Campbell Barton
c434782e3a
Use a shorter/simpler license convention, stops the header taking so much space. Follow the SPDX license specification: https://spdx.org/licenses - C/C++/objc/objc++ - Python - Shell Scripts - CMake, GNUmakefile While most of the source tree has been included - `./extern/` was left out. - `./intern/cycles` & `./intern/atomic` are also excluded because they use different header conventions. doc/license/SPDX-license-identifiers.txt has been added to list SPDX all used identifiers. See P2788 for the script that automated these edits. Reviewed By: brecht, mont29, sergey Ref D14069
100 lines
2.6 KiB
C
100 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup bmesh
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*
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* Makes the mesh symmetrical by splitting along an axis and duplicating the geometry.
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*/
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#include "BLI_math.h"
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#include "BLI_utildefines.h"
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#include "bmesh.h"
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#include "intern/bmesh_operators_private.h"
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#define ELE_OUT 1
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void bmo_symmetrize_exec(BMesh *bm, BMOperator *op)
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{
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const float dist = BMO_slot_float_get(op->slots_in, "dist");
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const int direction = BMO_slot_int_get(op->slots_in, "direction");
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const int axis = direction % 3;
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BMOperator op_bisect;
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BMOperator op_dupe;
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BMOperator op_weld;
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BMOpSlot *slot_vertmap;
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BMOpSlot *slot_targetmap;
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float plane_no[3];
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float scale[3];
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BMOIter siter;
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BMVert *v;
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copy_v3_fl(plane_no, 0.0f);
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copy_v3_fl(scale, 1.0f);
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plane_no[axis] = direction > 2 ? -1.0f : 1.0f;
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scale[axis] *= -1.0f;
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/* Cut in half */
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BMO_op_initf(bm,
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&op_bisect,
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op->flag,
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"bisect_plane geom=%s plane_no=%v dist=%f clear_outer=%b use_snap_center=%b",
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op,
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"input",
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plane_no,
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dist,
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true,
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true);
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BMO_op_exec(bm, &op_bisect);
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/* Duplicate */
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BMO_op_initf(bm, &op_dupe, op->flag, "duplicate geom=%S", &op_bisect, "geom.out");
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BMO_op_exec(bm, &op_dupe);
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/* Flag for output (some will be merged) */
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BMO_slot_buffer_flag_enable(bm, op_bisect.slots_out, "geom.out", BM_ALL_NOLOOP, ELE_OUT);
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BMO_slot_buffer_flag_enable(bm, op_dupe.slots_out, "geom.out", BM_ALL_NOLOOP, ELE_OUT);
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BMO_op_callf(bm,
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op->flag,
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"scale verts=%S vec=%v use_shapekey=%s",
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&op_dupe,
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"geom.out",
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scale,
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op,
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"use_shapekey");
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/* important 'flip_multires' is disabled,
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* otherwise multi-res data will be reversed, see: T47788 */
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BMO_op_callf(bm, op->flag, "reverse_faces faces=%S", &op_dupe, "geom.out");
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/* Weld verts */
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BMO_op_init(bm, &op_weld, op->flag, "weld_verts");
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slot_vertmap = BMO_slot_get(op_dupe.slots_out, "vert_map.out");
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slot_targetmap = BMO_slot_get(op_weld.slots_in, "targetmap");
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BMO_ITER (v, &siter, op_bisect.slots_out, "geom_cut.out", BM_VERT) {
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BMVert *v_dupe = BMO_slot_map_elem_get(slot_vertmap, v);
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BMO_slot_map_elem_insert(&op_weld, slot_targetmap, v_dupe, v);
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}
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BMO_op_exec(bm, &op_weld);
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/* Cleanup */
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BMO_op_finish(bm, &op_weld);
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BMO_op_finish(bm, &op_dupe);
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BMO_op_finish(bm, &op_bisect);
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/* Create output */
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BMO_slot_buffer_from_enabled_flag(bm, op, op->slots_out, "geom.out", BM_ALL_NOLOOP, ELE_OUT);
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}
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