Howard Trickey
15c301f533
Have reconsidered and feel it best to try matching previous behavior (doing "loop slides" where possible) as default. This will avoid the need to change regression tests, among other things.
224 lines
6.7 KiB
C
224 lines
6.7 KiB
C
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2005 by the Blender Foundation.
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* All rights reserved.
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*
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* Contributor(s): Daniel Dunbar
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* Ton Roosendaal,
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* Ben Batt,
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* Brecht Van Lommel,
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* Campbell Barton
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*
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* ***** END GPL LICENSE BLOCK *****
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*
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*/
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/** \file blender/modifiers/intern/MOD_bevel.c
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* \ingroup modifiers
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*/
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#include "DNA_object_types.h"
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#include "BLI_utildefines.h"
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#include "BLI_math.h"
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#include "BLI_string.h"
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#include "BKE_cdderivedmesh.h"
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#include "BKE_deform.h"
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#include "BKE_modifier.h"
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#include "MOD_util.h"
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#include "bmesh.h"
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#include "bmesh_tools.h"
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static void initData(ModifierData *md)
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{
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BevelModifierData *bmd = (BevelModifierData *) md;
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bmd->value = 0.1f;
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bmd->res = 1;
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bmd->flags = 0;
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bmd->val_flags = MOD_BEVEL_AMT_OFFSET;
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bmd->lim_flags = 0;
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bmd->e_flags = 0;
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bmd->mat = -1;
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bmd->profile = 0.5f;
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bmd->bevel_angle = DEG2RADF(30.0f);
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bmd->defgrp_name[0] = '\0';
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}
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static void copyData(ModifierData *md, ModifierData *target)
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{
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BevelModifierData *bmd = (BevelModifierData *) md;
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BevelModifierData *tbmd = (BevelModifierData *) target;
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tbmd->value = bmd->value;
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tbmd->res = bmd->res;
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tbmd->flags = bmd->flags;
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tbmd->val_flags = bmd->val_flags;
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tbmd->lim_flags = bmd->lim_flags;
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tbmd->e_flags = bmd->e_flags;
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tbmd->mat = bmd->mat;
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tbmd->profile = bmd->profile;
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tbmd->bevel_angle = bmd->bevel_angle;
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BLI_strncpy(tbmd->defgrp_name, bmd->defgrp_name, sizeof(tbmd->defgrp_name));
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}
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static CustomDataMask requiredDataMask(Object *UNUSED(ob), ModifierData *md)
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{
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BevelModifierData *bmd = (BevelModifierData *)md;
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CustomDataMask dataMask = 0;
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/* ask for vertexgroups if we need them */
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if (bmd->defgrp_name[0]) dataMask |= CD_MASK_MDEFORMVERT;
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return dataMask;
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}
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/*
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* This calls the new bevel code (added since 2.64)
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*/
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static DerivedMesh *applyModifier(ModifierData *md, struct Object *ob,
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DerivedMesh *dm,
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ModifierApplyFlag UNUSED(flag))
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{
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DerivedMesh *result;
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BMesh *bm;
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BMIter iter;
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BMEdge *e;
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BMVert *v;
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float weight, weight2;
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int vgroup = -1;
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MDeformVert *dvert = NULL;
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BevelModifierData *bmd = (BevelModifierData *) md;
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const float threshold = cosf(bmd->bevel_angle + 0.000000175f);
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const bool vertex_only = (bmd->flags & MOD_BEVEL_VERT) != 0;
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const bool do_clamp = !(bmd->flags & MOD_BEVEL_OVERLAP_OK);
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const int offset_type = bmd->val_flags;
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const int mat = CLAMPIS(bmd->mat, -1, ob->totcol - 1);
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const bool loop_slide = (bmd->flags & MOD_BEVEL_EVEN_WIDTHS) == 0;
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bm = DM_to_bmesh(dm, true);
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if ((bmd->lim_flags & MOD_BEVEL_VGROUP) && bmd->defgrp_name[0])
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modifier_get_vgroup(ob, dm, bmd->defgrp_name, &dvert, &vgroup);
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if (vertex_only) {
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BM_ITER_MESH (v, &iter, bm, BM_VERTS_OF_MESH) {
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if (!BM_vert_is_manifold(v))
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continue;
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if (bmd->lim_flags & MOD_BEVEL_WEIGHT) {
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weight = BM_elem_float_data_get(&bm->vdata, v, CD_BWEIGHT);
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if (weight == 0.0f)
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continue;
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}
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else if (vgroup != -1) {
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weight = defvert_array_find_weight_safe(dvert, BM_elem_index_get(v), vgroup);
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/* Check is against 0.5 rather than != 0.0 because cascaded bevel modifiers will
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* interpolate weights for newly created vertices, and may cause unexpected "selection" */
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if (weight < 0.5f)
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continue;
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}
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BM_elem_flag_enable(v, BM_ELEM_TAG);
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}
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}
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else if (bmd->lim_flags & MOD_BEVEL_ANGLE) {
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BM_ITER_MESH (e, &iter, bm, BM_EDGES_OF_MESH) {
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/* check for 1 edge having 2 face users */
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BMLoop *l_a, *l_b;
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if (BM_edge_loop_pair(e, &l_a, &l_b)) {
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if (dot_v3v3(l_a->f->no, l_b->f->no) < threshold) {
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BM_elem_flag_enable(e, BM_ELEM_TAG);
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BM_elem_flag_enable(e->v1, BM_ELEM_TAG);
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BM_elem_flag_enable(e->v2, BM_ELEM_TAG);
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}
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}
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}
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}
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else {
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/* crummy, is there a way just to operator on all? - campbell */
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BM_ITER_MESH (e, &iter, bm, BM_EDGES_OF_MESH) {
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if (BM_edge_is_manifold(e)) {
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if (bmd->lim_flags & MOD_BEVEL_WEIGHT) {
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weight = BM_elem_float_data_get(&bm->edata, e, CD_BWEIGHT);
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if (weight == 0.0f)
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continue;
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}
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else if (vgroup != -1) {
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weight = defvert_array_find_weight_safe(dvert, BM_elem_index_get(e->v1), vgroup);
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weight2 = defvert_array_find_weight_safe(dvert, BM_elem_index_get(e->v2), vgroup);
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if (weight < 0.5f || weight2 < 0.5f)
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continue;
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}
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BM_elem_flag_enable(e, BM_ELEM_TAG);
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BM_elem_flag_enable(e->v1, BM_ELEM_TAG);
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BM_elem_flag_enable(e->v2, BM_ELEM_TAG);
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}
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}
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}
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BM_mesh_bevel(bm, bmd->value, offset_type, bmd->res, bmd->profile,
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vertex_only, bmd->lim_flags & MOD_BEVEL_WEIGHT, do_clamp,
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dvert, vgroup, mat, loop_slide);
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result = CDDM_from_bmesh(bm, true);
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BLI_assert(bm->vtoolflagpool == NULL &&
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bm->etoolflagpool == NULL &&
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bm->ftoolflagpool == NULL); /* make sure we never alloc'd these */
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BM_mesh_free(bm);
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result->dirty |= DM_DIRTY_NORMALS;
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return result;
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}
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static bool dependsOnNormals(ModifierData *UNUSED(md))
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{
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return true;
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}
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ModifierTypeInfo modifierType_Bevel = {
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/* name */ "Bevel",
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/* structName */ "BevelModifierData",
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/* structSize */ sizeof(BevelModifierData),
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/* type */ eModifierTypeType_Constructive,
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/* flags */ eModifierTypeFlag_AcceptsMesh |
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eModifierTypeFlag_SupportsEditmode |
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eModifierTypeFlag_EnableInEditmode,
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/* copyData */ copyData,
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/* deformVerts */ NULL,
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/* deformMatrices */ NULL,
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/* deformVertsEM */ NULL,
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/* deformMatricesEM */ NULL,
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/* applyModifier */ applyModifier,
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/* applyModifierEM */ NULL,
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/* initData */ initData,
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/* requiredDataMask */ requiredDataMask,
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/* freeData */ NULL,
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/* isDisabled */ NULL,
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/* updateDepgraph */ NULL,
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/* updateDepsgraph */ NULL,
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/* dependsOnTime */ NULL,
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/* dependsOnNormals */ dependsOnNormals,
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/* foreachObjectLink */ NULL,
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/* foreachIDLink */ NULL,
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/* foreachTexLink */ NULL,
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};
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