diff options
Diffstat (limited to 'source/blender/modifiers/intern/MOD_mirror.c')
-rw-r--r-- | source/blender/modifiers/intern/MOD_mirror.c | 748 |
1 files changed, 371 insertions, 377 deletions
diff --git a/source/blender/modifiers/intern/MOD_mirror.c b/source/blender/modifiers/intern/MOD_mirror.c index 5fb4c66471f..39b86ca48fd 100644 --- a/source/blender/modifiers/intern/MOD_mirror.c +++ b/source/blender/modifiers/intern/MOD_mirror.c @@ -21,7 +21,6 @@ * \ingroup modifiers */ - #include "BLI_math.h" #include "DNA_mesh_types.h" @@ -46,407 +45,402 @@ static void initData(ModifierData *md) { - MirrorModifierData *mmd = (MirrorModifierData *) md; + MirrorModifierData *mmd = (MirrorModifierData *)md; - mmd->flag |= (MOD_MIR_AXIS_X | MOD_MIR_VGROUP); - mmd->tolerance = 0.001; - mmd->mirror_ob = NULL; + mmd->flag |= (MOD_MIR_AXIS_X | MOD_MIR_VGROUP); + mmd->tolerance = 0.001; + mmd->mirror_ob = NULL; } -static void foreachObjectLink( - ModifierData *md, Object *ob, - ObjectWalkFunc walk, void *userData) +static void foreachObjectLink(ModifierData *md, Object *ob, ObjectWalkFunc walk, void *userData) { - MirrorModifierData *mmd = (MirrorModifierData *) md; + MirrorModifierData *mmd = (MirrorModifierData *)md; - walk(userData, ob, &mmd->mirror_ob, IDWALK_CB_NOP); + walk(userData, ob, &mmd->mirror_ob, IDWALK_CB_NOP); } static void updateDepsgraph(ModifierData *md, const ModifierUpdateDepsgraphContext *ctx) { - MirrorModifierData *mmd = (MirrorModifierData *)md; - if (mmd->mirror_ob != NULL) { - DEG_add_object_relation(ctx->node, mmd->mirror_ob, DEG_OB_COMP_TRANSFORM, "Mirror Modifier"); - DEG_add_modifier_to_transform_relation(ctx->node, "Mirror Modifier"); - } + MirrorModifierData *mmd = (MirrorModifierData *)md; + if (mmd->mirror_ob != NULL) { + DEG_add_object_relation(ctx->node, mmd->mirror_ob, DEG_OB_COMP_TRANSFORM, "Mirror Modifier"); + DEG_add_modifier_to_transform_relation(ctx->node, "Mirror Modifier"); + } } static Mesh *doBiscetOnMirrorPlane( - MirrorModifierData *mmd, - const Mesh *mesh, - int axis, - float plane_co[3], - float plane_no[3]) + 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; + 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) +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 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; + 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 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, Mesh *mesh) +static Mesh *mirrorModifier__doMirror(MirrorModifierData *mmd, + const ModifierEvalContext *ctx, + Object *ob, + Mesh *mesh) { - Mesh *result = mesh; - - /* check which axes have been toggled and mirror accordingly */ - if (mmd->flag & MOD_MIR_AXIS_X) { - result = doMirrorOnAxis(mmd, ctx, ob, result, 0); - } - if (mmd->flag & MOD_MIR_AXIS_Y) { - Mesh *tmp = result; - result = doMirrorOnAxis(mmd, ctx, ob, result, 1); - if (tmp != mesh) { - /* free intermediate results */ - BKE_id_free(NULL, tmp); - } - } - if (mmd->flag & MOD_MIR_AXIS_Z) { - Mesh *tmp = result; - result = doMirrorOnAxis(mmd, ctx, ob, result, 2); - if (tmp != mesh) { - /* free intermediate results */ - BKE_id_free(NULL, tmp); - } - } - - return result; + Mesh *result = mesh; + + /* check which axes have been toggled and mirror accordingly */ + if (mmd->flag & MOD_MIR_AXIS_X) { + result = doMirrorOnAxis(mmd, ctx, ob, result, 0); + } + if (mmd->flag & MOD_MIR_AXIS_Y) { + Mesh *tmp = result; + result = doMirrorOnAxis(mmd, ctx, ob, result, 1); + if (tmp != mesh) { + /* free intermediate results */ + BKE_id_free(NULL, tmp); + } + } + if (mmd->flag & MOD_MIR_AXIS_Z) { + Mesh *tmp = result; + result = doMirrorOnAxis(mmd, ctx, ob, result, 2); + if (tmp != mesh) { + /* free intermediate results */ + BKE_id_free(NULL, tmp); + } + } + + return result; } -static Mesh *applyModifier( - ModifierData *md, const ModifierEvalContext *ctx, - Mesh *mesh) +static Mesh *applyModifier(ModifierData *md, const ModifierEvalContext *ctx, Mesh *mesh) { - Mesh *result; - MirrorModifierData *mmd = (MirrorModifierData *) md; + Mesh *result; + MirrorModifierData *mmd = (MirrorModifierData *)md; - result = mirrorModifier__doMirror(mmd, ctx, ctx->object, mesh); + result = mirrorModifier__doMirror(mmd, ctx, ctx->object, mesh); - if (result != mesh) { - result->runtime.cd_dirty_vert |= CD_MASK_NORMAL; - } - return result; + if (result != mesh) { + result->runtime.cd_dirty_vert |= CD_MASK_NORMAL; + } + return result; } - ModifierTypeInfo modifierType_Mirror = { - /* name */ "Mirror", - /* structName */ "MirrorModifierData", - /* structSize */ sizeof(MirrorModifierData), - /* type */ eModifierTypeType_Constructive, - /* flags */ eModifierTypeFlag_AcceptsMesh | - eModifierTypeFlag_SupportsMapping | - eModifierTypeFlag_SupportsEditmode | - eModifierTypeFlag_EnableInEditmode | - eModifierTypeFlag_AcceptsCVs | - /* this is only the case when 'MOD_MIR_VGROUP' is used */ - eModifierTypeFlag_UsesPreview, - - /* copyData */ modifier_copyData_generic, - - /* deformVerts */ NULL, - /* deformMatrices */ NULL, - /* deformVertsEM */ NULL, - /* deformMatricesEM */ NULL, - /* applyModifier */ applyModifier, - - /* initData */ initData, - /* requiredDataMask */ NULL, - /* freeData */ NULL, - /* isDisabled */ NULL, - /* updateDepsgraph */ updateDepsgraph, - /* dependsOnTime */ NULL, - /* dependsOnNormals */ NULL, - /* foreachObjectLink */ foreachObjectLink, - /* foreachIDLink */ NULL, - /* foreachTexLink */ NULL, - /* freeRuntimeData */ NULL, + /* name */ "Mirror", + /* structName */ "MirrorModifierData", + /* structSize */ sizeof(MirrorModifierData), + /* type */ eModifierTypeType_Constructive, + /* flags */ eModifierTypeFlag_AcceptsMesh | eModifierTypeFlag_SupportsMapping | + eModifierTypeFlag_SupportsEditmode | eModifierTypeFlag_EnableInEditmode | + eModifierTypeFlag_AcceptsCVs | + /* this is only the case when 'MOD_MIR_VGROUP' is used */ + eModifierTypeFlag_UsesPreview, + + /* copyData */ modifier_copyData_generic, + + /* deformVerts */ NULL, + /* deformMatrices */ NULL, + /* deformVertsEM */ NULL, + /* deformMatricesEM */ NULL, + /* applyModifier */ applyModifier, + + /* initData */ initData, + /* requiredDataMask */ NULL, + /* freeData */ NULL, + /* isDisabled */ NULL, + /* updateDepsgraph */ updateDepsgraph, + /* dependsOnTime */ NULL, + /* dependsOnNormals */ NULL, + /* foreachObjectLink */ foreachObjectLink, + /* foreachIDLink */ NULL, + /* foreachTexLink */ NULL, + /* freeRuntimeData */ NULL, }; 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