Création d'un compte pour un collaborateur extérieur au laboratoire depuis l'intranet ICube : https://intranet.icube.unistra.fr/fr/labs/member/profile

importObjTex.hpp 44.3 KB
Newer Older
Pierre Kraemer's avatar
Pierre Kraemer committed
1
2
3
/*******************************************************************************
* CGoGN: Combinatorial and Geometric modeling with Generic N-dimensional Maps  *
* version 0.1                                                                  *
4
* Copyright (C) 2009-2012, IGG Team, LSIIT, University of Strasbourg           *
Pierre Kraemer's avatar
Pierre Kraemer committed
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
*                                                                              *
* This library is free software; you can redistribute it and/or modify it      *
* under the terms of the GNU Lesser General Public License as published by the *
* Free Software Foundation; either version 2.1 of the License, or (at your     *
* option) any later version.                                                   *
*                                                                              *
* This library 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 Lesser General Public License  *
* for more details.                                                            *
*                                                                              *
* You should have received a copy of the GNU Lesser General Public License     *
* along with this library; if not, write to the Free Software Foundation,      *
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.           *
*                                                                              *
20
* Web site: http://cgogn.unistra.fr/                                           *
Pierre Kraemer's avatar
Pierre Kraemer committed
21
22
23
24
* Contact information: cgogn@unistra.fr                                        *
*                                                                              *
*******************************************************************************/

Sylvain Thery's avatar
Sylvain Thery committed
25
#include "Topology/generic/attributeHandler.h"
26
#include "Topology/generic/autoAttributeHandler.h"
Sylvain Thery's avatar
Sylvain Thery committed
27
28
#include "Container/fakeAttribute.h"
#include <fstream>
Sylvain Thery's avatar
Sylvain Thery committed
29
#include <algorithm>
thery's avatar
thery committed
30

Pierre Kraemer's avatar
Pierre Kraemer committed
31
32
33
34
35

namespace CGoGN
{
namespace Algo
{
36
37
namespace Surface
{
Pierre Kraemer's avatar
Pierre Kraemer committed
38
39
40
namespace Import 
{

Sylvain Thery's avatar
Sylvain Thery committed
41

Sylvain Thery's avatar
Sylvain Thery committed
42
43
template <typename PFP>
OBJModel<PFP>::OBJModel(typename PFP::MAP& map):
Sylvain Thery's avatar
Sylvain Thery committed
44
	m_map(map), m_maxTextureSize(2048),
45
46
	m_tagV(0),m_tagVT(0),m_tagVN(0),m_tagG(0),m_tagF(0),
	m_specialVertices(map),m_dirtyEdges(map)
Sylvain Thery's avatar
Sylvain Thery committed
47
48
49
{
}

Sylvain Thery's avatar
Sylvain Thery committed
50
51
52
53
54
55
56
57

template <typename PFP>
OBJModel<PFP>::~OBJModel()
{
	for (std::vector<MaterialOBJ*>::iterator it = m_materials.begin(); it != m_materials.end(); ++it)
		delete *it;
}

Sylvain Thery's avatar
Sylvain Thery committed
58
59
60
61
62
63
64
65
66
67



template <typename PFP>
inline void OBJModel<PFP>::setMaxTextureSize(unsigned int mts)
{
	m_maxTextureSize = mts;
}


Sylvain Thery's avatar
Sylvain Thery committed
68
69
70
71
72
template <typename PFP>
inline typename PFP::VEC3 OBJModel<PFP>::getPosition(Dart d)
{
	return m_positions[d];
}
thery's avatar
thery committed
73

Sylvain Thery's avatar
Sylvain Thery committed
74

Sylvain Thery's avatar
Sylvain Thery committed
75

Sylvain Thery's avatar
Sylvain Thery committed
76
77
78
79
80
81
82
83
84
85
86
template <typename PFP>
inline typename PFP::VEC3 OBJModel<PFP>::getNormal(Dart d)
{
	if (m_specialVertices.isMarked(d))
		return m_normalsF[d];
	return m_normals[d];
}


template <typename PFP>
inline Geom::Vec2f OBJModel<PFP>::getTexCoord(Dart d)
thery's avatar
thery committed
87
{
Sylvain Thery's avatar
Sylvain Thery committed
88
89
90
91
92
93
	if (m_specialVertices.isMarked(d))
		return m_texCoordsF[d];
	return m_texCoords[d];
}


94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
template <typename PFP>
void OBJModel<PFP>::setPositionAttribute(VertexAttribute<Geom::Vec3f> position)
{
	m_positions = position;
}

template <typename PFP>
void OBJModel<PFP>::setNormalAttribute(VertexAttribute<Geom::Vec3f> normal)
{
	m_normals = normal;
}

template <typename PFP>
void OBJModel<PFP>::setTexCoordAttribute(VertexAttribute<Geom::Vec2f>texcoord)
{
	m_texCoords = texcoord;
}


Sylvain Thery's avatar
Sylvain Thery committed
113
114


Sylvain Thery's avatar
Sylvain Thery committed
115
116
117



Sylvain Thery's avatar
Sylvain Thery committed
118
template <typename PFP>
Sylvain Thery's avatar
Sylvain Thery committed
119
void OBJModel<PFP>::readMaterials(const std::string& filename)
Sylvain Thery's avatar
Sylvain Thery committed
120
{
Sylvain Thery's avatar
Sylvain Thery committed
121
122
123
124
125
126
127
	m_materials.reserve(m_materialNames.size());

	if (!filename.empty())
	{
		m_matFileName = filename;
	}

Sylvain Thery's avatar
Sylvain Thery committed
128
	// open file
Sylvain Thery's avatar
Sylvain Thery committed
129
	std::ifstream fp(m_matFileName.c_str());
Sylvain Thery's avatar
Sylvain Thery committed
130
131
	if (!fp.good())
	{
Sylvain Thery's avatar
Sylvain Thery committed
132
		CGoGNerr << "Unable to open file " << m_matFileName << CGoGNendl;
Thery Sylvain's avatar
Thery Sylvain committed
133
		return ;
Sylvain Thery's avatar
Sylvain Thery committed
134
135
	}
	
Sylvain Thery's avatar
Sylvain Thery committed
136
137
138
	MaterialOBJ* currentMat = NULL;

	m_materials.resize(m_materialNames.size(),NULL);
Sylvain Thery's avatar
Sylvain Thery committed
139

Sylvain Thery's avatar
Sylvain Thery committed
140
141
142
143
	std::string ligne;
	do
	{
		std::getline (fp, ligne);
Sylvain Thery's avatar
Sylvain Thery committed
144
145
146
		std::stringstream oss(ligne);
		std::string tag;
		oss >> tag;
Sylvain Thery's avatar
Sylvain Thery committed
147
148
		if (tag == "newmtl")
		{
Sylvain Thery's avatar
Sylvain Thery committed
149
150
151
			std::string name;
			oss >> name ;
			std::map<std::string,int>::iterator it = m_materialNames.find(name);
Sylvain Thery's avatar
Sylvain Thery committed
152
153
			if (it ==  m_materialNames.end())
			{
Sylvain Thery's avatar
Sylvain Thery committed
154
				CGoGNerr << "Skipping material "<< name << CGoGNendl;
Sylvain Thery's avatar
Sylvain Thery committed
155
156
157
158
159
160
161
162
				do
				{
					fp >> tag;
					
				}while (!fp.eof() && (tag == "new mtl")); 
			}
			else
			{
Sylvain Thery's avatar
Sylvain Thery committed
163
//				CGoGNout << "Reading material "<< name << CGoGNendl;
Sylvain Thery's avatar
Sylvain Thery committed
164
165
166
				currentMat = new MaterialOBJ();
				m_materials[it->second] = currentMat;
				currentMat->name = name;
Sylvain Thery's avatar
Sylvain Thery committed
167
168
			}
		}
Sylvain Thery's avatar
Sylvain Thery committed
169
		else if (currentMat != NULL)
Sylvain Thery's avatar
Sylvain Thery committed
170
171
172
		{
			if (tag == "Ka")
			{
Sylvain Thery's avatar
Sylvain Thery committed
173
174
175
				oss >> currentMat->ambiantColor[0];
				oss >> currentMat->ambiantColor[1];
				oss >> currentMat->ambiantColor[2];
Sylvain Thery's avatar
Sylvain Thery committed
176
177
178
			}
			if (tag == "Kd")
			{
Sylvain Thery's avatar
Sylvain Thery committed
179
180
181
182
				oss >> currentMat->diffuseColor[0];
				oss >> currentMat->diffuseColor[1];
				oss >> currentMat->diffuseColor[2];

Sylvain Thery's avatar
Sylvain Thery committed
183
184
185
			}
			if (tag == "Ks")
			{
Sylvain Thery's avatar
Sylvain Thery committed
186
187
188
				oss >> currentMat->specularColor[0];
				oss >> currentMat->specularColor[1];
				oss >> currentMat->specularColor[2];
Sylvain Thery's avatar
Sylvain Thery committed
189
190
191
			}
			if (tag == "Ns")
			{
Sylvain Thery's avatar
Sylvain Thery committed
192
				oss >> currentMat->shininess;
Sylvain Thery's avatar
Sylvain Thery committed
193
			}
Sylvain Thery's avatar
Sylvain Thery committed
194
195
			if (tag == "Tf")
			{
Sylvain Thery's avatar
Sylvain Thery committed
196
197
198
				oss >> currentMat->transparentFilter[0];
				oss >> currentMat->transparentFilter[1];
				oss >> currentMat->transparentFilter[2];
Sylvain Thery's avatar
Sylvain Thery committed
199
200
			}

Sylvain Thery's avatar
Sylvain Thery committed
201
202
203
204
205
206
			if ((tag == "illum"))
			{
				oss >> currentMat->illuminationModel;
			}


Sylvain Thery's avatar
Sylvain Thery committed
207
208
			if ((tag == "Tr") || (tag == "d"))
			{
Sylvain Thery's avatar
Sylvain Thery committed
209
				oss >> currentMat->transparency;
Sylvain Thery's avatar
Sylvain Thery committed
210
			}
Sylvain Thery's avatar
Sylvain Thery committed
211
			
Sylvain Thery's avatar
Sylvain Thery committed
212
			if (tag == "map_Kd") // diffuse texture
Sylvain Thery's avatar
Sylvain Thery committed
213
			{
Sylvain Thery's avatar
Sylvain Thery committed
214
215
216
217
218
219
220
221
222
223
				if (currentMat->textureDiffuse == NULL)
				{
					currentMat->textureDiffuse = new Utils::Texture<2,Geom::Vec3uc>(GL_UNSIGNED_BYTE);
					std::string buff;
					getline (oss, buff);
					std::string tname = buff.substr(buff.find_first_not_of(' '));
					if (tname[tname.length()-1] == '\r')
						tname = tname.substr(0,tname.length()-1);

					currentMat->textureDiffuse->load(m_matPath+tname);
Sylvain Thery's avatar
Sylvain Thery committed
224
//					CGoGNout << "Loading texture "<< m_matPath+tname << " -> "<<std::hex << currentMat->textureDiffuse <<std::dec<<CGoGNendl;
Sylvain Thery's avatar
Sylvain Thery committed
225
					currentMat->textureDiffuse->scaleNearest( currentMat->textureDiffuse->newMaxSize(m_maxTextureSize));
Sylvain Thery's avatar
Sylvain Thery committed
226
227
228
229
					currentMat->textureDiffuse->setFiltering(GL_LINEAR);
					currentMat->textureDiffuse->setWrapping(GL_REPEAT);
					currentMat->textureDiffuse->update();
				}
Sylvain Thery's avatar
Sylvain Thery committed
230
			}
Sylvain Thery's avatar
Sylvain Thery committed
231
232

			if (tag == "map_Ka") // ambiant texture
Sylvain Thery's avatar
Sylvain Thery committed
233
			{
Sylvain Thery's avatar
Sylvain Thery committed
234
235
236
237
238
239
240
241
242
243
244
//				CGoGNerr << tag << " not yet supported in OBJ material reading" << CGoGNendl;
				if (currentMat->textureDiffuse == NULL)
				{
					currentMat->textureDiffuse = new Utils::Texture<2,Geom::Vec3uc>(GL_UNSIGNED_BYTE);
					std::string buff;
					getline (oss, buff);
					std::string tname = buff.substr(buff.find_first_not_of(' '));
					if (tname[tname.length()-1] == '\r')
						tname = tname.substr(0,tname.length()-1);
					currentMat->textureDiffuse->load(m_matPath+tname);
					CGoGNout << "Loading texture "<< m_matPath+tname << " -> "<<std::hex << currentMat->textureDiffuse <<std::dec<<CGoGNendl;
Sylvain Thery's avatar
Sylvain Thery committed
245
					currentMat->textureDiffuse->scaleNearest( currentMat->textureDiffuse->newMaxSize(m_maxTextureSize));
Sylvain Thery's avatar
Sylvain Thery committed
246
247
248
249
					currentMat->textureDiffuse->setFiltering(GL_LINEAR);
					currentMat->textureDiffuse->setWrapping(GL_REPEAT);
					currentMat->textureDiffuse->update();
				}
Sylvain Thery's avatar
Sylvain Thery committed
250

Sylvain Thery's avatar
Sylvain Thery committed
251
			}
Sylvain Thery's avatar
Sylvain Thery committed
252

Sylvain Thery's avatar
Sylvain Thery committed
253
254
255
256
257
258
259
260
			if (tag == "map_d") // opacity texture
			{
				CGoGNerr << tag << " not yet supported in OBJ material reading" << CGoGNendl;
			}
			if ((tag == "map_bump") || (tag == "bump"))
			{
				CGoGNerr << tag << " not yet supported in OBJ material reading" << CGoGNendl;
			}
Sylvain Thery's avatar
Sylvain Thery committed
261
			tag="";
Sylvain Thery's avatar
Sylvain Thery committed
262
263
264
		}
	}while (!fp.eof());

Sylvain Thery's avatar
Sylvain Thery committed
265
266
267
268
269
	for (std::vector<MaterialOBJ*>::iterator it = m_materials.begin(); it != m_materials.end(); ++it)
	{
		if (*it == NULL)
			CGoGNerr << "Warning missing material in .mtl"<< CGoGNendl;
	}
Sylvain Thery's avatar
Sylvain Thery committed
270

Sylvain Thery's avatar
Sylvain Thery committed
271
}
Sylvain Thery's avatar
Sylvain Thery committed
272
273
274


template <typename PFP>
Sylvain Thery's avatar
Sylvain Thery committed
275
unsigned int OBJModel<PFP>::getMaterialIndex(const std::string& name) const
Sylvain Thery's avatar
Sylvain Thery committed
276
{
Sylvain Thery's avatar
Sylvain Thery committed
277
278
279
280
281
282
283
284
285
286
	std::map<std::string, int>::iterator it = m_materialNames.find(name);
	if (it != m_materialNames.end())
		return it->second;
	return 0xffffffff;
}


//template <typename PFP>
//bool OBJModel<PFP>::generateBrowsers(std::vector<ContainerBrowser*>& browsers)
//{
287
288
289
//	browsers.clear();
//	if (m_groupNames.empty())
//		return false;
Sylvain Thery's avatar
Sylvain Thery committed
290
291

//	ContainerBrowserLinked* MBLptr = new ContainerBrowserLinked(m_map,DART);
292
//	browsers.push_back(MBLptr);
Sylvain Thery's avatar
Sylvain Thery committed
293

294
295
//	for (unsigned int i = 1; i<m_groupNames.size(); ++i)
//	{
Sylvain Thery's avatar
Sylvain Thery committed
296
//		ContainerBrowser* MBptr = new ContainerBrowserLinked(*MBLptr);
297
298
299
//		browsers.push_back(MBptr);
//		m_groupMaterialID[i]= m_materialNames[m_groupMaterialNames[i]];
//	}
Sylvain Thery's avatar
Sylvain Thery committed
300

301
302
303
//	for (Dart d=m_map.begin(); d!=m_map.end(); m_map.next(d))
//	{
//		unsigned int g = m_groups[d] -1 ; // groups are name from 1
Sylvain Thery's avatar
Sylvain Thery committed
304
305
//		ContainerBrowserLinked* mb = static_cast<ContainerBrowserLinked*>(browsers[g]);
//		mb->pushBack(d.index);
306
307
//	}
//	return true;
Sylvain Thery's avatar
Sylvain Thery committed
308
//}
Sylvain Thery's avatar
Sylvain Thery committed
309
310
311
312
313
314
315
316
317
318




	
template <typename PFP>
short OBJModel<PFP>::readObjLine(std::stringstream& oss, std::vector<unsigned int>& indices)
{
	indices.clear();
	
thery's avatar
thery committed
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
	unsigned int nb=0;
	while (!oss.eof())  // lecture de tous les indices
	{
		int index;
		oss >> index;

		indices.push_back(index);

		int slash = 0;
		char sep='_';
		do
		{
			oss >> sep;
			if (sep =='/')
				++slash;
		} while ( ((sep=='/') || (sep ==' ')) && !oss.eof() ) ;

		if ((sep>='0') && (sep<='9'))
			oss.seekg(-1,std::ios_base::cur);

		if (slash == 0)
		{
			if (indices.size()%3 == 1)
			{
				indices.push_back(0);
				indices.push_back(0);
			}
			if (indices.size()%3 == 2)
			{
				indices.push_back(0);
			}
			nb++;
		}


		if (slash == 2)
		{
			indices.push_back(0);
		}
	}
	return nb;
}


363
364
365
366
367
368
template <typename PFP>
unsigned int OBJModel<PFP>::createSimpleVBO_P(Utils::VBO* positionVBO)
{
	TraversorF<typename PFP::MAP> traf(m_map);
	std::vector<Geom::Vec3f> posBuff;
	posBuff.reserve(16384);
Pierre Kraemer's avatar
Pierre Kraemer committed
369

370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
	unsigned int nbtris = 0;
	for (Dart d=traf.begin(); d!= traf.end(); d = traf.next())
	{
		Dart e = m_map.phi1(d);
		Dart f = m_map.phi1(e);
		do
		{
			posBuff.push_back(m_positions[d]);
			posBuff.push_back(m_positions[e]);
			posBuff.push_back(m_positions[f]);
			e=f;
			f = m_map.phi1(e);
			nbtris++;
		}while (f!=d);
	}

	positionVBO->setDataSize(3);
	positionVBO->allocate(posBuff.size());
	Geom::Vec3f* ptrPos = reinterpret_cast<Geom::Vec3f*>(positionVBO->lockPtr());
	memcpy(ptrPos,&posBuff[0],posBuff.size()*sizeof(Geom::Vec3f));
	positionVBO->releasePtr();

	return 3*nbtris;
}
Pierre Kraemer's avatar
Pierre Kraemer committed
394

395
396
397
398
399
400
401
402
403
404
405
406

template <typename PFP>
unsigned int OBJModel<PFP>::createSimpleVBO_PT(Utils::VBO* positionVBO, Utils::VBO* texcoordVBO)
{
	TraversorF<typename PFP::MAP> traf(m_map);
	std::vector<Geom::Vec3f> posBuff;
	std::vector<Geom::Vec2f> TCBuff;
	posBuff.reserve(16384);
	TCBuff.reserve(16384);

	unsigned int nbtris = 0;
	for (Dart d=traf.begin(); d!= traf.end(); d = traf.next())
Pierre Kraemer's avatar
Pierre Kraemer committed
407
	{
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
		Dart e = m_map.phi1(d);
		Dart f = m_map.phi1(e);
		do
		{
			posBuff.push_back(m_positions[d]);
			if (m_specialVertices.isMarked(d))
				TCBuff.push_back(m_texCoordsF[d]);
			else
				TCBuff.push_back(m_texCoords[d]);

			posBuff.push_back(m_positions[e]);
			if (m_specialVertices.isMarked(e))
				TCBuff.push_back(m_texCoordsF[e]);
			else
				TCBuff.push_back(m_texCoords[e]);

			posBuff.push_back(m_positions[f]);
			if (m_specialVertices.isMarked(f))
				TCBuff.push_back(m_texCoordsF[f]);
			else
				TCBuff.push_back(m_texCoords[f]);
			e=f;
			f = m_map.phi1(e);
			nbtris++;
		}while (f!=d);
Pierre Kraemer's avatar
Pierre Kraemer committed
433
434
	}

435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
	positionVBO->setDataSize(3);
	positionVBO->allocate(posBuff.size());
	Geom::Vec3f* ptrPos = reinterpret_cast<Geom::Vec3f*>(positionVBO->lockPtr());
	memcpy(ptrPos,&posBuff[0],posBuff.size()*sizeof(Geom::Vec3f));
	positionVBO->releasePtr();

	texcoordVBO->setDataSize(2);
	texcoordVBO->allocate(TCBuff.size());
	Geom::Vec2f* ptrTC = reinterpret_cast<Geom::Vec2f*>(texcoordVBO->lockPtr());
	memcpy(ptrTC,&TCBuff[0],TCBuff.size()*sizeof(Geom::Vec2f));
	texcoordVBO->releasePtr();

	return 3*nbtris;
}

Sylvain Thery's avatar
Sylvain Thery committed
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522




template <typename PFP>
unsigned int OBJModel<PFP>::createSimpleVBO_PN(Utils::VBO* positionVBO, Utils::VBO* normalVBO )
{
	TraversorF<typename PFP::MAP> traf(m_map);
	std::vector<Geom::Vec3f> posBuff;
	std::vector<Geom::Vec2f> normalBuff;
	posBuff.reserve(16384);
	normalBuff.reserve(16384);

	unsigned int nbtris = 0;
	for (Dart d=traf.begin(); d!= traf.end(); d = traf.next())
	{
		Dart e = m_map.phi1(d);
		Dart f = m_map.phi1(e);
		do
		{
			posBuff.push_back(m_positions[d]);
			if (m_specialVertices.isMarked(d))
			{
				normalBuff.push_back(m_normalsF[d]);
			}
			else
			{
				normalBuff.push_back(m_normals[d]);
			}

			posBuff.push_back(m_positions[e]);
			if (m_specialVertices.isMarked(e))
			{
				normalBuff.push_back(m_normalsF[e]);
			}
			else
			{
				normalBuff.push_back(m_normals[e]);
			}

			posBuff.push_back(m_positions[f]);
			if (m_specialVertices.isMarked(f))
			{
				normalBuff.push_back(m_normalsF[f]);
			}
			else
			{
				normalBuff.push_back(m_normals[f]);
			}
			e=f;
			f = m_map.phi1(e);
			nbtris++;
		}while (f!=d);
	}

	positionVBO->setDataSize(3);
	positionVBO->allocate(posBuff.size());
	Geom::Vec3f* ptrPos = reinterpret_cast<Geom::Vec3f*>(positionVBO->lockPtr());
	memcpy(ptrPos,&posBuff[0],posBuff.size()*sizeof(Geom::Vec3f));
	positionVBO->releasePtr();

	normalVBO->setDataSize(3);
	normalVBO->allocate(normalBuff.size());
	Geom::Vec3f* ptrNormal = reinterpret_cast<Geom::Vec3f*>(normalVBO->lockPtr());
	memcpy(ptrNormal, &normalBuff[0], normalBuff.size()*sizeof(Geom::Vec3f));
	normalVBO->releasePtr();


	return 3*nbtris;
}



523
524
525
template <typename PFP>
unsigned int OBJModel<PFP>::createSimpleVBO_PTN(Utils::VBO* positionVBO, Utils::VBO* texcoordVBO, Utils::VBO* normalVBO )
{
526
527
528
529
530
531
532
533
534
535
536
537
	if (!m_normals.isValid())
	{
		CGoGNerr << "no normal attribute "<< CGoGNendl;
		return 0;
	}
	if (!m_texCoords.isValid())
	{
		CGoGNerr << "no tex coords attribute "<< CGoGNendl;
		return 0;
	}


538
539
540
	TraversorF<typename PFP::MAP> traf(m_map);
	std::vector<Geom::Vec3f> posBuff;
	std::vector<Geom::Vec2f> TCBuff;
541
	std::vector<Geom::Vec3f> normalBuff;
542
543
544
545
546
547
548
549
550
551
552
553
554
555
	posBuff.reserve(16384);
	TCBuff.reserve(16384);
	normalBuff.reserve(16384);

	unsigned int nbtris = 0;
	for (Dart d=traf.begin(); d!= traf.end(); d = traf.next())
	{
		Dart e = m_map.phi1(d);
		Dart f = m_map.phi1(e);
		do
		{
			posBuff.push_back(m_positions[d]);
			if (m_specialVertices.isMarked(d))
			{
556
557
558
559
560
561
562
563
				if (hasTexCoords())
					TCBuff.push_back(m_texCoordsF[d]);
				else
					TCBuff.push_back(m_texCoords[d]);
				if (hasNormals())
					normalBuff.push_back(m_normalsF[d]);
				else
					normalBuff.push_back(m_normals[d]);
564
565
566
567
568
569
570
571
572
573
			}
			else
			{
				TCBuff.push_back(m_texCoords[d]);
				normalBuff.push_back(m_normals[d]);
			}

			posBuff.push_back(m_positions[e]);
			if (m_specialVertices.isMarked(e))
			{
574
575
576
577
578
579
580
581
				if (hasTexCoords())
					TCBuff.push_back(m_texCoordsF[e]);
				else
					TCBuff.push_back(m_texCoords[e]);
				if (hasNormals())
					normalBuff.push_back(m_normalsF[e]);
				else
					normalBuff.push_back(m_normals[e]);
582
583
584
585
586
587
588
589
590
591
			}
			else
			{
				TCBuff.push_back(m_texCoords[e]);
				normalBuff.push_back(m_normals[e]);
			}

			posBuff.push_back(m_positions[f]);
			if (m_specialVertices.isMarked(f))
			{
592
593
594
595
596
597
598
599
				if (hasTexCoords())
					TCBuff.push_back(m_texCoordsF[f]);
				else
					TCBuff.push_back(m_texCoords[f]);
				if (hasNormals())
					normalBuff.push_back(m_normalsF[f]);
				else
					normalBuff.push_back(m_normals[f]);
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
			}
			else
			{
				TCBuff.push_back(m_texCoords[f]);
				normalBuff.push_back(m_normals[f]);
			}
			e=f;
			f = m_map.phi1(e);
			nbtris++;
		}while (f!=d);
	}

	positionVBO->setDataSize(3);
	positionVBO->allocate(posBuff.size());
	Geom::Vec3f* ptrPos = reinterpret_cast<Geom::Vec3f*>(positionVBO->lockPtr());
	memcpy(ptrPos,&posBuff[0],posBuff.size()*sizeof(Geom::Vec3f));
	positionVBO->releasePtr();

	texcoordVBO->setDataSize(2);
	texcoordVBO->allocate(TCBuff.size());
	Geom::Vec2f* ptrTC = reinterpret_cast<Geom::Vec2f*>(texcoordVBO->lockPtr());
	memcpy(ptrTC,&TCBuff[0],TCBuff.size()*sizeof(Geom::Vec2f));
	texcoordVBO->releasePtr();

	normalVBO->setDataSize(3);
	normalVBO->allocate(normalBuff.size());
	Geom::Vec3f* ptrNormal = reinterpret_cast<Geom::Vec3f*>(normalVBO->lockPtr());
	memcpy(ptrNormal, &normalBuff[0], normalBuff.size()*sizeof(Geom::Vec3f));
	normalVBO->releasePtr();

	return 3*nbtris;
}


634
635
636
637




638
template <typename PFP>
639
bool OBJModel<PFP>::createGroupMatVBO_P( Utils::VBO* positionVBO)
640
{
Sylvain Thery's avatar
Sylvain Thery committed
641
642
643
	m_beginIndices.clear();
	m_nbIndices.clear();

644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
	if (!m_normals.isValid())
	{
		CGoGNerr << "no normal attribute "<< CGoGNendl;
		return false;
	}
	if (!m_texCoords.isValid())
	{
		CGoGNerr << "no tex coords attribute "<< CGoGNendl;
		return false;
	}


	std::vector< std::vector<Dart> > group_faces; //(m_materialNames.size());
	group_faces.reserve(16384);
	m_groupIdx.reserve(16384);
	m_sgMat.reserve(16384);

	unsigned int c_sg=0;
	group_faces.resize(1);
Sylvain Thery's avatar
Sylvain Thery committed
663

664
	TraversorF<typename PFP::MAP> traf(m_map);
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
	Dart d=traf.begin();

	unsigned int c_grp = m_groups[d];
	unsigned int c_mat = m_attMat[d];
	m_sgMat.push_back(c_mat);

	m_groupFirstSub.push_back(0);


	if (m_tagG != 0)
		m_groupIdx.push_back(c_grp);
	else
		m_groupIdx.push_back(0);


	while (d!= traf.end())
	{
		if ((m_groups[d] != c_grp) || (m_attMat[d] != c_mat))
		{
			c_sg++;

			if (m_groups[d] != c_grp)
			{
				m_groupNbSub.push_back(c_sg-m_groupFirstSub.back());
				m_groupFirstSub.push_back(c_sg);
			}

			c_grp = m_groups[d];
			c_mat = m_attMat[d];
			m_sgMat.push_back(c_mat);

			if (m_tagG != 0)
				m_groupIdx.push_back(c_grp);
			else
				m_groupIdx.push_back(0);

			group_faces.resize(c_sg+1);
		}

		group_faces[c_sg].push_back(d);
		d = traf.next();
	}

	m_groupNbSub.push_back(c_sg+1-m_groupFirstSub.back()); // nb sub-group of last group


	// merging same material sub-groups of same group
	for (unsigned int g=0; g<m_groupNbSub.size(); ++g)
	{
		unsigned int fsg = m_groupFirstSub[g];
		unsigned int lsg = m_groupFirstSub[g]+m_groupNbSub[g]-1;

		for (unsigned int s=fsg; s<=lsg; ++s)
		{
			if (m_sgMat[s] != 0xffffffff)
			{
				for (unsigned ss=s+1; ss<=lsg; ++ss)
				{
					if (m_sgMat[ss] == m_sgMat[s])
					{
						group_faces[s].insert(group_faces[s].end(),group_faces[ss].begin(),group_faces[ss].end());
						group_faces[ss].clear();
						m_sgMat[ss] = 0xffffffff;
					}
				}
			}
		}
	}

	// compact group_faces/m_groupIdx/m_sgMat
	unsigned int outSg=0;
	for (unsigned int inSg=0; inSg<m_sgMat.size(); ++inSg)
	{
		if (m_sgMat[inSg] != 0xffffffff)
		{
			if (outSg != inSg)
			{
				group_faces[outSg].swap(group_faces[inSg]);
				m_groupIdx[outSg] = m_groupIdx[inSg];
				m_sgMat[outSg] = m_sgMat[inSg];
			}
			outSg++;
		}
	}
	group_faces.resize(outSg);
	m_groupIdx.resize(outSg);
	m_sgMat.resize(outSg);

	// recreate m_groupFirstSub & m_groupNbSub
	unsigned int outGr=0;
	m_groupFirstSub[0] = m_groupIdx[0];
	for (unsigned int inSg=1; inSg<m_sgMat.size(); ++inSg)
Sylvain Thery's avatar
Sylvain Thery committed
757
	{
758
759
760
761
762
763
		if (m_groupIdx[inSg] != m_groupIdx[inSg-1])
		{
			m_groupNbSub[outGr] = inSg - m_groupFirstSub[outGr];
			outGr++;
			m_groupFirstSub[outGr] = inSg;
		}
Sylvain Thery's avatar
Sylvain Thery committed
764
	}
765
766
767
768
769
770
771
	m_groupNbSub[outGr+1] = m_sgMat.size() - m_groupNbSub[outGr];


	// now create VBOs

	std::vector<Geom::Vec3f> posBuff;
	posBuff.reserve(16384);
Sylvain Thery's avatar
Sylvain Thery committed
772
773
774
775
776
777

	unsigned int firstIndex = 0;

	unsigned int sz = group_faces.size();
	m_beginIndices.resize(sz);
	m_nbIndices.resize(sz);
Sylvain Thery's avatar
Sylvain Thery committed
778
	m_groupIdx.resize(sz);
Sylvain Thery's avatar
Sylvain Thery committed
779
780
781
782
783
784

	for (unsigned int g=0; g<sz; ++g)
	{
		unsigned int nbtris = 0;
		std::vector<Dart>& traf = group_faces[g];

Sylvain Thery's avatar
Sylvain Thery committed
785
786
787
788
789
		if (m_tagG != 0)
			m_groupIdx[g] = m_groups[traf.front()];
		else
			m_groupIdx[g]=0;

Sylvain Thery's avatar
Sylvain Thery committed
790
791
792
		for (std::vector<Dart>::iterator id=traf.begin(); id!= traf.end(); ++id)
		{
			Dart d = *id;
793

Sylvain Thery's avatar
Sylvain Thery committed
794
795
796
797
798
			Dart e = m_map.phi1(d);
			Dart f = m_map.phi1(e);
			do
			{
				posBuff.push_back(m_positions[d]);
799

Sylvain Thery's avatar
Sylvain Thery committed
800
				posBuff.push_back(m_positions[e]);
801

Sylvain Thery's avatar
Sylvain Thery committed
802
				posBuff.push_back(m_positions[f]);
803

Sylvain Thery's avatar
Sylvain Thery committed
804
805
806
807
808
809
810
				e=f;
				f = m_map.phi1(e);
				nbtris++;
			}while (f!=d);
		}
		m_beginIndices[g] = firstIndex;
		m_nbIndices[g] = 3*nbtris;
811

Sylvain Thery's avatar
Sylvain Thery committed
812
813
		firstIndex += 3*nbtris;
	}
814

Sylvain Thery's avatar
Sylvain Thery committed
815
816
817
818
819
820
	positionVBO->setDataSize(3);
	positionVBO->allocate(posBuff.size());
	Geom::Vec3f* ptrPos = reinterpret_cast<Geom::Vec3f*>(positionVBO->lockPtr());
	memcpy(ptrPos,&posBuff[0],posBuff.size()*sizeof(Geom::Vec3f));
	positionVBO->releasePtr();

821
822
823

	// compute BBs ( TO DO: a method ?)
	computeBB(posBuff);
Sylvain Thery's avatar
Sylvain Thery committed
824

Sylvain Thery's avatar
Sylvain Thery committed
825
826
827
828
829
	return true;
}



830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897

//template <typename PFP>
//bool OBJModel<PFP>::createGroupMatVBO_P(Utils::VBO* positionVBO)
//{
//	m_beginIndices.clear();
//	m_nbIndices.clear();

//	std::vector<Geom::Vec3f> posBuff;
//	posBuff.reserve(16384);

//	std::vector< std::vector<Dart> > group_faces(m_materialNames.size());
//	TraversorF<typename PFP::MAP> traf(m_map);
//	for (Dart d=traf.begin(); d!= traf.end(); d = traf.next())
//	{
//		unsigned int g = m_attMat[d];
//		group_faces[g].push_back(d);
//	}

//	unsigned int firstIndex = 0;

//	unsigned int sz = group_faces.size();
//	m_beginIndices.resize(sz);
//	m_nbIndices.resize(sz);
//	m_groupIdx.resize(sz);

//	for (unsigned int g=0; g<sz; ++g)
//	{
//		unsigned int nbtris = 0;
//		std::vector<Dart>& traf = group_faces[g];

//		if (m_tagG != 0)
//			m_groupIdx[g] = m_groups[traf.front()];
//		else
//			m_groupIdx[g]=0;

//		for (std::vector<Dart>::iterator id=traf.begin(); id!= traf.end(); ++id)
//		{
//			Dart d = *id;
//			Dart e = m_map.phi1(d);
//			Dart f = m_map.phi1(e);
//			do
//			{
//				posBuff.push_back(m_positions[d]);
//				posBuff.push_back(m_positions[e]);
//				posBuff.push_back(m_positions[f]);
//				e=f;
//				f = m_map.phi1(e);
//				nbtris++;
//			}while (f!=d);
//		}
//		m_beginIndices[g] = firstIndex;
//		m_nbIndices[g] = 3*nbtris;
//		firstIndex += 3*nbtris;
//	}
//	positionVBO->setDataSize(3);
//	positionVBO->allocate(posBuff.size());
//	Geom::Vec3f* ptrPos = reinterpret_cast<Geom::Vec3f*>(positionVBO->lockPtr());
//	memcpy(ptrPos,&posBuff[0],posBuff.size()*sizeof(Geom::Vec3f));
//	positionVBO->releasePtr();

//	updateGroups();

//	return true;
//}




Sylvain Thery's avatar
Sylvain Thery committed
898
template <typename PFP>
899
900
bool OBJModel<PFP>::createGroupMatVBO_PT( Utils::VBO* positionVBO,
											Utils::VBO* texcoordVBO)
Sylvain Thery's avatar
Sylvain Thery committed
901
902
903
904
{
	m_beginIndices.clear();
	m_nbIndices.clear();

905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
	if (!m_normals.isValid())
	{
		CGoGNerr << "no normal attribute "<< CGoGNendl;
		return false;
	}
	if (!m_texCoords.isValid())
	{
		CGoGNerr << "no tex coords attribute "<< CGoGNendl;
		return false;
	}


	std::vector< std::vector<Dart> > group_faces; //(m_materialNames.size());
	group_faces.reserve(16384);
	m_groupIdx.reserve(16384);
	m_sgMat.reserve(16384);

	unsigned int c_sg=0;
	group_faces.resize(1);

	TraversorF<typename PFP::MAP> traf(m_map);
	Dart d=traf.begin();

	unsigned int c_grp = m_groups[d];
	unsigned int c_mat = m_attMat[d];
	m_sgMat.push_back(c_mat);

	m_groupFirstSub.push_back(0);


	if (m_tagG != 0)
		m_groupIdx.push_back(c_grp);
	else
		m_groupIdx.push_back(0);


	while (d!= traf.end())
	{
		if ((m_groups[d] != c_grp) || (m_attMat[d] != c_mat))
		{
			c_sg++;

			if (m_groups[d] != c_grp)
			{
				m_groupNbSub.push_back(c_sg-m_groupFirstSub.back());
				m_groupFirstSub.push_back(c_sg);
			}

			c_grp = m_groups[d];
			c_mat = m_attMat[d];
			m_sgMat.push_back(c_mat);

			if (m_tagG != 0)
				m_groupIdx.push_back(c_grp);
			else
				m_groupIdx.push_back(0);

			group_faces.resize(c_sg+1);
		}

		group_faces[c_sg].push_back(d);
		d = traf.next();
	}

	m_groupNbSub.push_back(c_sg+1-m_groupFirstSub.back()); // nb sub-group of last group


	// merging same material sub-groups of same group
	for (unsigned int g=0; g<m_groupNbSub.size(); ++g)
	{
		unsigned int fsg = m_groupFirstSub[g];
		unsigned int lsg = m_groupFirstSub[g]+m_groupNbSub[g]-1;

		for (unsigned int s=fsg; s<=lsg; ++s)
		{
			if (m_sgMat[s] != 0xffffffff)
			{
				for (unsigned ss=s+1; ss<=lsg; ++ss)
				{
					if (m_sgMat[ss] == m_sgMat[s])
					{
						group_faces[s].insert(group_faces[s].end(),group_faces[ss].begin(),group_faces[ss].end());
						group_faces[ss].clear();
						m_sgMat[ss] = 0xffffffff;
					}
				}
			}
		}
	}

	// compact group_faces/m_groupIdx/m_sgMat
	unsigned int outSg=0;
	for (unsigned int inSg=0; inSg<m_sgMat.size(); ++inSg)
	{
		if (m_sgMat[inSg] != 0xffffffff)
		{
			if (outSg != inSg)
			{
				group_faces[outSg].swap(group_faces[inSg]);
				m_groupIdx[outSg] = m_groupIdx[inSg];
				m_sgMat[outSg] = m_sgMat[inSg];
			}
			outSg++;
		}
	}
	group_faces.resize(outSg);
	m_groupIdx.resize(outSg);
	m_sgMat.resize(outSg);

	// recreate m_groupFirstSub & m_groupNbSub
	unsigned int outGr=0;
	m_groupFirstSub[0] = m_groupIdx[0];
	for (unsigned int inSg=1; inSg<m_sgMat.size(); ++inSg)
	{
		if (m_groupIdx[inSg] != m_groupIdx[inSg-1])
		{
			m_groupNbSub[outGr] = inSg - m_groupFirstSub[outGr];
			outGr++;
			m_groupFirstSub[outGr] = inSg;
		}
	}
	m_groupNbSub[outGr+1] = m_sgMat.size() - m_groupNbSub[outGr];


	// now create VBOs

Sylvain Thery's avatar
Sylvain Thery committed
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
	std::vector<Geom::Vec3f> posBuff;
	std::vector<Geom::Vec2f> TCBuff;
	posBuff.reserve(16384);
	TCBuff.reserve(16384);


	unsigned int firstIndex = 0;

	unsigned int sz = group_faces.size();
	m_beginIndices.resize(sz);
	m_nbIndices.resize(sz);
Sylvain Thery's avatar
Sylvain Thery committed
1042
	m_groupIdx.resize(sz);
Sylvain Thery's avatar
Sylvain Thery committed
1043
1044
1045
1046
1047
1048

	for (unsigned int g=0; g<sz; ++g)
	{
		unsigned int nbtris = 0;
		std::vector<Dart>& traf = group_faces[g];

Sylvain Thery's avatar
Sylvain Thery committed
1049
1050
1051
1052
1053
		if (m_tagG != 0)
			m_groupIdx[g] = m_groups[traf.front()];
		else
			m_groupIdx[g]=0;

Sylvain Thery's avatar
Sylvain Thery committed
1054
1055
1056
1057
1058
1059
1060
1061
1062
		for (std::vector<Dart>::iterator id=traf.begin(); id!= traf.end(); ++id)
		{
			Dart d = *id;

			Dart e = m_map.phi1(d);
			Dart f = m_map.phi1(e);
			do
			{
				posBuff.push_back(m_positions[d]);
1063
1064

				if (hasTexCoords())
Sylvain Thery's avatar
Sylvain Thery committed
1065
1066
1067
1068
					TCBuff.push_back(m_texCoordsF[d]);
				else
					TCBuff.push_back(m_texCoords[d]);

1069

Sylvain Thery's avatar
Sylvain Thery committed
1070
				posBuff.push_back(m_positions[e]);
1071
1072

				if (hasTexCoords())
Sylvain Thery's avatar
Sylvain Thery committed
1073
1074
1075
1076
					TCBuff.push_back(m_texCoordsF[e]);
				else
					TCBuff.push_back(m_texCoords[e]);

1077

Sylvain Thery's avatar
Sylvain Thery committed
1078
				posBuff.push_back(m_positions[f]);
1079
1080

				if (hasTexCoords())
Sylvain Thery's avatar
Sylvain Thery committed
1081
1082
1083
					TCBuff.push_back(m_texCoordsF[f]);
				else
					TCBuff.push_back(m_texCoords[f]);
1084
1085


Sylvain Thery's avatar
Sylvain Thery committed
1086
1087
1088
1089
1090
1091
1092
				e=f;
				f = m_map.phi1(e);
				nbtris++;
			}while (f!=d);
		}
		m_beginIndices[g] = firstIndex;
		m_nbIndices[g] = 3*nbtris;
1093

Sylvain Thery's avatar
Sylvain Thery committed
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
		firstIndex += 3*nbtris;
	}

	positionVBO->setDataSize(3);
	positionVBO->allocate(posBuff.size());
	Geom::Vec3f* ptrPos = reinterpret_cast<Geom::Vec3f*>(positionVBO->lockPtr());
	memcpy(ptrPos,&posBuff[0],posBuff.size()*sizeof(Geom::Vec3f));
	positionVBO->releasePtr();

	texcoordVBO->setDataSize(2);
	texcoordVBO->allocate(TCBuff.size());
	Geom::Vec2f* ptrTC = reinterpret_cast<Geom::Vec2f*>(texcoordVBO->lockPtr());
	memcpy(ptrTC,&TCBuff[0],TCBuff.size()*sizeof(Geom::Vec2f));
	texcoordVBO->releasePtr();

1109
1110
	// compute BBs ( TO DO: a method ?)
	computeBB(posBuff);
Sylvain Thery's avatar
Sylvain Thery committed
1111

Sylvain Thery's avatar
Sylvain Thery committed
1112
1113
1114
1115
1116
1117
1118
1119
	return true;
}





template <typename PFP>
1120
1121
bool OBJModel<PFP>::createGroupMatVBO_PN( Utils::VBO* positionVBO,
											Utils::VBO* normalVBO)
Sylvain Thery's avatar
Sylvain Thery committed
1122
1123
1124
1125
{
	m_beginIndices.clear();
	m_nbIndices.clear();

1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
	if (!m_normals.isValid())
	{
		CGoGNerr << "no normal attribute "<< CGoGNendl;
		return false;
	}


	std::vector< std::vector<Dart> > group_faces; //(m_materialNames.size());
	group_faces.reserve(16384);
	m_groupIdx.reserve(16384);
	m_sgMat.reserve(16384);

	unsigned int c_sg=0;
	group_faces.resize(1);
1140

Sylvain Thery's avatar
Sylvain Thery committed
1141
	TraversorF<typename PFP::MAP> traf(m_map);
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
	Dart d=traf.begin();

	unsigned int c_grp = m_groups[d];
	unsigned int c_mat = m_attMat[d];
	m_sgMat.push_back(c_mat);

	m_groupFirstSub.push_back(0);


	if (m_tagG != 0)
		m_groupIdx.push_back(c_grp);
	else
		m_groupIdx.push_back(0);


	while (d!= traf.end())
	{
		if ((m_groups[d] != c_grp) || (m_attMat[d] != c_mat))
		{
			c_sg++;

			if (m_groups[d] != c_grp)
			{
				m_groupNbSub.push_back(c_sg-m_groupFirstSub.back());
				m_groupFirstSub.push_back(c_sg);
			}

			c_grp = m_groups[d];
			c_mat = m_attMat[d];
			m_sgMat.push_back(c_mat);

			if (m_tagG != 0)
				m_groupIdx.push_back(c_grp);
			else
				m_groupIdx.push_back(0);

			group_faces.resize(c_sg+1);
		}

		group_faces[c_sg].push_back(d);
		d = traf.next();
	}

	m_groupNbSub.push_back(c_sg+1-m_groupFirstSub.back()); // nb sub-group of last group


	// merging same material sub-groups of same group
	for (unsigned int g=0; g<m_groupNbSub.size(); ++g)
	{
		unsigned int fsg = m_groupFirstSub[g];
		unsigned int lsg = m_groupFirstSub[g]+m_groupNbSub[g]-1;

		for (unsigned int s=fsg; s<=lsg; ++s)
		{
			if (m_sgMat[s] != 0xffffffff)
			{
				for (unsigned ss=s+1; ss<=lsg; ++ss)
				{
					if (m_sgMat[ss] == m_sgMat[s])
					{
						group_faces[s].insert(group_faces[s].end(),group_faces[ss].begin(),group_faces[ss].end());
						group_faces[ss].clear();
						m_sgMat[ss] = 0xffffffff;
					}
				}
			}
		}
	}

	// compact group_faces/m_groupIdx/m_sgMat
	unsigned int outSg=0;
	for (unsigned int inSg=0; inSg<m_sgMat.size(); ++inSg)
1214
	{
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
		if (m_sgMat[inSg] != 0xffffffff)
		{
			if (outSg != inSg)
			{
				group_faces[outSg].swap(group_faces[inSg]);
				m_groupIdx[outSg] = m_groupIdx[inSg];
				m_sgMat[outSg] = m_sgMat[inSg];
			}
			outSg++;
		}
	}
	group_faces.resize(outSg);
	m_groupIdx.resize(outSg);
	m_sgMat.resize(outSg);

	// recreate m_groupFirstSub & m_groupNbSub
	unsigned int outGr=0;
	m_groupFirstSub[0] = m_groupIdx[0];
	for (unsigned int inSg=1; inSg<m_sgMat.size(); ++inSg)
	{
		if (m_groupIdx[inSg] != m_groupIdx[inSg-1])
		{
			m_groupNbSub[outGr] = inSg - m_groupFirstSub[outGr];
			outGr++;
			m_groupFirstSub[outGr] = inSg;
		}
Sylvain Thery's avatar
Sylvain Thery committed
1241
	}
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
	m_groupNbSub[outGr+1] = m_sgMat.size() - m_groupNbSub[outGr];


	// now create VBOs

	std::vector<Geom::Vec3f> posBuff;
	std::vector<Geom::Vec3f> normalBuff;
	posBuff.reserve(16384);
	normalBuff.reserve(16384);

Sylvain Thery's avatar
Sylvain Thery committed
1252
1253
1254
1255
1256
1257

	unsigned int firstIndex = 0;

	unsigned int sz = group_faces.size();
	m_beginIndices.resize(sz);
	m_nbIndices.resize(sz);
Sylvain Thery's avatar
Sylvain Thery committed
1258
	m_groupIdx.resize(sz);
Sylvain Thery's avatar
Sylvain Thery committed
1259
1260
1261
1262
1263
1264

	for (unsigned int g=0; g<sz; ++g)
	{
		unsigned int nbtris = 0;
		std::vector<Dart>& traf = group_faces[g];

Sylvain Thery's avatar
Sylvain Thery committed
1265
1266
1267
1268
1269
		if (m_tagG != 0)
			m_groupIdx[g] = m_groups[traf.front()];
		else
			m_groupIdx[g]=0;

Sylvain Thery's avatar
Sylvain Thery committed
1270
		for (std::vector<Dart>::iterator id=traf.begin(); id!= traf.end(); ++id)
1271
		{
Sylvain Thery's avatar
Sylvain Thery committed
1272
			Dart d = *id;
1273

Sylvain Thery's avatar
Sylvain Thery committed
1274
1275
1276
			Dart e = m_map.phi1(d);
			Dart f = m_map.phi1(e);
			do
1277
			{
Sylvain Thery's avatar
Sylvain Thery committed
1278
				posBuff.push_back(m_positions[d]);
1279
1280

				if (hasNormals())
Sylvain Thery's avatar
Sylvain Thery committed
1281
1282
1283
					normalBuff.push_back(m_normalsF[d]);
				else
					normalBuff.push_back(m_normals[d]);
1284

1285

Sylvain Thery's avatar
Sylvain Thery committed
1286
				posBuff.push_back(m_positions[e]);
1287
1288

				if (hasNormals())
Sylvain Thery's avatar
Sylvain Thery committed
1289
1290
1291
					normalBuff.push_back(m_normalsF[e]);
				else
					normalBuff.push_back(m_normals[e]);
1292

Sylvain Thery's avatar
Sylvain Thery committed
1293
1294

				posBuff.push_back(m_positions[f]);
1295
1296

				if (hasNormals())
Sylvain Thery's avatar
Sylvain Thery committed
1297
1298
1299
					normalBuff.push_back(m_normalsF[f]);
				else
					normalBuff.push_back(m_normals[f]);
1300
1301


Sylvain Thery's avatar
Sylvain Thery committed
1302
1303
1304
1305
1306
1307
1308
				e=f;
				f = m_map.phi1(e);
				nbtris++;
			}while (f!=d);
		}
		m_beginIndices[g] = firstIndex;
		m_nbIndices[g] = 3*nbtris;
1309

Sylvain Thery's avatar
Sylvain Thery committed
1310
		firstIndex += 3*nbtris;
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
	}

	positionVBO->setDataSize(3);
	positionVBO->allocate(posBuff.size());
	Geom::Vec3f* ptrPos = reinterpret_cast<Geom::Vec3f*>(positionVBO->lockPtr());
	memcpy(ptrPos,&posBuff[0],posBuff.size()*sizeof(Geom::Vec3f));
	positionVBO->releasePtr();

	normalVBO->setDataSize(3);
	normalVBO->allocate(normalBuff.size());
	Geom::Vec3f* ptrNormal = reinterpret_cast<Geom::Vec3f*>(normalVBO->lockPtr());
	memcpy(ptrNormal, &normalBuff[0], normalBuff.size()*sizeof(Geom::Vec3f));
	normalVBO->releasePtr();

1325
1326
	// compute BBs ( TO DO: a method ?)
	computeBB(posBuff);
Sylvain Thery's avatar
Sylvain Thery committed
1327

Sylvain Thery's avatar
Sylvain Thery committed
1328
1329
1330
	return true;
}

1331

Sylvain Thery's avatar
Sylvain Thery committed
1332
1333


1334

Sylvain Thery's avatar
Sylvain Thery committed
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
template <typename PFP>
bool OBJModel<PFP>::createGroupMatVBO_PTN( Utils::VBO* positionVBO,
											Utils::VBO* texcoordVBO,
											Utils::VBO* normalVBO)
{
	m_beginIndices.clear();
	m_nbIndices.clear();

	if (!m_normals.isValid())
	{
		CGoGNerr << "no normal attribute "<< CGoGNendl;
		return false;
	}
	if (!m_texCoords.isValid())
	{
		CGoGNerr << "no tex coords attribute "<< CGoGNendl;
		return false;
	}

1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468

	std::vector< std::vector<Dart> > group_faces; //(m_materialNames.size());
	group_faces.reserve(16384);
	m_groupIdx.reserve(16384);
	m_sgMat.reserve(16384);

	unsigned int c_sg=0;
	group_faces.resize(1);

	TraversorF<typename PFP::MAP> traf(m_map);
	Dart d=traf.begin();

	unsigned int c_grp = m_groups[d];
	unsigned int c_mat = m_attMat[d];
	m_sgMat.push_back(c_mat);

	m_groupFirstSub.push_back(0);


	if (m_tagG != 0)
		m_groupIdx.push_back(c_grp);
	else
		m_groupIdx.push_back(0);


	while (d!= traf.end())
	{
		if ((m_groups[d] != c_grp) || (m_attMat[d] != c_mat))
		{
			c_sg++;

			if (m_groups[d] != c_grp)
			{
				m_groupNbSub.push_back(c_sg-m_groupFirstSub.back());
				m_groupFirstSub.push_back(c_sg);
			}

			c_grp = m_groups[d];
			c_mat = m_attMat[d];
			m_sgMat.push_back(c_mat);

			if (m_tagG != 0)
				m_groupIdx.push_back(c_grp);
			else
				m_groupIdx.push_back(0);

			group_faces.resize(c_sg+1);
		}

		group_faces[c_sg].push_back(d);
		d = traf.next();
	}

	m_groupNbSub.push_back(c_sg+1-m_groupFirstSub.back()); // nb sub-group of last group


	// merging same material sub-groups of same group
	for (unsigned int g=0; g<m_groupNbSub.size(); ++g)
	{
		unsigned int fsg = m_groupFirstSub[g];
		unsigned int lsg = m_groupFirstSub[g]+m_groupNbSub[g]-1;

		for (unsigned int s=fsg; s<=lsg; ++s)
		{
			if (m_sgMat[s] != 0xffffffff)
			{
				for (unsigned ss=s+1; ss<=lsg; ++ss)
				{
					if (m_sgMat[ss] == m_sgMat[s])
					{
						group_faces[s].insert(group_faces[s].end(),group_faces[ss].begin(),group_faces[ss].end());
						group_faces[ss].clear();
						m_sgMat[ss] = 0xffffffff;
					}
				}
			}
		}
	}

	// compact group_faces/m_groupIdx/m_sgMat
	unsigned int outSg=0;
	for (unsigned int inSg=0; inSg<m_sgMat.size(); ++inSg)
	{
		if (m_sgMat[inSg] != 0xffffffff)
		{
			if (outSg != inSg)
			{
				group_faces[outSg].swap(group_faces[inSg]);
				m_groupIdx[outSg] = m_groupIdx[inSg];
				m_sgMat[outSg] = m_sgMat[inSg];
			}
			outSg++;
		}
	}
	group_faces.resize(outSg);
	m_groupIdx.resize(outSg);
	m_sgMat.resize(outSg);

	// recreate m_groupFirstSub & m_groupNbSub
	unsigned int outGr=0;
	m_groupFirstSub[0] = m_groupIdx[0];
	for (unsigned int inSg=1; inSg<m_sgMat.size(); ++inSg)
	{
		if (m_groupIdx[inSg] != m_groupIdx[inSg-1])
		{
			m_groupNbSub[outGr] = inSg - m_groupFirstSub[outGr];
			outGr++;
			m_groupFirstSub[outGr] = inSg;
		}
	}
	m_groupNbSub[outGr+1] = m_sgMat.size() - m_groupNbSub[outGr];


	// now create VBOs

Sylvain Thery's avatar
Sylvain Thery committed
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
	std::vector<Geom::Vec3f> posBuff;
	std::vector<Geom::Vec2f> TCBuff;
	std::vector<Geom::Vec3f> normalBuff;
	posBuff.reserve(16384);
	TCBuff.reserve(16384);
	normalBuff.reserve(16384);


	unsigned int firstIndex = 0;

	unsigned int sz = group_faces.size();
	m_beginIndices.resize(sz);
	m_nbIndices.resize(sz);
Sylvain Thery's avatar
Sylvain Thery committed
1482
	m_groupIdx.resize(sz);
Sylvain Thery's avatar
Sylvain Thery committed
1483
1484
1485
1486
1487
1488

	for (unsigned int g=0; g<sz; ++g)
	{
		unsigned int nbtris = 0;
		std::vector<Dart>& traf = group_faces[g];

Sylvain Thery's avatar
Sylvain Thery committed
1489
1490
1491
1492
1493
		if (m_tagG != 0)
			m_groupIdx[g] = m_groups[traf.front()];
		else
			m_groupIdx[g]=0;

Sylvain Thery's avatar
Sylvain Thery committed
1494
1495
1496
1497
1498
1499
1500
1501
1502
		for (std::vector<Dart>::iterator id=traf.begin(); id!= traf.end(); ++id)
		{
			Dart d = *id;

			Dart e = m_map.phi1(d);
			Dart f = m_map.phi1(e);
			do
			{
				posBuff.push_back(m_positions[d]);
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512

				if (hasTexCoords())
					TCBuff.push_back(m_texCoordsF[d]);
				else
					TCBuff.push_back(m_texCoords[d]);
				if (hasNormals())
					normalBuff.push_back(m_normalsF[d]);
				else
					normalBuff.push_back(m_normals[d]);

Sylvain Thery's avatar
Sylvain Thery committed
1513
1514

				posBuff.push_back(m_positions[e]);
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524

				if (hasTexCoords())
					TCBuff.push_back(m_texCoordsF[e]);
				else
					TCBuff.push_back(m_texCoords[e]);
				if (hasNormals())
					normalBuff.push_back(m_normalsF[e]);
				else
					normalBuff.push_back(m_normals[e]);

Sylvain Thery's avatar
Sylvain Thery committed
1525
1526

				posBuff.push_back(m_positions[f]);
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536

				if (hasTexCoords())
					TCBuff.push_back(m_texCoordsF[f]);
				else
					TCBuff.push_back(m_texCoords[f]);
				if (hasNormals())
					normalBuff.push_back(m_normalsF[f]);
				else
					normalBuff.push_back(m_normals[f]);

Sylvain Thery's avatar
Sylvain Thery committed
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566

				e=f;
				f = m_map.phi1(e);
				nbtris++;
			}while (f!=d);
		}
		m_beginIndices[g] = firstIndex;
		m_nbIndices[g] = 3*nbtris;

		firstIndex += 3*nbtris;
	}

	positionVBO->setDataSize(3);
	positionVBO->allocate(posBuff.size());
	Geom::Vec3f* ptrPos = reinterpret_cast<Geom::Vec3f*>(positionVBO->lockPtr());
	memcpy(ptrPos,&posBuff[0],posBuff.size()*sizeof(Geom::Vec3f));
	positionVBO->releasePtr();

	texcoordVBO->setDataSize(2);
	texcoordVBO->allocate(TCBuff.size());
	Geom::Vec2f* ptrTC = reinterpret_cast<Geom::Vec2f*>(texcoordVBO->lockPtr());
	memcpy(ptrTC,&TCBuff[0],TCBuff.size()*sizeof(Geom::Vec2f));
	texcoordVBO->releasePtr();

	normalVBO->setDataSize(3);
	normalVBO->allocate(normalBuff.size());
	Geom::Vec3f* ptrNormal = reinterpret_cast<Geom::Vec3f*>(normalVBO->lockPtr());
	memcpy(ptrNormal, &normalBuff[0], normalBuff.size()*sizeof(Geom::Vec3f));
	normalVBO->releasePtr();

1567
1568
1569

	// compute BBs ( TO DO: a method ?)
	computeBB(posBuff);
Sylvain Thery's avatar
Sylvain Thery committed
1570

Sylvain Thery's avatar
Sylvain Thery committed
1571
	return true;
1572
1573
1574
}


Sylvain Thery's avatar
Sylvain Thery committed
1575

1576

Sylvain Thery's avatar
Sylvain Thery committed
1577
template <typename PFP>
1578
void OBJModel<PFP>::computeBB(const std::vector<Geom::Vec3f>& pos)
Sylvain Thery's avatar
Sylvain Thery committed
1579
{
1580
1581
1582
	m_groupBBs.resize(nbObjGroups());

	for (unsigned int i=0; i<nbObjGroups(); ++i )
Sylvain Thery's avatar
Sylvain Thery committed
1583
	{
1584
1585
		Geom::BoundingBox<VEC3>& bb = m_groupBBs[i];
		bb.reset();
Sylvain Thery's avatar
Sylvain Thery committed
1586

1587
1588
1589
1590
1591
1592
		unsigned int begInd = beginIndex(i,0);
		unsigned int endInd = begInd;
		for (unsigned int j= 0; j< nbSubGroup(i); ++j)
			endInd += nbIndices(i,j);

		for (unsigned int j=begInd; j<endInd; ++j )
Sylvain Thery's avatar
Sylvain Thery committed
1593
		{
1594
			bb.addPoint(pos[j]);
Sylvain Thery's avatar
Sylvain Thery committed
1595
		}
1596
	}
Sylvain Thery's avatar
Sylvain Thery committed
1597
1598
1599
1600
1601
1602

}




thery's avatar
thery committed
1603
template <typename PFP>
Sylvain Thery's avatar
Sylvain Thery committed
1604
bool OBJModel<PFP>::import( const std::string& filename, std::vector<std::string>& attrNames)
thery's avatar
thery committed
1605
1606
1607
1608
1609
1610
{
	typedef  typename PFP::VEC3 VEC3;
	typedef Geom::Vec2f VEC2;

	attrNames.clear();
	// open file
Sylvain Thery's avatar
Sylvain Thery committed
1611
	std::ifstream fp(filename.c_str()/*, std::ios::binary*/);
thery's avatar
thery committed
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
	if (!fp.good())
	{
		CGoGNerr << "Unable to open file " << filename << CGoGNendl;
		return false;
	}

	std::string ligne;
	std::string tag;
	do
	{
		std::getline (fp, ligne);
Sylvain Thery's avatar
Sylvain Thery committed
1623
1624
		std::stringstream oss(ligne);
		oss >> tag;
thery's avatar
thery committed
1625
		if (tag == "v")
1626
			m_tagV++;
thery's avatar
thery committed
1627
		if (tag == "vn")
1628
			m_tagVN++;
thery's avatar
thery committed
1629
		if (tag == "vt")
1630
			m_tagVT++;
Sylvain Thery's avatar
Sylvain Thery committed
1631
		if ((tag == "g") || (tag == "o"))
1632
			m_tagG++;
thery's avatar
thery committed
1633
		if (tag == "f")
1634
			m_tagF++;
Sylvain Thery's avatar
Sylvain Thery committed
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645

		if (tag == "mtllib")
		{
			unsigned found = filename.find_last_of("/\\");
			std::string mtfn;
			oss >> mtfn;
			m_matPath = filename.substr(0,found) + "/";
			m_matFileName = m_matPath + mtfn;
		}
		tag.clear();

thery's avatar
thery committed
1646
1647
1648
1649
	}while (!fp.eof());



Sylvain Thery's avatar
Sylvain Thery committed
1650
1651
1652
1653
	m_positions =  m_map.template getAttribute<typename PFP::VEC3, VERTEX>("position") ;
	if (!m_positions.isValid())
		m_positions = m_map.template addAttribute<VEC3, VERTEX>("position") ;
	attrNames.push_back(m_positions.name()) ;
thery's avatar
thery committed
1654

Sylvain Thery's avatar
Sylvain Thery committed
1655
1656
1657
1658
1659
1660
1661


	m_texCoords =  m_map.template getAttribute<VEC2