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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.
*
* The Original Code is Copyright (C) Blender Foundation
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/blenkernel/intern/fluidsim.c
* \ingroup bke
*/
// headers for fluidsim bobj meshes
#include <stdlib.h>
#include <zlib.h>
#include <string.h>
#include <stdio.h>
#include "MEM_guardedalloc.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_object_fluidsim.h"
#include "DNA_object_force.h" // for pointcache
#include "DNA_object_types.h"
#include "DNA_particle_types.h"
#include "DNA_scene_types.h"
#include "BLI_math.h"
#include "BLI_blenlib.h"
#include "BLI_utildefines.h"
#include "BKE_cdderivedmesh.h"
#include "BKE_customdata.h"
#include "BKE_DerivedMesh.h"
#include "BKE_fluidsim.h"
#include "BKE_global.h"
#include "BKE_modifier.h"
#include "BKE_mesh.h"
/* ************************* fluidsim bobj file handling **************************** */
//-------------------------------------------------------------------------------
// file handling
//-------------------------------------------------------------------------------
void initElbeemMesh(struct Scene *scene, struct Object *ob,
int *numVertices, float **vertices,
int *numTriangles, int **triangles,
int useGlobalCoords, int modifierIndex)
{
DerivedMesh *dm = NULL;
MVert *mvert;
MFace *mface;
int countTris = 0, i, totvert, totface;
float *verts;
int *tris;
dm = mesh_create_derived_index_render(scene, ob, CD_MASK_BAREMESH, modifierIndex);
DM_ensure_tessface(dm);
mvert = dm->getVertArray(dm);
mface = dm->getTessFaceArray(dm);
totvert = dm->getNumVerts(dm);
totface = dm->getNumTessFaces(dm);
*numVertices = totvert;
verts = MEM_callocN(totvert * 3 * sizeof(float), "elbeemmesh_vertices");
for (i = 0; i < totvert; i++) {
copy_v3_v3(&verts[i * 3], mvert[i].co);
if (useGlobalCoords) { mul_m4_v3(ob->obmat, &verts[i * 3]); }
}
*vertices = verts;
for (i = 0; i < totface; i++) {
countTris++;
if (mface[i].v4) { countTris++; }
}
*numTriangles = countTris;
tris = MEM_callocN(countTris * 3 * sizeof(int), "elbeemmesh_triangles");
countTris = 0;
for (i = 0; i < totface; i++) {
int face[4];
face[0] = mface[i].v1;
face[1] = mface[i].v2;
face[2] = mface[i].v3;
face[3] = mface[i].v4;
tris[countTris * 3 + 0] = face[0];
tris[countTris * 3 + 1] = face[1];
tris[countTris * 3 + 2] = face[2];
countTris++;
if (face[3]) {
tris[countTris * 3 + 0] = face[0];
tris[countTris * 3 + 1] = face[2];
tris[countTris * 3 + 2] = face[3];
countTris++;
}
}
*triangles = tris;
dm->release(dm);
}
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