diff options
Diffstat (limited to 'source/blender/blenkernel/intern/mesh_wrapper.cc')
| -rw-r--r-- | source/blender/blenkernel/intern/mesh_wrapper.cc | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/source/blender/blenkernel/intern/mesh_wrapper.cc b/source/blender/blenkernel/intern/mesh_wrapper.cc index 8291765c2ef..c505a74724b 100644 --- a/source/blender/blenkernel/intern/mesh_wrapper.cc +++ b/source/blender/blenkernel/intern/mesh_wrapper.cc @@ -340,9 +340,28 @@ static Mesh *mesh_wrapper_ensure_subdivision(const Object *ob, Mesh *me) /* Happens on bad topology, but also on empty input mesh. */ return me; } + const bool use_clnors = BKE_subsurf_modifier_use_custom_loop_normals(smd, me); + if (use_clnors) { + /* If custom normals are present and the option is turned on calculate the split + * normals and clear flag so the normals get interpolated to the result mesh. */ + BKE_mesh_calc_normals_split(me); + CustomData_clear_layer_flag(&me->ldata, CD_NORMAL, CD_FLAG_TEMPORARY); + } Mesh *subdiv_mesh = BKE_subdiv_to_mesh(subdiv, &mesh_settings, me); + if (use_clnors) { + float(*lnors)[3] = static_cast<float(*)[3]>( + CustomData_get_layer(&subdiv_mesh->ldata, CD_NORMAL)); + BLI_assert(lnors != NULL); + BKE_mesh_set_custom_normals(subdiv_mesh, lnors); + CustomData_set_layer_flag(&me->ldata, CD_NORMAL, CD_FLAG_TEMPORARY); + CustomData_set_layer_flag(&subdiv_mesh->ldata, CD_NORMAL, CD_FLAG_TEMPORARY); + } + else if (me->runtime.subsurf_do_loop_normals) { + BKE_mesh_calc_normals_split(subdiv_mesh); + } + if (subdiv != runtime_data->subdiv) { BKE_subdiv_free(subdiv); } |