/* * 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 #include #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_bitmap.h" #include "BLI_blenlib.h" #include "BLI_float2.hh" #include "BLI_linklist.h" #include "BLI_math.h" #include "BLI_task.h" #include "BLI_task.hh" #include "BLI_utildefines.h" #include "BLI_vector.hh" #include "BKE_DerivedMesh.h" #include "BKE_bvhutils.h" #include "BKE_colorband.h" #include "BKE_deform.h" #include "BKE_editmesh.h" #include "BKE_geometry_set.hh" #include "BKE_geometry_set_instances.hh" #include "BKE_key.h" #include "BKE_layer.h" #include "BKE_lib_id.h" #include "BKE_material.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_mesh_wrapper.h" #include "BKE_modifier.h" #include "BKE_multires.h" #include "BKE_object.h" #include "BKE_object_deform.h" #include "BKE_paint.h" #include "BLI_sys_types.h" /* for intptr_t support */ #include "BKE_shrinkwrap.h" #include "DEG_depsgraph.h" #include "DEG_depsgraph_query.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_MESH(mesh) \ (BLI_assert((mesh == nullptr) || (BKE_mesh_is_valid(mesh) == true))) #else # define ASSERT_IS_VALID_MESH(mesh) #endif static ThreadRWMutex loops_cache_lock = PTHREAD_RWLOCK_INITIALIZER; static void mesh_init_origspace(Mesh *mesh); static void editbmesh_calc_modifier_final_normals(Mesh *mesh_final, const CustomData_MeshMasks *final_datamask); /* -------------------------------------------------------------------- */ static MVert *dm_getVertArray(DerivedMesh *dm) { MVert *mvert = (MVert *)CustomData_get_layer(&dm->vertData, CD_MVERT); if (!mvert) { mvert = (MVert *)CustomData_add_layer( &dm->vertData, CD_MVERT, CD_CALLOC, nullptr, 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 = (MEdge *)CustomData_get_layer(&dm->edgeData, CD_MEDGE); if (!medge) { medge = (MEdge *)CustomData_add_layer( &dm->edgeData, CD_MEDGE, CD_CALLOC, nullptr, 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 = (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 nullptr; } mface = (MFace *)CustomData_add_layer( &dm->faceData, CD_MFACE, CD_CALLOC, nullptr, 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 = (MLoop *)CustomData_get_layer(&dm->loopData, CD_MLOOP); if (!mloop) { mloop = (MLoop *)CustomData_add_layer( &dm->loopData, CD_MLOOP, CD_CALLOC, nullptr, 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 = (MPoly *)CustomData_get_layer(&dm->polyData, CD_MPOLY); if (!mpoly) { mpoly = (MPoly *)CustomData_add_layer( &dm->polyData, CD_MPOLY, CD_CALLOC, nullptr, 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 = (MVert *)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 = (MEdge *)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 = (MFace *)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 = (MLoop *)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 = (MPoly *)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 != nullptr) { 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 nullptr inside mutex-protected code, * some other thread might have already recomputed those looptris. */ if (dm->looptris.array == nullptr) { 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; } 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; } 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 = (DMDirtyFlag)0; /* Don't use #CustomData_reset because we don't want to touch custom-data. */ 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); } 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 = (DMDirtyFlag)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); } bool DM_release(DerivedMesh *dm) { if (dm->needsFree) { 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); MEM_SAFE_FREE(dm->looptris.array); dm->looptris.num = 0; dm->looptris.num_alloc = 0; return true; } 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 false; } 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); } 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 == nullptr); 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 == nullptr) { dm->looptris.array_wip = (MLoopTri *)MEM_malloc_arrayN( looptris_num, sizeof(*dm->looptris.array_wip), __func__); dm->looptris.num_alloc = looptris_num; } dm->looptris.num = looptris_num; } } void BKE_mesh_runtime_eval_to_meshkey(Mesh *me_deformed, Mesh *me, KeyBlock *kb) { /* Just a shallow wrapper around #BKE_keyblock_convert_from_mesh, * that ensures both evaluated mesh and original one has same number of vertices. */ 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); } 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); } 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, nullptr, count, dest_index); } 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 = (float(*)[3])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); } return BKE_mesh_orco_verts_get(ob); } 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 *)BKE_modifiers_findby_type( ob, eModifierType_Cloth); if (clmd) { KeyBlock *kb = BKE_keyblock_from_key(BKE_key_from_object(ob), clmd->sim_parms->shapekey_rest); if (kb && kb->data) { return (float(*)[3])kb->data; } } } return nullptr; } return nullptr; } 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, nullptr, me); } else { mesh = BKE_mesh_copy_for_eval(me, true); } orco = get_orco_coords(ob, em, layer, &free); if (orco) { BKE_mesh_vert_coords_apply(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_vert_coords_alloc(mesh_orco, nullptr); } else { orco = BKE_mesh_vert_coords_alloc(mesh, nullptr); } } 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((Mesh *)ob->data, orco, totvert, 0); } if (!(layerorco = (float(*)[3])CustomData_get_layer(&mesh->vdata, layer))) { CustomData_add_layer(&mesh->vdata, layer, CD_CALLOC, nullptr, mesh->totvert); BKE_mesh_update_customdata_pointers(mesh, false); layerorco = (float(*)[3])CustomData_get_layer(&mesh->vdata, layer); } memcpy(layerorco, orco, sizeof(float[3]) * totvert); if (free) { MEM_freeN(orco); } } } static void mesh_calc_modifier_final_normals(const Mesh *mesh_input, const CustomData_MeshMasks *final_datamask, const bool sculpt_dyntopo, Mesh *mesh_final) { /* Compute normals. */ const bool do_loop_normals = ((mesh_input->flag & ME_AUTOSMOOTH) != 0 || (final_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 computed, * since they are needed by drawing code. */ const bool do_poly_normals = ((final_datamask->pmask & CD_MASK_NORMAL) != 0); /* In case we also need poly normals, add the layer and compute them here * (BKE_mesh_calc_normals_split() assumes that if that data exists, it is always valid). */ if (do_poly_normals) { if (!CustomData_has_layer(&mesh_final->pdata, CD_NORMAL)) { float(*polynors)[3] = (float(*)[3])CustomData_add_layer( &mesh_final->pdata, CD_NORMAL, CD_CALLOC, nullptr, mesh_final->totpoly); BKE_mesh_calc_normals_poly_and_vertex(mesh_final->mvert, mesh_final->totvert, mesh_final->mloop, mesh_final->totloop, mesh_final->mpoly, mesh_final->totpoly, polynors, nullptr); } } if (do_loop_normals) { /* 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 (final_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 data-transfer, 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); } } /* Does final touches to the final evaluated mesh, making sure it is perfectly usable. * * This is needed because certain information is not passed along intermediate meshes allocated * during stack evaluation. */ static void mesh_calc_finalize(const Mesh *mesh_input, Mesh *mesh_eval) { /* Make sure the name is the same. This is because mesh allocation from template does not * take care of naming. */ BLI_strncpy(mesh_eval->id.name, mesh_input->id.name, sizeof(mesh_eval->id.name)); /* Make evaluated mesh to share same edit mesh pointer as original and copied meshes. */ mesh_eval->edit_mesh = mesh_input->edit_mesh; } void BKE_mesh_wrapper_deferred_finalize(Mesh *me_eval, const CustomData_MeshMasks *cd_mask_finalize) { if (me_eval->runtime.wrapper_type_finalize & (1 << ME_WRAPPER_TYPE_BMESH)) { editbmesh_calc_modifier_final_normals(me_eval, cd_mask_finalize); me_eval->runtime.wrapper_type_finalize &= ~(1 << ME_WRAPPER_TYPE_BMESH); } BLI_assert(me_eval->runtime.wrapper_type_finalize == 0); } /** * Modifies the given mesh and geometry set. The mesh is not passed as part of the mesh component * in the \a geometry_set input, it is only passed in \a input_mesh and returned in the return * value. * * The purpose of the geometry set is to store all geometry components that are generated * by modifiers to allow outputting non-mesh data from modifiers. */ static Mesh *modifier_modify_mesh_and_geometry_set(ModifierData *md, const ModifierEvalContext &mectx, Mesh *input_mesh, GeometrySet &geometry_set) { Mesh *mesh_output = nullptr; const ModifierTypeInfo *mti = BKE_modifier_get_info((ModifierType)md->type); if (mti->modifyGeometrySet == nullptr) { mesh_output = BKE_modifier_modify_mesh(md, &mectx, input_mesh); } else { /* For performance reasons, this should be called by the modifier and/or nodes themselves at * some point. */ BKE_mesh_wrapper_ensure_mdata(input_mesh); /* Adds a new mesh component to the geometry set based on the #input_mesh. */ MeshComponent &mesh_component = geometry_set.get_component_for_write(); /* Replace only the mesh rather than the whole component, because the entire #MeshComponent * might have been replaced by data from a different object in the node tree, which means the * component contains vertex group name data for that object that should not be removed. */ mesh_component.replace(input_mesh, GeometryOwnershipType::Editable); /* Let the modifier change the geometry set. */ mti->modifyGeometrySet(md, &mectx, &geometry_set); /* Release the mesh from the geometry set again. */ if (geometry_set.has()) { MeshComponent &mesh_component = geometry_set.get_component_for_write(); if (mesh_component.get_for_read() != input_mesh) { /* Make sure the mesh component actually owns the mesh before taking over ownership. */ mesh_component.ensure_owns_direct_data(); } mesh_output = mesh_component.release(); } /* Return an empty mesh instead of null. */ if (mesh_output == nullptr) { mesh_output = BKE_mesh_new_nomain(0, 0, 0, 0, 0); BKE_mesh_copy_parameters_for_eval(mesh_output, input_mesh); } } return mesh_output; } static void mesh_calc_modifiers(struct Depsgraph *depsgraph, Scene *scene, Object *ob, const bool use_deform, const bool need_mapping, const CustomData_MeshMasks *dataMask, const int index, const bool use_cache, const bool allow_shared_mesh, /* return args */ Mesh **r_deform, Mesh **r_final, GeometrySet **r_geometry_set) { /* 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 = (Mesh *)ob->data; Mesh *mesh_final = nullptr; Mesh *mesh_deform = nullptr; /* This geometry set contains the non-mesh data that might be generated by modifiers. */ GeometrySet geometry_set_final; 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] = nullptr; 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 = nullptr; Mesh *mesh_orco_cloth = nullptr; /* 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. */ const bool has_multires = BKE_sculpt_multires_active(scene, ob) != nullptr; 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 apply_render = use_render ? MOD_APPLY_RENDER : (ModifierApplyFlag)0; ModifierApplyFlag apply_cache = use_cache ? MOD_APPLY_USECACHE : (ModifierApplyFlag)0; const ModifierEvalContext mectx = { depsgraph, ob, (ModifierApplyFlag)(apply_render | apply_cache)}; const ModifierEvalContext mectx_orco = { depsgraph, ob, (ModifierApplyFlag)(apply_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 = BKE_modifiers_get_virtual_modifierlist(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 = nullptr; CustomData_MeshMasks previewmask = {0}; if (do_mod_mcol) { /* Find the last active modifier generating a preview, or nullptr 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 = BKE_modifier_get_last_preview(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. */ CustomData_MeshMasks final_datamask = *dataMask; CDMaskLink *datamasks = BKE_modifier_calc_data_masks( scene, ob, md, &final_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. */ BKE_modifiers_clear_errors(ob); /* Apply all leading deform modifiers. */ if (use_deform) { for (; md; md = md->next, md_datamask = md_datamask->next) { const ModifierTypeInfo *mti = BKE_modifier_get_info((ModifierType)md->type); if (!BKE_modifier_is_enabled(scene, md, required_mode)) { continue; } if (mti->type == eModifierTypeType_OnlyDeform && !sculpt_dyntopo) { if (!deformed_verts) { deformed_verts = BKE_mesh_vert_coords_alloc(mesh_input, &num_deformed_verts); } else if (isPrevDeform && mti->dependsOnNormals && mti->dependsOnNormals(md)) { if (mesh_final == nullptr) { mesh_final = BKE_mesh_copy_for_eval(mesh_input, true); ASSERT_IS_VALID_MESH(mesh_final); } BKE_mesh_vert_coords_apply(mesh_final, deformed_verts); } BKE_modifier_deform_verts(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)) { md = nullptr; 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_vert_coords_apply(mesh_deform, deformed_verts); } } } /* Apply all remaining constructive and deforming modifiers. */ bool have_non_onlydeform_modifiers_appled = false; for (; md; md = md->next, md_datamask = md_datamask->next) { const ModifierTypeInfo *mti = BKE_modifier_get_info((ModifierType)md->type); if (!BKE_modifier_is_enabled(scene, md, required_mode)) { continue; } if (mti->type == eModifierTypeType_OnlyDeform && !use_deform) { continue; } if ((mti->flags & eModifierTypeFlag_RequiresOriginalData) && have_non_onlydeform_modifiers_appled) { BKE_modifier_set_error(ob, 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) { BKE_modifier_set_error(ob, md, "Not supported in dyntopo"); } else { BKE_modifier_set_error(ob, md, "Not supported in sculpt mode"); } continue; } } if (need_mapping && !BKE_modifier_supports_mapping(md)) { continue; } /* Add orco mesh as layer if needed by this modifier. */ if (mesh_final && mesh_orco && mti->requiredDataMask) { CustomData_MeshMasks mask = {0}; mti->requiredDataMask(ob, md, &mask); if (mask.vmask & CD_MASK_ORCO) { add_orco_mesh(ob, nullptr, 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_vert_coords_alloc(mesh_final, &num_deformed_verts); } else { deformed_verts = BKE_mesh_vert_coords_alloc(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: T23673. */ else if (isPrevDeform && mti->dependsOnNormals && mti->dependsOnNormals(md)) { if (mesh_final == nullptr) { mesh_final = BKE_mesh_copy_for_eval(mesh_input, true); ASSERT_IS_VALID_MESH(mesh_final); } BKE_mesh_vert_coords_apply(mesh_final, deformed_verts); } BKE_modifier_deform_verts(md, &mectx, mesh_final, deformed_verts, num_deformed_verts); } else { bool check_for_needs_mapping = false; /* apply vertex coordinates or build a Mesh as necessary */ if (mesh_final != nullptr) { if (have_non_onlydeform_modifiers_appled == false) { /* If we only deformed, we won't have initialized #CD_ORIGINDEX. * as this is the only part of the function that initializes mapping. */ check_for_needs_mapping = true; } } else { mesh_final = BKE_mesh_copy_for_eval(mesh_input, true); ASSERT_IS_VALID_MESH(mesh_final); check_for_needs_mapping = true; } if (deformed_verts) { BKE_mesh_vert_coords_apply(mesh_final, deformed_verts); } have_non_onlydeform_modifiers_appled = true; /* determine which data layers are needed by following modifiers */ CustomData_MeshMasks nextmask = md_datamask->next ? md_datamask->next->mask : final_datamask; if (check_for_needs_mapping) { /* 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, nullptr, mesh_final->totvert); CustomData_add_layer( &mesh_final->edata, CD_ORIGINDEX, CD_CALLOC, nullptr, mesh_final->totedge); CustomData_add_layer( &mesh_final->pdata, CD_ORIGINDEX, CD_CALLOC, nullptr, mesh_final->totpoly); /* Not worth parallelizing this, * gives less than 0.1% overall speedup in best of best cases... */ range_vn_i((int *)CustomData_get_layer(&mesh_final->vdata, CD_ORIGINDEX), mesh_final->totvert, 0); range_vn_i((int *)CustomData_get_layer(&mesh_final->edata, CD_ORIGINDEX), mesh_final->totedge, 0); range_vn_i((int *)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 T28112, 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, nullptr, 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, nullptr, mesh_final->totloop); mesh_init_origspace(mesh_final); } } Mesh *mesh_next = modifier_modify_mesh_and_geometry_set( md, mectx, mesh_final, geometry_set_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(nullptr, mesh_final); } mesh_final = mesh_next; if (deformed_verts) { MEM_freeN(deformed_verts); deformed_verts = nullptr; } } /* create an orco mesh in parallel */ if (nextmask.vmask & CD_MASK_ORCO) { if (!mesh_orco) { mesh_orco = create_orco_mesh(ob, mesh_input, nullptr, CD_ORCO); } nextmask.vmask &= ~CD_MASK_ORCO; CustomData_MeshMasks temp_cddata_masks = {0}; temp_cddata_masks.vmask = CD_MASK_ORIGINDEX; temp_cddata_masks.emask = CD_MASK_ORIGINDEX; temp_cddata_masks.fmask = CD_MASK_ORIGINDEX; temp_cddata_masks.pmask = CD_MASK_ORIGINDEX; if (mti->requiredDataMask != nullptr) { 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 = BKE_modifier_modify_mesh(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(nullptr, 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, nullptr, 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 = BKE_modifier_modify_mesh(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(nullptr, 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, nullptr); for (md = firstmd; md; md = md->next) { BKE_modifier_free_temporary_data(md); } /* Yay, we are done. If we have a Mesh and deformed vertices, * we need to apply these back onto the Mesh. If we have no * Mesh then we need to build one. */ if (mesh_final == nullptr) { /* NOTE: this check on cdmask is a bit dodgy, it handles the issue at stake here (see T68211), * but other cases might require similar handling? * Could be a good idea to define a proper CustomData_MeshMask for that then. */ if (deformed_verts == nullptr && allow_shared_mesh && (final_datamask.lmask & CD_MASK_NORMAL) == 0 && (final_datamask.pmask & CD_MASK_NORMAL) == 0) { mesh_final = mesh_input; } else { mesh_final = BKE_mesh_copy_for_eval(mesh_input, true); } } if (deformed_verts) { BKE_mesh_vert_coords_apply(mesh_final, deformed_verts); MEM_freeN(deformed_verts); deformed_verts = nullptr; } /* Denotes whether the object which the modifier stack came from owns the mesh or whether the * mesh is shared across multiple objects since there are no effective modifiers. */ const bool is_own_mesh = (mesh_final != mesh_input); /* Add orco coordinates to final and deformed mesh if requested. */ if (final_datamask.vmask & CD_MASK_ORCO) { /* No need in ORCO layer if the mesh was not deformed or modified: undeformed mesh in this case * matches input mesh. */ if (is_own_mesh) { add_orco_mesh(ob, nullptr, mesh_final, mesh_orco, CD_ORCO); } if (mesh_deform) { add_orco_mesh(ob, nullptr, mesh_deform, nullptr, CD_ORCO); } } if (mesh_orco) { BKE_id_free(nullptr, mesh_orco); } if (mesh_orco_cloth) { BKE_id_free(nullptr, mesh_orco_cloth); } /* Compute normals. */ if (is_own_mesh) { mesh_calc_modifier_final_normals(mesh_input, &final_datamask, sculpt_dyntopo, mesh_final); } else { Mesh_Runtime *runtime = &mesh_input->runtime; if (runtime->mesh_eval == nullptr) { BLI_assert(runtime->eval_mutex != nullptr); BLI_mutex_lock((ThreadMutex *)runtime->eval_mutex); if (runtime->mesh_eval == nullptr) { /* Isolate since computing normals is multithreaded and we are holding a lock. */ blender::threading::isolate_task([&] { mesh_final = BKE_mesh_copy_for_eval(mesh_input, true); mesh_calc_modifier_final_normals( mesh_input, &final_datamask, sculpt_dyntopo, mesh_final); mesh_calc_finalize(mesh_input, mesh_final); runtime->mesh_eval = mesh_final; }); } BLI_mutex_unlock((ThreadMutex *)runtime->eval_mutex); } mesh_final = runtime->mesh_eval; } if (is_own_mesh) { mesh_calc_finalize(mesh_input, mesh_final); } /* Return final mesh */ *r_final = mesh_final; if (r_deform) { *r_deform = mesh_deform; } if (r_geometry_set) { *r_geometry_set = new GeometrySet(std::move(geometry_set_final)); } } float (*editbmesh_vert_coords_alloc(BMEditMesh *em, int *r_vert_len))[3] { BMIter iter; BMVert *eve; float(*cos)[3]; int i; *r_vert_len = em->bm->totvert; cos = (float(*)[3])MEM_malloc_arrayN(em->bm->totvert, sizeof(float[3]), "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, const Object *ob, ModifierData *md, bool has_prev_mesh) { const ModifierTypeInfo *mti = BKE_modifier_get_info((ModifierType)md->type); const int required_mode = eModifierMode_Realtime | eModifierMode_Editmode; if (!BKE_modifier_is_enabled(scene, md, required_mode)) { return false; } if ((mti->flags & eModifierTypeFlag_RequiresOriginalData) && has_prev_mesh) { BKE_modifier_set_error(ob, md, "Modifier requires original data, bad stack position"); return false; } return true; } static void editbmesh_calc_modifier_final_normals(Mesh *mesh_final, const CustomData_MeshMasks *final_datamask) { if (mesh_final->runtime.wrapper_type != ME_WRAPPER_TYPE_MDATA) { /* Generated at draw time. */ mesh_final->runtime.wrapper_type_finalize = (1 << mesh_final->runtime.wrapper_type); return; } const bool do_loop_normals = ((mesh_final->flag & ME_AUTOSMOOTH) != 0 || (final_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 = ((final_datamask->pmask & CD_MASK_NORMAL) != 0); /* In case we also need poly normals, add the layer and compute them here * (BKE_mesh_calc_normals_split() assumes that if that data exists, it is always valid). */ if (do_poly_normals) { if (!CustomData_has_layer(&mesh_final->pdata, CD_NORMAL)) { float(*polynors)[3] = (float(*)[3])CustomData_add_layer( &mesh_final->pdata, CD_NORMAL, CD_CALLOC, nullptr, mesh_final->totpoly); BKE_mesh_calc_normals_poly_and_vertex(mesh_final->mvert, mesh_final->totvert, mesh_final->mloop, mesh_final->totloop, mesh_final->mpoly, mesh_final->totpoly, polynors, nullptr); } } if (do_loop_normals) { /* 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 won't be created. */ if (final_datamask->fmask & CD_MASK_MFACE) { if (mesh_final->edit_mesh == nullptr) { 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 data-transfer, 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, GeometrySet **r_geometry_set) { /* 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 = (Mesh *)ob->data; Mesh *mesh_final = nullptr; Mesh *mesh_cage = nullptr; /* This geometry set contains the non-mesh data that might be generated by modifiers. */ GeometrySet geometry_set_final; /* 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] = nullptr; 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 = nullptr; /* Modifier evaluation modes. */ const int required_mode = eModifierMode_Realtime | eModifierMode_Editmode; const bool use_render = (DEG_get_mode(depsgraph) == DAG_EVAL_RENDER); /* Modifier evaluation contexts for different types of modifiers. */ ModifierApplyFlag apply_render = use_render ? MOD_APPLY_RENDER : (ModifierApplyFlag)0; const ModifierEvalContext mectx = { depsgraph, ob, (ModifierApplyFlag)(MOD_APPLY_USECACHE | apply_render)}; const ModifierEvalContext mectx_orco = {depsgraph, ob, 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 *md = BKE_modifiers_get_virtual_modifierlist(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. */ CustomData_MeshMasks final_datamask = *dataMask; CDMaskLink *datamasks = BKE_modifier_calc_data_masks( scene, ob, md, &final_datamask, required_mode, nullptr, nullptr); CDMaskLink *md_datamask = datamasks; CustomData_MeshMasks append_mask = CD_MASK_BAREMESH; /* Evaluate modifiers up to certain index to get the mesh cage. */ int cageIndex = BKE_modifiers_get_cage_index(scene, ob, nullptr, true); if (r_cage && cageIndex == -1) { mesh_cage = BKE_mesh_wrapper_from_editmesh_with_coords( em_input, &final_datamask, nullptr, mesh_input); } /* Clear errors before evaluation. */ BKE_modifiers_clear_errors(ob); for (int i = 0; md; i++, md = md->next, md_datamask = md_datamask->next) { const ModifierTypeInfo *mti = BKE_modifier_get_info((ModifierType)md->type); if (!editbmesh_modifier_is_enabled(scene, ob, md, mesh_final != nullptr)) { continue; } /* Add an orco mesh as layer if needed by this modifier. */ if (mesh_final && mesh_orco && 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_vert_coords_alloc(mesh_final, &num_deformed_verts); } else { deformed_verts = editbmesh_vert_coords_alloc(em_input, &num_deformed_verts); } } else if (isPrevDeform && mti->dependsOnNormals && mti->dependsOnNormals(md)) { if (mesh_final == nullptr) { mesh_final = BKE_mesh_from_bmesh_for_eval_nomain(em_input->bm, nullptr, mesh_input); ASSERT_IS_VALID_MESH(mesh_final); } BLI_assert(deformed_verts != nullptr); BKE_mesh_vert_coords_apply(mesh_final, deformed_verts); } if (mti->deformVertsEM) { BKE_modifier_deform_vertsEM( md, &mectx, em_input, mesh_final, deformed_verts, num_deformed_verts); } else { BKE_modifier_deform_verts(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(nullptr, mesh_final); } mesh_final = mesh_tmp; BKE_mesh_vert_coords_apply(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_wrapper_from_editmesh_with_coords( em_input, nullptr, deformed_verts, mesh_input); deformed_verts = nullptr; } /* 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 = BKE_modifier_modify_mesh(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(nullptr, mesh_orco); } mesh_orco = mesh_next; } } /* set the DerivedMesh to only copy needed data */ CustomData_MeshMasks_update(&mask, &append_mask); /* XXX WHAT? ovewrites mask ??? */ /* CD_MASK_ORCO may have been cleared above */ mask = md_datamask->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, nullptr, mesh_final->totloop); mesh_init_origspace(mesh_final); } } Mesh *mesh_next = modifier_modify_mesh_and_geometry_set( md, mectx, mesh_final, geometry_set_final); ASSERT_IS_VALID_MESH(mesh_next); if (mesh_next) { if (mesh_final && mesh_final != mesh_next) { BKE_id_free(nullptr, mesh_final); } mesh_final = mesh_next; if (deformed_verts) { MEM_freeN(deformed_verts); deformed_verts = nullptr; } } 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_vert_coords_apply(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) { if (!BKE_mesh_runtime_ensure_edit_data(me_orig)) { BKE_mesh_runtime_reset_edit_data(me_orig); } me_orig->runtime.edit_data->vertexCos = (const float(*)[3])MEM_dupallocN(deformed_verts); } mesh_cage = BKE_mesh_wrapper_from_editmesh_with_coords( em_input, &final_datamask, deformed_verts ? (const float(*)[3])MEM_dupallocN(deformed_verts) : nullptr, mesh_input); } } isPrevDeform = (mti->type == eModifierTypeType_OnlyDeform); } BLI_linklist_free((LinkNode *)datamasks, nullptr); /* 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(nullptr, mesh_final); } mesh_final = mesh_tmp; BKE_mesh_vert_coords_apply(mesh_final, deformed_verts); } } else if (!deformed_verts && mesh_cage) { /* cage should already have up to date normals */ mesh_final = mesh_cage; } else { /* this is just a copy of the editmesh, no need to calc normals */ mesh_final = BKE_mesh_wrapper_from_editmesh_with_coords( em_input, &final_datamask, deformed_verts, mesh_input); deformed_verts = nullptr; } if (deformed_verts) { MEM_freeN(deformed_verts); } /* Add orco coordinates to final and deformed mesh if requested. */ if (final_datamask.vmask & CD_MASK_ORCO) { /* FIXME(Campbell): avoid the need to convert to mesh data just to add an orco layer. */ BKE_mesh_wrapper_ensure_mdata(mesh_final); add_orco_mesh(ob, em_input, mesh_final, mesh_orco, CD_ORCO); } if (mesh_orco) { BKE_id_free(nullptr, mesh_orco); } /* Ensure normals calculation below is correct (normal settings have transferred properly). * However, nodes modifiers might create meshes from scratch or transfer meshes from other * objects with different settings, and in general it doesn't make sense to guarantee that * the settings are the same as the original mesh. If necessary, this could become a modifier * type flag. */ BLI_assert(mesh_input->smoothresh == mesh_cage->smoothresh); /* Compute normals. */ editbmesh_calc_modifier_final_normals(mesh_final, &final_datamask); if (mesh_cage && (mesh_cage != mesh_final)) { editbmesh_calc_modifier_final_normals(mesh_cage, &final_datamask); } /* Return final mesh. */ *r_final = mesh_final; if (r_cage) { *r_cage = mesh_cage; } if (r_geometry_set) { *r_geometry_set = new GeometrySet(std::move(geometry_set_final)); } } static void mesh_build_extra_data(struct Depsgraph *depsgraph, Object *ob, Mesh *mesh_eval) { 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(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); if (DEG_is_active(depsgraph)) { BKE_sculpt_update_object_before_eval(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 *mesh_eval = nullptr, *mesh_deform_eval = nullptr; GeometrySet *geometry_set_eval = nullptr; mesh_calc_modifiers(depsgraph, scene, ob, true, need_mapping, dataMask, -1, true, true, &mesh_deform_eval, &mesh_eval, &geometry_set_eval); /* The modifier stack evaluation is storing result in mesh->runtime.mesh_eval, but this result * is not guaranteed to be owned by object. * * Check ownership now, since later on we can not go to a mesh owned by someone else via * object's runtime: this could cause access freed data on depsgraph destruction (mesh who owns * the final result might be freed prior to object). */ Mesh *mesh = (Mesh *)ob->data; const bool is_mesh_eval_owned = (mesh_eval != mesh->runtime.mesh_eval); BKE_object_eval_assign_data(ob, &mesh_eval->id, is_mesh_eval_owned); /* Add the final mesh as a non-owning component to the geometry set. */ MeshComponent &mesh_component = geometry_set_eval->get_component_for_write(); mesh_component.replace(mesh_eval, GeometryOwnershipType::Editable); ob->runtime.geometry_set_eval = geometry_set_eval; ob->runtime.mesh_deform_eval = mesh_deform_eval; ob->runtime.last_data_mask = *dataMask; ob->runtime.last_need_mapping = need_mapping; BKE_object_boundbox_calc_from_mesh(ob, mesh_eval); /* Make sure that drivers can target shapekey properties. * Note that this causes a potential inconsistency, as the shapekey may have a * different topology than the evaluated mesh. */ BLI_assert(mesh->key == nullptr || DEG_is_evaluated_id(&mesh->key->id)); mesh_eval->key = mesh->key; if ((ob->mode & OB_MODE_ALL_SCULPT) && ob->sculpt) { if (DEG_is_active(depsgraph)) { BKE_sculpt_update_object_after_eval(depsgraph, ob); } } mesh_runtime_check_normals_valid(mesh_eval); mesh_build_extra_data(depsgraph, ob, mesh_eval); } static void editbmesh_build_data(struct Depsgraph *depsgraph, Scene *scene, Object *obedit, BMEditMesh *em, CustomData_MeshMasks *dataMask) { BLI_assert(obedit->id.tag & LIB_TAG_COPIED_ON_WRITE); BKE_object_free_derived_caches(obedit); if (DEG_is_active(depsgraph)) { BKE_sculpt_update_object_before_eval(obedit); } BKE_editmesh_free_derived_caches(em); Mesh *me_cage; Mesh *me_final; GeometrySet *non_mesh_components; editbmesh_calc_modifiers( depsgraph, scene, obedit, em, dataMask, &me_cage, &me_final, &non_mesh_components); em->mesh_eval_final = me_final; em->mesh_eval_cage = me_cage; obedit->runtime.geometry_set_eval = non_mesh_components; 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); DEG_get_customdata_mask_for_object(depsgraph, ob, r_mask); if (r_need_mapping) { *r_need_mapping = false; } /* Must never access original objects when dependency graph is not active: it might be already * freed. */ if (!DEG_is_active(depsgraph)) { return; } Object *actob = view_layer->basact ? DEG_get_original_object(view_layer->basact->object) : nullptr; 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_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); Mesh *mesh_eval = BKE_object_get_evaluated_mesh(ob); if ((mesh_eval == nullptr) || !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); mesh_eval = BKE_object_get_evaluated_mesh(ob); } if (mesh_eval != nullptr) { BLI_assert(!(mesh_eval->runtime.cd_dirty_vert & CD_MASK_NORMAL)); } return 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_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(Depsgraph *depsgraph, Scene *scene, Object *ob, const CustomData_MeshMasks *dataMask) { Mesh *result; mesh_calc_modifiers( depsgraph, scene, ob, true, false, dataMask, -1, false, false, nullptr, &result, nullptr); return result; } Mesh *mesh_create_eval_final_index_render(Depsgraph *depsgraph, Scene *scene, Object *ob, const CustomData_MeshMasks *dataMask, int index) { Mesh *result; mesh_calc_modifiers( depsgraph, scene, ob, true, false, dataMask, index, false, false, nullptr, &result, nullptr); return result; } Mesh *mesh_create_eval_no_deform(Depsgraph *depsgraph, Scene *scene, Object *ob, const CustomData_MeshMasks *dataMask) { Mesh *result; mesh_calc_modifiers( depsgraph, scene, ob, false, false, dataMask, -1, false, false, nullptr, &result, nullptr); return result; } Mesh *mesh_create_eval_no_deform_render(Depsgraph *depsgraph, Scene *scene, Object *ob, const CustomData_MeshMasks *dataMask) { Mesh *result; mesh_calc_modifiers( depsgraph, scene, ob, false, false, dataMask, -1, false, false, nullptr, &result, nullptr); return result; } /***/ 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, nullptr); 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, nullptr); 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, 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 */ struct MappedUserData { float (*vertexcos)[3]; BLI_bitmap *vertex_visit; }; 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, (const float(*)[3])CustomData_get_layer(&dm->polyData, CD_NORMAL), (const float(*)[3])dm->getLoopDataArray(dm, CD_NORMAL), (const float(*)[3])dm->getVertDataArray(dm, CD_ORCO), /* may be nullptr */ /* 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 = (OrigSpaceLoop *)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; blender::Vector vcos_2d; for (i = 0; i < numpoly; i++, mp++) { OrigSpaceLoop *lof = lof_array + mp->loopstart; if (ELEM(mp->totloop, 3, 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); vcos_2d.resize(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); } /* 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); } 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(nullptr, 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), (MDeformVert *)dm->getVertDataArray(dm, CD_MDEFORMVERT), do_verbose, do_fixes, &changed); BLI_assert(changed == false); return is_valid; } #endif /* NDEBUG */