Campbell Barton
90d215535e
this is useful for bmesh tools that operate in object mode or for modifiers which would previously use hidden faces in some cases.
128 lines
3.5 KiB
C
128 lines
3.5 KiB
C
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Contributor(s): Joseph Eagar.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file blender/bmesh/operators/bmo_mirror.c
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* \ingroup bmesh
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*/
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#include "MEM_guardedalloc.h"
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#include "DNA_meshdata_types.h"
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#include "BLI_math.h"
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#include "BLI_array.h"
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#include "BKE_customdata.h"
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#include "bmesh.h"
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#include "intern/bmesh_operators_private.h" /* own include */
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#define ELE_NEW 1
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void bmo_mirror_exec(BMesh *bm, BMOperator *op)
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{
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BMOperator dupeop, weldop;
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BMOIter siter;
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BMIter iter;
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BMVert *v /* , *v2 */ /* UNUSED */, **vmap = NULL;
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BLI_array_declare(vmap);
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BMEdge /* *e, */ **emap = NULL;
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BLI_array_declare(emap);
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float mtx[4][4];
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float imtx[4][4];
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float scale[3] = {1.0f, 1.0f, 1.0f};
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float dist = BMO_slot_float_get(op, "mergedist");
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int i, ototvert /*, ototedge */;
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int axis = BMO_slot_int_get(op, "axis");
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int mirroru = BMO_slot_bool_get(op, "mirror_u");
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int mirrorv = BMO_slot_bool_get(op, "mirror_v");
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ototvert = bm->totvert;
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/* ototedge = bm->totedge; */ /* UNUSED */
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BMO_slot_mat4_get(op, "mat", mtx);
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invert_m4_m4(imtx, mtx);
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BMO_op_initf(bm, &dupeop, op->flag, "duplicate geom=%s", op, "geom");
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BMO_op_exec(bm, &dupeop);
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BMO_slot_buffer_flag_enable(bm, &dupeop, "newout", BM_ALL, ELE_NEW);
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/* create old -> new mappin */
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i = 0;
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/* v2 = BM_iter_new(&iter, bm, BM_VERTS_OF_MESH, NULL); */ /* UNUSED */
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BMO_ITER (v, &siter, bm, &dupeop, "newout", BM_VERT) {
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BLI_array_grow_one(vmap);
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vmap[i] = v;
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/* v2 = BM_iter_step(&iter); */ /* UNUSED */
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i++;
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}
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bm->elem_index_dirty |= BM_VERT;
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/* feed old data to transform bmo */
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scale[axis] = -1.0f;
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BMO_op_callf(bm, op->flag, "transform verts=%fv mat=%m4", ELE_NEW, mtx);
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BMO_op_callf(bm, op->flag, "scale verts=%fv vec=%v", ELE_NEW, scale);
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BMO_op_callf(bm, op->flag, "transform verts=%fv mat=%m4", ELE_NEW, imtx);
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BMO_op_init(bm, &weldop, op->flag, "weld_verts");
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v = BM_iter_new(&iter, bm, BM_VERTS_OF_MESH, NULL);
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for (i = 0; i < ototvert; i++) {
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if (ABS(v->co[axis]) <= dist) {
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BMO_slot_map_ptr_insert(bm, &weldop, "targetmap", vmap[i], v);
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}
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v = BM_iter_step(&iter);
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}
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if (mirroru || mirrorv) {
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BMFace *f;
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BMLoop *l;
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MLoopUV *luv;
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int totlayer;
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BMIter liter;
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BMO_ITER (f, &siter, bm, &dupeop, "newout", BM_FACE) {
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BM_ITER_ELEM (l, &liter, f, BM_LOOPS_OF_FACE) {
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totlayer = CustomData_number_of_layers(&bm->ldata, CD_MLOOPUV);
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for (i = 0; i < totlayer; i++) {
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luv = CustomData_bmesh_get_n(&bm->ldata, l->head.data, CD_MLOOPUV, i);
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if (mirroru)
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luv->uv[0] = 1.0f - luv->uv[0];
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if (mirrorv)
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luv->uv[1] = 1.0f - luv->uv[1];
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}
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}
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}
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}
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BMO_op_exec(bm, &weldop);
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BMO_op_finish(bm, &weldop);
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BMO_op_finish(bm, &dupeop);
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BMO_slot_buffer_from_enabled_flag(bm, op, "newout", BM_ALL, ELE_NEW);
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BLI_array_free(vmap);
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BLI_array_free(emap);
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}
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