/* * ***** BEGIN GPL LICENSE BLOCK ***** * * 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 by the Blender Foundation. * All rights reserved. * * Contributor(s): Daniel Dunbar * Ton Roosendaal, * Ben Batt, * Brecht Van Lommel, * Campbell Barton * * ***** END GPL LICENSE BLOCK ***** * */ /** \file blender/modifiers/intern/MOD_bevel.c * \ingroup modifiers */ #include "DNA_object_types.h" #include "BLI_utildefines.h" #include "BLI_math.h" #include "BLI_string.h" #include "BKE_cdderivedmesh.h" #include "BKE_deform.h" #include "BKE_modifier.h" #include "MOD_util.h" #include "bmesh.h" #include "bmesh_tools.h" static void initData(ModifierData *md) { BevelModifierData *bmd = (BevelModifierData *) md; bmd->value = 0.1f; bmd->res = 1; bmd->flags = 0; bmd->val_flags = MOD_BEVEL_AMT_OFFSET; bmd->lim_flags = 0; bmd->e_flags = 0; bmd->mat = -1; bmd->profile = 0.5f; bmd->bevel_angle = DEG2RADF(30.0f); bmd->defgrp_name[0] = '\0'; } static void copyData(ModifierData *md, ModifierData *target) { BevelModifierData *bmd = (BevelModifierData *) md; BevelModifierData *tbmd = (BevelModifierData *) target; tbmd->value = bmd->value; tbmd->res = bmd->res; tbmd->flags = bmd->flags; tbmd->val_flags = bmd->val_flags; tbmd->lim_flags = bmd->lim_flags; tbmd->e_flags = bmd->e_flags; tbmd->mat = bmd->mat; tbmd->profile = bmd->profile; tbmd->bevel_angle = bmd->bevel_angle; BLI_strncpy(tbmd->defgrp_name, bmd->defgrp_name, sizeof(tbmd->defgrp_name)); } static CustomDataMask requiredDataMask(Object *UNUSED(ob), ModifierData *md) { BevelModifierData *bmd = (BevelModifierData *)md; CustomDataMask dataMask = 0; /* ask for vertexgroups if we need them */ if (bmd->defgrp_name[0]) dataMask |= CD_MASK_MDEFORMVERT; return dataMask; } /* * This calls the new bevel code (added since 2.64) */ static DerivedMesh *applyModifier(ModifierData *md, struct Object *ob, DerivedMesh *dm, ModifierApplyFlag UNUSED(flag)) { DerivedMesh *result; BMesh *bm; BMIter iter; BMEdge *e; BMVert *v; float weight, weight2; int vgroup = -1; MDeformVert *dvert = NULL; BevelModifierData *bmd = (BevelModifierData *) md; const float threshold = cosf(bmd->bevel_angle + 0.000000175f); const bool vertex_only = (bmd->flags & MOD_BEVEL_VERT) != 0; const bool do_clamp = !(bmd->flags & MOD_BEVEL_OVERLAP_OK); const int offset_type = bmd->val_flags; const int mat = CLAMPIS(bmd->mat, -1, ob->totcol - 1); bm = DM_to_bmesh(dm, true); if ((bmd->lim_flags & MOD_BEVEL_VGROUP) && bmd->defgrp_name[0]) modifier_get_vgroup(ob, dm, bmd->defgrp_name, &dvert, &vgroup); if (vertex_only) { BM_ITER_MESH (v, &iter, bm, BM_VERTS_OF_MESH) { if (!BM_vert_is_manifold(v)) continue; if (bmd->lim_flags & MOD_BEVEL_WEIGHT) { weight = BM_elem_float_data_get(&bm->vdata, v, CD_BWEIGHT); if (weight == 0.0f) continue; } else if (vgroup != -1) { weight = defvert_array_find_weight_safe(dvert, BM_elem_index_get(v), vgroup); /* Check is against 0.5 rather than != 0.0 because cascaded bevel modifiers will * interpolate weights for newly created vertices, and may cause unexpected "selection" */ if (weight < 0.5f) continue; } BM_elem_flag_enable(v, BM_ELEM_TAG); } } else if (bmd->lim_flags & MOD_BEVEL_ANGLE) { BM_ITER_MESH (e, &iter, bm, BM_EDGES_OF_MESH) { /* check for 1 edge having 2 face users */ BMLoop *l_a, *l_b; if (BM_edge_loop_pair(e, &l_a, &l_b)) { if (dot_v3v3(l_a->f->no, l_b->f->no) < threshold) { BM_elem_flag_enable(e, BM_ELEM_TAG); BM_elem_flag_enable(e->v1, BM_ELEM_TAG); BM_elem_flag_enable(e->v2, BM_ELEM_TAG); } } } } else { /* crummy, is there a way just to operator on all? - campbell */ BM_ITER_MESH (e, &iter, bm, BM_EDGES_OF_MESH) { if (BM_edge_is_manifold(e)) { if (bmd->lim_flags & MOD_BEVEL_WEIGHT) { weight = BM_elem_float_data_get(&bm->edata, e, CD_BWEIGHT); if (weight == 0.0f) continue; } else if (vgroup != -1) { weight = defvert_array_find_weight_safe(dvert, BM_elem_index_get(e->v1), vgroup); weight2 = defvert_array_find_weight_safe(dvert, BM_elem_index_get(e->v2), vgroup); if (weight < 0.5f || weight2 < 0.5f) continue; } BM_elem_flag_enable(e, BM_ELEM_TAG); BM_elem_flag_enable(e->v1, BM_ELEM_TAG); BM_elem_flag_enable(e->v2, BM_ELEM_TAG); } } } BM_mesh_bevel(bm, bmd->value, offset_type, bmd->res, bmd->profile, vertex_only, bmd->lim_flags & MOD_BEVEL_WEIGHT, do_clamp, dvert, vgroup, mat); result = CDDM_from_bmesh(bm, true); BLI_assert(bm->vtoolflagpool == NULL && bm->etoolflagpool == NULL && bm->ftoolflagpool == NULL); /* make sure we never alloc'd these */ BM_mesh_free(bm); result->dirty |= DM_DIRTY_NORMALS; return result; } static bool dependsOnNormals(ModifierData *UNUSED(md)) { return true; } ModifierTypeInfo modifierType_Bevel = { /* name */ "Bevel", /* structName */ "BevelModifierData", /* structSize */ sizeof(BevelModifierData), /* type */ eModifierTypeType_Constructive, /* flags */ eModifierTypeFlag_AcceptsMesh | eModifierTypeFlag_SupportsEditmode | eModifierTypeFlag_EnableInEditmode, /* copyData */ copyData, /* deformVerts */ NULL, /* deformMatrices */ NULL, /* deformVertsEM */ NULL, /* deformMatricesEM */ NULL, /* applyModifier */ applyModifier, /* applyModifierEM */ NULL, /* initData */ initData, /* requiredDataMask */ requiredDataMask, /* freeData */ NULL, /* isDisabled */ NULL, /* updateDepgraph */ NULL, /* dependsOnTime */ NULL, /* dependsOnNormals */ dependsOnNormals, /* foreachObjectLink */ NULL, /* foreachIDLink */ NULL, /* foreachTexLink */ NULL, };