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blender-archive/source/blender/blenkernel/intern/DerivedMesh.c
Campbell Barton 18d06e8d21 Cleanup: style
2019-03-30 07:14:28 +11:00

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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2005 Blender Foundation.
* All rights reserved.
*/
/** \file
* \ingroup bke
*/
#include <string.h>
#include <limits.h>
#include "MEM_guardedalloc.h"
#include "DNA_cloth_types.h"
#include "DNA_customdata_types.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 "DNA_scene_types.h"
#include "BLI_array.h"
#include "BLI_blenlib.h"
#include "BLI_bitmap.h"
#include "BLI_math.h"
#include "BLI_utildefines.h"
#include "BLI_linklist.h"
#include "BLI_task.h"
#include "BKE_cdderivedmesh.h"
#include "BKE_colorband.h"
#include "BKE_editmesh.h"
#include "BKE_key.h"
#include "BKE_layer.h"
#include "BKE_library.h"
#include "BKE_material.h"
#include "BKE_modifier.h"
#include "BKE_mesh.h"
#include "BKE_mesh_iterators.h"
#include "BKE_mesh_mapping.h"
#include "BKE_mesh_runtime.h"
#include "BKE_mesh_tangent.h"
#include "BKE_object.h"
#include "BKE_object_deform.h"
#include "BKE_paint.h"
#include "BKE_multires.h"
#include "BKE_bvhutils.h"
#include "BKE_deform.h"
#include "BLI_sys_types.h" /* for intptr_t support */
#include "DEG_depsgraph.h"
#include "DEG_depsgraph_query.h"
#include "BKE_shrinkwrap.h"
#include "CLG_log.h"
#ifdef WITH_OPENSUBDIV
# include "DNA_userdef_types.h"
#endif
/* very slow! enable for testing only! */
//#define USE_MODIFIER_VALIDATE
#ifdef USE_MODIFIER_VALIDATE
# define ASSERT_IS_VALID_DM(dm) (BLI_assert((dm == NULL) || (DM_is_valid(dm) == true)))
# define ASSERT_IS_VALID_MESH(mesh) (BLI_assert((mesh == NULL) || (BKE_mesh_is_valid(mesh) == true)))
#else
# define ASSERT_IS_VALID_DM(dm)
# define ASSERT_IS_VALID_MESH(mesh)
#endif
static CLG_LogRef LOG = {"bke.derivedmesh"};
static ThreadRWMutex loops_cache_lock = PTHREAD_RWLOCK_INITIALIZER;
static void shapekey_layers_to_keyblocks(DerivedMesh *dm, Mesh *me, int actshape_uid);
static void mesh_init_origspace(Mesh *mesh);
/* -------------------------------------------------------------------- */
static MVert *dm_getVertArray(DerivedMesh *dm)
{
MVert *mvert = CustomData_get_layer(&dm->vertData, CD_MVERT);
if (!mvert) {
mvert = CustomData_add_layer(&dm->vertData, CD_MVERT, CD_CALLOC, NULL,
dm->getNumVerts(dm));
CustomData_set_layer_flag(&dm->vertData, CD_MVERT, CD_FLAG_TEMPORARY);
dm->copyVertArray(dm, mvert);
}
return mvert;
}
static MEdge *dm_getEdgeArray(DerivedMesh *dm)
{
MEdge *medge = CustomData_get_layer(&dm->edgeData, CD_MEDGE);
if (!medge) {
medge = CustomData_add_layer(&dm->edgeData, CD_MEDGE, CD_CALLOC, NULL,
dm->getNumEdges(dm));
CustomData_set_layer_flag(&dm->edgeData, CD_MEDGE, CD_FLAG_TEMPORARY);
dm->copyEdgeArray(dm, medge);
}
return medge;
}
static MFace *dm_getTessFaceArray(DerivedMesh *dm)
{
MFace *mface = CustomData_get_layer(&dm->faceData, CD_MFACE);
if (!mface) {
int numTessFaces = dm->getNumTessFaces(dm);
if (!numTessFaces) {
/* Do not add layer if there's no elements in it, this leads to issues later when
* this layer is needed with non-zero size, but currently CD stuff does not check
* for requested layer size on creation and just returns layer which was previously
* added (sergey) */
return NULL;
}
mface = CustomData_add_layer(&dm->faceData, CD_MFACE, CD_CALLOC, NULL, numTessFaces);
CustomData_set_layer_flag(&dm->faceData, CD_MFACE, CD_FLAG_TEMPORARY);
dm->copyTessFaceArray(dm, mface);
}
return mface;
}
static MLoop *dm_getLoopArray(DerivedMesh *dm)
{
MLoop *mloop = CustomData_get_layer(&dm->loopData, CD_MLOOP);
if (!mloop) {
mloop = CustomData_add_layer(&dm->loopData, CD_MLOOP, CD_CALLOC, NULL,
dm->getNumLoops(dm));
CustomData_set_layer_flag(&dm->loopData, CD_MLOOP, CD_FLAG_TEMPORARY);
dm->copyLoopArray(dm, mloop);
}
return mloop;
}
static MPoly *dm_getPolyArray(DerivedMesh *dm)
{
MPoly *mpoly = CustomData_get_layer(&dm->polyData, CD_MPOLY);
if (!mpoly) {
mpoly = CustomData_add_layer(&dm->polyData, CD_MPOLY, CD_CALLOC, NULL,
dm->getNumPolys(dm));
CustomData_set_layer_flag(&dm->polyData, CD_MPOLY, CD_FLAG_TEMPORARY);
dm->copyPolyArray(dm, mpoly);
}
return mpoly;
}
static MVert *dm_dupVertArray(DerivedMesh *dm)
{
MVert *tmp = MEM_malloc_arrayN(dm->getNumVerts(dm), sizeof(*tmp),
"dm_dupVertArray tmp");
if (tmp) dm->copyVertArray(dm, tmp);
return tmp;
}
static MEdge *dm_dupEdgeArray(DerivedMesh *dm)
{
MEdge *tmp = MEM_malloc_arrayN(dm->getNumEdges(dm), sizeof(*tmp),
"dm_dupEdgeArray tmp");
if (tmp) dm->copyEdgeArray(dm, tmp);
return tmp;
}
static MFace *dm_dupFaceArray(DerivedMesh *dm)
{
MFace *tmp = MEM_malloc_arrayN(dm->getNumTessFaces(dm), sizeof(*tmp),
"dm_dupFaceArray tmp");
if (tmp) dm->copyTessFaceArray(dm, tmp);
return tmp;
}
static MLoop *dm_dupLoopArray(DerivedMesh *dm)
{
MLoop *tmp = MEM_malloc_arrayN(dm->getNumLoops(dm), sizeof(*tmp),
"dm_dupLoopArray tmp");
if (tmp) dm->copyLoopArray(dm, tmp);
return tmp;
}
static MPoly *dm_dupPolyArray(DerivedMesh *dm)
{
MPoly *tmp = MEM_malloc_arrayN(dm->getNumPolys(dm), sizeof(*tmp),
"dm_dupPolyArray tmp");
if (tmp) dm->copyPolyArray(dm, tmp);
return tmp;
}
static int dm_getNumLoopTri(DerivedMesh *dm)
{
const int numlooptris = poly_to_tri_count(dm->getNumPolys(dm), dm->getNumLoops(dm));
BLI_assert(ELEM(dm->looptris.num, 0, numlooptris));
return numlooptris;
}
static const MLoopTri *dm_getLoopTriArray(DerivedMesh *dm)
{
MLoopTri *looptri;
BLI_rw_mutex_lock(&loops_cache_lock, THREAD_LOCK_READ);
looptri = dm->looptris.array;
BLI_rw_mutex_unlock(&loops_cache_lock);
if (looptri != NULL) {
BLI_assert(dm->getNumLoopTri(dm) == dm->looptris.num);
}
else {
BLI_rw_mutex_lock(&loops_cache_lock, THREAD_LOCK_WRITE);
/* We need to ensure array is still NULL inside mutex-protected code, some other thread might have already
* recomputed those looptris. */
if (dm->looptris.array == NULL) {
dm->recalcLoopTri(dm);
}
looptri = dm->looptris.array;
BLI_rw_mutex_unlock(&loops_cache_lock);
}
return looptri;
}
static CustomData *dm_getVertCData(DerivedMesh *dm)
{
return &dm->vertData;
}
static CustomData *dm_getEdgeCData(DerivedMesh *dm)
{
return &dm->edgeData;
}
static CustomData *dm_getTessFaceCData(DerivedMesh *dm)
{
return &dm->faceData;
}
static CustomData *dm_getLoopCData(DerivedMesh *dm)
{
return &dm->loopData;
}
static CustomData *dm_getPolyCData(DerivedMesh *dm)
{
return &dm->polyData;
}
/**
* Utility function to initialize a DerivedMesh's function pointers to
* the default implementation (for those functions which have a default)
*/
void DM_init_funcs(DerivedMesh *dm)
{
/* default function implementations */
dm->getVertArray = dm_getVertArray;
dm->getEdgeArray = dm_getEdgeArray;
dm->getTessFaceArray = dm_getTessFaceArray;
dm->getLoopArray = dm_getLoopArray;
dm->getPolyArray = dm_getPolyArray;
dm->dupVertArray = dm_dupVertArray;
dm->dupEdgeArray = dm_dupEdgeArray;
dm->dupTessFaceArray = dm_dupFaceArray;
dm->dupLoopArray = dm_dupLoopArray;
dm->dupPolyArray = dm_dupPolyArray;
dm->getLoopTriArray = dm_getLoopTriArray;
/* subtypes handle getting actual data */
dm->getNumLoopTri = dm_getNumLoopTri;
dm->getVertDataLayout = dm_getVertCData;
dm->getEdgeDataLayout = dm_getEdgeCData;
dm->getTessFaceDataLayout = dm_getTessFaceCData;
dm->getLoopDataLayout = dm_getLoopCData;
dm->getPolyDataLayout = dm_getPolyCData;
dm->getVertData = DM_get_vert_data;
dm->getEdgeData = DM_get_edge_data;
dm->getTessFaceData = DM_get_tessface_data;
dm->getPolyData = DM_get_poly_data;
dm->getVertDataArray = DM_get_vert_data_layer;
dm->getEdgeDataArray = DM_get_edge_data_layer;
dm->getTessFaceDataArray = DM_get_tessface_data_layer;
dm->getPolyDataArray = DM_get_poly_data_layer;
dm->getLoopDataArray = DM_get_loop_data_layer;
dm->bvhCache = NULL;
}
/**
* Utility function to initialize a DerivedMesh for the desired number
* of vertices, edges and faces (doesn't allocate memory for them, just
* sets up the custom data layers)
*/
void DM_init(
DerivedMesh *dm, DerivedMeshType type, int numVerts, int numEdges,
int numTessFaces, int numLoops, int numPolys)
{
dm->type = type;
dm->numVertData = numVerts;
dm->numEdgeData = numEdges;
dm->numTessFaceData = numTessFaces;
dm->numLoopData = numLoops;
dm->numPolyData = numPolys;
DM_init_funcs(dm);
dm->needsFree = 1;
dm->dirty = 0;
/* don't use CustomData_reset(...); because we dont want to touch customdata */
copy_vn_i(dm->vertData.typemap, CD_NUMTYPES, -1);
copy_vn_i(dm->edgeData.typemap, CD_NUMTYPES, -1);
copy_vn_i(dm->faceData.typemap, CD_NUMTYPES, -1);
copy_vn_i(dm->loopData.typemap, CD_NUMTYPES, -1);
copy_vn_i(dm->polyData.typemap, CD_NUMTYPES, -1);
}
/**
* Utility function to initialize a DerivedMesh for the desired number
* of vertices, edges and faces, with a layer setup copied from source
*/
void DM_from_template_ex(
DerivedMesh *dm, DerivedMesh *source, DerivedMeshType type,
int numVerts, int numEdges, int numTessFaces,
int numLoops, int numPolys,
const CustomData_MeshMasks *mask)
{
CustomData_copy(&source->vertData, &dm->vertData, mask->vmask, CD_CALLOC, numVerts);
CustomData_copy(&source->edgeData, &dm->edgeData, mask->emask, CD_CALLOC, numEdges);
CustomData_copy(&source->faceData, &dm->faceData, mask->fmask, CD_CALLOC, numTessFaces);
CustomData_copy(&source->loopData, &dm->loopData, mask->lmask, CD_CALLOC, numLoops);
CustomData_copy(&source->polyData, &dm->polyData, mask->pmask, CD_CALLOC, numPolys);
dm->cd_flag = source->cd_flag;
dm->type = type;
dm->numVertData = numVerts;
dm->numEdgeData = numEdges;
dm->numTessFaceData = numTessFaces;
dm->numLoopData = numLoops;
dm->numPolyData = numPolys;
DM_init_funcs(dm);
dm->needsFree = 1;
dm->dirty = 0;
}
void DM_from_template(
DerivedMesh *dm, DerivedMesh *source, DerivedMeshType type,
int numVerts, int numEdges, int numTessFaces,
int numLoops, int numPolys)
{
DM_from_template_ex(
dm, source, type,
numVerts, numEdges, numTessFaces,
numLoops, numPolys,
&CD_MASK_DERIVEDMESH);
}
int DM_release(DerivedMesh *dm)
{
if (dm->needsFree) {
bvhcache_free(&dm->bvhCache);
CustomData_free(&dm->vertData, dm->numVertData);
CustomData_free(&dm->edgeData, dm->numEdgeData);
CustomData_free(&dm->faceData, dm->numTessFaceData);
CustomData_free(&dm->loopData, dm->numLoopData);
CustomData_free(&dm->polyData, dm->numPolyData);
if (dm->mat) {
MEM_freeN(dm->mat);
dm->mat = NULL;
dm->totmat = 0;
}
MEM_SAFE_FREE(dm->looptris.array);
dm->looptris.num = 0;
dm->looptris.num_alloc = 0;
return 1;
}
else {
CustomData_free_temporary(&dm->vertData, dm->numVertData);
CustomData_free_temporary(&dm->edgeData, dm->numEdgeData);
CustomData_free_temporary(&dm->faceData, dm->numTessFaceData);
CustomData_free_temporary(&dm->loopData, dm->numLoopData);
CustomData_free_temporary(&dm->polyData, dm->numPolyData);
return 0;
}
}
void DM_DupPolys(DerivedMesh *source, DerivedMesh *target)
{
CustomData_free(&target->loopData, source->numLoopData);
CustomData_free(&target->polyData, source->numPolyData);
CustomData_copy(&source->loopData, &target->loopData, CD_MASK_DERIVEDMESH.lmask, CD_DUPLICATE, source->numLoopData);
CustomData_copy(&source->polyData, &target->polyData, CD_MASK_DERIVEDMESH.pmask, CD_DUPLICATE, source->numPolyData);
target->numLoopData = source->numLoopData;
target->numPolyData = source->numPolyData;
if (!CustomData_has_layer(&target->polyData, CD_MPOLY)) {
MPoly *mpoly;
MLoop *mloop;
mloop = source->dupLoopArray(source);
mpoly = source->dupPolyArray(source);
CustomData_add_layer(&target->loopData, CD_MLOOP, CD_ASSIGN, mloop, source->numLoopData);
CustomData_add_layer(&target->polyData, CD_MPOLY, CD_ASSIGN, mpoly, source->numPolyData);
}
}
void DM_ensure_normals(DerivedMesh *dm)
{
if (dm->dirty & DM_DIRTY_NORMALS) {
dm->calcNormals(dm);
}
BLI_assert((dm->dirty & DM_DIRTY_NORMALS) == 0);
}
/**
* Ensure the array is large enough
*
* \note This function must always be thread-protected by caller. It should only be used by internal code.
*/
void DM_ensure_looptri_data(DerivedMesh *dm)
{
const unsigned int totpoly = dm->numPolyData;
const unsigned int totloop = dm->numLoopData;
const int looptris_num = poly_to_tri_count(totpoly, totloop);
BLI_assert(dm->looptris.array_wip == NULL);
SWAP(MLoopTri *, dm->looptris.array, dm->looptris.array_wip);
if ((looptris_num > dm->looptris.num_alloc) ||
(looptris_num < dm->looptris.num_alloc * 2) ||
(totpoly == 0))
{
MEM_SAFE_FREE(dm->looptris.array_wip);
dm->looptris.num_alloc = 0;
dm->looptris.num = 0;
}
if (totpoly) {
if (dm->looptris.array_wip == NULL) {
dm->looptris.array_wip = MEM_malloc_arrayN(looptris_num, sizeof(*dm->looptris.array_wip), __func__);
dm->looptris.num_alloc = looptris_num;
}
dm->looptris.num = looptris_num;
}
}
void DM_to_mesh(DerivedMesh *dm, Mesh *me, Object *ob, const CustomData_MeshMasks *mask, bool take_ownership)
{
/* dm might depend on me, so we need to do everything with a local copy */
Mesh tmp = *me;
int totvert, totedge /*, totface */ /* UNUSED */, totloop, totpoly;
int did_shapekeys = 0;
eCDAllocType alloctype = CD_DUPLICATE;
if (take_ownership && dm->type == DM_TYPE_CDDM && dm->needsFree) {
bool has_any_referenced_layers =
CustomData_has_referenced(&dm->vertData) ||
CustomData_has_referenced(&dm->edgeData) ||
CustomData_has_referenced(&dm->loopData) ||
CustomData_has_referenced(&dm->faceData) ||
CustomData_has_referenced(&dm->polyData);
if (!has_any_referenced_layers) {
alloctype = CD_ASSIGN;
}
}
CustomData_reset(&tmp.vdata);
CustomData_reset(&tmp.edata);
CustomData_reset(&tmp.fdata);
CustomData_reset(&tmp.ldata);
CustomData_reset(&tmp.pdata);
DM_ensure_normals(dm);
totvert = tmp.totvert = dm->getNumVerts(dm);
totedge = tmp.totedge = dm->getNumEdges(dm);
totloop = tmp.totloop = dm->getNumLoops(dm);
totpoly = tmp.totpoly = dm->getNumPolys(dm);
tmp.totface = 0;
CustomData_copy(&dm->vertData, &tmp.vdata, mask->vmask, alloctype, totvert);
CustomData_copy(&dm->edgeData, &tmp.edata, mask->emask, alloctype, totedge);
CustomData_copy(&dm->loopData, &tmp.ldata, mask->lmask, alloctype, totloop);
CustomData_copy(&dm->polyData, &tmp.pdata, mask->pmask, alloctype, totpoly);
tmp.cd_flag = dm->cd_flag;
tmp.runtime.deformed_only = dm->deformedOnly;
if (CustomData_has_layer(&dm->vertData, CD_SHAPEKEY)) {
KeyBlock *kb;
int uid;
if (ob) {
kb = BLI_findlink(&me->key->block, ob->shapenr - 1);
if (kb) {
uid = kb->uid;
}
else {
CLOG_ERROR(&LOG, "could not find active shapekey %d!", ob->shapenr - 1);
uid = INT_MAX;
}
}
else {
/* if no object, set to INT_MAX so we don't mess up any shapekey layers */
uid = INT_MAX;
}
shapekey_layers_to_keyblocks(dm, me, uid);
did_shapekeys = 1;
}
/* copy texture space */
if (ob) {
BKE_mesh_texspace_copy_from_object(&tmp, ob);
}
/* not all DerivedMeshes store their verts/edges/faces in CustomData, so
* we set them here in case they are missing */
if (!CustomData_has_layer(&tmp.vdata, CD_MVERT)) {
CustomData_add_layer(&tmp.vdata, CD_MVERT, CD_ASSIGN,
(alloctype == CD_ASSIGN) ? dm->getVertArray(dm) : dm->dupVertArray(dm),
totvert);
}
if (!CustomData_has_layer(&tmp.edata, CD_MEDGE)) {
CustomData_add_layer(&tmp.edata, CD_MEDGE, CD_ASSIGN,
(alloctype == CD_ASSIGN) ? dm->getEdgeArray(dm) : dm->dupEdgeArray(dm),
totedge);
}
if (!CustomData_has_layer(&tmp.pdata, CD_MPOLY)) {
tmp.mloop = (alloctype == CD_ASSIGN) ? dm->getLoopArray(dm) : dm->dupLoopArray(dm);
tmp.mpoly = (alloctype == CD_ASSIGN) ? dm->getPolyArray(dm) : dm->dupPolyArray(dm);
CustomData_add_layer(&tmp.ldata, CD_MLOOP, CD_ASSIGN, tmp.mloop, tmp.totloop);
CustomData_add_layer(&tmp.pdata, CD_MPOLY, CD_ASSIGN, tmp.mpoly, tmp.totpoly);
}
/* object had got displacement layer, should copy this layer to save sculpted data */
/* NOTE: maybe some other layers should be copied? nazgul */
if (CustomData_has_layer(&me->ldata, CD_MDISPS)) {
if (totloop == me->totloop) {
MDisps *mdisps = CustomData_get_layer(&me->ldata, CD_MDISPS);
CustomData_add_layer(&tmp.ldata, CD_MDISPS, alloctype, mdisps, totloop);
}
}
/* yes, must be before _and_ after tessellate */
BKE_mesh_update_customdata_pointers(&tmp, false);
/* since 2.65 caller must do! */
// BKE_mesh_tessface_calc(&tmp);
CustomData_free(&me->vdata, me->totvert);
CustomData_free(&me->edata, me->totedge);
CustomData_free(&me->fdata, me->totface);
CustomData_free(&me->ldata, me->totloop);
CustomData_free(&me->pdata, me->totpoly);
/* ok, this should now use new CD shapekey data,
* which should be fed through the modifier
* stack */
if (tmp.totvert != me->totvert && !did_shapekeys && me->key) {
CLOG_WARN(&LOG, "YEEK! this should be recoded! Shape key loss!: ID '%s'", tmp.id.name);
if (tmp.key && !(tmp.id.tag & LIB_TAG_NO_MAIN)) {
id_us_min(&tmp.key->id);
}
tmp.key = NULL;
}
/* Clear selection history */
MEM_SAFE_FREE(tmp.mselect);
tmp.totselect = 0;
BLI_assert(ELEM(tmp.bb, NULL, me->bb));
if (me->bb) {
MEM_freeN(me->bb);
tmp.bb = NULL;
}
/* skip the listbase */
MEMCPY_STRUCT_AFTER(me, &tmp, id.prev);
if (take_ownership) {
if (alloctype == CD_ASSIGN) {
CustomData_free_typemask(&dm->vertData, dm->numVertData, ~mask->vmask);
CustomData_free_typemask(&dm->edgeData, dm->numEdgeData, ~mask->emask);
CustomData_free_typemask(&dm->loopData, dm->numLoopData, ~mask->lmask);
CustomData_free_typemask(&dm->polyData, dm->numPolyData, ~mask->pmask);
}
dm->release(dm);
}
}
/** Utility function to convert an (evaluated) Mesh to a shape key block. */
/* Just a shallow wrapper around BKE_keyblock_convert_from_mesh,
* that ensures both evaluated mesh and original one has same number of vertices. */
void BKE_mesh_runtime_eval_to_meshkey(Mesh *me_deformed, Mesh *me, KeyBlock *kb)
{
const int totvert = me_deformed->totvert;
if (totvert == 0 || me->totvert == 0 || me->totvert != totvert) {
return;
}
BKE_keyblock_convert_from_mesh(me_deformed, me->key, kb);
}
/**
* set the CD_FLAG_NOCOPY flag in custom data layers where the mask is
* zero for the layer type, so only layer types specified by the mask
* will be copied
*/
void DM_set_only_copy(DerivedMesh *dm, const CustomData_MeshMasks *mask)
{
CustomData_set_only_copy(&dm->vertData, mask->vmask);
CustomData_set_only_copy(&dm->edgeData, mask->emask);
CustomData_set_only_copy(&dm->faceData, mask->fmask);
/* this wasn't in 2.63 and is disabled for 2.64 because it gives problems with
* weight paint mode when there are modifiers applied, needs further investigation,
* see replies to r50969, Campbell */
#if 0
CustomData_set_only_copy(&dm->loopData, mask->lmask);
CustomData_set_only_copy(&dm->polyData, mask->pmask);
#endif
}
static void mesh_set_only_copy(Mesh *mesh, const CustomData_MeshMasks *mask)
{
CustomData_set_only_copy(&mesh->vdata, mask->vmask);
CustomData_set_only_copy(&mesh->edata, mask->emask);
CustomData_set_only_copy(&mesh->fdata, mask->fmask);
/* this wasn't in 2.63 and is disabled for 2.64 because it gives problems with
* weight paint mode when there are modifiers applied, needs further investigation,
* see replies to r50969, Campbell */
#if 0
CustomData_set_only_copy(&mesh->ldata, mask->lmask);
CustomData_set_only_copy(&mesh->pdata, mask->pmask);
#endif
}
void DM_add_vert_layer(DerivedMesh *dm, int type, eCDAllocType alloctype, void *layer)
{
CustomData_add_layer(&dm->vertData, type, alloctype, layer, dm->numVertData);
}
void DM_add_edge_layer(DerivedMesh *dm, int type, eCDAllocType alloctype, void *layer)
{
CustomData_add_layer(&dm->edgeData, type, alloctype, layer, dm->numEdgeData);
}
void DM_add_tessface_layer(DerivedMesh *dm, int type, eCDAllocType alloctype, void *layer)
{
CustomData_add_layer(&dm->faceData, type, alloctype, layer, dm->numTessFaceData);
}
void DM_add_loop_layer(DerivedMesh *dm, int type, eCDAllocType alloctype, void *layer)
{
CustomData_add_layer(&dm->loopData, type, alloctype, layer, dm->numLoopData);
}
void DM_add_poly_layer(DerivedMesh *dm, int type, eCDAllocType alloctype, void *layer)
{
CustomData_add_layer(&dm->polyData, type, alloctype, layer, dm->numPolyData);
}
void *DM_get_vert_data(DerivedMesh *dm, int index, int type)
{
BLI_assert(index >= 0 && index < dm->getNumVerts(dm));
return CustomData_get(&dm->vertData, index, type);
}
void *DM_get_edge_data(DerivedMesh *dm, int index, int type)
{
BLI_assert(index >= 0 && index < dm->getNumEdges(dm));
return CustomData_get(&dm->edgeData, index, type);
}
void *DM_get_tessface_data(DerivedMesh *dm, int index, int type)
{
BLI_assert(index >= 0 && index < dm->getNumTessFaces(dm));
return CustomData_get(&dm->faceData, index, type);
}
void *DM_get_poly_data(DerivedMesh *dm, int index, int type)
{
BLI_assert(index >= 0 && index < dm->getNumPolys(dm));
return CustomData_get(&dm->polyData, index, type);
}
void *DM_get_vert_data_layer(DerivedMesh *dm, int type)
{
if (type == CD_MVERT)
return dm->getVertArray(dm);
return CustomData_get_layer(&dm->vertData, type);
}
void *DM_get_edge_data_layer(DerivedMesh *dm, int type)
{
if (type == CD_MEDGE)
return dm->getEdgeArray(dm);
return CustomData_get_layer(&dm->edgeData, type);
}
void *DM_get_tessface_data_layer(DerivedMesh *dm, int type)
{
if (type == CD_MFACE)
return dm->getTessFaceArray(dm);
return CustomData_get_layer(&dm->faceData, type);
}
void *DM_get_poly_data_layer(DerivedMesh *dm, int type)
{
return CustomData_get_layer(&dm->polyData, type);
}
void *DM_get_loop_data_layer(DerivedMesh *dm, int type)
{
return CustomData_get_layer(&dm->loopData, type);
}
void DM_copy_vert_data(DerivedMesh *source, DerivedMesh *dest,
int source_index, int dest_index, int count)
{
CustomData_copy_data(&source->vertData, &dest->vertData,
source_index, dest_index, count);
}
/**
* interpolates vertex data from the vertices indexed by src_indices in the
* source mesh using the given weights and stores the result in the vertex
* indexed by dest_index in the dest mesh
*/
void DM_interp_vert_data(
DerivedMesh *source, DerivedMesh *dest,
int *src_indices, float *weights,
int count, int dest_index)
{
CustomData_interp(&source->vertData, &dest->vertData, src_indices,
weights, NULL, count, dest_index);
}
DerivedMesh *mesh_create_derived(Mesh *me, float (*vertCos)[3])
{
DerivedMesh *dm = CDDM_from_mesh(me);
if (!dm)
return NULL;
if (vertCos) {
CDDM_apply_vert_coords(dm, vertCos);
}
return dm;
}
static float (*get_editbmesh_orco_verts(BMEditMesh *em))[3]
{
BMIter iter;
BMVert *eve;
float (*orco)[3];
int i;
/* these may not really be the orco's, but it's only for preview.
* could be solver better once, but isn't simple */
orco = MEM_malloc_arrayN(em->bm->totvert, sizeof(float) * 3, "BMEditMesh Orco");
BM_ITER_MESH_INDEX (eve, &iter, em->bm, BM_VERTS_OF_MESH, i) {
copy_v3_v3(orco[i], eve->co);
}
return orco;
}
/* orco custom data layer */
static float (*get_orco_coords(Object *ob, BMEditMesh *em, int layer, int *free))[3]
{
*free = 0;
if (layer == CD_ORCO) {
/* get original coordinates */
*free = 1;
if (em)
return get_editbmesh_orco_verts(em);
else
return BKE_mesh_orco_verts_get(ob);
}
else if (layer == CD_CLOTH_ORCO) {
/* apply shape key for cloth, this should really be solved
* by a more flexible customdata system, but not simple */
if (!em) {
ClothModifierData *clmd = (ClothModifierData *)modifiers_findByType(ob, eModifierType_Cloth);
KeyBlock *kb = BKE_keyblock_from_key(BKE_key_from_object(ob), clmd->sim_parms->shapekey_rest);
if (kb && kb->data) {
return kb->data;
}
}
return NULL;
}
return NULL;
}
static Mesh *create_orco_mesh(Object *ob, Mesh *me, BMEditMesh *em, int layer)
{
Mesh *mesh;
float (*orco)[3];
int free;
if (em) {
mesh = BKE_mesh_from_bmesh_for_eval_nomain(em->bm, NULL);
}
else {
mesh = BKE_mesh_copy_for_eval(me, true);
}
orco = get_orco_coords(ob, em, layer, &free);
if (orco) {
BKE_mesh_apply_vert_coords(mesh, orco);
if (free) MEM_freeN(orco);
}
return mesh;
}
static void add_orco_mesh(
Object *ob, BMEditMesh *em, Mesh *mesh,
Mesh *mesh_orco, int layer)
{
float (*orco)[3], (*layerorco)[3];
int totvert, free;
totvert = mesh->totvert;
if (mesh_orco) {
free = 1;
if (mesh_orco->totvert == totvert) {
orco = BKE_mesh_vertexCos_get(mesh_orco, NULL);
}
else {
orco = BKE_mesh_vertexCos_get(mesh, NULL);
}
}
else {
/* TODO(sybren): totvert should potentially change here, as ob->data
* or em may have a different number of vertices than dm. */
orco = get_orco_coords(ob, em, layer, &free);
}
if (orco) {
if (layer == CD_ORCO) {
BKE_mesh_orco_verts_transform(ob->data, orco, totvert, 0);
}
if (!(layerorco = CustomData_get_layer(&mesh->vdata, layer))) {
CustomData_add_layer(&mesh->vdata, layer, CD_CALLOC, NULL, mesh->totvert);
BKE_mesh_update_customdata_pointers(mesh, false);
layerorco = CustomData_get_layer(&mesh->vdata, layer);
}
memcpy(layerorco, orco, sizeof(float) * 3 * totvert);
if (free) MEM_freeN(orco);
}
}
static void editmesh_update_statvis_color(const Scene *scene, Object *ob)
{
BMEditMesh *em = BKE_editmesh_from_object(ob);
Mesh *me = ob->data;
BKE_mesh_runtime_ensure_edit_data(me);
BKE_editmesh_statvis_calc(em, me->runtime.edit_data, &scene->toolsettings->statvis);
}
static void shapekey_layers_to_keyblocks(DerivedMesh *dm, Mesh *me, int actshape_uid)
{
KeyBlock *kb;
int i, j, tot;
if (!me->key)
return;
tot = CustomData_number_of_layers(&dm->vertData, CD_SHAPEKEY);
for (i = 0; i < tot; i++) {
CustomDataLayer *layer = &dm->vertData.layers[CustomData_get_layer_index_n(&dm->vertData, CD_SHAPEKEY, i)];
float (*cos)[3], (*kbcos)[3];
for (kb = me->key->block.first; kb; kb = kb->next) {
if (kb->uid == layer->uid)
break;
}
if (!kb) {
kb = BKE_keyblock_add(me->key, layer->name);
kb->uid = layer->uid;
}
if (kb->data)
MEM_freeN(kb->data);
cos = CustomData_get_layer_n(&dm->vertData, CD_SHAPEKEY, i);
kb->totelem = dm->numVertData;
kb->data = kbcos = MEM_malloc_arrayN(kb->totelem, 3 * sizeof(float), "kbcos DerivedMesh.c");
if (kb->uid == actshape_uid) {
MVert *mvert = dm->getVertArray(dm);
for (j = 0; j < dm->numVertData; j++, kbcos++, mvert++) {
copy_v3_v3(*kbcos, mvert->co);
}
}
else {
for (j = 0; j < kb->totelem; j++, cos++, kbcos++) {
copy_v3_v3(*kbcos, *cos);
}
}
}
for (kb = me->key->block.first; kb; kb = kb->next) {
if (kb->totelem != dm->numVertData) {
if (kb->data)
MEM_freeN(kb->data);
kb->totelem = dm->numVertData;
kb->data = MEM_calloc_arrayN(kb->totelem, 3 * sizeof(float), "kb->data derivedmesh.c");
CLOG_ERROR(&LOG, "lost a shapekey layer: '%s'! (bmesh internal error)", kb->name);
}
}
}
static void mesh_copy_autosmooth(Mesh *me, Mesh *me_orig)
{
if (me_orig->flag & ME_AUTOSMOOTH) {
me->flag |= ME_AUTOSMOOTH;
me->smoothresh = me_orig->smoothresh;
}
}
static void mesh_calc_modifier_final_normals(
const Mesh *mesh_input,
const CustomData_MeshMasks *dataMask,
const bool sculpt_dyntopo,
Mesh *mesh_final)
{
/* Compute normals. */
const bool do_loop_normals = ((mesh_input->flag & ME_AUTOSMOOTH) != 0 ||
(dataMask->lmask & CD_MASK_NORMAL) != 0);
/* Some modifiers may need this info from their target (other) object, simpler to generate it here as well.
* Note that they will always be generated when no loop normals are comptuted,
* since they are needed by drawing code. */
const bool do_poly_normals = ((dataMask->pmask & CD_MASK_NORMAL) != 0);
if (do_loop_normals) {
/* In case we also need poly normals, add the layer here, then BKE_mesh_calc_normals_split() will fill it. */
if (do_poly_normals) {
if (!CustomData_has_layer(&mesh_final->pdata, CD_NORMAL)) {
CustomData_add_layer(&mesh_final->pdata, CD_NORMAL, CD_CALLOC, NULL, mesh_final->totpoly);
}
}
/* Compute loop normals (note: will compute poly and vert normals as well, if needed!) */
BKE_mesh_calc_normals_split(mesh_final);
BKE_mesh_tessface_clear(mesh_final);
}
if (sculpt_dyntopo == false) {
/* watch this! after 2.75a we move to from tessface to looptri (by default) */
if (dataMask->fmask & CD_MASK_MFACE) {
BKE_mesh_tessface_ensure(mesh_final);
}
/* without this, drawing ngon tri's faces will show ugly tessellated face
* normals and will also have to calculate normals on the fly, try avoid
* this where possible since calculating polygon normals isn't fast,
* note that this isn't a problem for subsurf (only quads) or editmode
* which deals with drawing differently.
*
* Only calc vertex normals if they are flagged as dirty.
* If using loop normals, poly nors have already been computed.
*/
if (!do_loop_normals) {
BKE_mesh_ensure_normals_for_display(mesh_final);
}
}
/* Some modifiers, like datatransfer, may generate those data as temp layer, we do not want to keep them,
* as they are used by display code when available (i.e. even if autosmooth is disabled). */
if (!do_loop_normals && CustomData_has_layer(&mesh_final->ldata, CD_NORMAL)) {
CustomData_free_layers(&mesh_final->ldata, CD_NORMAL, mesh_final->totloop);
}
}
static void mesh_calc_modifiers(
struct Depsgraph *depsgraph,
Scene *scene, Object *ob,
int useDeform,
const bool need_mapping,
const CustomData_MeshMasks *dataMask,
const int index,
const bool use_cache,
/* return args */
Mesh **r_deform,
Mesh **r_final)
{
/* Input and final mesh. Final mesh is only created the moment the first
* constructive modifier is executed, or a deform modifier needs normals
* or certain data layers. */
Mesh *mesh_input = ob->data;
Mesh *mesh_final = NULL;
Mesh *mesh_deform = NULL;
BLI_assert((mesh_input->id.tag & LIB_TAG_COPIED_ON_WRITE_EVAL_RESULT) == 0);
/* Deformed vertex locations array. Deform only modifier need this type of
* float array rather than MVert*. Tracked along with mesh_final as an
* optimization to avoid copying coordinates back and forth if there are
* multiple sequential deform only modifiers. */
float (*deformed_verts)[3] = NULL;
int num_deformed_verts = mesh_input->totvert;
bool isPrevDeform = false;
/* Mesh with constructive modifiers but no deformation applied. Tracked
* along with final mesh if undeformed / orco coordinates are requested
* for texturing. */
Mesh *mesh_orco = NULL;
Mesh *mesh_orco_cloth = NULL;
/* Modifier evaluation modes. */
const bool use_render = (DEG_get_mode(depsgraph) == DAG_EVAL_RENDER);
const int required_mode = use_render ? eModifierMode_Render : eModifierMode_Realtime;
/* Sculpt can skip certain modifiers. */
MultiresModifierData *mmd = get_multires_modifier(scene, ob, 0);
const bool has_multires = (mmd && mmd->sculptlvl != 0);
bool multires_applied = false;
const bool sculpt_mode = ob->mode & OB_MODE_SCULPT && ob->sculpt && !use_render;
const bool sculpt_dyntopo = (sculpt_mode && ob->sculpt->bm) && !use_render;
/* Modifier evaluation contexts for different types of modifiers. */
ModifierApplyFlag app_render = use_render ? MOD_APPLY_RENDER : 0;
ModifierApplyFlag app_cache = use_cache ? MOD_APPLY_USECACHE : 0;
const ModifierEvalContext mectx = {depsgraph, ob, app_render | app_cache};
const ModifierEvalContext mectx_orco = {depsgraph, ob, app_render | MOD_APPLY_ORCO};
/* Get effective list of modifiers to execute. Some effects like shape keys
* are added as virtual modifiers before the user created modifiers. */
VirtualModifierData virtualModifierData;
ModifierData *firstmd = modifiers_getVirtualModifierList(ob, &virtualModifierData);
ModifierData *md = firstmd;
/* Preview colors by modifiers such as dynamic paint, to show the results
* even if the resulting data is not used in a material. Only in object mode.
* TODO: this is broken, not drawn by the drawn manager. */
const bool do_mod_mcol = (ob->mode == OB_MODE_OBJECT);
ModifierData *previewmd = NULL;
CustomData_MeshMasks previewmask = {0};
if (do_mod_mcol) {
/* Find the last active modifier generating a preview, or NULL if none. */
/* XXX Currently, DPaint modifier just ignores this.
* Needs a stupid hack...
* The whole "modifier preview" thing has to be (re?)designed, anyway! */
previewmd = modifiers_getLastPreview(scene, md, required_mode);
}
/* Compute accumulated datamasks needed by each modifier. It helps to do
* this fine grained so that for example vertex groups are preserved up to
* an armature modifier, but not through a following subsurf modifier where
* subdividing them is expensive. */
CDMaskLink *datamasks = modifiers_calcDataMasks(scene, ob, md, dataMask, required_mode, previewmd, &previewmask);
CDMaskLink *md_datamask = datamasks;
/* XXX Always copying POLYINDEX, else tessellated data are no more valid! */
CustomData_MeshMasks append_mask = CD_MASK_BAREMESH_ORIGINDEX;
/* Clear errors before evaluation. */
modifiers_clearErrors(ob);
/* Apply all leading deform modifiers. */
if (useDeform) {
for (; md; md = md->next, md_datamask = md_datamask->next) {
const ModifierTypeInfo *mti = modifierType_getInfo(md->type);
if (!modifier_isEnabled(scene, md, required_mode)) {
continue;
}
if (useDeform < 0 && mti->dependsOnTime && mti->dependsOnTime(md)) {
continue;
}
if (mti->type == eModifierTypeType_OnlyDeform && !sculpt_dyntopo) {
if (!deformed_verts) {
deformed_verts = BKE_mesh_vertexCos_get(mesh_input, &num_deformed_verts);
}
else if (isPrevDeform && mti->dependsOnNormals && mti->dependsOnNormals(md)) {
if (mesh_final == NULL) {
mesh_final = BKE_mesh_copy_for_eval(mesh_input, true);
ASSERT_IS_VALID_MESH(mesh_final);
}
BKE_mesh_apply_vert_coords(mesh_final, deformed_verts);
}
modwrap_deformVerts(md, &mectx, mesh_final, deformed_verts, num_deformed_verts);
isPrevDeform = true;
}
else {
break;
}
/* grab modifiers until index i */
if ((index != -1) && (BLI_findindex(&ob->modifiers, md) >= index))
break;
}
/* Result of all leading deforming modifiers is cached for
* places that wish to use the original mesh but with deformed
* coordinates (like vertex paint). */
if (r_deform) {
mesh_deform = BKE_mesh_copy_for_eval(mesh_input, true);
if (deformed_verts) {
BKE_mesh_apply_vert_coords(mesh_deform, deformed_verts);
}
}
}
/* Apply all remaining constructive and deforming modifiers. */
for (; md; md = md->next, md_datamask = md_datamask->next) {
const ModifierTypeInfo *mti = modifierType_getInfo(md->type);
if (!modifier_isEnabled(scene, md, required_mode)) {
continue;
}
if (mti->type == eModifierTypeType_OnlyDeform && !useDeform) {
continue;
}
if ((mti->flags & eModifierTypeFlag_RequiresOriginalData) && mesh_final) {
modifier_setError(md, "Modifier requires original data, bad stack position");
continue;
}
if (sculpt_mode &&
(!has_multires || multires_applied || sculpt_dyntopo))
{
bool unsupported = false;
if (md->type == eModifierType_Multires && ((MultiresModifierData *)md)->sculptlvl == 0) {
/* If multires is on level 0 skip it silently without warning message. */
if (!sculpt_dyntopo) {
continue;
}
}
if (sculpt_dyntopo)
unsupported = true;
if (scene->toolsettings->sculpt->flags & SCULPT_ONLY_DEFORM)
unsupported |= (mti->type != eModifierTypeType_OnlyDeform);
unsupported |= multires_applied;
if (unsupported) {
if (sculpt_dyntopo)
modifier_setError(md, "Not supported in dyntopo");
else
modifier_setError(md, "Not supported in sculpt mode");
continue;
}
else {
modifier_setError(md, "Hide, Mask and optimized display disabled");
}
}
if (need_mapping && !modifier_supportsMapping(md)) {
continue;
}
if (useDeform < 0 && mti->dependsOnTime && mti->dependsOnTime(md)) {
continue;
}
/* Add an orco layer if needed by this modifier. */
if (mesh_final && mti->requiredDataMask) {
CustomData_MeshMasks mask = {0};
mti->requiredDataMask(ob, md, &mask);
if (mask.vmask & CD_MASK_ORCO) {
add_orco_mesh(ob, NULL, mesh_final, mesh_orco, CD_ORCO);
}
}
/* How to apply modifier depends on (a) what we already have as
* a result of previous modifiers (could be a Mesh or just
* deformed vertices) and (b) what type the modifier is. */
if (mti->type == eModifierTypeType_OnlyDeform) {
/* No existing verts to deform, need to build them. */
if (!deformed_verts) {
if (mesh_final) {
/* Deforming a mesh, read the vertex locations
* out of the mesh and deform them. Once done with this
* run of deformers verts will be written back. */
deformed_verts = BKE_mesh_vertexCos_get(mesh_final, &num_deformed_verts);
}
else {
deformed_verts = BKE_mesh_vertexCos_get(mesh_input, &num_deformed_verts);
}
}
/* if this is not the last modifier in the stack then recalculate the normals
* to avoid giving bogus normals to the next modifier see: [#23673] */
else if (isPrevDeform && mti->dependsOnNormals && mti->dependsOnNormals(md)) {
/* XXX, this covers bug #23673, but we may need normal calc for other types */
if (mesh_final) {
BKE_mesh_apply_vert_coords(mesh_final, deformed_verts);
}
}
modwrap_deformVerts(md, &mectx, mesh_final, deformed_verts, num_deformed_verts);
}
else {
/* determine which data layers are needed by following modifiers */
CustomData_MeshMasks nextmask;
if (md_datamask->next)
nextmask = md_datamask->next->mask;
else
nextmask = *dataMask;
/* apply vertex coordinates or build a Mesh as necessary */
if (mesh_final) {
if (deformed_verts) {
BKE_mesh_apply_vert_coords(mesh_final, deformed_verts);
}
}
else {
mesh_final = BKE_mesh_copy_for_eval(mesh_input, true);
ASSERT_IS_VALID_MESH(mesh_final);
if (deformed_verts) {
BKE_mesh_apply_vert_coords(mesh_final, deformed_verts);
}
/* Initialize original indices the first time we evaluate a
* constructive modifier. Modifiers will then do mapping mostly
* automatic by copying them through CustomData_copy_data along
* with other data.
*
* These are created when either requested by evaluation, or if
* following modifiers requested them. */
if (need_mapping || ((nextmask.vmask | nextmask.emask | nextmask.pmask) & CD_MASK_ORIGINDEX)) {
/* calc */
CustomData_add_layer(&mesh_final->vdata, CD_ORIGINDEX, CD_CALLOC, NULL, mesh_final->totvert);
CustomData_add_layer(&mesh_final->edata, CD_ORIGINDEX, CD_CALLOC, NULL, mesh_final->totedge);
CustomData_add_layer(&mesh_final->pdata, CD_ORIGINDEX, CD_CALLOC, NULL, mesh_final->totpoly);
/* Not worth parallelizing this, gives less than 0.1% overall speedup in best of best cases... */
range_vn_i(CustomData_get_layer(&mesh_final->vdata, CD_ORIGINDEX), mesh_final->totvert, 0);
range_vn_i(CustomData_get_layer(&mesh_final->edata, CD_ORIGINDEX), mesh_final->totedge, 0);
range_vn_i(CustomData_get_layer(&mesh_final->pdata, CD_ORIGINDEX), mesh_final->totpoly, 0);
}
}
/* set the Mesh to only copy needed data */
CustomData_MeshMasks mask = md_datamask->mask;
/* needMapping check here fixes bug [#28112], otherwise it's
* possible that it won't be copied */
CustomData_MeshMasks_update(&mask, &append_mask);
if (need_mapping) {
mask.vmask |= CD_MASK_ORIGINDEX;
mask.emask |= CD_MASK_ORIGINDEX;
mask.pmask |= CD_MASK_ORIGINDEX;
}
mesh_set_only_copy(mesh_final, &mask);
/* add cloth rest shape key if needed */
if (mask.vmask & CD_MASK_CLOTH_ORCO) {
add_orco_mesh(ob, NULL, mesh_final, mesh_orco, CD_CLOTH_ORCO);
}
/* add an origspace layer if needed */
if ((md_datamask->mask.lmask) & CD_MASK_ORIGSPACE_MLOOP) {
if (!CustomData_has_layer(&mesh_final->ldata, CD_ORIGSPACE_MLOOP)) {
CustomData_add_layer(&mesh_final->ldata, CD_ORIGSPACE_MLOOP, CD_CALLOC, NULL, mesh_final->totloop);
mesh_init_origspace(mesh_final);
}
}
Mesh *mesh_next = modwrap_applyModifier(md, &mectx, mesh_final);
ASSERT_IS_VALID_MESH(mesh_next);
if (mesh_next) {
/* if the modifier returned a new mesh, release the old one */
if (mesh_final != mesh_next) {
BLI_assert(mesh_final != mesh_input);
BKE_id_free(NULL, mesh_final);
}
mesh_final = mesh_next;
if (deformed_verts) {
MEM_freeN(deformed_verts);
deformed_verts = NULL;
}
mesh_copy_autosmooth(mesh_final, mesh_input);
}
/* create an orco mesh in parallel */
if (nextmask.vmask & CD_MASK_ORCO) {
if (!mesh_orco) {
mesh_orco = create_orco_mesh(ob, mesh_input, NULL, CD_ORCO);
}
nextmask.vmask &= ~CD_MASK_ORCO;
CustomData_MeshMasks temp_cddata_masks = {
.vmask = CD_MASK_ORIGINDEX,
.emask = CD_MASK_ORIGINDEX,
.fmask = CD_MASK_ORIGINDEX,
.pmask = CD_MASK_ORIGINDEX,
};
if (mti->requiredDataMask != NULL) {
mti->requiredDataMask(ob, md, &temp_cddata_masks);
}
CustomData_MeshMasks_update(&temp_cddata_masks, &nextmask);
mesh_set_only_copy(mesh_orco, &temp_cddata_masks);
mesh_next = modwrap_applyModifier(md, &mectx_orco, mesh_orco);
ASSERT_IS_VALID_MESH(mesh_next);
if (mesh_next) {
/* if the modifier returned a new mesh, release the old one */
if (mesh_orco != mesh_next) {
BLI_assert(mesh_orco != mesh_input);
BKE_id_free(NULL, mesh_orco);
}
mesh_orco = mesh_next;
}
}
/* create cloth orco mesh in parallel */
if (nextmask.vmask & CD_MASK_CLOTH_ORCO) {
if (!mesh_orco_cloth) {
mesh_orco_cloth = create_orco_mesh(ob, mesh_input, NULL, CD_CLOTH_ORCO);
}
nextmask.vmask &= ~CD_MASK_CLOTH_ORCO;
nextmask.vmask |= CD_MASK_ORIGINDEX;
nextmask.emask |= CD_MASK_ORIGINDEX;
nextmask.pmask |= CD_MASK_ORIGINDEX;
mesh_set_only_copy(mesh_orco_cloth, &nextmask);
mesh_next = modwrap_applyModifier(md, &mectx_orco, mesh_orco_cloth);
ASSERT_IS_VALID_MESH(mesh_next);
if (mesh_next) {
/* if the modifier returned a new mesh, release the old one */
if (mesh_orco_cloth != mesh_next) {
BLI_assert(mesh_orco != mesh_input);
BKE_id_free(NULL, mesh_orco_cloth);
}
mesh_orco_cloth = mesh_next;
}
}
/* in case of dynamic paint, make sure preview mask remains for following modifiers */
/* XXX Temp and hackish solution! */
if (md->type == eModifierType_DynamicPaint) {
append_mask.lmask |= CD_MASK_PREVIEW_MLOOPCOL;
}
mesh_final->runtime.deformed_only = false;
}
isPrevDeform = (mti->type == eModifierTypeType_OnlyDeform);
/* grab modifiers until index i */
if ((index != -1) && (BLI_findindex(&ob->modifiers, md) >= index))
break;
if (sculpt_mode && md->type == eModifierType_Multires) {
multires_applied = true;
}
}
BLI_linklist_free((LinkNode *)datamasks, NULL);
for (md = firstmd; md; md = md->next)
modifier_freeTemporaryData(md);
/* Yay, we are done. If we have a Mesh and deformed vertices
* need to apply these back onto the Mesh. If we have no
* Mesh then we need to build one. */
if (mesh_final == NULL) {
mesh_final = BKE_mesh_copy_for_eval(mesh_input, true);
}
if (deformed_verts) {
BKE_mesh_apply_vert_coords(mesh_final, deformed_verts);
MEM_freeN(deformed_verts);
deformed_verts = NULL;
}
/* Add orco coordinates to final and deformed mesh if requested. */
if (dataMask->vmask & CD_MASK_ORCO) {
add_orco_mesh(ob, NULL, mesh_final, mesh_orco, CD_ORCO);
if (mesh_deform)
add_orco_mesh(ob, NULL, mesh_deform, NULL, CD_ORCO);
}
if (mesh_orco) {
BKE_id_free(NULL, mesh_orco);
}
if (mesh_orco_cloth) {
BKE_id_free(NULL, mesh_orco_cloth);
}
/* Compute normals. */
mesh_calc_modifier_final_normals(mesh_input, dataMask, sculpt_dyntopo, mesh_final);
/* Return final mesh */
*r_final = mesh_final;
if (r_deform) {
*r_deform = mesh_deform;
}
}
float (*editbmesh_get_vertex_cos(BMEditMesh *em, int *r_numVerts))[3]
{
BMIter iter;
BMVert *eve;
float (*cos)[3];
int i;
*r_numVerts = em->bm->totvert;
cos = MEM_malloc_arrayN(em->bm->totvert, 3 * sizeof(float), "vertexcos");
BM_ITER_MESH_INDEX (eve, &iter, em->bm, BM_VERTS_OF_MESH, i) {
copy_v3_v3(cos[i], eve->co);
}
return cos;
}
bool editbmesh_modifier_is_enabled(Scene *scene, ModifierData *md, bool has_prev_mesh)
{
const ModifierTypeInfo *mti = modifierType_getInfo(md->type);
const int required_mode = eModifierMode_Realtime | eModifierMode_Editmode;
if (!modifier_isEnabled(scene, md, required_mode)) {
return false;
}
if ((mti->flags & eModifierTypeFlag_RequiresOriginalData) && has_prev_mesh) {
modifier_setError(md, "Modifier requires original data, bad stack position");
return false;
}
return true;
}
static void editbmesh_calc_modifier_final_normals(
const Mesh *mesh_input,
const CustomData_MeshMasks *dataMask,
Mesh *mesh_final)
{
const bool do_loop_normals = ((mesh_input->flag & ME_AUTOSMOOTH) != 0 ||
(dataMask->lmask & CD_MASK_NORMAL) != 0);
/* Some modifiers may need this info from their target (other) object, simpler to generate it here as well. */
const bool do_poly_normals = ((dataMask->pmask & CD_MASK_NORMAL) != 0);
if (do_loop_normals) {
/* In case we also need poly normals, add the layer here, then BKE_mesh_calc_normals_split() will fill it. */
if (do_poly_normals) {
if (!CustomData_has_layer(&mesh_final->pdata, CD_NORMAL)) {
CustomData_add_layer(&mesh_final->pdata, CD_NORMAL, CD_CALLOC, NULL, mesh_final->totpoly);
}
}
/* Compute loop normals */
BKE_mesh_calc_normals_split(mesh_final);
BKE_mesh_tessface_clear(mesh_final);
}
/* BMESH_ONLY, ensure tessface's used for drawing,
* but don't recalculate if the last modifier in the stack gives us tessfaces
* check if the derived meshes are DM_TYPE_EDITBMESH before calling, this isn't essential
* but quiets annoying error messages since tessfaces wont be created. */
if (dataMask->fmask & CD_MASK_MFACE) {
if (mesh_final->edit_mesh == NULL) {
BKE_mesh_tessface_ensure(mesh_final);
}
}
/* same as mesh_calc_modifiers (if using loop normals, poly nors have already been computed). */
if (!do_loop_normals) {
BKE_mesh_ensure_normals_for_display(mesh_final);
/* Some modifiers, like datatransfer, may generate those data, we do not want to keep them,
* as they are used by display code when available (i.e. even if autosmooth is disabled). */
if (CustomData_has_layer(&mesh_final->ldata, CD_NORMAL)) {
CustomData_free_layers(&mesh_final->ldata, CD_NORMAL, mesh_final->totloop);
}
}
}
static void editbmesh_calc_modifiers(
struct Depsgraph *depsgraph,
Scene *scene,
Object *ob,
BMEditMesh *em_input,
const CustomData_MeshMasks *dataMask,
/* return args */
Mesh **r_cage,
Mesh **r_final)
{
/* Input and final mesh. Final mesh is only created the moment the first
* constructive modifier is executed, or a deform modifier needs normals
* or certain data layers. */
Mesh *mesh_input = ob->data;
Mesh *mesh_final = NULL;
Mesh *mesh_cage = NULL;
/* Deformed vertex locations array. Deform only modifier need this type of
* float array rather than MVert*. Tracked along with mesh_final as an
* optimization to avoid copying coordinates back and forth if there are
* multiple sequential deform only modifiers. */
float (*deformed_verts)[3] = NULL;
int num_deformed_verts = 0;
bool isPrevDeform = false;
/* Mesh with constructive modifiers but no deformation applied. Tracked
* along with final mesh if undeformed / orco coordinates are requested
* for texturing. */
Mesh *mesh_orco = NULL;
/* Modifier evaluation modes. */
const int required_mode = eModifierMode_Realtime | eModifierMode_Editmode;
const bool do_init_statvis = false; /* FIXME: use V3D_OVERLAY_EDIT_STATVIS. */
/* Modifier evaluation contexts for different types of modifiers. */
const ModifierEvalContext mectx = {depsgraph, ob, MOD_APPLY_USECACHE};
const ModifierEvalContext mectx_orco = {depsgraph, ob, MOD_APPLY_ORCO};
/* Evaluate modifiers up to certain index to get the mesh cage. */
int cageIndex = modifiers_getCageIndex(scene, ob, NULL, 1);
if (r_cage && cageIndex == -1) {
mesh_cage = BKE_mesh_from_editmesh_with_coords_thin_wrap(em_input, dataMask, NULL);
mesh_copy_autosmooth(mesh_cage, mesh_input);
}
/* Get effective list of modifiers to execute. Some effects like shape keys
* are added as virtual modifiers before the user created modifiers. */
VirtualModifierData virtualModifierData;
ModifierData *md = modifiers_getVirtualModifierList(ob, &virtualModifierData);
/* Compute accumulated datamasks needed by each modifier. It helps to do
* this fine grained so that for example vertex groups are preserved up to
* an armature modifier, but not through a following subsurf modifier where
* subdividing them is expensive. */
CDMaskLink *datamasks = modifiers_calcDataMasks(scene, ob, md, dataMask, required_mode, NULL, NULL);
CDMaskLink *md_datamask = datamasks;
CustomData_MeshMasks append_mask = CD_MASK_BAREMESH;
/* Clear errors before evaluation. */
modifiers_clearErrors(ob);
for (int i = 0; md; i++, md = md->next, md_datamask = md_datamask->next) {
const ModifierTypeInfo *mti = modifierType_getInfo(md->type);
if (!editbmesh_modifier_is_enabled(scene, md, mesh_final != NULL)) {
continue;
}
/* Add an orco layer if needed by this modifier. */
if (mesh_final && mti->requiredDataMask) {
CustomData_MeshMasks mask = {0};
mti->requiredDataMask(ob, md, &mask);
if (mask.vmask & CD_MASK_ORCO) {
add_orco_mesh(ob, em_input, mesh_final, mesh_orco, CD_ORCO);
}
}
/* How to apply modifier depends on (a) what we already have as
* a result of previous modifiers (could be a mesh or just
* deformed vertices) and (b) what type the modifier is. */
if (mti->type == eModifierTypeType_OnlyDeform) {
/* No existing verts to deform, need to build them. */
if (!deformed_verts) {
if (mesh_final) {
/* Deforming a derived mesh, read the vertex locations
* out of the mesh and deform them. Once done with this
* run of deformers verts will be written back. */
deformed_verts = BKE_mesh_vertexCos_get(mesh_final, &num_deformed_verts);
}
else {
deformed_verts = editbmesh_get_vertex_cos(em_input, &num_deformed_verts);
}
}
else if (isPrevDeform && mti->dependsOnNormals && mti->dependsOnNormals(md)) {
if (mesh_final == NULL) {
mesh_final = BKE_mesh_from_bmesh_for_eval_nomain(em_input->bm, NULL);
ASSERT_IS_VALID_MESH(mesh_final);
mesh_copy_autosmooth(mesh_final, mesh_input);
}
BLI_assert(deformed_verts != NULL);
BKE_mesh_apply_vert_coords(mesh_final, deformed_verts);
}
if (mti->deformVertsEM)
modwrap_deformVertsEM(md, &mectx, em_input, mesh_final, deformed_verts, num_deformed_verts);
else
modwrap_deformVerts(md, &mectx, mesh_final, deformed_verts, num_deformed_verts);
}
else {
/* apply vertex coordinates or build a DerivedMesh as necessary */
if (mesh_final) {
if (deformed_verts) {
Mesh *mesh_tmp = BKE_mesh_copy_for_eval(mesh_final, false);
if (mesh_final != mesh_cage) {
BKE_id_free(NULL, mesh_final);
}
mesh_final = mesh_tmp;
BKE_mesh_apply_vert_coords(mesh_final, deformed_verts);
}
else if (mesh_final == mesh_cage) {
/* 'me' may be changed by this modifier, so we need to copy it. */
mesh_final = BKE_mesh_copy_for_eval(mesh_final, false);
}
}
else {
mesh_final = BKE_mesh_from_bmesh_for_eval_nomain(em_input->bm, NULL);
ASSERT_IS_VALID_MESH(mesh_final);
mesh_copy_autosmooth(mesh_final, mesh_input);
if (deformed_verts) {
BKE_mesh_apply_vert_coords(mesh_final, deformed_verts);
}
}
/* create an orco derivedmesh in parallel */
CustomData_MeshMasks mask = md_datamask->mask;
if (mask.vmask & CD_MASK_ORCO) {
if (!mesh_orco) {
mesh_orco = create_orco_mesh(ob, mesh_input, em_input, CD_ORCO);
}
mask.vmask &= ~CD_MASK_ORCO;
mask.vmask |= CD_MASK_ORIGINDEX;
mask.emask |= CD_MASK_ORIGINDEX;
mask.pmask |= CD_MASK_ORIGINDEX;
mesh_set_only_copy(mesh_orco, &mask);
Mesh *mesh_next = modwrap_applyModifier(md, &mectx_orco, mesh_orco);
ASSERT_IS_VALID_MESH(mesh_next);
if (mesh_next) {
/* if the modifier returned a new dm, release the old one */
if (mesh_orco && mesh_orco != mesh_next) {
BKE_id_free(NULL, mesh_orco);
}
mesh_orco = mesh_next;
}
}
/* set the DerivedMesh to only copy needed data */
CustomData_MeshMasks_update(&mask, &append_mask);
mask = md_datamask->mask; /* CD_MASK_ORCO may have been cleared above */ /* XXX WHAT? ovewrites mask ??? */
mask.vmask |= CD_MASK_ORIGINDEX;
mask.emask |= CD_MASK_ORIGINDEX;
mask.pmask |= CD_MASK_ORIGINDEX;
mesh_set_only_copy(mesh_final, &mask);
if (mask.lmask & CD_MASK_ORIGSPACE_MLOOP) {
if (!CustomData_has_layer(&mesh_final->ldata, CD_ORIGSPACE_MLOOP)) {
CustomData_add_layer(&mesh_final->ldata, CD_ORIGSPACE_MLOOP, CD_CALLOC, NULL, mesh_final->totloop);
mesh_init_origspace(mesh_final);
}
}
Mesh *mesh_next = modwrap_applyModifier(md, &mectx, mesh_final);
ASSERT_IS_VALID_MESH(mesh_next);
if (mesh_next) {
if (mesh_final && mesh_final != mesh_next) {
BKE_id_free(NULL, mesh_final);
}
mesh_final = mesh_next;
if (deformed_verts) {
MEM_freeN(deformed_verts);
deformed_verts = NULL;
}
mesh_copy_autosmooth(mesh_final, mesh_input);
}
mesh_final->runtime.deformed_only = false;
}
if (r_cage && i == cageIndex) {
if (mesh_final && deformed_verts) {
mesh_cage = BKE_mesh_copy_for_eval(mesh_final, false);
BKE_mesh_apply_vert_coords(mesh_cage, deformed_verts);
}
else if (mesh_final) {
mesh_cage = mesh_final;
}
else {
Mesh *me_orig = mesh_input;
if (me_orig->id.tag & LIB_TAG_COPIED_ON_WRITE) {
BKE_mesh_runtime_ensure_edit_data(me_orig);
me_orig->runtime.edit_data->vertexCos = MEM_dupallocN(deformed_verts);
}
mesh_cage = BKE_mesh_from_editmesh_with_coords_thin_wrap(
em_input, dataMask,
deformed_verts ? MEM_dupallocN(deformed_verts) : NULL);
mesh_copy_autosmooth(mesh_cage, mesh_input);
}
}
isPrevDeform = (mti->type == eModifierTypeType_OnlyDeform);
}
BLI_linklist_free((LinkNode *)datamasks, NULL);
/* Yay, we are done. If we have a DerivedMesh and deformed vertices need
* to apply these back onto the DerivedMesh. If we have no DerivedMesh
* then we need to build one. */
if (mesh_final) {
if (deformed_verts) {
Mesh *mesh_tmp = BKE_mesh_copy_for_eval(mesh_final, false);
if (mesh_final != mesh_cage) {
BKE_id_free(NULL, mesh_final);
}
mesh_final = mesh_tmp;
BKE_mesh_apply_vert_coords(mesh_final, deformed_verts);
}
}
else if (!deformed_verts && mesh_cage) {
/* cage should already have up to date normals */
mesh_final = mesh_cage;
/* In this case, we should never have weight-modifying modifiers in stack... */
if (do_init_statvis) {
editmesh_update_statvis_color(scene, ob);
}
}
else {
/* this is just a copy of the editmesh, no need to calc normals */
mesh_final = BKE_mesh_from_editmesh_with_coords_thin_wrap(em_input, dataMask, deformed_verts);
deformed_verts = NULL;
mesh_copy_autosmooth(mesh_final, mesh_input);
/* In this case, we should never have weight-modifying modifiers in stack... */
if (do_init_statvis) {
editmesh_update_statvis_color(scene, ob);
}
}
if (deformed_verts) {
MEM_freeN(deformed_verts);
}
/* Add orco coordinates to final and deformed mesh if requested. */
if (dataMask->vmask & CD_MASK_ORCO) {
add_orco_mesh(ob, em_input, mesh_final, mesh_orco, CD_ORCO);
}
if (mesh_orco) {
BKE_id_free(NULL, mesh_orco);
}
/* Compute normals. */
editbmesh_calc_modifier_final_normals(mesh_input, dataMask, mesh_final);
if (mesh_cage && (mesh_cage != mesh_final)) {
editbmesh_calc_modifier_final_normals(mesh_input, dataMask, mesh_cage);
}
/* Return final mesh. */
*r_final = mesh_final;
if (r_cage) {
*r_cage = mesh_cage;
}
}
static void mesh_finalize_eval(Object *object)
{
Mesh *mesh = (Mesh *)object->data;
Mesh *mesh_eval = object->runtime.mesh_eval;
/* Special Tweaks for cases when evaluated mesh came from
* BKE_mesh_new_nomain_from_template().
*/
BLI_strncpy(mesh_eval->id.name, mesh->id.name, sizeof(mesh_eval->id.name));
if (mesh_eval->mat != NULL) {
MEM_freeN(mesh_eval->mat);
}
/* Set flag which makes it easier to see what's going on in a debugger. */
mesh_eval->id.tag |= LIB_TAG_COPIED_ON_WRITE_EVAL_RESULT;
mesh_eval->mat = MEM_dupallocN(mesh->mat);
mesh_eval->totcol = mesh->totcol;
/* Make evaluated mesh to share same edit mesh pointer as original
* and copied meshes.
*/
mesh_eval->edit_mesh = mesh->edit_mesh;
/* Copy autosmooth settings from original mesh.
* This is not done by BKE_mesh_new_nomain_from_template(), so need to take
* extra care here.
*/
mesh_eval->flag |= (mesh->flag & ME_AUTOSMOOTH);
mesh_eval->smoothresh = mesh->smoothresh;
/* Replace evaluated object's data with fully evaluated mesh. */
/* TODO(sergey): There was statement done by Sybren and Mai that this
* caused modifiers to be applied twice. which is weirtd and shouldn't
* really happen. But since there is no reference to the report, can not
* do much about this.
*/
/* Object is sometimes not evaluated!
* TODO(sergey): BAD TEMPORARY HACK FOR UNTIL WE ARE SMARTER */
if (object->id.tag & LIB_TAG_COPIED_ON_WRITE) {
object->data = mesh_eval;
}
else {
/* evaluated will be available via: 'object->runtime.mesh_eval' */
}
}
static void mesh_build_extra_data(struct Depsgraph *depsgraph, Object *ob)
{
uint32_t eval_flags = DEG_get_eval_flags_for_id(depsgraph, &ob->id);
if (eval_flags & DAG_EVAL_NEED_SHRINKWRAP_BOUNDARY) {
BKE_shrinkwrap_compute_boundary_data(ob->runtime.mesh_eval);
}
}
static void mesh_runtime_check_normals_valid(const Mesh *mesh)
{
UNUSED_VARS_NDEBUG(mesh);
BLI_assert(!(mesh->runtime.cd_dirty_vert & CD_MASK_NORMAL));
BLI_assert(!(mesh->runtime.cd_dirty_loop & CD_MASK_NORMAL));
BLI_assert(!(mesh->runtime.cd_dirty_poly & CD_MASK_NORMAL));
}
static void mesh_build_data(
struct Depsgraph *depsgraph, Scene *scene, Object *ob, const CustomData_MeshMasks *dataMask,
const bool need_mapping)
{
BLI_assert(ob->type == OB_MESH);
/* Evaluated meshes aren't supposed to be created on original instances. If you do,
* they aren't cleaned up properly on mode switch, causing crashes, e.g T58150. */
BLI_assert(ob->id.tag & LIB_TAG_COPIED_ON_WRITE);
BKE_object_free_derived_caches(ob);
BKE_object_sculpt_modifiers_changed(ob);
#if 0 /* XXX This is already taken care of in mesh_calc_modifiers()... */
if (need_mapping) {
/* Also add the flag so that it is recorded in lastDataMask. */
dataMask->vmask |= CD_MASK_ORIGINDEX;
dataMask->emask |= CD_MASK_ORIGINDEX;
dataMask->pmask |= CD_MASK_ORIGINDEX;
}
#endif
mesh_calc_modifiers(
depsgraph, scene, ob, 1, need_mapping, dataMask, -1, true,
&ob->runtime.mesh_deform_eval, &ob->runtime.mesh_eval);
BKE_object_boundbox_calc_from_mesh(ob, ob->runtime.mesh_eval);
/* Only copy texspace from orig mesh if some modifier (hint: smoke sim, see T58492)
* did not re-enable that flag (which always get disabled for eval mesh as a start). */
if (!(ob->runtime.mesh_eval->texflag & ME_AUTOSPACE)) {
BKE_mesh_texspace_copy_from_object(ob->runtime.mesh_eval, ob);
}
mesh_finalize_eval(ob);
ob->runtime.last_data_mask = *dataMask;
ob->runtime.last_need_mapping = need_mapping;
if ((ob->mode & OB_MODE_ALL_SCULPT) && ob->sculpt) {
/* create PBVH immediately (would be created on the fly too,
* but this avoids waiting on first stroke) */
/* XXX Disabled for now.
* This can create horrible nasty bugs by generating re-entrant call of mesh_get_eval_final! */
// BKE_sculpt_update_mesh_elements(depsgraph, scene, scene->toolsettings->sculpt, ob, false, false);
}
mesh_runtime_check_normals_valid(ob->runtime.mesh_eval);
mesh_build_extra_data(depsgraph, ob);
}
static void editbmesh_build_data(
struct Depsgraph *depsgraph, Scene *scene,
Object *obedit, BMEditMesh *em, CustomData_MeshMasks *dataMask)
{
BLI_assert(em->ob->id.tag & LIB_TAG_COPIED_ON_WRITE);
BKE_object_free_derived_caches(obedit);
BKE_object_sculpt_modifiers_changed(obedit);
BKE_editmesh_free_derivedmesh(em);
Mesh *me_cage;
Mesh *me_final;
editbmesh_calc_modifiers(
depsgraph, scene, obedit, em, dataMask,
&me_cage, &me_final);
em->mesh_eval_final = me_final;
em->mesh_eval_cage = me_cage;
BKE_object_boundbox_calc_from_mesh(obedit, em->mesh_eval_final);
em->lastDataMask = *dataMask;
mesh_runtime_check_normals_valid(em->mesh_eval_final);
}
static void object_get_datamask(const Depsgraph *depsgraph, Object *ob, CustomData_MeshMasks *r_mask, bool *r_need_mapping)
{
ViewLayer *view_layer = DEG_get_evaluated_view_layer(depsgraph);
Object *actob = view_layer->basact ? DEG_get_original_object(view_layer->basact->object) : NULL;
DEG_get_customdata_mask_for_object(depsgraph, ob, r_mask);
if (r_need_mapping) {
*r_need_mapping = false;
}
if (DEG_get_original_object(ob) == actob) {
bool editing = BKE_paint_select_face_test(actob);
/* weight paint and face select need original indices because of selection buffer drawing */
if (r_need_mapping) {
*r_need_mapping = (editing || (ob->mode & (OB_MODE_WEIGHT_PAINT | OB_MODE_VERTEX_PAINT)));
}
/* check if we need tfaces & mcols due to face select or texture paint */
if ((ob->mode & OB_MODE_TEXTURE_PAINT) || editing) {
r_mask->lmask |= CD_MASK_MLOOPUV | CD_MASK_MLOOPCOL;
r_mask->fmask |= CD_MASK_MTFACE;
}
/* check if we need mcols due to vertex paint or weightpaint */
if (ob->mode & OB_MODE_VERTEX_PAINT) {
r_mask->lmask |= CD_MASK_MLOOPCOL;
}
if (ob->mode & OB_MODE_WEIGHT_PAINT) {
r_mask->vmask |= CD_MASK_MDEFORMVERT;
}
if (ob->mode & OB_MODE_EDIT)
r_mask->vmask |= CD_MASK_MVERT_SKIN;
}
}
void makeDerivedMesh(
struct Depsgraph *depsgraph, Scene *scene, Object *ob, BMEditMesh *em,
const CustomData_MeshMasks *dataMask)
{
bool need_mapping;
CustomData_MeshMasks cddata_masks = *dataMask;
object_get_datamask(depsgraph, ob, &cddata_masks, &need_mapping);
if (em) {
editbmesh_build_data(depsgraph, scene, ob, em, &cddata_masks);
}
else {
mesh_build_data(depsgraph, scene, ob, &cddata_masks, need_mapping);
}
}
/***/
Mesh *mesh_get_eval_final(struct Depsgraph *depsgraph, Scene *scene, Object *ob, const CustomData_MeshMasks *dataMask)
{
/* This function isn't thread-safe and can't be used during evaluation. */
BLI_assert(DEG_debug_is_evaluating(depsgraph) == false);
/* Evaluated meshes aren't supposed to be created on original instances. If you do,
* they aren't cleaned up properly on mode switch, causing crashes, e.g T58150. */
BLI_assert(ob->id.tag & LIB_TAG_COPIED_ON_WRITE);
/* if there's no evaluated mesh or the last data mask used doesn't include
* the data we need, rebuild the derived mesh
*/
bool need_mapping;
CustomData_MeshMasks cddata_masks = *dataMask;
object_get_datamask(depsgraph, ob, &cddata_masks, &need_mapping);
if (!ob->runtime.mesh_eval ||
!CustomData_MeshMasks_are_matching(&(ob->runtime.last_data_mask), &cddata_masks) ||
(need_mapping && !ob->runtime.last_need_mapping))
{
CustomData_MeshMasks_update(&cddata_masks, &ob->runtime.last_data_mask);
mesh_build_data(depsgraph, scene, ob, &cddata_masks,
need_mapping || ob->runtime.last_need_mapping);
}
if (ob->runtime.mesh_eval) { BLI_assert(!(ob->runtime.mesh_eval->runtime.cd_dirty_vert & CD_MASK_NORMAL)); }
return ob->runtime.mesh_eval;
}
Mesh *mesh_get_eval_deform(struct Depsgraph *depsgraph, Scene *scene, Object *ob, const CustomData_MeshMasks *dataMask)
{
/* This function isn't thread-safe and can't be used during evaluation. */
BLI_assert(DEG_debug_is_evaluating(depsgraph) == false);
/* Evaluated meshes aren't supposed to be created on original instances. If you do,
* they aren't cleaned up properly on mode switch, causing crashes, e.g T58150. */
BLI_assert(ob->id.tag & LIB_TAG_COPIED_ON_WRITE);
/* if there's no derived mesh or the last data mask used doesn't include
* the data we need, rebuild the derived mesh
*/
bool need_mapping;
CustomData_MeshMasks cddata_masks = *dataMask;
object_get_datamask(depsgraph, ob, &cddata_masks, &need_mapping);
if (!ob->runtime.mesh_deform_eval ||
!CustomData_MeshMasks_are_matching(&(ob->runtime.last_data_mask), &cddata_masks) ||
(need_mapping && !ob->runtime.last_need_mapping))
{
CustomData_MeshMasks_update(&cddata_masks, &ob->runtime.last_data_mask);
mesh_build_data(depsgraph, scene, ob, &cddata_masks,
need_mapping || ob->runtime.last_need_mapping);
}
return ob->runtime.mesh_deform_eval;
}
Mesh *mesh_create_eval_final_render(Depsgraph *depsgraph, Scene *scene, Object *ob, const CustomData_MeshMasks *dataMask)
{
Mesh *final;
mesh_calc_modifiers(
depsgraph, scene, ob, 1, false, dataMask, -1, false,
NULL, &final);
return final;
}
Mesh *mesh_create_eval_final_index_render(
Depsgraph *depsgraph, Scene *scene,
Object *ob, const CustomData_MeshMasks *dataMask, int index)
{
Mesh *final;
mesh_calc_modifiers(
depsgraph, scene, ob, 1, false, dataMask, index, false,
NULL, &final);
return final;
}
Mesh *mesh_create_eval_final_view(
Depsgraph *depsgraph, Scene *scene,
Object *ob, const CustomData_MeshMasks *dataMask)
{
Mesh *final;
/* XXX hack
* psys modifier updates particle state when called during dupli-list generation,
* which can lead to wrong transforms. This disables particle system modifier execution.
*/
ob->transflag |= OB_NO_PSYS_UPDATE;
mesh_calc_modifiers(
depsgraph, scene, ob, 1, false, dataMask, -1, false,
NULL, &final);
ob->transflag &= ~OB_NO_PSYS_UPDATE;
return final;
}
Mesh *mesh_create_eval_no_deform(
Depsgraph *depsgraph, Scene *scene, Object *ob,
const CustomData_MeshMasks *dataMask)
{
Mesh *final;
mesh_calc_modifiers(
depsgraph, scene, ob, 0, false, dataMask, -1, false,
NULL, &final);
return final;
}
Mesh *mesh_create_eval_no_deform_render(
Depsgraph *depsgraph, Scene *scene, Object *ob,
const CustomData_MeshMasks *dataMask)
{
Mesh *final;
mesh_calc_modifiers(
depsgraph, scene, ob, 0, false, dataMask, -1, false,
NULL, &final);
return final;
}
/***/
Mesh *editbmesh_get_eval_cage_and_final(
Depsgraph *depsgraph, Scene *scene, Object *obedit, BMEditMesh *em,
const CustomData_MeshMasks *dataMask,
/* return args */
Mesh **r_final)
{
CustomData_MeshMasks cddata_masks = *dataMask;
/* if there's no derived mesh or the last data mask used doesn't include
* the data we need, rebuild the derived mesh
*/
object_get_datamask(depsgraph, obedit, &cddata_masks, NULL);
if (!em->mesh_eval_cage ||
!CustomData_MeshMasks_are_matching(&(em->lastDataMask), &cddata_masks))
{
editbmesh_build_data(depsgraph, scene, obedit, em, &cddata_masks);
}
*r_final = em->mesh_eval_final;
if (em->mesh_eval_final) { BLI_assert(!(em->mesh_eval_final->runtime.cd_dirty_vert & DM_DIRTY_NORMALS)); }
return em->mesh_eval_cage;
}
Mesh *editbmesh_get_eval_cage(
struct Depsgraph *depsgraph, Scene *scene, Object *obedit, BMEditMesh *em,
const CustomData_MeshMasks *dataMask)
{
CustomData_MeshMasks cddata_masks = *dataMask;
/* if there's no derived mesh or the last data mask used doesn't include
* the data we need, rebuild the derived mesh
*/
object_get_datamask(depsgraph, obedit, &cddata_masks, NULL);
if (!em->mesh_eval_cage ||
!CustomData_MeshMasks_are_matching(&(em->lastDataMask), &cddata_masks))
{
editbmesh_build_data(depsgraph, scene, obedit, em, &cddata_masks);
}
return em->mesh_eval_cage;
}
Mesh *editbmesh_get_eval_cage_from_orig(
struct Depsgraph *depsgraph, Scene *scene, Object *obedit, BMEditMesh *UNUSED(em),
const CustomData_MeshMasks *dataMask)
{
BLI_assert((obedit->id.tag & LIB_TAG_COPIED_ON_WRITE) == 0);
Scene *scene_eval = (Scene *)DEG_get_evaluated_id(depsgraph, &scene->id);
Object *obedit_eval = (Object *)DEG_get_evaluated_id(depsgraph, &obedit->id);
BMEditMesh *em_eval = BKE_editmesh_from_object(obedit_eval);
return editbmesh_get_eval_cage(depsgraph, scene_eval, obedit_eval, em_eval, dataMask);
}
/***/
/* same as above but for vert coords */
typedef struct {
float (*vertexcos)[3];
BLI_bitmap *vertex_visit;
} MappedUserData;
static void make_vertexcos__mapFunc(
void *userData, int index, const float co[3],
const float UNUSED(no_f[3]), const short UNUSED(no_s[3]))
{
MappedUserData *mappedData = (MappedUserData *)userData;
if (BLI_BITMAP_TEST(mappedData->vertex_visit, index) == 0) {
/* we need coord from prototype vertex, not from copies,
* assume they stored in the beginning of vertex array stored in DM
* (mirror modifier for eg does this) */
copy_v3_v3(mappedData->vertexcos[index], co);
BLI_BITMAP_ENABLE(mappedData->vertex_visit, index);
}
}
void mesh_get_mapped_verts_coords(Mesh *me_eval, float (*r_cos)[3], const int totcos)
{
if (me_eval->runtime.deformed_only == false) {
MappedUserData userData;
memset(r_cos, 0, sizeof(*r_cos) * totcos);
userData.vertexcos = r_cos;
userData.vertex_visit = BLI_BITMAP_NEW(totcos, "vertexcos flags");
BKE_mesh_foreach_mapped_vert(me_eval, make_vertexcos__mapFunc, &userData, MESH_FOREACH_NOP);
MEM_freeN(userData.vertex_visit);
}
else {
MVert *mv = me_eval->mvert;
for (int i = 0; i < totcos; i++, mv++) {
copy_v3_v3(r_cos[i], mv->co);
}
}
}
void DM_calc_loop_tangents(
DerivedMesh *dm, bool calc_active_tangent,
const char (*tangent_names)[MAX_NAME], int tangent_names_len)
{
BKE_mesh_calc_loop_tangent_ex(
dm->getVertArray(dm),
dm->getPolyArray(dm), dm->getNumPolys(dm),
dm->getLoopArray(dm),
dm->getLoopTriArray(dm), dm->getNumLoopTri(dm),
&dm->loopData,
calc_active_tangent,
tangent_names, tangent_names_len,
CustomData_get_layer(&dm->polyData, CD_NORMAL),
dm->getLoopDataArray(dm, CD_NORMAL),
dm->getVertDataArray(dm, CD_ORCO), /* may be NULL */
/* result */
&dm->loopData, dm->getNumLoops(dm),
&dm->tangent_mask);
}
static void mesh_init_origspace(Mesh *mesh)
{
const float default_osf[4][2] = {{0, 0}, {1, 0}, {1, 1}, {0, 1}};
OrigSpaceLoop *lof_array = CustomData_get_layer(&mesh->ldata, CD_ORIGSPACE_MLOOP);
const int numpoly = mesh->totpoly;
// const int numloop = mesh->totloop;
MVert *mv = mesh->mvert;
MLoop *ml = mesh->mloop;
MPoly *mp = mesh->mpoly;
int i, j, k;
float (*vcos_2d)[2] = NULL;
BLI_array_staticdeclare(vcos_2d, 64);
for (i = 0; i < numpoly; i++, mp++) {
OrigSpaceLoop *lof = lof_array + mp->loopstart;
if (mp->totloop == 3 || mp->totloop == 4) {
for (j = 0; j < mp->totloop; j++, lof++) {
copy_v2_v2(lof->uv, default_osf[j]);
}
}
else {
MLoop *l = &ml[mp->loopstart];
float p_nor[3], co[3];
float mat[3][3];
float min[2] = {FLT_MAX, FLT_MAX}, max[2] = {-FLT_MAX, -FLT_MAX};
float translate[2], scale[2];
BKE_mesh_calc_poly_normal(mp, l, mv, p_nor);
axis_dominant_v3_to_m3(mat, p_nor);
BLI_array_clear(vcos_2d);
BLI_array_reserve(vcos_2d, mp->totloop);
for (j = 0; j < mp->totloop; j++, l++) {
mul_v3_m3v3(co, mat, mv[l->v].co);
copy_v2_v2(vcos_2d[j], co);
for (k = 0; k < 2; k++) {
if (co[k] > max[k])
max[k] = co[k];
else if (co[k] < min[k])
min[k] = co[k];
}
}
/* Brings min to (0, 0). */
negate_v2_v2(translate, min);
/* Scale will bring max to (1, 1). */
sub_v2_v2v2(scale, max, min);
if (scale[0] == 0.0f)
scale[0] = 1e-9f;
if (scale[1] == 0.0f)
scale[1] = 1e-9f;
invert_v2(scale);
/* Finally, transform all vcos_2d into ((0, 0), (1, 1)) square and assign them as origspace. */
for (j = 0; j < mp->totloop; j++, lof++) {
add_v2_v2v2(lof->uv, vcos_2d[j], translate);
mul_v2_v2(lof->uv, scale);
}
}
}
BKE_mesh_tessface_clear(mesh);
BLI_array_free(vcos_2d);
}
/* derivedmesh info printing function,
* to help track down differences DM output */
#ifndef NDEBUG
#include "BLI_dynstr.h"
static void dm_debug_info_layers(
DynStr *dynstr, DerivedMesh *dm, CustomData *cd,
void *(*getElemDataArray)(DerivedMesh *, int))
{
int type;
for (type = 0; type < CD_NUMTYPES; type++) {
if (CustomData_has_layer(cd, type)) {
/* note: doesn't account for multiple layers */
const char *name = CustomData_layertype_name(type);
const int size = CustomData_sizeof(type);
const void *pt = getElemDataArray(dm, type);
const int pt_size = pt ? (int)(MEM_allocN_len(pt) / size) : 0;
const char *structname;
int structnum;
CustomData_file_write_info(type, &structname, &structnum);
BLI_dynstr_appendf(dynstr,
" dict(name='%s', struct='%s', type=%d, ptr='%p', elem=%d, length=%d),\n",
name, structname, type, (const void *)pt, size, pt_size);
}
}
}
char *DM_debug_info(DerivedMesh *dm)
{
DynStr *dynstr = BLI_dynstr_new();
char *ret;
const char *tstr;
BLI_dynstr_append(dynstr, "{\n");
BLI_dynstr_appendf(dynstr, " 'ptr': '%p',\n", (void *)dm);
switch (dm->type) {
case DM_TYPE_CDDM: tstr = "DM_TYPE_CDDM"; break;
case DM_TYPE_CCGDM: tstr = "DM_TYPE_CCGDM"; break;
default: tstr = "UNKNOWN"; break;
}
BLI_dynstr_appendf(dynstr, " 'type': '%s',\n", tstr);
BLI_dynstr_appendf(dynstr, " 'numVertData': %d,\n", dm->numVertData);
BLI_dynstr_appendf(dynstr, " 'numEdgeData': %d,\n", dm->numEdgeData);
BLI_dynstr_appendf(dynstr, " 'numTessFaceData': %d,\n", dm->numTessFaceData);
BLI_dynstr_appendf(dynstr, " 'numPolyData': %d,\n", dm->numPolyData);
BLI_dynstr_appendf(dynstr, " 'deformedOnly': %d,\n", dm->deformedOnly);
BLI_dynstr_append(dynstr, " 'vertexLayers': (\n");
dm_debug_info_layers(dynstr, dm, &dm->vertData, dm->getVertDataArray);
BLI_dynstr_append(dynstr, " ),\n");
BLI_dynstr_append(dynstr, " 'edgeLayers': (\n");
dm_debug_info_layers(dynstr, dm, &dm->edgeData, dm->getEdgeDataArray);
BLI_dynstr_append(dynstr, " ),\n");
BLI_dynstr_append(dynstr, " 'loopLayers': (\n");
dm_debug_info_layers(dynstr, dm, &dm->loopData, dm->getLoopDataArray);
BLI_dynstr_append(dynstr, " ),\n");
BLI_dynstr_append(dynstr, " 'polyLayers': (\n");
dm_debug_info_layers(dynstr, dm, &dm->polyData, dm->getPolyDataArray);
BLI_dynstr_append(dynstr, " ),\n");
BLI_dynstr_append(dynstr, " 'tessFaceLayers': (\n");
dm_debug_info_layers(dynstr, dm, &dm->faceData, dm->getTessFaceDataArray);
BLI_dynstr_append(dynstr, " ),\n");
BLI_dynstr_append(dynstr, "}\n");
ret = BLI_dynstr_get_cstring(dynstr);
BLI_dynstr_free(dynstr);
return ret;
}
void DM_debug_print(DerivedMesh *dm)
{
char *str = DM_debug_info(dm);
puts(str);
fflush(stdout);
MEM_freeN(str);
}
void DM_debug_print_cdlayers(CustomData *data)
{
int i;
const CustomDataLayer *layer;
printf("{\n");
for (i = 0, layer = data->layers; i < data->totlayer; i++, layer++) {
const char *name = CustomData_layertype_name(layer->type);
const int size = CustomData_sizeof(layer->type);
const char *structname;
int structnum;
CustomData_file_write_info(layer->type, &structname, &structnum);
printf(" dict(name='%s', struct='%s', type=%d, ptr='%p', elem=%d, length=%d),\n",
name, structname, layer->type, (const void *)layer->data, size, (int)(MEM_allocN_len(layer->data) / size));
}
printf("}\n");
}
bool DM_is_valid(DerivedMesh *dm)
{
const bool do_verbose = true;
const bool do_fixes = false;
bool is_valid = true;
bool changed = true;
is_valid &= BKE_mesh_validate_all_customdata(
dm->getVertDataLayout(dm), dm->getNumVerts(dm),
dm->getEdgeDataLayout(dm), dm->getNumEdges(dm),
dm->getLoopDataLayout(dm), dm->getNumLoops(dm),
dm->getPolyDataLayout(dm), dm->getNumPolys(dm),
false, /* setting mask here isn't useful, gives false positives */
do_verbose, do_fixes, &changed);
is_valid &= BKE_mesh_validate_arrays(
NULL,
dm->getVertArray(dm), dm->getNumVerts(dm),
dm->getEdgeArray(dm), dm->getNumEdges(dm),
dm->getTessFaceArray(dm), dm->getNumTessFaces(dm),
dm->getLoopArray(dm), dm->getNumLoops(dm),
dm->getPolyArray(dm), dm->getNumPolys(dm),
dm->getVertDataArray(dm, CD_MDEFORMVERT),
do_verbose, do_fixes, &changed);
BLI_assert(changed == false);
return is_valid;
}
#endif /* NDEBUG */
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