[372] | 1 | #include "SceneGraph.h"
|
---|
| 2 | #include "KdTree.h"
|
---|
| 3 | #include "VssPreprocessor.h"
|
---|
| 4 | #include "X3dExporter.h"
|
---|
| 5 | #include "Environment.h"
|
---|
| 6 | #include "MutualVisibility.h"
|
---|
| 7 | #include "Polygon3.h"
|
---|
| 8 | #include "ViewCell.h"
|
---|
[376] | 9 | #include "VssRay.h"
|
---|
[382] | 10 | #include "VssTree.h"
|
---|
[439] | 11 | #include "ViewCellsManager.h"
|
---|
[452] | 12 | #include "RenderSimulator.h"
|
---|
[531] | 13 | #include "Beam.h"
|
---|
| 14 | #include "GlRenderer.h"
|
---|
[1221] | 15 | #include "Intersectable.h"
|
---|
[1251] | 16 | #ifdef GTP_INTERNAL
|
---|
| 17 | #include "ArchModeler2MLRT.hxx"
|
---|
| 18 | #endif
|
---|
[372] | 19 |
|
---|
[863] | 20 | namespace GtpVisibilityPreprocessor {
|
---|
[860] | 21 |
|
---|
[427] | 22 | bool use2dSampling = false;
|
---|
[534] | 23 | bool useViewspacePlane = false;
|
---|
[427] | 24 |
|
---|
[372] | 25 | VssPreprocessor::VssPreprocessor():
|
---|
[1486] | 26 | mVssRays()
|
---|
[372] | 27 | {
|
---|
| 28 | // this should increase coherence of the samples
|
---|
[1004] | 29 | Environment::GetSingleton()->GetIntValue("VssPreprocessor.samplesPerPass", mSamplesPerPass);
|
---|
| 30 | Environment::GetSingleton()->GetIntValue("VssPreprocessor.initialSamples", mInitialSamples);
|
---|
| 31 | Environment::GetSingleton()->GetIntValue("VssPreprocessor.vssSamples", mVssSamples);
|
---|
| 32 | Environment::GetSingleton()->GetIntValue("VssPreprocessor.vssSamplesPerPass", mVssSamplesPerPass);
|
---|
| 33 | Environment::GetSingleton()->GetBoolValue("VssPreprocessor.useImportanceSampling", mUseImportanceSampling);
|
---|
[574] | 34 |
|
---|
[1004] | 35 | Environment::GetSingleton()->GetBoolValue("VssPreprocessor.loadInitialSamples", mLoadInitialSamples);
|
---|
| 36 | Environment::GetSingleton()->GetBoolValue("VssPreprocessor.storeInitialSamples", mStoreInitialSamples);
|
---|
| 37 | Environment::GetSingleton()->GetBoolValue("VssPreprocessor.useViewSpaceBox", mUseViewSpaceBox);
|
---|
| 38 | Environment::GetSingleton()->GetBoolValue("VssPreprocessor.testBeamSampling", mTestBeamSampling);
|
---|
| 39 | Environment::GetSingleton()->GetBoolValue("VssPreprocessor.enlargeViewSpace", mEnlargeViewSpace);
|
---|
| 40 | Environment::GetSingleton()->GetBoolValue("Preprocessor.detectEmptyViewSpace", mDetectEmptyViewSpace);
|
---|
[694] | 41 |
|
---|
[508] | 42 | useViewspacePlane = mUseViewSpaceBox; //hack
|
---|
[490] | 43 |
|
---|
[1486] | 44 | mViewSpaceBox.Initialize();
|
---|
[675] | 45 |
|
---|
| 46 | Debug << "*********** vss preprocessor options **************" << endl;
|
---|
| 47 | Debug << "use view space box=" << mUseViewSpaceBox << endl;
|
---|
| 48 | Debug << "enlarge view space=" << mEnlargeViewSpace << endl;
|
---|
| 49 | Debug << "*********** end vss preprocessor options **************" << endl;
|
---|
| 50 |
|
---|
[372] | 51 | mStats.open("stats.log");
|
---|
| 52 | }
|
---|
| 53 |
|
---|
[685] | 54 |
|
---|
[372] | 55 | VssPreprocessor::~VssPreprocessor()
|
---|
| 56 | {
|
---|
[674] | 57 | CLEAR_CONTAINER(mVssRays);
|
---|
[372] | 58 | }
|
---|
| 59 |
|
---|
[685] | 60 |
|
---|
[376] | 61 | Vector3
|
---|
[382] | 62 | VssPreprocessor::GetViewpoint(AxisAlignedBox3 *viewSpaceBox)
|
---|
[372] | 63 | {
|
---|
[434] | 64 | AxisAlignedBox3 box;
|
---|
[468] | 65 |
|
---|
[434] | 66 | if (viewSpaceBox)
|
---|
| 67 | box =*viewSpaceBox;
|
---|
[468] | 68 | else
|
---|
[434] | 69 | box = mKdTree->GetBox();
|
---|
[468] | 70 |
|
---|
[434] | 71 | // shrink the box in the y direction
|
---|
| 72 | return box.GetRandomPoint();
|
---|
[372] | 73 | }
|
---|
| 74 |
|
---|
[376] | 75 | Vector3
|
---|
[427] | 76 | VssPreprocessor::GetDirection(const Vector3 &viewpoint,
|
---|
[434] | 77 | AxisAlignedBox3 *viewSpaceBox
|
---|
| 78 | )
|
---|
[372] | 79 | {
|
---|
[434] | 80 | Vector3 point;
|
---|
[600] | 81 | if (!use2dSampling)
|
---|
| 82 | {
|
---|
| 83 | if (0)
|
---|
| 84 | {
|
---|
| 85 | Vector3 normal;
|
---|
| 86 | int i = Random((int)mObjects.size());
|
---|
| 87 | Intersectable *object = mObjects[i];
|
---|
| 88 | object->GetRandomSurfacePoint(point, normal);
|
---|
| 89 | }
|
---|
| 90 | else
|
---|
| 91 | point = mKdTree->GetBox().GetRandomPoint();
|
---|
[534] | 92 | // point = viewpoint + UniformRandomVector();
|
---|
[600] | 93 | }
|
---|
| 94 | else
|
---|
| 95 | {
|
---|
| 96 | AxisAlignedBox3 box;
|
---|
[534] | 97 |
|
---|
[600] | 98 | if (viewSpaceBox)
|
---|
| 99 | box =*viewSpaceBox;
|
---|
| 100 | else
|
---|
| 101 | box = mKdTree->GetBox();
|
---|
[468] | 102 |
|
---|
[600] | 103 | point = box.GetRandomPoint();
|
---|
| 104 | point.y = viewpoint.y;
|
---|
[434] | 105 | }
|
---|
[468] | 106 |
|
---|
[434] | 107 | return point - viewpoint;
|
---|
[372] | 108 | }
|
---|
| 109 |
|
---|
[401] | 110 | int
|
---|
[427] | 111 | VssPreprocessor::GenerateImportanceRays(VssTree *vssTree,
|
---|
[434] | 112 | const int desiredSamples,
|
---|
| 113 | SimpleRayContainer &rays
|
---|
| 114 | )
|
---|
[401] | 115 | {
|
---|
[434] | 116 | int num;
|
---|
| 117 | if (0) {
|
---|
| 118 | float minRayContribution;
|
---|
| 119 | float maxRayContribution;
|
---|
| 120 | float avgRayContribution;
|
---|
[468] | 121 |
|
---|
[434] | 122 | vssTree->GetRayContributionStatistics(minRayContribution,
|
---|
| 123 | maxRayContribution,
|
---|
| 124 | avgRayContribution);
|
---|
[468] | 125 |
|
---|
[434] | 126 | cout<<
|
---|
| 127 | "#MIN_RAY_CONTRIB\n"<<minRayContribution<<endl<<
|
---|
| 128 | "#MAX_RAY_CONTRIB\n"<<maxRayContribution<<endl<<
|
---|
| 129 | "#AVG_RAY_CONTRIB\n"<<avgRayContribution<<endl;
|
---|
[468] | 130 |
|
---|
[434] | 131 | float p = desiredSamples/(float)(avgRayContribution*vssTree->stat.Leaves());
|
---|
| 132 | num = vssTree->GenerateRays(p, rays);
|
---|
| 133 | } else {
|
---|
[534] | 134 | int leaves = vssTree->stat.Leaves();
|
---|
[434] | 135 | num = vssTree->GenerateRays(desiredSamples, leaves, rays);
|
---|
| 136 | }
|
---|
[468] | 137 |
|
---|
[434] | 138 | cout<<"Generated "<<num<<" rays."<<endl;
|
---|
[468] | 139 |
|
---|
[434] | 140 | return num;
|
---|
[427] | 141 | }
|
---|
[376] | 142 |
|
---|
| 143 |
|
---|
[427] | 144 | bool
|
---|
| 145 | VssPreprocessor::ExportRays(const char *filename,
|
---|
[434] | 146 | const VssRayContainer &vssRays,
|
---|
| 147 | const int number
|
---|
| 148 | )
|
---|
[427] | 149 | {
|
---|
[434] | 150 | cout<<"Exporting vss rays..."<<endl<<flush;
|
---|
[468] | 151 |
|
---|
[434] | 152 | Exporter *exporter = NULL;
|
---|
| 153 | exporter = Exporter::GetExporter(filename);
|
---|
[1074] | 154 | exporter->SetWireframe();
|
---|
| 155 | exporter->ExportKdTree(*mKdTree);
|
---|
[434] | 156 | exporter->SetFilled();
|
---|
[1328] | 157 | exporter->ExportScene(mSceneGraph->GetRoot());
|
---|
[434] | 158 | exporter->SetWireframe();
|
---|
[427] | 159 |
|
---|
[1486] | 160 | exporter->SetForcedMaterial(RgbColor(1,0,1));
|
---|
| 161 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 162 | exporter->ResetForcedMaterial();
|
---|
[468] | 163 |
|
---|
[1486] | 164 |
|
---|
[534] | 165 | VssRayContainer rays;
|
---|
| 166 | vssRays.SelectRays(number, rays);
|
---|
| 167 |
|
---|
[685] | 168 | //exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
[468] | 169 |
|
---|
[434] | 170 | delete exporter;
|
---|
[401] | 171 |
|
---|
[434] | 172 | cout<<"done."<<endl<<flush;
|
---|
[427] | 173 |
|
---|
[434] | 174 | return true;
|
---|
[401] | 175 | }
|
---|
| 176 |
|
---|
| 177 |
|
---|
[372] | 178 | bool
|
---|
[434] | 179 | VssPreprocessor::ExportVssTree(char *filename,
|
---|
[438] | 180 | VssTree *tree,
|
---|
| 181 | const Vector3 &dir
|
---|
| 182 | )
|
---|
[434] | 183 | {
|
---|
| 184 | Exporter *exporter = Exporter::GetExporter(filename);
|
---|
| 185 | exporter->SetFilled();
|
---|
[1328] | 186 | exporter->ExportScene(mSceneGraph->GetRoot());
|
---|
[438] | 187 | // exporter->SetWireframe();
|
---|
| 188 | bool result = exporter->ExportVssTree2( *tree, dir );
|
---|
[434] | 189 | delete exporter;
|
---|
| 190 | return result;
|
---|
| 191 | }
|
---|
| 192 |
|
---|
| 193 | bool
|
---|
[427] | 194 | VssPreprocessor::ExportVssTreeLeaf(char *filename,
|
---|
[434] | 195 | VssTree *tree,
|
---|
| 196 | VssTreeLeaf *leaf)
|
---|
[427] | 197 | {
|
---|
[434] | 198 | Exporter *exporter = NULL;
|
---|
| 199 | exporter = Exporter::GetExporter(filename);
|
---|
| 200 | exporter->SetWireframe();
|
---|
| 201 | exporter->ExportKdTree(*mKdTree);
|
---|
[468] | 202 |
|
---|
[1486] | 203 | exporter->SetForcedMaterial(RgbColor(1,0,0));
|
---|
| 204 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 205 | exporter->ResetForcedMaterial();
|
---|
[468] | 206 |
|
---|
[434] | 207 | exporter->SetForcedMaterial(RgbColor(0,0,1));
|
---|
| 208 | exporter->ExportBox(tree->GetBBox(leaf));
|
---|
| 209 | exporter->ResetForcedMaterial();
|
---|
[468] | 210 |
|
---|
[434] | 211 | VssRayContainer rays[4];
|
---|
| 212 | for (int i=0; i < leaf->rays.size(); i++) {
|
---|
| 213 | int k = leaf->rays[i].GetRayClass();
|
---|
| 214 | rays[k].push_back(leaf->rays[i].mRay);
|
---|
| 215 | }
|
---|
[468] | 216 |
|
---|
[434] | 217 | // SOURCE RAY
|
---|
| 218 | exporter->ExportRays(rays[0], RgbColor(1, 0, 0));
|
---|
| 219 | // TERMINATION RAY
|
---|
| 220 | exporter->ExportRays(rays[1], RgbColor(1, 1, 1));
|
---|
| 221 | // PASSING_RAY
|
---|
| 222 | exporter->ExportRays(rays[2], RgbColor(1, 1, 0));
|
---|
| 223 | // CONTAINED_RAY
|
---|
| 224 | exporter->ExportRays(rays[3], RgbColor(0, 0, 1));
|
---|
[427] | 225 |
|
---|
[434] | 226 | delete exporter;
|
---|
| 227 | return true;
|
---|
[427] | 228 | }
|
---|
| 229 |
|
---|
| 230 | void
|
---|
| 231 | VssPreprocessor::ExportVssTreeLeaves(VssTree *tree, const int number)
|
---|
| 232 | {
|
---|
[434] | 233 | vector<VssTreeLeaf *> leaves;
|
---|
| 234 | tree->CollectLeaves(leaves);
|
---|
[427] | 235 |
|
---|
[434] | 236 | int num = 0;
|
---|
| 237 | int i;
|
---|
| 238 | float p = number / (float)leaves.size();
|
---|
| 239 | for (i=0; i < leaves.size(); i++) {
|
---|
| 240 | if (RandomValue(0,1) < p) {
|
---|
| 241 | char filename[64];
|
---|
| 242 | sprintf(filename, "vss-leaf-%04d.x3d", num);
|
---|
| 243 | ExportVssTreeLeaf(filename, tree, leaves[i]);
|
---|
| 244 | num++;
|
---|
[427] | 245 | }
|
---|
[434] | 246 | if (num >= number)
|
---|
| 247 | break;
|
---|
| 248 | }
|
---|
[427] | 249 | }
|
---|
| 250 |
|
---|
[685] | 251 |
|
---|
[535] | 252 | void VssPreprocessor::TestBeamCasting(VssTree *tree,
|
---|
| 253 | ViewCellsManager *vm,
|
---|
| 254 | const ObjectContainer &objects)
|
---|
[530] | 255 | {
|
---|
[540] | 256 | //debuggerWidget = new GlDebuggerWidget(renderer);
|
---|
| 257 | // renderer->resize(640, 480);
|
---|
| 258 | //debuggerWidget->resize(640, 480);
|
---|
| 259 |
|
---|
[531] | 260 | vector<VssTreeLeaf *> leaves;
|
---|
| 261 | tree->CollectLeaves(leaves);
|
---|
[530] | 262 |
|
---|
[535] | 263 | Exporter *exporter = Exporter::GetExporter("shafts.x3d");
|
---|
| 264 |
|
---|
| 265 | exporter->SetWireframe();
|
---|
[540] | 266 | exporter->ExportGeometry(objects);
|
---|
[535] | 267 | exporter->SetFilled();
|
---|
| 268 | //Randomize();
|
---|
[1145] | 269 | // §§matt
|
---|
| 270 | // debuggerWidget = new GlDebuggerWidget(renderer);
|
---|
[540] | 271 |
|
---|
| 272 | /*debuggerWidget->mBeam = beam;
|
---|
| 273 | debuggerWidget->mSourceObject = sourceObj;
|
---|
| 274 | debuggerWidget->mSamples = 10000;
|
---|
| 275 |
|
---|
| 276 | Debug << "showing window" << endl;
|
---|
[1145] | 277 | debuggerWidget->show();
|
---|
[540] | 278 |
|
---|
[1145] | 279 | renderer->makeCurrent();*/
|
---|
[540] | 280 |
|
---|
| 281 | for (int i = 0; i < 10; ++ i)
|
---|
[530] | 282 | {
|
---|
[540] | 283 | Beam beam;
|
---|
| 284 | Intersectable *sourceObj = mObjects[5];
|
---|
| 285 |
|
---|
[531] | 286 | const int index = (int)RandomValue(0, (Real)((int)leaves.size() - 1));
|
---|
| 287 | VssTreeLeaf *leaf = leaves[index];
|
---|
[530] | 288 |
|
---|
[535] | 289 | AxisAlignedBox3 dirBox = tree->GetDirBBox(leaf);
|
---|
[531] | 290 | AxisAlignedBox3 box = tree->GetBBox(leaf);
|
---|
[532] | 291 |
|
---|
[535] | 292 | beam.Construct(box, dirBox);
|
---|
[532] | 293 |
|
---|
| 294 | // collect kd leaves and view cells
|
---|
| 295 | mKdTree->CastBeam(beam);
|
---|
| 296 | vm->CastBeam(beam);
|
---|
| 297 |
|
---|
[577] | 298 | Debug << "found " << (int)beam.mViewCells.size() << " view cells and "
|
---|
| 299 | << (int)beam.mKdNodes.size() << " kd nodes" << endl;
|
---|
[532] | 300 |
|
---|
[530] | 301 | BeamSampleStatistics stats;
|
---|
[1145] | 302 | // §§matt
|
---|
| 303 | /* renderer->SampleBeamContributions(sourceObj,
|
---|
[589] | 304 | beam,
|
---|
| 305 | 200000,
|
---|
[531] | 306 | stats);
|
---|
[530] | 307 |
|
---|
[540] | 308 | char s[64]; sprintf(s, "shaft%04d.png", i);
|
---|
| 309 |
|
---|
| 310 | QImage image = renderer->toImage();
|
---|
| 311 | image.save(s, "PNG");
|
---|
[532] | 312 | Debug << "beam statistics: " << stats << endl << endl;
|
---|
[1145] | 313 | */
|
---|
[540] | 314 | if (1)
|
---|
| 315 | {
|
---|
| 316 | AxisAlignedBox3 sbox = mSceneGraph->GetBox();
|
---|
| 317 | Vector3 bmin = sbox.Min() - 150.0f;
|
---|
| 318 | Vector3 bmax = sbox.Max() + 150.0f;
|
---|
| 319 | AxisAlignedBox3 vbox(bmin, bmax);
|
---|
[535] | 320 |
|
---|
[540] | 321 | exporter->ExportBeam(beam, vbox);
|
---|
| 322 | }
|
---|
[535] | 323 |
|
---|
[540] | 324 | bool exportViewCells = false;
|
---|
[535] | 325 | if (exportViewCells)
|
---|
| 326 | {
|
---|
| 327 | ViewCellContainer::const_iterator it, it_end = beam.mViewCells.end();
|
---|
| 328 |
|
---|
| 329 | for (it = beam.mViewCells.begin(); it != beam.mViewCells.end(); ++ it)
|
---|
| 330 | {
|
---|
| 331 | BspNodeGeometry geom;
|
---|
| 332 | AxisAlignedBox3 vbox;
|
---|
| 333 | vbox.Initialize();
|
---|
[538] | 334 | vbox.Include((*it)->GetMesh());
|
---|
| 335 |
|
---|
| 336 | exporter->SetWireframe();
|
---|
[535] | 337 | exporter->ExportBox(vbox);
|
---|
[538] | 338 | exporter->SetFilled();
|
---|
| 339 | exporter->ExportViewCell(*it);
|
---|
[535] | 340 | }
|
---|
[538] | 341 |
|
---|
| 342 | /*vector<KdNode *>::const_iterator it, it_end = beam.mKdNodes.end();
|
---|
| 343 |
|
---|
| 344 | for (it = beam.mKdNodes.begin(); it != beam.mKdNodes.end(); ++ it)
|
---|
| 345 | {
|
---|
| 346 | exporter->ExportBox(mKdTree->GetBox((*it)));
|
---|
| 347 | }*/
|
---|
[535] | 348 | }
|
---|
[530] | 349 | }
|
---|
[540] | 350 | /*while (1)
|
---|
| 351 | { debuggerWidget->repaint();
|
---|
| 352 | };*/
|
---|
[535] | 353 | delete exporter;
|
---|
[530] | 354 | }
|
---|
| 355 |
|
---|
[540] | 356 |
|
---|
[434] | 357 | float
|
---|
| 358 | VssPreprocessor::GetAvgPvsSize(VssTree *tree,
|
---|
| 359 | const vector<AxisAlignedBox3> &viewcells
|
---|
| 360 | )
|
---|
| 361 | {
|
---|
| 362 | vector<AxisAlignedBox3>::const_iterator it, it_end = viewcells.end();
|
---|
| 363 |
|
---|
| 364 | int sum = 0;
|
---|
| 365 | for (it = viewcells.begin(); it != it_end; ++ it)
|
---|
| 366 | sum += tree->GetPvsSize(*it);
|
---|
[468] | 367 |
|
---|
[434] | 368 | return sum/(float)viewcells.size();
|
---|
| 369 | }
|
---|
| 370 |
|
---|
[427] | 371 | bool
|
---|
[372] | 372 | VssPreprocessor::ComputeVisibility()
|
---|
| 373 | {
|
---|
[579] | 374 | Debug << "type: vss" << endl;
|
---|
[468] | 375 |
|
---|
[372] | 376 | long startTime = GetTime();
|
---|
[468] | 377 |
|
---|
[372] | 378 | int totalSamples = 0;
|
---|
| 379 |
|
---|
| 380 |
|
---|
[1002] | 381 | AxisAlignedBox3 box(mKdTree->GetBox());
|
---|
[534] | 382 |
|
---|
[434] | 383 | if (!useViewspacePlane) {
|
---|
[446] | 384 | float size = 0.05f;
|
---|
[434] | 385 | float s = 0.5f - size;
|
---|
[1002] | 386 | float olds = Magnitude(box.Size());
|
---|
| 387 | box.Enlarge(box.Size()*Vector3(-s));
|
---|
[434] | 388 | Vector3 translation = Vector3(-olds*0.1f, 0, 0);
|
---|
[1002] | 389 | box.SetMin(box.Min() + translation);
|
---|
| 390 | box.SetMax(box.Max() + translation);
|
---|
[434] | 391 | } else {
|
---|
[468] | 392 |
|
---|
[434] | 393 | // sample city like heights
|
---|
[1002] | 394 | box.SetMin(1, box.Min(1) + box.Size(1)*0.2f);
|
---|
| 395 | box.SetMax(1, box.Min(1) + box.Size(1)*0.3f);
|
---|
[434] | 396 | }
|
---|
[427] | 397 |
|
---|
[434] | 398 | if (use2dSampling)
|
---|
[1002] | 399 | box.SetMax(1, box.Min(1));
|
---|
[468] | 400 |
|
---|
[1221] | 401 | cout << "use view space box=" << mUseViewSpaceBox << endl;
|
---|
[579] | 402 |
|
---|
[1076] | 403 |
|
---|
[501] | 404 | if (mUseViewSpaceBox)
|
---|
[487] | 405 | {
|
---|
[674] | 406 | if (!mEnlargeViewSpace)
|
---|
[654] | 407 | {
|
---|
[1486] | 408 | mViewSpaceBox = AxisAlignedBox3(box);
|
---|
[654] | 409 | }
|
---|
[598] | 410 | else
|
---|
| 411 | {
|
---|
[1486] | 412 | mViewSpaceBox = AxisAlignedBox3(mKdTree->GetBox());
|
---|
[677] | 413 |
|
---|
[1052] | 414 | if (0)
|
---|
[750] | 415 | {
|
---|
[1052] | 416 | // HACK: enlarge in y directon
|
---|
[1486] | 417 | Vector3 size = mViewSpaceBox.Size();
|
---|
[1052] | 418 |
|
---|
| 419 | size[1] *= 1.25;
|
---|
| 420 | Vector3 enlarge(size[0] * 0.25f, size[1] * 0.0f, size[2] * 0.25f);
|
---|
| 421 | //Vector3 enlarge(size[0] * 4.0f, 0.0f, 0.0f);
|
---|
[598] | 422 |
|
---|
[1486] | 423 | mViewSpaceBox.Enlarge(enlarge);
|
---|
| 424 | mViewSpaceBox.SetMax(mViewSpaceBox.Max() + enlarge);
|
---|
[750] | 425 | }
|
---|
| 426 | else
|
---|
| 427 | {
|
---|
[1486] | 428 | AxisAlignedBox3 tbox(mViewSpaceBox);
|
---|
[1052] | 429 |
|
---|
[1486] | 430 | Vector3 size = mViewSpaceBox.Size();
|
---|
| 431 | tbox.SetMax(0, mViewSpaceBox.Max(0) + size[0] * 0.5f);
|
---|
| 432 | tbox.SetMin(0, mViewSpaceBox.Min(0) + size[0]);
|
---|
| 433 | mViewSpaceBox = tbox;
|
---|
[750] | 434 | }
|
---|
[598] | 435 | }
|
---|
[487] | 436 | }
|
---|
[434] | 437 | else
|
---|
[487] | 438 | {
|
---|
[1486] | 439 | mViewSpaceBox = AxisAlignedBox3(mKdTree->GetBox());
|
---|
[487] | 440 | }
|
---|
[534] | 441 |
|
---|
[590] | 442 | mSceneGraph->CollectObjects(&mObjects);
|
---|
| 443 |
|
---|
[577] | 444 | if (!mLoadViewCells)
|
---|
[574] | 445 | {
|
---|
[1486] | 446 | //-- generate new view cells from the scratch
|
---|
[1404] | 447 | //-- for construction the manager uses it's own set of samples
|
---|
[1486] | 448 | ConstructViewCells(mViewSpaceBox);
|
---|
[574] | 449 | }
|
---|
[1418] | 450 | #if 0
|
---|
[1264] | 451 | else
|
---|
[651] | 452 | {
|
---|
[1404] | 453 | //-- load view cells from file
|
---|
| 454 | //-- test successful view cells loading by exporting them again
|
---|
| 455 | VssRayContainer dummies;
|
---|
[590] | 456 | mViewCellsManager->Visualize(mObjects, dummies);
|
---|
[1264] | 457 | mViewCellsManager->ExportViewCells("test.xml.zip", mViewCellsManager->GetExportPvs(), mObjects);
|
---|
[590] | 458 | }
|
---|
[1264] | 459 | #endif
|
---|
[1404] | 460 |
|
---|
[1311] | 461 | VssTree *vssTree = NULL;
|
---|
[1404] | 462 | const long initialTime = GetTime();
|
---|
[468] | 463 |
|
---|
[490] | 464 | if (mLoadInitialSamples)
|
---|
| 465 | {
|
---|
| 466 | cout << "Loading samples from file ... ";
|
---|
| 467 | LoadSamples(mVssRays, mObjects);
|
---|
| 468 | cout << "finished\n" << endl;
|
---|
| 469 | totalSamples = (int)mVssRays.size();
|
---|
| 470 | }
|
---|
| 471 | else
|
---|
| 472 | {
|
---|
[534] | 473 | while (totalSamples < mInitialSamples) {
|
---|
[490] | 474 | int passContributingSamples = 0;
|
---|
| 475 | int passSampleContributions = 0;
|
---|
| 476 | int passSamples = 0;
|
---|
[468] | 477 |
|
---|
[490] | 478 | int index = 0;
|
---|
[468] | 479 |
|
---|
[490] | 480 | int sampleContributions;
|
---|
[468] | 481 |
|
---|
[490] | 482 | int s = Min(mSamplesPerPass, mInitialSamples);
|
---|
[1486] | 483 | for (int k=0; k < s; k++)
|
---|
| 484 | {
|
---|
[490] | 485 | Vector3 viewpoint;
|
---|
[1486] | 486 |
|
---|
[490] | 487 | mViewCellsManager->GetViewPoint(viewpoint);
|
---|
[1486] | 488 | Vector3 direction = GetDirection(viewpoint, &mViewSpaceBox);
|
---|
[534] | 489 |
|
---|
[1486] | 490 | sampleContributions = CastRay(viewpoint, direction, 1, mVssRays, mViewSpaceBox);
|
---|
[468] | 491 |
|
---|
[490] | 492 | if (sampleContributions) {
|
---|
| 493 | passContributingSamples ++;
|
---|
| 494 | passSampleContributions += sampleContributions;
|
---|
| 495 | }
|
---|
| 496 | passSamples++;
|
---|
| 497 | totalSamples++;
|
---|
| 498 | }
|
---|
[468] | 499 |
|
---|
[490] | 500 | mPass++;
|
---|
| 501 | int pvsSize = 0;
|
---|
| 502 | float avgRayContrib = (passContributingSamples > 0) ?
|
---|
| 503 | passSampleContributions/(float)passContributingSamples : 0;
|
---|
[468] | 504 |
|
---|
[490] | 505 | cout << "#Pass " << mPass << " : t = " << TimeDiff(startTime, GetTime())*1e-3 << "s" << endl;
|
---|
| 506 | cout << "#TotalSamples=" << totalSamples/1000
|
---|
[651] | 507 | << "#SampleContributions=" << passSampleContributions << " ("
|
---|
[490] | 508 | << 100*passContributingSamples/(float)passSamples<<"%)" << " avgPVS="
|
---|
| 509 | << pvsSize/(float)mObjects.size() << endl
|
---|
| 510 | << "avg ray contrib=" << avgRayContrib << endl;
|
---|
[468] | 511 |
|
---|
[490] | 512 | mStats <<
|
---|
| 513 | "#Pass\n" <<mPass<<endl<<
|
---|
| 514 | "#Time\n" << TimeDiff(startTime, GetTime())*1e-3 << endl<<
|
---|
| 515 | "#TotalSamples\n" << totalSamples<< endl<<
|
---|
| 516 | "#SampleContributions\n" << passSampleContributions << endl <<
|
---|
| 517 | "#PContributingSamples\n"<<100*passContributingSamples/(float)passSamples<<endl <<
|
---|
| 518 | "#AvgPVS\n"<< pvsSize/(float)mObjects.size() << endl <<
|
---|
| 519 | "#AvgRayContrib\n" << avgRayContrib << endl;
|
---|
| 520 | }
|
---|
| 521 |
|
---|
| 522 | cout << "#totalPvsSize=" << mKdTree->CollectLeafPvs() << endl;
|
---|
[534] | 523 |
|
---|
| 524 |
|
---|
| 525 |
|
---|
[490] | 526 | }
|
---|
[564] | 527 |
|
---|
| 528 |
|
---|
[490] | 529 | cout << "#totalRayStackSize=" << (int)mVssRays.size() << endl << flush;
|
---|
| 530 | Debug << (int)mVssRays.size() << " rays generated in "
|
---|
| 531 | << TimeDiff(initialTime, GetTime()) * 1e-3 << " seconds" << endl;
|
---|
[401] | 532 |
|
---|
[490] | 533 | if (mStoreInitialSamples)
|
---|
| 534 | {
|
---|
| 535 | cout << "Writing " << (int)mVssRays.size() << " samples to file ... ";
|
---|
[508] | 536 | ExportSamples(mVssRays);
|
---|
[490] | 537 | cout << "finished\n" << endl;
|
---|
[491] | 538 |
|
---|
| 539 | /*VssRayContainer dummyRays;
|
---|
| 540 | LoadSamples(dummyRays, mObjects);
|
---|
| 541 | Debug << "rays " << (int)mVssRays.size() << " " << dummyRays.size() << endl;
|
---|
| 542 |
|
---|
| 543 | for (int i = 0; i < (int)mVssRays.size(); ++ i)
|
---|
| 544 | {
|
---|
| 545 | Debug << mVssRays[i]->GetOrigin() << " " << mVssRays[i]->GetTermination() << " " << mVssRays[i]->mOriginObject << " " << mVssRays[i]->mTerminationObject << endl;
|
---|
| 546 | Debug << dummyRays[i]->GetOrigin() << " " << dummyRays[i]->GetTermination() << " " << dummyRays[i]->mOriginObject << " " << dummyRays[i]->mTerminationObject << endl << endl;
|
---|
| 547 | }*/
|
---|
[434] | 548 | }
|
---|
[468] | 549 |
|
---|
[534] | 550 |
|
---|
[712] | 551 | //int numExportRays = 2000;
|
---|
| 552 | int numExportRays = 0;
|
---|
[372] | 553 |
|
---|
[434] | 554 | if (numExportRays) {
|
---|
| 555 | char filename[64];
|
---|
| 556 | sprintf(filename, "vss-rays-initial.x3d");
|
---|
| 557 | ExportRays(filename, mVssRays, numExportRays);
|
---|
| 558 | }
|
---|
[468] | 559 |
|
---|
[434] | 560 | vssTree = new VssTree;
|
---|
| 561 | // viewcells = Construct(mVssRays);
|
---|
[468] | 562 |
|
---|
[1486] | 563 | vssTree->Construct(mVssRays, NULL);
|
---|
[434] | 564 | cout<<"VssTree root PVS size = "<<vssTree->GetRootPvsSize()<<endl;
|
---|
[468] | 565 |
|
---|
[1414] | 566 | if (0) ExportRays("kdtree.x3d", mVssRays, 10);
|
---|
[1074] | 567 |
|
---|
[465] | 568 | if (0)
|
---|
| 569 | {
|
---|
| 570 | ExportVssTree("vss-tree-100.x3d", vssTree, Vector3(1,0,0));
|
---|
| 571 | ExportVssTree("vss-tree-001.x3d", vssTree, Vector3(0,0,1));
|
---|
| 572 | ExportVssTree("vss-tree-101.x3d", vssTree, Vector3(1,0,1));
|
---|
| 573 | ExportVssTree("vss-tree-101m.x3d", vssTree, Vector3(-1,0,-1));
|
---|
| 574 | ExportVssTreeLeaves(vssTree, 10);
|
---|
| 575 | }
|
---|
[430] | 576 |
|
---|
[434] | 577 | // viewcells->UpdatePVS(newVssRays);
|
---|
| 578 | // get viewcells as kd tree boxes
|
---|
| 579 | vector<AxisAlignedBox3> kdViewcells;
|
---|
| 580 | if (0) {
|
---|
| 581 | vector<KdLeaf *> leaves;
|
---|
| 582 | mKdTree->CollectLeaves(leaves);
|
---|
| 583 | vector<KdLeaf *>::const_iterator it;
|
---|
| 584 | int targetLeaves = 50;
|
---|
| 585 | float prob = targetLeaves/(float)leaves.size();
|
---|
| 586 | for (it = leaves.begin(); it != leaves.end(); ++it)
|
---|
| 587 | if (RandomValue(0.0f,1.0f) < prob)
|
---|
| 588 | kdViewcells.push_back(mKdTree->GetBox(*it));
|
---|
[468] | 589 |
|
---|
[434] | 590 | float avgPvs = GetAvgPvsSize(vssTree, kdViewcells);
|
---|
| 591 | cout<<"Initial average PVS size = "<<avgPvs<<endl;
|
---|
| 592 | }
|
---|
| 593 |
|
---|
[468] | 594 |
|
---|
[434] | 595 | int samples = 0;
|
---|
| 596 | int pass = 0;
|
---|
[448] | 597 |
|
---|
[535] | 598 |
|
---|
[448] | 599 | // cast view cell samples
|
---|
[557] | 600 | while (samples < mVssSamples)
|
---|
| 601 | {
|
---|
| 602 |
|
---|
[434] | 603 | int num = mVssSamplesPerPass;
|
---|
| 604 | SimpleRayContainer rays;
|
---|
| 605 | VssRayContainer vssRays;
|
---|
[468] | 606 |
|
---|
[434] | 607 | if (!mUseImportanceSampling) {
|
---|
| 608 | for (int j=0; j < num; j++) {
|
---|
[1486] | 609 | Vector3 viewpoint;
|
---|
[487] | 610 | mViewCellsManager->GetViewPoint(viewpoint);
|
---|
[1486] | 611 | Vector3 direction = GetDirection(viewpoint, NULL);
|
---|
[434] | 612 | rays.push_back(SimpleRay(viewpoint, direction));
|
---|
| 613 | }
|
---|
| 614 | } else {
|
---|
| 615 | num = GenerateImportanceRays(vssTree, num, rays);
|
---|
| 616 | }
|
---|
[468] | 617 |
|
---|
[434] | 618 | for (int i=0; i < rays.size(); i++)
|
---|
[1486] | 619 | CastRay(rays[i].mOrigin, rays[i].mDirection, 1, vssRays, mViewSpaceBox);
|
---|
[468] | 620 |
|
---|
[434] | 621 | vssTree->AddRays(vssRays);
|
---|
[468] | 622 |
|
---|
[434] | 623 | if (0) {
|
---|
| 624 | int subdivided = vssTree->UpdateSubdivision();
|
---|
| 625 | cout<<"subdivided leafs = "<<subdivided<<endl;
|
---|
| 626 | }
|
---|
[427] | 627 |
|
---|
[434] | 628 | float avgPvs = GetAvgPvsSize(vssTree, kdViewcells);
|
---|
| 629 | cout<<"Average PVS size = "<<avgPvs<<endl;
|
---|
[430] | 630 |
|
---|
[517] | 631 | /// compute view cell contribution of rays
|
---|
[574] | 632 | mViewCellsManager->ComputeSampleContributions(vssRays, true, false);
|
---|
[517] | 633 |
|
---|
[434] | 634 | if (numExportRays) {
|
---|
| 635 | char filename[64];
|
---|
| 636 | if (mUseImportanceSampling)
|
---|
| 637 | sprintf(filename, "vss-rays-i%04d.x3d", pass);
|
---|
| 638 | else
|
---|
| 639 | sprintf(filename, "vss-rays-%04d.x3d", pass);
|
---|
[468] | 640 |
|
---|
[434] | 641 | ExportRays(filename, vssRays, numExportRays);
|
---|
[401] | 642 | }
|
---|
[386] | 643 |
|
---|
[434] | 644 | samples+=num;
|
---|
| 645 | float pvs = vssTree->GetAvgPvsSize();
|
---|
| 646 | cout<<"*****************************\n";
|
---|
| 647 | cout<<samples<<" avgPVS ="<<pvs<<endl;
|
---|
| 648 | cout<<"VssTree root PVS size = "<<vssTree->GetRootPvsSize()<<endl;
|
---|
| 649 | cout<<"*****************************\n";
|
---|
[557] | 650 | // if (samples >= mVssSamples) break;
|
---|
| 651 | pass ++;
|
---|
[434] | 652 | }
|
---|
[448] | 653 |
|
---|
[574] | 654 | if (mTestBeamSampling && mUseGlRenderer)
|
---|
| 655 | {
|
---|
| 656 | TestBeamCasting(vssTree, mViewCellsManager, mObjects);
|
---|
[553] | 657 | }
|
---|
| 658 |
|
---|
[1221] | 659 | if (0) Debug << vssTree->stat << endl;
|
---|
[468] | 660 |
|
---|
[574] | 661 | if (0)
|
---|
| 662 | {
|
---|
[1414] | 663 | VssRayContainer viewCellRays;
|
---|
| 664 | // compute rays used for view cells construction
|
---|
| 665 | const int numRays = mViewCellsManager->GetVisualizationSamples();
|
---|
| 666 | vssTree->CollectRays(viewCellRays, numRays);
|
---|
[540] | 667 | }
|
---|
[535] | 668 |
|
---|
[605] | 669 |
|
---|
[1486] | 670 | ////////////////////
|
---|
| 671 | //-- render simulation after construction
|
---|
[1414] | 672 |
|
---|
[468] | 673 | mRenderSimulator->RenderScene();
|
---|
| 674 | SimulationStatistics ss;
|
---|
| 675 | mRenderSimulator->GetStatistics(ss);
|
---|
[1414] | 676 | Debug << "\nFinal view cells partition render time\n" << ss << endl;
|
---|
| 677 | cout << "\nFinal view cells partition render time\n" << ss << endl;
|
---|
[468] | 678 |
|
---|
[434] | 679 | delete vssTree;
|
---|
[475] | 680 |
|
---|
[434] | 681 | return true;
|
---|
[466] | 682 | }
|
---|
[697] | 683 |
|
---|
[1281] | 684 | } |
---|