/* SPDX-License-Identifier: GPL-2.0-or-later * Copyright 2001-2002 NaN Holding BV. All rights reserved. */ /** \file * \ingroup bke */ #include "MEM_guardedalloc.h" /* Allow using deprecated functionality for .blend file I/O. */ #define DNA_DEPRECATED_ALLOW #include "DNA_defaults.h" #include "DNA_key_types.h" #include "DNA_material_types.h" #include "DNA_mesh_types.h" #include "DNA_meshdata_types.h" #include "DNA_object_types.h" #include "BLI_bounds.hh" #include "BLI_edgehash.h" #include "BLI_endian_switch.h" #include "BLI_ghash.h" #include "BLI_hash.h" #include "BLI_implicit_sharing.hh" #include "BLI_index_range.hh" #include "BLI_linklist.h" #include "BLI_listbase.h" #include "BLI_math.h" #include "BLI_math_vector.hh" #include "BLI_memarena.h" #include "BLI_resource_scope.hh" #include "BLI_span.hh" #include "BLI_string.h" #include "BLI_task.hh" #include "BLI_utildefines.h" #include "BLI_vector.hh" #include "BLI_virtual_array.hh" #include "BLT_translation.h" #include "BKE_anim_data.h" #include "BKE_attribute.hh" #include "BKE_bpath.h" #include "BKE_deform.h" #include "BKE_editmesh.h" #include "BKE_global.h" #include "BKE_idtype.h" #include "BKE_key.h" #include "BKE_lib_id.h" #include "BKE_lib_query.h" #include "BKE_main.h" #include "BKE_material.h" #include "BKE_mesh.hh" #include "BKE_mesh_legacy_convert.h" #include "BKE_mesh_runtime.h" #include "BKE_mesh_wrapper.h" #include "BKE_modifier.h" #include "BKE_multires.h" #include "BKE_object.h" #include "PIL_time.h" #include "DEG_depsgraph.h" #include "DEG_depsgraph_query.h" #include "BLO_read_write.h" using blender::float3; using blender::MutableSpan; using blender::Span; using blender::StringRef; using blender::VArray; using blender::Vector; static void mesh_tessface_clear_intern(Mesh *mesh, int free_customdata); static void mesh_init_data(ID *id) { Mesh *mesh = (Mesh *)id; BLI_assert(MEMCMP_STRUCT_AFTER_IS_ZERO(mesh, id)); MEMCPY_STRUCT_AFTER(mesh, DNA_struct_default_get(Mesh), id); CustomData_reset(&mesh->vdata); CustomData_reset(&mesh->edata); CustomData_reset(&mesh->fdata); CustomData_reset(&mesh->pdata); CustomData_reset(&mesh->ldata); mesh->runtime = new blender::bke::MeshRuntime(); mesh->face_sets_color_seed = BLI_hash_int(PIL_check_seconds_timer_i() & UINT_MAX); } static void mesh_copy_data(Main *bmain, ID *id_dst, const ID *id_src, const int flag) { Mesh *mesh_dst = (Mesh *)id_dst; const Mesh *mesh_src = (const Mesh *)id_src; mesh_dst->runtime = new blender::bke::MeshRuntime(); mesh_dst->runtime->deformed_only = mesh_src->runtime->deformed_only; mesh_dst->runtime->wrapper_type = mesh_src->runtime->wrapper_type; mesh_dst->runtime->wrapper_type_finalize = mesh_src->runtime->wrapper_type_finalize; mesh_dst->runtime->subsurf_runtime_data = mesh_src->runtime->subsurf_runtime_data; mesh_dst->runtime->cd_mask_extra = mesh_src->runtime->cd_mask_extra; /* Copy face dot tags and edge tags, since meshes may be duplicated after a subsurf modifier or * node, but we still need to be able to draw face center vertices and "optimal edges" * differently. The tags may be cleared explicitly when the topology is changed. */ mesh_dst->runtime->subsurf_face_dot_tags = mesh_src->runtime->subsurf_face_dot_tags; mesh_dst->runtime->subsurf_optimal_display_edges = mesh_src->runtime->subsurf_optimal_display_edges; if ((mesh_src->id.tag & LIB_TAG_NO_MAIN) == 0) { /* This is a direct copy of a main mesh, so for now it has the same topology. */ mesh_dst->runtime->deformed_only = true; } /* This option is set for run-time meshes that have been copied from the current object's mode. * Currently this is used for edit-mesh although it could be used for sculpt or other * kinds of data specific to an object's mode. * * The flag signals that the mesh hasn't been modified from the data that generated it, * allowing us to use the object-mode data for drawing. * * While this could be the caller's responsibility, keep here since it's * highly unlikely we want to create a duplicate and not use it for drawing. */ mesh_dst->runtime->is_original_bmesh = false; /* Share various derived caches between the source and destination mesh for improved performance * when the source is persistent and edits to the destination mesh don't affect the caches. * Caches will be "un-shared" as necessary later on. */ mesh_dst->runtime->bounds_cache = mesh_src->runtime->bounds_cache; mesh_dst->runtime->loose_verts_cache = mesh_src->runtime->loose_verts_cache; mesh_dst->runtime->verts_no_face_cache = mesh_src->runtime->verts_no_face_cache; mesh_dst->runtime->loose_edges_cache = mesh_src->runtime->loose_edges_cache; mesh_dst->runtime->looptris_cache = mesh_src->runtime->looptris_cache; mesh_dst->runtime->looptri_polys_cache = mesh_src->runtime->looptri_polys_cache; /* Only do tessface if we have no polys. */ const bool do_tessface = ((mesh_src->totface != 0) && (mesh_src->totpoly == 0)); CustomData_MeshMasks mask = CD_MASK_MESH; if (mesh_src->id.tag & LIB_TAG_NO_MAIN) { /* For copies in depsgraph, keep data like #CD_ORIGINDEX and #CD_ORCO. */ CustomData_MeshMasks_update(&mask, &CD_MASK_DERIVEDMESH); } mesh_dst->mat = (Material **)MEM_dupallocN(mesh_src->mat); BKE_defgroup_copy_list(&mesh_dst->vertex_group_names, &mesh_src->vertex_group_names); mesh_dst->active_color_attribute = static_cast( MEM_dupallocN(mesh_src->active_color_attribute)); mesh_dst->default_color_attribute = static_cast( MEM_dupallocN(mesh_src->default_color_attribute)); CustomData_copy(&mesh_src->vdata, &mesh_dst->vdata, mask.vmask, mesh_dst->totvert); CustomData_copy(&mesh_src->edata, &mesh_dst->edata, mask.emask, mesh_dst->totedge); CustomData_copy(&mesh_src->ldata, &mesh_dst->ldata, mask.lmask, mesh_dst->totloop); CustomData_copy(&mesh_src->pdata, &mesh_dst->pdata, mask.pmask, mesh_dst->totpoly); blender::implicit_sharing::copy_shared_pointer(mesh_src->poly_offset_indices, mesh_src->runtime->poly_offsets_sharing_info, &mesh_dst->poly_offset_indices, &mesh_dst->runtime->poly_offsets_sharing_info); if (do_tessface) { CustomData_copy(&mesh_src->fdata, &mesh_dst->fdata, mask.fmask, mesh_dst->totface); } else { mesh_tessface_clear_intern(mesh_dst, false); } mesh_dst->edit_mesh = nullptr; mesh_dst->mselect = (MSelect *)MEM_dupallocN(mesh_dst->mselect); /* TODO: Do we want to add flag to prevent this? */ if (mesh_src->key && (flag & LIB_ID_COPY_SHAPEKEY)) { BKE_id_copy_ex(bmain, &mesh_src->key->id, (ID **)&mesh_dst->key, flag); /* XXX This is not nice, we need to make BKE_id_copy_ex fully re-entrant... */ mesh_dst->key->from = &mesh_dst->id; } } void BKE_mesh_free_editmesh(struct Mesh *mesh) { if (mesh->edit_mesh == nullptr) { return; } if (mesh->edit_mesh->is_shallow_copy == false) { BKE_editmesh_free_data(mesh->edit_mesh); } MEM_freeN(mesh->edit_mesh); mesh->edit_mesh = nullptr; } static void mesh_free_data(ID *id) { Mesh *mesh = (Mesh *)id; BKE_mesh_free_editmesh(mesh); BKE_mesh_clear_geometry_and_metadata(mesh); MEM_SAFE_FREE(mesh->mat); delete mesh->runtime; } static void mesh_foreach_id(ID *id, LibraryForeachIDData *data) { Mesh *mesh = (Mesh *)id; BKE_LIB_FOREACHID_PROCESS_IDSUPER(data, mesh->texcomesh, IDWALK_CB_NEVER_SELF); BKE_LIB_FOREACHID_PROCESS_IDSUPER(data, mesh->key, IDWALK_CB_USER); for (int i = 0; i < mesh->totcol; i++) { BKE_LIB_FOREACHID_PROCESS_IDSUPER(data, mesh->mat[i], IDWALK_CB_USER); } } static void mesh_foreach_path(ID *id, BPathForeachPathData *bpath_data) { Mesh *me = (Mesh *)id; if (me->ldata.external) { BKE_bpath_foreach_path_fixed_process(bpath_data, me->ldata.external->filepath); } } static void mesh_blend_write(BlendWriter *writer, ID *id, const void *id_address) { using namespace blender; Mesh *mesh = (Mesh *)id; const bool is_undo = BLO_write_is_undo(writer); Vector vert_layers; Vector edge_layers; Vector loop_layers; Vector poly_layers; blender::ResourceScope temp_arrays_for_legacy_format; /* cache only - don't write */ mesh->mface = nullptr; mesh->totface = 0; memset(&mesh->fdata, 0, sizeof(mesh->fdata)); /* Do not store actual geometry data in case this is a library override ID. */ if (ID_IS_OVERRIDE_LIBRARY(mesh) && !is_undo) { mesh->totvert = 0; memset(&mesh->vdata, 0, sizeof(mesh->vdata)); mesh->totedge = 0; memset(&mesh->edata, 0, sizeof(mesh->edata)); mesh->totloop = 0; memset(&mesh->ldata, 0, sizeof(mesh->ldata)); mesh->totpoly = 0; memset(&mesh->pdata, 0, sizeof(mesh->pdata)); mesh->poly_offset_indices = nullptr; } else { Set names_to_skip; if (!BLO_write_is_undo(writer)) { /* When converting to the old mesh format, don't save redundant attributes. */ names_to_skip.add_multiple_new({"position", ".edge_verts", ".corner_vert", ".corner_edge", ".hide_vert", ".hide_edge", ".hide_poly", ".uv_seam", ".select_vert", ".select_edge", ".select_poly", "material_index", "sharp_face", "sharp_edge"}); mesh->mvert = BKE_mesh_legacy_convert_positions_to_verts( mesh, temp_arrays_for_legacy_format, vert_layers); mesh->mloop = BKE_mesh_legacy_convert_corners_to_loops( mesh, temp_arrays_for_legacy_format, loop_layers); mesh->medge = BKE_mesh_legacy_convert_edges_to_medge( mesh, temp_arrays_for_legacy_format, edge_layers); MutableSpan legacy_polys = BKE_mesh_legacy_convert_offsets_to_polys( mesh, temp_arrays_for_legacy_format, poly_layers); BKE_mesh_legacy_convert_hide_layers_to_flags(mesh, legacy_polys); BKE_mesh_legacy_convert_selection_layers_to_flags(mesh, legacy_polys); BKE_mesh_legacy_convert_material_indices_to_mpoly(mesh, legacy_polys); BKE_mesh_legacy_sharp_faces_to_flags(mesh, legacy_polys); BKE_mesh_legacy_bevel_weight_from_layers(mesh); BKE_mesh_legacy_edge_crease_from_layers(mesh); BKE_mesh_legacy_sharp_edges_to_flags(mesh); BKE_mesh_legacy_uv_seam_to_flags(mesh); BKE_mesh_legacy_attribute_strings_to_flags(mesh); mesh->active_color_attribute = nullptr; mesh->default_color_attribute = nullptr; BKE_mesh_legacy_convert_loose_edges_to_flag(mesh); mesh->poly_offset_indices = nullptr; /* Set deprecated mesh data pointers for forward compatibility. */ mesh->mpoly = legacy_polys.data(); mesh->dvert = const_cast(mesh->deform_verts().data()); } CustomData_blend_write_prepare(mesh->vdata, vert_layers, names_to_skip); CustomData_blend_write_prepare(mesh->edata, edge_layers, names_to_skip); CustomData_blend_write_prepare(mesh->ldata, loop_layers, names_to_skip); CustomData_blend_write_prepare(mesh->pdata, poly_layers, names_to_skip); if (!BLO_write_is_undo(writer)) { /* #CustomData expects the layers to be sorted in increasing order based on type. */ std::stable_sort( poly_layers.begin(), poly_layers.end(), [](const CustomDataLayer &a, const CustomDataLayer &b) { return a.type < b.type; }); BKE_mesh_legacy_convert_uvs_to_struct(mesh, temp_arrays_for_legacy_format, loop_layers); BKE_mesh_legacy_face_set_from_generic(poly_layers); } } mesh->runtime = nullptr; BLO_write_id_struct(writer, Mesh, id_address, &mesh->id); BKE_id_blend_write(writer, &mesh->id); /* direct data */ if (mesh->adt) { BKE_animdata_blend_write(writer, mesh->adt); } BKE_defbase_blend_write(writer, &mesh->vertex_group_names); BLO_write_string(writer, mesh->active_color_attribute); BLO_write_string(writer, mesh->default_color_attribute); BLO_write_pointer_array(writer, mesh->totcol, mesh->mat); BLO_write_raw(writer, sizeof(MSelect) * mesh->totselect, mesh->mselect); CustomData_blend_write( writer, &mesh->vdata, vert_layers, mesh->totvert, CD_MASK_MESH.vmask, &mesh->id); CustomData_blend_write( writer, &mesh->edata, edge_layers, mesh->totedge, CD_MASK_MESH.emask, &mesh->id); /* fdata is really a dummy - written so slots align */ CustomData_blend_write(writer, &mesh->fdata, {}, mesh->totface, CD_MASK_MESH.fmask, &mesh->id); CustomData_blend_write( writer, &mesh->ldata, loop_layers, mesh->totloop, CD_MASK_MESH.lmask, &mesh->id); CustomData_blend_write( writer, &mesh->pdata, poly_layers, mesh->totpoly, CD_MASK_MESH.pmask, &mesh->id); if (mesh->poly_offset_indices) { BLO_write_int32_array(writer, mesh->totpoly + 1, mesh->poly_offset_indices); } } static void mesh_blend_read_data(BlendDataReader *reader, ID *id) { Mesh *mesh = (Mesh *)id; BLO_read_pointer_array(reader, (void **)&mesh->mat); /* Deprecated pointers to custom data layers are read here for backward compatibility * with files where these were owning pointers rather than a view into custom data. */ BLO_read_data_address(reader, &mesh->mvert); BLO_read_data_address(reader, &mesh->medge); BLO_read_data_address(reader, &mesh->mface); BLO_read_data_address(reader, &mesh->mtface); BLO_read_data_address(reader, &mesh->dvert); BLO_read_data_address(reader, &mesh->tface); BLO_read_data_address(reader, &mesh->mcol); BLO_read_data_address(reader, &mesh->mselect); /* animdata */ BLO_read_data_address(reader, &mesh->adt); BKE_animdata_blend_read_data(reader, mesh->adt); BLO_read_list(reader, &mesh->vertex_group_names); CustomData_blend_read(reader, &mesh->vdata, mesh->totvert); CustomData_blend_read(reader, &mesh->edata, mesh->totedge); CustomData_blend_read(reader, &mesh->fdata, mesh->totface); CustomData_blend_read(reader, &mesh->ldata, mesh->totloop); CustomData_blend_read(reader, &mesh->pdata, mesh->totpoly); if (mesh->deform_verts().is_empty()) { /* Vertex group data was also an owning pointer in old Blender versions. * Don't read them again if they were read as part of #CustomData. */ BKE_defvert_blend_read(reader, mesh->totvert, mesh->dvert); } BLO_read_data_address(reader, &mesh->active_color_attribute); BLO_read_data_address(reader, &mesh->default_color_attribute); mesh->texspace_flag &= ~ME_TEXSPACE_FLAG_AUTO_EVALUATED; mesh->edit_mesh = nullptr; mesh->runtime = new blender::bke::MeshRuntime(); if (mesh->poly_offset_indices) { BLO_read_int32_array(reader, mesh->totpoly + 1, &mesh->poly_offset_indices); mesh->runtime->poly_offsets_sharing_info = blender::implicit_sharing::info_for_mem_free( mesh->poly_offset_indices); } /* happens with old files */ if (mesh->mselect == nullptr) { mesh->totselect = 0; } if (BLO_read_requires_endian_switch(reader) && mesh->tface) { TFace *tf = mesh->tface; for (int i = 0; i < mesh->totface; i++, tf++) { BLI_endian_switch_uint32_array(tf->col, 4); } } } static void mesh_blend_read_lib(BlendLibReader *reader, ID *id) { Mesh *me = (Mesh *)id; /* this check added for python created meshes */ if (me->mat) { for (int i = 0; i < me->totcol; i++) { BLO_read_id_address(reader, me->id.lib, &me->mat[i]); } } else { me->totcol = 0; } BLO_read_id_address(reader, me->id.lib, &me->ipo); // XXX: deprecated: old anim sys BLO_read_id_address(reader, me->id.lib, &me->key); BLO_read_id_address(reader, me->id.lib, &me->texcomesh); } static void mesh_read_expand(BlendExpander *expander, ID *id) { Mesh *me = (Mesh *)id; for (int a = 0; a < me->totcol; a++) { BLO_expand(expander, me->mat[a]); } BLO_expand(expander, me->key); BLO_expand(expander, me->texcomesh); } IDTypeInfo IDType_ID_ME = { /*id_code*/ ID_ME, /*id_filter*/ FILTER_ID_ME, /*main_listbase_index*/ INDEX_ID_ME, /*struct_size*/ sizeof(Mesh), /*name*/ "Mesh", /*name_plural*/ "meshes", /*translation_context*/ BLT_I18NCONTEXT_ID_MESH, /*flags*/ IDTYPE_FLAGS_APPEND_IS_REUSABLE, /*asset_type_info*/ nullptr, /*init_data*/ mesh_init_data, /*copy_data*/ mesh_copy_data, /*free_data*/ mesh_free_data, /*make_local*/ nullptr, /*foreach_id*/ mesh_foreach_id, /*foreach_cache*/ nullptr, /*foreach_path*/ mesh_foreach_path, /*owner_pointer_get*/ nullptr, /*blend_write*/ mesh_blend_write, /*blend_read_data*/ mesh_blend_read_data, /*blend_read_lib*/ mesh_blend_read_lib, /*blend_read_expand*/ mesh_read_expand, /*blend_read_undo_preserve*/ nullptr, /*lib_override_apply_post*/ nullptr, }; enum { MESHCMP_DVERT_WEIGHTMISMATCH = 1, MESHCMP_DVERT_GROUPMISMATCH, MESHCMP_DVERT_TOTGROUPMISMATCH, MESHCMP_LOOPCOLMISMATCH, MESHCMP_LOOPUVMISMATCH, MESHCMP_LOOPMISMATCH, MESHCMP_POLYVERTMISMATCH, MESHCMP_POLYMISMATCH, MESHCMP_EDGEUNKNOWN, MESHCMP_VERTCOMISMATCH, MESHCMP_CDLAYERS_MISMATCH, MESHCMP_ATTRIBUTE_VALUE_MISMATCH, }; static const char *cmpcode_to_str(int code) { switch (code) { case MESHCMP_DVERT_WEIGHTMISMATCH: return "Vertex Weight Mismatch"; case MESHCMP_DVERT_GROUPMISMATCH: return "Vertex Group Mismatch"; case MESHCMP_DVERT_TOTGROUPMISMATCH: return "Vertex Doesn't Belong To Same Number Of Groups"; case MESHCMP_LOOPCOLMISMATCH: return "Color Attribute Mismatch"; case MESHCMP_LOOPUVMISMATCH: return "UV Mismatch"; case MESHCMP_LOOPMISMATCH: return "Loop Mismatch"; case MESHCMP_POLYVERTMISMATCH: return "Loop Vert Mismatch In Poly Test"; case MESHCMP_POLYMISMATCH: return "Loop Vert Mismatch"; case MESHCMP_EDGEUNKNOWN: return "Edge Mismatch"; case MESHCMP_VERTCOMISMATCH: return "Vertex Coordinate Mismatch"; case MESHCMP_CDLAYERS_MISMATCH: return "CustomData Layer Count Mismatch"; case MESHCMP_ATTRIBUTE_VALUE_MISMATCH: return "Attribute Value Mismatch"; default: return "Mesh Comparison Code Unknown"; } } static bool is_sublayer_name(char const *sublayer_name, char const *name) { BLI_assert(strlen(sublayer_name) == 2); if (name[1] != sublayer_name[0]) { return false; } if (name[2] != sublayer_name[1]) { return false; } if (name[3] != '.') { return false; } return true; } static bool is_uv_bool_sublayer(const CustomDataLayer &layer) { char const *name = layer.name; if (name[0] != '.') { return false; } return is_sublayer_name(UV_VERTSEL_NAME, name) || is_sublayer_name(UV_EDGESEL_NAME, name) || is_sublayer_name(UV_PINNED_NAME, name); } /** Thresh is threshold for comparing vertices, UVs, vertex colors, weights, etc. */ static int customdata_compare( CustomData *c1, CustomData *c2, const int total_length, Mesh *m1, const float thresh) { CustomDataLayer *l1, *l2; int layer_count1 = 0, layer_count2 = 0, j; const uint64_t cd_mask_non_generic = CD_MASK_MDEFORMVERT; const uint64_t cd_mask_all_attr = CD_MASK_PROP_ALL | cd_mask_non_generic; /* The uv selection / pin layers are ignored in the comparisons because * the original flags they replace were ignored as well. Because of the * lazy creation of these layers it would need careful handling of the * test files to compare these layers. For now it has been decided to * skip them. */ for (int i = 0; i < c1->totlayer; i++) { l1 = &c1->layers[i]; if ((CD_TYPE_AS_MASK(l1->type) & cd_mask_all_attr) && l1->anonymous_id == nullptr && !is_uv_bool_sublayer(*l1)) { layer_count1++; } } for (int i = 0; i < c2->totlayer; i++) { l2 = &c2->layers[i]; if ((CD_TYPE_AS_MASK(l2->type) & cd_mask_all_attr) && l2->anonymous_id == nullptr && !is_uv_bool_sublayer(*l2)) { layer_count2++; } } if (layer_count1 != layer_count2) { /* TODO(@HooglyBoogly): Re-enable after tests are updated for material index refactor and UV as * generic attribute refactor. */ // return MESHCMP_CDLAYERS_MISMATCH; } l1 = c1->layers; l2 = c2->layers; for (int i1 = 0; i1 < c1->totlayer; i1++) { l1 = c1->layers + i1; if (l1->anonymous_id != nullptr || is_uv_bool_sublayer(*l1)) { continue; } bool found_corresponding_layer = false; for (int i2 = 0; i2 < c2->totlayer; i2++) { l2 = c2->layers + i2; if (l1->type != l2->type || !STREQ(l1->name, l2->name) || l2->anonymous_id != nullptr) { continue; } /* At this point `l1` and `l2` have the same name and type, so they should be compared. */ found_corresponding_layer = true; if (StringRef(l1->name) == ".corner_edge") { /* TODO(Hans): This attribute wasn't tested before loops were refactored into separate * corner edges and corner verts attributes. Remove after updating tests. */ continue; } switch (l1->type) { case CD_PROP_INT32_2D: { blender::int2 *e1 = (blender::int2 *)l1->data; blender::int2 *e2 = (blender::int2 *)l2->data; if (StringRef(l1->name) == ".edge_verts") { int etot = m1->totedge; EdgeHash *eh = BLI_edgehash_new_ex(__func__, etot); for (j = 0; j < etot; j++, e1++) { BLI_edgehash_insert(eh, (*e1)[0], (*e1)[1], e1); } for (j = 0; j < etot; j++, e2++) { if (!BLI_edgehash_lookup(eh, (*e2)[0], (*e2)[1])) { return MESHCMP_EDGEUNKNOWN; } } BLI_edgehash_free(eh, nullptr); } else { for (j = 0; j < total_length; j++) { if (e1[j] != e2[j]) { return MESHCMP_ATTRIBUTE_VALUE_MISMATCH; } } } break; } case CD_PROP_BYTE_COLOR: { MLoopCol *lp1 = (MLoopCol *)l1->data; MLoopCol *lp2 = (MLoopCol *)l2->data; int ltot = m1->totloop; for (j = 0; j < ltot; j++, lp1++, lp2++) { if (lp1->r != lp2->r || lp1->g != lp2->g || lp1->b != lp2->b || lp1->a != lp2->a) { return MESHCMP_LOOPCOLMISMATCH; } } break; } case CD_MDEFORMVERT: { MDeformVert *dv1 = (MDeformVert *)l1->data; MDeformVert *dv2 = (MDeformVert *)l2->data; int dvtot = m1->totvert; for (j = 0; j < dvtot; j++, dv1++, dv2++) { int k; MDeformWeight *dw1 = dv1->dw, *dw2 = dv2->dw; if (dv1->totweight != dv2->totweight) { return MESHCMP_DVERT_TOTGROUPMISMATCH; } for (k = 0; k < dv1->totweight; k++, dw1++, dw2++) { if (dw1->def_nr != dw2->def_nr) { return MESHCMP_DVERT_GROUPMISMATCH; } if (fabsf(dw1->weight - dw2->weight) > thresh) { return MESHCMP_DVERT_WEIGHTMISMATCH; } } } break; } case CD_PROP_FLOAT: { const float *l1_data = (float *)l1->data; const float *l2_data = (float *)l2->data; for (int i = 0; i < total_length; i++) { if (compare_threshold_relative(l1_data[i], l2_data[i], thresh)) { return MESHCMP_ATTRIBUTE_VALUE_MISMATCH; } } break; } case CD_PROP_FLOAT2: { const float(*l1_data)[2] = (float(*)[2])l1->data; const float(*l2_data)[2] = (float(*)[2])l2->data; for (int i = 0; i < total_length; i++) { if (compare_threshold_relative(l1_data[i][0], l2_data[i][0], thresh)) { return MESHCMP_ATTRIBUTE_VALUE_MISMATCH; } if (compare_threshold_relative(l1_data[i][1], l2_data[i][1], thresh)) { return MESHCMP_ATTRIBUTE_VALUE_MISMATCH; } } break; } case CD_PROP_FLOAT3: { const float(*l1_data)[3] = (float(*)[3])l1->data; const float(*l2_data)[3] = (float(*)[3])l2->data; for (int i = 0; i < total_length; i++) { if (compare_threshold_relative(l1_data[i][0], l2_data[i][0], thresh)) { return MESHCMP_ATTRIBUTE_VALUE_MISMATCH; } if (compare_threshold_relative(l1_data[i][1], l2_data[i][1], thresh)) { return MESHCMP_ATTRIBUTE_VALUE_MISMATCH; } if (compare_threshold_relative(l1_data[i][2], l2_data[i][2], thresh)) { return MESHCMP_ATTRIBUTE_VALUE_MISMATCH; } } break; } case CD_PROP_INT32: { const int *l1_data = (int *)l1->data; const int *l2_data = (int *)l2->data; for (int i = 0; i < total_length; i++) { if (l1_data[i] != l2_data[i]) { return MESHCMP_ATTRIBUTE_VALUE_MISMATCH; } } break; } case CD_PROP_INT8: { const int8_t *l1_data = (int8_t *)l1->data; const int8_t *l2_data = (int8_t *)l2->data; for (int i = 0; i < total_length; i++) { if (l1_data[i] != l2_data[i]) { return MESHCMP_ATTRIBUTE_VALUE_MISMATCH; } } break; } case CD_PROP_BOOL: { const bool *l1_data = (bool *)l1->data; const bool *l2_data = (bool *)l2->data; for (int i = 0; i < total_length; i++) { if (l1_data[i] != l2_data[i]) { return MESHCMP_ATTRIBUTE_VALUE_MISMATCH; } } break; } case CD_PROP_COLOR: { const MPropCol *l1_data = (MPropCol *)l1->data; const MPropCol *l2_data = (MPropCol *)l2->data; for (int i = 0; i < total_length; i++) { for (j = 0; j < 4; j++) { if (compare_threshold_relative(l1_data[i].color[j], l2_data[i].color[j], thresh)) { return MESHCMP_ATTRIBUTE_VALUE_MISMATCH; } } } break; } default: { break; } } } if (!found_corresponding_layer) { if ((uint64_t(1) << l1->type) & CD_MASK_PROP_ALL) { return MESHCMP_CDLAYERS_MISMATCH; } } } return 0; } const char *BKE_mesh_cmp(Mesh *me1, Mesh *me2, float thresh) { int c; if (!me1 || !me2) { return "Requires two input meshes"; } if (me1->totvert != me2->totvert) { return "Number of verts don't match"; } if (me1->totedge != me2->totedge) { return "Number of edges don't match"; } if (me1->totpoly != me2->totpoly) { return "Number of faces don't match"; } if (me1->totloop != me2->totloop) { return "Number of loops don't match"; } if (!std::equal( me1->poly_offsets().begin(), me1->poly_offsets().end(), me2->poly_offsets().begin())) { return "Face sizes don't match"; } if ((c = customdata_compare(&me1->vdata, &me2->vdata, me1->totvert, me1, thresh))) { return cmpcode_to_str(c); } if ((c = customdata_compare(&me1->edata, &me2->edata, me1->totedge, me1, thresh))) { return cmpcode_to_str(c); } if ((c = customdata_compare(&me1->ldata, &me2->ldata, me1->totloop, me1, thresh))) { return cmpcode_to_str(c); } if ((c = customdata_compare(&me1->pdata, &me2->pdata, me1->totpoly, me1, thresh))) { return cmpcode_to_str(c); } return nullptr; } bool BKE_mesh_attribute_required(const char *name) { return ELEM(StringRef(name), "position", ".corner_vert", ".corner_edge", ".edge_verts"); } void BKE_mesh_ensure_skin_customdata(Mesh *me) { BMesh *bm = me->edit_mesh ? me->edit_mesh->bm : nullptr; MVertSkin *vs; if (bm) { if (!CustomData_has_layer(&bm->vdata, CD_MVERT_SKIN)) { BMVert *v; BMIter iter; BM_data_layer_add(bm, &bm->vdata, CD_MVERT_SKIN); /* Mark an arbitrary vertex as root */ BM_ITER_MESH (v, &iter, bm, BM_VERTS_OF_MESH) { vs = (MVertSkin *)CustomData_bmesh_get(&bm->vdata, v->head.data, CD_MVERT_SKIN); vs->flag |= MVERT_SKIN_ROOT; break; } } } else { if (!CustomData_has_layer(&me->vdata, CD_MVERT_SKIN)) { vs = (MVertSkin *)CustomData_add_layer( &me->vdata, CD_MVERT_SKIN, CD_SET_DEFAULT, me->totvert); /* Mark an arbitrary vertex as root */ if (vs) { vs->flag |= MVERT_SKIN_ROOT; } } } } bool BKE_mesh_ensure_facemap_customdata(struct Mesh *me) { BMesh *bm = me->edit_mesh ? me->edit_mesh->bm : nullptr; bool changed = false; if (bm) { if (!CustomData_has_layer(&bm->pdata, CD_FACEMAP)) { BM_data_layer_add(bm, &bm->pdata, CD_FACEMAP); changed = true; } } else { if (!CustomData_has_layer(&me->pdata, CD_FACEMAP)) { CustomData_add_layer(&me->pdata, CD_FACEMAP, CD_SET_DEFAULT, me->totpoly); changed = true; } } return changed; } bool BKE_mesh_clear_facemap_customdata(struct Mesh *me) { BMesh *bm = me->edit_mesh ? me->edit_mesh->bm : nullptr; bool changed = false; if (bm) { if (CustomData_has_layer(&bm->pdata, CD_FACEMAP)) { BM_data_layer_free(bm, &bm->pdata, CD_FACEMAP); changed = true; } } else { if (CustomData_has_layer(&me->pdata, CD_FACEMAP)) { CustomData_free_layers(&me->pdata, CD_FACEMAP, me->totpoly); changed = true; } } return changed; } bool BKE_mesh_has_custom_loop_normals(Mesh *me) { if (me->edit_mesh) { return CustomData_has_layer(&me->edit_mesh->bm->ldata, CD_CUSTOMLOOPNORMAL); } return CustomData_has_layer(&me->ldata, CD_CUSTOMLOOPNORMAL); } void BKE_mesh_free_data_for_undo(Mesh *me) { mesh_free_data(&me->id); } /** * \note on data that this function intentionally doesn't free: * * - Materials and shape keys are not freed here (#Mesh.mat & #Mesh.key). * As freeing shape keys requires tagging the depsgraph for updated relations, * which is expensive. * Material slots should be kept in sync with the object. * * - Edit-Mesh (#Mesh.edit_mesh) * Since edit-mesh is tied to the object's mode, which crashes when called in edit-mode. * See: #90972. */ static void mesh_clear_geometry(Mesh &mesh) { CustomData_free(&mesh.vdata, mesh.totvert); CustomData_free(&mesh.edata, mesh.totedge); CustomData_free(&mesh.fdata, mesh.totface); CustomData_free(&mesh.ldata, mesh.totloop); CustomData_free(&mesh.pdata, mesh.totpoly); if (mesh.poly_offset_indices) { blender::implicit_sharing::free_shared_data(&mesh.poly_offset_indices, &mesh.runtime->poly_offsets_sharing_info); } MEM_SAFE_FREE(mesh.mselect); mesh.totvert = 0; mesh.totedge = 0; mesh.totface = 0; mesh.totloop = 0; mesh.totpoly = 0; mesh.act_face = -1; mesh.totselect = 0; } static void clear_attribute_names(Mesh &mesh) { BLI_freelistN(&mesh.vertex_group_names); MEM_SAFE_FREE(mesh.active_color_attribute); MEM_SAFE_FREE(mesh.default_color_attribute); } void BKE_mesh_clear_geometry(Mesh *mesh) { BKE_mesh_runtime_clear_cache(mesh); mesh_clear_geometry(*mesh); } void BKE_mesh_clear_geometry_and_metadata(Mesh *mesh) { BKE_mesh_runtime_clear_cache(mesh); mesh_clear_geometry(*mesh); clear_attribute_names(*mesh); } static void mesh_tessface_clear_intern(Mesh *mesh, int free_customdata) { if (free_customdata) { CustomData_free(&mesh->fdata, mesh->totface); } else { CustomData_reset(&mesh->fdata); } mesh->totface = 0; } Mesh *BKE_mesh_add(Main *bmain, const char *name) { Mesh *me = (Mesh *)BKE_id_new(bmain, ID_ME, name); return me; } void BKE_mesh_poly_offsets_ensure_alloc(Mesh *mesh) { BLI_assert(mesh->poly_offset_indices == nullptr); BLI_assert(mesh->runtime->poly_offsets_sharing_info == nullptr); if (mesh->totpoly == 0) { return; } mesh->poly_offset_indices = static_cast( MEM_malloc_arrayN(mesh->totpoly + 1, sizeof(int), __func__)); mesh->runtime->poly_offsets_sharing_info = blender::implicit_sharing::info_for_mem_free( mesh->poly_offset_indices); #ifdef DEBUG /* Fill offsets with obviously bad values to simplify finding missing initialization. */ mesh->poly_offsets_for_write().fill(-1); #endif /* Set common values for convenience. */ mesh->poly_offset_indices[0] = 0; mesh->poly_offset_indices[mesh->totpoly] = mesh->totloop; } int *BKE_mesh_poly_offsets_for_write(Mesh *mesh) { blender::implicit_sharing::make_trivial_data_mutable( &mesh->poly_offset_indices, &mesh->runtime->poly_offsets_sharing_info, mesh->totpoly + 1); return mesh->poly_offset_indices; } static void mesh_ensure_cdlayers_primary(Mesh &mesh) { blender::bke::MutableAttributeAccessor attributes = mesh.attributes_for_write(); blender::bke::AttributeInitConstruct attribute_init; /* Try to create attributes if they do not exist. */ attributes.add("position", ATTR_DOMAIN_POINT, CD_PROP_FLOAT3, attribute_init); attributes.add(".edge_verts", ATTR_DOMAIN_EDGE, CD_PROP_INT32_2D, attribute_init); attributes.add(".corner_vert", ATTR_DOMAIN_CORNER, CD_PROP_INT32, attribute_init); attributes.add(".corner_edge", ATTR_DOMAIN_CORNER, CD_PROP_INT32, attribute_init); } Mesh *BKE_mesh_new_nomain(const int verts_num, const int edges_num, const int polys_num, const int loops_num) { Mesh *mesh = static_cast(BKE_libblock_alloc( nullptr, ID_ME, BKE_idtype_idcode_to_name(ID_ME), LIB_ID_CREATE_LOCALIZE)); BKE_libblock_init_empty(&mesh->id); mesh->totvert = verts_num; mesh->totedge = edges_num; mesh->totpoly = polys_num; mesh->totloop = loops_num; mesh_ensure_cdlayers_primary(*mesh); BKE_mesh_poly_offsets_ensure_alloc(mesh); return mesh; } static void copy_attribute_names(const Mesh &mesh_src, Mesh &mesh_dst) { if (mesh_src.active_color_attribute) { MEM_SAFE_FREE(mesh_dst.active_color_attribute); mesh_dst.active_color_attribute = BLI_strdup(mesh_src.active_color_attribute); } if (mesh_src.default_color_attribute) { MEM_SAFE_FREE(mesh_dst.default_color_attribute); mesh_dst.default_color_attribute = BLI_strdup(mesh_src.default_color_attribute); } } void BKE_mesh_copy_parameters(Mesh *me_dst, const Mesh *me_src) { /* Copy general settings. */ me_dst->editflag = me_src->editflag; me_dst->flag = me_src->flag; me_dst->smoothresh = me_src->smoothresh; me_dst->remesh_voxel_size = me_src->remesh_voxel_size; me_dst->remesh_voxel_adaptivity = me_src->remesh_voxel_adaptivity; me_dst->remesh_mode = me_src->remesh_mode; me_dst->symmetry = me_src->symmetry; me_dst->face_sets_color_seed = me_src->face_sets_color_seed; me_dst->face_sets_color_default = me_src->face_sets_color_default; /* Copy texture space. */ me_dst->texspace_flag = me_src->texspace_flag; copy_v3_v3(me_dst->texspace_location, me_src->texspace_location); copy_v3_v3(me_dst->texspace_size, me_src->texspace_size); me_dst->vertex_group_active_index = me_src->vertex_group_active_index; me_dst->attributes_active_index = me_src->attributes_active_index; } void BKE_mesh_copy_parameters_for_eval(Mesh *me_dst, const Mesh *me_src) { /* User counts aren't handled, don't copy into a mesh from #G_MAIN. */ BLI_assert(me_dst->id.tag & (LIB_TAG_NO_MAIN | LIB_TAG_COPIED_ON_WRITE)); BKE_mesh_copy_parameters(me_dst, me_src); copy_attribute_names(*me_src, *me_dst); /* Copy vertex group names. */ BLI_assert(BLI_listbase_is_empty(&me_dst->vertex_group_names)); BKE_defgroup_copy_list(&me_dst->vertex_group_names, &me_src->vertex_group_names); /* Copy materials. */ if (me_dst->mat != nullptr) { MEM_freeN(me_dst->mat); } me_dst->mat = (Material **)MEM_dupallocN(me_src->mat); me_dst->totcol = me_src->totcol; } Mesh *BKE_mesh_new_nomain_from_template_ex(const Mesh *me_src, const int verts_num, const int edges_num, const int tessface_num, const int polys_num, const int loops_num, const CustomData_MeshMasks mask) { /* Only do tessface if we are creating tessfaces or copying from mesh with only tessfaces. */ const bool do_tessface = (tessface_num || ((me_src->totface != 0) && (me_src->totpoly == 0))); Mesh *me_dst = (Mesh *)BKE_id_new_nomain(ID_ME, nullptr); me_dst->mselect = (MSelect *)MEM_dupallocN(me_src->mselect); me_dst->totvert = verts_num; me_dst->totedge = edges_num; me_dst->totpoly = polys_num; me_dst->totloop = loops_num; me_dst->totface = tessface_num; BKE_mesh_copy_parameters_for_eval(me_dst, me_src); CustomData_copy_layout(&me_src->vdata, &me_dst->vdata, mask.vmask, CD_SET_DEFAULT, verts_num); CustomData_copy_layout(&me_src->edata, &me_dst->edata, mask.emask, CD_SET_DEFAULT, edges_num); CustomData_copy_layout(&me_src->pdata, &me_dst->pdata, mask.pmask, CD_SET_DEFAULT, polys_num); CustomData_copy_layout(&me_src->ldata, &me_dst->ldata, mask.lmask, CD_SET_DEFAULT, loops_num); if (do_tessface) { CustomData_copy_layout( &me_src->fdata, &me_dst->fdata, mask.fmask, CD_SET_DEFAULT, tessface_num); } else { mesh_tessface_clear_intern(me_dst, false); } /* The destination mesh should at least have valid primary CD layers, * even in cases where the source mesh does not. */ mesh_ensure_cdlayers_primary(*me_dst); BKE_mesh_poly_offsets_ensure_alloc(me_dst); if (do_tessface && !CustomData_get_layer(&me_dst->fdata, CD_MFACE)) { CustomData_add_layer(&me_dst->fdata, CD_MFACE, CD_SET_DEFAULT, me_dst->totface); } /* Expect that normals aren't copied at all, since the destination mesh is new. */ BLI_assert(BKE_mesh_vert_normals_are_dirty(me_dst)); return me_dst; } Mesh *BKE_mesh_new_nomain_from_template(const Mesh *me_src, const int verts_num, const int edges_num, const int polys_num, const int loops_num) { return BKE_mesh_new_nomain_from_template_ex( me_src, verts_num, edges_num, 0, polys_num, loops_num, CD_MASK_EVERYTHING); } void BKE_mesh_eval_delete(struct Mesh *mesh_eval) { /* Evaluated mesh may point to edit mesh, but never owns it. */ mesh_eval->edit_mesh = nullptr; mesh_free_data(&mesh_eval->id); BKE_libblock_free_data(&mesh_eval->id, false); MEM_freeN(mesh_eval); } Mesh *BKE_mesh_copy_for_eval(const Mesh *source) { return reinterpret_cast( BKE_id_copy_ex(nullptr, &source->id, nullptr, LIB_ID_COPY_LOCALIZE)); } BMesh *BKE_mesh_to_bmesh_ex(const Mesh *me, const struct BMeshCreateParams *create_params, const struct BMeshFromMeshParams *convert_params) { const BMAllocTemplate allocsize = BMALLOC_TEMPLATE_FROM_ME(me); BMesh *bm = BM_mesh_create(&allocsize, create_params); BM_mesh_bm_from_me(bm, me, convert_params); return bm; } BMesh *BKE_mesh_to_bmesh(Mesh *me, Object *ob, const bool add_key_index, const struct BMeshCreateParams *params) { BMeshFromMeshParams bmesh_from_mesh_params{}; bmesh_from_mesh_params.calc_face_normal = false; bmesh_from_mesh_params.calc_vert_normal = false; bmesh_from_mesh_params.add_key_index = add_key_index; bmesh_from_mesh_params.use_shapekey = true; bmesh_from_mesh_params.active_shapekey = ob->shapenr; return BKE_mesh_to_bmesh_ex(me, params, &bmesh_from_mesh_params); } Mesh *BKE_mesh_from_bmesh_nomain(BMesh *bm, const struct BMeshToMeshParams *params, const Mesh *me_settings) { BLI_assert(params->calc_object_remap == false); Mesh *mesh = (Mesh *)BKE_id_new_nomain(ID_ME, nullptr); BM_mesh_bm_to_me(nullptr, bm, mesh, params); BKE_mesh_copy_parameters_for_eval(mesh, me_settings); return mesh; } Mesh *BKE_mesh_from_bmesh_for_eval_nomain(BMesh *bm, const CustomData_MeshMasks *cd_mask_extra, const Mesh *me_settings) { Mesh *mesh = (Mesh *)BKE_id_new_nomain(ID_ME, nullptr); BM_mesh_bm_to_me_for_eval(bm, mesh, cd_mask_extra); BKE_mesh_copy_parameters_for_eval(mesh, me_settings); return mesh; } static void ensure_orig_index_layer(CustomData &data, const int size) { if (CustomData_has_layer(&data, CD_ORIGINDEX)) { return; } int *indices = (int *)CustomData_add_layer(&data, CD_ORIGINDEX, CD_SET_DEFAULT, size); range_vn_i(indices, size, 0); } void BKE_mesh_ensure_default_orig_index_customdata(Mesh *mesh) { BLI_assert(mesh->runtime->wrapper_type == ME_WRAPPER_TYPE_MDATA); BKE_mesh_ensure_default_orig_index_customdata_no_check(mesh); } void BKE_mesh_ensure_default_orig_index_customdata_no_check(Mesh *mesh) { ensure_orig_index_layer(mesh->vdata, mesh->totvert); ensure_orig_index_layer(mesh->edata, mesh->totedge); ensure_orig_index_layer(mesh->pdata, mesh->totpoly); } BoundBox *BKE_mesh_boundbox_get(Object *ob) { /* This is Object-level data access, * DO NOT touch to Mesh's bb, would be totally thread-unsafe. */ if (ob->runtime.bb == nullptr || ob->runtime.bb->flag & BOUNDBOX_DIRTY) { Mesh *me = (Mesh *)ob->data; float min[3], max[3]; INIT_MINMAX(min, max); if (!BKE_mesh_wrapper_minmax(me, min, max)) { min[0] = min[1] = min[2] = -1.0f; max[0] = max[1] = max[2] = 1.0f; } if (ob->runtime.bb == nullptr) { ob->runtime.bb = (BoundBox *)MEM_mallocN(sizeof(*ob->runtime.bb), __func__); } BKE_boundbox_init_from_minmax(ob->runtime.bb, min, max); ob->runtime.bb->flag &= ~BOUNDBOX_DIRTY; } return ob->runtime.bb; } void BKE_mesh_texspace_calc(Mesh *me) { if (me->texspace_flag & ME_TEXSPACE_FLAG_AUTO) { float min[3], max[3]; INIT_MINMAX(min, max); if (!BKE_mesh_wrapper_minmax(me, min, max)) { min[0] = min[1] = min[2] = -1.0f; max[0] = max[1] = max[2] = 1.0f; } float texspace_location[3], texspace_size[3]; mid_v3_v3v3(texspace_location, min, max); texspace_size[0] = (max[0] - min[0]) / 2.0f; texspace_size[1] = (max[1] - min[1]) / 2.0f; texspace_size[2] = (max[2] - min[2]) / 2.0f; for (int a = 0; a < 3; a++) { if (texspace_size[a] == 0.0f) { texspace_size[a] = 1.0f; } else if (texspace_size[a] > 0.0f && texspace_size[a] < 0.00001f) { texspace_size[a] = 0.00001f; } else if (texspace_size[a] < 0.0f && texspace_size[a] > -0.00001f) { texspace_size[a] = -0.00001f; } } copy_v3_v3(me->texspace_location, texspace_location); copy_v3_v3(me->texspace_size, texspace_size); me->texspace_flag |= ME_TEXSPACE_FLAG_AUTO_EVALUATED; } } void BKE_mesh_texspace_ensure(Mesh *me) { if ((me->texspace_flag & ME_TEXSPACE_FLAG_AUTO) && !(me->texspace_flag & ME_TEXSPACE_FLAG_AUTO_EVALUATED)) { BKE_mesh_texspace_calc(me); } } void BKE_mesh_texspace_get(Mesh *me, float r_texspace_location[3], float r_texspace_size[3]) { BKE_mesh_texspace_ensure(me); if (r_texspace_location) { copy_v3_v3(r_texspace_location, me->texspace_location); } if (r_texspace_size) { copy_v3_v3(r_texspace_size, me->texspace_size); } } void BKE_mesh_texspace_get_reference(Mesh *me, char **r_texspace_flag, float **r_texspace_location, float **r_texspace_size) { BKE_mesh_texspace_ensure(me); if (r_texspace_flag != nullptr) { *r_texspace_flag = &me->texspace_flag; } if (r_texspace_location != nullptr) { *r_texspace_location = me->texspace_location; } if (r_texspace_size != nullptr) { *r_texspace_size = me->texspace_size; } } void BKE_mesh_texspace_copy_from_object(Mesh *me, Object *ob) { float *texspace_location, *texspace_size; char *texspace_flag; if (BKE_object_obdata_texspace_get(ob, &texspace_flag, &texspace_location, &texspace_size)) { me->texspace_flag = *texspace_flag; copy_v3_v3(me->texspace_location, texspace_location); copy_v3_v3(me->texspace_size, texspace_size); } } float (*BKE_mesh_orco_verts_get(Object *ob))[3] { Mesh *me = (Mesh *)ob->data; Mesh *tme = me->texcomesh ? me->texcomesh : me; /* Get appropriate vertex coordinates */ float(*vcos)[3] = (float(*)[3])MEM_calloc_arrayN(me->totvert, sizeof(*vcos), "orco mesh"); const Span positions = tme->vert_positions(); int totvert = min_ii(tme->totvert, me->totvert); for (int a = 0; a < totvert; a++) { copy_v3_v3(vcos[a], positions[a]); } return vcos; } void BKE_mesh_orco_verts_transform(Mesh *me, float (*orco)[3], int totvert, int invert) { float texspace_location[3], texspace_size[3]; BKE_mesh_texspace_get(me->texcomesh ? me->texcomesh : me, texspace_location, texspace_size); if (invert) { for (int a = 0; a < totvert; a++) { float *co = orco[a]; madd_v3_v3v3v3(co, texspace_location, co, texspace_size); } } else { for (int a = 0; a < totvert; a++) { float *co = orco[a]; co[0] = (co[0] - texspace_location[0]) / texspace_size[0]; co[1] = (co[1] - texspace_location[1]) / texspace_size[1]; co[2] = (co[2] - texspace_location[2]) / texspace_size[2]; } } } void BKE_mesh_orco_ensure(Object *ob, Mesh *mesh) { if (CustomData_has_layer(&mesh->vdata, CD_ORCO)) { return; } /* Orcos are stored in normalized 0..1 range by convention. */ float(*orcodata)[3] = BKE_mesh_orco_verts_get(ob); BKE_mesh_orco_verts_transform(mesh, orcodata, mesh->totvert, false); CustomData_add_layer_with_data(&mesh->vdata, CD_ORCO, orcodata, mesh->totvert, nullptr); } Mesh *BKE_mesh_from_object(Object *ob) { if (ob == nullptr) { return nullptr; } if (ob->type == OB_MESH) { return (Mesh *)ob->data; } return nullptr; } void BKE_mesh_assign_object(Main *bmain, Object *ob, Mesh *me) { Mesh *old = nullptr; if (ob == nullptr) { return; } multires_force_sculpt_rebuild(ob); if (ob->type == OB_MESH) { old = (Mesh *)ob->data; if (old) { id_us_min(&old->id); } ob->data = me; id_us_plus((ID *)me); } BKE_object_materials_test(bmain, ob, (ID *)me); BKE_modifiers_test_object(ob); } void BKE_mesh_material_index_remove(Mesh *me, short index) { using namespace blender; using namespace blender::bke; MutableAttributeAccessor attributes = me->attributes_for_write(); AttributeWriter material_indices = attributes.lookup_for_write("material_index"); if (!material_indices) { return; } if (material_indices.domain != ATTR_DOMAIN_FACE) { BLI_assert_unreachable(); return; } MutableVArraySpan indices_span(material_indices.varray); for (const int i : indices_span.index_range()) { if (indices_span[i] > 0 && indices_span[i] >= index) { indices_span[i]--; } } indices_span.save(); material_indices.finish(); BKE_mesh_tessface_clear(me); } bool BKE_mesh_material_index_used(Mesh *me, short index) { using namespace blender; using namespace blender::bke; const AttributeAccessor attributes = me->attributes(); const VArray material_indices = *attributes.lookup_or_default( "material_index", ATTR_DOMAIN_FACE, 0); if (material_indices.is_single()) { return material_indices.get_internal_single() == index; } const VArraySpan indices_span(material_indices); return indices_span.contains(index); } void BKE_mesh_material_index_clear(Mesh *me) { using namespace blender; using namespace blender::bke; MutableAttributeAccessor attributes = me->attributes_for_write(); attributes.remove("material_index"); BKE_mesh_tessface_clear(me); } void BKE_mesh_material_remap(Mesh *me, const uint *remap, uint remap_len) { using namespace blender; using namespace blender::bke; const short remap_len_short = short(remap_len); #define MAT_NR_REMAP(n) \ if (n < remap_len_short) { \ BLI_assert(n >= 0 && remap[n] < remap_len_short); \ n = remap[n]; \ } \ ((void)0) if (me->edit_mesh) { BMEditMesh *em = me->edit_mesh; BMIter iter; BMFace *efa; BM_ITER_MESH (efa, &iter, em->bm, BM_FACES_OF_MESH) { MAT_NR_REMAP(efa->mat_nr); } } else { MutableAttributeAccessor attributes = me->attributes_for_write(); SpanAttributeWriter material_indices = attributes.lookup_or_add_for_write_span( "material_index", ATTR_DOMAIN_FACE); if (!material_indices) { return; } for (const int i : material_indices.span.index_range()) { MAT_NR_REMAP(material_indices.span[i]); } material_indices.span.save(); material_indices.finish(); } #undef MAT_NR_REMAP } void BKE_mesh_smooth_flag_set(Mesh *me, const bool use_smooth) { using namespace blender; using namespace blender::bke; MutableAttributeAccessor attributes = me->attributes_for_write(); if (use_smooth) { attributes.remove("sharp_face"); } else { SpanAttributeWriter sharp_faces = attributes.lookup_or_add_for_write_only_span( "sharp_face", ATTR_DOMAIN_FACE); sharp_faces.span.fill(true); sharp_faces.finish(); } } void BKE_mesh_auto_smooth_flag_set(Mesh *me, const bool use_auto_smooth, const float auto_smooth_angle) { if (use_auto_smooth) { me->flag |= ME_AUTOSMOOTH; me->smoothresh = auto_smooth_angle; } else { me->flag &= ~ME_AUTOSMOOTH; } } void BKE_mesh_looptri_get_real_edges(const blender::int2 *edges, const int *corner_verts, const int *corner_edges, const MLoopTri *tri, int r_edges[3]) { for (int i = 2, i_next = 0; i_next < 3; i = i_next++) { const int corner_1 = tri->tri[i]; const int corner_2 = tri->tri[i_next]; const int vert_1 = corner_verts[corner_1]; const int vert_2 = corner_verts[corner_2]; const int edge_i = corner_edges[corner_1]; const blender::int2 &edge = edges[edge_i]; bool is_real = (vert_1 == edge[0] && vert_2 == edge[1]) || (vert_1 == edge[1] && vert_2 == edge[0]); r_edges[i] = is_real ? edge_i : -1; } } bool BKE_mesh_minmax(const Mesh *me, float r_min[3], float r_max[3]) { using namespace blender; if (me->totvert == 0) { return false; } me->runtime->bounds_cache.ensure( [me](Bounds &r_bounds) { r_bounds = *bounds::min_max(me->vert_positions()); }); const Bounds &bounds = me->runtime->bounds_cache.data(); copy_v3_v3(r_min, math::min(bounds.min, float3(r_min))); copy_v3_v3(r_max, math::max(bounds.max, float3(r_max))); return true; } void Mesh::bounds_set_eager(const blender::Bounds &bounds) { this->runtime->bounds_cache.ensure([&](blender::Bounds &r_data) { r_data = bounds; }); } void BKE_mesh_transform(Mesh *me, const float mat[4][4], bool do_keys) { MutableSpan positions = me->vert_positions_for_write(); for (float3 &position : positions) { mul_m4_v3(mat, position); } if (do_keys && me->key) { LISTBASE_FOREACH (KeyBlock *, kb, &me->key->block) { float *fp = (float *)kb->data; for (int i = kb->totelem; i--; fp += 3) { mul_m4_v3(mat, fp); } } } /* don't update normals, caller can do this explicitly. * We do update loop normals though, those may not be auto-generated * (see e.g. STL import script)! */ float(*lnors)[3] = (float(*)[3])CustomData_get_layer_for_write( &me->ldata, CD_NORMAL, me->totloop); if (lnors) { float m3[3][3]; copy_m3_m4(m3, mat); normalize_m3(m3); for (int i = 0; i < me->totloop; i++, lnors++) { mul_m3_v3(m3, *lnors); } } BKE_mesh_tag_positions_changed(me); } static void translate_positions(MutableSpan positions, const float3 &translation) { using namespace blender; threading::parallel_for(positions.index_range(), 2048, [&](const IndexRange range) { for (float3 &position : positions.slice(range)) { position += translation; } }); } void BKE_mesh_translate(Mesh *mesh, const float offset[3], const bool do_keys) { using namespace blender; if (math::is_zero(float3(offset))) { return; } std::optional> bounds; if (mesh->runtime->bounds_cache.is_cached()) { bounds = mesh->runtime->bounds_cache.data(); } translate_positions(mesh->vert_positions_for_write(), offset); if (do_keys && mesh->key) { LISTBASE_FOREACH (KeyBlock *, kb, &mesh->key->block) { translate_positions({static_cast(kb->data), kb->totelem}, offset); } } BKE_mesh_tag_positions_changed_uniformly(mesh); if (bounds) { bounds->min += offset; bounds->max += offset; mesh->bounds_set_eager(*bounds); } } void BKE_mesh_tessface_clear(Mesh *mesh) { mesh_tessface_clear_intern(mesh, true); } /* -------------------------------------------------------------------- */ /* MSelect functions (currently used in weight paint mode) */ void BKE_mesh_mselect_clear(Mesh *me) { MEM_SAFE_FREE(me->mselect); me->totselect = 0; } void BKE_mesh_mselect_validate(Mesh *me) { using namespace blender; using namespace blender::bke; MSelect *mselect_src, *mselect_dst; int i_src, i_dst; if (me->totselect == 0) { return; } mselect_src = me->mselect; mselect_dst = (MSelect *)MEM_malloc_arrayN( (me->totselect), sizeof(MSelect), "Mesh selection history"); const AttributeAccessor attributes = me->attributes(); const VArray select_vert = *attributes.lookup_or_default( ".select_vert", ATTR_DOMAIN_POINT, false); const VArray select_edge = *attributes.lookup_or_default( ".select_edge", ATTR_DOMAIN_EDGE, false); const VArray select_poly = *attributes.lookup_or_default( ".select_poly", ATTR_DOMAIN_FACE, false); for (i_src = 0, i_dst = 0; i_src < me->totselect; i_src++) { int index = mselect_src[i_src].index; switch (mselect_src[i_src].type) { case ME_VSEL: { if (select_vert[index]) { mselect_dst[i_dst] = mselect_src[i_src]; i_dst++; } break; } case ME_ESEL: { if (select_edge[index]) { mselect_dst[i_dst] = mselect_src[i_src]; i_dst++; } break; } case ME_FSEL: { if (select_poly[index]) { mselect_dst[i_dst] = mselect_src[i_src]; i_dst++; } break; } default: { BLI_assert_unreachable(); break; } } } MEM_freeN(mselect_src); if (i_dst == 0) { MEM_freeN(mselect_dst); mselect_dst = nullptr; } else if (i_dst != me->totselect) { mselect_dst = (MSelect *)MEM_reallocN(mselect_dst, sizeof(MSelect) * i_dst); } me->totselect = i_dst; me->mselect = mselect_dst; } int BKE_mesh_mselect_find(Mesh *me, int index, int type) { BLI_assert(ELEM(type, ME_VSEL, ME_ESEL, ME_FSEL)); for (int i = 0; i < me->totselect; i++) { if ((me->mselect[i].index == index) && (me->mselect[i].type == type)) { return i; } } return -1; } int BKE_mesh_mselect_active_get(Mesh *me, int type) { BLI_assert(ELEM(type, ME_VSEL, ME_ESEL, ME_FSEL)); if (me->totselect) { if (me->mselect[me->totselect - 1].type == type) { return me->mselect[me->totselect - 1].index; } } return -1; } void BKE_mesh_mselect_active_set(Mesh *me, int index, int type) { const int msel_index = BKE_mesh_mselect_find(me, index, type); if (msel_index == -1) { /* add to the end */ me->mselect = (MSelect *)MEM_reallocN(me->mselect, sizeof(MSelect) * (me->totselect + 1)); me->mselect[me->totselect].index = index; me->mselect[me->totselect].type = type; me->totselect++; } else if (msel_index != me->totselect - 1) { /* move to the end */ std::swap(me->mselect[msel_index], me->mselect[me->totselect - 1]); } BLI_assert((me->mselect[me->totselect - 1].index == index) && (me->mselect[me->totselect - 1].type == type)); } void BKE_mesh_count_selected_items(const Mesh *mesh, int r_count[3]) { r_count[0] = r_count[1] = r_count[2] = 0; if (mesh->edit_mesh) { BMesh *bm = mesh->edit_mesh->bm; r_count[0] = bm->totvertsel; r_count[1] = bm->totedgesel; r_count[2] = bm->totfacesel; } /* We could support faces in paint modes. */ } void BKE_mesh_vert_coords_get(const Mesh *mesh, float (*vert_coords)[3]) { blender::bke::AttributeAccessor attributes = mesh->attributes(); VArray positions = *attributes.lookup_or_default( "position", ATTR_DOMAIN_POINT, float3(0)); positions.materialize({(float3 *)vert_coords, mesh->totvert}); } float (*BKE_mesh_vert_coords_alloc(const Mesh *mesh, int *r_vert_len))[3] { float(*vert_coords)[3] = (float(*)[3])MEM_mallocN(sizeof(float[3]) * mesh->totvert, __func__); BKE_mesh_vert_coords_get(mesh, vert_coords); if (r_vert_len) { *r_vert_len = mesh->totvert; } return vert_coords; } void BKE_mesh_vert_coords_apply(Mesh *mesh, const float (*vert_coords)[3]) { MutableSpan positions = mesh->vert_positions_for_write(); for (const int i : positions.index_range()) { copy_v3_v3(positions[i], vert_coords[i]); } BKE_mesh_tag_positions_changed(mesh); } void BKE_mesh_vert_coords_apply_with_mat4(Mesh *mesh, const float (*vert_coords)[3], const float mat[4][4]) { MutableSpan positions = mesh->vert_positions_for_write(); for (const int i : positions.index_range()) { mul_v3_m4v3(positions[i], mat, vert_coords[i]); } BKE_mesh_tag_positions_changed(mesh); } static float (*ensure_corner_normal_layer(Mesh &mesh))[3] { float(*r_loop_normals)[3]; if (CustomData_has_layer(&mesh.ldata, CD_NORMAL)) { r_loop_normals = (float(*)[3])CustomData_get_layer_for_write( &mesh.ldata, CD_NORMAL, mesh.totloop); memset(r_loop_normals, 0, sizeof(float[3]) * mesh.totloop); } else { r_loop_normals = (float(*)[3])CustomData_add_layer( &mesh.ldata, CD_NORMAL, CD_SET_DEFAULT, mesh.totloop); CustomData_set_layer_flag(&mesh.ldata, CD_NORMAL, CD_FLAG_TEMPORARY); } return r_loop_normals; } void BKE_mesh_calc_normals_split_ex(Mesh *mesh, MLoopNorSpaceArray *r_lnors_spacearr, float (*r_corner_normals)[3]) { /* Note that we enforce computing clnors when the clnor space array is requested by caller here. * However, we obviously only use the auto-smooth angle threshold * only in case auto-smooth is enabled. */ const bool use_split_normals = (r_lnors_spacearr != nullptr) || ((mesh->flag & ME_AUTOSMOOTH) != 0); const float split_angle = (mesh->flag & ME_AUTOSMOOTH) != 0 ? mesh->smoothresh : float(M_PI); /* may be nullptr */ blender::short2 *clnors = (blender::short2 *)CustomData_get_layer_for_write( &mesh->ldata, CD_CUSTOMLOOPNORMAL, mesh->totloop); const bool *sharp_edges = static_cast( CustomData_get_layer_named(&mesh->edata, CD_PROP_BOOL, "sharp_edge")); const bool *sharp_faces = static_cast( CustomData_get_layer_named(&mesh->pdata, CD_PROP_BOOL, "sharp_face")); blender::bke::mesh::normals_calc_loop( mesh->vert_positions(), mesh->edges(), mesh->polys(), mesh->corner_verts(), mesh->corner_edges(), {}, mesh->vert_normals(), mesh->poly_normals(), sharp_edges, sharp_faces, use_split_normals, split_angle, clnors, nullptr, {reinterpret_cast(r_corner_normals), mesh->totloop}); } void BKE_mesh_calc_normals_split(Mesh *mesh) { BKE_mesh_calc_normals_split_ex(mesh, nullptr, ensure_corner_normal_layer(*mesh)); } /* **** Depsgraph evaluation **** */ void BKE_mesh_eval_geometry(Depsgraph *depsgraph, Mesh *mesh) { DEG_debug_print_eval(depsgraph, __func__, mesh->id.name, mesh); BKE_mesh_texspace_calc(mesh); /* We are here because something did change in the mesh. This means we can not trust the existing * evaluated mesh, and we don't know what parts of the mesh did change. So we simply delete the * evaluated mesh and let objects to re-create it with updated settings. */ if (mesh->runtime->mesh_eval != nullptr) { mesh->runtime->mesh_eval->edit_mesh = nullptr; BKE_id_free(nullptr, mesh->runtime->mesh_eval); mesh->runtime->mesh_eval = nullptr; } if (DEG_is_active(depsgraph)) { Mesh *mesh_orig = (Mesh *)DEG_get_original_id(&mesh->id); if (mesh->texspace_flag & ME_TEXSPACE_FLAG_AUTO_EVALUATED) { mesh_orig->texspace_flag |= ME_TEXSPACE_FLAG_AUTO_EVALUATED; copy_v3_v3(mesh_orig->texspace_location, mesh->texspace_location); copy_v3_v3(mesh_orig->texspace_size, mesh->texspace_size); } } }