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blender-archive/source/blender/bmesh/operators/bmo_utils.c

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/* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup bmesh
*
* utility bmesh operators, e.g. transform,
* translate, rotate, scale, etc.
*/
#include "MEM_guardedalloc.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_object_types.h"
#include "BLI_alloca.h"
#include "BLI_math.h"
#include "BKE_attribute.h"
#include "BKE_customdata.h"
#include "BKE_object.h"
#include "bmesh.h"
#include "intern/bmesh_operators_private.h" /* own include */
#define ELE_NEW 1
void bmo_create_vert_exec(BMesh *bm, BMOperator *op)
{
float vec[3];
BMO_slot_vec_get(op->slots_in, "co", vec);
BMO_vert_flag_enable(bm, BM_vert_create(bm, vec, NULL, BM_CREATE_NOP), ELE_NEW);
BMO_slot_buffer_from_enabled_flag(bm, op, op->slots_out, "vert.out", BM_VERT, ELE_NEW);
}
void bmo_transform_exec(BMesh *bm, BMOperator *op)
{
BMOIter iter;
BMVert *v;
float mat[4][4], mat_space[4][4], imat_space[4][4];
const uint shape_keys_len = BMO_slot_bool_get(op->slots_in, "use_shapekey") ?
CustomData_number_of_layers(&bm->vdata, CD_SHAPEKEY) :
0;
const uint cd_shape_key_offset = CustomData_get_offset(&bm->vdata, CD_SHAPEKEY);
BMO_slot_mat4_get(op->slots_in, "matrix", mat);
BMO_slot_mat4_get(op->slots_in, "space", mat_space);
if (!is_zero_m4(mat_space)) {
invert_m4_m4(imat_space, mat_space);
mul_m4_series(mat, imat_space, mat, mat_space);
}
BMO_ITER (v, &iter, op->slots_in, "verts", BM_VERT) {
mul_m4_v3(mat, v->co);
if (shape_keys_len != 0) {
float(*co_dst)[3] = BM_ELEM_CD_GET_VOID_P(v, cd_shape_key_offset);
for (int i = 0; i < shape_keys_len; i++, co_dst++) {
mul_m4_v3(mat, *co_dst);
}
}
}
}
void bmo_translate_exec(BMesh *bm, BMOperator *op)
{
float mat[4][4], vec[3];
BMO_slot_vec_get(op->slots_in, "vec", vec);
unit_m4(mat);
copy_v3_v3(mat[3], vec);
BMO_op_callf(bm,
op->flag,
"transform matrix=%m4 space=%s verts=%s use_shapekey=%s",
mat,
op,
"space",
op,
"verts",
op,
"use_shapekey");
}
void bmo_scale_exec(BMesh *bm, BMOperator *op)
{
float mat[3][3], vec[3];
BMO_slot_vec_get(op->slots_in, "vec", vec);
unit_m3(mat);
mat[0][0] = vec[0];
mat[1][1] = vec[1];
mat[2][2] = vec[2];
BMO_op_callf(bm,
op->flag,
"transform matrix=%m3 space=%s verts=%s use_shapekey=%s",
mat,
op,
"space",
op,
"verts",
op,
"use_shapekey");
}
void bmo_rotate_exec(BMesh *bm, BMOperator *op)
{
float center[3];
float mat[4][4];
BMO_slot_vec_get(op->slots_in, "cent", center);
BMO_slot_mat4_get(op->slots_in, "matrix", mat);
transform_pivot_set_m4(mat, center);
BMO_op_callf(bm,
op->flag,
"transform matrix=%m4 space=%s verts=%s use_shapekey=%s",
mat,
op,
"space",
op,
"verts",
op,
"use_shapekey");
}
void bmo_reverse_faces_exec(BMesh *bm, BMOperator *op)
{
const int cd_loop_mdisp_offset = CustomData_get_offset(&bm->ldata, CD_MDISPS);
const bool use_loop_mdisp_flip = BMO_slot_bool_get(op->slots_in, "flip_multires");
BMOIter siter;
BMFace *f;
BMO_ITER (f, &siter, op->slots_in, "faces", BM_FACE) {
BM_face_normal_flip_ex(bm, f, cd_loop_mdisp_offset, use_loop_mdisp_flip);
}
}
#define SEL_FLAG 1
#define SEL_ORIG 2
static void bmo_face_flag_set_flush(BMesh *bm, BMFace *f, const short oflag, const bool value)
{
BMLoop *l_iter;
BMLoop *l_first;
BMO_face_flag_set(bm, f, oflag, value);
l_iter = l_first = BM_FACE_FIRST_LOOP(f);
do {
BMO_edge_flag_set(bm, l_iter->e, oflag, value);
BMO_vert_flag_set(bm, l_iter->v, oflag, value);
} while ((l_iter = l_iter->next) != l_first);
}
static void bmo_region_extend_expand(BMesh *bm,
BMOperator *op,
const bool use_faces,
const bool use_faces_step)
{
BMOIter siter;
if (!use_faces) {
BMVert *v;
BMO_ITER (v, &siter, op->slots_in, "geom", BM_VERT) {
bool found = false;
{
BMIter eiter;
BMEdge *e;
BM_ITER_ELEM (e, &eiter, v, BM_EDGES_OF_VERT) {
if (!BMO_edge_flag_test(bm, e, SEL_ORIG) && !BM_elem_flag_test(e, BM_ELEM_HIDDEN)) {
found = true;
break;
}
}
}
if (found) {
if (!use_faces_step) {
BMIter eiter;
BMEdge *e;
BM_ITER_ELEM (e, &eiter, v, BM_EDGES_OF_VERT) {
if (!BMO_edge_flag_test(bm, e, SEL_FLAG) && !BM_elem_flag_test(e, BM_ELEM_HIDDEN)) {
BMO_edge_flag_enable(bm, e, SEL_FLAG);
BMO_vert_flag_enable(bm, BM_edge_other_vert(e, v), SEL_FLAG);
}
}
}
else {
BMIter fiter;
BMFace *f;
BM_ITER_ELEM (f, &fiter, v, BM_FACES_OF_VERT) {
if (!BMO_face_flag_test(bm, f, SEL_FLAG) && !BM_elem_flag_test(f, BM_ELEM_HIDDEN)) {
bmo_face_flag_set_flush(bm, f, SEL_FLAG, true);
}
}
/* handle wire edges (when stepping over faces) */
{
BMIter eiter;
BMEdge *e;
BM_ITER_ELEM (e, &eiter, v, BM_EDGES_OF_VERT) {
if (BM_edge_is_wire(e)) {
if (!BMO_edge_flag_test(bm, e, SEL_FLAG) &&
!BM_elem_flag_test(e, BM_ELEM_HIDDEN)) {
BMO_edge_flag_enable(bm, e, SEL_FLAG);
BMO_vert_flag_enable(bm, BM_edge_other_vert(e, v), SEL_FLAG);
}
}
}
}
}
}
}
}
else {
BMFace *f;
BMO_ITER (f, &siter, op->slots_in, "geom", BM_FACE) {
BMIter liter;
BMLoop *l;
BM_ITER_ELEM (l, &liter, f, BM_LOOPS_OF_FACE) {
if (!use_faces_step) {
BMIter fiter;
BMFace *f_other;
BM_ITER_ELEM (f_other, &fiter, l->e, BM_FACES_OF_EDGE) {
if (!BMO_face_flag_test(bm, f_other, SEL_ORIG | SEL_FLAG) &&
!BM_elem_flag_test(f_other, BM_ELEM_HIDDEN)) {
BMO_face_flag_enable(bm, f_other, SEL_FLAG);
}
}
}
else {
BMIter fiter;
BMFace *f_other;
BM_ITER_ELEM (f_other, &fiter, l->v, BM_FACES_OF_VERT) {
if (!BMO_face_flag_test(bm, f_other, SEL_ORIG | SEL_FLAG) &&
!BM_elem_flag_test(f_other, BM_ELEM_HIDDEN)) {
BMO_face_flag_enable(bm, f_other, SEL_FLAG);
}
}
}
}
}
}
}
static void bmo_region_extend_contract(BMesh *bm,
BMOperator *op,
const bool use_faces,
const bool use_faces_step)
{
BMOIter siter;
if (!use_faces) {
BMVert *v;
BMO_ITER (v, &siter, op->slots_in, "geom", BM_VERT) {
bool found = false;
if (!use_faces_step) {
BMIter eiter;
BMEdge *e;
BM_ITER_ELEM (e, &eiter, v, BM_EDGES_OF_VERT) {
if (!BMO_edge_flag_test(bm, e, SEL_ORIG)) {
found = true;
break;
}
}
}
else {
BMIter fiter;
BMFace *f;
BM_ITER_ELEM (f, &fiter, v, BM_FACES_OF_VERT) {
if (!BMO_face_flag_test(bm, f, SEL_ORIG)) {
found = true;
break;
}
}
/* handle wire edges (when stepping over faces) */
if (!found) {
BMIter eiter;
BMEdge *e;
BM_ITER_ELEM (e, &eiter, v, BM_EDGES_OF_VERT) {
if (BM_edge_is_wire(e)) {
if (!BMO_edge_flag_test(bm, e, SEL_ORIG)) {
found = true;
break;
}
}
}
}
}
if (found) {
BMIter eiter;
BMEdge *e;
BMO_vert_flag_enable(bm, v, SEL_FLAG);
BM_ITER_ELEM (e, &eiter, v, BM_EDGES_OF_VERT) {
BMO_edge_flag_enable(bm, e, SEL_FLAG);
}
}
}
}
else {
BMFace *f;
BMO_ITER (f, &siter, op->slots_in, "geom", BM_FACE) {
BMIter liter;
BMLoop *l;
BM_ITER_ELEM (l, &liter, f, BM_LOOPS_OF_FACE) {
if (!use_faces_step) {
BMIter fiter;
BMFace *f_other;
BM_ITER_ELEM (f_other, &fiter, l->e, BM_FACES_OF_EDGE) {
if (!BMO_face_flag_test(bm, f_other, SEL_ORIG)) {
BMO_face_flag_enable(bm, f, SEL_FLAG);
break;
}
}
}
else {
BMIter fiter;
BMFace *f_other;
BM_ITER_ELEM (f_other, &fiter, l->v, BM_FACES_OF_VERT) {
if (!BMO_face_flag_test(bm, f_other, SEL_ORIG)) {
BMO_face_flag_enable(bm, f, SEL_FLAG);
break;
}
}
}
}
}
}
}
void bmo_region_extend_exec(BMesh *bm, BMOperator *op)
{
const bool use_faces = BMO_slot_bool_get(op->slots_in, "use_faces");
const bool use_face_step = BMO_slot_bool_get(op->slots_in, "use_face_step");
const bool constrict = BMO_slot_bool_get(op->slots_in, "use_contract");
BMO_slot_buffer_flag_enable(bm, op->slots_in, "geom", BM_ALL_NOLOOP, SEL_ORIG);
if (constrict) {
bmo_region_extend_contract(bm, op, use_faces, use_face_step);
}
else {
bmo_region_extend_expand(bm, op, use_faces, use_face_step);
}
BMO_slot_buffer_from_enabled_flag(bm, op, op->slots_out, "geom.out", BM_ALL_NOLOOP, SEL_FLAG);
}
void bmo_smooth_vert_exec(BMesh *UNUSED(bm), BMOperator *op)
{
BMOIter siter;
BMIter iter;
BMVert *v;
BMEdge *e;
float(*cos)[3] = MEM_mallocN(sizeof(*cos) * BMO_slot_buffer_len(op->slots_in, "verts"),
__func__);
float *co, *co2, clip_dist = BMO_slot_float_get(op->slots_in, "clip_dist");
const float fac = BMO_slot_float_get(op->slots_in, "factor");
int i, j, clipx, clipy, clipz;
int xaxis, yaxis, zaxis;
clipx = BMO_slot_bool_get(op->slots_in, "mirror_clip_x");
clipy = BMO_slot_bool_get(op->slots_in, "mirror_clip_y");
clipz = BMO_slot_bool_get(op->slots_in, "mirror_clip_z");
xaxis = BMO_slot_bool_get(op->slots_in, "use_axis_x");
yaxis = BMO_slot_bool_get(op->slots_in, "use_axis_y");
zaxis = BMO_slot_bool_get(op->slots_in, "use_axis_z");
i = 0;
BMO_ITER (v, &siter, op->slots_in, "verts", BM_VERT) {
co = cos[i];
zero_v3(co);
j = 0;
BM_ITER_ELEM (e, &iter, v, BM_EDGES_OF_VERT) {
co2 = BM_edge_other_vert(e, v)->co;
add_v3_v3v3(co, co, co2);
j += 1;
}
if (!j) {
copy_v3_v3(co, v->co);
i++;
continue;
}
mul_v3_fl(co, 1.0f / (float)j);
interp_v3_v3v3(co, v->co, co, fac);
if (clipx && fabsf(v->co[0]) <= clip_dist) {
co[0] = 0.0f;
}
if (clipy && fabsf(v->co[1]) <= clip_dist) {
co[1] = 0.0f;
}
if (clipz && fabsf(v->co[2]) <= clip_dist) {
co[2] = 0.0f;
}
i++;
}
i = 0;
BMO_ITER (v, &siter, op->slots_in, "verts", BM_VERT) {
if (xaxis) {
v->co[0] = cos[i][0];
}
if (yaxis) {
v->co[1] = cos[i][1];
}
if (zaxis) {
v->co[2] = cos[i][2];
}
i++;
}
MEM_freeN(cos);
}
/**************************************************************************** *
* Cycle UVs for a face
**************************************************************************** */
void bmo_rotate_uvs_exec(BMesh *bm, BMOperator *op)
{
BMOIter fs_iter; /* selected faces iterator */
BMFace *fs; /* current face */
BMIter l_iter; /* iteration loop */
const bool use_ccw = BMO_slot_bool_get(op->slots_in, "use_ccw");
const int cd_loop_uv_offset = CustomData_get_offset(&bm->ldata, CD_MLOOPUV);
if (cd_loop_uv_offset != -1) {
BMO_ITER (fs, &fs_iter, op->slots_in, "faces", BM_FACE) {
if (use_ccw == false) { /* same loops direction */
BMLoop *lf; /* current face loops */
MLoopUV *f_luv; /* first face loop uv */
float p_uv[2]; /* previous uvs */
float t_uv[2]; /* temp uvs */
int n = 0;
BM_ITER_ELEM (lf, &l_iter, fs, BM_LOOPS_OF_FACE) {
/* current loop uv is the previous loop uv */
MLoopUV *luv = BM_ELEM_CD_GET_VOID_P(lf, cd_loop_uv_offset);
if (n == 0) {
f_luv = luv;
copy_v2_v2(p_uv, luv->uv);
}
else {
copy_v2_v2(t_uv, luv->uv);
copy_v2_v2(luv->uv, p_uv);
copy_v2_v2(p_uv, t_uv);
}
n++;
}
copy_v2_v2(f_luv->uv, p_uv);
}
else { /* counter loop direction */
BMLoop *lf; /* current face loops */
MLoopUV *p_luv; /* previous loop uv */
MLoopUV *luv;
float t_uv[2]; /* current uvs */
int n = 0;
BM_ITER_ELEM (lf, &l_iter, fs, BM_LOOPS_OF_FACE) {
/* previous loop uv is the current loop uv */
luv = BM_ELEM_CD_GET_VOID_P(lf, cd_loop_uv_offset);
if (n == 0) {
p_luv = luv;
copy_v2_v2(t_uv, luv->uv);
}
else {
copy_v2_v2(p_luv->uv, luv->uv);
p_luv = luv;
}
n++;
}
copy_v2_v2(luv->uv, t_uv);
}
}
}
}
/**************************************************************************** *
* Reverse UVs for a face
**************************************************************************** */
static void bm_face_reverse_uvs(BMFace *f, const int cd_loop_uv_offset)
{
BMIter iter;
BMLoop *l;
int i;
float(*uvs)[2] = BLI_array_alloca(uvs, f->len);
BM_ITER_ELEM_INDEX (l, &iter, f, BM_LOOPS_OF_FACE, i) {
MLoopUV *luv = BM_ELEM_CD_GET_VOID_P(l, cd_loop_uv_offset);
copy_v2_v2(uvs[i], luv->uv);
}
/* now that we have the uvs in the array, reverse! */
BM_ITER_ELEM_INDEX (l, &iter, f, BM_LOOPS_OF_FACE, i) {
/* current loop uv is the previous loop uv */
MLoopUV *luv = BM_ELEM_CD_GET_VOID_P(l, cd_loop_uv_offset);
copy_v2_v2(luv->uv, uvs[(f->len - i - 1)]);
}
}
void bmo_reverse_uvs_exec(BMesh *bm, BMOperator *op)
{
BMOIter iter;
BMFace *f;
const int cd_loop_uv_offset = CustomData_get_offset(&bm->ldata, CD_MLOOPUV);
if (cd_loop_uv_offset != -1) {
BMO_ITER (f, &iter, op->slots_in, "faces", BM_FACE) {
bm_face_reverse_uvs(f, cd_loop_uv_offset);
}
}
}
/**************************************************************************** *
* Cycle colors for a face
**************************************************************************** */
static void bmo_get_loop_color_ref(BMesh *bm,
int index,
int *r_cd_color_offset,
int *r_cd_color_type)
{
Mesh me_query;
BKE_id_attribute_copy_domains_temp(
ID_ME, &bm->vdata, NULL, &bm->ldata, NULL, NULL, &me_query.id);
CustomDataLayer *layer = BKE_id_attribute_from_index(
&me_query.id, index, ATTR_DOMAIN_MASK_COLOR, CD_MASK_COLOR_ALL);
if (!layer || BKE_id_attribute_domain(&me_query.id, layer) != ATTR_DOMAIN_CORNER) {
*r_cd_color_offset = -1;
return;
}
int layer_i = CustomData_get_layer_index(&bm->ldata, layer->type);
*r_cd_color_offset = bm->ldata.layers[layer_i].offset;
*r_cd_color_type = layer->type;
}
void bmo_rotate_colors_exec(BMesh *bm, BMOperator *op)
{
BMOIter fs_iter; /* selected faces iterator */
BMFace *fs; /* current face */
BMIter l_iter; /* iteration loop */
const bool use_ccw = BMO_slot_bool_get(op->slots_in, "use_ccw");
const int color_index = BMO_slot_int_get(op->slots_in, "color_index");
int cd_loop_color_offset;
int cd_loop_color_type;
bmo_get_loop_color_ref(bm, color_index, &cd_loop_color_offset, &cd_loop_color_type);
if (cd_loop_color_offset == -1) {
BMO_error_raise(bm, op, BMO_ERROR_CANCEL, "color_index is invalid");
return;
}
const size_t size = cd_loop_color_type == CD_PROP_COLOR ? sizeof(MPropCol) : sizeof(MLoopCol);
void *p_col; /* previous color */
void *t_col = alloca(size); /* Temp color. */
BMO_ITER (fs, &fs_iter, op->slots_in, "faces", BM_FACE) {
if (use_ccw == false) { /* same loops direction */
BMLoop *lf; /* current face loops */
void *f_lcol; /* first face loop color */
int n = 0;
BM_ITER_ELEM (lf, &l_iter, fs, BM_LOOPS_OF_FACE) {
/* current loop color is the previous loop color */
void *lcol = BM_ELEM_CD_GET_VOID_P(lf, cd_loop_color_offset);
if (n == 0) {
f_lcol = lcol;
p_col = lcol;
}
else {
memcpy(t_col, lcol, size);
memcpy(lcol, p_col, size);
memcpy(p_col, t_col, size);
}
n++;
}
memcpy(f_lcol, p_col, size);
}
else { /* counter loop direction */
BMLoop *lf; /* current face loops */
void *lcol, *p_lcol;
int n = 0;
BM_ITER_ELEM (lf, &l_iter, fs, BM_LOOPS_OF_FACE) {
/* previous loop color is the current loop color */
lcol = BM_ELEM_CD_GET_VOID_P(lf, cd_loop_color_offset);
if (n == 0) {
p_lcol = lcol;
memcpy(t_col, lcol, size);
}
else {
memcpy(p_lcol, lcol, size);
p_lcol = lcol;
}
n++;
}
memcpy(lcol, t_col, size);
}
}
}
/*************************************************************************** *
* Reverse colors for a face
*************************************************************************** */
static void bm_face_reverse_colors(BMFace *f,
const int cd_loop_color_offset,
const int cd_loop_color_type)
{
BMIter iter;
BMLoop *l;
int i;
const size_t size = cd_loop_color_type == CD_PROP_COLOR ? sizeof(MPropCol) : sizeof(MLoopCol);
char *cols = alloca(size * f->len);
char *col = cols;
BM_ITER_ELEM_INDEX (l, &iter, f, BM_LOOPS_OF_FACE, i) {
void *lcol = BM_ELEM_CD_GET_VOID_P(l, cd_loop_color_offset);
memcpy((void *)col, lcol, size);
col += size;
}
/* now that we have the uvs in the array, reverse! */
BM_ITER_ELEM_INDEX (l, &iter, f, BM_LOOPS_OF_FACE, i) {
/* current loop uv is the previous loop color */
void *lcol = BM_ELEM_CD_GET_VOID_P(l, cd_loop_color_offset);
col = cols + (f->len - i - 1) * size;
memcpy(lcol, (void *)col, size);
}
}
void bmo_reverse_colors_exec(BMesh *bm, BMOperator *op)
{
BMOIter iter;
BMFace *f;
const int color_index = BMO_slot_int_get(op->slots_in, "color_index");
int cd_loop_color_offset;
int cd_loop_color_type;
bmo_get_loop_color_ref(bm, color_index, &cd_loop_color_offset, &cd_loop_color_type);
if (cd_loop_color_offset == -1) {
BMO_error_raise(bm, op, BMO_ERROR_CANCEL, "color_index is invalid");
return;
}
BMO_ITER (f, &iter, op->slots_in, "faces", BM_FACE) {
bm_face_reverse_colors(f, cd_loop_color_offset, cd_loop_color_type);
}
}
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