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/*
* ***** 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.
*
* ***** END GPL LICENSE BLOCK *****
*
*/
/** \file blender/modifiers/intern/MOD_wireframe.c
* \ingroup modifiers
*/
#include "DNA_object_types.h"
#include "BLI_utildefines.h"
#include "BKE_cdderivedmesh.h"
#include "BKE_deform.h"
#include "MOD_modifiertypes.h"
#include "bmesh.h"
#include "tools/bmesh_wireframe.h"
static void initData(ModifierData *md)
{
WireframeModifierData *wmd = (WireframeModifierData *)md;
wmd->offset = 0.02f;
wmd->flag = MOD_WIREFRAME_REPLACE | MOD_WIREFRAME_OFS_EVEN;
wmd->crease_weight = 1.0f;
}
static CustomDataMask requiredDataMask(Object *UNUSED(ob), ModifierData *md)
{
WireframeModifierData *wmd = (WireframeModifierData *)md;
CustomDataMask dataMask = 0;
/* ask for vertexgroups if we need them */
if (wmd->defgrp_name[0]) dataMask |= CD_MASK_MDEFORMVERT;
return dataMask;
}
static bool dependsOnNormals(ModifierData *UNUSED(md))
{
return true;
}
static DerivedMesh *WireframeModifier_do(WireframeModifierData *wmd, Object *ob, DerivedMesh *dm)
{
DerivedMesh *result;
BMesh *bm;
const int defgrp_index = defgroup_name_index(ob, wmd->defgrp_name);
bm = DM_to_bmesh(dm, true);
BM_mesh_wireframe(
bm,
wmd->offset, wmd->offset_fac, wmd->offset_fac_vg,
(wmd->flag & MOD_WIREFRAME_REPLACE) != 0,
(wmd->flag & MOD_WIREFRAME_BOUNDARY) != 0,
(wmd->flag & MOD_WIREFRAME_OFS_EVEN) != 0,
(wmd->flag & MOD_WIREFRAME_OFS_RELATIVE) != 0,
(wmd->flag & MOD_WIREFRAME_CREASE) != 0,
wmd->crease_weight,
defgrp_index,
(wmd->flag & MOD_WIREFRAME_INVERT_VGROUP) != 0,
wmd->mat_ofs,
MAX2(ob->totcol - 1, 0),
false);
result = CDDM_from_bmesh(bm, true);
BM_mesh_free(bm);
result->dirty |= DM_DIRTY_NORMALS;
return result;
}
static DerivedMesh *applyModifier(ModifierData *md, Object *ob, DerivedMesh *dm, ModifierApplyFlag UNUSED(flag))
{
return WireframeModifier_do((WireframeModifierData *)md, ob, dm);
}
ModifierTypeInfo modifierType_Wireframe = {
/* name */ "Wireframe",
/* structName */ "WireframeModifierData",
/* structSize */ sizeof(WireframeModifierData),
/* type */ eModifierTypeType_Constructive,
/* flags */ eModifierTypeFlag_AcceptsMesh |
eModifierTypeFlag_SupportsEditmode,
/* copyData */ modifier_copyData_generic,
/* deformVerts */ NULL,
/* deformMatrices */ NULL,
/* deformVertsEM */ NULL,
/* deformMatricesEM */ NULL,
/* applyModifier */ applyModifier,
/* applyModifierEM */ NULL,
/* initData */ initData,
/* requiredDataMask */ requiredDataMask,
/* freeData */ NULL,
/* isDisabled */ NULL,
/* updateDepgraph */ NULL,
/* updateDepsgraph */ NULL,
/* dependsOnTime */ NULL,
/* dependsOnNormals */ dependsOnNormals,
/* foreachObjectLink */ NULL,
/* foreachIDLink */ NULL,
/* foreachTexLink */ NULL,
};
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