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/*
* 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.
*/
/** \file blender/modifiers/intern/MOD_triangulate.c
* \ingroup modifiers
*/
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_object_types.h"
#include "BLI_utildefines.h"
#include "BKE_modifier.h"
#include "BKE_mesh.h"
#include "bmesh.h"
#include "bmesh_tools.h"
#include "MOD_modifiertypes.h"
static Mesh *triangulate_mesh(Mesh *mesh, const int quad_method, const int ngon_method)
{
Mesh *result;
BMesh *bm;
int total_edges, i;
MEdge *me;
bm = BKE_mesh_to_bmesh_ex(
mesh,
&((struct BMeshCreateParams){0}),
&((struct BMeshFromMeshParams){
.calc_face_normal = true,
.cd_mask_extra = CD_MASK_ORIGINDEX,
}));
BM_mesh_triangulate(bm, quad_method, ngon_method, false, NULL, NULL, NULL);
result = BKE_mesh_from_bmesh_for_eval_nomain(bm, 0);
BM_mesh_free(bm);
total_edges = result->totedge;
me = result->medge;
/* force drawing of all edges (seems to be omitted in CDDM_from_bmesh) */
for (i = 0; i < total_edges; i++, me++)
me->flag |= ME_EDGEDRAW | ME_EDGERENDER;
result->runtime.cd_dirty_vert |= CD_MASK_NORMAL;
return result;
}
static void initData(ModifierData *md)
{
TriangulateModifierData *tmd = (TriangulateModifierData *)md;
/* Enable in editmode by default */
md->mode |= eModifierMode_Editmode;
tmd->quad_method = MOD_TRIANGULATE_QUAD_SHORTEDGE;
tmd->ngon_method = MOD_TRIANGULATE_NGON_BEAUTY;
}
static Mesh *applyModifier(
ModifierData *md,
const ModifierEvalContext *UNUSED(ctx),
Mesh *mesh)
{
TriangulateModifierData *tmd = (TriangulateModifierData *)md;
Mesh *result;
if (!(result = triangulate_mesh(mesh, tmd->quad_method, tmd->ngon_method))) {
return mesh;
}
return result;
}
ModifierTypeInfo modifierType_Triangulate = {
/* name */ "Triangulate",
/* structName */ "TriangulateModifierData",
/* structSize */ sizeof(TriangulateModifierData),
/* type */ eModifierTypeType_Constructive,
/* flags */ eModifierTypeFlag_AcceptsMesh |
eModifierTypeFlag_SupportsEditmode |
eModifierTypeFlag_SupportsMapping |
eModifierTypeFlag_EnableInEditmode |
eModifierTypeFlag_AcceptsCVs,
/* copyData */ modifier_copyData_generic,
/* deformVerts_DM */ NULL,
/* deformMatrices_DM */ NULL,
/* deformVertsEM_DM */ NULL,
/* deformMatricesEM_DM*/NULL,
/* applyModifier_DM */ NULL,
/* deformVerts */ NULL,
/* deformMatrices */ NULL,
/* deformVertsEM */ NULL,
/* deformMatricesEM */ NULL,
/* applyModifier */ applyModifier,
/* initData */ initData,
/* requiredDataMask */ NULL, //requiredDataMask,
/* freeData */ NULL,
/* isDisabled */ NULL,
/* updateDepsgraph */ NULL,
/* dependsOnTime */ NULL,
/* dependsOnNormals */ NULL,
/* foreachObjectLink */ NULL,
/* foreachIDLink */ NULL,
};
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