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tornavis/source/blender/blenkernel/intern/mesh.cc

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/* SPDX-FileCopyrightText: 2001-2002 NaN Holding BV. All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later */
/** \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_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_matrix.h"
#include "BLI_math_vector.hh"
#include "BLI_memarena.h"
#include "BLI_ordered_edge.hh"
#include "BLI_resource_scope.hh"
#include "BLI_set.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.hh"
#include "BKE_editmesh_cache.hh"
#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.hh"
#include "BKE_mesh_runtime.hh"
#include "BKE_mesh_wrapper.hh"
#include "BKE_modifier.hh"
#include "BKE_multires.hh"
#include "BKE_object.hh"
#include "PIL_time.h"
#include "DEG_depsgraph.hh"
#include "DEG_depsgraph_query.hh"
#include "BLO_read_write.hh"
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 = reinterpret_cast<Mesh *>(id);
BLI_assert(MEMCMP_STRUCT_AFTER_IS_ZERO(mesh, id));
MEMCPY_STRUCT_AFTER(mesh, DNA_struct_default_get(Mesh), id);
CustomData_reset(&mesh->vert_data);
CustomData_reset(&mesh->edge_data);
CustomData_reset(&mesh->fdata_legacy);
CustomData_reset(&mesh->face_data);
CustomData_reset(&mesh->loop_data);
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 = reinterpret_cast<Mesh *>(id_dst);
const Mesh *mesh_src = reinterpret_cast<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->vert_normals_cache = mesh_src->runtime->vert_normals_cache;
mesh_dst->runtime->face_normals_cache = mesh_src->runtime->face_normals_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_faces_cache = mesh_src->runtime->looptri_faces_cache;
mesh_dst->runtime->vert_to_face_offset_cache = mesh_src->runtime->vert_to_face_offset_cache;
mesh_dst->runtime->vert_to_face_map_cache = mesh_src->runtime->vert_to_face_map_cache;
mesh_dst->runtime->vert_to_corner_map_cache = mesh_src->runtime->vert_to_corner_map_cache;
mesh_dst->runtime->corner_to_face_map_cache = mesh_src->runtime->corner_to_face_map_cache;
/* Only do tessface if we have no faces. */
const bool do_tessface = ((mesh_src->totface_legacy != 0) && (mesh_src->faces_num == 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<char *>(
MEM_dupallocN(mesh_src->active_color_attribute));
mesh_dst->default_color_attribute = static_cast<char *>(
MEM_dupallocN(mesh_src->default_color_attribute));
CustomData_copy(&mesh_src->vert_data, &mesh_dst->vert_data, mask.vmask, mesh_dst->totvert);
CustomData_copy(&mesh_src->edge_data, &mesh_dst->edge_data, mask.emask, mesh_dst->totedge);
CustomData_copy(&mesh_src->loop_data, &mesh_dst->loop_data, mask.lmask, mesh_dst->totloop);
CustomData_copy(&mesh_src->face_data, &mesh_dst->face_data, mask.pmask, mesh_dst->faces_num);
blender::implicit_sharing::copy_shared_pointer(mesh_src->face_offset_indices,
mesh_src->runtime->face_offsets_sharing_info,
&mesh_dst->face_offset_indices,
&mesh_dst->runtime->face_offsets_sharing_info);
if (do_tessface) {
CustomData_copy(
&mesh_src->fdata_legacy, &mesh_dst->fdata_legacy, mask.fmask, mesh_dst->totface_legacy);
}
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(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 = reinterpret_cast<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 = reinterpret_cast<Mesh *>(id);
const int flag = BKE_lib_query_foreachid_process_flags_get(data);
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);
}
if (flag & IDWALK_DO_DEPRECATED_POINTERS) {
BKE_LIB_FOREACHID_PROCESS_ID_NOCHECK(data, mesh->ipo, IDWALK_CB_USER);
}
}
static void mesh_foreach_path(ID *id, BPathForeachPathData *bpath_data)
{
Mesh *me = reinterpret_cast<Mesh *>(id);
if (me->loop_data.external) {
BKE_bpath_foreach_path_fixed_process(
bpath_data, me->loop_data.external->filepath, sizeof(me->loop_data.external->filepath));
}
}
static void mesh_blend_write(BlendWriter *writer, ID *id, const void *id_address)
{
using namespace blender;
using namespace blender::bke;
Mesh *mesh = reinterpret_cast<Mesh *>(id);
const bool is_undo = BLO_write_is_undo(writer);
Vector<CustomDataLayer, 16> vert_layers;
Vector<CustomDataLayer, 16> edge_layers;
Vector<CustomDataLayer, 16> loop_layers;
Vector<CustomDataLayer, 16> face_layers;
/* Cache only - don't write. */
mesh->mface = nullptr;
mesh->totface_legacy = 0;
memset(&mesh->fdata_legacy, 0, sizeof(mesh->fdata_legacy));
/* 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->vert_data, 0, sizeof(mesh->vert_data));
mesh->totedge = 0;
memset(&mesh->edge_data, 0, sizeof(mesh->edge_data));
mesh->totloop = 0;
memset(&mesh->loop_data, 0, sizeof(mesh->loop_data));
mesh->faces_num = 0;
memset(&mesh->face_data, 0, sizeof(mesh->face_data));
mesh->face_offset_indices = nullptr;
}
else {
CustomData_blend_write_prepare(mesh->vert_data, vert_layers, {});
CustomData_blend_write_prepare(mesh->edge_data, edge_layers, {});
CustomData_blend_write_prepare(mesh->loop_data, loop_layers, {});
CustomData_blend_write_prepare(mesh->face_data, face_layers, {});
mesh_sculpt_mask_to_legacy(vert_layers);
}
mesh->runtime = nullptr;
BLO_write_id_struct(writer, Mesh, id_address, &mesh->id);
BKE_id_blend_write(writer, &mesh->id);
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->vert_data, vert_layers, mesh->totvert, CD_MASK_MESH.vmask, &mesh->id);
CustomData_blend_write(
writer, &mesh->edge_data, edge_layers, mesh->totedge, CD_MASK_MESH.emask, &mesh->id);
/* `fdata` is cleared above but written so slots align. */
CustomData_blend_write(
writer, &mesh->fdata_legacy, {}, mesh->totface_legacy, CD_MASK_MESH.fmask, &mesh->id);
CustomData_blend_write(
writer, &mesh->loop_data, loop_layers, mesh->totloop, CD_MASK_MESH.lmask, &mesh->id);
CustomData_blend_write(
writer, &mesh->face_data, face_layers, mesh->faces_num, CD_MASK_MESH.pmask, &mesh->id);
if (mesh->face_offset_indices) {
BLO_write_int32_array(writer, mesh->faces_num + 1, mesh->face_offset_indices);
}
}
static void mesh_blend_read_data(BlendDataReader *reader, ID *id)
{
Mesh *mesh = reinterpret_cast<Mesh *>(id);
BLO_read_pointer_array(reader, (void **)&mesh->mat);
/* This check added for python created meshes. */
if (!mesh->mat) {
mesh->totcol = 0;
}
/* 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);
BLO_read_list(reader, &mesh->vertex_group_names);
CustomData_blend_read(reader, &mesh->vert_data, mesh->totvert);
CustomData_blend_read(reader, &mesh->edge_data, mesh->totedge);
CustomData_blend_read(reader, &mesh->fdata_legacy, mesh->totface_legacy);
CustomData_blend_read(reader, &mesh->loop_data, mesh->totloop);
CustomData_blend_read(reader, &mesh->face_data, mesh->faces_num);
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->face_offset_indices) {
BLO_read_int32_array(reader, mesh->faces_num + 1, &mesh->face_offset_indices);
mesh->runtime->face_offsets_sharing_info = blender::implicit_sharing::info_for_mem_free(
mesh->face_offset_indices);
}
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_legacy; i++, tf++) {
BLI_endian_switch_uint32_array(tf->col, 4);
}
}
}
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*/ N_("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_after_liblink*/ nullptr,
/*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)
{
using namespace blender;
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;
Set<OrderedEdge> ordered_edges;
ordered_edges.reserve(etot);
for (const int2 value : Span(e1, etot)) {
ordered_edges.add(value);
}
for (j = 0; j < etot; j++) {
if (!ordered_edges.contains(e2[j])) {
return MESHCMP_EDGEUNKNOWN;
}
}
}
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_QUATERNION: {
const float(*l1_data)[4] = (float(*)[4])l1->data;
const float(*l2_data)[4] = (float(*)[4])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;
}
if (compare_threshold_relative(l1_data[i][3], l2_data[i][3], 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->faces_num != me2->faces_num) {
return "Number of faces don't match";
}
if (me1->totloop != me2->totloop) {
return "Number of loops don't match";
}
if (!std::equal(
me1->face_offsets().begin(), me1->face_offsets().end(), me2->face_offsets().begin()))
{
return "Face sizes don't match";
}
if ((c = customdata_compare(&me1->vert_data, &me2->vert_data, me1->totvert, me1, thresh))) {
return cmpcode_to_str(c);
}
if ((c = customdata_compare(&me1->edge_data, &me2->edge_data, me1->totedge, me1, thresh))) {
return cmpcode_to_str(c);
}
if ((c = customdata_compare(&me1->loop_data, &me2->loop_data, me1->totloop, me1, thresh))) {
return cmpcode_to_str(c);
}
if ((c = customdata_compare(&me1->face_data, &me2->face_data, me1->faces_num, 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->vert_data, CD_MVERT_SKIN)) {
vs = (MVertSkin *)CustomData_add_layer(
&me->vert_data, CD_MVERT_SKIN, CD_SET_DEFAULT, me->totvert);
/* Mark an arbitrary vertex as root */
if (vs) {
vs->flag |= MVERT_SKIN_ROOT;
}
}
}
}
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->loop_data, 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.vert_data, mesh.totvert);
CustomData_free(&mesh.edge_data, mesh.totedge);
CustomData_free(&mesh.fdata_legacy, mesh.totface_legacy);
CustomData_free(&mesh.loop_data, mesh.totloop);
CustomData_free(&mesh.face_data, mesh.faces_num);
if (mesh.face_offset_indices) {
blender::implicit_sharing::free_shared_data(&mesh.face_offset_indices,
&mesh.runtime->face_offsets_sharing_info);
}
MEM_SAFE_FREE(mesh.mselect);
mesh.totvert = 0;
mesh.totedge = 0;
mesh.totface_legacy = 0;
mesh.totloop = 0;
mesh.faces_num = 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_legacy, mesh->totface_legacy);
}
else {
CustomData_reset(&mesh->fdata_legacy);
}
mesh->totface_legacy = 0;
}
Mesh *BKE_mesh_add(Main *bmain, const char *name)
{
return static_cast<Mesh *>(BKE_id_new(bmain, ID_ME, name));
}
void BKE_mesh_face_offsets_ensure_alloc(Mesh *mesh)
{
BLI_assert(mesh->face_offset_indices == nullptr);
BLI_assert(mesh->runtime->face_offsets_sharing_info == nullptr);
if (mesh->faces_num == 0) {
return;
}
mesh->face_offset_indices = static_cast<int *>(
MEM_malloc_arrayN(mesh->faces_num + 1, sizeof(int), __func__));
mesh->runtime->face_offsets_sharing_info = blender::implicit_sharing::info_for_mem_free(
mesh->face_offset_indices);
#ifdef DEBUG
/* Fill offsets with obviously bad values to simplify finding missing initialization. */
mesh->face_offsets_for_write().fill(-1);
#endif
/* Set common values for convenience. */
mesh->face_offset_indices[0] = 0;
mesh->face_offset_indices[mesh->faces_num] = mesh->totloop;
}
MutableSpan<int> Mesh::face_offsets_for_write()
{
if (this->faces_num == 0) {
return {};
}
blender::implicit_sharing::make_trivial_data_mutable(
&this->face_offset_indices, &this->runtime->face_offsets_sharing_info, this->faces_num + 1);
return {this->face_offset_indices, this->faces_num + 1};
}
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 faces_num,
const int loops_num)
{
Mesh *mesh = static_cast<Mesh *>(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->faces_num = faces_num;
mesh->totloop = loops_num;
mesh_ensure_cdlayers_primary(*mesh);
BKE_mesh_face_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->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 faces_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_legacy != 0) && (me_src->faces_num == 0)));
Mesh *me_dst = static_cast<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->faces_num = faces_num;
me_dst->totloop = loops_num;
me_dst->totface_legacy = tessface_num;
BKE_mesh_copy_parameters_for_eval(me_dst, me_src);
CustomData_copy_layout(
&me_src->vert_data, &me_dst->vert_data, mask.vmask, CD_SET_DEFAULT, verts_num);
CustomData_copy_layout(
&me_src->edge_data, &me_dst->edge_data, mask.emask, CD_SET_DEFAULT, edges_num);
CustomData_copy_layout(
&me_src->face_data, &me_dst->face_data, mask.pmask, CD_SET_DEFAULT, faces_num);
CustomData_copy_layout(
&me_src->loop_data, &me_dst->loop_data, mask.lmask, CD_SET_DEFAULT, loops_num);
if (do_tessface) {
CustomData_copy_layout(
&me_src->fdata_legacy, &me_dst->fdata_legacy, 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_face_offsets_ensure_alloc(me_dst);
if (do_tessface && !CustomData_get_layer(&me_dst->fdata_legacy, CD_MFACE)) {
CustomData_add_layer(&me_dst->fdata_legacy, CD_MFACE, CD_SET_DEFAULT, me_dst->totface_legacy);
}
return me_dst;
}
Mesh *BKE_mesh_new_nomain_from_template(const Mesh *me_src,
const int verts_num,
const int edges_num,
const int faces_num,
const int loops_num)
{
return BKE_mesh_new_nomain_from_template_ex(
me_src, verts_num, edges_num, 0, faces_num, loops_num, CD_MASK_EVERYTHING);
}
void BKE_mesh_eval_delete(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<Mesh *>(
BKE_id_copy_ex(nullptr, &source->id, nullptr, LIB_ID_COPY_LOCALIZE));
}
BMesh *BKE_mesh_to_bmesh_ex(const Mesh *me,
const BMeshCreateParams *create_params,
const 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 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 BMeshToMeshParams *params,
const Mesh *me_settings)
{
BLI_assert(params->calc_object_remap == false);
Mesh *mesh = static_cast<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 = static_cast<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->vert_data, mesh->totvert);
ensure_orig_index_layer(mesh->edge_data, mesh->totedge);
ensure_orig_index_layer(mesh->face_data, mesh->faces_num);
}
BoundBox BKE_mesh_boundbox_get(Object *ob)
{
using namespace blender;
Mesh *me = static_cast<Mesh *>(ob->data);
const Bounds<float3> bounds = me->bounds_min_max().value_or(
Bounds<float3>{float3(-1.0f), float3(1.0f)});
BoundBox bb;
BKE_boundbox_init_from_minmax(&bb, bounds.min, bounds.max);
return bb;
}
void BKE_mesh_texspace_calc(Mesh *me)
{
using namespace blender;
if (me->texspace_flag & ME_TEXSPACE_FLAG_AUTO) {
const Bounds<float3> bounds = me->bounds_min_max().value_or(
Bounds<float3>{float3(-1.0f), float3(1.0f)});
float texspace_location[3], texspace_size[3];
mid_v3_v3v3(texspace_location, bounds.min, bounds.max);
texspace_size[0] = (bounds.max[0] - bounds.min[0]) / 2.0f;
texspace_size[1] = (bounds.max[1] - bounds.min[1]) / 2.0f;
texspace_size[2] = (bounds.max[2] - bounds.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;
}
}
float (*BKE_mesh_orco_verts_get(Object *ob))[3]
{
Mesh *me = static_cast<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<float3> 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, const bool 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->vert_data, 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->vert_data, CD_ORCO, orcodata, mesh->totvert, nullptr);
}
Mesh *BKE_mesh_from_object(Object *ob)
{
if (ob == nullptr) {
return nullptr;
}
if (ob->type == OB_MESH) {
return static_cast<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 = static_cast<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<int> material_indices = attributes.lookup_for_write<int>("material_index");
if (!material_indices) {
return;
}
if (material_indices.domain != ATTR_DOMAIN_FACE) {
BLI_assert_unreachable();
return;
}
MutableVArraySpan<int> 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<int> material_indices = *attributes.lookup_or_default<int>(
"material_index", ATTR_DOMAIN_FACE, 0);
if (material_indices.is_single()) {
return material_indices.get_internal_single() == index;
}
const VArraySpan<int> 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<int> material_indices = attributes.lookup_or_add_for_write_span<int>(
"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_edge");
attributes.remove("sharp_face");
}
else {
attributes.remove("sharp_edge");
SpanAttributeWriter<bool> sharp_faces = attributes.lookup_or_add_for_write_only_span<bool>(
"sharp_face", ATTR_DOMAIN_FACE);
sharp_faces.span.fill(true);
sharp_faces.finish();
}
}
void BKE_mesh_sharp_edges_set_from_angle(Mesh *me, const float angle)
{
using namespace blender;
using namespace blender::bke;
bke::MutableAttributeAccessor attributes = me->attributes_for_write();
if (angle >= M_PI) {
attributes.remove("sharp_edge");
attributes.remove("sharp_face");
return;
}
if (angle == 0.0f) {
BKE_mesh_smooth_flag_set(me, false);
return;
}
bke::SpanAttributeWriter<bool> sharp_edges = attributes.lookup_or_add_for_write_span<bool>(
"sharp_edge", ATTR_DOMAIN_EDGE);
const bool *sharp_faces = static_cast<const bool *>(
CustomData_get_layer_named(&me->face_data, CD_PROP_BOOL, "sharp_face"));
bke::mesh::edges_sharp_from_angle_set(me->faces(),
me->corner_verts(),
me->corner_edges(),
me->face_normals(),
me->corner_to_face_map(),
sharp_faces,
angle,
sharp_edges.span);
sharp_edges.finish();
}
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;
}
}
std::optional<blender::Bounds<blender::float3>> Mesh::bounds_min_max() const
{
using namespace blender;
const int verts_num = BKE_mesh_wrapper_vert_len(this);
if (verts_num == 0) {
return std::nullopt;
}
this->runtime->bounds_cache.ensure([&](Bounds<float3> &r_bounds) {
switch (this->runtime->wrapper_type) {
case ME_WRAPPER_TYPE_BMESH:
r_bounds = *BKE_editmesh_cache_calc_minmax(this->edit_mesh, this->runtime->edit_data);
break;
case ME_WRAPPER_TYPE_MDATA:
case ME_WRAPPER_TYPE_SUBD:
r_bounds = *bounds::min_max(this->vert_positions());
break;
}
});
return this->runtime->bounds_cache.data();
}
void Mesh::bounds_set_eager(const blender::Bounds<float3> &bounds)
{
this->runtime->bounds_cache.ensure([&](blender::Bounds<float3> &r_data) { r_data = bounds; });
}
void BKE_mesh_transform(Mesh *me, const float mat[4][4], bool do_keys)
{
MutableSpan<float3> 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);
}
}
}
BKE_mesh_tag_positions_changed(me);
}
static void translate_positions(MutableSpan<float3> 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<float3>> 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<float3 *>(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<bool> select_vert = *attributes.lookup_or_default<bool>(
".select_vert", ATTR_DOMAIN_POINT, false);
const VArray<bool> select_edge = *attributes.lookup_or_default<bool>(
".select_edge", ATTR_DOMAIN_EDGE, false);
const VArray<bool> select_poly = *attributes.lookup_or_default<bool>(
".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. */
}
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__);
MutableSpan(reinterpret_cast<float3 *>(vert_coords), mesh->totvert)
.copy_from(mesh->vert_positions());
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<float3> 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<float3> 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);
}
/* **** 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 = reinterpret_cast<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);
}
}
}
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