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03cfa75bccd632fbca2c9df167c9c9baf9f6ee8c
blender-archive/source/blender/blenkernel/intern/data_transfer.cc
Hans Goudey 16fbadde36 Mesh: Replace MLoop struct with generic attributes 
Implements #102359.

Split the `MLoop` struct into two separate integer arrays called
`corner_verts` and `corner_edges`, referring to the vertex each corner
is attached to and the next edge around the face at each corner. These
arrays can be sliced to give access to the edges or vertices in a face.
Then they are often referred to as "poly_verts" or "poly_edges".

The main benefits are halving the necessary memory bandwidth when only
one array is used and simplifications from using regular integer indices
instead of a special-purpose struct.

The commit also starts a renaming from "loop" to "corner" in mesh code.

Like the other mesh struct of array refactors, forward compatibility is
kept by writing files with the older format. This will be done until 4.0
to ease the transition process.

Looking at a small portion of the patch should give a good impression
for the rest of the changes. I tried to make the changes as small as
possible so it's easy to tell the correctness from the diff. Though I
found Blender developers have been very inventive over the last decade
when finding different ways to loop over the corners in a face.

For performance, nearly every piece of code that deals with `Mesh` is
slightly impacted. Any algorithm that is memory bottle-necked should
see an improvement. For example, here is a comparison of interpolating
a vertex float attribute to face corners (Ryzen 3700x):

**Before** (Average: 3.7 ms, Min: 3.4 ms)
```
threading::parallel_for(loops.index_range(), 4096, [&](IndexRange range) {
  for (const int64_t i : range) {
    dst[i] = src[loops[i].v];
  }
});
```

**After** (Average: 2.9 ms, Min: 2.6 ms)
```
array_utils::gather(src, corner_verts, dst);
```

That's an improvement of 28% to the average timings, and it's also a
simplification, since an index-based routine can be used instead.
For more examples using the new arrays, see the design task.

Pull Request: blender/blender#104424
2023-03-20 15:55:13 +01:00

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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2014 Blender Foundation. All rights reserved. */
/** \file
* \ingroup bke
*/
#include "CLG_log.h"
#include "MEM_guardedalloc.h"
#include "DNA_customdata_types.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_object_types.h"
#include "DNA_scene_types.h"
#include "BLI_blenlib.h"
#include "BLI_math.h"
#include "BLI_utildefines.h"
#include "BKE_attribute.h"
#include "BKE_attribute.hh"
#include "BKE_customdata.h"
#include "BKE_data_transfer.h"
#include "BKE_deform.h"
#include "BKE_mesh.hh"
#include "BKE_mesh_mapping.h"
#include "BKE_mesh_remap.h"
#include "BKE_mesh_runtime.h"
#include "BKE_mesh_wrapper.h"
#include "BKE_modifier.h"
#include "BKE_object.h"
#include "BKE_object_deform.h"
#include "BKE_report.h"
#include "data_transfer_intern.h"
static CLG_LogRef LOG = {"bke.data_transfer"};
void BKE_object_data_transfer_dttypes_to_cdmask(const int dtdata_types,
CustomData_MeshMasks *r_data_masks)
{
for (int i = 0; i < DT_TYPE_MAX; i++) {
const int dtdata_type = 1 << i;
int cddata_type;
if (!(dtdata_types & dtdata_type)) {
continue;
}
cddata_type = BKE_object_data_transfer_dttype_to_cdtype(dtdata_type);
if (!(cddata_type & CD_FAKE)) {
if (DT_DATATYPE_IS_VERT(dtdata_type)) {
r_data_masks->vmask |= 1LL << cddata_type;
}
else if (DT_DATATYPE_IS_EDGE(dtdata_type)) {
r_data_masks->emask |= 1LL << cddata_type;
}
else if (DT_DATATYPE_IS_LOOP(dtdata_type)) {
r_data_masks->lmask |= 1LL << cddata_type;
}
else if (DT_DATATYPE_IS_POLY(dtdata_type)) {
r_data_masks->pmask |= 1LL << cddata_type;
}
}
else if (cddata_type == CD_FAKE_MDEFORMVERT) {
r_data_masks->vmask |= CD_MASK_MDEFORMVERT; /* Exception for vgroups :/ */
}
else if (cddata_type == CD_FAKE_UV) {
r_data_masks->lmask |= CD_MASK_PROP_FLOAT2;
}
else if (cddata_type == CD_FAKE_LNOR) {
r_data_masks->lmask |= CD_MASK_NORMAL | CD_MASK_CUSTOMLOOPNORMAL;
}
}
}
bool BKE_object_data_transfer_get_dttypes_capacity(const int dtdata_types,
bool *r_advanced_mixing,
bool *r_threshold)
{
bool ret = false;
*r_advanced_mixing = false;
*r_threshold = false;
for (int i = 0; (i < DT_TYPE_MAX) && !(ret && *r_advanced_mixing && *r_threshold); i++) {
const int dtdata_type = 1 << i;
if (!(dtdata_types & dtdata_type)) {
continue;
}
switch (dtdata_type) {
/* Vertex data */
case DT_TYPE_MDEFORMVERT:
*r_advanced_mixing = true;
*r_threshold = true;
ret = true;
break;
case DT_TYPE_SKIN:
*r_threshold = true;
ret = true;
break;
case DT_TYPE_BWEIGHT_VERT:
ret = true;
break;
/* Edge data */
case DT_TYPE_SHARP_EDGE:
*r_threshold = true;
ret = true;
break;
case DT_TYPE_SEAM:
*r_threshold = true;
ret = true;
break;
case DT_TYPE_CREASE:
ret = true;
break;
case DT_TYPE_BWEIGHT_EDGE:
ret = true;
break;
case DT_TYPE_FREESTYLE_EDGE:
*r_threshold = true;
ret = true;
break;
/* Loop/Poly data */
case DT_TYPE_UV:
ret = true;
break;
case DT_TYPE_MPROPCOL_VERT:
case DT_TYPE_MLOOPCOL_VERT:
case DT_TYPE_MPROPCOL_LOOP:
case DT_TYPE_MLOOPCOL_LOOP:
*r_advanced_mixing = true;
*r_threshold = true;
ret = true;
break;
case DT_TYPE_LNOR:
*r_advanced_mixing = true;
ret = true;
break;
case DT_TYPE_SHARP_FACE:
*r_threshold = true;
ret = true;
break;
case DT_TYPE_FREESTYLE_FACE:
*r_threshold = true;
ret = true;
break;
}
}
return ret;
}
int BKE_object_data_transfer_get_dttypes_item_types(const int dtdata_types)
{
int i, ret = 0;
for (i = 0; (i < DT_TYPE_MAX) && (ret ^ (ME_VERT | ME_EDGE | ME_LOOP | ME_POLY)); i++) {
const int dtdata_type = 1 << i;
if (!(dtdata_types & dtdata_type)) {
continue;
}
if (DT_DATATYPE_IS_VERT(dtdata_type)) {
ret |= ME_VERT;
}
if (DT_DATATYPE_IS_EDGE(dtdata_type)) {
ret |= ME_EDGE;
}
if (DT_DATATYPE_IS_LOOP(dtdata_type)) {
ret |= ME_LOOP;
}
if (DT_DATATYPE_IS_POLY(dtdata_type)) {
ret |= ME_POLY;
}
}
return ret;
}
int BKE_object_data_transfer_dttype_to_cdtype(const int dtdata_type)
{
switch (dtdata_type) {
case DT_TYPE_MDEFORMVERT:
return CD_FAKE_MDEFORMVERT;
case DT_TYPE_SHAPEKEY:
return CD_FAKE_SHAPEKEY;
case DT_TYPE_SKIN:
return CD_MVERT_SKIN;
case DT_TYPE_BWEIGHT_VERT:
return CD_BWEIGHT;
case DT_TYPE_SHARP_EDGE:
return CD_FAKE_SHARP;
case DT_TYPE_SEAM:
return CD_FAKE_SEAM;
case DT_TYPE_CREASE:
return CD_CREASE;
case DT_TYPE_BWEIGHT_EDGE:
return CD_BWEIGHT;
case DT_TYPE_FREESTYLE_EDGE:
return CD_FREESTYLE_EDGE;
case DT_TYPE_UV:
return CD_FAKE_UV;
case DT_TYPE_SHARP_FACE:
return CD_FAKE_SHARP;
case DT_TYPE_FREESTYLE_FACE:
return CD_FREESTYLE_FACE;
case DT_TYPE_LNOR:
return CD_FAKE_LNOR;
case DT_TYPE_MLOOPCOL_VERT:
case DT_TYPE_MLOOPCOL_LOOP:
return CD_PROP_BYTE_COLOR;
case DT_TYPE_MPROPCOL_VERT:
case DT_TYPE_MPROPCOL_LOOP:
return CD_PROP_COLOR;
default:
BLI_assert_unreachable();
}
return 0; /* Should never be reached! */
}
int BKE_object_data_transfer_dttype_to_srcdst_index(const int dtdata_type)
{
switch (dtdata_type) {
case DT_TYPE_MDEFORMVERT:
return DT_MULTILAYER_INDEX_MDEFORMVERT;
case DT_TYPE_SHAPEKEY:
return DT_MULTILAYER_INDEX_SHAPEKEY;
case DT_TYPE_UV:
return DT_MULTILAYER_INDEX_UV;
case DT_TYPE_MPROPCOL_VERT:
case DT_TYPE_MLOOPCOL_VERT:
case DT_TYPE_MPROPCOL_VERT | DT_TYPE_MLOOPCOL_VERT:
return DT_MULTILAYER_INDEX_VCOL_VERT;
case DT_TYPE_MPROPCOL_LOOP:
case DT_TYPE_MLOOPCOL_LOOP:
case DT_TYPE_MPROPCOL_LOOP | DT_TYPE_MLOOPCOL_LOOP:
return DT_MULTILAYER_INDEX_VCOL_LOOP;
default:
return DT_MULTILAYER_INDEX_INVALID;
}
}
/* ********** */
/**
* When transferring color attributes, also transfer the active color attribute string.
* If a match can't be found, use the first color layer that can be found (to ensure a valid string
* is set).
*/
static void data_transfer_mesh_attributes_transfer_active_color_string(
Mesh *mesh_dst, Mesh *mesh_src, const eAttrDomainMask mask_domain, const int data_type)
{
if (mesh_dst->active_color_attribute) {
return;
}
const char *active_color_src = BKE_id_attributes_active_color_name(&mesh_src->id);
if ((data_type == CD_PROP_COLOR) &&
!BKE_id_attribute_search(
&mesh_src->id, active_color_src, CD_MASK_PROP_COLOR, ATTR_DOMAIN_MASK_COLOR)) {
return;
}
else if ((data_type == CD_PROP_BYTE_COLOR) &&
!BKE_id_attribute_search(
&mesh_src->id, active_color_src, CD_MASK_PROP_BYTE_COLOR, ATTR_DOMAIN_MASK_COLOR)) {
return;
}
if ((data_type == CD_PROP_COLOR) &&
BKE_id_attribute_search(
&mesh_dst->id, active_color_src, CD_MASK_PROP_COLOR, ATTR_DOMAIN_MASK_COLOR)) {
mesh_dst->active_color_attribute = BLI_strdup(active_color_src);
}
else if ((data_type == CD_PROP_BYTE_COLOR) &&
BKE_id_attribute_search(
&mesh_dst->id, active_color_src, CD_MASK_PROP_BYTE_COLOR, ATTR_DOMAIN_MASK_COLOR)) {
mesh_dst->active_color_attribute = BLI_strdup(active_color_src);
}
else {
CustomDataLayer *first_color_layer = BKE_id_attribute_from_index(
&mesh_dst->id, 0, mask_domain, CD_MASK_COLOR_ALL);
if (first_color_layer != nullptr) {
mesh_dst->active_color_attribute = BLI_strdup(first_color_layer->name);
}
}
}
/**
* When transferring color attributes, also transfer the default color attribute string.
* If a match cant be found, use the first color layer that can be found (to ensure a valid string
* is set).
*/
static void data_transfer_mesh_attributes_transfer_default_color_string(
Mesh *mesh_dst, Mesh *mesh_src, const eAttrDomainMask mask_domain, const int data_type)
{
if (mesh_dst->default_color_attribute) {
return;
}
const char *default_color_src = BKE_id_attributes_default_color_name(&mesh_src->id);
if ((data_type == CD_PROP_COLOR) &&
!BKE_id_attribute_search(
&mesh_src->id, default_color_src, CD_MASK_PROP_COLOR, ATTR_DOMAIN_MASK_COLOR)) {
return;
}
else if ((data_type == CD_PROP_BYTE_COLOR) && !BKE_id_attribute_search(&mesh_src->id,
default_color_src,
CD_MASK_PROP_BYTE_COLOR,
ATTR_DOMAIN_MASK_COLOR)) {
return;
}
if ((data_type == CD_PROP_COLOR) &&
BKE_id_attribute_search(
&mesh_dst->id, default_color_src, CD_MASK_PROP_COLOR, ATTR_DOMAIN_MASK_COLOR)) {
mesh_dst->default_color_attribute = BLI_strdup(default_color_src);
}
else if ((data_type == CD_PROP_BYTE_COLOR) && BKE_id_attribute_search(&mesh_dst->id,
default_color_src,
CD_MASK_PROP_BYTE_COLOR,
ATTR_DOMAIN_MASK_COLOR)) {
mesh_dst->default_color_attribute = BLI_strdup(default_color_src);
}
else {
CustomDataLayer *first_color_layer = BKE_id_attribute_from_index(
&mesh_dst->id, 0, mask_domain, CD_MASK_COLOR_ALL);
if (first_color_layer != nullptr) {
mesh_dst->default_color_attribute = BLI_strdup(first_color_layer->name);
}
}
}
/* ********** */
/* Generic pre/post processing, only used by custom loop normals currently. */
static void data_transfer_dtdata_type_preprocess(Mesh *me_src,
Mesh *me_dst,
const int dtdata_type,
const bool dirty_nors_dst)
{
if (dtdata_type == DT_TYPE_LNOR) {
/* Compute custom normals into regular loop normals, which will be used for the transfer. */
CustomData *ldata_dst = &me_dst->ldata;
const bool use_split_nors_dst = (me_dst->flag & ME_AUTOSMOOTH) != 0;
const float split_angle_dst = me_dst->smoothresh;
/* This should be ensured by cddata_masks we pass to code generating/giving us me_src now. */
BLI_assert(CustomData_get_layer(&me_src->ldata, CD_NORMAL) != nullptr);
(void)me_src;
short(*custom_nors_dst)[2] = static_cast<short(*)[2]>(
CustomData_get_layer_for_write(ldata_dst, CD_CUSTOMLOOPNORMAL, me_dst->totloop));
/* Cache loop nors into a temp CDLayer. */
blender::float3 *loop_nors_dst = static_cast<blender::float3 *>(
CustomData_get_layer_for_write(ldata_dst, CD_NORMAL, me_dst->totloop));
const bool do_loop_nors_dst = (loop_nors_dst == nullptr);
if (do_loop_nors_dst) {
loop_nors_dst = static_cast<blender::float3 *>(
CustomData_add_layer(ldata_dst, CD_NORMAL, CD_SET_DEFAULT, me_dst->totloop));
CustomData_set_layer_flag(ldata_dst, CD_NORMAL, CD_FLAG_TEMPORARY);
}
if (dirty_nors_dst || do_loop_nors_dst) {
const bool *sharp_edges = static_cast<const bool *>(
CustomData_get_layer_named(&me_dst->edata, CD_PROP_BOOL, "sharp_edge"));
const bool *sharp_faces = static_cast<const bool *>(
CustomData_get_layer_named(&me_dst->pdata, CD_PROP_BOOL, "sharp_face"));
blender::bke::mesh::normals_calc_loop(me_dst->vert_positions(),
me_dst->edges(),
me_dst->polys(),
me_dst->corner_verts(),
me_dst->corner_edges(),
{},
me_dst->vert_normals(),
me_dst->poly_normals(),
sharp_edges,
sharp_faces,
use_split_nors_dst,
split_angle_dst,
custom_nors_dst,
nullptr,
{loop_nors_dst, me_dst->totloop});
}
}
}
static void data_transfer_dtdata_type_postprocess(Object * /*ob_src*/,
Object * /*ob_dst*/,
Mesh * /*me_src*/,
Mesh *me_dst,
const int dtdata_type,
const bool changed)
{
using namespace blender;
if (dtdata_type == DT_TYPE_LNOR) {
if (!changed) {
return;
}
/* Bake edited destination loop normals into custom normals again. */
CustomData *ldata_dst = &me_dst->ldata;
blender::float3 *loop_nors_dst = static_cast<blender::float3 *>(
CustomData_get_layer_for_write(ldata_dst, CD_NORMAL, me_dst->totloop));
short(*custom_nors_dst)[2] = static_cast<short(*)[2]>(
CustomData_get_layer_for_write(ldata_dst, CD_CUSTOMLOOPNORMAL, me_dst->totloop));
if (!custom_nors_dst) {
custom_nors_dst = static_cast<short(*)[2]>(
CustomData_add_layer(ldata_dst, CD_CUSTOMLOOPNORMAL, CD_SET_DEFAULT, me_dst->totloop));
}
bke::MutableAttributeAccessor attributes = me_dst->attributes_for_write();
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_dst->pdata, CD_PROP_BOOL, "sharp_face"));
/* Note loop_nors_dst contains our custom normals as transferred from source... */
blender::bke::mesh::normals_loop_custom_set(me_dst->vert_positions(),
me_dst->edges(),
me_dst->polys(),
me_dst->corner_verts(),
me_dst->corner_edges(),
me_dst->vert_normals(),
me_dst->poly_normals(),
sharp_faces,
sharp_edges.span,
{loop_nors_dst, me_dst->totloop},
custom_nors_dst);
sharp_edges.finish();
}
}
/* ********** */
static MeshRemapIslandsCalc data_transfer_get_loop_islands_generator(const int cddata_type)
{
switch (cddata_type) {
case CD_FAKE_UV:
return BKE_mesh_calc_islands_loop_poly_edgeseam;
default:
break;
}
return nullptr;
}
float data_transfer_interp_float_do(const int mix_mode,
const float val_dst,
const float val_src,
const float mix_factor)
{
float val_ret;
if ((mix_mode == CDT_MIX_REPLACE_ABOVE_THRESHOLD && (val_dst < mix_factor)) ||
(mix_mode == CDT_MIX_REPLACE_BELOW_THRESHOLD && (val_dst > mix_factor))) {
return val_dst; /* Do not affect destination. */
}
switch (mix_mode) {
case CDT_MIX_REPLACE_ABOVE_THRESHOLD:
case CDT_MIX_REPLACE_BELOW_THRESHOLD:
return val_src;
case CDT_MIX_MIX:
val_ret = (val_dst + val_src) * 0.5f;
break;
case CDT_MIX_ADD:
val_ret = val_dst + val_src;
break;
case CDT_MIX_SUB:
val_ret = val_dst - val_src;
break;
case CDT_MIX_MUL:
val_ret = val_dst * val_src;
break;
case CDT_MIX_TRANSFER:
default:
val_ret = val_src;
break;
}
return interpf(val_ret, val_dst, mix_factor);
}
/* Helpers to match sources and destinations data layers
* (also handles 'conversions' in CD_FAKE cases). */
void data_transfer_layersmapping_add_item(ListBase *r_map,
const int cddata_type,
const int mix_mode,
const float mix_factor,
const float *mix_weights,
const void *data_src,
void *data_dst,
const int data_src_n,
const int data_dst_n,
const size_t elem_size,
const size_t data_size,
const size_t data_offset,
const uint64_t data_flag,
cd_datatransfer_interp interp,
void *interp_data)
{
CustomDataTransferLayerMap *item = MEM_new<CustomDataTransferLayerMap>(__func__);
BLI_assert(data_dst != nullptr);
item->data_type = cddata_type;
item->mix_mode = mix_mode;
item->mix_factor = mix_factor;
item->mix_weights = mix_weights;
item->data_src = data_src;
item->data_dst = data_dst;
item->data_src_n = data_src_n;
item->data_dst_n = data_dst_n;
item->elem_size = elem_size;
item->data_size = data_size;
item->data_offset = data_offset;
item->data_flag = data_flag;
item->interp = interp;
item->interp_data = interp_data;
BLI_addtail(r_map, item);
}
static void data_transfer_layersmapping_add_item_cd(ListBase *r_map,
const int cddata_type,
const int mix_mode,
const float mix_factor,
const float *mix_weights,
const void *data_src,
void *data_dst,
cd_datatransfer_interp interp,
void *interp_data)
{
uint64_t data_flag = 0;
if (cddata_type == CD_FREESTYLE_EDGE) {
data_flag = FREESTYLE_EDGE_MARK;
}
else if (cddata_type == CD_FREESTYLE_FACE) {
data_flag = FREESTYLE_FACE_MARK;
}
data_transfer_layersmapping_add_item(r_map,
cddata_type,
mix_mode,
mix_factor,
mix_weights,
data_src,
data_dst,
0,
0,
0,
0,
0,
data_flag,
interp,
interp_data);
}
/**
* \note
* All those layer mapping handlers return false *only* if they were given invalid parameters.
* This means that even if they do nothing, they will return true if all given parameters were OK.
* Also, r_map may be nullptr, in which case they will 'only' create/delete destination layers
* according to given parameters.
*/
static bool data_transfer_layersmapping_cdlayers_multisrc_to_dst(ListBase *r_map,
const int cddata_type,
const int mix_mode,
const float mix_factor,
const float *mix_weights,
const int num_elem_dst,
const bool use_create,
const bool use_delete,
const CustomData *cd_src,
CustomData *cd_dst,
const int tolayers,
const bool *use_layers_src,
const int num_layers_src,
cd_datatransfer_interp interp,
void *interp_data)
{
const void *data_src;
void *data_dst = nullptr;
int idx_src = num_layers_src;
int idx_dst, tot_dst = CustomData_number_of_layers(cd_dst, cddata_type);
bool *data_dst_to_delete = nullptr;
if (!use_layers_src) {
/* No source at all, we can only delete all dest if requested... */
if (use_delete) {
idx_dst = tot_dst;
while (idx_dst--) {
CustomData_free_layer(cd_dst, cddata_type, num_elem_dst, idx_dst);
}
}
return true;
}
switch (tolayers) {
case DT_LAYERS_INDEX_DST:
idx_dst = tot_dst;
/* Find last source actually used! */
while (idx_src-- && !use_layers_src[idx_src]) {
/* pass */
}
idx_src++;
if (idx_dst < idx_src) {
if (use_create) {
/* Create as much data layers as necessary! */
for (; idx_dst < idx_src; idx_dst++) {
CustomData_add_layer(
cd_dst, eCustomDataType(cddata_type), CD_SET_DEFAULT, num_elem_dst);
}
}
else {
/* Otherwise, just try to map what we can with existing dst data layers. */
idx_src = idx_dst;
}
}
else if (use_delete && idx_dst > idx_src) {
while (idx_dst-- > idx_src) {
CustomData_free_layer(cd_dst, cddata_type, num_elem_dst, idx_dst);
}
}
if (r_map) {
while (idx_src--) {
if (!use_layers_src[idx_src]) {
continue;
}
data_src = CustomData_get_layer_n(cd_src, cddata_type, idx_src);
data_dst = CustomData_get_layer_n_for_write(cd_dst, cddata_type, idx_src, num_elem_dst);
data_transfer_layersmapping_add_item_cd(r_map,
cddata_type,
mix_mode,
mix_factor,
mix_weights,
data_src,
data_dst,
interp,
interp_data);
}
}
break;
case DT_LAYERS_NAME_DST:
if (use_delete) {
if (tot_dst) {
data_dst_to_delete = static_cast<bool *>(
MEM_mallocN(sizeof(*data_dst_to_delete) * size_t(tot_dst), __func__));
memset(data_dst_to_delete, true, sizeof(*data_dst_to_delete) * size_t(tot_dst));
}
}
while (idx_src--) {
const char *name;
if (!use_layers_src[idx_src]) {
continue;
}
name = CustomData_get_layer_name(cd_src, cddata_type, idx_src);
data_src = CustomData_get_layer_n(cd_src, cddata_type, idx_src);
if ((idx_dst = CustomData_get_named_layer(cd_dst, cddata_type, name)) == -1) {
if (use_create) {
CustomData_add_layer_named(
cd_dst, eCustomDataType(cddata_type), CD_SET_DEFAULT, num_elem_dst, name);
idx_dst = CustomData_get_named_layer(cd_dst, cddata_type, name);
}
else {
/* If we are not allowed to create missing dst data layers,
* just skip matching src one. */
continue;
}
}
else if (data_dst_to_delete) {
data_dst_to_delete[idx_dst] = false;
}
if (r_map) {
data_dst = CustomData_get_layer_n_for_write(cd_dst, cddata_type, idx_dst, num_elem_dst);
data_transfer_layersmapping_add_item_cd(r_map,
cddata_type,
mix_mode,
mix_factor,
mix_weights,
data_src,
data_dst,
interp,
interp_data);
}
}
if (data_dst_to_delete) {
/* NOTE:
* This won't affect newly created layers, if any, since tot_dst has not been updated!
* Also, looping backward ensures us we do not suffer
* from index shifting when deleting a layer. */
for (idx_dst = tot_dst; idx_dst--;) {
if (data_dst_to_delete[idx_dst]) {
CustomData_free_layer(cd_dst, cddata_type, num_elem_dst, idx_dst);
}
}
MEM_freeN(data_dst_to_delete);
}
break;
default:
return false;
}
return true;
}
static bool data_transfer_layersmapping_cdlayers(ListBase *r_map,
const int cddata_type,
const int mix_mode,
const float mix_factor,
const float *mix_weights,
const int num_elem_dst,
const bool use_create,
const bool use_delete,
const CustomData *cd_src,
CustomData *cd_dst,
const int fromlayers,
const int tolayers,
cd_datatransfer_interp interp,
void *interp_data)
{
int idx_src, idx_dst;
const void *data_src;
void *data_dst = nullptr;
if (CustomData_layertype_is_singleton(cddata_type)) {
if (!(data_src = CustomData_get_layer(cd_src, cddata_type))) {
if (use_delete) {
CustomData_free_layer(cd_dst, cddata_type, num_elem_dst, 0);
}
return true;
}
data_dst = CustomData_get_layer_for_write(cd_dst, cddata_type, num_elem_dst);
if (!data_dst) {
if (!use_create) {
return true;
}
data_dst = CustomData_add_layer(
cd_dst, eCustomDataType(cddata_type), CD_SET_DEFAULT, num_elem_dst);
}
if (r_map) {
data_transfer_layersmapping_add_item_cd(r_map,
cddata_type,
mix_mode,
mix_factor,
mix_weights,
data_src,
data_dst,
interp,
interp_data);
}
}
else if (fromlayers == DT_LAYERS_ACTIVE_SRC || fromlayers >= 0) {
/* NOTE: use_delete has not much meaning in this case, ignored. */
if (fromlayers >= 0) { /* Real-layer index */
idx_src = fromlayers;
}
else {
if ((idx_src = CustomData_get_active_layer(cd_src, cddata_type)) == -1) {
return true;
}
}
data_src = CustomData_get_layer_n(cd_src, cddata_type, idx_src);
if (!data_src) {
return true;
}
if (tolayers >= 0) { /* Real-layer index */
idx_dst = tolayers;
data_dst = CustomData_get_layer_n_for_write(cd_dst, cddata_type, idx_dst, num_elem_dst);
}
else if (tolayers == DT_LAYERS_ACTIVE_DST) {
if ((idx_dst = CustomData_get_active_layer(cd_dst, cddata_type)) == -1) {
if (!use_create) {
return true;
}
data_dst = CustomData_add_layer(
cd_dst, eCustomDataType(cddata_type), CD_SET_DEFAULT, num_elem_dst);
}
else {
data_dst = CustomData_get_layer_n_for_write(cd_dst, cddata_type, idx_dst, num_elem_dst);
}
}
else if (tolayers == DT_LAYERS_INDEX_DST) {
int num = CustomData_number_of_layers(cd_dst, cddata_type);
idx_dst = idx_src;
if (num <= idx_dst) {
if (!use_create) {
return true;
}
/* Create as much data layers as necessary! */
for (; num <= idx_dst; num++) {
CustomData_add_layer(cd_dst, eCustomDataType(cddata_type), CD_SET_DEFAULT, num_elem_dst);
}
}
data_dst = CustomData_get_layer_n_for_write(cd_dst, cddata_type, idx_dst, num_elem_dst);
}
else if (tolayers == DT_LAYERS_NAME_DST) {
const char *name = CustomData_get_layer_name(cd_src, cddata_type, idx_src);
if ((idx_dst = CustomData_get_named_layer(cd_dst, cddata_type, name)) == -1) {
if (!use_create) {
return true;
}
CustomData_add_layer_named(
cd_dst, eCustomDataType(cddata_type), CD_SET_DEFAULT, num_elem_dst, name);
idx_dst = CustomData_get_named_layer(cd_dst, cddata_type, name);
}
data_dst = CustomData_get_layer_n_for_write(cd_dst, cddata_type, idx_dst, num_elem_dst);
}
else {
return false;
}
if (!data_dst) {
return false;
}
if (r_map) {
data_transfer_layersmapping_add_item_cd(r_map,
cddata_type,
mix_mode,
mix_factor,
mix_weights,
data_src,
data_dst,
interp,
interp_data);
}
}
else if (fromlayers == DT_LAYERS_ALL_SRC) {
int num_src = CustomData_number_of_layers(cd_src, cddata_type);
bool *use_layers_src = num_src ? static_cast<bool *>(MEM_mallocN(
sizeof(*use_layers_src) * size_t(num_src), __func__)) :
nullptr;
bool ret;
if (use_layers_src) {
memset(use_layers_src, true, sizeof(*use_layers_src) * num_src);
}
ret = data_transfer_layersmapping_cdlayers_multisrc_to_dst(r_map,
cddata_type,
mix_mode,
mix_factor,
mix_weights,
num_elem_dst,
use_create,
use_delete,
cd_src,
cd_dst,
tolayers,
use_layers_src,
num_src,
interp,
interp_data);
if (use_layers_src) {
MEM_freeN(use_layers_src);
}
return ret;
}
else {
return false;
}
return true;
}
static bool data_transfer_layersmapping_generate(ListBase *r_map,
Object *ob_src,
Object *ob_dst,
Mesh *me_src,
Mesh *me_dst,
const int elem_type,
int cddata_type,
int mix_mode,
float mix_factor,
const float *mix_weights,
const int num_elem_dst,
const bool use_create,
const bool use_delete,
const int fromlayers,
const int tolayers,
SpaceTransform *space_transform)
{
CustomData *cd_src, *cd_dst;
cd_datatransfer_interp interp = nullptr;
void *interp_data = nullptr;
if (elem_type == ME_VERT) {
if (!(cddata_type & CD_FAKE)) {
cd_src = &me_src->vdata;
cd_dst = &me_dst->vdata;
if (!data_transfer_layersmapping_cdlayers(r_map,
cddata_type,
mix_mode,
mix_factor,
mix_weights,
num_elem_dst,
use_create,
use_delete,
cd_src,
cd_dst,
fromlayers,
tolayers,
interp,
interp_data)) {
/* We handle specific source selection cases here. */
return false;
}
return true;
}
if (cddata_type == CD_FAKE_MDEFORMVERT) {
bool ret;
cd_src = &me_src->vdata;
cd_dst = &me_dst->vdata;
ret = data_transfer_layersmapping_vgroups(r_map,
mix_mode,
mix_factor,
mix_weights,
num_elem_dst,
use_create,
use_delete,
ob_src,
ob_dst,
cd_src,
cd_dst,
me_dst != ob_dst->data,
fromlayers,
tolayers);
return ret;
}
if (cddata_type == CD_FAKE_SHAPEKEY) {
/* TODO: leaving shape-keys aside for now, quite specific case,
* since we can't access them from mesh vertices :/ */
return false;
}
}
else if (elem_type == ME_EDGE) {
if (!(cddata_type & CD_FAKE)) { /* Unused for edges, currently... */
cd_src = &me_src->edata;
cd_dst = &me_dst->edata;
if (!data_transfer_layersmapping_cdlayers(r_map,
cddata_type,
mix_mode,
mix_factor,
mix_weights,
num_elem_dst,
use_create,
use_delete,
cd_src,
cd_dst,
fromlayers,
tolayers,
interp,
interp_data)) {
/* We handle specific source selection cases here. */
return false;
}
return true;
}
if (r_map && cddata_type == CD_FAKE_SEAM) {
if (!CustomData_get_layer_named(&me_dst->edata, CD_PROP_BOOL, ".uv_seam")) {
CustomData_add_layer_named(
&me_dst->edata, CD_PROP_BOOL, CD_SET_DEFAULT, me_dst->totedge, ".uv_seam");
}
data_transfer_layersmapping_add_item_cd(
r_map,
CD_PROP_BOOL,
mix_mode,
mix_factor,
mix_weights,
CustomData_get_layer_named(&me_src->edata, CD_PROP_BOOL, ".uv_seam"),
CustomData_get_layer_named_for_write(
&me_dst->edata, CD_PROP_BOOL, ".uv_seam", me_dst->totedge),
interp,
interp_data);
return true;
}
if (r_map && cddata_type == CD_FAKE_SHARP) {
if (!CustomData_get_layer_named(&me_dst->edata, CD_PROP_BOOL, "sharp_edge")) {
CustomData_add_layer_named(
&me_dst->edata, CD_PROP_BOOL, CD_SET_DEFAULT, me_dst->totedge, "sharp_edge");
}
data_transfer_layersmapping_add_item_cd(
r_map,
CD_PROP_BOOL,
mix_mode,
mix_factor,
mix_weights,
CustomData_get_layer_named(&me_src->edata, CD_PROP_BOOL, "sharp_edge"),
CustomData_get_layer_named_for_write(
&me_dst->edata, CD_PROP_BOOL, "sharp_edge", me_dst->totedge),
interp,
interp_data);
return true;
}
return false;
}
else if (elem_type == ME_LOOP) {
if (cddata_type == CD_FAKE_UV) {
cddata_type = CD_PROP_FLOAT2;
}
else if (cddata_type == CD_FAKE_LNOR) {
/* Pre-process should have generated it,
* Post-process will convert it back to CD_CUSTOMLOOPNORMAL. */
cddata_type = CD_NORMAL;
interp_data = space_transform;
interp = customdata_data_transfer_interp_normal_normals;
}
if (!(cddata_type & CD_FAKE)) {
cd_src = &me_src->ldata;
cd_dst = &me_dst->ldata;
if (!data_transfer_layersmapping_cdlayers(r_map,
cddata_type,
mix_mode,
mix_factor,
mix_weights,
num_elem_dst,
use_create,
use_delete,
cd_src,
cd_dst,
fromlayers,
tolayers,
interp,
interp_data)) {
/* We handle specific source selection cases here. */
return false;
}
return true;
}
return false;
}
else if (elem_type == ME_POLY) {
if (cddata_type == CD_FAKE_UV) {
cddata_type = CD_PROP_FLOAT2;
}
if (!(cddata_type & CD_FAKE)) {
cd_src = &me_src->pdata;
cd_dst = &me_dst->pdata;
if (!data_transfer_layersmapping_cdlayers(r_map,
cddata_type,
mix_mode,
mix_factor,
mix_weights,
num_elem_dst,
use_create,
use_delete,
cd_src,
cd_dst,
fromlayers,
tolayers,
interp,
interp_data)) {
/* We handle specific source selection cases here. */
return false;
}
return true;
}
if (r_map && cddata_type == CD_FAKE_SHARP) {
if (!CustomData_get_layer_named(&me_dst->pdata, CD_PROP_BOOL, "sharp_face")) {
CustomData_add_layer_named(
&me_dst->pdata, CD_PROP_BOOL, CD_SET_DEFAULT, me_dst->totpoly, "sharp_face");
}
data_transfer_layersmapping_add_item_cd(
r_map,
CD_PROP_BOOL,
mix_mode,
mix_factor,
mix_weights,
CustomData_get_layer_named(&me_src->pdata, CD_PROP_BOOL, "sharp_face"),
CustomData_get_layer_named_for_write(
&me_dst->pdata, CD_PROP_BOOL, "sharp_face", num_elem_dst),
interp,
interp_data);
return true;
}
return false;
}
return false;
}
void BKE_object_data_transfer_layout(struct Depsgraph *depsgraph,
Scene *scene,
Object *ob_src,
Object *ob_dst,
const int data_types,
const bool use_delete,
const int fromlayers_select[DT_MULTILAYER_INDEX_MAX],
const int tolayers_select[DT_MULTILAYER_INDEX_MAX])
{
Mesh *me_src;
Mesh *me_dst;
const bool use_create = true; /* We always create needed layers here. */
CustomData_MeshMasks me_src_mask = CD_MASK_BAREMESH;
BLI_assert((ob_src != ob_dst) && (ob_src->type == OB_MESH) && (ob_dst->type == OB_MESH));
me_dst = static_cast<Mesh *>(ob_dst->data);
/* Get source evaluated mesh. */
BKE_object_data_transfer_dttypes_to_cdmask(data_types, &me_src_mask);
me_src = mesh_get_eval_final(depsgraph, scene, ob_src, &me_src_mask);
if (!me_src) {
return;
}
/* Check all possible data types. */
for (int i = 0; i < DT_TYPE_MAX; i++) {
const int dtdata_type = 1 << i;
int cddata_type;
int fromlayers, tolayers, fromto_idx;
if (!(data_types & dtdata_type)) {
continue;
}
cddata_type = BKE_object_data_transfer_dttype_to_cdtype(dtdata_type);
fromto_idx = BKE_object_data_transfer_dttype_to_srcdst_index(dtdata_type);
if (fromto_idx != DT_MULTILAYER_INDEX_INVALID) {
fromlayers = fromlayers_select[fromto_idx];
tolayers = tolayers_select[fromto_idx];
}
else {
fromlayers = tolayers = 0;
}
if (DT_DATATYPE_IS_VERT(dtdata_type)) {
const int num_elem_dst = me_dst->totvert;
data_transfer_layersmapping_generate(nullptr,
ob_src,
ob_dst,
me_src,
me_dst,
ME_VERT,
cddata_type,
0,
0.0f,
nullptr,
num_elem_dst,
use_create,
use_delete,
fromlayers,
tolayers,
nullptr);
/* Make sure we have active/default color layers if none existed before.
* Use the active/default from src (if it was transferred), otherwise the first. */
if (ELEM(cddata_type, CD_PROP_COLOR, CD_PROP_BYTE_COLOR)) {
data_transfer_mesh_attributes_transfer_active_color_string(
me_dst, me_src, ATTR_DOMAIN_MASK_POINT, cddata_type);
data_transfer_mesh_attributes_transfer_default_color_string(
me_dst, me_src, ATTR_DOMAIN_MASK_POINT, cddata_type);
}
}
if (DT_DATATYPE_IS_EDGE(dtdata_type)) {
const int num_elem_dst = me_dst->totedge;
data_transfer_layersmapping_generate(nullptr,
ob_src,
ob_dst,
me_src,
me_dst,
ME_EDGE,
cddata_type,
0,
0.0f,
nullptr,
num_elem_dst,
use_create,
use_delete,
fromlayers,
tolayers,
nullptr);
}
if (DT_DATATYPE_IS_LOOP(dtdata_type)) {
const int num_elem_dst = me_dst->totloop;
data_transfer_layersmapping_generate(nullptr,
ob_src,
ob_dst,
me_src,
me_dst,
ME_LOOP,
cddata_type,
0,
0.0f,
nullptr,
num_elem_dst,
use_create,
use_delete,
fromlayers,
tolayers,
nullptr);
/* Make sure we have active/default color layers if none existed before.
* Use the active/default from src (if it was transferred), otherwise the first. */
if (ELEM(cddata_type, CD_PROP_COLOR, CD_PROP_BYTE_COLOR)) {
data_transfer_mesh_attributes_transfer_active_color_string(
me_dst, me_src, ATTR_DOMAIN_MASK_CORNER, cddata_type);
data_transfer_mesh_attributes_transfer_default_color_string(
me_dst, me_src, ATTR_DOMAIN_MASK_CORNER, cddata_type);
}
}
if (DT_DATATYPE_IS_POLY(dtdata_type)) {
const int num_elem_dst = me_dst->totpoly;
data_transfer_layersmapping_generate(nullptr,
ob_src,
ob_dst,
me_src,
me_dst,
ME_POLY,
cddata_type,
0,
0.0f,
nullptr,
num_elem_dst,
use_create,
use_delete,
fromlayers,
tolayers,
nullptr);
}
}
}
bool BKE_object_data_transfer_ex(struct Depsgraph *depsgraph,
Scene *scene,
Object *ob_src,
Object *ob_dst,
Mesh *me_dst,
const int data_types,
bool use_create,
const int map_vert_mode,
const int map_edge_mode,
const int map_loop_mode,
const int map_poly_mode,
SpaceTransform *space_transform,
const bool auto_transform,
const float max_distance,
const float ray_radius,
const float islands_handling_precision,
const int fromlayers_select[DT_MULTILAYER_INDEX_MAX],
const int tolayers_select[DT_MULTILAYER_INDEX_MAX],
const int mix_mode,
const float mix_factor,
const char *vgroup_name,
const bool invert_vgroup,
ReportList *reports)
{
#define VDATA 0
#define EDATA 1
#define LDATA 2
#define PDATA 3
#define DATAMAX 4
SpaceTransform auto_space_transform;
Mesh *me_src;
/* Assumed always true if not using an evaluated mesh as destination. */
bool dirty_nors_dst = true;
const MDeformVert *mdef = nullptr;
int vg_idx = -1;
float *weights[DATAMAX] = {nullptr};
MeshPairRemap geom_map[DATAMAX] = {{0}};
bool geom_map_init[DATAMAX] = {false};
ListBase lay_map = {nullptr};
bool changed = false;
bool is_modifier = false;
const bool use_delete = false; /* We never delete data layers from destination here. */
CustomData_MeshMasks me_src_mask = CD_MASK_BAREMESH;
BLI_assert((ob_src != ob_dst) && (ob_src->type == OB_MESH) && (ob_dst->type == OB_MESH));
if (me_dst) {
dirty_nors_dst = BKE_mesh_vert_normals_are_dirty(me_dst);
/* Never create needed custom layers on passed destination mesh
* (assumed to *not* be ob_dst->data, aka modifier case). */
use_create = false;
is_modifier = true;
}
else {
me_dst = static_cast<Mesh *>(ob_dst->data);
}
if (vgroup_name) {
mdef = static_cast<const MDeformVert *>(CustomData_get_layer(&me_dst->vdata, CD_MDEFORMVERT));
if (mdef) {
vg_idx = BKE_id_defgroup_name_index(&me_dst->id, vgroup_name);
}
}
/* Get source evaluated mesh. */
BKE_object_data_transfer_dttypes_to_cdmask(data_types, &me_src_mask);
BKE_mesh_remap_calc_source_cddata_masks_from_map_modes(
map_vert_mode, map_edge_mode, map_loop_mode, map_poly_mode, &me_src_mask);
if (is_modifier) {
me_src = BKE_modifier_get_evaluated_mesh_from_evaluated_object(ob_src);
if (me_src == nullptr ||
!CustomData_MeshMasks_are_matching(&ob_src->runtime.last_data_mask, &me_src_mask)) {
CLOG_WARN(&LOG, "Data Transfer: source mesh data is not ready - dependency cycle?");
return changed;
}
}
else {
me_src = mesh_get_eval_final(depsgraph, scene, ob_src, &me_src_mask);
}
if (!me_src) {
return changed;
}
BKE_mesh_wrapper_ensure_mdata(me_src);
if (auto_transform) {
if (space_transform == nullptr) {
space_transform = &auto_space_transform;
}
BKE_mesh_remap_find_best_match_from_mesh(
BKE_mesh_vert_positions(me_dst), me_dst->totvert, me_src, space_transform);
}
/* Check all possible data types.
* Note item mappings and dest mix weights are cached. */
for (int i = 0; i < DT_TYPE_MAX; i++) {
const int dtdata_type = 1 << i;
int cddata_type;
int fromlayers, tolayers, fromto_idx;
if (!(data_types & dtdata_type)) {
continue;
}
data_transfer_dtdata_type_preprocess(me_src, me_dst, dtdata_type, dirty_nors_dst);
cddata_type = BKE_object_data_transfer_dttype_to_cdtype(dtdata_type);
fromto_idx = BKE_object_data_transfer_dttype_to_srcdst_index(dtdata_type);
if (fromto_idx != DT_MULTILAYER_INDEX_INVALID) {
fromlayers = fromlayers_select[fromto_idx];
tolayers = tolayers_select[fromto_idx];
}
else {
fromlayers = tolayers = 0;
}
if (DT_DATATYPE_IS_VERT(dtdata_type)) {
float(*positions_dst)[3] = BKE_mesh_vert_positions_for_write(me_dst);
const int num_verts_dst = me_dst->totvert;
if (!geom_map_init[VDATA]) {
const int num_verts_src = me_src->totvert;
if ((map_vert_mode == MREMAP_MODE_TOPOLOGY) && (num_verts_dst != num_verts_src)) {
BKE_report(reports,
RPT_ERROR,
"Source and destination meshes do not have the same amount of vertices, "
"'Topology' mapping cannot be used in this case");
continue;
}
if ((map_vert_mode & MREMAP_USE_EDGE) && (me_src->totedge == 0)) {
BKE_report(reports,
RPT_ERROR,
"Source mesh doesn't have any edges, "
"None of the 'Edge' mappings can be used in this case");
continue;
}
if ((map_vert_mode & MREMAP_USE_POLY) && (me_src->totpoly == 0)) {
BKE_report(reports,
RPT_ERROR,
"Source mesh doesn't have any faces, "
"None of the 'Face' mappings can be used in this case");
continue;
}
if (ELEM(0, num_verts_dst, num_verts_src)) {
BKE_report(reports,
RPT_ERROR,
"Source or destination meshes do not have any vertices, cannot transfer "
"vertex data");
continue;
}
BKE_mesh_remap_calc_verts_from_mesh(map_vert_mode,
space_transform,
max_distance,
ray_radius,
positions_dst,
num_verts_dst,
dirty_nors_dst,
me_src,
me_dst,
&geom_map[VDATA]);
geom_map_init[VDATA] = true;
}
if (mdef && vg_idx != -1 && !weights[VDATA]) {
weights[VDATA] = static_cast<float *>(
MEM_mallocN(sizeof(*(weights[VDATA])) * size_t(num_verts_dst), __func__));
BKE_defvert_extract_vgroup_to_vertweights(
mdef, vg_idx, num_verts_dst, invert_vgroup, weights[VDATA]);
}
if (data_transfer_layersmapping_generate(&lay_map,
ob_src,
ob_dst,
me_src,
me_dst,
ME_VERT,
cddata_type,
mix_mode,
mix_factor,
weights[VDATA],
num_verts_dst,
use_create,
use_delete,
fromlayers,
tolayers,
space_transform)) {
CustomDataTransferLayerMap *lay_mapit;
changed |= (lay_map.first != nullptr);
for (lay_mapit = static_cast<CustomDataTransferLayerMap *>(lay_map.first); lay_mapit;
lay_mapit = lay_mapit->next) {
CustomData_data_transfer(&geom_map[VDATA], lay_mapit);
}
BLI_freelistN(&lay_map);
}
}
if (DT_DATATYPE_IS_EDGE(dtdata_type)) {
const float(*positions_dst)[3] = BKE_mesh_vert_positions_for_write(me_dst);
const int num_verts_dst = me_dst->totvert;
const blender::Span<MEdge> edges_dst = me_dst->edges();
if (!geom_map_init[EDATA]) {
const int num_edges_src = me_src->totedge;
if ((map_edge_mode == MREMAP_MODE_TOPOLOGY) && (edges_dst.size() != num_edges_src)) {
BKE_report(reports,
RPT_ERROR,
"Source and destination meshes do not have the same amount of edges, "
"'Topology' mapping cannot be used in this case");
continue;
}
if ((map_edge_mode & MREMAP_USE_POLY) && (me_src->totpoly == 0)) {
BKE_report(reports,
RPT_ERROR,
"Source mesh doesn't have any faces, "
"None of the 'Face' mappings can be used in this case");
continue;
}
if (ELEM(0, edges_dst.size(), num_edges_src)) {
BKE_report(
reports,
RPT_ERROR,
"Source or destination meshes do not have any edges, cannot transfer edge data");
continue;
}
BKE_mesh_remap_calc_edges_from_mesh(map_edge_mode,
space_transform,
max_distance,
ray_radius,
positions_dst,
num_verts_dst,
edges_dst.data(),
edges_dst.size(),
dirty_nors_dst,
me_src,
me_dst,
&geom_map[EDATA]);
geom_map_init[EDATA] = true;
}
if (mdef && vg_idx != -1 && !weights[EDATA]) {
weights[EDATA] = static_cast<float *>(
MEM_mallocN(sizeof(*weights[EDATA]) * size_t(edges_dst.size()), __func__));
BKE_defvert_extract_vgroup_to_edgeweights(mdef,
vg_idx,
num_verts_dst,
edges_dst.data(),
edges_dst.size(),
invert_vgroup,
weights[EDATA]);
}
if (data_transfer_layersmapping_generate(&lay_map,
ob_src,
ob_dst,
me_src,
me_dst,
ME_EDGE,
cddata_type,
mix_mode,
mix_factor,
weights[EDATA],
edges_dst.size(),
use_create,
use_delete,
fromlayers,
tolayers,
space_transform)) {
CustomDataTransferLayerMap *lay_mapit;
changed |= (lay_map.first != nullptr);
for (lay_mapit = static_cast<CustomDataTransferLayerMap *>(lay_map.first); lay_mapit;
lay_mapit = lay_mapit->next) {
CustomData_data_transfer(&geom_map[EDATA], lay_mapit);
}
BLI_freelistN(&lay_map);
}
}
if (DT_DATATYPE_IS_LOOP(dtdata_type)) {
const float(*positions_dst)[3] = BKE_mesh_vert_positions(me_dst);
const int num_verts_dst = me_dst->totvert;
const blender::Span<MEdge> edges_dst = me_dst->edges();
const blender::Span<MPoly> polys_dst = me_dst->polys();
const blender::Span<int> corner_verts_dst = me_dst->corner_verts();
const blender::Span<int> corner_edges_dst = me_dst->corner_edges();
CustomData *ldata_dst = &me_dst->ldata;
MeshRemapIslandsCalc island_callback = data_transfer_get_loop_islands_generator(cddata_type);
if (!geom_map_init[LDATA]) {
const int num_loops_src = me_src->totloop;
if ((map_loop_mode == MREMAP_MODE_TOPOLOGY) &&
(corner_verts_dst.size() != num_loops_src)) {
BKE_report(reports,
RPT_ERROR,
"Source and destination meshes do not have the same amount of face corners, "
"'Topology' mapping cannot be used in this case");
continue;
}
if ((map_loop_mode & MREMAP_USE_EDGE) && (me_src->totedge == 0)) {
BKE_report(reports,
RPT_ERROR,
"Source mesh doesn't have any edges, "
"None of the 'Edge' mappings can be used in this case");
continue;
}
if (ELEM(0, corner_verts_dst.size(), num_loops_src)) {
BKE_report(
reports,
RPT_ERROR,
"Source or destination meshes do not have any faces, cannot transfer corner data");
continue;
}
BKE_mesh_remap_calc_loops_from_mesh(map_loop_mode,
space_transform,
max_distance,
ray_radius,
me_dst,
positions_dst,
num_verts_dst,
edges_dst.data(),
edges_dst.size(),
corner_verts_dst.data(),
corner_edges_dst.data(),
corner_verts_dst.size(),
polys_dst.data(),
polys_dst.size(),
ldata_dst,
(me_dst->flag & ME_AUTOSMOOTH) != 0,
me_dst->smoothresh,
dirty_nors_dst,
me_src,
island_callback,
islands_handling_precision,
&geom_map[LDATA]);
geom_map_init[LDATA] = true;
}
if (mdef && vg_idx != -1 && !weights[LDATA]) {
weights[LDATA] = static_cast<float *>(
MEM_mallocN(sizeof(*weights[LDATA]) * size_t(corner_verts_dst.size()), __func__));
BKE_defvert_extract_vgroup_to_loopweights(mdef,
vg_idx,
num_verts_dst,
corner_verts_dst.data(),
corner_verts_dst.size(),
invert_vgroup,
weights[LDATA]);
}
if (data_transfer_layersmapping_generate(&lay_map,
ob_src,
ob_dst,
me_src,
me_dst,
ME_LOOP,
cddata_type,
mix_mode,
mix_factor,
weights[LDATA],
corner_verts_dst.size(),
use_create,
use_delete,
fromlayers,
tolayers,
space_transform)) {
CustomDataTransferLayerMap *lay_mapit;
changed |= (lay_map.first != nullptr);
for (lay_mapit = static_cast<CustomDataTransferLayerMap *>(lay_map.first); lay_mapit;
lay_mapit = lay_mapit->next) {
CustomData_data_transfer(&geom_map[LDATA], lay_mapit);
}
BLI_freelistN(&lay_map);
}
}
if (DT_DATATYPE_IS_POLY(dtdata_type)) {
const float(*positions_dst)[3] = BKE_mesh_vert_positions(me_dst);
const int num_verts_dst = me_dst->totvert;
const blender::Span<MPoly> polys_dst = me_dst->polys();
const blender::Span<int> corner_verts_dst = me_dst->corner_verts();
if (!geom_map_init[PDATA]) {
const int num_polys_src = me_src->totpoly;
if ((map_poly_mode == MREMAP_MODE_TOPOLOGY) && (polys_dst.size() != num_polys_src)) {
BKE_report(reports,
RPT_ERROR,
"Source and destination meshes do not have the same amount of faces, "
"'Topology' mapping cannot be used in this case");
continue;
}
if ((map_poly_mode & MREMAP_USE_EDGE) && (me_src->totedge == 0)) {
BKE_report(reports,
RPT_ERROR,
"Source mesh doesn't have any edges, "
"None of the 'Edge' mappings can be used in this case");
continue;
}
if (ELEM(0, polys_dst.size(), num_polys_src)) {
BKE_report(
reports,
RPT_ERROR,
"Source or destination meshes do not have any faces, cannot transfer face data");
continue;
}
BKE_mesh_remap_calc_polys_from_mesh(map_poly_mode,
space_transform,
max_distance,
ray_radius,
me_dst,
positions_dst,
num_verts_dst,
corner_verts_dst.data(),
polys_dst.data(),
polys_dst.size(),
me_src,
&geom_map[PDATA]);
geom_map_init[PDATA] = true;
}
if (mdef && vg_idx != -1 && !weights[PDATA]) {
weights[PDATA] = static_cast<float *>(
MEM_mallocN(sizeof(*weights[PDATA]) * size_t(polys_dst.size()), __func__));
BKE_defvert_extract_vgroup_to_polyweights(mdef,
vg_idx,
num_verts_dst,
corner_verts_dst.data(),
corner_verts_dst.size(),
polys_dst.data(),
polys_dst.size(),
invert_vgroup,
weights[PDATA]);
}
if (data_transfer_layersmapping_generate(&lay_map,
ob_src,
ob_dst,
me_src,
me_dst,
ME_POLY,
cddata_type,
mix_mode,
mix_factor,
weights[PDATA],
polys_dst.size(),
use_create,
use_delete,
fromlayers,
tolayers,
space_transform)) {
CustomDataTransferLayerMap *lay_mapit;
changed |= (lay_map.first != nullptr);
for (lay_mapit = static_cast<CustomDataTransferLayerMap *>(lay_map.first); lay_mapit;
lay_mapit = lay_mapit->next) {
CustomData_data_transfer(&geom_map[PDATA], lay_mapit);
}
BLI_freelistN(&lay_map);
}
}
data_transfer_dtdata_type_postprocess(ob_src, ob_dst, me_src, me_dst, dtdata_type, changed);
}
for (int i = 0; i < DATAMAX; i++) {
BKE_mesh_remap_free(&geom_map[i]);
MEM_SAFE_FREE(weights[i]);
}
return changed;
#undef VDATA
#undef EDATA
#undef LDATA
#undef PDATA
#undef DATAMAX
}
bool BKE_object_data_transfer_mesh(struct Depsgraph *depsgraph,
Scene *scene,
Object *ob_src,
Object *ob_dst,
const int data_types,
const bool use_create,
const int map_vert_mode,
const int map_edge_mode,
const int map_loop_mode,
const int map_poly_mode,
SpaceTransform *space_transform,
const bool auto_transform,
const float max_distance,
const float ray_radius,
const float islands_handling_precision,
const int fromlayers_select[DT_MULTILAYER_INDEX_MAX],
const int tolayers_select[DT_MULTILAYER_INDEX_MAX],
const int mix_mode,
const float mix_factor,
const char *vgroup_name,
const bool invert_vgroup,
ReportList *reports)
{
return BKE_object_data_transfer_ex(depsgraph,
scene,
ob_src,
ob_dst,
nullptr,
data_types,
use_create,
map_vert_mode,
map_edge_mode,
map_loop_mode,
map_poly_mode,
space_transform,
auto_transform,
max_distance,
ray_radius,
islands_handling_precision,
fromlayers_select,
tolayers_select,
mix_mode,
mix_factor,
vgroup_name,
invert_vgroup,
reports);
}
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