diff options
Diffstat (limited to 'source/blender/bmesh/intern/bmesh_mesh_convert.cc')
| -rw-r--r-- | source/blender/bmesh/intern/bmesh_mesh_convert.cc | 54 |
1 files changed, 41 insertions, 13 deletions
diff --git a/source/blender/bmesh/intern/bmesh_mesh_convert.cc b/source/blender/bmesh/intern/bmesh_mesh_convert.cc index 4e0e27cd051..47ad5080451 100644 --- a/source/blender/bmesh/intern/bmesh_mesh_convert.cc +++ b/source/blender/bmesh/intern/bmesh_mesh_convert.cc @@ -363,6 +363,8 @@ void BM_mesh_bm_from_me(BMesh *bm, const Mesh *me, const struct BMeshFromMeshPar &me->edata, CD_PROP_BOOL, ".hide_edge"); const bool *hide_poly = (const bool *)CustomData_get_layer_named( &me->pdata, CD_PROP_BOOL, ".hide_poly"); + const int *material_indices = (const int *)CustomData_get_layer_named( + &me->pdata, CD_PROP_INT32, "material_index"); Span<MVert> mvert{me->mvert, me->totvert}; Array<BMVert *> vtable(me->totvert); @@ -484,7 +486,7 @@ void BM_mesh_bm_from_me(BMesh *bm, const Mesh *me, const struct BMeshFromMeshPar BM_face_select_set(bm, f, true); } - f->mat_nr = mpoly[i].mat_nr; + f->mat_nr = material_indices == NULL ? 0 : material_indices[i]; if (i == me->act_face) { bm->act_face = f; } @@ -923,16 +925,16 @@ BLI_INLINE void bmesh_quick_edgedraw_flag(MEdge *med, BMEdge *e) } } -template<typename GetFn> -static void write_elem_flag_to_attribute(blender::bke::MutableAttributeAccessor &attributes, - const StringRef attribute_name, - const eAttrDomain domain, - const bool do_write, - const GetFn &get_fn) +template<typename T, typename GetFn> +static void write_fn_to_attribute(blender::bke::MutableAttributeAccessor attributes, + const StringRef attribute_name, + const eAttrDomain domain, + const bool do_write, + const GetFn &get_fn) { using namespace blender; if (do_write) { - bke::SpanAttributeWriter<bool> attribute = attributes.lookup_or_add_for_write_only_span<bool>( + bke::SpanAttributeWriter<T> attribute = attributes.lookup_or_add_for_write_only_span<T>( attribute_name, domain); threading::parallel_for(attribute.span.index_range(), 4096, [&](IndexRange range) { for (const int i : range) { @@ -966,15 +968,15 @@ static void convert_bmesh_hide_flags_to_mesh_attributes(BMesh &bm, bke::MutableAttributeAccessor attributes = bke::mesh_attributes_for_write(mesh); BM_mesh_elem_table_ensure(&bm, BM_VERT | BM_EDGE | BM_FACE); - write_elem_flag_to_attribute( + write_fn_to_attribute<bool>( attributes, ".hide_vert", ATTR_DOMAIN_POINT, need_hide_vert, [&](const int i) { return BM_elem_flag_test(BM_vert_at_index(&bm, i), BM_ELEM_HIDDEN); }); - write_elem_flag_to_attribute( + write_fn_to_attribute<bool>( attributes, ".hide_edge", ATTR_DOMAIN_EDGE, need_hide_edge, [&](const int i) { return BM_elem_flag_test(BM_edge_at_index(&bm, i), BM_ELEM_HIDDEN); }); - write_elem_flag_to_attribute( + write_fn_to_attribute<bool>( attributes, ".hide_poly", ATTR_DOMAIN_FACE, need_hide_poly, [&](const int i) { return BM_elem_flag_test(BM_face_at_index(&bm, i), BM_ELEM_HIDDEN); }); @@ -1039,6 +1041,7 @@ void BM_mesh_bm_to_me(Main *bmain, BMesh *bm, Mesh *me, const struct BMeshToMesh bool need_hide_vert = false; bool need_hide_edge = false; bool need_hide_poly = false; + bool need_material_index = false; /* Clear normals on the mesh completely, since the original vertex and polygon count might be * different than the BMesh's. */ @@ -1111,7 +1114,9 @@ void BM_mesh_bm_to_me(Main *bmain, BMesh *bm, Mesh *me, const struct BMeshToMesh BMLoop *l_iter, *l_first; mpoly->loopstart = j; mpoly->totloop = f->len; - mpoly->mat_nr = f->mat_nr; + if (f->mat_nr != 0) { + need_material_index = true; + } mpoly->flag = BM_face_flag_to_mflag(f); if (BM_elem_flag_test(f, BM_ELEM_HIDDEN)) { need_hide_poly = true; @@ -1144,6 +1149,16 @@ void BM_mesh_bm_to_me(Main *bmain, BMesh *bm, Mesh *me, const struct BMeshToMesh BM_CHECK_ELEMENT(f); } + if (need_material_index) { + BM_mesh_elem_table_ensure(bm, BM_FACE); + write_fn_to_attribute<int>( + blender::bke::mesh_attributes_for_write(*me), + "material_index", + ATTR_DOMAIN_FACE, + true, + [&](const int i) { return static_cast<int>(BM_face_at_index(bm, i)->mat_nr); }); + } + /* Patch hook indices and vertex parents. */ if (params->calc_object_remap && (ototvert > 0)) { BLI_assert(bmain != nullptr); @@ -1307,6 +1322,7 @@ void BM_mesh_bm_to_me_for_eval(BMesh *bm, Mesh *me, const CustomData_MeshMasks * bool need_hide_vert = false; bool need_hide_edge = false; bool need_hide_poly = false; + bool need_material_index = false; /* Clear normals on the mesh completely, since the original vertex and polygon count might be * different than the BMesh's. */ @@ -1385,7 +1401,9 @@ void BM_mesh_bm_to_me_for_eval(BMesh *bm, Mesh *me, const CustomData_MeshMasks * } mp->loopstart = j; - mp->mat_nr = efa->mat_nr; + if (efa->mat_nr != 0) { + need_material_index = true; + } l_iter = l_first = BM_FACE_FIRST_LOOP(efa); do { @@ -1403,6 +1421,16 @@ void BM_mesh_bm_to_me_for_eval(BMesh *bm, Mesh *me, const CustomData_MeshMasks * } bm->elem_index_dirty &= ~(BM_FACE | BM_LOOP); + if (need_material_index) { + BM_mesh_elem_table_ensure(bm, BM_FACE); + write_fn_to_attribute<int>( + blender::bke::mesh_attributes_for_write(*me), + "material_index", + ATTR_DOMAIN_FACE, + true, + [&](const int i) { return static_cast<int>(BM_face_at_index(bm, i)->mat_nr); }); + } + convert_bmesh_hide_flags_to_mesh_attributes( *bm, need_hide_vert, need_hide_edge, need_hide_poly, *me); |