Welcome to mirror list, hosted at ThFree Co, Russian Federation.

git.blender.org/blender.git - Unnamed repository; edit this file 'description' to name the repository.
summaryrefslogtreecommitdiff
path: root/source/blender/modifiers/intern/MOD_mirror.c
diff options
context:
space:
mode:
Diffstat (limited to 'source/blender/modifiers/intern/MOD_mirror.c')
-rw-r--r--source/blender/modifiers/intern/MOD_mirror.c375
1 files changed, 4 insertions, 371 deletions
diff --git a/source/blender/modifiers/intern/MOD_mirror.c b/source/blender/modifiers/intern/MOD_mirror.c
index 11f001d7a85..47f8528ee94 100644
--- a/source/blender/modifiers/intern/MOD_mirror.c
+++ b/source/blender/modifiers/intern/MOD_mirror.c
@@ -30,6 +30,7 @@
#include "BKE_library.h"
#include "BKE_library_query.h"
#include "BKE_mesh.h"
+#include "BKE_mirror.h"
#include "BKE_modifier.h"
#include "BKE_deform.h"
@@ -68,374 +69,6 @@ static void updateDepsgraph(ModifierData *md, const ModifierUpdateDepsgraphConte
}
}
-static Mesh *doBiscetOnMirrorPlane(
- MirrorModifierData *mmd, const Mesh *mesh, int axis, float plane_co[3], float plane_no[3])
-{
- bool do_bisect_flip_axis = ((axis == 0 && mmd->flag & MOD_MIR_BISECT_FLIP_AXIS_X) ||
- (axis == 1 && mmd->flag & MOD_MIR_BISECT_FLIP_AXIS_Y) ||
- (axis == 2 && mmd->flag & MOD_MIR_BISECT_FLIP_AXIS_Z));
-
- const float bisect_distance = 0.001f;
-
- Mesh *result;
- BMesh *bm;
- BMIter viter;
- BMVert *v, *v_next;
-
- bm = BKE_mesh_to_bmesh_ex(mesh,
- &(struct BMeshCreateParams){0},
- &(struct BMeshFromMeshParams){
- .calc_face_normal = true,
- .cd_mask_extra = {.vmask = CD_MASK_ORIGINDEX,
- .emask = CD_MASK_ORIGINDEX,
- .pmask = CD_MASK_ORIGINDEX},
- });
-
- /* Define bisecting plane (aka mirror plane). */
- float plane[4];
- if (!do_bisect_flip_axis) {
- /* That reversed condition is a tad weird, but for some reason that's how you keep
- * the part of the mesh which is on the non-mirrored side when flip option is disabled,
- * think that that is the expected behavior. */
- negate_v3(plane_no);
- }
- plane_from_point_normal_v3(plane, plane_co, plane_no);
-
- BM_mesh_bisect_plane(bm, plane, false, false, 0, 0, bisect_distance);
-
- /* Plane definitions for vert killing. */
- float plane_offset[4];
- copy_v3_v3(plane_offset, plane);
- plane_offset[3] = plane[3] - bisect_distance;
-
- /* Delete verts across the mirror plane. */
- BM_ITER_MESH_MUTABLE (v, v_next, &viter, bm, BM_VERTS_OF_MESH) {
- if (plane_point_side_v3(plane_offset, v->co) > 0.0f) {
- BM_vert_kill(bm, v);
- }
- }
-
- result = BKE_mesh_from_bmesh_for_eval_nomain(bm, NULL);
- BM_mesh_free(bm);
-
- return result;
-}
-
-static Mesh *doMirrorOnAxis(MirrorModifierData *mmd,
- const ModifierEvalContext *UNUSED(ctx),
- Object *ob,
- const Mesh *mesh,
- int axis)
-{
- const float tolerance_sq = mmd->tolerance * mmd->tolerance;
- const bool do_vtargetmap = (mmd->flag & MOD_MIR_NO_MERGE) == 0;
- int tot_vtargetmap = 0; /* total merge vertices */
-
- const bool do_bisect = ((axis == 0 && mmd->flag & MOD_MIR_BISECT_AXIS_X) ||
- (axis == 1 && mmd->flag & MOD_MIR_BISECT_AXIS_Y) ||
- (axis == 2 && mmd->flag & MOD_MIR_BISECT_AXIS_Z));
-
- Mesh *result;
- MVert *mv, *mv_prev;
- MEdge *me;
- MLoop *ml;
- MPoly *mp;
- float mtx[4][4];
- float plane_co[3], plane_no[3];
- int i;
- int a, totshape;
- int *vtargetmap = NULL, *vtmap_a = NULL, *vtmap_b = NULL;
-
- /* mtx is the mirror transformation */
- unit_m4(mtx);
- mtx[axis][axis] = -1.0f;
-
- Object *mirror_ob = mmd->mirror_ob;
- if (mirror_ob != NULL) {
- float tmp[4][4];
- float itmp[4][4];
-
- /* tmp is a transform from coords relative to the object's own origin,
- * to coords relative to the mirror object origin */
- invert_m4_m4(tmp, mirror_ob->obmat);
- mul_m4_m4m4(tmp, tmp, ob->obmat);
-
- /* itmp is the reverse transform back to origin-relative coordinates */
- invert_m4_m4(itmp, tmp);
-
- /* combine matrices to get a single matrix that translates coordinates into
- * mirror-object-relative space, does the mirror, and translates back to
- * origin-relative space */
- mul_m4_series(mtx, itmp, mtx, tmp);
-
- if (do_bisect) {
- copy_v3_v3(plane_co, itmp[3]);
- copy_v3_v3(plane_no, itmp[axis]);
- }
- }
- else if (do_bisect) {
- copy_v3_v3(plane_co, mtx[3]);
- /* Need to negate here, since that axis is inverted (for mirror transform). */
- negate_v3_v3(plane_no, mtx[axis]);
- }
-
- Mesh *mesh_bisect = NULL;
- if (do_bisect) {
- mesh_bisect = doBiscetOnMirrorPlane(mmd, mesh, axis, plane_co, plane_no);
- mesh = mesh_bisect;
- }
-
- const int maxVerts = mesh->totvert;
- const int maxEdges = mesh->totedge;
- const int maxLoops = mesh->totloop;
- const int maxPolys = mesh->totpoly;
-
- result = BKE_mesh_new_nomain_from_template(
- mesh, maxVerts * 2, maxEdges * 2, 0, maxLoops * 2, maxPolys * 2);
-
- /*copy customdata to original geometry*/
- CustomData_copy_data(&mesh->vdata, &result->vdata, 0, 0, maxVerts);
- CustomData_copy_data(&mesh->edata, &result->edata, 0, 0, maxEdges);
- CustomData_copy_data(&mesh->ldata, &result->ldata, 0, 0, maxLoops);
- CustomData_copy_data(&mesh->pdata, &result->pdata, 0, 0, maxPolys);
-
- /* Subsurf for eg won't have mesh data in the custom data arrays.
- * now add mvert/medge/mpoly layers. */
- if (!CustomData_has_layer(&mesh->vdata, CD_MVERT)) {
- memcpy(result->mvert, mesh->mvert, sizeof(*result->mvert) * mesh->totvert);
- }
- if (!CustomData_has_layer(&mesh->edata, CD_MEDGE)) {
- memcpy(result->medge, mesh->medge, sizeof(*result->medge) * mesh->totedge);
- }
- if (!CustomData_has_layer(&mesh->pdata, CD_MPOLY)) {
- memcpy(result->mloop, mesh->mloop, sizeof(*result->mloop) * mesh->totloop);
- memcpy(result->mpoly, mesh->mpoly, sizeof(*result->mpoly) * mesh->totpoly);
- }
-
- /* copy customdata to new geometry,
- * copy from its self because this data may have been created in the checks above */
- CustomData_copy_data(&result->vdata, &result->vdata, 0, maxVerts, maxVerts);
- CustomData_copy_data(&result->edata, &result->edata, 0, maxEdges, maxEdges);
- /* loops are copied later */
- CustomData_copy_data(&result->pdata, &result->pdata, 0, maxPolys, maxPolys);
-
- if (do_vtargetmap) {
- /* second half is filled with -1 */
- vtargetmap = MEM_malloc_arrayN(maxVerts, 2 * sizeof(int), "MOD_mirror tarmap");
-
- vtmap_a = vtargetmap;
- vtmap_b = vtargetmap + maxVerts;
- }
-
- /* mirror vertex coordinates */
- mv_prev = result->mvert;
- mv = mv_prev + maxVerts;
- for (i = 0; i < maxVerts; i++, mv++, mv_prev++) {
- mul_m4_v3(mtx, mv->co);
-
- if (do_vtargetmap) {
- /* compare location of the original and mirrored vertex, to see if they
- * should be mapped for merging */
- if (UNLIKELY(len_squared_v3v3(mv_prev->co, mv->co) < tolerance_sq)) {
- *vtmap_a = maxVerts + i;
- tot_vtargetmap++;
-
- /* average location */
- mid_v3_v3v3(mv->co, mv_prev->co, mv->co);
- copy_v3_v3(mv_prev->co, mv->co);
- }
- else {
- *vtmap_a = -1;
- }
-
- *vtmap_b = -1; /* fill here to avoid 2x loops */
-
- vtmap_a++;
- vtmap_b++;
- }
- }
-
- /* handle shape keys */
- totshape = CustomData_number_of_layers(&result->vdata, CD_SHAPEKEY);
- for (a = 0; a < totshape; a++) {
- float(*cos)[3] = CustomData_get_layer_n(&result->vdata, CD_SHAPEKEY, a);
- for (i = maxVerts; i < result->totvert; i++) {
- mul_m4_v3(mtx, cos[i]);
- }
- }
-
- /* adjust mirrored edge vertex indices */
- me = result->medge + maxEdges;
- for (i = 0; i < maxEdges; i++, me++) {
- me->v1 += maxVerts;
- me->v2 += maxVerts;
- }
-
- /* adjust mirrored poly loopstart indices, and reverse loop order (normals) */
- mp = result->mpoly + maxPolys;
- ml = result->mloop;
- for (i = 0; i < maxPolys; i++, mp++) {
- MLoop *ml2;
- int j, e;
-
- /* reverse the loop, but we keep the first vertex in the face the same,
- * to ensure that quads are split the same way as on the other side */
- CustomData_copy_data(
- &result->ldata, &result->ldata, mp->loopstart, mp->loopstart + maxLoops, 1);
-
- for (j = 1; j < mp->totloop; j++) {
- CustomData_copy_data(&result->ldata,
- &result->ldata,
- mp->loopstart + j,
- mp->loopstart + maxLoops + mp->totloop - j,
- 1);
- }
-
- ml2 = ml + mp->loopstart + maxLoops;
- e = ml2[0].e;
- for (j = 0; j < mp->totloop - 1; j++) {
- ml2[j].e = ml2[j + 1].e;
- }
- ml2[mp->totloop - 1].e = e;
-
- mp->loopstart += maxLoops;
- }
-
- /* adjust mirrored loop vertex and edge indices */
- ml = result->mloop + maxLoops;
- for (i = 0; i < maxLoops; i++, ml++) {
- ml->v += maxVerts;
- ml->e += maxEdges;
- }
-
- /* handle uvs,
- * let tessface recalc handle updating the MTFace data */
- if (mmd->flag & (MOD_MIR_MIRROR_U | MOD_MIR_MIRROR_V) ||
- (is_zero_v2(mmd->uv_offset_copy) == false)) {
- const bool do_mirr_u = (mmd->flag & MOD_MIR_MIRROR_U) != 0;
- const bool do_mirr_v = (mmd->flag & MOD_MIR_MIRROR_V) != 0;
-
- const int totuv = CustomData_number_of_layers(&result->ldata, CD_MLOOPUV);
-
- for (a = 0; a < totuv; a++) {
- MLoopUV *dmloopuv = CustomData_get_layer_n(&result->ldata, CD_MLOOPUV, a);
- int j = maxLoops;
- dmloopuv += j; /* second set of loops only */
- for (; j-- > 0; dmloopuv++) {
- if (do_mirr_u) {
- dmloopuv->uv[0] = 1.0f - dmloopuv->uv[0] + mmd->uv_offset[0];
- }
- if (do_mirr_v) {
- dmloopuv->uv[1] = 1.0f - dmloopuv->uv[1] + mmd->uv_offset[1];
- }
- dmloopuv->uv[0] += mmd->uv_offset_copy[0];
- dmloopuv->uv[1] += mmd->uv_offset_copy[1];
- }
- }
- }
-
- /* handle custom split normals */
- if (ob->type == OB_MESH && (((Mesh *)ob->data)->flag & ME_AUTOSMOOTH) &&
- CustomData_has_layer(&result->ldata, CD_CUSTOMLOOPNORMAL)) {
- const int totloop = result->totloop;
- const int totpoly = result->totpoly;
- float(*loop_normals)[3] = MEM_calloc_arrayN((size_t)totloop, sizeof(*loop_normals), __func__);
- CustomData *ldata = &result->ldata;
- short(*clnors)[2] = CustomData_get_layer(ldata, CD_CUSTOMLOOPNORMAL);
- MLoopNorSpaceArray lnors_spacearr = {NULL};
- float(*poly_normals)[3] = MEM_mallocN(sizeof(*poly_normals) * totpoly, __func__);
-
- /* calculate custom normals into loop_normals, then mirror first half into second half */
-
- BKE_mesh_calc_normals_poly(result->mvert,
- NULL,
- result->totvert,
- result->mloop,
- result->mpoly,
- totloop,
- totpoly,
- poly_normals,
- false);
-
- BKE_mesh_normals_loop_split(result->mvert,
- result->totvert,
- result->medge,
- result->totedge,
- result->mloop,
- loop_normals,
- totloop,
- result->mpoly,
- poly_normals,
- totpoly,
- true,
- mesh->smoothresh,
- &lnors_spacearr,
- clnors,
- NULL);
-
- /* mirroring has to account for loops being reversed in polys in second half */
- mp = result->mpoly;
- for (i = 0; i < maxPolys; i++, mp++) {
- MPoly *mpmirror = result->mpoly + maxPolys + i;
- int j;
-
- for (j = mp->loopstart; j < mp->loopstart + mp->totloop; j++) {
- int mirrorj = mpmirror->loopstart;
- if (j > mp->loopstart) {
- mirrorj += mpmirror->totloop - (j - mp->loopstart);
- }
- copy_v3_v3(loop_normals[mirrorj], loop_normals[j]);
- loop_normals[mirrorj][axis] = -loop_normals[j][axis];
- BKE_lnor_space_custom_normal_to_data(
- lnors_spacearr.lspacearr[mirrorj], loop_normals[mirrorj], clnors[mirrorj]);
- }
- }
-
- MEM_freeN(poly_normals);
- MEM_freeN(loop_normals);
- BKE_lnor_spacearr_free(&lnors_spacearr);
- }
-
- /* handle vgroup stuff */
- if ((mmd->flag & MOD_MIR_VGROUP) && CustomData_has_layer(&result->vdata, CD_MDEFORMVERT)) {
- MDeformVert *dvert = (MDeformVert *)CustomData_get_layer(&result->vdata, CD_MDEFORMVERT) +
- maxVerts;
- int *flip_map = NULL, flip_map_len = 0;
-
- flip_map = defgroup_flip_map(ob, &flip_map_len, false);
-
- if (flip_map) {
- for (i = 0; i < maxVerts; dvert++, i++) {
- /* merged vertices get both groups, others get flipped */
- if (do_vtargetmap && (vtargetmap[i] != -1)) {
- defvert_flip_merged(dvert, flip_map, flip_map_len);
- }
- else {
- defvert_flip(dvert, flip_map, flip_map_len);
- }
- }
-
- MEM_freeN(flip_map);
- }
- }
-
- if (do_vtargetmap) {
- /* slow - so only call if one or more merge verts are found,
- * users may leave this on and not realize there is nothing to merge - campbell */
- if (tot_vtargetmap) {
- result = BKE_mesh_merge_verts(
- result, vtargetmap, tot_vtargetmap, MESH_MERGE_VERTS_DUMP_IF_MAPPED);
- }
- MEM_freeN(vtargetmap);
- }
-
- if (mesh_bisect != NULL) {
- BKE_id_free(NULL, mesh_bisect);
- }
-
- return result;
-}
-
static Mesh *mirrorModifier__doMirror(MirrorModifierData *mmd,
const ModifierEvalContext *ctx,
Object *ob,
@@ -445,11 +78,11 @@ static Mesh *mirrorModifier__doMirror(MirrorModifierData *mmd,
/* check which axes have been toggled and mirror accordingly */
if (mmd->flag & MOD_MIR_AXIS_X) {
- result = doMirrorOnAxis(mmd, ctx, ob, result, 0);
+ result = BKE_mirror_apply_mirror_on_axis(mmd, ctx, ob, result, 0);
}
if (mmd->flag & MOD_MIR_AXIS_Y) {
Mesh *tmp = result;
- result = doMirrorOnAxis(mmd, ctx, ob, result, 1);
+ result = BKE_mirror_apply_mirror_on_axis(mmd, ctx, ob, result, 1);
if (tmp != mesh) {
/* free intermediate results */
BKE_id_free(NULL, tmp);
@@ -457,7 +90,7 @@ static Mesh *mirrorModifier__doMirror(MirrorModifierData *mmd,
}
if (mmd->flag & MOD_MIR_AXIS_Z) {
Mesh *tmp = result;
- result = doMirrorOnAxis(mmd, ctx, ob, result, 2);
+ result = BKE_mirror_apply_mirror_on_axis(mmd, ctx, ob, result, 2);
if (tmp != mesh) {
/* free intermediate results */
BKE_id_free(NULL, tmp);
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-09 08:25:07 +0300