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blender-archive/source/blender/editors/mesh/meshtools.c
Dalai Felinto c35f1d05ea Farewell Scene->basact
2017-11-09 13:23:41 -02:00

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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2004 by Blender Foundation
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/editors/mesh/meshtools.c
* \ingroup edmesh
*
* meshtools.c: no editmode (violated already :), mirror & join),
* tools operating on meshes
*/
#include "MEM_guardedalloc.h"
#include "DNA_mesh_types.h"
#include "DNA_key_types.h"
#include "DNA_material_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 "BLI_math.h"
#include "BLI_blenlib.h"
#include "BLI_kdtree.h"
#include "BKE_context.h"
#include "BKE_deform.h"
#include "BKE_DerivedMesh.h"
#include "BKE_key.h"
#include "BKE_library.h"
#include "BKE_main.h"
#include "BKE_mesh.h"
#include "BKE_material.h"
#include "BKE_object.h"
#include "BKE_report.h"
#include "BKE_editmesh.h"
#include "BKE_multires.h"
#include "DEG_depsgraph.h"
#include "DEG_depsgraph_build.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(
bContext *C, Main *bmain, Scene *scene,
Object *ob_dst, Object *ob_src, 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)
{
EvaluationContext eval_ctx;
int a, b;
Mesh *me = ob_src->data;
MVert *mvert = *mvert_pp;
MEdge *medge = *medge_pp;
MLoop *mloop = *mloop_pp;
MPoly *mpoly = *mpoly_pp;
CTX_data_eval_ctx(C, &eval_ctx);
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, CD_DEFAULT, totvert);
CustomData_copy_data_named(&me->vdata, vdata, 0, *vertofs, me->totvert);
/* vertex groups */
MDeformVert *dvert = CustomData_get(vdata, *vertofs, CD_MDEFORMVERT);
MDeformVert *dvert_src = CustomData_get(&me->vdata, 0, CD_MDEFORMVERT);
/* Remap to correct new vgroup indices, if needed. */
if (dvert_src) {
BLI_assert(dvert != NULL);
/* Build src to merged mapping of vgroup indices. */
bDeformGroup *dg_src;
int *vgroup_index_map = alloca(sizeof(*vgroup_index_map) * BLI_listbase_count(&ob_src->defbase));
bool is_vgroup_remap_needed = false;
for (dg_src = ob_src->defbase.first, b = 0; dg_src; dg_src = dg_src->next, b++) {
vgroup_index_map[b] = defgroup_name_index(ob_dst, dg_src->name);
is_vgroup_remap_needed = is_vgroup_remap_needed || (vgroup_index_map[b] != b);
}
if (is_vgroup_remap_needed) {
for (a = 0; a < me->totvert; a++) {
for (b = 0; b < dvert[a].totweight; b++) {
dvert[a].dw[b].def_nr = vgroup_index_map[dvert_src[a].dw[b].def_nr];
}
}
}
}
/* 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 matmul order really goes wrong */
mul_m4_m4m4(cmat, imat, ob_src->obmat);
/* transform vertex coordinates into new space */
for (a = 0, mvert = *mvert_pp; a < me->totvert; a++, mvert++) {
mul_m4_v3(cmat, mvert->co);
}
/* for each shapekey 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 shapekeys, check first, otherwise just copy coordinates */
for (KeyBlock *kb = key->block.first; kb; kb = kb->next) {
/* get pointer to where to write data for this mesh in shapekey's data array */
float (*cos)[3] = ((float (*)[3])kb->data) + *vertofs;
/* check if this mesh has such a shapekey */
KeyBlock *okb = me->key ? BKE_keyblock_find_name(me->key, kb->name) : NULL;
if (okb) {
/* copy this mesh's shapekey to the destination shapekey (need to transform first) */
float (*ocos)[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 shapekey */
for (a = 0, mvert = *mvert_pp; a < me->totvert; a++, cos++, mvert++) {
copy_v3_v3(*cos, mvert->co);
}
}
}
}
}
else {
/* for each shapekey 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) {
for (KeyBlock *kb = key->block.first; kb; kb = kb->next) {
/* get pointer to where to write data for this mesh in shapekey's data array */
float (*cos)[3] = ((float (*)[3])kb->data) + *vertofs;
/* check if this was one of the original shapekeys */
KeyBlock *okb = nkey ? BKE_keyblock_find_name(nkey, kb->name) : NULL;
if (okb) {
/* copy this mesh's shapekey to the destination shapekey */
float (*ocos)[3] = okb->data;
for (a = 0; a < me->totvert; a++, cos++, ocos++) {
copy_v3_v3(*cos, *ocos);
}
}
else {
/* copy base-coordinates to the destination shapekey */
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, 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(&eval_ctx, 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, 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 = give_current_material(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, 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;
}
}
/* 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;
}
int join_mesh_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 = NULL, *ma;
Mesh *me;
MVert *mvert = NULL;
MEdge *medge = NULL;
MPoly *mpoly = NULL;
MLoop *mloop = NULL;
Key *key, *nkey = NULL;
KeyBlock *kb, *kbn;
float imat[4][4];
int a, b, totcol, totmat = 0, totedge = 0, totvert = 0;
int totloop = 0, totpoly = 0, vertofs, *matmap = NULL;
int i, haskey = 0, edgeofs, loopofs, polyofs;
bool ok = false;
bDeformGroup *dg, *odg;
CustomData vdata, edata, fdata, ldata, pdata;
if (scene->obedit) {
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;
}
/* count & check */
CTX_DATA_BEGIN (C, Base *, base, selected_editable_bases)
{
if (base->object->type == OB_MESH) {
me = base->object->data;
totvert += me->totvert;
totedge += me->totedge;
totloop += me->totloop;
totpoly += me->totpoly;
totmat += base->object->totcol;
if (base->object == ob)
ok = true;
/* check for shapekeys */
if (me->key)
haskey++;
}
}
CTX_DATA_END;
/* 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 (totvert == 0 || totvert == 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);
/* new material indices and material array */
if (totmat) {
matar = MEM_callocN(sizeof(*matar) * totmat, "join_mesh matar");
matmap = MEM_callocN(sizeof(*matmap) * totmat, "join_mesh matmap");
}
totcol = ob->totcol;
/* obact materials in new main array, is nicer start! */
for (a = 0; a < ob->totcol; a++) {
matar[a] = give_current_material(ob, a + 1);
id_us_plus((ID *)matar[a]);
/* increase id->us : will be lowered later */
}
/* - if destination mesh had shapekeys, move them somewhere safe, and set up placeholders
* with arrays that are large enough to hold shapekey data for all meshes
* - if destination mesh didn't have shapekeys, but we encountered some in the meshes we're
* joining, set up a new keyblock and assign to the mesh
*/
if (key) {
/* make a duplicate copy that will only be used here... (must remember to free it!) */
nkey = BKE_key_copy(bmain, key);
/* for all keys in old block, clear data-arrays */
for (kb = key->block.first; kb; kb = kb->next) {
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((ID *)me);
key->type = KEY_RELATIVE;
}
/* first pass over objects - copying materials and vertexgroups across */
CTX_DATA_BEGIN (C, Base *, base, selected_editable_bases)
{
/* only act if a mesh, and not the one we're joining to */
if ((ob != base->object) && (base->object->type == OB_MESH)) {
me = base->object->data;
/* Join this object's vertex groups to the base one's */
for (dg = base->object->defbase.first; dg; dg = dg->next) {
/* See if this group exists in the object (if it doesn't, add it to the end) */
if (!defgroup_find_name(ob, dg->name)) {
odg = MEM_callocN(sizeof(bDeformGroup), "join deformGroup");
memcpy(odg, dg, sizeof(bDeformGroup));
BLI_addtail(&ob->defbase, odg);
}
}
if (ob->defbase.first && ob->actdef == 0)
ob->actdef = 1;
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 <= base->object->totcol; a++) {
ma = give_current_material(base->object, 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 shapekeys, check if destination mesh already has matching entries too */
if (me->key && key) {
/* for remapping KeyBlock.relative */
int *index_map = MEM_mallocN(sizeof(int) * me->key->totkey, __func__);
KeyBlock **kb_map = MEM_mallocN(sizeof(KeyBlock *) * me->key->totkey, __func__);
for (kb = me->key->block.first, i = 0; kb; kb = kb->next, i++) {
BLI_assert(i < me->key->totkey);
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 */
for (kb = me->key->block.first, i = 0; kb; kb = kb->next, i++) {
if (LIKELY(kb->relative < me->key->totkey)) { /* sanity check, should always be true */
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 = CustomData_add_layer(&vdata, CD_MVERT, CD_CALLOC, NULL, totvert);
medge = CustomData_add_layer(&edata, CD_MEDGE, CD_CALLOC, NULL, totedge);
mloop = CustomData_add_layer(&ldata, CD_MLOOP, CD_CALLOC, NULL, totloop);
mpoly = CustomData_add_layer(&pdata, CD_MPOLY, CD_CALLOC, NULL, totpoly);
vertofs = 0;
edgeofs = 0;
loopofs = 0;
polyofs = 0;
/* inverse transform for all selected meshes in this object */
invert_m4_m4(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(
C, 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, Base *, base, selected_editable_bases)
{
if (base->object == ob) {
continue;
}
/* only join if this is a mesh */
if (base->object->type == OB_MESH) {
join_mesh_single(
C, bmain, scene,
ob, base->object, 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 (base->object != ob) {
ED_object_base_free_and_unlink(bmain, scene, base->object);
}
}
}
CTX_DATA_END;
/* return to mesh we're merging to */
me = 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);
/* update normals in case objects with non-uniform scale are joined */
BKE_mesh_calc_normals(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);
}
if (ob->mat) MEM_freeN(ob->mat);
if (ob->matbits) MEM_freeN(ob->matbits);
if (me->mat) MEM_freeN(me->mat);
ob->mat = me->mat = NULL;
ob->matbits = NULL;
if (totcol) {
me->mat = matar;
ob->mat = MEM_callocN(sizeof(*ob->mat) * totcol, "join obmatar");
ob->matbits = MEM_callocN(sizeof(*ob->matbits) * totcol, "join obmatbits");
MEM_freeN(matmap);
}
ob->totcol = me->totcol = totcol;
/* other mesh users */
test_all_objects_materials(bmain, (ID *)me);
/* free temp copy of destination shapekeys (if applicable) */
if (nkey) {
/* We can assume nobody is using that ID currently. */
BKE_libblock_free_ex(bmain, nkey, false, false);
}
/* ensure newly inserted keys are time sorted */
if (key && (key->type != KEY_RELATIVE)) {
BKE_key_sort(key);
}
/* Due to dependnecy 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, OB_RECALC_OB | OB_RECALC_DATA);
WM_event_add_notifier(C, NC_SCENE | ND_OB_ACTIVE, scene);
return OPERATOR_FINISHED;
}
/*********************** JOIN AS SHAPES ***************************/
/* Append selected meshes vertex locations as shapes of the active mesh,
* return 0 if no join is made (error) and 1 of the join is done */
int join_mesh_shapes_exec(bContext *C, wmOperator *op)
{
Scene *scene = CTX_data_scene(C);
Object *ob = CTX_data_active_object(C);
EvaluationContext eval_ctx;
Mesh *me = (Mesh *)ob->data;
Mesh *selme = NULL;
DerivedMesh *dm = NULL;
Key *key = me->key;
KeyBlock *kb;
bool ok = false, nonequal_verts = false;
CTX_data_eval_ctx(C, &eval_ctx);
CTX_DATA_BEGIN (C, Base *, base, selected_editable_bases)
{
if (base->object == ob) continue;
if (base->object->type == OB_MESH) {
selme = (Mesh *)base->object->data;
if (selme->totvert == me->totvert)
ok = true;
else
nonequal_verts = 1;
}
}
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 == NULL) {
key = me->key = BKE_key_add((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, NULL);
BKE_keyblock_convert_from_mesh(me, kb);
}
/* now ready to add new keys from selected meshes */
CTX_DATA_BEGIN (C, Base *, base, selected_editable_bases)
{
if (base->object == ob) continue;
if (base->object->type == OB_MESH) {
selme = (Mesh *)base->object->data;
if (selme->totvert == me->totvert) {
dm = mesh_get_derived_deform(&eval_ctx, scene, base->object, CD_MASK_BAREMESH);
if (!dm) continue;
kb = BKE_keyblock_add(key, base->object->id.name + 2);
DM_to_meshkey(dm, me, kb);
dm->release(dm);
}
}
}
CTX_DATA_END;
WM_event_add_notifier(C, NC_SCENE | ND_OB_ACTIVE, scene);
return OPERATOR_FINISHED;
}
/* -------------------------------------------------------------------- */
/* Mesh Mirror (Spatial) */
/** \name Mesh Spatial Mirror API
* \{ */
#define KD_THRESH 0.00002f
static struct { void *tree; } MirrKdStore = {NULL};
/* mode is 's' start, or 'e' end, or 'u' use */
/* if end, ob can be NULL */
int ED_mesh_mirror_spatial_table(Object *ob, BMEditMesh *em, DerivedMesh *dm, const float co[3], char mode)
{
if (mode == 'u') { /* use table */
if (MirrKdStore.tree == NULL)
ED_mesh_mirror_spatial_table(ob, em, dm, NULL, 's');
if (MirrKdStore.tree) {
KDTreeNearest nearest;
const int i = BLI_kdtree_find_nearest(MirrKdStore.tree, co, &nearest);
if (i != -1) {
if (nearest.dist < KD_THRESH) {
return i;
}
}
}
return -1;
}
else if (mode == 's') { /* start table */
Mesh *me = ob->data;
const bool use_em = (!dm && em && me->edit_btmesh == em);
const int totvert = use_em ? em->bm->totvert : dm ? dm->getNumVerts(dm) : me->totvert;
if (MirrKdStore.tree) /* happens when entering this call without ending it */
ED_mesh_mirror_spatial_table(ob, em, dm, co, 'e');
MirrKdStore.tree = BLI_kdtree_new(totvert);
if (use_em) {
BMVert *eve;
BMIter iter;
int i;
/* this needs to be valid for index lookups later (callers need) */
BM_mesh_elem_table_ensure(em->bm, BM_VERT);
BM_ITER_MESH_INDEX (eve, &iter, em->bm, BM_VERTS_OF_MESH, i) {
BLI_kdtree_insert(MirrKdStore.tree, i, eve->co);
}
}
else {
MVert *mvert = dm ? dm->getVertArray(dm) : me->mvert;
int i;
for (i = 0; i < totvert; i++, mvert++) {
BLI_kdtree_insert(MirrKdStore.tree, i, mvert->co);
}
}
BLI_kdtree_balance(MirrKdStore.tree);
}
else if (mode == 'e') { /* end table */
if (MirrKdStore.tree) {
BLI_kdtree_free(MirrKdStore.tree);
MirrKdStore.tree = NULL;
}
}
else {
BLI_assert(0);
}
return 0;
}
/** \} */
/* -------------------------------------------------------------------- */
/* Mesh Mirror (Topology) */
/** \name Mesh Topology Mirror API
* \{ */
static MirrTopoStore_t mesh_topo_store = {NULL, -1. - 1, -1};
/* mode is 's' start, or 'e' end, or 'u' use */
/* if end, ob can be NULL */
/* note, is supposed return -1 on error, which callers are currently checking for, but is not used so far */
int ED_mesh_mirror_topo_table(Object *ob, DerivedMesh *dm, char mode)
{
if (mode == 'u') { /* use table */
if (ED_mesh_mirrtopo_recalc_check(ob->data, dm, ob->mode, &mesh_topo_store)) {
ED_mesh_mirror_topo_table(ob, dm, 's');
}
}
else if (mode == 's') { /* start table */
ED_mesh_mirrtopo_init(ob->data, dm, ob->mode, &mesh_topo_store, false);
}
else if (mode == 'e') { /* end table */
ED_mesh_mirrtopo_free(&mesh_topo_store);
}
else {
BLI_assert(0);
}
return 0;
}
/** \} */
static int mesh_get_x_mirror_vert_spatial(Object *ob, DerivedMesh *dm, int index)
{
Mesh *me = ob->data;
MVert *mvert = dm ? dm->getVertArray(dm) : 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(ob, NULL, dm, vec, 'u');
}
static int mesh_get_x_mirror_vert_topo(Object *ob, DerivedMesh *dm, int index)
{
if (ED_mesh_mirror_topo_table(ob, dm, 'u') == -1)
return -1;
return mesh_topo_store.index_lookup[index];
}
int mesh_get_x_mirror_vert(Object *ob, DerivedMesh *dm, int index, const bool use_topology)
{
if (use_topology) {
return mesh_get_x_mirror_vert_topo(ob, dm, index);
}
else {
return mesh_get_x_mirror_vert_spatial(ob, dm, 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 NULL;
}
vec[0] = -co[0];
vec[1] = co[1];
vec[2] = co[2];
i = ED_mesh_mirror_spatial_table(ob, em, NULL, vec, 'u');
if (i != -1) {
return BM_vert_at_index(em->bm, i);
}
return NULL;
}
static BMVert *editbmesh_get_x_mirror_vert_topo(Object *ob, struct BMEditMesh *em, BMVert *eve, int index)
{
intptr_t poinval;
if (ED_mesh_mirror_topo_table(ob, NULL, 'u') == -1)
return NULL;
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 NULL;
}
}
poinval = mesh_topo_store.index_lookup[index];
if (poinval != -1)
return (BMVert *)(poinval);
return NULL;
}
BMVert *editbmesh_get_x_mirror_vert(Object *ob, struct 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);
}
else {
return editbmesh_get_x_mirror_vert_spatial(ob, em, co);
}
}
/**
* Wrapper for objectmode/editmode.
*
* call #BM_mesh_elem_table_ensure first for editmesh.
*/
int ED_mesh_mirror_get_vert(Object *ob, int index)
{
Mesh *me = ob->data;
BMEditMesh *em = me->edit_btmesh;
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, NULL, 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 NULL;
}
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) {
uv_poly_center(efa, cent, cd_loop_uv_offset);
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 NULL;
}
#endif
static unsigned int mirror_facehash(const void *ptr)
{
const MFace *mf = ptr;
unsigned int 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;
else if (a->v4 == b->v1 && a->v1 == b->v2 && a->v2 == b->v3 && a->v3 == b->v4)
return 1;
else if (a->v3 == b->v1 && a->v4 == b->v2 && a->v1 == b->v3 && a->v2 == b->v4)
return 2;
else 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;
else if (a->v3 == b->v1 && a->v1 == b->v2 && a->v2 == b->v3)
return 1;
else 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);
}
/* BMESH_TODO, convert to MPoly (functions above also) */
int *mesh_get_x_mirror_faces(Object *ob, BMEditMesh *em, DerivedMesh *dm)
{
Mesh *me = ob->data;
MVert *mv, *mvert;
MFace mirrormf, *mf, *hashmf, *mface;
GHash *fhash;
int *mirrorverts, *mirrorfaces;
BLI_assert(em == NULL); /* Does not work otherwise, currently... */
const bool use_topology = (me->editflag & ME_EDIT_MIRROR_TOPO) != 0;
const int totvert = dm ? dm->getNumVerts(dm) : me->totvert;
const int totface = dm ? dm->getNumTessFaces(dm) : me->totface;
int a;
mirrorverts = MEM_callocN(sizeof(int) * totvert, "MirrorVerts");
mirrorfaces = MEM_callocN(sizeof(int) * 2 * totface, "MirrorFaces");
mvert = dm ? dm->getVertArray(dm) : me->mvert;
mface = dm ? dm->getTessFaceArray(dm) : me->mface;
ED_mesh_mirror_spatial_table(ob, em, dm, NULL, 's');
for (a = 0, mv = mvert; a < totvert; a++, mv++)
mirrorverts[a] = mesh_get_x_mirror_vert(ob, dm, a, use_topology);
ED_mesh_mirror_spatial_table(ob, em, dm, NULL, 'e');
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(unsigned int, mirrormf.v1, mirrormf.v3);
SWAP(unsigned int, mirrormf.v2, mirrormf.v4);
}
hashmf = 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, NULL, NULL);
MEM_freeN(mirrorverts);
return mirrorfaces;
}
/* selection, vertex and face */
/* returns 0 if not found, otherwise 1 */
/**
* Face selection in object mode,
* currently only weight-paint and vertex-paint use this.
*
* \return boolean true == Found
*/
bool ED_mesh_pick_face(bContext *C, Object *ob, const int mval[2], unsigned int *index, int size)
{
EvaluationContext eval_ctx;
ViewContext vc;
Mesh *me = ob->data;
BLI_assert(me && GS(me->id.name) == ID_ME);
if (!me || me->totpoly == 0)
return false;
CTX_data_eval_ctx(C, &eval_ctx);
view3d_set_viewcontext(C, &vc);
if (size) {
/* sample rect to increase chances of selecting, so that when clicking
* on an edge in the backbuf, we can still select a face */
float dummy_dist;
*index = ED_view3d_backbuf_sample_rect(&eval_ctx, &vc, mval, size, 1, me->totpoly + 1, &dummy_dist);
}
else {
/* sample only on the exact position */
*index = ED_view3d_backbuf_sample(&eval_ctx, &vc, mval[0], mval[1]);
}
if ((*index) == 0 || (*index) > (unsigned int)me->totpoly)
return false;
(*index)--;
return true;
}
static void ed_mesh_pick_face_vert__mpoly_find(
/* context */
struct ARegion *ar, const float mval[2],
/* mesh data */
DerivedMesh *dm, MPoly *mp, 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 co[3], sco[2], len;
const int v_idx = ml->v;
dm->getVertCo(dm, v_idx, co);
if (ED_view3d_project_float_object(ar, co, sco, V3D_PROJ_TEST_NOP) == V3D_PROJ_RET_OK) {
len = len_manhattan_v2v2(mval, sco);
if (len < *r_len_best) {
*r_len_best = len;
*r_v_idx_best = v_idx;
}
}
}
}
/**
* Use when the back buffer stores face index values. but we want a vert.
* This gets the face then finds the closest vertex to mval.
*/
bool ED_mesh_pick_face_vert(bContext *C, Object *ob, const int mval[2], unsigned int *index, int size)
{
EvaluationContext eval_ctx;
unsigned int poly_index;
Mesh *me = ob->data;
CTX_data_eval_ctx(C, &eval_ctx);
BLI_assert(me && GS(me->id.name) == ID_ME);
if (ED_mesh_pick_face(C, ob, mval, &poly_index, size)) {
Scene *scene = CTX_data_scene(C);
struct ARegion *ar = CTX_wm_region(C);
/* derived mesh to find deformed locations */
DerivedMesh *dm = mesh_get_derived_final(&eval_ctx, scene, ob, CD_MASK_BAREMESH | CD_MASK_ORIGINDEX);
int v_idx_best = ORIGINDEX_NONE;
/* find the vert closest to 'mval' */
const float mval_f[2] = {UNPACK2(mval)};
float len_best = FLT_MAX;
MPoly *dm_mpoly;
MLoop *dm_mloop;
unsigned int dm_mpoly_tot;
const int *index_mp_to_orig;
dm_mpoly = dm->getPolyArray(dm);
dm_mloop = dm->getLoopArray(dm);
dm_mpoly_tot = dm->getNumPolys(dm);
index_mp_to_orig = dm->getPolyDataArray(dm, CD_ORIGINDEX);
/* tag all verts using this face */
if (index_mp_to_orig) {
unsigned int i;
for (i = 0; i < dm_mpoly_tot; i++) {
if (index_mp_to_orig[i] == poly_index) {
ed_mesh_pick_face_vert__mpoly_find(
ar, mval_f,
dm, &dm_mpoly[i], dm_mloop,
&len_best, &v_idx_best);
}
}
}
else {
if (poly_index < dm_mpoly_tot) {
ed_mesh_pick_face_vert__mpoly_find(
ar, mval_f,
dm, &dm_mpoly[poly_index], dm_mloop,
&len_best, &v_idx_best);
}
}
/* map 'dm -> me' index if possible */
if (v_idx_best != ORIGINDEX_NONE) {
const int *index_mv_to_orig;
index_mv_to_orig = dm->getVertDataArray(dm, CD_ORIGINDEX);
if (index_mv_to_orig) {
v_idx_best = index_mv_to_orig[v_idx_best];
}
}
dm->release(dm);
if ((v_idx_best != ORIGINDEX_NONE) && (v_idx_best < me->totvert)) {
*index = v_idx_best;
return true;
}
}
return false;
}
/**
* Vertex selection in object mode,
* currently only weight paint uses this.
*
* \return boolean true == Found
*/
typedef struct VertPickData {
const MVert *mvert;
const float *mval_f; /* [2] */
ARegion *ar;
/* runtime */
float len_best;
int v_idx_best;
} VertPickData;
static void ed_mesh_pick_vert__mapFunc(void *userData, int index, const float co[3],
const float UNUSED(no_f[3]), const short UNUSED(no_s[3]))
{
VertPickData *data = userData;
if ((data->mvert[index].flag & ME_HIDE) == 0) {
float sco[2];
if (ED_view3d_project_float_object(data->ar, 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], unsigned int *index, int size, bool use_zbuf)
{
EvaluationContext eval_ctx;
ViewContext vc;
Mesh *me = ob->data;
CTX_data_eval_ctx(C, &eval_ctx);
BLI_assert(me && GS(me->id.name) == ID_ME);
if (!me || me->totvert == 0)
return false;
view3d_set_viewcontext(C, &vc);
if (use_zbuf) {
if (size > 0) {
/* sample rect to increase chances of selecting, so that when clicking
* on an face in the backbuf, we can still select a vert */
float dummy_dist;
*index = ED_view3d_backbuf_sample_rect(&eval_ctx, &vc, mval, size, 1, me->totvert + 1, &dummy_dist);
}
else {
/* sample only on the exact position */
*index = ED_view3d_backbuf_sample(&eval_ctx, &vc, mval[0], mval[1]);
}
if ((*index) == 0 || (*index) > (unsigned int)me->totvert)
return false;
(*index)--;
}
else {
/* derived mesh to find deformed locations */
DerivedMesh *dm = mesh_get_derived_final(&eval_ctx, vc.scene, ob, CD_MASK_BAREMESH);
ARegion *ar = vc.ar;
RegionView3D *rv3d = ar->regiondata;
/* find the vert closest to 'mval' */
const float mval_f[2] = {(float)mval[0],
(float)mval[1]};
VertPickData data = {NULL};
ED_view3d_init_mats_rv3d(ob, rv3d);
if (dm == NULL) {
return false;
}
/* setup data */
data.mvert = me->mvert;
data.ar = ar;
data.mval_f = mval_f;
data.len_best = FLT_MAX;
data.v_idx_best = -1;
dm->foreachMappedVert(dm, ed_mesh_pick_vert__mapFunc, &data, DM_FOREACH_NOP);
dm->release(dm);
if (data.v_idx_best == -1) {
return false;
}
*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 && ob->defbase.first) {
Mesh *me = ob->data;
BMesh *bm = me->edit_btmesh->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 BM_ELEM_CD_GET_VOID_P(eve, cd_dvert_offset);
}
}
}
if (r_eve) *r_eve = NULL;
return NULL;
}
MDeformVert *ED_mesh_active_dvert_get_ob(Object *ob, int *r_index)
{
Mesh *me = ob->data;
int index = BKE_mesh_mselect_active_get(me, ME_VSEL);
if (r_index) *r_index = index;
if (index == -1 || me->dvert == NULL) {
return NULL;
}
else {
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, NULL);
}
else {
return ED_mesh_active_dvert_get_ob(ob, NULL);
}
}
else {
return NULL;
}
}
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