diff options
Diffstat (limited to 'source/blender/editors')
| -rw-r--r-- | source/blender/editors/mesh/mesh_data.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/source/blender/editors/mesh/mesh_data.c b/source/blender/editors/mesh/mesh_data.c index bd7aaec075b..cfeda36214c 100644 --- a/source/blender/editors/mesh/mesh_data.c +++ b/source/blender/editors/mesh/mesh_data.c @@ -903,9 +903,38 @@ static int mesh_customdata_custom_splitnormals_add_exec(bContext *C, wmOperator CustomData *data = GET_CD_DATA(me, ldata); if (me->edit_btmesh) { + /* Tag edges as sharp according to smooth threshold if needed, to preserve autosmooth shading. */ + if (me->flag & ME_AUTOSMOOTH) { + BM_edges_sharp_from_angle_set(me->edit_btmesh->bm, me->smoothresh); + + me->drawflag |= ME_DRAWSHARP; + } + BM_data_layer_add(me->edit_btmesh->bm, data, CD_CUSTOMLOOPNORMAL); } else { + /* Tag edges as sharp according to smooth threshold if needed, to preserve autosmooth shading. */ + if (me->flag & ME_AUTOSMOOTH) { + float (*polynors)[3] = MEM_mallocN(sizeof(*polynors) * (size_t)me->totpoly, __func__); + + BKE_mesh_calc_normals_poly( + me->mvert, NULL, me->totvert, + me->mloop, me->mpoly, + me->totloop, me->totpoly, + polynors, true); + + BKE_edges_sharp_from_angle_set( + me->mvert, me->totvert, + me->medge, me->totedge, + me->mloop, me->totloop, + me->mpoly, polynors, me->totpoly, + me->smoothresh); + + MEM_freeN(polynors); + + me->drawflag |= ME_DRAWSHARP; + } + CustomData_add_layer(data, CD_CUSTOMLOOPNORMAL, CD_DEFAULT, NULL, me->totloop); } |