (me->totedge) {
+ CustomData_merge(&me->edata, edata, CD_MASK_MESH.emask, CD_DEFAULT, totedge);
+ CustomData_copy_data_named(&me->edata, edata, 0, *edgeofs, me->totedge);
+
+ for (a = 0; a < me->totedge; a++, medge++) {
+ medge->v1 += *vertofs;
+ medge->v2 += *vertofs;
+ }
+ }
+
+ if (me->totloop) {
+ if (ob_src != ob_dst) {
+ MultiresModifierData *mmd;
+
+ multiresModifier_prepare_join(depsgraph, scene, ob_src, ob_dst);
+
+ if ((mmd = get_multires_modifier(scene, ob_src, true))) {
+ ED_object_iter_other(
+ bmain, ob_src, true, ED_object_multires_update_totlevels_cb, &mmd->totlvl);
+ }
+ }
+
+ CustomData_merge(&me->ldata, ldata, CD_MASK_MESH.lmask, CD_DEFAULT, totloop);
+ CustomData_copy_data_named(&me->ldata, ldata, 0, *loopofs, me->totloop);
+
+ for (a = 0; a < me->totloop; a++, mloop++) {
+ mloop->v += *vertofs;
+ mloop->e += *edgeofs;
+ }
+ }
+
+ if (me->totpoly) {
+ if (matmap) {
+ /* make mapping for materials */
+ for (a = 1; a <= ob_src->totcol; a++) {
+ Material *ma = BKE_object_material_get(ob_src, a);
+
+ for (b = 0; b < totcol; b++) {
+ if (ma == matar[b]) {
+ matmap[a - 1] = b;
+ break;
+ }
+ }
+ }
+ }
+
+ CustomData_merge(&me->pdata, pdata, CD_MASK_MESH.pmask, CD_DEFAULT, totpoly);
+ CustomData_copy_data_named(&me->pdata, pdata, 0, *polyofs, me->totpoly);
+
+ for (a = 0; a < me->totpoly; a++, mpoly++) {
+ mpoly->loopstart += *loopofs;
+ mpoly->mat_nr = matmap ? matmap[mpoly->mat_nr] : 0;
+ }
+
+ /* Face maps. */
+ int *fmap = (int *)CustomData_get(pdata, *polyofs, CD_FACEMAP);
+ const int *fmap_src = (const int *)CustomData_get(&me->pdata, 0, CD_FACEMAP);
+
+ /* Remap to correct new face-map indices, if needed. */
+ if (fmap_src) {
+ BLI_assert(fmap != nullptr);
+ int *fmap_index_map;
+ int fmap_index_map_len;
+ fmap_index_map = BKE_object_facemap_index_map_create(ob_src, ob_dst, &fmap_index_map_len);
+ BKE_object_facemap_index_map_apply(fmap, me->totpoly, fmap_index_map, fmap_index_map_len);
+ if (fmap_index_map != nullptr) {
+ MEM_freeN(fmap_index_map);
+ }
+ }
+ }
+
+ /* these are used for relinking (cannot be set earlier, or else reattaching goes wrong) */
+ *vertofs += me->totvert;
+ *mvert_pp += me->totvert;
+ *edgeofs += me->totedge;
+ *medge_pp += me->totedge;
+ *loopofs += me->totloop;
+ *mloop_pp += me->totloop;
+ *polyofs += me->totpoly;
+ *mpoly_pp += me->totpoly;
+}
+
+/* Face Sets IDs are a sparse sequence, so this function offsets all the IDs by face_set_offset and
+ * updates face_set_offset with the maximum ID value. This way, when used in multiple meshes, all
+ * of them will have different IDs for their Face Sets. */
+static void mesh_join_offset_face_sets_ID(const Mesh *mesh, int *face_set_offset)
+{
+ if (!mesh->totpoly) {
+ return;
+ }
+
+ int *face_sets = (int *)CustomData_get_layer(&mesh->pdata, CD_SCULPT_FACE_SETS);
+ if (!face_sets) {
+ return;
+ }
+
+ int max_face_set = 0;
+ for (int f = 0; f < mesh->totpoly; f++) {
+ /* As face sets encode the visibility in the integer sign, the offset needs to be added or
+ * subtracted depending on the initial sign of the integer to get the new ID. */
+ if (abs(face_sets[f]) <= *face_set_offset) {
+ if (face_sets[f] > 0) {
+ face_sets[f] += *face_set_offset;
+ }
+ else {
+ face_sets[f] -= *face_set_offset;
+ }
+ }
+ max_face_set = max_ii(max_face_set, abs(face_sets[f]));
+ }
+ *face_set_offset = max_face_set;
+}
+
+int ED_mesh_join_objects_exec(bContext *C, wmOperator *op)
+{
+ Main *bmain = CTX_data_main(C);
+ Scene *scene = CTX_data_scene(C);
+ Object *ob = CTX_data_active_object(C);
+ Material **matar = nullptr, *ma;
+ Mesh *me;
+ MVert *mvert = nullptr;
+ MEdge *medge = nullptr;
+ MPoly *mpoly = nullptr;
+ MLoop *mloop = nullptr;
+ Key *key, *nkey = nullptr;
+ float imat[4][4];
+ int a, b, totcol, totmat = 0, totedge = 0, totvert = 0;
+ int totloop = 0, totpoly = 0, vertofs, *matmap = nullptr;
+ int i, haskey = 0, edgeofs, loopofs, polyofs;
+ bool ok = false, join_parent = false;
+ CustomData vdata, edata, fdata, ldata, pdata;
+
+ if (ob->mode & OB_MODE_EDIT) {
+ BKE_report(op->reports, RPT_WARNING, "Cannot join while in edit mode");
+ return OPERATOR_CANCELLED;
+ }
+
+ /* ob is the object we are adding geometry to */
+ if (!ob || ob->type != OB_MESH) {
+ BKE_report(op->reports, RPT_WARNING, "Active object is not a mesh");
+ return OPERATOR_CANCELLED;
+ }
+
+ Depsgraph *depsgraph = CTX_data_ensure_evaluated_depsgraph(C);
+
+ /* count & check */
+ CTX_DATA_BEGIN (C, Object *, ob_iter, selected_editable_objects) {
+ if (ob_iter->type == OB_MESH) {
+ me = static_cast<Mesh *>(ob_iter->data);
+
+ totvert += me->totvert;
+ totedge += me->totedge;
+ totloop += me->totloop;
+ totpoly += me->totpoly;
+ totmat += ob_iter->totcol;
+
+ if (ob_iter == ob) {
+ ok = true;
+ }
+
+ if ((ob->parent != nullptr) && (ob_iter == ob->parent)) {
+ join_parent = true;
+ }
+
+ /* Check for shape-keys. */
+ if (me->key) {
+ haskey++;
+ }
+ }
+ }
+ CTX_DATA_END;
+
+ /* Apply parent transform if the active object's parent was joined to it.
+ * NOTE: This doesn't apply recursive parenting. */
+ if (join_parent) {
+ ob->parent = nullptr;
+ BKE_object_apply_mat4_ex(ob, ob->obmat, ob->parent, ob->parentinv, false);
+ }
+
+ /* that way the active object is always selected */
+ if (ok == false) {
+ BKE_report(op->reports, RPT_WARNING, "Active object is not a selected mesh");
+ return OPERATOR_CANCELLED;
+ }
+
+ /* Only join meshes if there are verts to join,
+ * there aren't too many, and we only had one mesh selected. */
+ me = (Mesh *)ob->data;
+ key = me->key;
+
+ if (ELEM(totvert, 0, me->totvert)) {
+ BKE_report(op->reports, RPT_WARNING, "No mesh data to join");
+ return OPERATOR_CANCELLED;
+ }
+
+ if (totvert > MESH_MAX_VERTS) {
+ BKE_reportf(op->reports,
+ RPT_WARNING,
+ "Joining results in %d vertices, limit is %ld",
+ totvert,
+ MESH_MAX_VERTS);
+ return OPERATOR_CANCELLED;
+ }
+
+ /* remove tessface to ensure we don't hold references to invalid faces */
+ BKE_mesh_tessface_clear(me);
+
+ /* Clear any run-time data.
+ * Even though this mesh wont typically have run-time data, the Python API can for e.g.
+ * create loop-triangle cache here, which is confusing when left in the mesh, see: T90798. */
+ BKE_mesh_runtime_clear_geometry(me);
+ BKE_mesh_clear_derived_normals(me);
+
+ /* new material indices and material array */
+ if (totmat) {
+ matar = static_cast<Material **>(MEM_callocN(sizeof(*matar) * totmat, __func__));
+ matmap = static_cast<int *>(MEM_callocN(sizeof(*matmap) * totmat, __func__));
+ }
+ totcol = ob->totcol;
+
+ /* obact materials in new main array, is nicer start! */
+ for (a = 0; a < ob->totcol; a++) {
+ matar[a] = BKE_object_material_get(ob, a + 1);
+ id_us_plus((ID *)matar[a]);
+ /* increase id->us : will be lowered later */
+ }
+
+ /* - If destination mesh had shape-keys, move them somewhere safe, and set up placeholders
+ * with arrays that are large enough to hold shape-key data for all meshes.
+ * - If destination mesh didn't have shape-keys, but we encountered some in the meshes we're
+ * joining, set up a new key-block and assign to the mesh.
+ */
+ if (key) {
+ /* make a duplicate copy that will only be used here... (must remember to free it!) */
+ nkey = (Key *)BKE_id_copy(bmain, &key->id);
+
+ /* for all keys in old block, clear data-arrays */
+ LISTBASE_FOREACH (KeyBlock *, kb, &key->block) {
+ if (kb->data) {
+ MEM_freeN(kb->data);
+ }
+ kb->data = MEM_callocN(sizeof(float[3]) * totvert, "join_shapekey");
+ kb->totelem = totvert;
+ }
+ }
+ else if (haskey) {
+ /* add a new key-block and add to the mesh */
+ key = me->key = BKE_key_add(bmain, (ID *)me);
+ key->type = KEY_RELATIVE;
+ }
+
+ /* Update face_set_id_offset with the face set data in the active object first. This way the Face
+ * Sets IDs in the active object are not the ones that are modified. */
+ Mesh *mesh_active = BKE_mesh_from_object(ob);
+ int face_set_id_offset = 0;
+ mesh_join_offset_face_sets_ID(mesh_active, &face_set_id_offset);
+
+ /* Copy materials, vertex-groups, face sets & face-maps across objects. */
+ CTX_DATA_BEGIN (C, Object *, ob_iter, selected_editable_objects) {
+ /* only act if a mesh, and not the one we're joining to */
+ if ((ob != ob_iter) && (ob_iter->type == OB_MESH)) {
+ me = static_cast<Mesh *>(ob_iter->data);
+
+ /* Join this object's vertex groups to the base one's */
+ LISTBASE_FOREACH (bDeformGroup *, dg, &me->vertex_group_names) {
+ /* See if this group exists in the object (if it doesn't, add it to the end) */
+ if (!BKE_object_defgroup_find_name(ob, dg->name)) {
+ bDeformGroup *odg = static_cast<bDeformGroup *>(
+ MEM_mallocN(sizeof(bDeformGroup), __func__));
+ memcpy(odg, dg, sizeof(bDeformGroup));
+ BLI_addtail(&mesh_active->vertex_group_names, odg);
+ }
+ }
+ if (!BLI_listbase_is_empty(&mesh_active->vertex_group_names) &&
+ me->vertex_group_active_index == 0) {
+ me->vertex_group_active_index = 1;
+ }
+
+ /* Join this object's face maps to the base one's. */
+ LISTBASE_FOREACH (bFaceMap *, fmap, &ob_iter->fmaps) {
+ /* See if this group exists in the object (if it doesn't, add it to the end) */
+ if (BKE_object_facemap_find_name(ob, fmap->name) == nullptr) {
+ bFaceMap *fmap_new = static_cast<bFaceMap *>(MEM_mallocN(sizeof(bFaceMap), __func__));
+ memcpy(fmap_new, fmap, sizeof(bFaceMap));
+ BLI_addtail(&ob->fmaps, fmap_new);
+ }
+ }
+ if (ob->fmaps.first && ob->actfmap == 0) {
+ ob->actfmap = 1;
+ }
+
+ mesh_join_offset_face_sets_ID(me, &face_set_id_offset);
+
+ if (me->totvert) {
+ /* Add this object's materials to the base one's if they don't exist already
+ * (but only if limits not exceeded yet) */
+ if (totcol < MAXMAT) {
+ for (a = 1; a <= ob_iter->totcol; a++) {
+ ma = BKE_object_material_get(ob_iter, a);
+
+ for (b = 0; b < totcol; b++) {
+ if (ma == matar[b]) {
+ break;
+ }
+ }
+ if (b == totcol) {
+ matar[b] = ma;
+ if (ma) {
+ id_us_plus(&ma->id);
+ }
+ totcol++;
+ }
+ if (totcol >= MAXMAT) {
+ break;
+ }
+ }
+ }
+
+ /* If this mesh has shape-keys,
+ * check if destination mesh already has matching entries too. */
+ if (me->key && key) {
+ /* for remapping KeyBlock.relative */
+ int *index_map = static_cast<int *>(
+ MEM_mallocN(sizeof(int) * me->key->totkey, __func__));
+ KeyBlock **kb_map = static_cast<KeyBlock **>(
+ MEM_mallocN(sizeof(KeyBlock *) * me->key->totkey, __func__));
+
+ LISTBASE_FOREACH_INDEX (KeyBlock *, kb, &me->key->block, i) {
+ BLI_assert(i < me->key->totkey);
+
+ KeyBlock *kbn = BKE_keyblock_find_name(key, kb->name);
+ /* if key doesn't exist in destination mesh, add it */
+ if (kbn) {
+ index_map[i] = BLI_findindex(&key->block, kbn);
+ }
+ else {
+ index_map[i] = key->totkey;
+
+ kbn = BKE_keyblock_add(key, kb->name);
+
+ BKE_keyblock_copy_settings(kbn, kb);
+
+ /* adjust settings to fit (allocate a new data-array) */
+ kbn->data = MEM_callocN(sizeof(float[3]) * totvert, "joined_shapekey");
+ kbn->totelem = totvert;
+ }
+
+ kb_map[i] = kbn;
+ }
+
+ /* remap relative index values */
+ LISTBASE_FOREACH_INDEX (KeyBlock *, kb, &me->key->block, i) {
+ /* sanity check, should always be true */
+ if (LIKELY(kb->relative < me->key->totkey)) {
+ kb_map[i]->relative = index_map[kb->relative];
+ }
+ }
+
+ MEM_freeN(index_map);
+ MEM_freeN(kb_map);
+ }
+ }
+ }
+ }
+ CTX_DATA_END;
+
+ /* setup new data for destination mesh */
+ CustomData_reset(&vdata);
+ CustomData_reset(&edata);
+ CustomData_reset(&fdata);
+ CustomData_reset(&ldata);
+ CustomData_reset(&pdata);
+
+ mvert = (MVert *)CustomData_add_layer(&vdata, CD_MVERT, CD_CALLOC, nullptr, totvert);
+ medge = (MEdge *)CustomData_add_layer(&edata, CD_MEDGE, CD_CALLOC, nullptr, totedge);
+ mloop = (MLoop *)CustomData_add_layer(&ldata, CD_MLOOP, CD_CALLOC, nullptr, totloop);
+ mpoly = (MPoly *)CustomData_add_layer(&pdata, CD_MPOLY, CD_CALLOC, nullptr, totpoly);
+
+ vertofs = 0;
+ edgeofs = 0;
+ loopofs = 0;
+ polyofs = 0;
+
+ /* Inverse transform for all selected meshes in this object,
+ * See #object_join_exec for detailed comment on why the safe version is used. */
+ invert_m4_m4_safe_ortho(imat, ob->obmat);
+
+ /* Add back active mesh first.
+ * This allows to keep things similar as they were, as much as possible
+ * (i.e. data from active mesh will remain first ones in new result of the merge,
+ * in same order for CD layers, etc). See also T50084.
+ */
+ join_mesh_single(depsgraph,
+ bmain,
+ scene,
+ ob,
+ ob,
+ imat,
+ &mvert,
+ &medge,
+ &mloop,
+ &mpoly,
+ &vdata,
+ &edata,
+ &ldata,
+ &pdata,
+ totvert,
+ totedge,
+ totloop,
+ totpoly,
+ key,
+ nkey,
+ matar,
+ matmap,
+ totcol,
+ &vertofs,
+ &edgeofs,
+ &loopofs,
+ &polyofs);
+
+ CTX_DATA_BEGIN (C, Object *, ob_iter, selected_editable_objects) {
+ if (ob_iter == ob) {
+ continue;
+ }
+ /* only join if this is a mesh */
+ if (ob_iter->type == OB_MESH) {
+ join_mesh_single(depsgraph,
+ bmain,
+ scene,
+ ob,
+ ob_iter,
+ imat,
+ &mvert,
+ &medge,
+ &mloop,
+ &mpoly,
+ &vdata,
+ &edata,
+ &ldata,
+ &pdata,
+ totvert,
+ totedge,
+ totloop,
+ totpoly,
+ key,
+ nkey,
+ matar,
+ matmap,
+ totcol,
+ &vertofs,
+ &edgeofs,
+ &loopofs,
+ &polyofs);
+
+ /* free base, now that data is merged */
+ if (ob_iter != ob) {
+ ED_object_base_free_and_unlink(bmain, scene, ob_iter);
+ }
+ }
+ }
+ CTX_DATA_END;
+
+ /* return to mesh we're merging to */
+ me = static_cast<Mesh *>(ob->data);
+
+ CustomData_free(&me->vdata, me->totvert);
+ CustomData_free(&me->edata, me->totedge);
+ CustomData_free(&me->ldata, me->totloop);
+ CustomData_free(&me->pdata, me->totpoly);
+
+ me->totvert = totvert;
+ me->totedge = totedge;
+ me->totloop = totloop;
+ me->totpoly = totpoly;
+
+ me->vdata = vdata;
+ me->edata = edata;
+ me->ldata = ldata;
+ me->pdata = pdata;
+
+ /* tessface data removed above, no need to update */
+ BKE_mesh_update_customdata_pointers(me, false);
+
+ /* Tag normals dirty because vertex positions could be changed from the original. */
+ BKE_mesh_normals_tag_dirty(me);
+
+ /* old material array */
+ for (a = 1; a <= ob->totcol; a++) {
+ ma = ob->mat[a - 1];
+ if (ma) {
+ id_us_min(&ma->id);
+ }
+ }
+ for (a = 1; a <= me->totcol; a++) {
+ ma = me->mat[a - 1];
+ if (ma) {
+ id_us_min(&ma->id);
+ }
+ }
+ MEM_SAFE_FREE(ob->mat);
+ MEM_SAFE_FREE(ob->matbits);
+ MEM_SAFE_FREE(me->mat);
+
+ if (totcol) {
+ me->mat = matar;
+ ob->mat = static_cast<Material **>(MEM_callocN(sizeof(*ob->mat) * totcol, __func__));
+ ob->matbits = static_cast<char *>(MEM_callocN(sizeof(*ob->matbits) * totcol, __func__));
+ MEM_freeN(matmap);
+ }
+
+ ob->totcol = me->totcol = totcol;
+
+ /* other mesh users */
+ BKE_objects_materials_test_all(bmain, (ID *)me);
+
+ /* Free temporary copy of destination shape-keys (if applicable). */
+ if (nkey) {
+ /* We can assume nobody is using that ID currently. */
+ BKE_id_free_ex(bmain, nkey, LIB_ID_FREE_NO_UI_USER, false);
+ }
+
+ /* ensure newly inserted keys are time sorted */
+ if (key && (key->type != KEY_RELATIVE)) {
+ BKE_key_sort(key);
+ }
+
+ /* Due to dependency cycle some other object might access old derived data. */
+ BKE_object_free_derived_caches(ob);
+
+ DEG_relations_tag_update(bmain); /* removed objects, need to rebuild dag */
+
+ DEG_id_tag_update(&ob->id, ID_RECALC_TRANSFORM | ID_RECALC_GEOMETRY);
+
+ DEG_id_tag_update(&scene->id, ID_RECALC_SELECT);
+ WM_event_add_notifier(C, NC_SCENE | ND_OB_ACTIVE, scene);
+ WM_event_add_notifier(C, NC_SCENE | ND_LAYER_CONTENT, scene);
+
+ return OPERATOR_FINISHED;
+}
+
+/* -------------------------------------------------------------------- */
+/** \name Join as Shapes
+ *
+ * Append selected meshes vertex locations as shapes of the active mesh.
+ * \{ */
+
+int ED_mesh_shapes_join_objects_exec(bContext *C, wmOperator *op)
+{
+ Main *bmain = CTX_data_main(C);
+ Scene *scene = CTX_data_scene(C);
+ Object *ob_active = CTX_data_active_object(C);
+ Depsgraph *depsgraph = CTX_data_ensure_evaluated_depsgraph(C);
+ Mesh *me = (Mesh *)ob_active->data;
+ Mesh *selme = nullptr;
+ Mesh *me_deformed = nullptr;
+ Key *key = me->key;
+ KeyBlock *kb;
+ bool ok = false, nonequal_verts = false;
+
+ CTX_DATA_BEGIN (C, Object *, ob_iter, selected_editable_objects) {
+ if (ob_iter == ob_active) {
+ continue;
+ }
+
+ if (ob_iter->type == OB_MESH) {
+ selme = (Mesh *)ob_iter->data;
+
+ if (selme->totvert == me->totvert) {
+ ok = true;
+ }
+ else {
+ nonequal_verts = true;
+ }
+ }
+ }
+ CTX_DATA_END;
+
+ if (!ok) {
+ if (nonequal_verts) {
+ BKE_report(op->reports, RPT_WARNING, "Selected meshes must have equal numbers of vertices");
+ }
+ else {
+ BKE_report(op->reports,
+ RPT_WARNING,
+ "No additional selected meshes with equal vertex count to join");
+ }
+ return OPERATOR_CANCELLED;
+ }
+
+ if (key == nullptr) {
+ key = me->key = BKE_key_add(bmain, (ID *)me);
+ key->type = KEY_RELATIVE;
+
+ /* first key added, so it was the basis. initialize it with the existing mesh */
+ kb = BKE_keyblock_add(key, nullptr);
+ BKE_keyblock_convert_from_mesh(me, key, kb);
+ }
+
+ /* now ready to add new keys from selected meshes */
+ CTX_DATA_BEGIN (C, Object *, ob_iter, selected_editable_objects) {
+ if (ob_iter == ob_active) {
+ continue;
+ }
+
+ if (ob_iter->type == OB_MESH) {
+ selme = (Mesh *)ob_iter->data;
+
+ if (selme->totvert == me->totvert) {
+ Scene *scene_eval = DEG_get_evaluated_scene(depsgraph);
+ Object *ob_eval = DEG_get_evaluated_object(depsgraph, ob_iter);
+
+ me_deformed = mesh_get_eval_deform(depsgraph, scene_eval, ob_eval, &CD_MASK_BAREMESH);
+
+ if (!me_deformed) {
+ continue;
+ }
+
+ kb = BKE_keyblock_add(key, ob_iter->id.name + 2);
+
+ BKE_mesh_runtime_eval_to_meshkey(me_deformed, me, kb);
+ }
+ }
+ }
+ CTX_DATA_END;
+
+ DEG_id_tag_update(&scene->id, ID_RECALC_SELECT);
+ WM_event_add_notifier(C, NC_SCENE | ND_OB_ACTIVE, scene);
+
+ return OPERATOR_FINISHED;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Mesh Topology Mirror API
+ * \{ */
+
+static MirrTopoStore_t mesh_topo_store = {nullptr, -1, -1, false};
+
+BLI_INLINE void mesh_mirror_topo_table_get_meshes(Object *ob,
+ Mesh *me_eval,
+ Mesh **r_me_mirror,
+ BMEditMesh **r_em_mirror)
+{
+ Mesh *me_mirror = nullptr;
+ BMEditMesh *em_mirror = nullptr;
+
+ Mesh *me = static_cast<Mesh *>(ob->data);
+ if (me_eval != nullptr) {
+ me_mirror = me_eval;
+ }
+ else if (me->edit_mesh != nullptr) {
+ em_mirror = me->edit_mesh;
+ }
+ else {
+ me_mirror = me;
+ }
+
+ *r_me_mirror = me_mirror;
+ *r_em_mirror = em_mirror;
+}
+
+void ED_mesh_mirror_topo_table_begin(Object *ob, Mesh *me_eval)
+{
+ Mesh *me_mirror;
+ BMEditMesh *em_mirror;
+ mesh_mirror_topo_table_get_meshes(ob, me_eval, &me_mirror, &em_mirror);
+
+ ED_mesh_mirrtopo_init(em_mirror, me_mirror, &mesh_topo_store, false);
+}
+
+void ED_mesh_mirror_topo_table_end(Object *UNUSED(ob))
+{
+ /* TODO: store this in object/object-data (keep unused argument for now). */
+ ED_mesh_mirrtopo_free(&mesh_topo_store);
+}
+
+/* Returns true on success. */
+static bool ed_mesh_mirror_topo_table_update(Object *ob, Mesh *me_eval)
+{
+ Mesh *me_mirror;
+ BMEditMesh *em_mirror;
+ mesh_mirror_topo_table_get_meshes(ob, me_eval, &me_mirror, &em_mirror);
+
+ if (ED_mesh_mirrtopo_recalc_check(em_mirror, me_mirror, &mesh_topo_store)) {
+ ED_mesh_mirror_topo_table_begin(ob, me_eval);
+ }
+ return true;
+}
+
+/** \} */
+
+static int mesh_get_x_mirror_vert_spatial(Object *ob, Mesh *me_eval, int index)
+{
+ Mesh *me = static_cast<Mesh *>(ob->data);
+ MVert *mvert = me_eval ? me_eval->mvert : me->mvert;
+ float vec[3];
+
+ mvert = &mvert[index];
+ vec[0] = -mvert->co[0];
+ vec[1] = mvert->co[1];
+ vec[2] = mvert->co[2];
+
+ return ED_mesh_mirror_spatial_table_lookup(ob, nullptr, me_eval, vec);
+}
+
+static int mesh_get_x_mirror_vert_topo(Object *ob, Mesh *mesh, int index)
+{
+ if (!ed_mesh_mirror_topo_table_update(ob, mesh)) {
+ return -1;
+ }
+
+ return mesh_topo_store.index_lookup[index];
+}
+
+int mesh_get_x_mirror_vert(Object *ob, Mesh *me_eval, int index, const bool use_topology)
+{
+ if (use_topology) {
+ return mesh_get_x_mirror_vert_topo(ob, me_eval, index);
+ }
+ return mesh_get_x_mirror_vert_spatial(ob, me_eval, index);
+}
+
+static BMVert *editbmesh_get_x_mirror_vert_spatial(Object *ob, BMEditMesh *em, const float co[3])
+{
+ float vec[3];
+ int i;
+
+ /* ignore nan verts */
+ if ((isfinite(co[0]) == false) || (isfinite(co[1]) == false) || (isfinite(co[2]) == false)) {
+ return nullptr;
+ }
+
+ vec[0] = -co[0];
+ vec[1] = co[1];
+ vec[2] = co[2];
+
+ i = ED_mesh_mirror_spatial_table_lookup(ob, em, nullptr, vec);
+ if (i != -1) {
+ return BM_vert_at_index(em->bm, i);
+ }
+ return nullptr;
+}
+
+static BMVert *editbmesh_get_x_mirror_vert_topo(Object *ob, BMEditMesh *em, BMVert *eve, int index)
+{
+ intptr_t poinval;
+ if (!ed_mesh_mirror_topo_table_update(ob, nullptr)) {
+ return nullptr;
+ }
+
+ if (index == -1) {
+ BMIter iter;
+ BMVert *v;
+
+ index = 0;
+ BM_ITER_MESH (v, &iter, em->bm, BM_VERTS_OF_MESH) {
+ if (v == eve) {
+ break;
+ }
+ index++;
+ }
+
+ if (index == em->bm->totvert) {
+ return nullptr;
+ }
+ }
+
+ poinval = mesh_topo_store.index_lookup[index];
+
+ if (poinval != -1) {
+ return (BMVert *)(poinval);
+ }
+ return nullptr;
+}
+
+BMVert *editbmesh_get_x_mirror_vert(
+ Object *ob, BMEditMesh *em, BMVert *eve, const float co[3], int index, const bool use_topology)
+{
+ if (use_topology) {
+ return editbmesh_get_x_mirror_vert_topo(ob, em, eve, index);
+ }
+ return editbmesh_get_x_mirror_vert_spatial(ob, em, co);
+}
+
+int ED_mesh_mirror_get_vert(Object *ob, int index)
+{
+ Mesh *me = static_cast<Mesh *>(ob->data);
+ BMEditMesh *em = me->edit_mesh;
+ bool use_topology = (me->editflag & ME_EDIT_MIRROR_TOPO) != 0;
+ int index_mirr;
+
+ if (em) {
+ BMVert *eve, *eve_mirr;
+ eve = BM_vert_at_index(em->bm, index);
+ eve_mirr = editbmesh_get_x_mirror_vert(ob, em, eve, eve->co, index, use_topology);
+ index_mirr = eve_mirr ? BM_elem_index_get(eve_mirr) : -1;
+ }
+ else {
+ index_mirr = mesh_get_x_mirror_vert(ob, nullptr, index, use_topology);
+ }
+
+ return index_mirr;
+}
+
+#if 0
+
+static float *editmesh_get_mirror_uv(
+ BMEditMesh *em, int axis, float *uv, float *mirrCent, float *face_cent)
+{
+ float vec[2];
+ float cent_vec[2];
+ float cent[2];
+
+ /* ignore nan verts */
+ if (isnan(uv[0]) || !isfinite(uv[0]) || isnan(uv[1]) || !isfinite(uv[1])) {
+ return nullptr;
+ }
+
+ if (axis) {
+ vec[0] = uv[0];
+ vec[1] = -((uv[1]) - mirrCent[1]) + mirrCent[1];
+
+ cent_vec[0] = face_cent[0];
+ cent_vec[1] = -((face_cent[1]) - mirrCent[1]) + mirrCent[1];
+ }
+ else {
+ vec[0] = -((uv[0]) - mirrCent[0]) + mirrCent[0];
+ vec[1] = uv[1];
+
+ cent_vec[0] = -((face_cent[0]) - mirrCent[0]) + mirrCent[0];
+ cent_vec[1] = face_cent[1];
+ }
+
+ /* TODO: Optimize. */
+ {
+ BMIter iter;
+ BMFace *efa;
+
+ BM_ITER_MESH (efa, &iter, em->bm, BM_FACES_OF_MESH) {
+ BM_face_uv_calc_center_median(efa, cd_loop_uv_offset, cent);
+
+ if ((fabsf(cent[0] - cent_vec[0]) < 0.001f) && (fabsf(cent[1] - cent_vec[1]) < 0.001f)) {
+ BMIter liter;
+ BMLoop *l;
+
+ BM_ITER_ELEM (l, &liter, efa, BM_LOOPS_OF_FACE) {
+ MLoopUV *luv = CustomData_bmesh_get(&em->bm->ldata, l->head.data, CD_MLOOPUV);
+ if ((fabsf(luv->uv[0] - vec[0]) < 0.001f) && (fabsf(luv->uv[1] - vec[1]) < 0.001f)) {
+ return luv->uv;
+ }
+ }
+ }
+ }
+ }
+
+ return nullptr;
+}
+
+#endif
+
+static uint mirror_facehash(const void *ptr)
+{
+ const MFace *mf = static_cast<const MFace *>(ptr);
+ uint v0, v1;
+
+ if (mf->v4) {
+ v0 = MIN4(mf->v1, mf->v2, mf->v3, mf->v4);
+ v1 = MAX4(mf->v1, mf->v2, mf->v3, mf->v4);
+ }
+ else {
+ v0 = MIN3(mf->v1, mf->v2, mf->v3);
+ v1 = MAX3(mf->v1, mf->v2, mf->v3);
+ }
+
+ return ((v0 * 39) ^ (v1 * 31));
+}
+
+static int mirror_facerotation(MFace *a, MFace *b)
+{
+ if (b->v4) {
+ if (a->v1 == b->v1 && a->v2 == b->v2 && a->v3 == b->v3 && a->v4 == b->v4) {
+ return 0;
+ }
+ if (a->v4 == b->v1 && a->v1 == b->v2 && a->v2 == b->v3 && a->v3 == b->v4) {
+ return 1;
+ }
+ if (a->v3 == b->v1 && a->v4 == b->v2 && a->v1 == b->v3 && a->v2 == b->v4) {
+ return 2;
+ }
+ if (a->v2 == b->v1 && a->v3 == b->v2 && a->v4 == b->v3 && a->v1 == b->v4) {
+ return 3;
+ }
+ }
+ else {
+ if (a->v1 == b->v1 && a->v2 == b->v2 && a->v3 == b->v3) {
+ return 0;
+ }
+ if (a->v3 == b->v1 && a->v1 == b->v2 && a->v2 == b->v3) {
+ return 1;
+ }
+ if (a->v2 == b->v1 && a->v3 == b->v2 && a->v1 == b->v3) {
+ return 2;
+ }
+ }
+
+ return -1;
+}
+
+static bool mirror_facecmp(const void *a, const void *b)
+{
+ return (mirror_facerotation((MFace *)a, (MFace *)b) == -1);
+}
+
+int *mesh_get_x_mirror_faces(Object *ob, BMEditMesh *em, Mesh *me_eval)
+{
+ Mesh *me = static_cast<Mesh *>(ob->data);
+ MVert *mv, *mvert;
+ MFace mirrormf, *mf, *hashmf, *mface;
+ GHash *fhash;
+ int *mirrorverts, *mirrorfaces;
+
+ BLI_assert(em == nullptr); /* Does not work otherwise, currently... */
+
+ const bool use_topology = (me->editflag & ME_EDIT_MIRROR_TOPO) != 0;
+ const int totvert = me_eval ? me_eval->totvert : me->totvert;
+ const int totface = me_eval ? me_eval->totface : me->totface;
+ int a;
+
+ mirrorverts = static_cast<int *>(MEM_callocN(sizeof(int) * totvert, "MirrorVerts"));
+ mirrorfaces = static_cast<int *>(MEM_callocN(sizeof(int[2]) * totface, "MirrorFaces"));
+
+ mvert = me_eval ? me_eval->mvert : me->mvert;
+ mface = me_eval ? me_eval->mface : me->mface;
+
+ ED_mesh_mirror_spatial_table_begin(ob, em, me_eval);
+
+ for (a = 0, mv = mvert; a < totvert; a++, mv++) {
+ mirrorverts[a] = mesh_get_x_mirror_vert(ob, me_eval, a, use_topology);
+ }
+
+ ED_mesh_mirror_spatial_table_end(ob);
+
+ fhash = BLI_ghash_new_ex(mirror_facehash, mirror_facecmp, "mirror_facehash gh", me->totface);
+ for (a = 0, mf = mface; a < totface; a++, mf++) {
+ BLI_ghash_insert(fhash, mf, mf);
+ }
+
+ for (a = 0, mf = mface; a < totface; a++, mf++) {
+ mirrormf.v1 = mirrorverts[mf->v3];
+ mirrormf.v2 = mirrorverts[mf->v2];
+ mirrormf.v3 = mirrorverts[mf->v1];
+ mirrormf.v4 = (mf->v4) ? mirrorverts[mf->v4] : 0;
+
+ /* make sure v4 is not 0 if a quad */
+ if (mf->v4 && mirrormf.v4 == 0) {
+ SWAP(uint, mirrormf.v1, mirrormf.v3);
+ SWAP(uint, mirrormf.v2, mirrormf.v4);
+ }
+
+ hashmf = static_cast<MFace *>(BLI_ghash_lookup(fhash, &mirrormf));
+ if (hashmf) {
+ mirrorfaces[a * 2] = hashmf - mface;
+ mirrorfaces[a * 2 + 1] = mirror_facerotation(&mirrormf, hashmf);
+ }
+ else {
+ mirrorfaces[a * 2] = -1;
+ }
+ }
+
+ BLI_ghash_free(fhash, nullptr, nullptr);
+ MEM_freeN(mirrorverts);
+
+ return mirrorfaces;
+}
+
+/* Selection (vertex and face). */
+
+bool ED_mesh_pick_face(bContext *C, Object *ob, const int mval[2], uint dist_px, uint *r_index)
+{
+ ViewContext vc;
+ Mesh *me = static_cast<Mesh *>(ob->data);
+
+ BLI_assert(me && GS(me->id.name) == ID_ME);
+
+ if (!me || me->totpoly == 0) {
+ return false;
+ }
+
+ Depsgraph *depsgraph = CTX_data_ensure_evaluated_depsgraph(C);
+ ED_view3d_viewcontext_init(C, &vc, depsgraph);
+ ED_view3d_select_id_validate(&vc);
+
+ if (dist_px) {
+ /* Sample rect to increase chances of selecting, so that when clicking
+ * on an edge in the back-buffer, we can still select a face. */
+ *r_index = DRW_select_buffer_find_nearest_to_point(
+ vc.depsgraph, vc.region, vc.v3d, mval, 1, me->totpoly + 1, &dist_px);
+ }
+ else {
+ /* sample only on the exact position */
+ *r_index = DRW_select_buffer_sample_point(vc.depsgraph, vc.region, vc.v3d, mval);
+ }
+
+ if ((*r_index) == 0 || (*r_index) > (uint)me->totpoly) {
+ return false;
+ }
+
+ (*r_index)--;
+
+ return true;
+}
+
+static void ed_mesh_pick_face_vert__mpoly_find(
+ /* context */
+ ARegion *region,
+ const float mval[2],
+ /* mesh data (evaluated) */
+ const MPoly *mp,
+ const MVert *mvert,
+ const MLoop *mloop,
+ /* return values */
+ float *r_len_best,
+ int *r_v_idx_best)
+{
+ const MLoop *ml;
+ int j = mp->totloop;
+ for (ml = &mloop[mp->loopstart]; j--; ml++) {
+ float sco[2];
+ const int v_idx = ml->v;
+ const float *co = mvert[v_idx].co;
+ if (ED_view3d_project_float_object(region, co, sco, V3D_PROJ_TEST_NOP) == V3D_PROJ_RET_OK) {
+ const float len_test = len_manhattan_v2v2(mval, sco);
+ if (len_test < *r_len_best) {
+ *r_len_best = len_test;
+ *r_v_idx_best = v_idx;
+ }
+ }
+ }
+}
+bool ED_mesh_pick_face_vert(
+ bContext *C, Object *ob, const int mval[2], uint dist_px, uint *r_index)
+{
+ Depsgraph *depsgraph = CTX_data_ensure_evaluated_depsgraph(C);
+ uint poly_index;
+ Mesh *me = static_cast<Mesh *>(ob->data);
+
+ BLI_assert(me && GS(me->id.name) == ID_ME);
+
+ if (ED_mesh_pick_face(C, ob, mval, dist_px, &poly_index)) {
+ Scene *scene_eval = DEG_get_evaluated_scene(depsgraph);
+ Object *ob_eval = DEG_get_evaluated_object(depsgraph, ob);
+ ARegion *region = CTX_wm_region(C);
+
+ /* derived mesh to find deformed locations */
+ Mesh *me_eval = mesh_get_eval_final(
+ depsgraph, scene_eval, ob_eval, &CD_MASK_BAREMESH_ORIGINDEX);
+
+ int v_idx_best = ORIGINDEX_NONE;
+
+ /* find the vert closest to 'mval' */
+ const float mval_f[2] = {(float)mval[0], (float)mval[1]};
+ float len_best = FLT_MAX;
+
+ MPoly *me_eval_mpoly;
+ MLoop *me_eval_mloop;
+ MVert *me_eval_mvert;
+ uint me_eval_mpoly_len;
+
+ me_eval_mpoly = me_eval->mpoly;
+ me_eval_mloop = me_eval->mloop;
+ me_eval_mvert = me_eval->mvert;
+
+ me_eval_mpoly_len = me_eval->totpoly;
+
+ const int *index_mp_to_orig = (const int *)CustomData_get_layer(&me_eval->pdata, CD_ORIGINDEX);
+
+ /* tag all verts using this face */
+ if (index_mp_to_orig) {
+ uint i;
+
+ for (i = 0; i < me_eval_mpoly_len; i++) {
+ if (index_mp_to_orig[i] == poly_index) {
+ ed_mesh_pick_face_vert__mpoly_find(region,
+ mval_f,
+ &me_eval_mpoly[i],
+ me_eval_mvert,
+ me_eval_mloop,
+ &len_best,
+ &v_idx_best);
+ }
+ }
+ }
+ else {
+ if (poly_index < me_eval_mpoly_len) {
+ ed_mesh_pick_face_vert__mpoly_find(region,
+ mval_f,
+ &me_eval_mpoly[poly_index],
+ me_eval_mvert,
+ me_eval_mloop,
+ &len_best,
+ &v_idx_best);
+ }
+ }
+
+ /* map 'dm -> me' r_index if possible */
+ if (v_idx_best != ORIGINDEX_NONE) {
+ const int *index_mv_to_orig = (const int *)CustomData_get_layer(&me_eval->vdata,
+ CD_ORIGINDEX);
+ if (index_mv_to_orig) {
+ v_idx_best = index_mv_to_orig[v_idx_best];
+ }
+ }
+
+ if ((v_idx_best != ORIGINDEX_NONE) && (v_idx_best < me->totvert)) {
+ *r_index = v_idx_best;
+ return true;
+ }
+ }
+
+ return false;
+}
+
+/**
+ * Vertex selection in object mode,
+ * currently only weight paint uses this.
+ *
+ * \return boolean true == Found
+ */
+struct VertPickData {
+ const MVert *mvert;
+ const float *mval_f; /* [2] */
+ ARegion *region;
+
+ /* runtime */
+ float len_best;
+ int v_idx_best;
+};
+
+static void ed_mesh_pick_vert__mapFunc(void *userData,
+ int index,
+ const float co[3],
+ const float UNUSED(no[3]))
+{
+ VertPickData *data = static_cast<VertPickData *>(userData);
+ if ((data->mvert[index].flag & ME_HIDE) == 0) {
+ float sco[2];
+
+ if (ED_view3d_project_float_object(data->region, co, sco, V3D_PROJ_TEST_CLIP_DEFAULT) ==
+ V3D_PROJ_RET_OK) {
+ const float len = len_manhattan_v2v2(data->mval_f, sco);
+ if (len < data->len_best) {
+ data->len_best = len;
+ data->v_idx_best = index;
+ }
+ }
+ }
+}
+bool ED_mesh_pick_vert(
+ bContext *C, Object *ob, const int mval[2], uint dist_px, bool use_zbuf, uint *r_index)
+{
+ ViewContext vc;
+ Mesh *me = static_cast<Mesh *>(ob->data);
+
+ BLI_assert(me && GS(me->id.name) == ID_ME);
+
+ if (!me || me->totvert == 0) {
+ return false;
+ }
+
+ Depsgraph *depsgraph = CTX_data_ensure_evaluated_depsgraph(C);
+ ED_view3d_viewcontext_init(C, &vc, depsgraph);
+ ED_view3d_select_id_validate(&vc);
+
+ if (use_zbuf) {
+ if (dist_px > 0) {
+ /* sample rect to increase chances of selecting, so that when clicking
+ * on an face in the backbuf, we can still select a vert */
+ *r_index = DRW_select_buffer_find_nearest_to_point(
+ vc.depsgraph, vc.region, vc.v3d, mval, 1, me->totvert + 1, &dist_px);
+ }
+ else {
+ /* sample only on the exact position */
+ *r_index = DRW_select_buffer_sample_point(vc.depsgraph, vc.region, vc.v3d, mval);
+ }
+
+ if ((*r_index) == 0 || (*r_index) > (uint)me->totvert) {
+ return false;
+ }
+
+ (*r_index)--;
+ }
+ else {
+ Scene *scene_eval = DEG_get_evaluated_scene(vc.depsgraph);
+ Object *ob_eval = DEG_get_evaluated_object(vc.depsgraph, ob);
+
+ /* derived mesh to find deformed locations */
+ Mesh *me_eval = mesh_get_eval_final(vc.depsgraph, scene_eval, ob_eval, &CD_MASK_BAREMESH);
+ ARegion *region = vc.region;
+ RegionView3D *rv3d = static_cast<RegionView3D *>(region->regiondata);
+
+ /* find the vert closest to 'mval' */
+ const float mval_f[2] = {(float)mval[0], (float)mval[1]};
+
+ VertPickData data = {nullptr};
+
+ ED_view3d_init_mats_rv3d(ob, rv3d);
+
+ if (me_eval == nullptr) {
+ return false;
+ }
+
+ /* setup data */
+ data.mvert = me->mvert;
+ data.region = region;
+ data.mval_f = mval_f;
+ data.len_best = FLT_MAX;
+ data.v_idx_best = -1;
+
+ BKE_mesh_foreach_mapped_vert(me_eval, ed_mesh_pick_vert__mapFunc, &data, MESH_FOREACH_NOP);
+
+ if (data.v_idx_best == -1) {
+ return false;
+ }
+
+ *r_index = data.v_idx_best;
+ }
+
+ return true;
+}
+
+MDeformVert *ED_mesh_active_dvert_get_em(Object *ob, BMVert **r_eve)
+{
+ if (ob->mode & OB_MODE_EDIT && ob->type == OB_MESH) {
+ Mesh *me = static_cast<Mesh *>(ob->data);
+ if (!BLI_listbase_is_empty(&me->vertex_group_names)) {
+ BMesh *bm = me->edit_mesh->bm;
+ const int cd_dvert_offset = CustomData_get_offset(&bm->vdata, CD_MDEFORMVERT);
+
+ if (cd_dvert_offset != -1) {
+ BMVert *eve = BM_mesh_active_vert_get(bm);
+
+ if (eve) {
+ if (r_eve) {
+ *r_eve = eve;
+ }
+ return static_cast<MDeformVert *>(BM_ELEM_CD_GET_VOID_P(eve, cd_dvert_offset));
+ }
+ }
+ }
+ }
+
+ if (r_eve) {
+ *r_eve = nullptr;
+ }
+ return nullptr;
+}
+
+MDeformVert *ED_mesh_active_dvert_get_ob(Object *ob, int *r_index)
+{
+ Mesh *me = static_cast<Mesh *>(ob->data);
+ int index = BKE_mesh_mselect_active_get(me, ME_VSEL);
+ if (r_index) {
+ *r_index = index;
+ }
+ if (index == -1 || me->dvert == nullptr) {
+ return nullptr;
+ }
+ return me->dvert + index;
+}
+
+MDeformVert *ED_mesh_active_dvert_get_only(Object *ob)
+{
+ if (ob->type == OB_MESH) {
+ if (ob->mode & OB_MODE_EDIT) {
+ return ED_mesh_active_dvert_get_em(ob, nullptr);
+ }
+ return ED_mesh_active_dvert_get_ob(ob, nullptr);
+ }
+ return nullptr;
+}
+
+void EDBM_mesh_stats_multi(Object **objects,
+ const uint objects_len,
+ int totelem[3],
+ int totelem_sel[3])
+{
+ if (totelem) {
+ totelem[0] = 0;
+ totelem[1] = 0;
+ totelem[2] = 0;
+ }
+ if (totelem_sel) {
+ totelem_sel[0] = 0;
+ totelem_sel[1] = 0;
+ totelem_sel[2] = 0;
+ }
+
+ for (uint ob_index = 0; ob_index < objects_len; ob_index++) {
+ Object *obedit = objects[ob_index];
+ BMEditMesh *em = BKE_editmesh_from_object(obedit);
+ BMesh *bm = em->bm;
+ if (totelem) {
+ totelem[0] += bm->totvert;
+ totelem[1] += bm->totedge;
+ totelem[2] += bm->totface;
+ }
+ if (totelem_sel) {
+ totelem_sel[0] += bm->totvertsel;
+ totelem_sel[1] += bm->totedgesel;
+ totelem_sel[2] += bm->totfacesel;
+ }
+ }
+}
+
+void EDBM_mesh_elem_index_ensure_multi(Object **objects, const uint objects_len, const char htype)
+{
+ int elem_offset[4] = {0, 0, 0, 0};
+ for (uint ob_index = 0; ob_index < objects_len; ob_index++) {
+ Object *obedit = objects[ob_index];
+ BMEditMesh *em = BKE_editmesh_from_object(obedit);
+ BMesh *bm = em->bm;
+ BM_mesh_elem_index_ensure_ex(bm, htype, elem_offset);
+ }
+}