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/*
* 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.
*/
/** \file
* \ingroup bmesh
*
* Basic mirror, optionally with UVs's.
*/
#include "MEM_guardedalloc.h"
#include "DNA_meshdata_types.h"
#include "BLI_math.h"
#include "BKE_customdata.h"
#include "bmesh.h"
#include "intern/bmesh_operators_private.h" /* own include */
#define ELE_NEW 1
void bmo_mirror_exec(BMesh *bm, BMOperator *op)
{
BMOperator dupeop, weldop;
BMOIter siter;
BMVert *v;
float scale[3] = {1.0f, 1.0f, 1.0f};
float dist = BMO_slot_float_get(op->slots_in, "merge_dist");
int i;
int axis = BMO_slot_int_get(op->slots_in, "axis");
bool mirror_u = BMO_slot_bool_get(op->slots_in, "mirror_u");
bool mirror_v = BMO_slot_bool_get(op->slots_in, "mirror_v");
bool mirror_udim = BMO_slot_bool_get(op->slots_in, "mirror_udim");
BMOpSlot *slot_targetmap;
BMOpSlot *slot_vertmap;
BMO_op_initf(bm, &dupeop, op->flag, "duplicate geom=%s", op, "geom");
BMO_op_exec(bm, &dupeop);
BMO_slot_buffer_flag_enable(bm, dupeop.slots_out, "geom.out", BM_ALL_NOLOOP, ELE_NEW);
/* feed old data to transform bmo */
scale[axis] = -1.0f;
BMO_op_callf(bm,
op->flag,
"scale verts=%fv vec=%v space=%s use_shapekey=%s",
ELE_NEW,
scale,
op,
"matrix",
op,
"use_shapekey");
BMO_op_init(bm, &weldop, op->flag, "weld_verts");
slot_targetmap = BMO_slot_get(weldop.slots_in, "targetmap");
slot_vertmap = BMO_slot_get(dupeop.slots_out, "vert_map.out");
BMO_ITER (v, &siter, op->slots_in, "geom", BM_VERT) {
if (fabsf(v->co[axis]) <= dist) {
BMVert *v_new = BMO_slot_map_elem_get(slot_vertmap, v);
BLI_assert(v_new != NULL);
BMO_slot_map_elem_insert(&weldop, slot_targetmap, v_new, v);
}
}
if (mirror_u || mirror_v) {
BMFace *f;
BMLoop *l;
MLoopUV *luv;
const int totlayer = CustomData_number_of_layers(&bm->ldata, CD_MLOOPUV);
BMIter liter;
BMO_ITER (f, &siter, dupeop.slots_out, "geom.out", BM_FACE) {
BM_ITER_ELEM (l, &liter, f, BM_LOOPS_OF_FACE) {
for (i = 0; i < totlayer; i++) {
luv = CustomData_bmesh_get_n(&bm->ldata, l->head.data, CD_MLOOPUV, i);
if (mirror_u) {
float uv_u = luv->uv[0];
if (mirror_udim) {
luv->uv[0] = ceilf(uv_u) - fmodf(uv_u, 1.0f);
}
else {
luv->uv[0] = 1.0f - uv_u;
}
}
if (mirror_v) {
float uv_v = luv->uv[1];
if (mirror_udim) {
luv->uv[1] = ceilf(uv_v) - fmodf(uv_v, 1.0f);
}
else {
luv->uv[1] = 1.0f - uv_v;
}
}
}
}
}
}
BMO_op_exec(bm, &weldop);
BMO_op_finish(bm, &weldop);
BMO_op_finish(bm, &dupeop);
BMO_slot_buffer_from_enabled_flag(bm, op, op->slots_out, "geom.out", BM_ALL_NOLOOP, ELE_NEW);
}
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