[440] | 1 | #include "ViewCellsManager.h"
|
---|
| 2 | #include "RenderSimulator.h"
|
---|
| 3 | #include "Mesh.h"
|
---|
| 4 | #include "Triangle3.h"
|
---|
| 5 | #include "ViewCell.h"
|
---|
| 6 | #include "Environment.h"
|
---|
| 7 | #include "X3dParser.h"
|
---|
| 8 | #include "ViewCellBsp.h"
|
---|
| 9 | #include "KdTree.h"
|
---|
[1233] | 10 | #include "HierarchyManager.h"
|
---|
[440] | 11 | #include "Exporter.h"
|
---|
[442] | 12 | #include "VspBspTree.h"
|
---|
[508] | 13 | #include "ViewCellsParser.h"
|
---|
[532] | 14 | #include "Beam.h"
|
---|
[540] | 15 | #include "VssPreprocessor.h"
|
---|
| 16 | #include "RssPreprocessor.h"
|
---|
[931] | 17 | #include "BoundingBoxConverter.h"
|
---|
[979] | 18 | #include "GlRenderer.h"
|
---|
[1001] | 19 | #include "ResourceManager.h"
|
---|
[1315] | 20 | #include "IntersectableWrapper.h"
|
---|
[1233] | 21 | #include "VspTree.h"
|
---|
| 22 | #include "OspTree.h"
|
---|
[1259] | 23 | #include "BvHierarchy.h"
|
---|
[1520] | 24 | #include "SamplingStrategy.h"
|
---|
[1545] | 25 | #include "SceneGraph.h"
|
---|
[440] | 26 |
|
---|
[1278] | 27 |
|
---|
[1159] | 28 | // should not count origin object for sampling because it disturbs heuristics
|
---|
[1166] | 29 | #define SAMPLE_ORIGIN_OBJECTS 0
|
---|
[931] | 30 |
|
---|
[1594] | 31 | // $$JB HACK
|
---|
[1613] | 32 | #define USE_KD_PVS 1
|
---|
| 33 | #define KD_PVS_AREA 1e-3f
|
---|
[1486] | 34 |
|
---|
[863] | 35 | namespace GtpVisibilityPreprocessor {
|
---|
[860] | 36 |
|
---|
| 37 |
|
---|
[712] | 38 | // HACK
|
---|
| 39 | const static bool SAMPLE_AFTER_SUBDIVISION = true;
|
---|
[1580] | 40 | const static bool CLAMP_TO_BOX = true;
|
---|
[517] | 41 |
|
---|
[697] | 42 | template <typename T> class myless
|
---|
| 43 | {
|
---|
| 44 | public:
|
---|
| 45 | //bool operator() (HierarchyNode *v1, HierarchyNode *v2) const
|
---|
| 46 | bool operator() (T v1, T v2) const
|
---|
| 47 | {
|
---|
| 48 | return (v1->GetMergeCost() < v2->GetMergeCost());
|
---|
| 49 | }
|
---|
| 50 | };
|
---|
| 51 |
|
---|
| 52 |
|
---|
[1264] | 53 | ViewCellsManager::ViewCellsManager(ViewCellsTree *viewCellsTree):
|
---|
[480] | 54 | mRenderer(NULL),
|
---|
[574] | 55 | mInitialSamples(0),
|
---|
[440] | 56 | mConstructionSamples(0),
|
---|
| 57 | mPostProcessSamples(0),
|
---|
[470] | 58 | mVisualizationSamples(0),
|
---|
| 59 | mTotalAreaValid(false),
|
---|
[517] | 60 | mTotalArea(0.0f),
|
---|
[547] | 61 | mViewCellsFinished(false),
|
---|
[562] | 62 | mMaxPvsSize(9999999),
|
---|
[564] | 63 | mMinPvsSize(0), // one means only empty view cells are invalid
|
---|
[719] | 64 | mMaxPvsRatio(1.0),
|
---|
[1145] | 65 | mViewCellPvsIsUpdated(false),
|
---|
[1264] | 66 | mPreprocessor(NULL),
|
---|
[1545] | 67 | mViewCellsTree(viewCellsTree),
|
---|
| 68 | mUsePredefinedViewCells(false)
|
---|
[440] | 69 | {
|
---|
[542] | 70 | mViewSpaceBox.Initialize();
|
---|
[482] | 71 | ParseEnvironment();
|
---|
[580] | 72 |
|
---|
[1264] | 73 | mViewCellsTree->SetViewCellsManager(this);
|
---|
| 74 | //mViewCellsTree = new ViewCellsTree(this);
|
---|
[440] | 75 | }
|
---|
| 76 |
|
---|
[517] | 77 |
|
---|
[482] | 78 | void ViewCellsManager::ParseEnvironment()
|
---|
| 79 | {
|
---|
[503] | 80 | // visualization stuff
|
---|
[1004] | 81 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
|
---|
| 82 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
|
---|
| 83 | Environment::GetSingleton()->GetFloatValue("ViewCells.maxPvsRatio", mMaxPvsRatio);
|
---|
[664] | 84 |
|
---|
[1004] | 85 | Environment::GetSingleton()->GetBoolValue("ViewCells.processOnlyValidViewCells", mOnlyValidViewCells);
|
---|
[485] | 86 |
|
---|
[1004] | 87 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samples", mConstructionSamples);
|
---|
| 88 | Environment::GetSingleton()->GetIntValue("ViewCells.PostProcess.samples", mPostProcessSamples);
|
---|
| 89 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.useRaysForMerge", mUseRaysForMerge);
|
---|
[595] | 90 |
|
---|
[1004] | 91 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.samples", mVisualizationSamples);
|
---|
[574] | 92 |
|
---|
[1004] | 93 | Environment::GetSingleton()->GetIntValue("ViewCells.Construction.samplesPerPass", mSamplesPerPass);
|
---|
| 94 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportToFile", mExportViewCells);
|
---|
[581] | 95 |
|
---|
[1004] | 96 | Environment::GetSingleton()->GetIntValue("ViewCells.active", mNumActiveViewCells);
|
---|
| 97 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.compress", mCompressViewCells);
|
---|
| 98 | Environment::GetSingleton()->GetBoolValue("ViewCells.Visualization.useClipPlane", mUseClipPlaneForViz);
|
---|
| 99 | Environment::GetSingleton()->GetBoolValue("ViewCells.PostProcess.merge", mMergeViewCells);
|
---|
| 100 | Environment::GetSingleton()->GetBoolValue("ViewCells.evaluateViewCells", mEvaluateViewCells);
|
---|
| 101 | Environment::GetSingleton()->GetBoolValue("ViewCells.showVisualization", mShowVisualization);
|
---|
| 102 | Environment::GetSingleton()->GetIntValue("ViewCells.Filter.maxSize", mMaxFilterSize);
|
---|
| 103 | Environment::GetSingleton()->GetFloatValue("ViewCells.Filter.width", mFilterWidth);
|
---|
| 104 | Environment::GetSingleton()->GetIntValue("ViewCells.renderCostEvaluationType", mRenderCostEvaluationType);
|
---|
[710] | 105 |
|
---|
[1004] | 106 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportBboxesForPvs", mExportBboxesForPvs);
|
---|
| 107 | Environment::GetSingleton()->GetBoolValue("ViewCells.exportPvs", mExportPvs);
|
---|
[1142] | 108 |
|
---|
[664] | 109 | char buf[100];
|
---|
[1004] | 110 | Environment::GetSingleton()->GetStringValue("ViewCells.samplingType", buf);
|
---|
[664] | 111 |
|
---|
[660] | 112 |
|
---|
[1020] | 113 | // sampling type for view cells construction samples
|
---|
[664] | 114 | if (strcmp(buf, "box") == 0)
|
---|
[722] | 115 | {
|
---|
[1520] | 116 | mSamplingType = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
[722] | 117 | }
|
---|
[664] | 118 | else if (strcmp(buf, "directional") == 0)
|
---|
[722] | 119 | {
|
---|
[1520] | 120 | mSamplingType = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
|
---|
[722] | 121 | }
|
---|
[1020] | 122 | else if (strcmp(buf, "object_directional") == 0)
|
---|
| 123 | {
|
---|
[1520] | 124 | mSamplingType = SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION;
|
---|
[1020] | 125 | }
|
---|
[1022] | 126 | /*else if (strcmp(buf, "interior") == 0)
|
---|
| 127 | {
|
---|
| 128 | mSamplingType = Preprocessor::OBJECTS_INTERIOR_DISTRIBUTION;
|
---|
| 129 | }*/
|
---|
[1020] | 130 | else
|
---|
| 131 | {
|
---|
[666] | 132 | Debug << "error! wrong sampling type" << endl;
|
---|
| 133 | exit(0);
|
---|
| 134 | }
|
---|
[660] | 135 |
|
---|
[1020] | 136 | // sampling type for evaluation samples
|
---|
[1004] | 137 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.samplingType", buf);
|
---|
[722] | 138 |
|
---|
| 139 | if (strcmp(buf, "box") == 0)
|
---|
| 140 | {
|
---|
[1520] | 141 | mEvaluationSamplingType = SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
[722] | 142 | }
|
---|
| 143 | else if (strcmp(buf, "directional") == 0)
|
---|
| 144 | {
|
---|
[1520] | 145 | mEvaluationSamplingType = SamplingStrategy::DIRECTION_BASED_DISTRIBUTION;
|
---|
[722] | 146 | }
|
---|
[1020] | 147 | else if (strcmp(buf, "object_directional") == 0)
|
---|
[722] | 148 | {
|
---|
[1520] | 149 | mEvaluationSamplingType = SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION;
|
---|
[1020] | 150 | }
|
---|
[1022] | 151 | /*else if (strcmp(buf, "interior") == 0)
|
---|
[1020] | 152 | {
|
---|
[1520] | 153 | mEvaluationSamplingType = SamplingStrategy::OBJECTS_INTERIOR_DISTRIBUTION;
|
---|
[1022] | 154 | }*/
|
---|
[1020] | 155 | else
|
---|
| 156 | {
|
---|
[722] | 157 | Debug << "error! wrong sampling type" << endl;
|
---|
| 158 | exit(0);
|
---|
| 159 | }
|
---|
[503] | 160 |
|
---|
[1004] | 161 | Environment::GetSingleton()->GetStringValue("ViewCells.renderCostEvaluationType", buf);
|
---|
[728] | 162 |
|
---|
[734] | 163 | if (strcmp(buf, "perobject") == 0)
|
---|
[728] | 164 | {
|
---|
| 165 | mRenderCostEvaluationType = ViewCellsManager::PER_OBJECT;
|
---|
| 166 | }
|
---|
| 167 | else if (strcmp(buf, "directional") == 0)
|
---|
| 168 | {
|
---|
| 169 | mRenderCostEvaluationType = ViewCellsManager::PER_TRIANGLE;
|
---|
| 170 | }
|
---|
| 171 | else
|
---|
| 172 | {
|
---|
| 173 | Debug << "error! wrong sampling type" << endl;
|
---|
| 174 | exit(0);
|
---|
| 175 | }
|
---|
| 176 |
|
---|
[1004] | 177 | Environment::GetSingleton()->GetStringValue("ViewCells.Visualization.colorCode", buf);
|
---|
[722] | 178 |
|
---|
[482] | 179 | if (strcmp(buf, "PVS") == 0)
|
---|
| 180 | mColorCode = 1;
|
---|
| 181 | else if (strcmp(buf, "MergedLeaves") == 0)
|
---|
| 182 | mColorCode = 2;
|
---|
| 183 | else if (strcmp(buf, "MergedTreeDiff") == 0)
|
---|
| 184 | mColorCode = 3;
|
---|
| 185 | else
|
---|
| 186 | mColorCode = 0;
|
---|
| 187 |
|
---|
[664] | 188 |
|
---|
[1418] | 189 | Debug << "************ View Cells Manager options ***************" << endl;
|
---|
[664] | 190 | Debug << "color code: " << mColorCode << endl;
|
---|
| 191 |
|
---|
| 192 | Debug << "export rays: " << mExportRays << endl;
|
---|
| 193 | Debug << "export geometry: " << mExportGeometry << endl;
|
---|
| 194 | Debug << "max pvs ratio: " << mMaxPvsRatio << endl;
|
---|
| 195 |
|
---|
| 196 | Debug << "process only valid view cells: " << mOnlyValidViewCells << endl;
|
---|
| 197 | Debug << "construction samples: " << mConstructionSamples << endl;
|
---|
| 198 | Debug << "post process samples: " << mPostProcessSamples << endl;
|
---|
| 199 | Debug << "post process use rays for merge: " << mUseRaysForMerge << endl;
|
---|
| 200 | Debug << "visualization samples: " << mVisualizationSamples << endl;
|
---|
| 201 | Debug << "construction samples per pass: " << mSamplesPerPass << endl;
|
---|
| 202 | Debug << "export to file: " << mExportViewCells << endl;
|
---|
| 203 |
|
---|
[801] | 204 | Debug << "active view cells: " << mNumActiveViewCells << endl;
|
---|
[664] | 205 | Debug << "post process compress: " << mCompressViewCells << endl;
|
---|
| 206 | Debug << "visualization use clipPlane: " << mUseClipPlaneForViz << endl;
|
---|
| 207 | Debug << "post process merge: " << mMergeViewCells << endl;
|
---|
| 208 | Debug << "evaluate view cells: " << mEvaluateViewCells << endl;
|
---|
| 209 | Debug << "sampling type: " << mSamplingType << endl;
|
---|
[801] | 210 | Debug << "render cost evaluation type: " << mRenderCostEvaluationType << endl;
|
---|
[728] | 211 | Debug << "evaluation sampling type: " << mEvaluationSamplingType << endl;
|
---|
[666] | 212 | Debug << "show visualization: " << mShowVisualization << endl;
|
---|
[697] | 213 | Debug << "filter width: " << mFilterWidth << endl;
|
---|
[710] | 214 | Debug << "sample after subdivision: " << SAMPLE_AFTER_SUBDIVISION << endl;
|
---|
[850] | 215 |
|
---|
| 216 | Debug << "export bounding boxes: " << mExportBboxesForPvs << endl;
|
---|
| 217 | Debug << "export pvs for view cells: " << mExportPvs << endl;
|
---|
[664] | 218 | Debug << endl;
|
---|
[440] | 219 | }
|
---|
| 220 |
|
---|
[485] | 221 |
|
---|
[440] | 222 | ViewCellsManager::~ViewCellsManager()
|
---|
| 223 | {
|
---|
[1020] | 224 | // HACK: if view cells tree does not
|
---|
[1264] | 225 | // handle view cells, we have to do it here
|
---|
[1020] | 226 | // question: rather create view cells resource manager?
|
---|
[598] | 227 | if (!ViewCellsTreeConstructed())
|
---|
[1141] | 228 | {
|
---|
[598] | 229 | CLEAR_CONTAINER(mViewCells);
|
---|
[1141] | 230 | }
|
---|
[440] | 231 | }
|
---|
| 232 |
|
---|
[1221] | 233 |
|
---|
[1613] | 234 |
|
---|
[1221] | 235 | AxisAlignedBox3 ViewCellsManager::GetViewCellBox(ViewCell *vc)
|
---|
[859] | 236 | {
|
---|
| 237 | Mesh *m = vc->GetMesh();
|
---|
| 238 |
|
---|
[1563] | 239 | if (m)
|
---|
| 240 | {
|
---|
| 241 | m->ComputeBoundingBox();
|
---|
| 242 | return m->mBox;
|
---|
[859] | 243 | }
|
---|
[485] | 244 |
|
---|
[859] | 245 | AxisAlignedBox3 box;
|
---|
| 246 | box.Initialize();
|
---|
| 247 |
|
---|
| 248 | if (!vc->IsLeaf()) {
|
---|
| 249 | ViewCellInterior *vci = (ViewCellInterior *) vc;
|
---|
| 250 |
|
---|
| 251 | ViewCellContainer::iterator it = vci->mChildren.begin();
|
---|
| 252 | for (; it != vci->mChildren.end(); ++it) {
|
---|
| 253 | box.Include(GetViewCellBox(*it));
|
---|
| 254 | }
|
---|
| 255 | }
|
---|
| 256 |
|
---|
| 257 | return box;
|
---|
| 258 | }
|
---|
| 259 |
|
---|
[693] | 260 |
|
---|
[574] | 261 | int ViewCellsManager::CastPassSamples(const int samplesPerPass,
|
---|
| 262 | const int sampleType,
|
---|
| 263 | VssRayContainer &passSamples) const
|
---|
[527] | 264 | {
|
---|
[570] | 265 | SimpleRayContainer simpleRays;
|
---|
[1221] | 266 | const long startTime = GetTime();
|
---|
[564] | 267 |
|
---|
[1221] | 268 | mPreprocessor->GenerateRays(samplesPerPass, sampleType, simpleRays);
|
---|
[1473] | 269 | Debug << "generated " << samplesPerPass << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[1221] | 270 |
|
---|
[573] | 271 | // shoot simple ray and add it to importance samples
|
---|
[1520] | 272 | mPreprocessor->CastRays(simpleRays, passSamples, true);
|
---|
[1473] | 273 | Debug << "cast " << samplesPerPass << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[570] | 274 |
|
---|
[574] | 275 | return (int)passSamples.size();
|
---|
| 276 | }
|
---|
[570] | 277 |
|
---|
[574] | 278 |
|
---|
| 279 | /// helper function which destroys rays or copies them into the output ray container
|
---|
[639] | 280 | inline void disposeRays(VssRayContainer &rays, VssRayContainer *outRays)
|
---|
[574] | 281 | {
|
---|
| 282 | cout << "disposing samples ... ";
|
---|
[582] | 283 | long startTime = GetTime();
|
---|
| 284 | int n = (int)rays.size();
|
---|
| 285 |
|
---|
[573] | 286 | if (outRays)
|
---|
[542] | 287 | {
|
---|
[574] | 288 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
| 289 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 290 | {
|
---|
| 291 | outRays->push_back(*it);
|
---|
| 292 | }
|
---|
[573] | 293 | }
|
---|
| 294 | else
|
---|
| 295 | {
|
---|
[639] | 296 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
| 297 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 298 | {
|
---|
| 299 | if (!(*it)->IsActive())
|
---|
| 300 | delete (*it);
|
---|
| 301 | }
|
---|
[573] | 302 | }
|
---|
[639] | 303 |
|
---|
[574] | 304 | cout << "finished" << endl;
|
---|
[582] | 305 | Debug << "disposed " << n << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[573] | 306 | }
|
---|
[570] | 307 |
|
---|
| 308 |
|
---|
[573] | 309 | int ViewCellsManager::Construct(Preprocessor *preprocessor, VssRayContainer *outRays)
|
---|
| 310 | {
|
---|
| 311 | int numSamples = 0;
|
---|
[1077] | 312 |
|
---|
[573] | 313 | SimpleRayContainer simpleRays;
|
---|
[574] | 314 | VssRayContainer initialSamples;
|
---|
[540] | 315 |
|
---|
[1381] | 316 | // store pointer to preprocessor for further use during construction
|
---|
| 317 | mPreprocessor = preprocessor;
|
---|
| 318 |
|
---|
[1563] | 319 |
|
---|
[1381] | 320 | ///////////////////////////////////////////////////////
|
---|
| 321 | //-- Initial sampling for the construction of the view cell hierarchy.
|
---|
| 322 | //-- We use uniform sampling / box based sampling.
|
---|
| 323 |
|
---|
[752] | 324 | long startTime = GetTime();
|
---|
[1381] | 325 | cout << "view cell construction: casting " << mInitialSamples << " initial samples ... ";
|
---|
[1414] | 326 |
|
---|
[1381] | 327 | // cast initial samples
|
---|
| 328 | CastPassSamples(mInitialSamples, mSamplingType, initialSamples);
|
---|
[1278] | 329 |
|
---|
[1221] | 330 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[574] | 331 |
|
---|
[573] | 332 | // construct view cells
|
---|
[752] | 333 | ConstructSubdivision(preprocessor->mObjects, initialSamples);
|
---|
[540] | 334 |
|
---|
[727] | 335 | // initial samples count for overall samples ...
|
---|
[752] | 336 | numSamples += mInitialSamples;
|
---|
[542] | 337 |
|
---|
[574] | 338 | // rays can be passed or deleted
|
---|
[639] | 339 | disposeRays(initialSamples, outRays);
|
---|
[752] | 340 |
|
---|
| 341 | cout << "time needed for initial construction: "
|
---|
| 342 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 343 |
|
---|
| 344 | Debug << "time needed for initial construction: "
|
---|
| 345 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 346 |
|
---|
[1444] | 347 | // collect view cells and compute statistics
|
---|
| 348 | ResetViewCells();
|
---|
[752] | 349 |
|
---|
[1444] | 350 |
|
---|
| 351 | ///////////////////
|
---|
| 352 | //-- Initial hierarchy construction finished.
|
---|
[1381] | 353 | //-- We can do some stats and visualization
|
---|
| 354 |
|
---|
[1444] | 355 | if (0)
|
---|
[660] | 356 | {
|
---|
[1444] | 357 | //-- export initial view cell partition
|
---|
[1563] | 358 | Debug << "\nView cells after initial sampling:\n" << mCurrentViewCellsStats << endl;
|
---|
[1416] | 359 |
|
---|
[1414] | 360 | const string filename("viewcells.wrl");
|
---|
| 361 | Exporter *exporter = Exporter::GetExporter(filename.c_str());
|
---|
[712] | 362 |
|
---|
[660] | 363 | if (exporter)
|
---|
| 364 | {
|
---|
[1414] | 365 | cout << "exporting initial view cells (=leaves) to " << filename.c_str() << " ... ";
|
---|
| 366 |
|
---|
[660] | 367 | if (mExportGeometry)
|
---|
[712] | 368 | {
|
---|
[660] | 369 | exporter->ExportGeometry(preprocessor->mObjects);
|
---|
[712] | 370 | }
|
---|
[660] | 371 |
|
---|
[750] | 372 | exporter->SetWireframe();
|
---|
[1416] | 373 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[660] | 374 |
|
---|
| 375 | delete exporter;
|
---|
[712] | 376 | cout << "finished" << endl;
|
---|
[660] | 377 | }
|
---|
| 378 | }
|
---|
| 379 |
|
---|
[1381] | 380 |
|
---|
[1419] | 381 | //////////////////////
|
---|
[1381] | 382 | //-- Cast some more sampling after initial construction.
|
---|
| 383 | //-- The additional rays can be used to gain
|
---|
| 384 | //-- some more information before the bottom-up merge
|
---|
| 385 | //-- note: guided rays could be used for this task
|
---|
| 386 |
|
---|
[1414] | 387 | // time spent after construction of the initial partition
|
---|
[1381] | 388 | startTime = GetTime();
|
---|
[574] | 389 | const int n = mConstructionSamples; //+initialSamples;
|
---|
[666] | 390 | // should we use directional samples?
|
---|
[1520] | 391 | bool dirSamples = (mSamplingType == SamplingStrategy::DIRECTION_BASED_DISTRIBUTION);
|
---|
[573] | 392 |
|
---|
| 393 | while (numSamples < n)
|
---|
| 394 | {
|
---|
[596] | 395 | cout << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
[727] | 396 | Debug << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
| 397 |
|
---|
[574] | 398 | VssRayContainer constructionSamples;
|
---|
| 399 |
|
---|
[694] | 400 | const int samplingType = mSamplingType;
|
---|
[1444] | 401 | //dirSamples ? Preprocessor::DIRECTION_BASED_DISTRIBUTION : Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
[667] | 402 |
|
---|
[720] | 403 | if (0) dirSamples = !dirSamples; // toggle sampling method
|
---|
[667] | 404 |
|
---|
[727] | 405 | // cast new samples
|
---|
[574] | 406 | numSamples += CastPassSamples(mSamplesPerPass,
|
---|
[666] | 407 | samplingType,
|
---|
[574] | 408 | constructionSamples);
|
---|
| 409 |
|
---|
| 410 | cout << "finished" << endl;
|
---|
| 411 | cout << "computing sample contribution for " << (int)constructionSamples.size() << " samples ... ";
|
---|
| 412 |
|
---|
[727] | 413 | // computes sample contribution of cast rays TODO: leak?
|
---|
| 414 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
[605] | 415 | ComputeSampleContributions(constructionSamples, true, false);
|
---|
[712] | 416 |
|
---|
[574] | 417 | cout << "finished" << endl;
|
---|
| 418 |
|
---|
[639] | 419 | disposeRays(constructionSamples, outRays);
|
---|
[574] | 420 | cout << "total samples: " << numSamples << endl;
|
---|
[542] | 421 | }
|
---|
[752] | 422 |
|
---|
[1381] | 423 |
|
---|
[1563] | 424 | if (0)
|
---|
| 425 | {
|
---|
| 426 | ///////////////
|
---|
| 427 | //-- Get stats after the additional sampling step
|
---|
| 428 | //-- and before the bottom-up merge step
|
---|
[570] | 429 |
|
---|
[1563] | 430 | EvaluateViewCellsStats();
|
---|
| 431 | Debug << "\noriginal view cell partition before post process:\n"
|
---|
| 432 | << mCurrentViewCellsStats << endl;
|
---|
| 433 |
|
---|
| 434 | mRenderer->RenderScene();
|
---|
| 435 | SimulationStatistics ss;
|
---|
| 436 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[660] | 437 |
|
---|
[1563] | 438 | Debug << ss << endl;
|
---|
| 439 | }
|
---|
[660] | 440 |
|
---|
[1416] | 441 | ////////////////////
|
---|
[1381] | 442 | //-- post processing of the initial construction
|
---|
| 443 | //-- We can bottom-up merge the view cells in this step
|
---|
[1444] | 444 | //-- We can additionally cast some post processing sample rays.
|
---|
| 445 | //-- These rays can be used to store the view cells with the rays
|
---|
[1381] | 446 |
|
---|
| 447 | VssRayContainer postProcessSamples;
|
---|
| 448 | cout << "casting " << mPostProcessSamples << " post processing samples ... ";
|
---|
| 449 |
|
---|
| 450 | CastPassSamples(mPostProcessSamples, mSamplingType, postProcessSamples);
|
---|
| 451 |
|
---|
| 452 | cout << "finished" << endl;
|
---|
[574] | 453 | cout << "starting post processing and visualization" << endl;
|
---|
| 454 |
|
---|
[1444] | 455 | // store view cells with rays for post processing?
|
---|
[574] | 456 | const bool storeViewCells = true;
|
---|
[605] | 457 |
|
---|
| 458 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 459 | ComputeSampleContributions(postProcessSamples, true, storeViewCells);
|
---|
[663] | 460 |
|
---|
[1381] | 461 | PostProcess(preprocessor->mObjects, postProcessSamples);
|
---|
[570] | 462 |
|
---|
[1414] | 463 | const float secs = TimeDiff(startTime, GetTime()) * 1e-3f;
|
---|
| 464 | cout << "post processing (=merge) finished in " << secs << " secs" << endl;
|
---|
[752] | 465 |
|
---|
[1414] | 466 | Debug << "post processing time: " << secs << endl;
|
---|
[1002] | 467 | disposeRays(postProcessSamples, outRays);
|
---|
| 468 |
|
---|
[801] | 469 |
|
---|
[1416] | 470 | ////////////////
|
---|
[1381] | 471 | //-- Evaluation of the resulting view cell partition.
|
---|
| 472 | //-- We cast a number of new samples and measure the render cost
|
---|
| 473 |
|
---|
[801] | 474 | if (mEvaluateViewCells)
|
---|
| 475 | {
|
---|
[1145] | 476 | EvalViewCellPartition();
|
---|
[801] | 477 | }
|
---|
[1381] | 478 |
|
---|
[1416] | 479 | /////////////////
|
---|
[1381] | 480 | //-- Finally, we do some visualization
|
---|
| 481 |
|
---|
[666] | 482 | if (mShowVisualization)
|
---|
| 483 | {
|
---|
| 484 | VssRayContainer visualizationSamples;
|
---|
[574] | 485 |
|
---|
[1520] | 486 | ////////
|
---|
[1381] | 487 | //-- visualization rays, e.g., to show some samples in the scene
|
---|
[666] | 488 | CastPassSamples(mVisualizationSamples,
|
---|
[1520] | 489 | SamplingStrategy::DIRECTION_BASED_DISTRIBUTION,
|
---|
[666] | 490 | visualizationSamples);
|
---|
[574] | 491 |
|
---|
[666] | 492 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 493 | ComputeSampleContributions(visualizationSamples, true, storeViewCells);
|
---|
[574] | 494 |
|
---|
[1444] | 495 | // various visualizations
|
---|
[666] | 496 | Visualize(preprocessor->mObjects, visualizationSamples);
|
---|
[574] | 497 |
|
---|
[666] | 498 | disposeRays(visualizationSamples, outRays);
|
---|
| 499 | }
|
---|
[574] | 500 |
|
---|
[1444] | 501 | // recalculate view cells
|
---|
| 502 | EvaluateViewCellsStats();
|
---|
| 503 |
|
---|
[573] | 504 | return numSamples;
|
---|
[527] | 505 | }
|
---|
| 506 |
|
---|
[547] | 507 |
|
---|
[1418] | 508 | AxisAlignedPlane *ViewCellsManager::GetClipPlane()
|
---|
[1416] | 509 | {
|
---|
| 510 | return mUseClipPlaneForViz ? &mClipPlaneForViz : NULL;
|
---|
| 511 | }
|
---|
| 512 |
|
---|
| 513 |
|
---|
[752] | 514 | void ViewCellsManager::EvalViewCellHistogram(const string filename,
|
---|
| 515 | const int nViewCells)
|
---|
[728] | 516 | {
|
---|
| 517 | std::ofstream outstream;
|
---|
| 518 | outstream.open(filename.c_str());
|
---|
| 519 |
|
---|
| 520 | ViewCellContainer viewCells;
|
---|
[735] | 521 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[728] | 522 |
|
---|
| 523 | float maxRenderCost, minRenderCost;
|
---|
[734] | 524 |
|
---|
| 525 | // sort by render cost
|
---|
| 526 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerRenderCost);
|
---|
| 527 |
|
---|
| 528 | minRenderCost = viewCells.front()->GetRenderCost();
|
---|
| 529 | maxRenderCost = viewCells.back()->GetRenderCost();
|
---|
| 530 |
|
---|
[991] | 531 | Debug << "histogram min rc: " << minRenderCost << " max rc: " << maxRenderCost << endl;
|
---|
[736] | 532 |
|
---|
[997] | 533 | int histoIntervals;
|
---|
[1004] | 534 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 535 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 536 |
|
---|
[997] | 537 | int histoMaxVal;
|
---|
[1004] | 538 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[1145] | 539 | maxRenderCost = max((float)histoMaxVal, maxRenderCost);
|
---|
[991] | 540 |
|
---|
[997] | 541 |
|
---|
[728] | 542 | const float range = maxRenderCost - minRenderCost;
|
---|
[735] | 543 | const float stepSize = range / (float)intervals;
|
---|
[728] | 544 |
|
---|
[735] | 545 | float currentRenderCost = minRenderCost;//(int)ceil(minRenderCost);
|
---|
| 546 |
|
---|
| 547 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 548 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
[736] | 549 | //const float totalVol = mViewCellsTree->GetRoot()->GetVolume();
|
---|
[735] | 550 |
|
---|
[736] | 551 | int j = 0;
|
---|
[735] | 552 | int i = 0;
|
---|
| 553 |
|
---|
[734] | 554 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 555 |
|
---|
[744] | 556 | // count for integral
|
---|
| 557 | float volSum = 0;
|
---|
| 558 | int smallerCostSum = 0;
|
---|
[735] | 559 |
|
---|
[734] | 560 | // note can skip computations for view cells already evaluated and delete them from vector ...
|
---|
| 561 | while (1)
|
---|
| 562 | {
|
---|
[744] | 563 | // count for histogram value
|
---|
| 564 | float volDif = 0;
|
---|
| 565 | int smallerCostDif = 0;
|
---|
[736] | 566 |
|
---|
[734] | 567 | while ((i < (int)viewCells.size()) && (viewCells[i]->GetRenderCost() < currentRenderCost))
|
---|
| 568 | {
|
---|
[744] | 569 | volSum += viewCells[i]->GetVolume();
|
---|
| 570 | volDif += viewCells[i]->GetVolume();
|
---|
| 571 |
|
---|
[734] | 572 | ++ i;
|
---|
[744] | 573 | ++ smallerCostSum;
|
---|
| 574 | ++ smallerCostDif;
|
---|
[734] | 575 | }
|
---|
[736] | 576 |
|
---|
[744] | 577 | if ((i >= (int)viewCells.size()) || (currentRenderCost >= maxRenderCost))
|
---|
[735] | 578 | break;
|
---|
[736] | 579 |
|
---|
[744] | 580 | const float rcRatio = currentRenderCost / maxRenderCost;
|
---|
| 581 | const float volRatioSum = volSum / totalVol;
|
---|
| 582 | const float volRatioDif = volDif / totalVol;
|
---|
[735] | 583 |
|
---|
[991] | 584 | outstream << "#Pass\n" << j ++ << endl;
|
---|
[736] | 585 | outstream << "#RenderCostRatio\n" << rcRatio << endl;
|
---|
| 586 | outstream << "#WeightedCost\n" << currentRenderCost / totalVol << endl;
|
---|
[744] | 587 | outstream << "#ViewCellsDif\n" << smallerCostDif << endl;
|
---|
| 588 | outstream << "#ViewCellsSum\n" << smallerCostSum << endl;
|
---|
| 589 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 590 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[735] | 591 |
|
---|
| 592 | // increase current render cost
|
---|
[734] | 593 | currentRenderCost += stepSize;
|
---|
| 594 | }
|
---|
[735] | 595 |
|
---|
[734] | 596 | outstream.close();
|
---|
| 597 | }
|
---|
| 598 |
|
---|
[735] | 599 |
|
---|
[979] | 600 |
|
---|
| 601 | ViewCellsManager *ViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 602 | ObjectContainer *objects,
|
---|
| 603 | const bool finalizeViewCells,
|
---|
| 604 | BoundingBoxConverter *bconverter)
|
---|
| 605 |
|
---|
| 606 | {
|
---|
| 607 | ViewCellsParser parser;
|
---|
| 608 | ViewCellsManager *vm = NULL;
|
---|
| 609 |
|
---|
[1221] | 610 | if (parser.ParseViewCellsFile(filename, &vm, objects, bconverter))
|
---|
[979] | 611 | {
|
---|
[1563] | 612 | const long startTime = GetTime();
|
---|
[979] | 613 |
|
---|
| 614 | vm->ResetViewCells();
|
---|
| 615 |
|
---|
| 616 | vm->mViewCellsFinished = true;
|
---|
| 617 | vm->mMaxPvsSize = (int)objects->size();
|
---|
| 618 |
|
---|
| 619 | if (finalizeViewCells)
|
---|
| 620 | {
|
---|
[1444] | 621 | // create the meshes and compute volumes
|
---|
[979] | 622 | vm->FinalizeViewCells(true);
|
---|
[1584] | 623 | // vm->mViewCellsTree->AssignRandomColors();
|
---|
[979] | 624 | }
|
---|
| 625 |
|
---|
| 626 | Debug << (int)vm->mViewCells.size() << " view cells loaded in "
|
---|
| 627 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 628 | }
|
---|
| 629 | else
|
---|
| 630 | {
|
---|
| 631 | Debug << "Error: loading view cells failed!" << endl;
|
---|
| 632 | DEL_PTR(vm);
|
---|
| 633 | }
|
---|
| 634 |
|
---|
| 635 | return vm;
|
---|
| 636 | }
|
---|
| 637 |
|
---|
| 638 |
|
---|
| 639 | bool VspBspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 640 | const bool exportPvs,
|
---|
| 641 | const ObjectContainer &objects)
|
---|
| 642 | {
|
---|
[1002] | 643 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
[1545] | 644 | {
|
---|
[997] | 645 | return false;
|
---|
[1545] | 646 | }
|
---|
[997] | 647 |
|
---|
[979] | 648 | cout << "exporting view cells to xml ... ";
|
---|
[1264] | 649 |
|
---|
[1201] | 650 | OUT_STREAM stream(filename.c_str());
|
---|
[979] | 651 |
|
---|
| 652 | // for output we need unique ids for each view cell
|
---|
| 653 | CreateUniqueViewCellIds();
|
---|
| 654 |
|
---|
| 655 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 656 | stream << "<VisibilitySolution>" << endl;
|
---|
| 657 |
|
---|
[1262] | 658 | if (exportPvs)
|
---|
| 659 | {
|
---|
| 660 | //-- export bounding boxes
|
---|
| 661 | stream << "<BoundingBoxes>" << endl;
|
---|
[1614] | 662 | #if USE_KD_PVS
|
---|
| 663 | KdIntersectableMap::const_iterator kit, kit_end = GetPreprocessor()->mKdTree->mKdIntersectables.end();
|
---|
[979] | 664 |
|
---|
[1614] | 665 | int id = 0;
|
---|
| 666 | for (kit = GetPreprocessor()->mKdTree->mKdIntersectables.begin(); kit != kit_end; ++ kit, ++ id)
|
---|
| 667 | {
|
---|
| 668 | Intersectable *obj = (*kit).second;
|
---|
| 669 | const AxisAlignedBox3 box = obj->GetBox();
|
---|
| 670 |
|
---|
| 671 | obj->SetId(id);
|
---|
| 672 |
|
---|
| 673 | stream << "<BoundingBox" << " id=\"" << id << "\""
|
---|
| 674 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 675 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
| 676 | }
|
---|
| 677 | #else
|
---|
| 678 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
| 679 |
|
---|
[1262] | 680 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
| 681 | {
|
---|
[1563] | 682 | const AxisAlignedBox3 box = (*oit)->GetBox();
|
---|
[979] | 683 |
|
---|
[1551] | 684 | ////////////
|
---|
[979] | 685 | //-- the bounding boxes
|
---|
[1563] | 686 | stream << "<BoundingBox" << " id=\"" << (*oit)->GetId() << "\""
|
---|
[979] | 687 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 688 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
[1262] | 689 | }
|
---|
[1614] | 690 | #endif
|
---|
[1262] | 691 | stream << "</BoundingBoxes>" << endl;
|
---|
[1112] | 692 | }
|
---|
[979] | 693 |
|
---|
[1264] | 694 |
|
---|
[1551] | 695 | /////////////
|
---|
[979] | 696 | //-- export the view cells and the pvs
|
---|
| 697 |
|
---|
| 698 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 699 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
[1551] | 700 |
|
---|
[979] | 701 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 702 |
|
---|
| 703 | stream << "</ViewCells>" << endl;
|
---|
| 704 |
|
---|
| 705 |
|
---|
[1551] | 706 | //////////
|
---|
[1262] | 707 | //-- export the view space hierarchy
|
---|
[979] | 708 |
|
---|
[1262] | 709 | stream << "<ViewSpaceHierarchy type=\"bsp\""
|
---|
| 710 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
[1264] | 711 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
[1262] | 712 |
|
---|
[979] | 713 | mVspBspTree->Export(stream);
|
---|
[1286] | 714 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[979] | 715 |
|
---|
| 716 | stream << "</VisibilitySolution>" << endl;
|
---|
| 717 |
|
---|
| 718 | stream.close();
|
---|
| 719 | cout << "finished" << endl;
|
---|
| 720 |
|
---|
| 721 | return true;
|
---|
| 722 | }
|
---|
| 723 |
|
---|
| 724 |
|
---|
[735] | 725 | void ViewCellsManager::EvalViewCellHistogramForPvsSize(const string filename,
|
---|
| 726 | const int nViewCells)
|
---|
[734] | 727 | {
|
---|
| 728 | std::ofstream outstream;
|
---|
| 729 | outstream.open(filename.c_str());
|
---|
| 730 |
|
---|
| 731 | ViewCellContainer viewCells;
|
---|
[735] | 732 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[734] | 733 |
|
---|
[997] | 734 | int maxPvs, maxVal, minVal;
|
---|
[734] | 735 |
|
---|
[997] | 736 | // sort by pvs size
|
---|
[735] | 737 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerPvs);
|
---|
| 738 |
|
---|
[1142] | 739 | maxPvs = mViewCellsTree->GetPvsSize(viewCells.back());
|
---|
[997] | 740 | minVal = 0;
|
---|
| 741 |
|
---|
[991] | 742 | // hack: normalize pvs size
|
---|
[997] | 743 | int histoMaxVal;
|
---|
[1004] | 744 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
|
---|
[997] | 745 | maxVal = max(histoMaxVal, maxPvs);
|
---|
| 746 |
|
---|
[1121] | 747 | Debug << "histogram minpvssize: " << minVal << " maxpvssize: " << maxVal
|
---|
| 748 | << " real maxpvs " << maxPvs << endl;
|
---|
[752] | 749 |
|
---|
[997] | 750 | int histoIntervals;
|
---|
[1004] | 751 | Environment::GetSingleton()->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
|
---|
[997] | 752 | const int intervals = min(histoIntervals, (int)viewCells.size());
|
---|
[735] | 753 |
|
---|
[997] | 754 | const int range = maxVal - minVal;
|
---|
[735] | 755 | int stepSize = range / intervals;
|
---|
| 756 |
|
---|
[997] | 757 | // set step size to avoid endless loop
|
---|
[735] | 758 | if (!stepSize) stepSize = 1;
|
---|
[979] | 759 |
|
---|
| 760 | Debug << "stepsize: " << stepSize << endl;
|
---|
[997] | 761 |
|
---|
[735] | 762 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 763 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
| 764 |
|
---|
[997] | 765 | int currentPvs = minVal;//(int)ceil(minRenderCost);
|
---|
| 766 |
|
---|
[735] | 767 | int i = 0;
|
---|
| 768 | int j = 0;
|
---|
[744] | 769 | float volSum = 0;
|
---|
| 770 | int smallerSum = 0;
|
---|
| 771 |
|
---|
[735] | 772 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 773 |
|
---|
[997] | 774 | for (int j = 0; j < intervals; ++ j)
|
---|
[728] | 775 | {
|
---|
[744] | 776 | float volDif = 0;
|
---|
| 777 | int smallerDif = 0;
|
---|
[736] | 778 |
|
---|
[997] | 779 | while ((i < (int)viewCells.size()) &&
|
---|
[1142] | 780 | (mViewCellsTree->GetPvsSize(viewCells[i]) < currentPvs))
|
---|
[735] | 781 | {
|
---|
[744] | 782 | volDif += viewCells[i]->GetVolume();
|
---|
| 783 | volSum += viewCells[i]->GetVolume();
|
---|
[997] | 784 |
|
---|
[735] | 785 | ++ i;
|
---|
[744] | 786 | ++ smallerDif;
|
---|
| 787 | ++ smallerSum;
|
---|
[735] | 788 | }
|
---|
[736] | 789 |
|
---|
[997] | 790 | if (0 && (i < (int)viewCells.size()))
|
---|
[1142] | 791 | Debug << "new pvs size increase: " << mViewCellsTree->GetPvsSize(viewCells[i])
|
---|
[1121] | 792 | << " " << currentPvs << endl;
|
---|
[997] | 793 |
|
---|
[744] | 794 | const float volRatioDif = volDif / totalVol;
|
---|
| 795 | const float volRatioSum = volSum / totalVol;
|
---|
[728] | 796 |
|
---|
[997] | 797 | outstream << "#Pass\n" << j << endl;
|
---|
| 798 | outstream << "#Pvs\n" << currentPvs << endl;
|
---|
[744] | 799 | outstream << "#ViewCellsDif\n" << smallerDif << endl;
|
---|
| 800 | outstream << "#ViewCellsSum\n" << smallerSum << endl;
|
---|
| 801 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 802 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[997] | 803 |
|
---|
| 804 | //if ((i >= (int)viewCells.size()) || (currentPvs >= maxPvs)) break;
|
---|
[729] | 805 |
|
---|
[997] | 806 | //-- increase current pvs size to define next interval
|
---|
| 807 | currentPvs += stepSize;
|
---|
[728] | 808 | }
|
---|
[991] | 809 |
|
---|
[735] | 810 | outstream.close();
|
---|
[728] | 811 | }
|
---|
| 812 |
|
---|
[735] | 813 |
|
---|
[1002] | 814 | bool ViewCellsManager::GetExportPvs() const
|
---|
| 815 | {
|
---|
| 816 | return mExportPvs;
|
---|
| 817 | }
|
---|
| 818 |
|
---|
| 819 |
|
---|
[1259] | 820 | bool ViewCellsManager::AddSampleToPvs(Intersectable *obj,
|
---|
| 821 | const Vector3 &hitPoint,
|
---|
| 822 | ViewCell *vc,
|
---|
| 823 | const float pdf,
|
---|
| 824 | float &contribution) const
|
---|
| 825 | {
|
---|
| 826 | if (!obj) return false;
|
---|
| 827 |
|
---|
| 828 | // potentially visible objects
|
---|
| 829 | return vc->AddPvsSample(obj, pdf, contribution);
|
---|
| 830 | }
|
---|
| 831 |
|
---|
| 832 |
|
---|
[1580] | 833 | void ViewCellsManager::ResetPvs()
|
---|
| 834 | {
|
---|
| 835 | if (ViewCellsTreeConstructed())
|
---|
| 836 | {
|
---|
| 837 | mViewCellsTree->ResetPvs();
|
---|
| 838 | }
|
---|
| 839 | else
|
---|
| 840 | {
|
---|
| 841 | cout << "view cells tree not constructed" << endl;
|
---|
| 842 | }
|
---|
| 843 | }
|
---|
| 844 |
|
---|
| 845 |
|
---|
[1145] | 846 | void ViewCellsManager::EvalViewCellPartition()
|
---|
[660] | 847 | {
|
---|
| 848 | int samplesPerPass;
|
---|
| 849 | int numSamples;
|
---|
| 850 | int castSamples = 0;
|
---|
[1570] | 851 | char str[64];
|
---|
[660] | 852 |
|
---|
[1004] | 853 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
| 854 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
[660] | 855 |
|
---|
[664] | 856 | char statsPrefix[100];
|
---|
[1004] | 857 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
[663] | 858 |
|
---|
[664] | 859 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
| 860 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
| 861 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 862 |
|
---|
[666] | 863 | // should directional sampling be used?
|
---|
[1603] | 864 | bool dirSamples =
|
---|
| 865 | (mEvaluationSamplingType == SamplingStrategy::DIRECTION_BASED_DISTRIBUTION);
|
---|
[664] | 866 |
|
---|
[801] | 867 | cout << "reseting pvs ... ";
|
---|
| 868 |
|
---|
[1145] | 869 | const bool startFromZero = true;
|
---|
[801] | 870 |
|
---|
[666] | 871 | // reset pvs and start over from zero
|
---|
| 872 | if (startFromZero)
|
---|
| 873 | {
|
---|
| 874 | mViewCellsTree->ResetPvs();
|
---|
| 875 | }
|
---|
[1145] | 876 | else // start from current sampless
|
---|
[666] | 877 | {
|
---|
[1145] | 878 | // statistics before casting more samples
|
---|
[666] | 879 | cout << "compute new statistics ... ";
|
---|
[1570] | 880 | sprintf(str, "-%09d-eval.log", castSamples);
|
---|
| 881 | string fName = string(statsPrefix) + string(str);
|
---|
[666] | 882 |
|
---|
| 883 | mViewCellsTree->ExportStats(fName);
|
---|
| 884 | cout << "finished" << endl;
|
---|
| 885 | }
|
---|
[1570] | 886 |
|
---|
[744] | 887 | cout << "finished" << endl;
|
---|
[1178] | 888 | cout << "Evaluating view cell partition ... " << endl;
|
---|
[744] | 889 |
|
---|
[660] | 890 | while (castSamples < numSamples)
|
---|
| 891 | {
|
---|
[664] | 892 | VssRayContainer evaluationSamples;
|
---|
[663] | 893 |
|
---|
[722] | 894 | const int samplingType = mEvaluationSamplingType;
|
---|
[666] | 895 | /* dirSamples ?
|
---|
[664] | 896 | Preprocessor::DIRECTION_BASED_DISTRIBUTION :
|
---|
| 897 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
[666] | 898 | */
|
---|
[1004] | 899 | long startTime = GetTime();
|
---|
| 900 |
|
---|
[664] | 901 | //-- construction rays => we use uniform samples for this
|
---|
[1278] | 902 |
|
---|
[1004] | 903 | cout << "casting " << samplesPerPass << " samples ... ";
|
---|
| 904 | Debug << "casting " << samplesPerPass << " samples ... ";
|
---|
| 905 |
|
---|
[664] | 906 | CastPassSamples(samplesPerPass, samplingType, evaluationSamples);
|
---|
| 907 |
|
---|
| 908 | castSamples += samplesPerPass;
|
---|
| 909 |
|
---|
[1004] | 910 | Real timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 911 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 912 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 913 |
|
---|
[1004] | 914 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 915 | Debug << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
| 916 |
|
---|
| 917 | startTime = GetTime();
|
---|
| 918 |
|
---|
[664] | 919 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 920 |
|
---|
[1004] | 921 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 922 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
| 923 | Debug << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 924 |
|
---|
[1004] | 925 | startTime = GetTime();
|
---|
[1444] | 926 | cout << "compute new statistics ... " << endl;
|
---|
| 927 |
|
---|
[1603] | 928 | ///////////////
|
---|
[801] | 929 | //-- propagate pvs or pvs size information
|
---|
[1586] | 930 |
|
---|
[752] | 931 | ObjectPvs pvs;
|
---|
| 932 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
[664] | 933 |
|
---|
[1586] | 934 | ///////////
|
---|
[801] | 935 | //-- output stats
|
---|
[1570] | 936 | sprintf(str, "-%09d-eval.log", castSamples);
|
---|
| 937 | string fileName = string(statsPrefix) + string(str);
|
---|
[664] | 938 |
|
---|
| 939 | mViewCellsTree->ExportStats(fileName);
|
---|
| 940 |
|
---|
[1004] | 941 | timeDiff = TimeDiff(startTime, GetTime());
|
---|
| 942 | cout << "finished in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[1444] | 943 | Debug << "statistis compted in " << timeDiff * 1e-3 << " secs" << endl;
|
---|
[664] | 944 |
|
---|
| 945 | disposeRays(evaluationSamples, NULL);
|
---|
[660] | 946 | }
|
---|
[728] | 947 |
|
---|
[997] | 948 |
|
---|
[1570] | 949 | ////////////
|
---|
[997] | 950 | //-- histogram
|
---|
| 951 |
|
---|
[735] | 952 | bool useHisto;
|
---|
[997] | 953 | int histoStepSize;
|
---|
[693] | 954 |
|
---|
[1004] | 955 | Environment::GetSingleton()->GetBoolValue("ViewCells.Evaluation.histogram", useHisto);
|
---|
| 956 | Environment::GetSingleton()->GetIntValue("ViewCells.Evaluation.histoStepSize", histoStepSize);
|
---|
[728] | 957 |
|
---|
[744] | 958 | const int numLeaves = mViewCellsTree->GetNumInitialViewCells(mViewCellsTree->GetRoot());
|
---|
[736] | 959 |
|
---|
| 960 |
|
---|
[735] | 961 | if (useHisto)
|
---|
[734] | 962 | {
|
---|
[735] | 963 | // evaluate view cells in a histogram
|
---|
| 964 | char s[64];
|
---|
| 965 |
|
---|
[997] | 966 | for (int pass = histoStepSize; pass <= numLeaves; pass += histoStepSize)
|
---|
[744] | 967 | {
|
---|
[997] | 968 | string filename;
|
---|
[744] | 969 |
|
---|
[997] | 970 | cout << "computing histogram for " << pass << " view cells" << endl;
|
---|
| 971 | #if 0
|
---|
[744] | 972 | //-- evaluate histogram for render cost
|
---|
| 973 | sprintf(s, "-%09d-histo.log", pass);
|
---|
[997] | 974 | filename = string(statsPrefix) + string(s);
|
---|
[744] | 975 |
|
---|
| 976 | EvalViewCellHistogram(filename, pass);
|
---|
| 977 |
|
---|
[997] | 978 | #endif
|
---|
[744] | 979 | //////////////////////////////////////////
|
---|
[752] | 980 | //-- evaluate histogram for pvs size
|
---|
[744] | 981 |
|
---|
| 982 | cout << "computing pvs histogram for " << pass << " view cells" << endl;
|
---|
| 983 |
|
---|
| 984 | sprintf(s, "-%09d-histo-pvs.log", pass);
|
---|
| 985 | filename = string(statsPrefix) + string(s);
|
---|
| 986 |
|
---|
| 987 | EvalViewCellHistogramForPvsSize(filename, pass);
|
---|
| 988 | }
|
---|
[734] | 989 | }
|
---|
[660] | 990 | }
|
---|
| 991 |
|
---|
[704] | 992 |
|
---|
| 993 | inline float EvalMergeCost(ViewCell *root, ViewCell *candidate)
|
---|
[703] | 994 | {
|
---|
[704] | 995 | return root->GetPvs().GetPvsHomogenity(candidate->GetPvs());
|
---|
| 996 | }
|
---|
[660] | 997 |
|
---|
[703] | 998 |
|
---|
[1145] | 999 | /// Returns index of the best view cells of the neighborhood
|
---|
[704] | 1000 | int GetBestViewCellIdx(ViewCell *root, const ViewCellContainer &neighborhood)
|
---|
| 1001 | {
|
---|
[705] | 1002 | int bestViewCellIdx = 0;
|
---|
[703] | 1003 |
|
---|
[704] | 1004 | float mergeCost = Limits::Infinity;
|
---|
| 1005 | int i = 0;
|
---|
[703] | 1006 |
|
---|
[734] | 1007 | ViewCellContainer::const_iterator vit, vit_end = neighborhood.end();
|
---|
[703] | 1008 |
|
---|
[734] | 1009 | for (vit = neighborhood.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
[703] | 1010 | {
|
---|
[734] | 1011 | const float mc = EvalMergeCost(root, *vit);
|
---|
[705] | 1012 |
|
---|
| 1013 | if (mc < mergeCost)
|
---|
[704] | 1014 | {
|
---|
| 1015 | mergeCost = mc;
|
---|
| 1016 | bestViewCellIdx = i;
|
---|
[703] | 1017 | }
|
---|
[704] | 1018 | }
|
---|
[703] | 1019 |
|
---|
[704] | 1020 | return bestViewCellIdx;
|
---|
| 1021 | }
|
---|
[703] | 1022 |
|
---|
| 1023 |
|
---|
[728] | 1024 | void ViewCellsManager::SetMaxFilterSize(const int size)
|
---|
| 1025 | {
|
---|
| 1026 | mMaxFilterSize = size;
|
---|
| 1027 | }
|
---|
| 1028 |
|
---|
| 1029 |
|
---|
| 1030 | float ViewCellsManager::EvalRenderCost(Intersectable *obj) const
|
---|
| 1031 | {
|
---|
| 1032 | switch (mRenderCostEvaluationType)
|
---|
| 1033 | {
|
---|
| 1034 | case PER_OBJECT:
|
---|
[752] | 1035 | //cout << "perobject" << endl;
|
---|
| 1036 | return 1.0f;
|
---|
[728] | 1037 |
|
---|
| 1038 | case PER_TRIANGLE:
|
---|
[1145] | 1039 | {//cout << "pertriangle" << endl;
|
---|
[728] | 1040 | // HACK
|
---|
| 1041 | MeshInstance *mi = dynamic_cast<MeshInstance *>(obj);
|
---|
| 1042 |
|
---|
| 1043 | // HACK: assume meshes are triangles
|
---|
| 1044 | if (mi->GetMesh())
|
---|
| 1045 | {
|
---|
[1145] | 1046 | return (float)mi->GetMesh()->mFaces.size();
|
---|
[728] | 1047 | }
|
---|
| 1048 | }
|
---|
| 1049 | default:
|
---|
[752] | 1050 | cout << "default" << endl;
|
---|
| 1051 | return 1.0f;
|
---|
[728] | 1052 | }
|
---|
| 1053 |
|
---|
| 1054 | // should not come here
|
---|
[752] | 1055 | return 0.0f;
|
---|
[728] | 1056 | }
|
---|
| 1057 |
|
---|
| 1058 |
|
---|
[704] | 1059 | ViewCell *ViewCellsManager::ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
| 1060 | const ViewCellContainer &viewCells)
|
---|
| 1061 | {
|
---|
| 1062 | ViewCell *root = currentViewCell;
|
---|
| 1063 | ViewCellContainer neighborhood = viewCells;
|
---|
[703] | 1064 |
|
---|
[704] | 1065 | ViewCellContainer::const_iterator it, it_end = neighborhood.end();
|
---|
[703] | 1066 |
|
---|
[704] | 1067 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
[1545] | 1068 |
|
---|
| 1069 | /////////////////
|
---|
[704] | 1070 | //-- use priority queue to merge leaf pairs
|
---|
[1545] | 1071 |
|
---|
[704] | 1072 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[703] | 1073 | {
|
---|
[704] | 1074 | const int bestViewCellIdx = GetBestViewCellIdx(root, neighborhood);
|
---|
[703] | 1075 |
|
---|
[704] | 1076 | ViewCell *bestViewCell = neighborhood[bestViewCellIdx];
|
---|
[706] | 1077 |
|
---|
[704] | 1078 | // remove from vector
|
---|
| 1079 | swap(neighborhood[bestViewCellIdx], neighborhood.back());
|
---|
| 1080 | neighborhood.pop_back();
|
---|
[705] | 1081 |
|
---|
[704] | 1082 | if (!bestViewCell || !root)
|
---|
[1545] | 1083 | cout << "warning!!" << endl;
|
---|
[705] | 1084 |
|
---|
[704] | 1085 | // create new root of the hierarchy
|
---|
| 1086 | root = MergeViewCells(root, bestViewCell);
|
---|
[703] | 1087 | }
|
---|
| 1088 |
|
---|
[704] | 1089 | return root;
|
---|
[703] | 1090 | }
|
---|
| 1091 |
|
---|
[704] | 1092 |
|
---|
[713] | 1093 | struct SortableViewCellEntry {
|
---|
| 1094 |
|
---|
[1174] | 1095 | SortableViewCellEntry() {}
|
---|
| 1096 | SortableViewCellEntry(const float v, ViewCell *cell):mValue(v), mViewCell(cell) {}
|
---|
[713] | 1097 |
|
---|
[1174] | 1098 | float mValue;
|
---|
| 1099 | ViewCell *mViewCell;
|
---|
| 1100 |
|
---|
| 1101 | friend bool operator<(const SortableViewCellEntry &a, const SortableViewCellEntry &b) {
|
---|
| 1102 | return a.mValue < b.mValue;
|
---|
| 1103 | }
|
---|
[713] | 1104 | };
|
---|
| 1105 |
|
---|
[1174] | 1106 |
|
---|
| 1107 | ViewCell * ViewCellsManager::ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 1108 | const ViewCellContainer &viewCells)
|
---|
[713] | 1109 | {
|
---|
| 1110 |
|
---|
| 1111 | vector<SortableViewCellEntry> neighborhood(viewCells.size());
|
---|
| 1112 | int i, j;
|
---|
| 1113 | for (i = 0, j = 0; i < viewCells.size(); i++) {
|
---|
| 1114 | if (viewCells[i] != currentViewCell)
|
---|
| 1115 | neighborhood[j++] = SortableViewCellEntry(
|
---|
| 1116 | EvalMergeCost(currentViewCell, viewCells[i]),
|
---|
| 1117 | viewCells[i]);
|
---|
| 1118 | }
|
---|
| 1119 | neighborhood.resize(j);
|
---|
| 1120 |
|
---|
| 1121 | sort(neighborhood.begin(), neighborhood.end());
|
---|
| 1122 |
|
---|
| 1123 | ViewCell *root = currentViewCell;
|
---|
| 1124 |
|
---|
| 1125 | vector<SortableViewCellEntry>::const_iterator it, it_end = neighborhood.end();
|
---|
| 1126 |
|
---|
| 1127 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 1128 | //-- use priority queue to merge leaf pairs
|
---|
| 1129 |
|
---|
| 1130 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
| 1131 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[728] | 1132 | {
|
---|
[713] | 1133 | ViewCell *bestViewCell = neighborhood[nMergedViewCells].mViewCell;
|
---|
| 1134 | //cout <<nMergedViewCells<<":"<<"homogenity=" <<neighborhood[nMergedViewCells].mValue<<endl;
|
---|
| 1135 | // create new root of the hierarchy
|
---|
| 1136 | root = MergeViewCells(root, bestViewCell);
|
---|
| 1137 | // set negative cost so that this view cell gets deleted
|
---|
| 1138 | root->SetMergeCost(-1.0f);
|
---|
[728] | 1139 | }
|
---|
[713] | 1140 |
|
---|
| 1141 | return root;
|
---|
| 1142 | }
|
---|
| 1143 |
|
---|
| 1144 | void
|
---|
| 1145 | ViewCellsManager::DeleteLocalMergeTree(ViewCell *vc
|
---|
| 1146 | ) const
|
---|
| 1147 | {
|
---|
[1586] | 1148 | if (!vc->IsLeaf() && vc->GetMergeCost() < 0.0f)
|
---|
| 1149 | {
|
---|
| 1150 | ViewCellInterior *vci = (ViewCellInterior *) vc;
|
---|
| 1151 | ViewCellContainer::const_iterator it, it_end = vci->mChildren.end();
|
---|
| 1152 |
|
---|
| 1153 | for (it = vci->mChildren.begin(); it != it_end; ++ it)
|
---|
| 1154 | DeleteLocalMergeTree(*it);
|
---|
| 1155 |
|
---|
| 1156 | vci->mChildren.clear();
|
---|
| 1157 |
|
---|
| 1158 | delete vci;
|
---|
[713] | 1159 | }
|
---|
| 1160 | }
|
---|
| 1161 |
|
---|
[1021] | 1162 |
|
---|
[564] | 1163 | bool ViewCellsManager::CheckValidity(ViewCell *vc,
|
---|
| 1164 | int minPvsSize,
|
---|
[562] | 1165 | int maxPvsSize) const
|
---|
[547] | 1166 | {
|
---|
[569] | 1167 |
|
---|
[1168] | 1168 | if ((vc->GetPvs().CountObjectsInPvs() > maxPvsSize) ||
|
---|
| 1169 | (vc->GetPvs().CountObjectsInPvs() < minPvsSize))
|
---|
[564] | 1170 | {
|
---|
[710] | 1171 | return false;
|
---|
[561] | 1172 | }
|
---|
[570] | 1173 |
|
---|
[710] | 1174 | return true;
|
---|
[547] | 1175 | }
|
---|
| 1176 |
|
---|
| 1177 |
|
---|
[710] | 1178 | int ViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1179 | ViewCellContainer &viewCells) const
|
---|
| 1180 | {
|
---|
| 1181 | return 0;
|
---|
| 1182 | };
|
---|
| 1183 |
|
---|
[1021] | 1184 |
|
---|
[697] | 1185 | AxisAlignedBox3 ViewCellsManager::GetFilterBBox(const Vector3 &viewPoint,
|
---|
| 1186 | const float width) const
|
---|
| 1187 | {
|
---|
[746] | 1188 | float w = Magnitude(mViewSpaceBox.Size())*width;
|
---|
| 1189 | Vector3 min = viewPoint - w * 0.5f;
|
---|
| 1190 | Vector3 max = viewPoint + w * 0.5f;
|
---|
| 1191 |
|
---|
| 1192 | return AxisAlignedBox3(min, max);
|
---|
[697] | 1193 | }
|
---|
| 1194 |
|
---|
| 1195 |
|
---|
[904] | 1196 | void ViewCellsManager::GetPrVS(const Vector3 &viewPoint,
|
---|
| 1197 | PrVs &prvs,
|
---|
| 1198 | const float filterWidth)
|
---|
[697] | 1199 | {
|
---|
[1594] | 1200 | ViewCell *currentViewCell = GetViewCell(viewPoint);
|
---|
[1112] | 1201 |
|
---|
[1594] | 1202 | if (mMaxFilterSize < 1) {
|
---|
| 1203 | prvs.mViewCell = currentViewCell;
|
---|
| 1204 | return;
|
---|
| 1205 | }
|
---|
| 1206 |
|
---|
| 1207 | const AxisAlignedBox3 box = GetFilterBBox(viewPoint, filterWidth);
|
---|
| 1208 |
|
---|
| 1209 | if (currentViewCell)
|
---|
[1545] | 1210 | {
|
---|
[1594] | 1211 | ViewCellContainer viewCells;
|
---|
| 1212 | ComputeBoxIntersections(box, viewCells);
|
---|
| 1213 |
|
---|
| 1214 | ViewCell *root = ConstructLocalMergeTree2(currentViewCell, viewCells);
|
---|
| 1215 | prvs.mViewCell = root;
|
---|
| 1216 |
|
---|
[1545] | 1217 | }
|
---|
[1594] | 1218 | else
|
---|
[1545] | 1219 | {
|
---|
[1594] | 1220 | prvs.mViewCell = NULL;
|
---|
| 1221 | //prvs.mPvs = root->GetPvs();
|
---|
[1545] | 1222 | }
|
---|
[697] | 1223 | }
|
---|
| 1224 |
|
---|
| 1225 |
|
---|
[581] | 1226 | bool ViewCellsManager::ViewCellsTreeConstructed() const
|
---|
| 1227 | {
|
---|
[1002] | 1228 | return (mViewCellsTree && mViewCellsTree->GetRoot());
|
---|
[581] | 1229 | }
|
---|
| 1230 |
|
---|
| 1231 |
|
---|
[564] | 1232 | void ViewCellsManager::SetValidity(ViewCell *vc,
|
---|
| 1233 | int minPvs,
|
---|
[562] | 1234 | int maxPvs) const
|
---|
| 1235 | {
|
---|
| 1236 | vc->SetValid(CheckValidity(vc, minPvs, maxPvs));
|
---|
| 1237 | }
|
---|
| 1238 |
|
---|
[577] | 1239 |
|
---|
[569] | 1240 | void
|
---|
| 1241 | ViewCellsManager::SetValidity(
|
---|
[570] | 1242 | int minPvsSize,
|
---|
[569] | 1243 | int maxPvsSize) const
|
---|
| 1244 | {
|
---|
[991] | 1245 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[570] | 1246 |
|
---|
[991] | 1247 |
|
---|
| 1248 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1249 | {
|
---|
| 1250 | SetValidity(*it, minPvsSize, maxPvsSize);
|
---|
| 1251 | }
|
---|
[569] | 1252 | }
|
---|
[562] | 1253 |
|
---|
[569] | 1254 | void
|
---|
| 1255 | ViewCellsManager::SetValidityPercentage(
|
---|
| 1256 | const float minValid,
|
---|
| 1257 | const float maxValid
|
---|
| 1258 | )
|
---|
| 1259 | {
|
---|
[997] | 1260 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
[570] | 1261 |
|
---|
[1151] | 1262 | int start = (int)(mViewCells.size() * minValid);
|
---|
| 1263 | int end = (int)(mViewCells.size() * maxValid);
|
---|
[570] | 1264 |
|
---|
[1151] | 1265 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
[997] | 1266 | {
|
---|
| 1267 | mViewCells[i]->SetValid(i >= start && i <= end);
|
---|
| 1268 | }
|
---|
[569] | 1269 | }
|
---|
| 1270 |
|
---|
[1148] | 1271 |
|
---|
[991] | 1272 | int ViewCellsManager::CountValidViewcells() const
|
---|
[569] | 1273 | {
|
---|
[991] | 1274 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1275 | int valid = 0;
|
---|
| 1276 |
|
---|
| 1277 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1278 | {
|
---|
| 1279 | if ((*it)->GetValid())
|
---|
| 1280 | ++ valid;
|
---|
| 1281 | }
|
---|
| 1282 |
|
---|
| 1283 | return valid;
|
---|
[569] | 1284 | }
|
---|
| 1285 |
|
---|
[577] | 1286 |
|
---|
[1545] | 1287 | bool ViewCellsManager::LoadViewCellsGeometry(const string filename,
|
---|
| 1288 | const bool extrudeBaseTriangles)
|
---|
[440] | 1289 | {
|
---|
[1545] | 1290 | /// we use predefined view cells from now on
|
---|
| 1291 | mUsePredefinedViewCells = true;
|
---|
[440] | 1292 | X3dParser parser;
|
---|
[1545] | 1293 |
|
---|
| 1294 | if (extrudeBaseTriangles)
|
---|
| 1295 | {
|
---|
| 1296 | Environment::GetSingleton()->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
|
---|
[1563] | 1297 | const bool success = parser.ParseFile(filename, *this);
|
---|
| 1298 |
|
---|
| 1299 | if (!success)
|
---|
| 1300 | return false;
|
---|
[1545] | 1301 | }
|
---|
| 1302 | else
|
---|
| 1303 | {
|
---|
| 1304 | // hack: use standard mesh loading
|
---|
| 1305 | // create temporary scene graph for loading the view cells geometry
|
---|
[1563] | 1306 | // note: delete the meshes as they are created two times for transformed mesh instances.
|
---|
[1545] | 1307 | SceneGraphNode *root = new SceneGraphNode();
|
---|
[1563] | 1308 | const bool success = parser.ParseFile(filename, root, true);
|
---|
| 1309 |
|
---|
| 1310 | if (!success)
|
---|
[1545] | 1311 | {
|
---|
[1563] | 1312 | DEL_PTR(root);
|
---|
| 1313 | return false;
|
---|
| 1314 | }
|
---|
| 1315 |
|
---|
| 1316 | ObjectContainer::const_iterator oit, oit_end = root->mGeometry.end();
|
---|
| 1317 |
|
---|
| 1318 | for (oit = root->mGeometry.begin(); oit != oit_end; ++ oit)
|
---|
| 1319 | {
|
---|
| 1320 | Mesh *mesh;
|
---|
| 1321 | if ((*oit)->Type() == Intersectable::TRANSFORMED_MESH_INSTANCE)
|
---|
[1545] | 1322 | {
|
---|
[1563] | 1323 | TransformedMeshInstance *mit = dynamic_cast<TransformedMeshInstance *>(*oit);
|
---|
| 1324 | mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
| 1325 | mit->GetTransformedMesh(*mesh);
|
---|
[1545] | 1326 | }
|
---|
[1563] | 1327 | else if ((*oit)->Type() == Intersectable::MESH_INSTANCE)
|
---|
| 1328 | {
|
---|
| 1329 | MeshInstance *mit = dynamic_cast<MeshInstance *>(*oit);
|
---|
| 1330 | mesh = mit->GetMesh();
|
---|
| 1331 | }
|
---|
| 1332 | mesh->ComputeBoundingBox();
|
---|
| 1333 | mViewCells.push_back(GenerateViewCell(mesh));
|
---|
[1545] | 1334 | }
|
---|
[1563] | 1335 |
|
---|
[1545] | 1336 | DEL_PTR(root);
|
---|
| 1337 | }
|
---|
[503] | 1338 |
|
---|
[1563] | 1339 | // set view space box to bounding box of the view cells
|
---|
| 1340 | AxisAlignedBox3 bbox;
|
---|
| 1341 | bbox.Initialize();
|
---|
| 1342 | ViewCellContainer::iterator it = mViewCells.begin(), it_end = mViewCells.end();
|
---|
| 1343 |
|
---|
| 1344 | for (; it != it_end; ++ it)
|
---|
[1545] | 1345 | {
|
---|
[1563] | 1346 | bbox.Include((*it)->GetMesh()->mBox);
|
---|
[1545] | 1347 | }
|
---|
[503] | 1348 |
|
---|
[1563] | 1349 | SetViewSpaceBox(bbox);
|
---|
| 1350 | cout << "view space box: " << bbox << endl;
|
---|
| 1351 | cout << "generated " << (int)mViewCells.size() << " view cells using the geometry " << filename << endl;
|
---|
| 1352 |
|
---|
| 1353 | return true;
|
---|
[440] | 1354 | }
|
---|
| 1355 |
|
---|
[485] | 1356 |
|
---|
[487] | 1357 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 1358 | {
|
---|
[542] | 1359 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[487] | 1360 | return true;
|
---|
| 1361 | }
|
---|
| 1362 |
|
---|
| 1363 |
|
---|
[557] | 1364 | float ViewCellsManager::GetViewSpaceVolume()
|
---|
| 1365 | {
|
---|
[610] | 1366 | return mViewSpaceBox.GetVolume() * (2.0f * sqr((float)M_PI));
|
---|
[557] | 1367 | }
|
---|
| 1368 |
|
---|
| 1369 |
|
---|
[490] | 1370 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 1371 | {
|
---|
[1444] | 1372 | if (!ViewCellsConstructed())
|
---|
| 1373 | {
|
---|
| 1374 | return mViewSpaceBox.IsInside(viewPoint);
|
---|
| 1375 | }
|
---|
| 1376 | else
|
---|
| 1377 | {
|
---|
| 1378 | if (!mViewSpaceBox.IsInside(viewPoint))
|
---|
| 1379 | return false;
|
---|
[837] | 1380 |
|
---|
[1444] | 1381 | ViewCell *viewcell = GetViewCell(viewPoint);
|
---|
| 1382 |
|
---|
| 1383 | if (!viewcell || !viewcell->GetValid())
|
---|
| 1384 | return false;
|
---|
| 1385 | }
|
---|
| 1386 |
|
---|
| 1387 | return true;
|
---|
[490] | 1388 | }
|
---|
| 1389 |
|
---|
[501] | 1390 |
|
---|
[1444] | 1391 | float ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays,
|
---|
| 1392 | const bool addRays,
|
---|
| 1393 | const bool storeViewCells)
|
---|
[440] | 1394 | {
|
---|
[1444] | 1395 | // view cells not yet constructed
|
---|
| 1396 | if (!ViewCellsConstructed())
|
---|
| 1397 | return 0.0f;
|
---|
| 1398 |
|
---|
| 1399 | float sum = 0.0f;
|
---|
| 1400 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
| 1401 |
|
---|
| 1402 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 1403 | {
|
---|
| 1404 | sum += ComputeSampleContribution(*(*it), addRays, storeViewCells);
|
---|
| 1405 | }
|
---|
[503] | 1406 |
|
---|
[1444] | 1407 | return sum;
|
---|
[440] | 1408 | }
|
---|
| 1409 |
|
---|
[485] | 1410 |
|
---|
[479] | 1411 | void ViewCellsManager::EvaluateViewCellsStats()
|
---|
| 1412 | {
|
---|
[660] | 1413 | mCurrentViewCellsStats.Reset();
|
---|
[479] | 1414 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1415 |
|
---|
| 1416 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[487] | 1417 | {
|
---|
[660] | 1418 | mViewCellsTree->UpdateViewCellsStats(*it, mCurrentViewCellsStats);
|
---|
[487] | 1419 | }
|
---|
[479] | 1420 | }
|
---|
| 1421 |
|
---|
[485] | 1422 |
|
---|
[580] | 1423 | void ViewCellsManager::EvaluateRenderStatistics(float &totalRenderCost,
|
---|
[579] | 1424 | float &expectedRenderCost,
|
---|
[580] | 1425 | float &deviation,
|
---|
| 1426 | float &variance,
|
---|
| 1427 | int &totalPvs,
|
---|
| 1428 | float &avgRenderCost)
|
---|
[579] | 1429 | {
|
---|
[1444] | 1430 | ////////////
|
---|
| 1431 | //-- compute expected value
|
---|
[579] | 1432 |
|
---|
| 1433 | totalRenderCost = 0;
|
---|
[580] | 1434 | totalPvs = 0;
|
---|
[579] | 1435 |
|
---|
[1444] | 1436 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1437 |
|
---|
[579] | 1438 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1439 | {
|
---|
| 1440 | ViewCell *vc = *it;
|
---|
[1168] | 1441 | totalRenderCost += vc->GetPvs().CountObjectsInPvs() * vc->GetVolume();
|
---|
| 1442 | totalPvs += (int)vc->GetPvs().CountObjectsInPvs();
|
---|
[579] | 1443 | }
|
---|
| 1444 |
|
---|
[580] | 1445 | // normalize with view space box
|
---|
| 1446 | totalRenderCost /= mViewSpaceBox.GetVolume();
|
---|
[579] | 1447 | expectedRenderCost = totalRenderCost / (float)mViewCells.size();
|
---|
[580] | 1448 | avgRenderCost = totalPvs / (float)mViewCells.size();
|
---|
[579] | 1449 |
|
---|
| 1450 |
|
---|
[1444] | 1451 | ///////////
|
---|
[580] | 1452 | //-- compute standard defiation
|
---|
[1444] | 1453 |
|
---|
[579] | 1454 | variance = 0;
|
---|
[580] | 1455 | deviation = 0;
|
---|
[579] | 1456 |
|
---|
| 1457 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1458 | {
|
---|
| 1459 | ViewCell *vc = *it;
|
---|
| 1460 |
|
---|
[1168] | 1461 | float renderCost = vc->GetPvs().CountObjectsInPvs() * vc->GetVolume();
|
---|
[580] | 1462 | float dev;
|
---|
[579] | 1463 |
|
---|
[580] | 1464 | if (1)
|
---|
[1168] | 1465 | dev = fabs(avgRenderCost - (float)vc->GetPvs().CountObjectsInPvs());
|
---|
[580] | 1466 | else
|
---|
| 1467 | dev = fabs(expectedRenderCost - renderCost);
|
---|
[579] | 1468 |
|
---|
[580] | 1469 | deviation += dev;
|
---|
| 1470 | variance += dev * dev;
|
---|
[579] | 1471 | }
|
---|
[580] | 1472 |
|
---|
[579] | 1473 | variance /= (float)mViewCells.size();
|
---|
[580] | 1474 | deviation /= (float)mViewCells.size();
|
---|
[579] | 1475 | }
|
---|
| 1476 |
|
---|
| 1477 |
|
---|
[478] | 1478 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
| 1479 | {
|
---|
| 1480 | return viewCell->GetArea();
|
---|
| 1481 | }
|
---|
| 1482 |
|
---|
| 1483 |
|
---|
| 1484 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
|
---|
| 1485 | {
|
---|
| 1486 | return viewCell->GetVolume();
|
---|
| 1487 | }
|
---|
| 1488 |
|
---|
[485] | 1489 |
|
---|
[503] | 1490 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
|
---|
[440] | 1491 | const float height) const
|
---|
| 1492 | {
|
---|
| 1493 | // one mesh per view cell
|
---|
[1001] | 1494 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[503] | 1495 |
|
---|
[1545] | 1496 | ////////////
|
---|
[440] | 1497 | //-- construct prism
|
---|
| 1498 |
|
---|
[503] | 1499 | // bottom
|
---|
[440] | 1500 | mesh->mFaces.push_back(new Face(2,1,0));
|
---|
| 1501 | // top
|
---|
| 1502 | mesh->mFaces.push_back(new Face(3,4,5));
|
---|
| 1503 | // sides
|
---|
| 1504 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
|
---|
| 1505 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
|
---|
| 1506 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
|
---|
| 1507 |
|
---|
[1545] | 1508 |
|
---|
| 1509 | /////////////
|
---|
| 1510 | //-- extrude new vertices for top of prism
|
---|
| 1511 |
|
---|
[1586] | 1512 | const Vector3 triNorm = baseTri.GetNormal();
|
---|
[503] | 1513 | Triangle3 topTri;
|
---|
[440] | 1514 |
|
---|
| 1515 | // add base vertices and calculate top vertices
|
---|
| 1516 | for (int i = 0; i < 3; ++ i)
|
---|
[1545] | 1517 | {
|
---|
[440] | 1518 | mesh->mVertices.push_back(baseTri.mVertices[i]);
|
---|
[1545] | 1519 | }
|
---|
[503] | 1520 |
|
---|
| 1521 | // add top vertices
|
---|
[440] | 1522 | for (int i = 0; i < 3; ++ i)
|
---|
[1545] | 1523 | {
|
---|
[440] | 1524 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
|
---|
[1545] | 1525 | }
|
---|
[503] | 1526 |
|
---|
[1545] | 1527 | // do we have to preprocess this mesh (we don't want to trace view cells!)?
|
---|
| 1528 | mesh->ComputeBoundingBox();
|
---|
| 1529 |
|
---|
[440] | 1530 | return GenerateViewCell(mesh);
|
---|
| 1531 | }
|
---|
| 1532 |
|
---|
[485] | 1533 |
|
---|
[551] | 1534 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
|
---|
| 1535 | {
|
---|
| 1536 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[693] | 1537 |
|
---|
| 1538 | // volume and area of the view cells are recomputed and a view cell mesh is created
|
---|
[551] | 1539 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1540 | {
|
---|
| 1541 | Finalize(*it, createMesh);
|
---|
| 1542 | }
|
---|
[555] | 1543 |
|
---|
[1584] | 1544 | mViewCellsTree->AssignRandomColors();
|
---|
| 1545 |
|
---|
[555] | 1546 | mTotalAreaValid = false;
|
---|
[551] | 1547 | }
|
---|
| 1548 |
|
---|
| 1549 |
|
---|
| 1550 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
| 1551 | {
|
---|
| 1552 | // implemented in subclasses
|
---|
| 1553 | }
|
---|
| 1554 |
|
---|
[1001] | 1555 |
|
---|
[1168] | 1556 | /** fast way of merging 2 view cells.
|
---|
| 1557 | */
|
---|
[582] | 1558 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCell *left, ViewCell *right) const
|
---|
[440] | 1559 | {
|
---|
[580] | 1560 | // generate parent view cell
|
---|
[752] | 1561 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[710] | 1562 |
|
---|
[752] | 1563 | vc->GetPvs().Clear();
|
---|
[610] | 1564 | vc->GetPvs() = left->GetPvs();
|
---|
[752] | 1565 |
|
---|
| 1566 | // merge pvs of right cell
|
---|
[610] | 1567 | vc->GetPvs().Merge(right->GetPvs());
|
---|
[440] | 1568 |
|
---|
[710] | 1569 | // set only links to child (not from child to parent, maybe not wished!!)
|
---|
| 1570 | vc->mChildren.push_back(left);
|
---|
| 1571 | vc->mChildren.push_back(right);
|
---|
| 1572 |
|
---|
[752] | 1573 | // update pvs size
|
---|
[1168] | 1574 | UpdateScalarPvsSize(vc, vc->GetPvs().CountObjectsInPvs(), vc->GetPvs().GetSize());
|
---|
[752] | 1575 |
|
---|
[440] | 1576 | return vc;
|
---|
| 1577 | }
|
---|
| 1578 |
|
---|
[485] | 1579 |
|
---|
[582] | 1580 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCellContainer &children) const
|
---|
| 1581 | {
|
---|
[752] | 1582 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[582] | 1583 |
|
---|
| 1584 | ViewCellContainer::const_iterator it, it_end = children.end();
|
---|
| 1585 |
|
---|
| 1586 | for (it = children.begin(); it != it_end; ++ it)
|
---|
| 1587 | {
|
---|
| 1588 | // merge pvs
|
---|
[610] | 1589 | vc->GetPvs().Merge((*it)->GetPvs());
|
---|
[710] | 1590 | vc->mChildren.push_back(*it);
|
---|
[582] | 1591 | }
|
---|
| 1592 |
|
---|
| 1593 | return vc;
|
---|
| 1594 | }
|
---|
| 1595 |
|
---|
| 1596 |
|
---|
[480] | 1597 | void ViewCellsManager::SetRenderer(Renderer *renderer)
|
---|
| 1598 | {
|
---|
| 1599 | mRenderer = renderer;
|
---|
| 1600 | }
|
---|
[441] | 1601 |
|
---|
[485] | 1602 |
|
---|
[580] | 1603 | ViewCellsTree *ViewCellsManager::GetViewCellsTree()
|
---|
[440] | 1604 | {
|
---|
[580] | 1605 | return mViewCellsTree;
|
---|
[440] | 1606 | }
|
---|
| 1607 |
|
---|
| 1608 |
|
---|
| 1609 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
|
---|
| 1610 | {
|
---|
[444] | 1611 | mVisualizationSamples = visSamples;
|
---|
[440] | 1612 | }
|
---|
| 1613 |
|
---|
[485] | 1614 |
|
---|
[440] | 1615 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
|
---|
| 1616 | {
|
---|
| 1617 | mConstructionSamples = constructionSamples;
|
---|
| 1618 | }
|
---|
| 1619 |
|
---|
[485] | 1620 |
|
---|
[574] | 1621 | void ViewCellsManager::SetInitialSamples(const int initialSamples)
|
---|
| 1622 | {
|
---|
| 1623 | mInitialSamples = initialSamples;
|
---|
| 1624 | }
|
---|
| 1625 |
|
---|
| 1626 |
|
---|
[440] | 1627 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
|
---|
| 1628 | {
|
---|
| 1629 | mPostProcessSamples = postProcessSamples;
|
---|
| 1630 | }
|
---|
| 1631 |
|
---|
[485] | 1632 |
|
---|
[440] | 1633 | int ViewCellsManager::GetVisualizationSamples() const
|
---|
| 1634 | {
|
---|
| 1635 | return mVisualizationSamples;
|
---|
| 1636 | }
|
---|
| 1637 |
|
---|
[485] | 1638 |
|
---|
[440] | 1639 | int ViewCellsManager::GetConstructionSamples() const
|
---|
| 1640 | {
|
---|
| 1641 | return mConstructionSamples;
|
---|
| 1642 | }
|
---|
| 1643 |
|
---|
[485] | 1644 |
|
---|
[440] | 1645 | int ViewCellsManager::GetPostProcessSamples() const
|
---|
| 1646 | {
|
---|
| 1647 | return mPostProcessSamples;
|
---|
| 1648 | }
|
---|
| 1649 |
|
---|
[485] | 1650 |
|
---|
[719] | 1651 | void ViewCellsManager::UpdatePvs()
|
---|
| 1652 | {
|
---|
[720] | 1653 | if (mViewCellPvsIsUpdated || !ViewCellsTreeConstructed())
|
---|
[719] | 1654 | return;
|
---|
| 1655 |
|
---|
| 1656 | mViewCellPvsIsUpdated = true;
|
---|
| 1657 |
|
---|
| 1658 | ViewCellContainer leaves;
|
---|
| 1659 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 1660 |
|
---|
| 1661 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 1662 |
|
---|
| 1663 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 1664 | {
|
---|
| 1665 | mViewCellsTree->PropagatePvs(*it);
|
---|
| 1666 | }
|
---|
| 1667 | }
|
---|
| 1668 |
|
---|
| 1669 |
|
---|
[485] | 1670 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
|
---|
[467] | 1671 | {
|
---|
[1199] | 1672 | // update pvs of view cells tree if necessary
|
---|
| 1673 | UpdatePvs();
|
---|
| 1674 |
|
---|
| 1675 | ViewCellContainer::const_iterator it = mViewCells.begin();
|
---|
| 1676 |
|
---|
| 1677 | stat.viewcells = 0;
|
---|
| 1678 | stat.minPvs = 100000000;
|
---|
| 1679 | stat.maxPvs = 0;
|
---|
| 1680 | stat.avgPvs = 0.0f;
|
---|
| 1681 |
|
---|
| 1682 | for (; it != mViewCells.end(); ++ it)
|
---|
[719] | 1683 | {
|
---|
[1199] | 1684 | ViewCell *viewcell = *it;
|
---|
[1121] | 1685 |
|
---|
[1199] | 1686 | // bool mCountKdPvs = false;
|
---|
| 1687 | const int pvsSize = mViewCellsTree->GetPvsSize(viewcell);
|
---|
[1121] | 1688 |
|
---|
| 1689 |
|
---|
[1199] | 1690 | if (pvsSize < stat.minPvs)
|
---|
| 1691 | stat.minPvs = pvsSize;
|
---|
| 1692 | if (pvsSize > stat.maxPvs)
|
---|
| 1693 | stat.maxPvs = pvsSize;
|
---|
| 1694 |
|
---|
| 1695 | stat.avgPvs += pvsSize;
|
---|
| 1696 |
|
---|
| 1697 | ++ stat.viewcells;
|
---|
[719] | 1698 | }
|
---|
[1199] | 1699 |
|
---|
| 1700 | if (stat.viewcells)
|
---|
| 1701 | stat.avgPvs/=stat.viewcells;
|
---|
[467] | 1702 | }
|
---|
| 1703 |
|
---|
[485] | 1704 |
|
---|
[480] | 1705 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
|
---|
[467] | 1706 | {
|
---|
| 1707 | s<<"############# Viewcell PVS STAT ##################\n";
|
---|
| 1708 | PvsStatistics pvsStat;
|
---|
| 1709 | GetPvsStatistics(pvsStat);
|
---|
| 1710 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
|
---|
| 1711 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
|
---|
| 1712 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
|
---|
| 1713 | }
|
---|
| 1714 |
|
---|
[485] | 1715 |
|
---|
[532] | 1716 | int ViewCellsManager::CastBeam(Beam &beam)
|
---|
| 1717 | {
|
---|
| 1718 | return 0;
|
---|
| 1719 | }
|
---|
| 1720 |
|
---|
[547] | 1721 |
|
---|
[468] | 1722 | ViewCellContainer &ViewCellsManager::GetViewCells()
|
---|
| 1723 | {
|
---|
| 1724 | return mViewCells;
|
---|
| 1725 | }
|
---|
| 1726 |
|
---|
[485] | 1727 |
|
---|
[487] | 1728 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
|
---|
| 1729 | {
|
---|
[542] | 1730 | mViewSpaceBox = box;
|
---|
[1074] | 1731 |
|
---|
[1027] | 1732 | // hack: create clip plane relative to new view space box
|
---|
[660] | 1733 | CreateClipPlane();
|
---|
[1027] | 1734 | // the total area of the view space has changed
|
---|
[577] | 1735 | mTotalAreaValid = false;
|
---|
[487] | 1736 | }
|
---|
| 1737 |
|
---|
| 1738 |
|
---|
[660] | 1739 | void ViewCellsManager::CreateClipPlane()
|
---|
[591] | 1740 | {
|
---|
| 1741 | int axis = 0;
|
---|
[667] | 1742 | float pos;
|
---|
[1418] | 1743 | bool orientation;
|
---|
| 1744 | Vector3 absPos;
|
---|
[591] | 1745 |
|
---|
[1004] | 1746 | Environment::GetSingleton()->GetFloatValue("ViewCells.Visualization.clipPlanePos", pos);
|
---|
[1416] | 1747 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.clipPlaneAxis", axis);
|
---|
[591] | 1748 |
|
---|
[1418] | 1749 | if (axis < 0)
|
---|
| 1750 | {
|
---|
| 1751 | axis = -axis;
|
---|
| 1752 | orientation = false;
|
---|
| 1753 | absPos = mViewSpaceBox.Max() - mViewSpaceBox.Size() * pos;
|
---|
| 1754 | }
|
---|
| 1755 | else
|
---|
| 1756 | {
|
---|
| 1757 | orientation = true;
|
---|
| 1758 | absPos = mViewSpaceBox.Min() + mViewSpaceBox.Size() * pos;
|
---|
| 1759 | }
|
---|
| 1760 |
|
---|
[1416] | 1761 | mClipPlaneForViz = AxisAlignedPlane(axis, absPos[axis]);
|
---|
[1418] | 1762 | mClipPlaneForViz.mOrientation = orientation;
|
---|
[591] | 1763 | }
|
---|
| 1764 |
|
---|
| 1765 |
|
---|
[519] | 1766 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
|
---|
| 1767 | {
|
---|
[542] | 1768 | return mViewSpaceBox;
|
---|
[519] | 1769 | }
|
---|
| 1770 |
|
---|
| 1771 |
|
---|
[480] | 1772 | void ViewCellsManager::ResetViewCells()
|
---|
| 1773 | {
|
---|
[720] | 1774 | // recollect view cells
|
---|
[480] | 1775 | mViewCells.clear();
|
---|
| 1776 | CollectViewCells();
|
---|
[590] | 1777 |
|
---|
[720] | 1778 | // stats are computed once more
|
---|
[480] | 1779 | EvaluateViewCellsStats();
|
---|
[590] | 1780 |
|
---|
[520] | 1781 | // has to be recomputed
|
---|
[480] | 1782 | mTotalAreaValid = false;
|
---|
| 1783 | }
|
---|
| 1784 |
|
---|
[485] | 1785 |
|
---|
[547] | 1786 | int ViewCellsManager::GetMaxPvsSize() const
|
---|
| 1787 | {
|
---|
| 1788 | return mMaxPvsSize;
|
---|
| 1789 | }
|
---|
| 1790 |
|
---|
[590] | 1791 |
|
---|
[563] | 1792 | void
|
---|
| 1793 | ViewCellsManager::AddSampleContributions(const VssRayContainer &rays)
|
---|
| 1794 | {
|
---|
| 1795 | if (!ViewCellsConstructed())
|
---|
| 1796 | return;
|
---|
[564] | 1797 |
|
---|
[563] | 1798 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[564] | 1799 |
|
---|
[563] | 1800 | for (it = rays.begin(); it != it_end; ++ it) {
|
---|
| 1801 | AddSampleContributions(*(*it));
|
---|
| 1802 | }
|
---|
| 1803 | }
|
---|
[547] | 1804 |
|
---|
[581] | 1805 |
|
---|
[562] | 1806 | int ViewCellsManager::GetMinPvsSize() const
|
---|
| 1807 | {
|
---|
| 1808 | return mMinPvsSize;
|
---|
| 1809 | }
|
---|
| 1810 |
|
---|
| 1811 |
|
---|
| 1812 |
|
---|
[561] | 1813 | float ViewCellsManager::GetMaxPvsRatio() const
|
---|
| 1814 | {
|
---|
| 1815 | return mMaxPvsRatio;
|
---|
| 1816 | }
|
---|
| 1817 |
|
---|
| 1818 |
|
---|
[563] | 1819 | void
|
---|
| 1820 | ViewCellsManager::AddSampleContributions(VssRay &ray)
|
---|
[468] | 1821 | {
|
---|
[563] | 1822 | // assumes viewcells have been stored...
|
---|
| 1823 | ViewCellContainer *viewcells = &ray.mViewCells;
|
---|
| 1824 | ViewCellContainer::const_iterator it;
|
---|
[1594] | 1825 |
|
---|
| 1826 | if (!ray.mTerminationObject)
|
---|
| 1827 | return;
|
---|
| 1828 |
|
---|
| 1829 | #if USE_KD_PVS
|
---|
| 1830 | float area = GetPreprocessor()->mKdTree->GetBox().SurfaceArea()*KD_PVS_AREA;
|
---|
| 1831 | KdNode *node = GetPreprocessor()->mKdTree->GetNode(ray.mTermination, area);
|
---|
| 1832 | Intersectable *obj =
|
---|
| 1833 | GetPreprocessor()->mKdTree->
|
---|
| 1834 | GetOrCreateKdIntersectable(node);
|
---|
| 1835 | #else
|
---|
| 1836 | Intersectable *obj = ray.mTerminationObject;
|
---|
| 1837 | #endif
|
---|
| 1838 |
|
---|
[563] | 1839 | for (it = viewcells->begin(); it != viewcells->end(); ++it) {
|
---|
| 1840 | ViewCell *viewcell = *it;
|
---|
[569] | 1841 | if (viewcell->GetValid()) {
|
---|
| 1842 | // if ray not outside of view space
|
---|
[1594] | 1843 | viewcell->GetPvs().AddSample(obj, ray.mPdf);
|
---|
[569] | 1844 | }
|
---|
[563] | 1845 | }
|
---|
| 1846 | }
|
---|
[503] | 1847 |
|
---|
[574] | 1848 |
|
---|
[1159] | 1849 | float ViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
| 1850 | const bool addRays,
|
---|
| 1851 | const bool storeViewCells)
|
---|
[563] | 1852 | {
|
---|
[570] | 1853 | ViewCellContainer viewcells;
|
---|
[564] | 1854 |
|
---|
[570] | 1855 | ray.mPvsContribution = 0;
|
---|
| 1856 | ray.mRelativePvsContribution = 0.0f;
|
---|
[485] | 1857 |
|
---|
[570] | 1858 | static Ray hray;
|
---|
[564] | 1859 | hray.Init(ray);
|
---|
| 1860 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
| 1861 | //Ray hray(ray);
|
---|
| 1862 |
|
---|
| 1863 | float tmin = 0, tmax = 1.0;
|
---|
| 1864 |
|
---|
| 1865 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
[565] | 1866 | return 0;
|
---|
[564] | 1867 |
|
---|
| 1868 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 1869 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 1870 |
|
---|
[1291] | 1871 | ViewCell::NewMail();
|
---|
| 1872 |
|
---|
[1006] | 1873 | // traverse the view space subdivision
|
---|
[564] | 1874 | CastLineSegment(origin, termination, viewcells);
|
---|
[664] | 1875 |
|
---|
[574] | 1876 | if (storeViewCells)
|
---|
[1155] | 1877 | { // copy viewcells memory efficiently
|
---|
[570] | 1878 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 1879 | ray.mViewCells = viewcells;
|
---|
| 1880 | }
|
---|
[564] | 1881 |
|
---|
[1594] | 1882 | #if USE_KD_PVS
|
---|
| 1883 | float area = GetPreprocessor()->mKdTree->GetBox().SurfaceArea()*KD_PVS_AREA;
|
---|
| 1884 | KdNode *node = GetPreprocessor()->mKdTree->GetNode(ray.mTermination, area);
|
---|
| 1885 | Intersectable *obj =
|
---|
| 1886 | GetPreprocessor()->mKdTree->
|
---|
| 1887 | GetOrCreateKdIntersectable(node);
|
---|
| 1888 | #else
|
---|
| 1889 | Intersectable *obj = ray.mTerminationObject;
|
---|
| 1890 | #endif
|
---|
| 1891 |
|
---|
| 1892 |
|
---|
[570] | 1893 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
[1594] | 1894 |
|
---|
[664] | 1895 | for (; it != viewcells.end(); ++ it)
|
---|
| 1896 | {
|
---|
| 1897 | ViewCell *viewcell = *it;
|
---|
[1522] | 1898 |
|
---|
[1528] | 1899 | if (viewcell->GetValid()) // tests if view cell is in valid view space
|
---|
[664] | 1900 | {
|
---|
| 1901 | float contribution;
|
---|
[1291] | 1902 |
|
---|
| 1903 | if (ray.mTerminationObject)
|
---|
[1594] | 1904 | {
|
---|
| 1905 |
|
---|
| 1906 |
|
---|
| 1907 | if (viewcell->GetPvs().GetSampleContribution(obj,
|
---|
| 1908 | ray.mPdf,
|
---|
| 1909 | contribution))
|
---|
[1582] | 1910 | {
|
---|
[1594] | 1911 | ++ ray.mPvsContribution;
|
---|
| 1912 | ray.mRelativePvsContribution += contribution;
|
---|
[1582] | 1913 | }
|
---|
[664] | 1914 | }
|
---|
[1291] | 1915 |
|
---|
| 1916 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[1582] | 1917 |
|
---|
[840] | 1918 | // for directional sampling it is important to count only contributions
|
---|
[718] | 1919 | // made in one direction!!!
|
---|
| 1920 | // the other contributions of this sample will be counted for the oposite ray!
|
---|
[1582] | 1921 |
|
---|
[666] | 1922 | if (ray.mOriginObject &&
|
---|
| 1923 | viewcell->GetPvs().GetSampleContribution(ray.mOriginObject,
|
---|
| 1924 | ray.mPdf,
|
---|
| 1925 | contribution))
|
---|
[1582] | 1926 | {
|
---|
[666] | 1927 | ++ ray.mPvsContribution;
|
---|
[1582] | 1928 | ray.mRelativePvsContribution += contribution;
|
---|
| 1929 | }
|
---|
[718] | 1930 | #endif
|
---|
[664] | 1931 | }
|
---|
[569] | 1932 | }
|
---|
[564] | 1933 |
|
---|
[1528] | 1934 | // if true, the sampled entities are stored in the pvs
|
---|
[664] | 1935 | if (addRays)
|
---|
| 1936 | {
|
---|
| 1937 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
| 1938 | {
|
---|
| 1939 | ViewCell *viewcell = *it;
|
---|
| 1940 |
|
---|
[706] | 1941 | if (viewcell->GetValid())
|
---|
[664] | 1942 | {
|
---|
[1486] | 1943 | // if view point is valid, add new object to the pvs
|
---|
[1155] | 1944 | if (ray.mTerminationObject)
|
---|
[1545] | 1945 | {
|
---|
[1594] | 1946 | viewcell->GetPvs().AddSample(obj, ray.mPdf);
|
---|
[1159] | 1947 | }
|
---|
[1166] | 1948 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[666] | 1949 | if (ray.mOriginObject)
|
---|
[1159] | 1950 | {
|
---|
[666] | 1951 | viewcell->GetPvs().AddSample(ray.mOriginObject, ray.mPdf);
|
---|
[1159] | 1952 | }
|
---|
[718] | 1953 | #endif
|
---|
[664] | 1954 | }
|
---|
| 1955 | }
|
---|
[563] | 1956 | }
|
---|
[570] | 1957 |
|
---|
| 1958 | return ray.mRelativePvsContribution;
|
---|
[468] | 1959 | }
|
---|
| 1960 |
|
---|
| 1961 |
|
---|
[469] | 1962 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
[485] | 1963 | const int maxSize,
|
---|
[503] | 1964 | VssRayContainer &usedRays,
|
---|
[485] | 1965 | VssRayContainer *savedRays) const
|
---|
[469] | 1966 | {
|
---|
[485] | 1967 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
[473] | 1968 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
[469] | 1969 |
|
---|
[485] | 1970 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
[469] | 1971 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
| 1972 | {
|
---|
[473] | 1973 | if (Random(1.0f) < prop)
|
---|
[485] | 1974 | usedRays.push_back(*it);
|
---|
| 1975 | else if (savedRays)
|
---|
| 1976 | savedRays->push_back(*it);
|
---|
[469] | 1977 | }
|
---|
| 1978 | }
|
---|
| 1979 |
|
---|
[477] | 1980 |
|
---|
[728] | 1981 | float ViewCellsManager::GetRendercost(ViewCell *viewCell) const
|
---|
[605] | 1982 | {
|
---|
[1145] | 1983 | return (float)mViewCellsTree->GetPvsSize(viewCell);
|
---|
[605] | 1984 | }
|
---|
| 1985 |
|
---|
| 1986 |
|
---|
[477] | 1987 | float ViewCellsManager::GetAccVcArea()
|
---|
[470] | 1988 | {
|
---|
| 1989 | // if already computed
|
---|
| 1990 | if (mTotalAreaValid)
|
---|
[728] | 1991 | {
|
---|
[470] | 1992 | return mTotalArea;
|
---|
[728] | 1993 | }
|
---|
[470] | 1994 |
|
---|
| 1995 | mTotalArea = 0;
|
---|
| 1996 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1997 |
|
---|
| 1998 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[480] | 1999 | {
|
---|
| 2000 | //Debug << "area: " << GetArea(*it);
|
---|
[470] | 2001 | mTotalArea += GetArea(*it);
|
---|
[480] | 2002 | }
|
---|
| 2003 |
|
---|
[470] | 2004 | mTotalAreaValid = true;
|
---|
| 2005 |
|
---|
| 2006 | return mTotalArea;
|
---|
| 2007 | }
|
---|
| 2008 |
|
---|
[482] | 2009 |
|
---|
[475] | 2010 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
| 2011 | {
|
---|
[660] | 2012 | s << mCurrentViewCellsStats << endl;
|
---|
[475] | 2013 | }
|
---|
| 2014 |
|
---|
[477] | 2015 |
|
---|
[508] | 2016 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
[482] | 2017 | {
|
---|
[651] | 2018 | if (ViewCellsTreeConstructed())
|
---|
[1284] | 2019 | {
|
---|
[651] | 2020 | mViewCellsTree->CreateUniqueViewCellsIds();
|
---|
[1284] | 2021 | }
|
---|
| 2022 | else // no view cells tree, handle view cells "myself"
|
---|
| 2023 | {
|
---|
[1551] | 2024 | int i = 0;
|
---|
| 2025 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
| 2026 | for (vit = mViewCells.begin(); vit != vit_end; ++ vit)
|
---|
[1284] | 2027 | {
|
---|
[1557] | 2028 | if ((*vit)->GetId() != OUT_OF_BOUNDS_ID)
|
---|
| 2029 | {
|
---|
[1551] | 2030 | mViewCells[i]->SetId(i ++);
|
---|
[1557] | 2031 | }
|
---|
[1284] | 2032 | }
|
---|
| 2033 | }
|
---|
[508] | 2034 | }
|
---|
| 2035 |
|
---|
[1416] | 2036 |
|
---|
| 2037 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter,
|
---|
| 2038 | const AxisAlignedBox3 *sceneBox,
|
---|
[1571] | 2039 | const AxisAlignedPlane *clipPlane,
|
---|
| 2040 | const bool colorCode
|
---|
[1416] | 2041 | ) const
|
---|
[508] | 2042 | {
|
---|
[482] | 2043 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2044 |
|
---|
| 2045 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2046 | {
|
---|
[574] | 2047 | if (!mOnlyValidViewCells || (*it)->GetValid())
|
---|
| 2048 | {
|
---|
[1571] | 2049 | ExportColor(exporter, *it, colorCode);
|
---|
[1416] | 2050 | ExportViewCellGeometry(exporter, *it, sceneBox, clipPlane);
|
---|
[574] | 2051 | }
|
---|
[482] | 2052 | }
|
---|
| 2053 | }
|
---|
| 2054 |
|
---|
| 2055 |
|
---|
[517] | 2056 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
[503] | 2057 | {
|
---|
| 2058 | // convert to meshes
|
---|
| 2059 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2060 |
|
---|
| 2061 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2062 | {
|
---|
[517] | 2063 | if (!(*it)->GetMesh())
|
---|
[1001] | 2064 | {
|
---|
[517] | 2065 | CreateMesh(*it);
|
---|
[1001] | 2066 | }
|
---|
[503] | 2067 | }
|
---|
| 2068 | }
|
---|
| 2069 |
|
---|
[508] | 2070 |
|
---|
[944] | 2071 | bool ViewCellsManager::ExportViewCells(const string filename,
|
---|
| 2072 | const bool exportPvs,
|
---|
| 2073 | const ObjectContainer &objects)
|
---|
[564] | 2074 | {
|
---|
[508] | 2075 | return false;
|
---|
| 2076 | }
|
---|
| 2077 |
|
---|
| 2078 |
|
---|
[610] | 2079 | void ViewCellsManager::CollectViewCells(const int n)
|
---|
[508] | 2080 | {
|
---|
[610] | 2081 | mNumActiveViewCells = n;
|
---|
| 2082 | mViewCells.clear();
|
---|
[1545] | 2083 | // implemented in subclasses
|
---|
[610] | 2084 | CollectViewCells();
|
---|
| 2085 | }
|
---|
[508] | 2086 |
|
---|
| 2087 |
|
---|
[660] | 2088 | void ViewCellsManager::SetViewCellsActive()
|
---|
| 2089 | {
|
---|
[882] | 2090 | // collect leaf view cells and set the pointers to the currently
|
---|
| 2091 | // active view cells
|
---|
[660] | 2092 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[944] | 2093 |
|
---|
[660] | 2094 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2095 | {
|
---|
[881] | 2096 | ViewCellContainer leaves;
|
---|
| 2097 | mViewCellsTree->CollectLeaves(*it, leaves);
|
---|
| 2098 |
|
---|
| 2099 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 2100 | for (lit = mViewCells.begin(); lit != lit_end; ++ lit)
|
---|
| 2101 | {
|
---|
| 2102 | dynamic_cast<ViewCellLeaf *>(*lit)->SetActiveViewCell(*it);
|
---|
| 2103 | }
|
---|
[660] | 2104 | }
|
---|
| 2105 | }
|
---|
[508] | 2106 |
|
---|
[840] | 2107 |
|
---|
| 2108 | int ViewCellsManager::GetMaxFilterSize() const
|
---|
| 2109 | {
|
---|
| 2110 | return mMaxFilterSize;
|
---|
| 2111 | }
|
---|
| 2112 |
|
---|
[1001] | 2113 |
|
---|
[840] | 2114 | static const bool USE_ASCII = true;
|
---|
| 2115 |
|
---|
[1001] | 2116 |
|
---|
[840] | 2117 | bool ViewCellsManager::ExportBoundingBoxes(const string filename,
|
---|
| 2118 | const ObjectContainer &objects) const
|
---|
| 2119 | {
|
---|
| 2120 | ObjectContainer::const_iterator it, it_end = objects.end();
|
---|
| 2121 |
|
---|
| 2122 | if (USE_ASCII)
|
---|
| 2123 | {
|
---|
| 2124 | ofstream boxesOut(filename.c_str());
|
---|
| 2125 | if (!boxesOut.is_open())
|
---|
| 2126 | return false;
|
---|
| 2127 |
|
---|
| 2128 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2129 | {
|
---|
| 2130 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2131 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2132 |
|
---|
| 2133 | boxesOut << mi->GetId() << " "
|
---|
| 2134 | << box.Min().x << " "
|
---|
| 2135 | << box.Min().y << " "
|
---|
| 2136 | << box.Min().z << " "
|
---|
| 2137 | << box.Max().x << " "
|
---|
| 2138 | << box.Max().y << " "
|
---|
| 2139 | << box.Max().z << endl;
|
---|
| 2140 | }
|
---|
| 2141 |
|
---|
| 2142 | boxesOut.close();
|
---|
| 2143 | }
|
---|
| 2144 | else
|
---|
| 2145 | {
|
---|
| 2146 | ofstream boxesOut(filename.c_str(), ios::binary);
|
---|
| 2147 |
|
---|
| 2148 | if (!boxesOut.is_open())
|
---|
| 2149 | return false;
|
---|
| 2150 |
|
---|
| 2151 | for (it = objects.begin(); it != it_end; ++ it)
|
---|
| 2152 | {
|
---|
| 2153 | MeshInstance *mi = dynamic_cast<MeshInstance *>(*it);
|
---|
| 2154 | const AxisAlignedBox3 box = mi->GetBox();
|
---|
| 2155 | Vector3 bmin = box.Min();
|
---|
| 2156 | Vector3 bmax = box.Max();
|
---|
[850] | 2157 | int id = mi->GetId();
|
---|
[840] | 2158 |
|
---|
[850] | 2159 | boxesOut.write(reinterpret_cast<char *>(&id), sizeof(int));
|
---|
[840] | 2160 | boxesOut.write(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2161 | boxesOut.write(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2162 | }
|
---|
| 2163 |
|
---|
| 2164 | boxesOut.close();
|
---|
| 2165 | }
|
---|
| 2166 |
|
---|
| 2167 | return true;
|
---|
| 2168 | }
|
---|
| 2169 |
|
---|
| 2170 |
|
---|
[850] | 2171 | bool ViewCellsManager::LoadBoundingBoxes(const string filename,
|
---|
| 2172 | IndexedBoundingBoxContainer &boxes) const
|
---|
[840] | 2173 | {
|
---|
[850] | 2174 | Vector3 bmin, bmax;
|
---|
| 2175 | int id;
|
---|
[840] | 2176 |
|
---|
[850] | 2177 | if (USE_ASCII)
|
---|
[840] | 2178 | {
|
---|
[850] | 2179 | ifstream boxesIn(filename.c_str());
|
---|
[840] | 2180 |
|
---|
[850] | 2181 | if (!boxesIn.is_open())
|
---|
[840] | 2182 | {
|
---|
[850] | 2183 | cout << "failed to open file " << filename << endl;
|
---|
| 2184 | return false;
|
---|
[840] | 2185 | }
|
---|
[850] | 2186 |
|
---|
| 2187 | string buf;
|
---|
| 2188 | while (!(getline(boxesIn, buf)).eof())
|
---|
[840] | 2189 | {
|
---|
[850] | 2190 | sscanf(buf.c_str(), "%d %f %f %f %f %f %f",
|
---|
| 2191 | &id, &bmin.x, &bmin.y, &bmin.z,
|
---|
| 2192 | &bmax.x, &bmax.y, &bmax.z);
|
---|
| 2193 |
|
---|
| 2194 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2195 | // MeshInstance *mi = new MeshInstance();
|
---|
| 2196 | // HACK: set bounding box to new box
|
---|
| 2197 | //mi->mBox = box;
|
---|
| 2198 |
|
---|
| 2199 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2200 | }
|
---|
| 2201 |
|
---|
[850] | 2202 | boxesIn.close();
|
---|
[840] | 2203 | }
|
---|
[850] | 2204 | else
|
---|
[840] | 2205 | {
|
---|
[850] | 2206 | ifstream boxesIn(filename.c_str(), ios::binary);
|
---|
[840] | 2207 |
|
---|
[850] | 2208 | if (!boxesIn.is_open())
|
---|
| 2209 | return false;
|
---|
| 2210 |
|
---|
| 2211 | while (1)
|
---|
[840] | 2212 | {
|
---|
[850] | 2213 | boxesIn.read(reinterpret_cast<char *>(&id), sizeof(Vector3));
|
---|
| 2214 | boxesIn.read(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
|
---|
| 2215 | boxesIn.read(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
|
---|
| 2216 |
|
---|
| 2217 | if (boxesIn.eof())
|
---|
| 2218 | break;
|
---|
| 2219 |
|
---|
| 2220 |
|
---|
| 2221 | AxisAlignedBox3 box(bmin, bmax);
|
---|
| 2222 | MeshInstance *mi = new MeshInstance(NULL);
|
---|
| 2223 |
|
---|
| 2224 | // HACK: set bounding box to new box
|
---|
| 2225 | //mi->mBox = box;
|
---|
| 2226 | //boxes.push_back(mi);
|
---|
| 2227 | boxes.push_back(IndexedBoundingBox(id, box));
|
---|
[840] | 2228 | }
|
---|
| 2229 |
|
---|
[850] | 2230 | boxesIn.close();
|
---|
[840] | 2231 | }
|
---|
| 2232 |
|
---|
| 2233 | return true;
|
---|
[850] | 2234 | }
|
---|
[840] | 2235 |
|
---|
[931] | 2236 |
|
---|
| 2237 | float ViewCellsManager::GetFilterWidth()
|
---|
| 2238 | {
|
---|
| 2239 | return mFilterWidth;
|
---|
| 2240 | }
|
---|
| 2241 |
|
---|
| 2242 |
|
---|
| 2243 | float ViewCellsManager::GetAbsFilterWidth()
|
---|
| 2244 | {
|
---|
| 2245 | return Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 2246 | }
|
---|
| 2247 |
|
---|
| 2248 |
|
---|
[1168] | 2249 | void ViewCellsManager::UpdateScalarPvsSize(ViewCell *vc,
|
---|
| 2250 | const int pvsSize,
|
---|
| 2251 | const int entriesInPvs) const
|
---|
[1002] | 2252 | {
|
---|
| 2253 | vc->mPvsSize = pvsSize;
|
---|
[1160] | 2254 | vc->mEntriesInPvs = entriesInPvs;
|
---|
| 2255 |
|
---|
[1002] | 2256 | vc->mPvsSizeValid = true;
|
---|
| 2257 | }
|
---|
| 2258 |
|
---|
| 2259 |
|
---|
[1021] | 2260 | void
|
---|
| 2261 | ViewCellsManager::ApplyFilter(ViewCell *viewCell,
|
---|
| 2262 | KdTree *kdTree,
|
---|
| 2263 | const float viewSpaceFilterSize,
|
---|
| 2264 | const float spatialFilterSize,
|
---|
| 2265 | ObjectPvs &pvs
|
---|
| 2266 | )
|
---|
| 2267 | {
|
---|
| 2268 | // extend the pvs of the viewcell by pvs of its neighbors
|
---|
| 2269 | // and apply spatial filter by including all neighbors of the objects
|
---|
| 2270 | // in the pvs
|
---|
| 2271 |
|
---|
| 2272 | // get all viewcells intersecting the viewSpaceFilterBox
|
---|
| 2273 | // and compute the pvs union
|
---|
| 2274 |
|
---|
| 2275 | //Vector3 center = viewCell->GetBox().Center();
|
---|
| 2276 | // Vector3 center = m->mBox.Center();
|
---|
| 2277 |
|
---|
| 2278 | // AxisAlignedBox3 box(center - Vector3(viewSpaceFilterSize/2),
|
---|
| 2279 | // center + Vector3(viewSpaceFilterSize/2));
|
---|
| 2280 | if (!ViewCellsConstructed())
|
---|
| 2281 | return;
|
---|
| 2282 |
|
---|
| 2283 | if (viewSpaceFilterSize >= 0.0f) {
|
---|
| 2284 |
|
---|
[1586] | 2285 | const bool usePrVS = false;
|
---|
[1021] | 2286 |
|
---|
| 2287 | if (!usePrVS) {
|
---|
| 2288 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2289 | box.Enlarge(Vector3(viewSpaceFilterSize/2));
|
---|
| 2290 |
|
---|
| 2291 | ViewCellContainer viewCells;
|
---|
| 2292 | ComputeBoxIntersections(box, viewCells);
|
---|
| 2293 |
|
---|
| 2294 | // cout<<"box="<<box<<endl;
|
---|
| 2295 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 2296 |
|
---|
| 2297 | int i;
|
---|
| 2298 | for (i=0; it != it_end; ++ it, ++ i) {
|
---|
| 2299 | //cout<<"v"<<i<<" pvs="<<(*it)->GetPvs().mEntries.size()<<endl;
|
---|
| 2300 | pvs.Merge((*it)->GetPvs());
|
---|
| 2301 | }
|
---|
| 2302 | } else {
|
---|
| 2303 | PrVs prvs;
|
---|
| 2304 | AxisAlignedBox3 box = GetViewCellBox(viewCell);
|
---|
| 2305 |
|
---|
| 2306 | // mViewCellsManager->SetMaxFilterSize(1);
|
---|
| 2307 | GetPrVS(box.Center(), prvs, viewSpaceFilterSize);
|
---|
| 2308 | pvs = prvs.mViewCell->GetPvs();
|
---|
| 2309 | DeleteLocalMergeTree(prvs.mViewCell);
|
---|
| 2310 | }
|
---|
| 2311 | } else
|
---|
| 2312 | pvs = viewCell->GetPvs();
|
---|
| 2313 |
|
---|
| 2314 | if (spatialFilterSize >=0.0f)
|
---|
| 2315 | ApplySpatialFilter(kdTree, spatialFilterSize, pvs);
|
---|
| 2316 |
|
---|
| 2317 | }
|
---|
| 2318 |
|
---|
| 2319 |
|
---|
| 2320 |
|
---|
| 2321 | void
|
---|
| 2322 | ViewCellsManager::ApplyFilter(KdTree *kdTree,
|
---|
| 2323 | const float relViewSpaceFilterSize,
|
---|
| 2324 | const float relSpatialFilterSize
|
---|
| 2325 | )
|
---|
| 2326 | {
|
---|
| 2327 |
|
---|
| 2328 | if (!ViewCellsConstructed())
|
---|
| 2329 | return;
|
---|
| 2330 |
|
---|
| 2331 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2332 |
|
---|
| 2333 | ObjectPvs *newPvs;
|
---|
| 2334 | newPvs = new ObjectPvs[mViewCells.size()];
|
---|
| 2335 |
|
---|
| 2336 | float viewSpaceFilterSize = Magnitude(mViewSpaceBox.Size())*relViewSpaceFilterSize;
|
---|
| 2337 | float spatialFilterSize = Magnitude(kdTree->GetBox().Size())*relSpatialFilterSize;
|
---|
| 2338 |
|
---|
| 2339 | int i;
|
---|
| 2340 | for (i=0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
| 2341 | ApplyFilter(*it,
|
---|
| 2342 | kdTree,
|
---|
| 2343 | viewSpaceFilterSize,
|
---|
| 2344 | spatialFilterSize,
|
---|
| 2345 | newPvs[i]
|
---|
| 2346 | );
|
---|
| 2347 | }
|
---|
| 2348 |
|
---|
| 2349 | // now replace all pvss
|
---|
| 2350 | for (i = 0, it = mViewCells.begin(); it != it_end; ++ it, ++ i) {
|
---|
| 2351 |
|
---|
| 2352 | ObjectPvs &pvs = (*it)->GetPvs();
|
---|
| 2353 | pvs.Clear();
|
---|
| 2354 | pvs = newPvs[i];
|
---|
| 2355 | newPvs[i].Clear();
|
---|
| 2356 | }
|
---|
| 2357 |
|
---|
| 2358 | delete [] newPvs;
|
---|
| 2359 | }
|
---|
| 2360 |
|
---|
| 2361 |
|
---|
| 2362 |
|
---|
| 2363 |
|
---|
| 2364 | void
|
---|
| 2365 | ViewCellsManager::ApplySpatialFilter(
|
---|
| 2366 | KdTree *kdTree,
|
---|
| 2367 | const float spatialFilterSize,
|
---|
| 2368 | ObjectPvs &pvs
|
---|
| 2369 | )
|
---|
| 2370 | {
|
---|
| 2371 | // now compute a new Pvs by including also objects intersecting the
|
---|
| 2372 | // extended boxes of visible objects
|
---|
| 2373 | Intersectable::NewMail();
|
---|
| 2374 |
|
---|
[1189] | 2375 | ObjectPvsMap::const_iterator oi;
|
---|
[1021] | 2376 |
|
---|
[1189] | 2377 | for (oi = pvs.mEntries.begin(); oi != pvs.mEntries.end(); ++ oi)
|
---|
| 2378 | {
|
---|
| 2379 | Intersectable *object = (*oi).first;
|
---|
| 2380 | object->Mail();
|
---|
[1021] | 2381 | }
|
---|
| 2382 |
|
---|
| 2383 | ObjectPvs nPvs;
|
---|
[1189] | 2384 | int nPvsSize = 0;
|
---|
[1021] | 2385 | // now go through the pvs again
|
---|
| 2386 | for (oi = pvs.mEntries.begin(); oi != pvs.mEntries.end(); ++oi) {
|
---|
| 2387 | Intersectable *object = (*oi).first;
|
---|
| 2388 |
|
---|
| 2389 | // Vector3 center = object->GetBox().Center();
|
---|
| 2390 | // AxisAlignedBox3 box(center - Vector3(spatialFilterSize/2),
|
---|
| 2391 | // center + Vector3(spatialFilterSize/2));
|
---|
| 2392 |
|
---|
| 2393 | AxisAlignedBox3 box = object->GetBox();
|
---|
| 2394 | box.Enlarge(Vector3(spatialFilterSize/2));
|
---|
| 2395 |
|
---|
| 2396 | ObjectContainer objects;
|
---|
| 2397 |
|
---|
| 2398 | // $$ warning collect objects takes only unmailed ones!
|
---|
[1586] | 2399 | kdTree->CollectObjects(box, objects);
|
---|
[1021] | 2400 | // cout<<"collected objects="<<objects.size()<<endl;
|
---|
| 2401 | ObjectContainer::const_iterator noi = objects.begin();
|
---|
[1586] | 2402 | for (; noi != objects.end(); ++ noi)
|
---|
| 2403 | {
|
---|
| 2404 | Intersectable *o = *noi;
|
---|
| 2405 | // $$ JB warning: pdfs are not correct at this point!
|
---|
| 2406 | nPvs.AddSample(o, Limits::Small);
|
---|
| 2407 | nPvsSize ++;
|
---|
[1021] | 2408 | }
|
---|
| 2409 | }
|
---|
| 2410 | // cout<<"nPvs size = "<<nPvsSize<<endl;
|
---|
| 2411 | pvs.Merge(nPvs);
|
---|
| 2412 | }
|
---|
| 2413 |
|
---|
| 2414 |
|
---|
[1571] | 2415 | void ViewCellsManager::ExportColor(Exporter *exporter,
|
---|
| 2416 | ViewCell *vc,
|
---|
| 2417 | bool colorCode) const
|
---|
[1021] | 2418 | {
|
---|
| 2419 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
| 2420 |
|
---|
| 2421 | float importance = 0;
|
---|
| 2422 | static Material m;
|
---|
| 2423 |
|
---|
| 2424 | switch (mColorCode)
|
---|
| 2425 | {
|
---|
| 2426 | case 0: // Random
|
---|
| 2427 | {
|
---|
| 2428 | if (vcValid)
|
---|
| 2429 | {
|
---|
| 2430 | m.mDiffuseColor.r = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 2431 | m.mDiffuseColor.g = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 2432 | m.mDiffuseColor.b = 0.5f + RandomValue(0.f, 0.5f);
|
---|
| 2433 | }
|
---|
| 2434 | else
|
---|
| 2435 | {
|
---|
| 2436 | m.mDiffuseColor.r = 0.0f;
|
---|
| 2437 | m.mDiffuseColor.g = 1.0f;
|
---|
| 2438 | m.mDiffuseColor.b = 0.0f;
|
---|
| 2439 | }
|
---|
| 2440 |
|
---|
| 2441 | exporter->SetForcedMaterial(m);
|
---|
| 2442 | return;
|
---|
| 2443 | }
|
---|
| 2444 |
|
---|
| 2445 | case 1: // pvs
|
---|
| 2446 | {
|
---|
| 2447 | if (mCurrentViewCellsStats.maxPvs)
|
---|
[1121] | 2448 | {
|
---|
| 2449 | importance =
|
---|
[1142] | 2450 | (float)mViewCellsTree->GetPvsSize(vc) /
|
---|
[1121] | 2451 | (float)mCurrentViewCellsStats.maxPvs;
|
---|
| 2452 | }
|
---|
[1021] | 2453 | }
|
---|
| 2454 | break;
|
---|
| 2455 | case 2: // merges
|
---|
| 2456 | {
|
---|
| 2457 | const int lSize = mViewCellsTree->GetNumInitialViewCells(vc);
|
---|
| 2458 | importance = (float)lSize / (float)mCurrentViewCellsStats.maxLeaves;
|
---|
| 2459 | }
|
---|
| 2460 | break;
|
---|
| 2461 | #if 0
|
---|
| 2462 | case 3: // merge tree differene
|
---|
| 2463 | {
|
---|
| 2464 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
| 2465 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
| 2466 |
|
---|
| 2467 | }
|
---|
| 2468 | break;
|
---|
| 2469 | #endif
|
---|
| 2470 | default:
|
---|
| 2471 | break;
|
---|
| 2472 | }
|
---|
| 2473 |
|
---|
| 2474 | // special color code for invalid view cells
|
---|
| 2475 | m.mDiffuseColor.r = importance;
|
---|
| 2476 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
| 2477 | m.mDiffuseColor.b = vcValid ? 1.0f : 0.0f;
|
---|
| 2478 |
|
---|
| 2479 | //Debug << "importance: " << importance << endl;
|
---|
| 2480 | exporter->SetForcedMaterial(m);
|
---|
| 2481 | }
|
---|
| 2482 |
|
---|
| 2483 |
|
---|
[1022] | 2484 | void ViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 2485 | vector<MergeCandidate> &candidates)
|
---|
| 2486 | {
|
---|
| 2487 | // implemented in subclasses
|
---|
| 2488 | }
|
---|
| 2489 |
|
---|
[1047] | 2490 |
|
---|
[1608] | 2491 | void
|
---|
| 2492 | ViewCellsManager::UpdatePvsForEvaluation()
|
---|
| 2493 | {
|
---|
| 2494 | ObjectPvs objPvs;
|
---|
| 2495 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), objPvs);
|
---|
| 2496 | }
|
---|
| 2497 |
|
---|
[1168] | 2498 | void ViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
| 2499 | {
|
---|
| 2500 | // terminate traversal
|
---|
| 2501 | if (root->IsLeaf())
|
---|
| 2502 | {
|
---|
| 2503 | // we assume that pvs is explicitly stored in leaves
|
---|
| 2504 | pvs = root->GetPvs();
|
---|
| 2505 | UpdateScalarPvsSize(root, pvs.CountObjectsInPvs(), pvs.GetSize());
|
---|
| 2506 |
|
---|
| 2507 | return;
|
---|
| 2508 | }
|
---|
| 2509 |
|
---|
[1586] | 2510 | ////////////////
|
---|
| 2511 | //-- interior node => propagate pvs up the tree
|
---|
| 2512 |
|
---|
[1168] | 2513 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
[1606] | 2514 |
|
---|
| 2515 | // reset interior pvs
|
---|
[1168] | 2516 | interior->GetPvs().Clear();
|
---|
[1606] | 2517 | // reset recursive pvs
|
---|
[1168] | 2518 | pvs.Clear();
|
---|
| 2519 | vector<ObjectPvs> pvsList;
|
---|
| 2520 |
|
---|
| 2521 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
| 2522 |
|
---|
| 2523 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit)
|
---|
| 2524 | {
|
---|
| 2525 | ObjectPvs objPvs;
|
---|
| 2526 |
|
---|
[1586] | 2527 | //////////////////
|
---|
[1168] | 2528 | //-- recursivly compute child pvss
|
---|
[1586] | 2529 |
|
---|
[1168] | 2530 | UpdatePvsForEvaluation(*vit, objPvs);
|
---|
| 2531 |
|
---|
| 2532 | // store pvs in vector
|
---|
| 2533 | pvsList.push_back(objPvs);
|
---|
| 2534 | }
|
---|
| 2535 |
|
---|
| 2536 | #if 1
|
---|
| 2537 | Intersectable::NewMail();
|
---|
| 2538 |
|
---|
| 2539 | //-- faster way of computing pvs:
|
---|
[1586] | 2540 | //-- construct merged pvs by adding
|
---|
| 2541 | //-- and only those of the next pvs which were not mailed.
|
---|
| 2542 | //-- note: sumpdf is not correct!!
|
---|
| 2543 |
|
---|
[1168] | 2544 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
| 2545 |
|
---|
| 2546 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
| 2547 | {
|
---|
| 2548 | ObjectPvsMap::iterator pit, pit_end = (*oit).mEntries.end();
|
---|
| 2549 |
|
---|
| 2550 | for (pit = (*oit).mEntries.begin(); pit != pit_end; ++ pit)
|
---|
| 2551 | {
|
---|
| 2552 | Intersectable *intersect = (*pit).first;
|
---|
| 2553 |
|
---|
| 2554 | if (!intersect->Mailed())
|
---|
| 2555 | {
|
---|
| 2556 | pvs.AddSample(intersect, (*pit).second.mSumPdf);
|
---|
| 2557 | intersect->Mail();
|
---|
| 2558 | }
|
---|
| 2559 | }
|
---|
| 2560 | }
|
---|
| 2561 |
|
---|
| 2562 | // store pvs in this node
|
---|
| 2563 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
| 2564 | {
|
---|
| 2565 | interior->SetPvs(pvs);
|
---|
| 2566 | }
|
---|
| 2567 |
|
---|
| 2568 | // set new pvs size
|
---|
| 2569 | UpdateScalarPvsSize(interior, pvs.CountObjectsInPvs(), pvs.GetSize());
|
---|
| 2570 |
|
---|
[1586] | 2571 | #else
|
---|
| 2572 | // really merge cells: slow put sumPdf is correct
|
---|
[1168] | 2573 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 2574 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 2575 | #endif
|
---|
| 2576 | }
|
---|
| 2577 |
|
---|
[1174] | 2578 |
|
---|
| 2579 |
|
---|
[1145] | 2580 | /*******************************************************************/
|
---|
| 2581 | /* BspViewCellsManager implementation */
|
---|
| 2582 | /*******************************************************************/
|
---|
[440] | 2583 |
|
---|
[482] | 2584 |
|
---|
[1264] | 2585 | BspViewCellsManager::BspViewCellsManager(ViewCellsTree *vcTree, BspTree *bspTree):
|
---|
| 2586 | ViewCellsManager(vcTree), mBspTree(bspTree)
|
---|
[440] | 2587 | {
|
---|
[1004] | 2588 | Environment::GetSingleton()->GetIntValue("BspTree.Construction.samples", mInitialSamples);
|
---|
[587] | 2589 | mBspTree->SetViewCellsManager(this);
|
---|
[1545] | 2590 | mBspTree->SetViewCellsTree(mViewCellsTree);
|
---|
[440] | 2591 | }
|
---|
| 2592 |
|
---|
[462] | 2593 |
|
---|
[440] | 2594 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
| 2595 | {
|
---|
| 2596 | return mBspTree->GetRoot() != NULL;
|
---|
| 2597 | }
|
---|
| 2598 |
|
---|
[480] | 2599 |
|
---|
[440] | 2600 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 2601 | {
|
---|
| 2602 | return new BspViewCell(mesh);
|
---|
| 2603 | }
|
---|
| 2604 |
|
---|
[480] | 2605 |
|
---|
[574] | 2606 | int BspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 2607 | const VssRayContainer &rays)
|
---|
[440] | 2608 | {
|
---|
[1545] | 2609 | // if view cells were already constructed, we can finish
|
---|
[440] | 2610 | if (ViewCellsConstructed())
|
---|
| 2611 | return 0;
|
---|
| 2612 |
|
---|
| 2613 | int sampleContributions = 0;
|
---|
[503] | 2614 |
|
---|
[469] | 2615 | // construct view cells using the collected samples
|
---|
| 2616 | RayContainer constructionRays;
|
---|
| 2617 | VssRayContainer savedRays;
|
---|
[440] | 2618 |
|
---|
[1563] | 2619 | // choose a a number of rays based on the ratio of cast rays / requested rays
|
---|
[574] | 2620 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[469] | 2621 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[448] | 2622 |
|
---|
[473] | 2623 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
[1586] | 2624 |
|
---|
[469] | 2625 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 2626 | {
|
---|
[473] | 2627 | if (Random(1.0f) < prop)
|
---|
[469] | 2628 | constructionRays.push_back(new Ray(*(*it)));
|
---|
| 2629 | else
|
---|
| 2630 | savedRays.push_back(*it);
|
---|
| 2631 | }
|
---|
[440] | 2632 |
|
---|
[1545] | 2633 | if (!mUsePredefinedViewCells)
|
---|
[503] | 2634 | {
|
---|
| 2635 | // no view cells loaded
|
---|
[587] | 2636 | mBspTree->Construct(objects, constructionRays, &mViewSpaceBox);
|
---|
[469] | 2637 | // collect final view cells
|
---|
| 2638 | mBspTree->CollectViewCells(mViewCells);
|
---|
[503] | 2639 | }
|
---|
[469] | 2640 | else
|
---|
[1551] | 2641 | {
|
---|
[1545] | 2642 | // use predefined view cells geometry =>
|
---|
| 2643 | // contruct bsp hierarchy over them
|
---|
[469] | 2644 | mBspTree->Construct(mViewCells);
|
---|
| 2645 | }
|
---|
| 2646 |
|
---|
| 2647 | // destroy rays created only for construction
|
---|
| 2648 | CLEAR_CONTAINER(constructionRays);
|
---|
| 2649 |
|
---|
[440] | 2650 | Debug << mBspTree->GetStatistics() << endl;
|
---|
[660] | 2651 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[480] | 2652 |
|
---|
[469] | 2653 | // recast rest of the rays
|
---|
[649] | 2654 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 2655 | ComputeSampleContributions(savedRays, true, false);
|
---|
[469] | 2656 |
|
---|
[719] | 2657 | // real meshes are contructed at this stage
|
---|
| 2658 | if (0)
|
---|
| 2659 | {
|
---|
| 2660 | cout << "finalizing view cells ... ";
|
---|
| 2661 | FinalizeViewCells(true);
|
---|
| 2662 | cout << "finished" << endl;
|
---|
| 2663 | }
|
---|
| 2664 |
|
---|
[440] | 2665 | return sampleContributions;
|
---|
| 2666 | }
|
---|
| 2667 |
|
---|
[503] | 2668 |
|
---|
[480] | 2669 | void BspViewCellsManager::CollectViewCells()
|
---|
[1545] | 2670 | {
|
---|
[587] | 2671 | if (!ViewCellsTreeConstructed())
|
---|
[1545] | 2672 | { // view cells tree constructed
|
---|
[587] | 2673 | mBspTree->CollectViewCells(mViewCells);
|
---|
| 2674 | }
|
---|
| 2675 | else
|
---|
[1545] | 2676 | { // we can use the view cells tree hierarchy to get the right set
|
---|
| 2677 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[587] | 2678 | }
|
---|
[480] | 2679 | }
|
---|
[468] | 2680 |
|
---|
[503] | 2681 |
|
---|
[471] | 2682 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[440] | 2683 | {
|
---|
[591] | 2684 | if (1)
|
---|
| 2685 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
| 2686 | else
|
---|
[1545] | 2687 | // compute view cell area as subsititute for probability
|
---|
[591] | 2688 | return GetArea(viewCell) / GetAccVcArea();
|
---|
[466] | 2689 | }
|
---|
[440] | 2690 |
|
---|
[503] | 2691 |
|
---|
[440] | 2692 |
|
---|
[468] | 2693 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 2694 | const Vector3 &termination,
|
---|
| 2695 | ViewCellContainer &viewcells)
|
---|
[440] | 2696 | {
|
---|
[468] | 2697 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 2698 | }
|
---|
| 2699 |
|
---|
| 2700 |
|
---|
[1551] | 2701 | void ViewCellsManager::ExportMergedViewCells(const ObjectContainer &objects)
|
---|
[1545] | 2702 | {
|
---|
| 2703 | // save color code
|
---|
| 2704 | const int savedColorCode = mColorCode;
|
---|
| 2705 |
|
---|
| 2706 | // export merged view cells
|
---|
| 2707 | mColorCode = 0; // use random colors
|
---|
| 2708 |
|
---|
| 2709 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
| 2710 |
|
---|
| 2711 | cout << "exporting view cells after merge ... ";
|
---|
| 2712 |
|
---|
| 2713 | if (exporter)
|
---|
| 2714 | {
|
---|
| 2715 | if (mExportGeometry)
|
---|
| 2716 | {
|
---|
| 2717 | exporter->ExportGeometry(objects);
|
---|
| 2718 | }
|
---|
| 2719 |
|
---|
| 2720 | exporter->SetFilled();
|
---|
| 2721 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
| 2722 |
|
---|
| 2723 | delete exporter;
|
---|
| 2724 | }
|
---|
| 2725 | cout << "finished" << endl;
|
---|
| 2726 |
|
---|
| 2727 | // export merged view cells using pvs color coding
|
---|
| 2728 | mColorCode = 1;
|
---|
| 2729 |
|
---|
| 2730 | exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
| 2731 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 2732 |
|
---|
| 2733 | if (exporter)
|
---|
| 2734 | {
|
---|
| 2735 | if (mExportGeometry)
|
---|
| 2736 | {
|
---|
| 2737 | exporter->ExportGeometry(objects);
|
---|
| 2738 | }
|
---|
| 2739 |
|
---|
| 2740 | exporter->SetFilled();
|
---|
| 2741 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
| 2742 |
|
---|
| 2743 | delete exporter;
|
---|
| 2744 | }
|
---|
| 2745 | cout << "finished" << endl;
|
---|
| 2746 |
|
---|
| 2747 | mColorCode = savedColorCode;
|
---|
| 2748 | }
|
---|
| 2749 |
|
---|
| 2750 |
|
---|
[503] | 2751 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[468] | 2752 | const VssRayContainer &rays)
|
---|
| 2753 | {
|
---|
[469] | 2754 | if (!ViewCellsConstructed())
|
---|
[441] | 2755 | {
|
---|
| 2756 | Debug << "view cells not constructed" << endl;
|
---|
| 2757 | return 0;
|
---|
| 2758 | }
|
---|
[590] | 2759 |
|
---|
[1414] | 2760 | // view cells already finished before post processing step,
|
---|
| 2761 | // i.e., because they were loaded from disc
|
---|
[590] | 2762 | if (mViewCellsFinished)
|
---|
| 2763 | {
|
---|
| 2764 | FinalizeViewCells(true);
|
---|
| 2765 | EvaluateViewCellsStats();
|
---|
| 2766 |
|
---|
| 2767 | return 0;
|
---|
| 2768 | }
|
---|
| 2769 |
|
---|
[1444] | 2770 | //////////////////
|
---|
[1414] | 2771 | //-- merge leaves of the view cell hierarchy
|
---|
| 2772 |
|
---|
[649] | 2773 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
| 2774 | long startTime = GetTime();
|
---|
| 2775 |
|
---|
| 2776 | VssRayContainer postProcessRays;
|
---|
| 2777 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 2778 |
|
---|
[592] | 2779 | if (mMergeViewCells)
|
---|
[591] | 2780 | {
|
---|
[660] | 2781 | cout << "constructing visibility based merge tree" << endl;
|
---|
[650] | 2782 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
[649] | 2783 | }
|
---|
| 2784 | else
|
---|
| 2785 | {
|
---|
[660] | 2786 | cout << "constructing spatial merge tree" << endl;
|
---|
[1545] | 2787 | ViewCell *root;
|
---|
| 2788 | // the spatial merge tree is difficult to build for
|
---|
| 2789 | // this type of construction, as view cells cover several
|
---|
| 2790 | // leaves => create dummy tree which is only 2 levels deep
|
---|
| 2791 | if (mUsePredefinedViewCells)
|
---|
| 2792 | {
|
---|
| 2793 | root = ConstructDummyMergeTree(mBspTree->GetRoot());
|
---|
| 2794 | }
|
---|
| 2795 | else
|
---|
| 2796 | {
|
---|
| 2797 | // create spatial merge hierarchy
|
---|
| 2798 | root = ConstructSpatialMergeTree(mBspTree->GetRoot());
|
---|
| 2799 | }
|
---|
| 2800 |
|
---|
[752] | 2801 | mViewCellsTree->SetRoot(root);
|
---|
| 2802 |
|
---|
[1415] | 2803 | // recompute pvs in the whole hierarchy
|
---|
[752] | 2804 | ObjectPvs pvs;
|
---|
| 2805 | UpdatePvsForEvaluation(root, pvs);
|
---|
[649] | 2806 | }
|
---|
[440] | 2807 |
|
---|
[1415] | 2808 | cout << "finished" << endl;
|
---|
| 2809 | cout << "merged view cells in "
|
---|
| 2810 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 2811 |
|
---|
| 2812 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 2813 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl << endl;
|
---|
| 2814 |
|
---|
| 2815 |
|
---|
[1418] | 2816 | ////////////////////////
|
---|
[1444] | 2817 | //-- visualization and statistics after merge
|
---|
[1415] | 2818 |
|
---|
[666] | 2819 | if (1)
|
---|
| 2820 | {
|
---|
| 2821 | char mstats[100];
|
---|
[1004] | 2822 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 2823 | mViewCellsTree->ExportStats(mstats);
|
---|
| 2824 | }
|
---|
[650] | 2825 |
|
---|
[1551] | 2826 | // recompute view cells and stats
|
---|
| 2827 | ResetViewCells();
|
---|
[660] | 2828 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[600] | 2829 |
|
---|
[1551] | 2830 | // visualization of the view cells
|
---|
[1545] | 2831 | if (1) ExportMergedViewCells(objects);
|
---|
[600] | 2832 |
|
---|
[719] | 2833 | // compute final meshes and volume / area
|
---|
| 2834 | if (1) FinalizeViewCells(true);
|
---|
| 2835 |
|
---|
[1486] | 2836 | // write view cells to disc
|
---|
| 2837 | if (1 && mExportViewCells)
|
---|
[587] | 2838 | {
|
---|
[840] | 2839 | char filename[100];
|
---|
[1004] | 2840 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
[931] | 2841 | ExportViewCells(filename, mExportPvs, objects);
|
---|
[587] | 2842 | }
|
---|
[840] | 2843 |
|
---|
[650] | 2844 | return 0;
|
---|
[440] | 2845 | }
|
---|
| 2846 |
|
---|
[477] | 2847 |
|
---|
| 2848 | BspViewCellsManager::~BspViewCellsManager()
|
---|
| 2849 | {
|
---|
| 2850 | }
|
---|
| 2851 |
|
---|
| 2852 |
|
---|
[440] | 2853 | int BspViewCellsManager::GetType() const
|
---|
| 2854 | {
|
---|
| 2855 | return BSP;
|
---|
| 2856 | }
|
---|
| 2857 |
|
---|
| 2858 |
|
---|
| 2859 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 2860 | const VssRayContainer &sampleRays)
|
---|
[440] | 2861 | {
|
---|
[469] | 2862 | if (!ViewCellsConstructed())
|
---|
| 2863 | return;
|
---|
[574] | 2864 |
|
---|
[1563] | 2865 | const int savedColorCode = mColorCode;
|
---|
[1551] | 2866 |
|
---|
[600] | 2867 | if (1) // export final view cells
|
---|
[440] | 2868 | {
|
---|
[1020] | 2869 | mColorCode = 1; // hack color code
|
---|
[1415] | 2870 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 2871 |
|
---|
| 2872 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
[587] | 2873 |
|
---|
[469] | 2874 | if (exporter)
|
---|
[440] | 2875 | {
|
---|
[600] | 2876 | if (mExportGeometry)
|
---|
[1416] | 2877 | {
|
---|
[600] | 2878 | exporter->ExportGeometry(objects);
|
---|
[1416] | 2879 | }
|
---|
[590] | 2880 |
|
---|
[1416] | 2881 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[469] | 2882 | delete exporter;
|
---|
[440] | 2883 | }
|
---|
[469] | 2884 | cout << "finished" << endl;
|
---|
[503] | 2885 | }
|
---|
[1551] | 2886 |
|
---|
[1545] | 2887 | // reset color code
|
---|
[600] | 2888 | mColorCode = savedColorCode;
|
---|
| 2889 |
|
---|
[1416] | 2890 |
|
---|
| 2891 | //////////////////
|
---|
[469] | 2892 | //-- visualization of the BSP splits
|
---|
[1416] | 2893 |
|
---|
[469] | 2894 | bool exportSplits = false;
|
---|
[1004] | 2895 | Environment::GetSingleton()->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 2896 |
|
---|
[469] | 2897 | if (exportSplits)
|
---|
[440] | 2898 | {
|
---|
[469] | 2899 | cout << "exporting splits ... ";
|
---|
[477] | 2900 | ExportSplits(objects);
|
---|
[469] | 2901 | cout << "finished" << endl;
|
---|
[440] | 2902 | }
|
---|
[477] | 2903 |
|
---|
[1570] | 2904 | int leafOut;
|
---|
| 2905 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
| 2906 | const int raysOut = 100;
|
---|
| 2907 | ExportSingleViewCells(objects, leafOut, false, true, false, raysOut, "");
|
---|
[440] | 2908 | }
|
---|
| 2909 |
|
---|
| 2910 |
|
---|
[477] | 2911 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
[440] | 2912 | {
|
---|
| 2913 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 2914 |
|
---|
[503] | 2915 | if (exporter)
|
---|
| 2916 | {
|
---|
[598] | 2917 | //exporter->SetFilled();
|
---|
| 2918 | if (mExportGeometry)
|
---|
[1545] | 2919 | {
|
---|
[598] | 2920 | exporter->ExportGeometry(objects);
|
---|
[1545] | 2921 | }
|
---|
[598] | 2922 |
|
---|
[503] | 2923 | Material m;
|
---|
[440] | 2924 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2925 | exporter->SetForcedMaterial(m);
|
---|
| 2926 | exporter->SetWireframe();
|
---|
[503] | 2927 |
|
---|
[440] | 2928 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
| 2929 |
|
---|
[1545] | 2930 | // NOTE: take forced material, else big scenes cannot be viewed
|
---|
[440] | 2931 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 2932 | exporter->SetForcedMaterial(m);
|
---|
[482] | 2933 | //exporter->ResetForcedMaterial();
|
---|
| 2934 |
|
---|
[440] | 2935 | delete exporter;
|
---|
| 2936 | }
|
---|
| 2937 | }
|
---|
| 2938 |
|
---|
[477] | 2939 |
|
---|
[1570] | 2940 | void BspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 2941 | const int maxViewCells,
|
---|
| 2942 | const bool sortViewCells,
|
---|
| 2943 | const bool exportPvs,
|
---|
| 2944 | const bool exportRays,
|
---|
| 2945 | const int maxRays,
|
---|
| 2946 | const string prefix,
|
---|
| 2947 | VssRayContainer *visRays)
|
---|
[440] | 2948 | {
|
---|
[1570] | 2949 | if (sortViewCells)
|
---|
| 2950 | { // sort view cells to visualize the largest view cells
|
---|
| 2951 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 2952 | }
|
---|
[440] | 2953 |
|
---|
[1545] | 2954 | //////////
|
---|
[1570] | 2955 | //-- some view cells for output
|
---|
[503] | 2956 |
|
---|
[1570] | 2957 | ViewCell::NewMail();
|
---|
| 2958 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
| 2959 |
|
---|
| 2960 | for (int i = 0; i < limit; ++ i)
|
---|
| 2961 | {
|
---|
| 2962 | const int idx = sortViewCells ? (int)RandomValue(0, (float)mViewCells.size() - 0.5f) : i;
|
---|
| 2963 | ViewCell *vc = mViewCells[idx];
|
---|
[503] | 2964 |
|
---|
[1570] | 2965 | if (vc->Mailed() || vc->GetId() == OUT_OF_BOUNDS_ID)
|
---|
| 2966 | continue;
|
---|
[587] | 2967 |
|
---|
[1570] | 2968 | vc->Mail();
|
---|
[503] | 2969 |
|
---|
[1570] | 2970 | ObjectPvs pvs;
|
---|
| 2971 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
[582] | 2972 |
|
---|
[1571] | 2973 | char s[64]; sprintf(s, "%sviewcell-%04d.wrl", prefix.c_str(), i);
|
---|
[1570] | 2974 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 2975 |
|
---|
| 2976 | cout << "view cell " << idx << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc) << endl;
|
---|
[582] | 2977 |
|
---|
[1570] | 2978 | if (exportRays)
|
---|
| 2979 | {
|
---|
| 2980 | ////////////
|
---|
| 2981 | //-- export rays piercing this view cell
|
---|
[469] | 2982 |
|
---|
[1571] | 2983 | // use rays stored with the view cells
|
---|
| 2984 | VssRayContainer vcRays, vcRays2, vcRays3;
|
---|
[1570] | 2985 | VssRayContainer collectRays;
|
---|
| 2986 |
|
---|
| 2987 | // collect initial view cells
|
---|
| 2988 | ViewCellContainer leaves;
|
---|
| 2989 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 2990 |
|
---|
| 2991 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 2992 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 2993 | {
|
---|
[1571] | 2994 | // prepare some rays for output
|
---|
| 2995 | VssRayContainer::const_iterator rit, rit_end = (*vit)->mVssRays.end();
|
---|
| 2996 | for (rit = (*vit)->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
[1570] | 2997 | {
|
---|
| 2998 | collectRays.push_back(*rit);
|
---|
| 2999 | }
|
---|
| 3000 | }
|
---|
| 3001 |
|
---|
| 3002 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
[1571] | 3003 |
|
---|
[1570] | 3004 | // prepare some rays for output
|
---|
| 3005 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 3006 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
[477] | 3007 | {
|
---|
[1570] | 3008 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 3009 | if (p < raysOut)
|
---|
[587] | 3010 | {
|
---|
[1571] | 3011 | if ((*rit)->mFlags & VssRay::BorderSample)
|
---|
[1580] | 3012 | {
|
---|
[1571] | 3013 | vcRays.push_back(*rit);
|
---|
[1580] | 3014 | }
|
---|
[1571] | 3015 | else if ((*rit)->mFlags & VssRay::ReverseSample)
|
---|
| 3016 | vcRays2.push_back(*rit);
|
---|
| 3017 | else
|
---|
| 3018 | vcRays3.push_back(*rit);
|
---|
| 3019 |
|
---|
[587] | 3020 | }
|
---|
[477] | 3021 | }
|
---|
[1571] | 3022 |
|
---|
| 3023 | exporter->ExportRays(vcRays, RgbColor(1, 0, 0));
|
---|
| 3024 | exporter->ExportRays(vcRays2, RgbColor(0, 1, 0));
|
---|
| 3025 | exporter->ExportRays(vcRays3, RgbColor(1, 1, 1));
|
---|
[477] | 3026 | }
|
---|
[1570] | 3027 |
|
---|
| 3028 | ////////////////
|
---|
| 3029 | //-- export view cell geometry
|
---|
[587] | 3030 |
|
---|
[478] | 3031 | exporter->SetWireframe();
|
---|
[477] | 3032 |
|
---|
[478] | 3033 | Material m;//= RandomMaterial();
|
---|
| 3034 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3035 | exporter->SetForcedMaterial(m);
|
---|
[477] | 3036 |
|
---|
[1416] | 3037 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[478] | 3038 | exporter->SetFilled();
|
---|
[469] | 3039 |
|
---|
[1570] | 3040 | if (exportPvs)
|
---|
[478] | 3041 | {
|
---|
[1570] | 3042 | Intersectable::NewMail();
|
---|
| 3043 | ObjectPvsMap::const_iterator oit, oit_end = pvs.mEntries.end();
|
---|
[1571] | 3044 |
|
---|
[1570] | 3045 | // output PVS of view cell
|
---|
| 3046 | for (oit = pvs.mEntries.begin(); oit != oit_end; ++ oit)
|
---|
| 3047 | {
|
---|
| 3048 | Intersectable *intersect = (*oit).first;
|
---|
| 3049 |
|
---|
| 3050 | if (!intersect->Mailed())
|
---|
| 3051 | {
|
---|
| 3052 | intersect->Mail();
|
---|
[1571] | 3053 |
|
---|
[1570] | 3054 | m = RandomMaterial();
|
---|
| 3055 | exporter->SetForcedMaterial(m);
|
---|
| 3056 | exporter->ExportIntersectable(intersect);
|
---|
| 3057 | }
|
---|
[503] | 3058 | }
|
---|
[1570] | 3059 | cout << endl;
|
---|
[477] | 3060 | }
|
---|
[1570] | 3061 |
|
---|
[478] | 3062 | DEL_PTR(exporter);
|
---|
| 3063 | cout << "finished" << endl;
|
---|
[477] | 3064 | }
|
---|
[440] | 3065 | }
|
---|
| 3066 |
|
---|
[441] | 3067 |
|
---|
[693] | 3068 | void BspViewCellsManager::TestSubdivision()
|
---|
| 3069 | {
|
---|
| 3070 | ViewCellContainer leaves;
|
---|
| 3071 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 3072 |
|
---|
| 3073 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3074 |
|
---|
| 3075 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 3076 | float subdivVol = 0;
|
---|
| 3077 | float newVol = 0;
|
---|
| 3078 |
|
---|
| 3079 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 3080 | {
|
---|
| 3081 | BspNodeGeometry geom;
|
---|
[1551] | 3082 | mBspTree->ConstructGeometry(*it, geom);
|
---|
[693] | 3083 |
|
---|
| 3084 | const float lVol = geom.GetVolume();
|
---|
| 3085 | newVol += lVol;
|
---|
| 3086 | subdivVol += (*it)->GetVolume();
|
---|
[694] | 3087 |
|
---|
[1551] | 3088 | const float thres = 0.9f;
|
---|
[694] | 3089 | if ((lVol < ((*it)->GetVolume() * thres)) ||
|
---|
| 3090 | (lVol * thres > ((*it)->GetVolume())))
|
---|
| 3091 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 3092 | }
|
---|
| 3093 |
|
---|
| 3094 | Debug << "exact volume: " << vol << endl;
|
---|
| 3095 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 3096 | Debug << "new volume: " << newVol << endl;
|
---|
| 3097 | }
|
---|
| 3098 |
|
---|
| 3099 |
|
---|
[580] | 3100 | void BspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3101 | ViewCell *vc,
|
---|
[1416] | 3102 | const AxisAlignedBox3 *sceneBox,
|
---|
| 3103 | const AxisAlignedPlane *clipPlane
|
---|
[1570] | 3104 | ) const
|
---|
[1557] | 3105 | {
|
---|
[660] | 3106 | if (clipPlane)
|
---|
[591] | 3107 | {
|
---|
[1047] | 3108 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 3109 |
|
---|
[726] | 3110 | ViewCellContainer leaves;
|
---|
| 3111 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3112 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[591] | 3113 |
|
---|
[726] | 3114 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[681] | 3115 | {
|
---|
[726] | 3116 | BspNodeGeometry geom;
|
---|
[681] | 3117 | BspNodeGeometry front;
|
---|
| 3118 | BspNodeGeometry back;
|
---|
[591] | 3119 |
|
---|
[1551] | 3120 | mBspTree->ConstructGeometry(*it, geom);
|
---|
[681] | 3121 |
|
---|
[1563] | 3122 | const float eps = 0.0001f;
|
---|
[1047] | 3123 | const int cf = geom.Side(plane, eps);
|
---|
[726] | 3124 |
|
---|
| 3125 | if (cf == -1)
|
---|
| 3126 | {
|
---|
| 3127 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 3128 | }
|
---|
| 3129 | else if (cf == 0)
|
---|
| 3130 | {
|
---|
| 3131 | geom.SplitGeometry(front,
|
---|
| 3132 | back,
|
---|
[1047] | 3133 | plane,
|
---|
[726] | 3134 | mViewSpaceBox,
|
---|
| 3135 | eps);
|
---|
[1563] | 3136 |
|
---|
[726] | 3137 | if (back.Valid())
|
---|
[1563] | 3138 | {
|
---|
[726] | 3139 | exporter->ExportPolygons(back.GetPolys());
|
---|
| 3140 | }
|
---|
| 3141 | }
|
---|
[681] | 3142 | }
|
---|
[591] | 3143 | }
|
---|
| 3144 | else
|
---|
| 3145 | {
|
---|
[1563] | 3146 | // export mesh if available
|
---|
| 3147 | // TODO: some bug here?
|
---|
| 3148 | if (1 && vc->GetMesh())
|
---|
| 3149 | {
|
---|
| 3150 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 3151 | }
|
---|
| 3152 | else
|
---|
| 3153 | {
|
---|
| 3154 | BspNodeGeometry geom;
|
---|
| 3155 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3156 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 3157 | }
|
---|
[591] | 3158 | }
|
---|
[482] | 3159 | }
|
---|
| 3160 |
|
---|
[503] | 3161 |
|
---|
| 3162 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3163 | {
|
---|
[1551] | 3164 | // note: should previous mesh be deleted (via mesh manager?)
|
---|
[587] | 3165 | BspNodeGeometry geom;
|
---|
| 3166 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 3167 |
|
---|
[1001] | 3168 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[726] | 3169 |
|
---|
[840] | 3170 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
[587] | 3171 | vc->SetMesh(mesh);
|
---|
[503] | 3172 | }
|
---|
| 3173 |
|
---|
[551] | 3174 |
|
---|
[587] | 3175 | void BspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 3176 | const bool createMesh)
|
---|
[502] | 3177 | {
|
---|
[587] | 3178 | float area = 0;
|
---|
| 3179 | float volume = 0;
|
---|
[572] | 3180 |
|
---|
[587] | 3181 | ViewCellContainer leaves;
|
---|
| 3182 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 3183 |
|
---|
| 3184 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3185 |
|
---|
[693] | 3186 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[587] | 3187 | {
|
---|
| 3188 | BspNodeGeometry geom;
|
---|
| 3189 |
|
---|
[1551] | 3190 | mBspTree->ConstructGeometry(*it, geom);
|
---|
| 3191 |
|
---|
[719] | 3192 | const float lVol = geom.GetVolume();
|
---|
| 3193 | const float lArea = geom.GetArea();
|
---|
[693] | 3194 |
|
---|
| 3195 | area += lArea;
|
---|
| 3196 | volume += lVol;
|
---|
[1551] | 3197 |
|
---|
| 3198 | CreateMesh(*it);
|
---|
[587] | 3199 | }
|
---|
| 3200 |
|
---|
| 3201 | viewCell->SetVolume(volume);
|
---|
| 3202 | viewCell->SetArea(area);
|
---|
[502] | 3203 | }
|
---|
| 3204 |
|
---|
[580] | 3205 |
|
---|
[879] | 3206 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[580] | 3207 | {
|
---|
[1021] | 3208 | if (!ViewCellsConstructed())
|
---|
[1545] | 3209 | {
|
---|
[587] | 3210 | return NULL;
|
---|
[1545] | 3211 | }
|
---|
[587] | 3212 | if (!mViewSpaceBox.IsInside(point))
|
---|
[1545] | 3213 | {
|
---|
[587] | 3214 | return NULL;
|
---|
[1545] | 3215 | }
|
---|
[587] | 3216 | return mBspTree->GetViewCell(point);
|
---|
[580] | 3217 | }
|
---|
| 3218 |
|
---|
| 3219 |
|
---|
[587] | 3220 | void BspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3221 | vector<MergeCandidate> &candidates)
|
---|
| 3222 | {
|
---|
| 3223 | cout << "collecting merge candidates ... " << endl;
|
---|
| 3224 |
|
---|
| 3225 | if (mUseRaysForMerge)
|
---|
| 3226 | {
|
---|
| 3227 | mBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 3228 | }
|
---|
| 3229 | else
|
---|
| 3230 | {
|
---|
| 3231 | vector<BspLeaf *> leaves;
|
---|
| 3232 | mBspTree->CollectLeaves(leaves);
|
---|
| 3233 | mBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 3234 | }
|
---|
| 3235 |
|
---|
| 3236 | cout << "fininshed collecting candidates" << endl;
|
---|
| 3237 | }
|
---|
| 3238 |
|
---|
| 3239 |
|
---|
[440] | 3240 |
|
---|
[1047] | 3241 | bool BspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 3242 | const bool exportPvs,
|
---|
| 3243 | const ObjectContainer &objects)
|
---|
[590] | 3244 | {
|
---|
[1551] | 3245 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
| 3246 | {
|
---|
| 3247 | return false;
|
---|
| 3248 | }
|
---|
| 3249 |
|
---|
[590] | 3250 | cout << "exporting view cells to xml ... ";
|
---|
[503] | 3251 |
|
---|
[1551] | 3252 | OUT_STREAM stream(filename.c_str());
|
---|
| 3253 |
|
---|
[590] | 3254 | // for output we need unique ids for each view cell
|
---|
| 3255 | CreateUniqueViewCellIds();
|
---|
[503] | 3256 |
|
---|
[590] | 3257 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
[975] | 3258 | stream << "<VisibilitySolution>" << endl;
|
---|
[590] | 3259 |
|
---|
[1551] | 3260 | if (exportPvs)
|
---|
| 3261 | {
|
---|
| 3262 | //////////
|
---|
| 3263 | //-- export bounding boxes: they are used to identify the objects from the pvs and
|
---|
| 3264 | //-- assign them to the entities in the rendering engine
|
---|
[590] | 3265 |
|
---|
[1551] | 3266 | stream << "<BoundingBoxes>" << endl;
|
---|
| 3267 | ObjectContainer::const_iterator oit, oit_end = objects.end();
|
---|
[610] | 3268 |
|
---|
[1551] | 3269 | for (oit = objects.begin(); oit != oit_end; ++ oit)
|
---|
| 3270 | {
|
---|
[1563] | 3271 | const AxisAlignedBox3 box = (*oit)->GetBox();
|
---|
[1551] | 3272 |
|
---|
[1563] | 3273 | stream << "<BoundingBox" << " id=\"" << (*oit)->GetId() << "\""
|
---|
[1551] | 3274 | << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
|
---|
| 3275 | << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
|
---|
| 3276 | }
|
---|
[590] | 3277 |
|
---|
[1551] | 3278 | stream << "</BoundingBoxes>" << endl;
|
---|
| 3279 | }
|
---|
| 3280 |
|
---|
| 3281 | ///////////
|
---|
| 3282 | //-- export the view cells and the pvs
|
---|
| 3283 |
|
---|
| 3284 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 3285 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 3286 |
|
---|
| 3287 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 3288 |
|
---|
[590] | 3289 | stream << "</ViewCells>" << endl;
|
---|
| 3290 |
|
---|
[1551] | 3291 | /////////////
|
---|
| 3292 | //-- export the view space hierarchy
|
---|
| 3293 | stream << "<ViewSpaceHierarchy type=\"bsp\""
|
---|
| 3294 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 3295 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
| 3296 |
|
---|
[590] | 3297 | mBspTree->Export(stream);
|
---|
| 3298 |
|
---|
[1551] | 3299 | // end tags
|
---|
| 3300 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[975] | 3301 | stream << "</VisibilitySolution>" << endl;
|
---|
[590] | 3302 |
|
---|
[1551] | 3303 | stream.close();
|
---|
[590] | 3304 | cout << "finished" << endl;
|
---|
[1551] | 3305 |
|
---|
[590] | 3306 | return true;
|
---|
| 3307 | }
|
---|
| 3308 |
|
---|
| 3309 |
|
---|
[1545] | 3310 | ViewCell *BspViewCellsManager::ConstructDummyMergeTree(BspNode *root)
|
---|
| 3311 | {
|
---|
| 3312 | ViewCellInterior *vcRoot = new ViewCellInterior();
|
---|
| 3313 |
|
---|
| 3314 | // evaluate merge cost for priority traversal
|
---|
| 3315 | const float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 3316 | vcRoot->SetMergeCost(mergeCost);
|
---|
| 3317 |
|
---|
| 3318 | float volume = 0;
|
---|
| 3319 | vector<BspLeaf *> leaves;
|
---|
| 3320 | mBspTree->CollectLeaves(leaves);
|
---|
| 3321 | vector<BspLeaf *>::const_iterator lit, lit_end = leaves.end();
|
---|
[1548] | 3322 | ViewCell::NewMail();
|
---|
| 3323 |
|
---|
[1545] | 3324 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
| 3325 | {
|
---|
| 3326 | BspLeaf *leaf = *lit;
|
---|
| 3327 | ViewCell *vc = leaf->GetViewCell();
|
---|
| 3328 |
|
---|
[1548] | 3329 | if (!vc->Mailed())
|
---|
| 3330 | {
|
---|
| 3331 | vc->Mail();
|
---|
| 3332 | vc->SetMergeCost(0.0f);
|
---|
| 3333 | vcRoot->SetupChildLink(vc);
|
---|
[1545] | 3334 |
|
---|
[1548] | 3335 | volume += vc->GetVolume();
|
---|
| 3336 | volume += vc->GetVolume();
|
---|
| 3337 | vcRoot->SetVolume(volume);
|
---|
| 3338 | }
|
---|
[1545] | 3339 | }
|
---|
| 3340 |
|
---|
| 3341 | return vcRoot;
|
---|
| 3342 | }
|
---|
| 3343 |
|
---|
| 3344 |
|
---|
[650] | 3345 | ViewCell *BspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[610] | 3346 | {
|
---|
[752] | 3347 | // terminate recursion
|
---|
[650] | 3348 | if (root->IsLeaf())
|
---|
| 3349 | {
|
---|
[752] | 3350 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 3351 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 3352 | return leaf->GetViewCell();
|
---|
[650] | 3353 | }
|
---|
| 3354 |
|
---|
| 3355 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 3356 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 3357 |
|
---|
[752] | 3358 | // evaluate merge cost for priority traversal
|
---|
[650] | 3359 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 3360 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[649] | 3361 |
|
---|
[650] | 3362 | float volume = 0;
|
---|
[649] | 3363 |
|
---|
[650] | 3364 | BspNode *front = interior->GetFront();
|
---|
| 3365 | BspNode *back = interior->GetBack();
|
---|
[649] | 3366 |
|
---|
[752] | 3367 |
|
---|
[1545] | 3368 | ////////////
|
---|
[752] | 3369 | //-- recursivly compute child hierarchies
|
---|
[1545] | 3370 |
|
---|
[650] | 3371 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 3372 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 3373 |
|
---|
[752] | 3374 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 3375 | viewCellInterior->SetupChildLink(frontVc);
|
---|
[610] | 3376 |
|
---|
[650] | 3377 | volume += backVc->GetVolume();
|
---|
| 3378 | volume += frontVc->GetVolume();
|
---|
[649] | 3379 |
|
---|
[650] | 3380 | viewCellInterior->SetVolume(volume);
|
---|
[649] | 3381 |
|
---|
[650] | 3382 | return viewCellInterior;
|
---|
[610] | 3383 | }
|
---|
| 3384 |
|
---|
[650] | 3385 |
|
---|
[590] | 3386 | /************************************************************************/
|
---|
| 3387 | /* KdViewCellsManager implementation */
|
---|
| 3388 | /************************************************************************/
|
---|
| 3389 |
|
---|
| 3390 |
|
---|
| 3391 |
|
---|
[1264] | 3392 | KdViewCellsManager::KdViewCellsManager(ViewCellsTree *vcTree, KdTree *kdTree):
|
---|
| 3393 | ViewCellsManager(vcTree), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
[440] | 3394 | {
|
---|
| 3395 | }
|
---|
| 3396 |
|
---|
[605] | 3397 |
|
---|
[471] | 3398 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3399 | {
|
---|
[479] | 3400 | // compute view cell area / volume as subsititute for probability
|
---|
[605] | 3401 | if (0)
|
---|
| 3402 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
| 3403 | else
|
---|
| 3404 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
[468] | 3405 | }
|
---|
| 3406 |
|
---|
| 3407 |
|
---|
| 3408 |
|
---|
[479] | 3409 |
|
---|
[480] | 3410 | void KdViewCellsManager::CollectViewCells()
|
---|
| 3411 | {
|
---|
| 3412 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
| 3413 | }
|
---|
[479] | 3414 |
|
---|
[519] | 3415 |
|
---|
[574] | 3416 | int KdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 3417 | const VssRayContainer &rays)
|
---|
[440] | 3418 | {
|
---|
[441] | 3419 | // if view cells already constructed
|
---|
[440] | 3420 | if (ViewCellsConstructed())
|
---|
| 3421 | return 0;
|
---|
[441] | 3422 |
|
---|
[440] | 3423 | mKdTree->Construct();
|
---|
| 3424 |
|
---|
[480] | 3425 | mTotalAreaValid = false;
|
---|
[469] | 3426 | // create the view cells
|
---|
| 3427 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
[480] | 3428 | // cast rays
|
---|
[574] | 3429 | ComputeSampleContributions(rays, true, false);
|
---|
[480] | 3430 |
|
---|
[479] | 3431 | EvaluateViewCellsStats();
|
---|
[660] | 3432 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[469] | 3433 |
|
---|
[440] | 3434 | return 0;
|
---|
| 3435 | }
|
---|
| 3436 |
|
---|
[587] | 3437 |
|
---|
[440] | 3438 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
| 3439 | {
|
---|
| 3440 | return mKdTree->GetRoot() != NULL;
|
---|
| 3441 | }
|
---|
| 3442 |
|
---|
[1020] | 3443 |
|
---|
[503] | 3444 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[466] | 3445 | const VssRayContainer &rays)
|
---|
[440] | 3446 | {
|
---|
| 3447 | return 0;
|
---|
| 3448 | }
|
---|
| 3449 |
|
---|
[1020] | 3450 |
|
---|
[1570] | 3451 | void KdViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 3452 | const int maxViewCells,
|
---|
| 3453 | const bool sortViewCells,
|
---|
| 3454 | const bool exportPvs,
|
---|
| 3455 | const bool exportRays,
|
---|
| 3456 | const int maxRays,
|
---|
| 3457 | const string prefix,
|
---|
| 3458 | VssRayContainer *visRays)
|
---|
| 3459 | {
|
---|
| 3460 | // TODO
|
---|
| 3461 | }
|
---|
| 3462 |
|
---|
| 3463 |
|
---|
[440] | 3464 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 3465 | const VssRayContainer &sampleRays)
|
---|
[440] | 3466 | {
|
---|
[441] | 3467 | if (!ViewCellsConstructed())
|
---|
| 3468 | return;
|
---|
| 3469 |
|
---|
[469] | 3470 | // using view cells instead of the kd PVS of objects
|
---|
| 3471 | const bool useViewCells = true;
|
---|
| 3472 | bool exportRays = false;
|
---|
[440] | 3473 |
|
---|
| 3474 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
[469] | 3475 | const int pvsOut = min((int)objects.size(), 10);
|
---|
[466] | 3476 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
[440] | 3477 |
|
---|
[469] | 3478 | if (useViewCells)
|
---|
[440] | 3479 | {
|
---|
[469] | 3480 | const int leafOut = 10;
|
---|
[503] | 3481 |
|
---|
[469] | 3482 | ViewCell::NewMail();
|
---|
[503] | 3483 |
|
---|
[469] | 3484 | //-- some rays for output
|
---|
| 3485 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
| 3486 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
| 3487 |
|
---|
| 3488 | //-- some random view cells and rays for output
|
---|
| 3489 | vector<KdLeaf *> kdLeaves;
|
---|
[503] | 3490 |
|
---|
[469] | 3491 | for (int i = 0; i < leafOut; ++ i)
|
---|
| 3492 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
[503] | 3493 |
|
---|
[469] | 3494 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
[440] | 3495 | {
|
---|
[469] | 3496 | KdLeaf *leaf = kdLeaves[i];
|
---|
| 3497 | RayContainer vcRays;
|
---|
[503] | 3498 |
|
---|
[469] | 3499 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 3500 | #if 0
|
---|
[469] | 3501 | // check whether we can add the current ray to the output rays
|
---|
[503] | 3502 | for (int k = 0; k < raysOut; ++ k)
|
---|
[440] | 3503 | {
|
---|
[469] | 3504 | Ray *ray = sampleRays[k];
|
---|
[503] | 3505 |
|
---|
[469] | 3506 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
| 3507 | {
|
---|
| 3508 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
[503] | 3509 |
|
---|
| 3510 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
[469] | 3511 | {
|
---|
| 3512 | vcRays.push_back(ray);
|
---|
| 3513 | }
|
---|
| 3514 | }
|
---|
[479] | 3515 | }
|
---|
[503] | 3516 | #endif
|
---|
[469] | 3517 | Intersectable::NewMail();
|
---|
[503] | 3518 |
|
---|
[469] | 3519 | ViewCell *vc = leaf->mViewCell;
|
---|
[1570] | 3520 | char str[64]; sprintf(str, "viewcell%04d.wrl", i);
|
---|
[503] | 3521 |
|
---|
[1570] | 3522 | Exporter *exporter = Exporter::GetExporter(str);
|
---|
[469] | 3523 | exporter->SetFilled();
|
---|
| 3524 |
|
---|
| 3525 | exporter->SetWireframe();
|
---|
| 3526 | //exporter->SetFilled();
|
---|
[503] | 3527 |
|
---|
[469] | 3528 | Material m;//= RandomMaterial();
|
---|
| 3529 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
| 3530 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3531 |
|
---|
[469] | 3532 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
| 3533 | exporter->ExportBox(box);
|
---|
| 3534 |
|
---|
| 3535 | // export rays piercing this view cell
|
---|
[503] | 3536 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
| 3537 |
|
---|
[469] | 3538 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3539 | exporter->SetForcedMaterial(m);
|
---|
[503] | 3540 |
|
---|
[469] | 3541 | // exporter->SetWireframe();
|
---|
| 3542 | exporter->SetFilled();
|
---|
[503] | 3543 |
|
---|
[469] | 3544 | ObjectPvsMap::iterator it, it_end = vc->GetPvs().mEntries.end();
|
---|
[752] | 3545 | // -- output PVS of view cell
|
---|
[1189] | 3546 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[469] | 3547 | {
|
---|
| 3548 | Intersectable *intersect = (*it).first;
|
---|
| 3549 | if (!intersect->Mailed())
|
---|
| 3550 | {
|
---|
| 3551 | exporter->ExportIntersectable(intersect);
|
---|
| 3552 | intersect->Mail();
|
---|
[503] | 3553 | }
|
---|
[440] | 3554 | }
|
---|
[503] | 3555 |
|
---|
[469] | 3556 | DEL_PTR(exporter);
|
---|
| 3557 | cout << "finished" << endl;
|
---|
[440] | 3558 | }
|
---|
[469] | 3559 |
|
---|
| 3560 | DEL_PTR(rays);
|
---|
[440] | 3561 | }
|
---|
[469] | 3562 | else // using kd PVS of objects
|
---|
| 3563 | {
|
---|
| 3564 | for (int i = 0; i < limit; ++ i)
|
---|
| 3565 | {
|
---|
| 3566 | VssRay *ray = sampleRays[i];
|
---|
[503] | 3567 |
|
---|
[469] | 3568 | // check whether we can add this to the rays
|
---|
[503] | 3569 | for (int j = 0; j < pvsOut; j++)
|
---|
[469] | 3570 | {
|
---|
| 3571 | if (objects[j] == ray->mTerminationObject)
|
---|
| 3572 | {
|
---|
| 3573 | rays[j].push_back(ray);
|
---|
| 3574 | }
|
---|
| 3575 | }
|
---|
| 3576 | }
|
---|
[440] | 3577 |
|
---|
[503] | 3578 | if (exportRays)
|
---|
[469] | 3579 | {
|
---|
| 3580 | Exporter *exporter = NULL;
|
---|
| 3581 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
| 3582 | exporter->SetWireframe();
|
---|
| 3583 | exporter->ExportKdTree(*mKdTree);
|
---|
[503] | 3584 |
|
---|
[728] | 3585 | for (i = 0; i < pvsOut; i++)
|
---|
[469] | 3586 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
| 3587 |
|
---|
| 3588 | exporter->SetFilled();
|
---|
| 3589 | delete exporter;
|
---|
| 3590 | }
|
---|
[440] | 3591 |
|
---|
[503] | 3592 | for (int k=0; k < pvsOut; k++)
|
---|
[469] | 3593 | {
|
---|
| 3594 | Intersectable *object = objects[k];
|
---|
[1570] | 3595 | char str[64]; sprintf(str, "viewcell%04d.wrl", i);
|
---|
[440] | 3596 |
|
---|
[1570] | 3597 | Exporter *exporter = Exporter::GetExporter(str);
|
---|
[469] | 3598 | exporter->SetWireframe();
|
---|
[503] | 3599 |
|
---|
[1233] | 3600 | KdPvsMap::iterator kit = object->mKdPvs.mEntries.begin();
|
---|
[469] | 3601 | Intersectable::NewMail();
|
---|
[503] | 3602 |
|
---|
[469] | 3603 | // avoid adding the object to the list
|
---|
| 3604 | object->Mail();
|
---|
| 3605 | ObjectContainer visibleObjects;
|
---|
[503] | 3606 |
|
---|
[1233] | 3607 | for (; kit != object->mKdPvs.mEntries.end(); i++)
|
---|
[469] | 3608 | {
|
---|
[1233] | 3609 | KdNode *node = (*kit).first;
|
---|
[469] | 3610 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
[503] | 3611 |
|
---|
[469] | 3612 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
| 3613 | }
|
---|
[503] | 3614 |
|
---|
[469] | 3615 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
| 3616 | exporter->SetFilled();
|
---|
[503] | 3617 |
|
---|
[469] | 3618 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
| 3619 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
[503] | 3620 |
|
---|
[469] | 3621 | Material m;
|
---|
| 3622 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3623 | exporter->SetForcedMaterial(m);
|
---|
| 3624 | exporter->ExportIntersectable(object);
|
---|
[503] | 3625 |
|
---|
[469] | 3626 | delete exporter;
|
---|
[440] | 3627 | }
|
---|
[503] | 3628 | }
|
---|
[440] | 3629 | }
|
---|
| 3630 |
|
---|
[469] | 3631 |
|
---|
[580] | 3632 | ViewCell *KdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3633 | {
|
---|
| 3634 | return new KdViewCell(mesh);
|
---|
| 3635 | }
|
---|
[482] | 3636 |
|
---|
[580] | 3637 |
|
---|
| 3638 | void KdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3639 | ViewCell *vc,
|
---|
[1416] | 3640 | const AxisAlignedBox3 *sceneBox,
|
---|
| 3641 | const AxisAlignedPlane *clipPlane
|
---|
| 3642 | ) const
|
---|
[482] | 3643 | {
|
---|
[580] | 3644 | ViewCellContainer leaves;
|
---|
| 3645 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3646 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3647 |
|
---|
| 3648 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 3649 | {
|
---|
| 3650 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(*it);
|
---|
[1551] | 3651 | exporter->ExportBox(mKdTree->GetBox(kdVc->mLeaves[0]));
|
---|
[580] | 3652 | }
|
---|
[482] | 3653 | }
|
---|
| 3654 |
|
---|
| 3655 |
|
---|
[440] | 3656 | int KdViewCellsManager::GetType() const
|
---|
| 3657 | {
|
---|
| 3658 | return ViewCellsManager::KD;
|
---|
| 3659 | }
|
---|
| 3660 |
|
---|
| 3661 |
|
---|
[441] | 3662 |
|
---|
[440] | 3663 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
| 3664 | {
|
---|
| 3665 | KdNode *node = leaf;
|
---|
| 3666 |
|
---|
| 3667 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
| 3668 | node = node->mParent;
|
---|
[1176] | 3669 |
|
---|
[440] | 3670 | return node;
|
---|
| 3671 | }
|
---|
| 3672 |
|
---|
[469] | 3673 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 3674 | const Vector3 &termination,
|
---|
| 3675 | ViewCellContainer &viewcells)
|
---|
[466] | 3676 | {
|
---|
[469] | 3677 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 3678 | }
|
---|
| 3679 |
|
---|
[469] | 3680 |
|
---|
[503] | 3681 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3682 | {
|
---|
[551] | 3683 | // TODO
|
---|
[503] | 3684 | }
|
---|
| 3685 |
|
---|
[580] | 3686 |
|
---|
| 3687 |
|
---|
| 3688 | void KdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3689 | vector<MergeCandidate> &candidates)
|
---|
| 3690 | {
|
---|
| 3691 | // TODO
|
---|
| 3692 | }
|
---|
| 3693 |
|
---|
[1021] | 3694 |
|
---|
| 3695 |
|
---|
[503] | 3696 | /**************************************************************************/
|
---|
| 3697 | /* VspBspViewCellsManager implementation */
|
---|
| 3698 | /**************************************************************************/
|
---|
[482] | 3699 |
|
---|
[503] | 3700 |
|
---|
[1264] | 3701 | VspBspViewCellsManager::VspBspViewCellsManager(ViewCellsTree *vcTree, VspBspTree *vspBspTree):
|
---|
| 3702 | ViewCellsManager(vcTree), mVspBspTree(vspBspTree)
|
---|
[442] | 3703 | {
|
---|
[1004] | 3704 | Environment::GetSingleton()->GetIntValue("VspBspTree.Construction.samples", mInitialSamples);
|
---|
[478] | 3705 | mVspBspTree->SetViewCellsManager(this);
|
---|
[590] | 3706 | mVspBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[442] | 3707 | }
|
---|
| 3708 |
|
---|
[477] | 3709 |
|
---|
[475] | 3710 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
| 3711 | {
|
---|
| 3712 | }
|
---|
| 3713 |
|
---|
[477] | 3714 |
|
---|
[471] | 3715 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3716 | {
|
---|
[551] | 3717 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
[547] | 3718 | return GetArea(viewCell) / GetAccVcArea();
|
---|
| 3719 | else
|
---|
| 3720 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
[468] | 3721 | }
|
---|
| 3722 |
|
---|
[477] | 3723 |
|
---|
[480] | 3724 | void VspBspViewCellsManager::CollectViewCells()
|
---|
| 3725 | {
|
---|
[1545] | 3726 | // view cells tree constructed?
|
---|
[581] | 3727 | if (!ViewCellsTreeConstructed())
|
---|
| 3728 | {
|
---|
[590] | 3729 | mVspBspTree->CollectViewCells(mViewCells, false);
|
---|
[581] | 3730 | }
|
---|
| 3731 | else
|
---|
[1264] | 3732 | {
|
---|
| 3733 | // we can use the view cells tree hierarchy to get the right set
|
---|
[600] | 3734 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[581] | 3735 | }
|
---|
[480] | 3736 | }
|
---|
| 3737 |
|
---|
| 3738 |
|
---|
[1021] | 3739 | void VspBspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3740 | vector<MergeCandidate> &candidates)
|
---|
| 3741 | {
|
---|
| 3742 | cout << "collecting merge candidates ... " << endl;
|
---|
| 3743 |
|
---|
| 3744 | if (mUseRaysForMerge)
|
---|
| 3745 | {
|
---|
| 3746 | mVspBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 3747 | }
|
---|
| 3748 | else
|
---|
| 3749 | {
|
---|
| 3750 | vector<BspLeaf *> leaves;
|
---|
| 3751 | mVspBspTree->CollectLeaves(leaves);
|
---|
| 3752 |
|
---|
| 3753 | mVspBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 3754 | }
|
---|
| 3755 |
|
---|
| 3756 | cout << "fininshed collecting candidates" << endl;
|
---|
| 3757 | }
|
---|
| 3758 |
|
---|
| 3759 |
|
---|
[442] | 3760 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
| 3761 | {
|
---|
| 3762 | return mVspBspTree->GetRoot() != NULL;
|
---|
| 3763 | }
|
---|
| 3764 |
|
---|
[462] | 3765 |
|
---|
[442] | 3766 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3767 | {
|
---|
| 3768 | return new BspViewCell(mesh);
|
---|
| 3769 | }
|
---|
| 3770 |
|
---|
[569] | 3771 |
|
---|
[574] | 3772 | int VspBspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[600] | 3773 | const VssRayContainer &rays)
|
---|
[442] | 3774 | {
|
---|
[710] | 3775 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 3776 |
|
---|
[503] | 3777 | // if view cells were already constructed
|
---|
| 3778 | if (ViewCellsConstructed())
|
---|
[1545] | 3779 | {
|
---|
[503] | 3780 | return 0;
|
---|
[1545] | 3781 | }
|
---|
[442] | 3782 |
|
---|
[503] | 3783 | int sampleContributions = 0;
|
---|
| 3784 | VssRayContainer sampleRays;
|
---|
| 3785 |
|
---|
[1545] | 3786 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[503] | 3787 |
|
---|
[660] | 3788 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
[664] | 3789 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
[587] | 3790 |
|
---|
[1545] | 3791 | VssRayContainer savedRays;
|
---|
[487] | 3792 |
|
---|
[1545] | 3793 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 3794 | {
|
---|
| 3795 | VssRayContainer constructionRays;
|
---|
| 3796 |
|
---|
| 3797 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
[485] | 3798 |
|
---|
[1545] | 3799 | Debug << "rays used for initial construction: " << (int)constructionRays.size() << endl;
|
---|
| 3800 | Debug << "rays saved for later use: " << (int)savedRays.size() << endl;
|
---|
| 3801 |
|
---|
[667] | 3802 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
[1221] | 3803 | }
|
---|
[666] | 3804 | else
|
---|
[1221] | 3805 | {
|
---|
[1545] | 3806 | Debug << "rays used for initial construction: " << (int)rays.size() << endl;
|
---|
[667] | 3807 | mVspBspTree->Construct(rays, &mViewSpaceBox);
|
---|
[1221] | 3808 | }
|
---|
[667] | 3809 |
|
---|
[490] | 3810 | // collapse invalid regions
|
---|
[491] | 3811 | cout << "collapsing invalid tree regions ... ";
|
---|
[1545] | 3812 | long startTime = GetTime();
|
---|
| 3813 |
|
---|
[1002] | 3814 | const int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
[587] | 3815 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 3816 | << " seconds" << endl;
|
---|
| 3817 |
|
---|
[495] | 3818 | cout << "finished" << endl;
|
---|
[503] | 3819 |
|
---|
[1444] | 3820 | /////////////////
|
---|
[1221] | 3821 | //-- stats after construction
|
---|
| 3822 |
|
---|
[660] | 3823 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
| 3824 |
|
---|
[480] | 3825 | ResetViewCells();
|
---|
[660] | 3826 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[503] | 3827 |
|
---|
[491] | 3828 |
|
---|
[1444] | 3829 | //////////////////////
|
---|
[1545] | 3830 | //-- recast the rest of the rays
|
---|
[1570] | 3831 |
|
---|
[495] | 3832 | startTime = GetTime();
|
---|
[503] | 3833 |
|
---|
[491] | 3834 | cout << "Computing remaining ray contributions ... ";
|
---|
[605] | 3835 |
|
---|
| 3836 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 3837 | ComputeSampleContributions(savedRays, true, false);
|
---|
[752] | 3838 |
|
---|
[491] | 3839 | cout << "finished" << endl;
|
---|
| 3840 |
|
---|
[503] | 3841 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[485] | 3842 | << " secs" << endl;
|
---|
[442] | 3843 |
|
---|
[485] | 3844 | cout << "construction finished" << endl;
|
---|
[503] | 3845 |
|
---|
[719] | 3846 | if (0)
|
---|
[1545] | 3847 | { ////////
|
---|
[1077] | 3848 | //-- real meshes are contructed at this stage
|
---|
[719] | 3849 | cout << "finalizing view cells ... ";
|
---|
| 3850 | FinalizeViewCells(true);
|
---|
| 3851 | cout << "finished" << endl;
|
---|
| 3852 | }
|
---|
| 3853 |
|
---|
[442] | 3854 | return sampleContributions;
|
---|
| 3855 | }
|
---|
| 3856 |
|
---|
[489] | 3857 |
|
---|
[503] | 3858 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
| 3859 | const ObjectContainer &objects)
|
---|
[475] | 3860 | {
|
---|
[442] | 3861 | int vcSize = 0;
|
---|
| 3862 | int pvsSize = 0;
|
---|
| 3863 |
|
---|
[650] | 3864 | //-- merge view cells
|
---|
| 3865 | cout << "starting merge using " << mPostProcessSamples << " samples ... " << endl;
|
---|
| 3866 | long startTime = GetTime();
|
---|
| 3867 |
|
---|
| 3868 |
|
---|
[597] | 3869 | if (mMergeViewCells)
|
---|
| 3870 | {
|
---|
| 3871 | // TODO: should be done BEFORE the ray casting
|
---|
[710] | 3872 | // compute tree by merging the nodes based on cost heuristics
|
---|
[650] | 3873 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
| 3874 | }
|
---|
| 3875 | else
|
---|
| 3876 | {
|
---|
[710] | 3877 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
| 3878 | ViewCell *root = ConstructSpatialMergeTree(mVspBspTree->GetRoot());
|
---|
| 3879 | mViewCellsTree->SetRoot(root);
|
---|
[752] | 3880 |
|
---|
| 3881 | // compute pvs
|
---|
| 3882 | ObjectPvs pvs;
|
---|
| 3883 | UpdatePvsForEvaluation(root, pvs);
|
---|
[650] | 3884 | }
|
---|
[442] | 3885 |
|
---|
[666] | 3886 | if (1)
|
---|
| 3887 | {
|
---|
| 3888 | char mstats[100];
|
---|
[752] | 3889 | ObjectPvs pvs;
|
---|
| 3890 |
|
---|
[1004] | 3891 | Environment::GetSingleton()->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
[666] | 3892 | mViewCellsTree->ExportStats(mstats);
|
---|
| 3893 | }
|
---|
[485] | 3894 |
|
---|
[650] | 3895 | cout << "merged view cells in "
|
---|
| 3896 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
[503] | 3897 |
|
---|
[650] | 3898 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 3899 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
| 3900 |
|
---|
| 3901 |
|
---|
[1444] | 3902 | //////////////////
|
---|
| 3903 | //-- stats and visualizations
|
---|
| 3904 |
|
---|
[600] | 3905 | int savedColorCode = mColorCode;
|
---|
| 3906 |
|
---|
[660] | 3907 | // get currently active view cell set
|
---|
| 3908 | ResetViewCells();
|
---|
| 3909 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[1444] | 3910 |
|
---|
[667] | 3911 | if (1) // export merged view cells
|
---|
[483] | 3912 | {
|
---|
[600] | 3913 | mColorCode = 0;
|
---|
[744] | 3914 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[660] | 3915 |
|
---|
[485] | 3916 | cout << "exporting view cells after merge ... ";
|
---|
| 3917 |
|
---|
| 3918 | if (exporter)
|
---|
[483] | 3919 | {
|
---|
[600] | 3920 | if (0)
|
---|
| 3921 | exporter->SetWireframe();
|
---|
| 3922 | else
|
---|
| 3923 | exporter->SetFilled();
|
---|
| 3924 |
|
---|
[1416] | 3925 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[600] | 3926 |
|
---|
[485] | 3927 | if (mExportGeometry)
|
---|
[483] | 3928 | {
|
---|
[485] | 3929 | Material m;
|
---|
| 3930 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3931 | exporter->SetForcedMaterial(m);
|
---|
| 3932 | exporter->SetFilled();
|
---|
[442] | 3933 |
|
---|
[485] | 3934 | exporter->ExportGeometry(objects);
|
---|
[442] | 3935 | }
|
---|
[485] | 3936 |
|
---|
[600] | 3937 | delete exporter;
|
---|
| 3938 | }
|
---|
| 3939 | cout << "finished" << endl;
|
---|
| 3940 | }
|
---|
| 3941 |
|
---|
[1404] | 3942 | if (1)
|
---|
[600] | 3943 | {
|
---|
[1416] | 3944 | // use pvs size for color coding
|
---|
| 3945 | mColorCode = 1;
|
---|
[744] | 3946 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
[1176] | 3947 |
|
---|
[600] | 3948 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 3949 |
|
---|
| 3950 | if (exporter)
|
---|
| 3951 | {
|
---|
[1416] | 3952 | exporter->SetFilled();
|
---|
[598] | 3953 |
|
---|
[1416] | 3954 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[598] | 3955 |
|
---|
[600] | 3956 | if (mExportGeometry)
|
---|
| 3957 | {
|
---|
| 3958 | Material m;
|
---|
| 3959 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3960 | exporter->SetForcedMaterial(m);
|
---|
| 3961 | exporter->SetFilled();
|
---|
| 3962 |
|
---|
| 3963 | exporter->ExportGeometry(objects);
|
---|
| 3964 | }
|
---|
| 3965 |
|
---|
[485] | 3966 | delete exporter;
|
---|
[442] | 3967 | }
|
---|
[485] | 3968 | cout << "finished" << endl;
|
---|
[442] | 3969 | }
|
---|
[600] | 3970 |
|
---|
| 3971 | mColorCode = savedColorCode;
|
---|
[503] | 3972 | }
|
---|
[475] | 3973 |
|
---|
[503] | 3974 |
|
---|
[564] | 3975 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays,
|
---|
| 3976 | const ObjectContainer &objects)
|
---|
[503] | 3977 | {
|
---|
[485] | 3978 | mRenderer->RenderScene();
|
---|
[503] | 3979 | SimulationStatistics ss;
|
---|
[485] | 3980 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[1415] | 3981 | Debug << "render time before refine\n\n" << ss << endl;
|
---|
[485] | 3982 |
|
---|
[1414] | 3983 | const long startTime = GetTime();
|
---|
[489] | 3984 | cout << "Refining the merged view cells ... ";
|
---|
[485] | 3985 |
|
---|
| 3986 | // refining the merged view cells
|
---|
[580] | 3987 | const int refined = mViewCellsTree->RefineViewCells(rays, objects);
|
---|
[485] | 3988 |
|
---|
[442] | 3989 | //-- stats and visualizations
|
---|
| 3990 | cout << "finished" << endl;
|
---|
[485] | 3991 | cout << "refined " << refined << " view cells in "
|
---|
[442] | 3992 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 3993 |
|
---|
[485] | 3994 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
[475] | 3995 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
[503] | 3996 | }
|
---|
[495] | 3997 |
|
---|
[517] | 3998 |
|
---|
[503] | 3999 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 4000 | const VssRayContainer &rays)
|
---|
[840] | 4001 | {
|
---|
[503] | 4002 | if (!ViewCellsConstructed())
|
---|
| 4003 | {
|
---|
[517] | 4004 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
[503] | 4005 | return 0;
|
---|
| 4006 | }
|
---|
[520] | 4007 |
|
---|
[609] | 4008 | // view cells already finished before post processing step
|
---|
| 4009 | // (i.e. because they were loaded)
|
---|
[520] | 4010 | if (mViewCellsFinished)
|
---|
[542] | 4011 | {
|
---|
[551] | 4012 | FinalizeViewCells(true);
|
---|
[542] | 4013 | EvaluateViewCellsStats();
|
---|
[577] | 4014 |
|
---|
[517] | 4015 | return 0;
|
---|
[542] | 4016 | }
|
---|
[448] | 4017 |
|
---|
[710] | 4018 | // check if new view cells turned invalid
|
---|
| 4019 | int minPvs, maxPvs;
|
---|
[564] | 4020 |
|
---|
[710] | 4021 | if (0)
|
---|
| 4022 | {
|
---|
| 4023 | minPvs = mMinPvsSize;
|
---|
| 4024 | maxPvs = mMaxPvsSize;
|
---|
| 4025 | }
|
---|
| 4026 | else
|
---|
| 4027 | {
|
---|
[1414] | 4028 | // problem matt: why did I start here from zero?
|
---|
| 4029 | minPvs = 0;
|
---|
[710] | 4030 | maxPvs = mMaxPvsSize;
|
---|
| 4031 | }
|
---|
[720] | 4032 |
|
---|
[710] | 4033 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4034 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4035 |
|
---|
| 4036 | SetValidity(minPvs, maxPvs);
|
---|
| 4037 |
|
---|
[574] | 4038 | // update valid view space according to valid view cells
|
---|
[720] | 4039 | if (0) mVspBspTree->ValidateTree();
|
---|
[542] | 4040 |
|
---|
[720] | 4041 | // area has to be recomputed
|
---|
[574] | 4042 | mTotalAreaValid = false;
|
---|
[517] | 4043 | VssRayContainer postProcessRays;
|
---|
[605] | 4044 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 4045 |
|
---|
[517] | 4046 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
[564] | 4047 |
|
---|
[1414] | 4048 | // should maybe be done here to allow merge working
|
---|
| 4049 | // with area or volume and to correct the rendering statistics
|
---|
[719] | 4050 | if (0) FinalizeViewCells(false);
|
---|
[720] | 4051 |
|
---|
[1444] | 4052 | //////////
|
---|
[597] | 4053 | //-- merge the individual view cells
|
---|
| 4054 | MergeViewCells(postProcessRays, objects);
|
---|
[591] | 4055 |
|
---|
[1444] | 4056 | // refines the merged view cells
|
---|
[720] | 4057 | if (0) RefineViewCells(postProcessRays, objects);
|
---|
[568] | 4058 |
|
---|
[1444] | 4059 |
|
---|
| 4060 | ///////////
|
---|
[660] | 4061 | //-- render simulation after merge + refine
|
---|
[1414] | 4062 |
|
---|
[1415] | 4063 | cout << "\nview cells partition render time before compress" << endl << endl;;
|
---|
[605] | 4064 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 4065 | SimulationStatistics ss;
|
---|
| 4066 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[1486] | 4067 | cout << ss << endl;
|
---|
[1414] | 4068 |
|
---|
[600] | 4069 |
|
---|
[1418] | 4070 | ////////////
|
---|
[600] | 4071 | //-- compression
|
---|
[1586] | 4072 | //#if HAS_TO_BE_REDONE
|
---|
[600] | 4073 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 4074 | {
|
---|
[1586] | 4075 | int pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[600] | 4076 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
| 4077 |
|
---|
[752] | 4078 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[600] | 4079 |
|
---|
[1586] | 4080 | pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[600] | 4081 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
| 4082 | }
|
---|
[1586] | 4083 | //#endif
|
---|
[600] | 4084 |
|
---|
[517] | 4085 | // collapse sibling leaves that share the same view cell
|
---|
[840] | 4086 | if (0) mVspBspTree->CollapseTree();
|
---|
[586] | 4087 |
|
---|
[574] | 4088 | // recompute view cell list and statistics
|
---|
[520] | 4089 | ResetViewCells();
|
---|
| 4090 |
|
---|
[719] | 4091 | // compute final meshes and volume / area
|
---|
| 4092 | if (1) FinalizeViewCells(true);
|
---|
[1444] | 4093 |
|
---|
[508] | 4094 | // write view cells to disc
|
---|
[1486] | 4095 | if (1 && mExportViewCells)
|
---|
[1444] | 4096 | {
|
---|
[840] | 4097 | char filename[100];
|
---|
[1004] | 4098 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
[931] | 4099 | ExportViewCells(filename, mExportPvs, objects);
|
---|
[840] | 4100 | }
|
---|
[517] | 4101 |
|
---|
[503] | 4102 | return 0;
|
---|
[442] | 4103 | }
|
---|
| 4104 |
|
---|
[490] | 4105 |
|
---|
[442] | 4106 | int VspBspViewCellsManager::GetType() const
|
---|
| 4107 | {
|
---|
| 4108 | return VSP_BSP;
|
---|
| 4109 | }
|
---|
| 4110 |
|
---|
| 4111 |
|
---|
[650] | 4112 | ViewCell *VspBspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[609] | 4113 | {
|
---|
[752] | 4114 | // terminate recursion
|
---|
[650] | 4115 | if (root->IsLeaf())
|
---|
| 4116 | {
|
---|
[752] | 4117 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 4118 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 4119 | return leaf->GetViewCell();
|
---|
[650] | 4120 | }
|
---|
| 4121 |
|
---|
[752] | 4122 |
|
---|
[650] | 4123 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 4124 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 4125 |
|
---|
[752] | 4126 | // evaluate merge cost for priority traversal
|
---|
[650] | 4127 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 4128 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[610] | 4129 |
|
---|
[650] | 4130 | float volume = 0;
|
---|
| 4131 |
|
---|
| 4132 | BspNode *front = interior->GetFront();
|
---|
| 4133 | BspNode *back = interior->GetBack();
|
---|
[649] | 4134 |
|
---|
[752] | 4135 |
|
---|
| 4136 | ObjectPvs frontPvs, backPvs;
|
---|
| 4137 |
|
---|
| 4138 | //-- recursivly compute child hierarchies
|
---|
[650] | 4139 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 4140 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 4141 |
|
---|
[752] | 4142 |
|
---|
| 4143 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 4144 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 4145 |
|
---|
| 4146 | volume += backVc->GetVolume();
|
---|
| 4147 | volume += frontVc->GetVolume();
|
---|
| 4148 |
|
---|
| 4149 | viewCellInterior->SetVolume(volume);
|
---|
| 4150 |
|
---|
| 4151 | return viewCellInterior;
|
---|
[609] | 4152 | }
|
---|
| 4153 |
|
---|
| 4154 |
|
---|
[490] | 4155 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 4156 | {
|
---|
| 4157 | if (!ViewCellsConstructed())
|
---|
| 4158 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 4159 |
|
---|
| 4160 | // TODO: set reasonable limit
|
---|
| 4161 | const int limit = 20;
|
---|
| 4162 |
|
---|
| 4163 | for (int i = 0; i < limit; ++ i)
|
---|
| 4164 | {
|
---|
[542] | 4165 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[490] | 4166 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
| 4167 | {
|
---|
| 4168 | return true;
|
---|
| 4169 | }
|
---|
| 4170 | }
|
---|
[997] | 4171 |
|
---|
[490] | 4172 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 4173 | return false;
|
---|
| 4174 | }
|
---|
| 4175 |
|
---|
| 4176 |
|
---|
| 4177 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 4178 | {
|
---|
[1551] | 4179 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 4180 | // validy update in preprocessor for all managers)
|
---|
| 4181 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[570] | 4182 |
|
---|
[1551] | 4183 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
| 4184 | // mVspBspTree->ViewPointValid(viewPoint);
|
---|
[490] | 4185 | }
|
---|
| 4186 |
|
---|
| 4187 |
|
---|
[442] | 4188 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 4189 | const VssRayContainer &sampleRays)
|
---|
[442] | 4190 | {
|
---|
| 4191 | if (!ViewCellsConstructed())
|
---|
| 4192 | return;
|
---|
| 4193 |
|
---|
[485] | 4194 | VssRayContainer visRays;
|
---|
| 4195 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[1416] | 4196 |
|
---|
[1551] | 4197 | if (1)
|
---|
[1047] | 4198 | {
|
---|
[1416] | 4199 | //////////////////
|
---|
| 4200 | //-- export final view cell partition
|
---|
| 4201 |
|
---|
[1020] | 4202 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 4203 |
|
---|
[442] | 4204 | if (exporter)
|
---|
| 4205 | {
|
---|
[580] | 4206 | cout << "exporting view cells after post process ... ";
|
---|
[600] | 4207 | if (0)
|
---|
[1563] | 4208 | { // export view space box
|
---|
[542] | 4209 | exporter->SetWireframe();
|
---|
| 4210 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 4211 | exporter->SetFilled();
|
---|
| 4212 | }
|
---|
| 4213 |
|
---|
[1052] | 4214 | Material m;
|
---|
| 4215 | m.mDiffuseColor.r = 0.0f;
|
---|
| 4216 | m.mDiffuseColor.g = 0.5f;
|
---|
| 4217 | m.mDiffuseColor.b = 0.5f;
|
---|
| 4218 |
|
---|
| 4219 | exporter->SetForcedMaterial(m);
|
---|
| 4220 |
|
---|
[1563] | 4221 | if (1 && mExportGeometry)
|
---|
[542] | 4222 | {
|
---|
[485] | 4223 | exporter->ExportGeometry(objects);
|
---|
[542] | 4224 | }
|
---|
[489] | 4225 |
|
---|
[1047] | 4226 | if (0 && mExportRays)
|
---|
[489] | 4227 | {
|
---|
[1052] | 4228 | exporter->ExportRays(visRays, RgbColor(1, 0, 0));
|
---|
[490] | 4229 | }
|
---|
[1416] | 4230 | ExportViewCellsForViz(exporter, NULL, GetClipPlane());
|
---|
[1020] | 4231 |
|
---|
[442] | 4232 | delete exporter;
|
---|
[580] | 4233 | cout << "finished" << endl;
|
---|
[442] | 4234 | }
|
---|
[557] | 4235 | }
|
---|
[503] | 4236 |
|
---|
[1551] | 4237 | ////////////////
|
---|
[442] | 4238 | //-- visualization of the BSP splits
|
---|
[1551] | 4239 |
|
---|
[442] | 4240 | bool exportSplits = false;
|
---|
[1004] | 4241 | Environment::GetSingleton()->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 4242 |
|
---|
[442] | 4243 | if (exportSplits)
|
---|
| 4244 | {
|
---|
| 4245 | cout << "exporting splits ... ";
|
---|
[485] | 4246 | ExportSplits(objects, visRays);
|
---|
[442] | 4247 | cout << "finished" << endl;
|
---|
| 4248 | }
|
---|
| 4249 |
|
---|
[1551] | 4250 | ////////
|
---|
[542] | 4251 | //-- export single view cells
|
---|
[1570] | 4252 |
|
---|
| 4253 | int leafOut;
|
---|
| 4254 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
| 4255 | const int raysOut = 100;
|
---|
| 4256 |
|
---|
| 4257 | ExportSingleViewCells(objects, leafOut, false, true, false, raysOut, "");
|
---|
[442] | 4258 | }
|
---|
| 4259 |
|
---|
[503] | 4260 |
|
---|
[485] | 4261 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
| 4262 | const VssRayContainer &rays)
|
---|
[442] | 4263 | {
|
---|
| 4264 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 4265 |
|
---|
[503] | 4266 | if (exporter)
|
---|
| 4267 | {
|
---|
| 4268 | Material m;
|
---|
[442] | 4269 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4270 | exporter->SetForcedMaterial(m);
|
---|
| 4271 | exporter->SetWireframe();
|
---|
[503] | 4272 |
|
---|
[448] | 4273 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
[442] | 4274 |
|
---|
| 4275 | // take forced material, else big scenes cannot be viewed
|
---|
| 4276 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4277 | exporter->SetForcedMaterial(m);
|
---|
| 4278 | exporter->SetFilled();
|
---|
| 4279 |
|
---|
| 4280 | exporter->ResetForcedMaterial();
|
---|
[503] | 4281 |
|
---|
[442] | 4282 | // export rays
|
---|
[485] | 4283 | if (mExportRays)
|
---|
[1545] | 4284 | {
|
---|
[485] | 4285 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
[1545] | 4286 | }
|
---|
[503] | 4287 |
|
---|
[485] | 4288 | if (mExportGeometry)
|
---|
[1545] | 4289 | {
|
---|
[442] | 4290 | exporter->ExportGeometry(objects);
|
---|
[1545] | 4291 | }
|
---|
[442] | 4292 | delete exporter;
|
---|
| 4293 | }
|
---|
| 4294 | }
|
---|
| 4295 |
|
---|
[503] | 4296 |
|
---|
[1570] | 4297 | void VspBspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 4298 | const int maxViewCells,
|
---|
| 4299 | const bool sortViewCells,
|
---|
| 4300 | const bool exportPvs,
|
---|
| 4301 | const bool exportRays,
|
---|
| 4302 | const int maxRays,
|
---|
| 4303 | const string prefix,
|
---|
| 4304 | VssRayContainer *visRays)
|
---|
| 4305 | {
|
---|
[694] | 4306 | if (sortViewCells)
|
---|
[801] | 4307 | {
|
---|
[1570] | 4308 | // sort view cells to visualize the largest view cells
|
---|
[801] | 4309 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 4310 | }
|
---|
| 4311 |
|
---|
[1566] | 4312 | //////////
|
---|
[1570] | 4313 | //-- some view cells for output
|
---|
[483] | 4314 |
|
---|
[1570] | 4315 | ViewCell::NewMail();
|
---|
| 4316 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
| 4317 |
|
---|
[478] | 4318 | for (int i = 0; i < limit; ++ i)
|
---|
[442] | 4319 | {
|
---|
[478] | 4320 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 4321 |
|
---|
[1570] | 4322 | ViewCell *vc = sortViewCells ? // largest view cell pvs first?
|
---|
| 4323 | mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 0.5f)] : mViewCells[i];
|
---|
[442] | 4324 |
|
---|
[1570] | 4325 | if (vc->Mailed() || vc->GetId() == OUT_OF_BOUNDS_ID)
|
---|
| 4326 | continue;
|
---|
| 4327 |
|
---|
| 4328 | vc->Mail();
|
---|
| 4329 |
|
---|
[801] | 4330 | ObjectPvs pvs;
|
---|
| 4331 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
| 4332 |
|
---|
[1570] | 4333 | char s[64]; sprintf(s, "%sviewcell%04d.wrl", prefix.c_str(), i);
|
---|
[639] | 4334 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 4335 |
|
---|
[1571] | 4336 | const int pvsSize = (int)mViewCellsTree->GetPvsSize(vc);
|
---|
| 4337 | cout << "view cell " << vc->GetId() << ": pvs size=" << pvsSize << endl;
|
---|
[587] | 4338 |
|
---|
[1570] | 4339 | if (exportRays)
|
---|
[442] | 4340 | {
|
---|
[1566] | 4341 | ////////////
|
---|
| 4342 | //-- export rays piercing this view cell
|
---|
| 4343 |
|
---|
| 4344 | // take rays stored with the view cells during subdivision
|
---|
[1551] | 4345 | VssRayContainer vcRays;
|
---|
| 4346 | VssRayContainer collectRays;
|
---|
[639] | 4347 |
|
---|
[1566] | 4348 | // collect initial view cells
|
---|
[1551] | 4349 | ViewCellContainer leaves;
|
---|
| 4350 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[639] | 4351 |
|
---|
[1551] | 4352 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
[1566] | 4353 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
[1570] | 4354 | {
|
---|
[1551] | 4355 | BspLeaf *vcLeaf = dynamic_cast<BspViewCell *>(*vit)->mLeaves[0];
|
---|
| 4356 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
[587] | 4357 |
|
---|
[1551] | 4358 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
[639] | 4359 | {
|
---|
[1551] | 4360 | collectRays.push_back(*rit);
|
---|
[639] | 4361 | }
|
---|
[1551] | 4362 | }
|
---|
[801] | 4363 |
|
---|
[1570] | 4364 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
[1571] | 4365 |
|
---|
[1566] | 4366 | // prepare some rays for output
|
---|
[1551] | 4367 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 4368 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
[639] | 4369 | {
|
---|
[1566] | 4370 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
[1551] | 4371 |
|
---|
| 4372 | if (p < raysOut)
|
---|
[1566] | 4373 | {
|
---|
[1551] | 4374 | vcRays.push_back(*rit);
|
---|
[1566] | 4375 | }
|
---|
[639] | 4376 | }
|
---|
| 4377 |
|
---|
[1551] | 4378 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[442] | 4379 | }
|
---|
[639] | 4380 |
|
---|
[1416] | 4381 | ////////////////
|
---|
[1020] | 4382 | //-- export view cell geometry
|
---|
[1416] | 4383 |
|
---|
[478] | 4384 | exporter->SetWireframe();
|
---|
[442] | 4385 |
|
---|
[478] | 4386 | Material m;//= RandomMaterial();
|
---|
| 4387 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4388 | exporter->SetForcedMaterial(m);
|
---|
[442] | 4389 |
|
---|
[1416] | 4390 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[639] | 4391 | exporter->SetFilled();
|
---|
[503] | 4392 |
|
---|
[1570] | 4393 | if (exportPvs)
|
---|
[574] | 4394 | {
|
---|
[801] | 4395 | Intersectable::NewMail();
|
---|
[1570] | 4396 |
|
---|
[1566] | 4397 | ObjectPvsMap::const_iterator oit, oit_end = pvs.mEntries.end();
|
---|
[1570] | 4398 | cout << endl;
|
---|
[639] | 4399 | // output PVS of view cell
|
---|
[801] | 4400 | for (oit = pvs.mEntries.begin(); oit != oit_end; ++ oit)
|
---|
[639] | 4401 | {
|
---|
| 4402 | Intersectable *intersect = (*oit).first;
|
---|
[1570] | 4403 |
|
---|
[639] | 4404 | if (!intersect->Mailed())
|
---|
| 4405 | {
|
---|
[1570] | 4406 | intersect->Mail();
|
---|
[1571] | 4407 |
|
---|
[643] | 4408 | m = RandomMaterial();
|
---|
| 4409 | exporter->SetForcedMaterial(m);
|
---|
[639] | 4410 | exporter->ExportIntersectable(intersect);
|
---|
| 4411 | }
|
---|
[503] | 4412 | }
|
---|
[1570] | 4413 | cout << endl;
|
---|
[442] | 4414 | }
|
---|
[801] | 4415 |
|
---|
[478] | 4416 | DEL_PTR(exporter);
|
---|
| 4417 | cout << "finished" << endl;
|
---|
[442] | 4418 | }
|
---|
| 4419 | }
|
---|
| 4420 |
|
---|
| 4421 |
|
---|
[1021] | 4422 | void VspBspViewCellsManager::TestFilter(const ObjectContainer &objects)
|
---|
[697] | 4423 | {
|
---|
[1021] | 4424 | Exporter *exporter = Exporter::GetExporter("filter.x3d");
|
---|
[697] | 4425 |
|
---|
[1021] | 4426 | Vector3 bsize = mViewSpaceBox.Size();
|
---|
| 4427 | const Vector3 viewPoint(mViewSpaceBox.Center());
|
---|
| 4428 | float w = Magnitude(mViewSpaceBox.Size()) * mFilterWidth;
|
---|
| 4429 | const Vector3 width = Vector3(w);
|
---|
| 4430 |
|
---|
| 4431 | PrVs testPrVs;
|
---|
| 4432 |
|
---|
| 4433 | if (exporter)
|
---|
| 4434 | {
|
---|
| 4435 | ViewCellContainer viewCells;
|
---|
| 4436 |
|
---|
| 4437 | const AxisAlignedBox3 tbox = GetFilterBBox(viewPoint, mFilterWidth);
|
---|
[697] | 4438 |
|
---|
[1021] | 4439 | GetPrVS(viewPoint, testPrVs, GetFilterWidth());
|
---|
[482] | 4440 |
|
---|
[1021] | 4441 | exporter->SetWireframe();
|
---|
[482] | 4442 |
|
---|
[1021] | 4443 | exporter->SetForcedMaterial(RgbColor(1,1,1));
|
---|
| 4444 | exporter->ExportBox(tbox);
|
---|
| 4445 |
|
---|
| 4446 | exporter->SetFilled();
|
---|
[503] | 4447 |
|
---|
[1021] | 4448 | exporter->SetForcedMaterial(RgbColor(0,1,0));
|
---|
[1416] | 4449 | ExportViewCellGeometry(exporter, GetViewCell(viewPoint), NULL, NULL);
|
---|
[564] | 4450 |
|
---|
[1021] | 4451 | //exporter->ResetForcedMaterial();
|
---|
| 4452 | exporter->SetForcedMaterial(RgbColor(0,0,1));
|
---|
[1416] | 4453 | ExportViewCellGeometry(exporter, testPrVs.mViewCell, NULL, NULL);
|
---|
[591] | 4454 |
|
---|
[1021] | 4455 | exporter->SetForcedMaterial(RgbColor(1,0,0));
|
---|
| 4456 | exporter->ExportGeometry(objects);
|
---|
[547] | 4457 |
|
---|
[1021] | 4458 | delete exporter;
|
---|
[482] | 4459 | }
|
---|
[1021] | 4460 | }
|
---|
[482] | 4461 |
|
---|
[547] | 4462 |
|
---|
[1021] | 4463 | int VspBspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 4464 | ViewCellContainer &viewCells) const
|
---|
| 4465 | {
|
---|
| 4466 | return mVspBspTree->ComputeBoxIntersections(box, viewCells);
|
---|
[482] | 4467 | }
|
---|
| 4468 |
|
---|
| 4469 |
|
---|
[1021] | 4470 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 4471 | const Vector3 &termination,
|
---|
| 4472 | ViewCellContainer &viewcells)
|
---|
| 4473 | {
|
---|
| 4474 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 4475 | }
|
---|
| 4476 |
|
---|
| 4477 |
|
---|
[979] | 4478 | void VspBspViewCellsManager::VisualizeWithFromPointQueries()
|
---|
| 4479 | {
|
---|
| 4480 | int numSamples;
|
---|
[1161] | 4481 |
|
---|
[1004] | 4482 | Environment::GetSingleton()->GetIntValue("RenderSampler.samples", numSamples);
|
---|
[979] | 4483 | cout << "samples" << numSamples << endl;
|
---|
| 4484 |
|
---|
| 4485 | vector<RenderCostSample> samples;
|
---|
| 4486 |
|
---|
[1145] | 4487 | if (!mPreprocessor->GetRenderer())
|
---|
[979] | 4488 | return;
|
---|
| 4489 |
|
---|
[1145] | 4490 | //start the view point queries
|
---|
[979] | 4491 | long startTime = GetTime();
|
---|
| 4492 | cout << "starting sampling of render cost ... ";
|
---|
| 4493 |
|
---|
[1145] | 4494 | mPreprocessor->GetRenderer()->SampleRenderCost(numSamples, samples, true);
|
---|
[979] | 4495 |
|
---|
| 4496 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 4497 |
|
---|
| 4498 |
|
---|
[1161] | 4499 | // for each sample:
|
---|
| 4500 | // find view cells associated with the samples
|
---|
| 4501 | // store the sample pvs with the pvs associated with the view cell
|
---|
[1415] | 4502 | //
|
---|
[1161] | 4503 | // for each view cell:
|
---|
| 4504 | // compute difference point sampled pvs - view cell pvs
|
---|
| 4505 | // export geometry with color coded pvs difference
|
---|
| 4506 |
|
---|
| 4507 | std::map<ViewCell *, ObjectPvs> sampleMap;
|
---|
| 4508 |
|
---|
[979] | 4509 | vector<RenderCostSample>::const_iterator rit, rit_end = samples.end();
|
---|
| 4510 |
|
---|
[1161] | 4511 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 4512 | {
|
---|
| 4513 | RenderCostSample sample = *rit;
|
---|
| 4514 |
|
---|
| 4515 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
[991] | 4516 |
|
---|
[1161] | 4517 | std::map<ViewCell *, ObjectPvs>::iterator it = sampleMap.find(vc);
|
---|
| 4518 |
|
---|
| 4519 | if (it == sampleMap.end())
|
---|
| 4520 | {
|
---|
| 4521 | sampleMap[vc] = sample.mPvs;
|
---|
| 4522 | }
|
---|
| 4523 | else
|
---|
| 4524 | {
|
---|
| 4525 | (*it).second.Merge(sample.mPvs);
|
---|
| 4526 | }
|
---|
| 4527 | }
|
---|
| 4528 |
|
---|
| 4529 | // visualize the view cells
|
---|
| 4530 | std::map<ViewCell *, ObjectPvs>::const_iterator vit, vit_end = sampleMap.end();
|
---|
| 4531 |
|
---|
| 4532 | Material m;//= RandomMaterial();
|
---|
| 4533 |
|
---|
| 4534 | for (vit = sampleMap.begin(); vit != vit_end; ++ vit)
|
---|
| 4535 | {
|
---|
| 4536 | ViewCell *vc = (*vit).first;
|
---|
| 4537 |
|
---|
| 4538 | const int pvsVc = mViewCellsTree->GetPvsEntries(vc);
|
---|
[1168] | 4539 | const int pvsPtSamples = (*vit).second.GetSize();
|
---|
[1161] | 4540 |
|
---|
[1168] | 4541 | m.mDiffuseColor.r = (float) (pvsVc - pvsPtSamples);
|
---|
[1161] | 4542 | m.mDiffuseColor.b = 1.0f;
|
---|
| 4543 | //exporter->SetForcedMaterial(m);
|
---|
[1416] | 4544 | //ExportViewCellGeometry(exporter, vc, mClipPlaneForViz);
|
---|
[1161] | 4545 |
|
---|
[1415] | 4546 | /* // counting the pvss
|
---|
| 4547 | for (rit = samples.begin(); rit != rit_end; ++ rit)
|
---|
| 4548 | {
|
---|
| 4549 | RenderCostSample sample = *rit;
|
---|
| 4550 | ViewCell *vc = GetViewCell(sample.mPosition);
|
---|
[1161] | 4551 |
|
---|
[1415] | 4552 | AxisAlignedBox3 box(sample.mPosition - Vector3(1, 1, 1), sample.mPosition + Vector3(1, 1, 1));
|
---|
| 4553 | Mesh *hMesh = CreateMeshFromBox(box);
|
---|
[1001] | 4554 |
|
---|
[1415] | 4555 | DEL_PTR(hMesh);
|
---|
| 4556 | }
|
---|
| 4557 | */
|
---|
[979] | 4558 | }
|
---|
| 4559 | }
|
---|
| 4560 |
|
---|
| 4561 |
|
---|
[580] | 4562 | void VspBspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[1416] | 4563 | ViewCell *vc,
|
---|
| 4564 | const AxisAlignedBox3 *sceneBox,
|
---|
| 4565 | const AxisAlignedPlane *clipPlane
|
---|
| 4566 | ) const
|
---|
[482] | 4567 | {
|
---|
[660] | 4568 | if (clipPlane)
|
---|
[591] | 4569 | {
|
---|
[1047] | 4570 | const Plane3 plane = clipPlane->GetPlane();
|
---|
| 4571 |
|
---|
[591] | 4572 | ViewCellContainer leaves;
|
---|
| 4573 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4574 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4575 |
|
---|
| 4576 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4577 | {
|
---|
| 4578 | BspNodeGeometry geom;
|
---|
| 4579 | BspNodeGeometry front;
|
---|
| 4580 | BspNodeGeometry back;
|
---|
| 4581 |
|
---|
[1551] | 4582 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
[591] | 4583 |
|
---|
[1052] | 4584 | const float eps = 0.0001f;
|
---|
[1047] | 4585 | const int cf = geom.Side(plane, eps);
|
---|
[682] | 4586 |
|
---|
[710] | 4587 | if (cf == -1)
|
---|
[682] | 4588 | {
|
---|
| 4589 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 4590 | }
|
---|
[710] | 4591 | else if (cf == 0)
|
---|
[684] | 4592 | {
|
---|
[682] | 4593 | geom.SplitGeometry(front,
|
---|
| 4594 | back,
|
---|
[1047] | 4595 | plane,
|
---|
[682] | 4596 | mViewSpaceBox,
|
---|
[710] | 4597 | eps);
|
---|
[801] | 4598 |
|
---|
[683] | 4599 | if (back.Valid())
|
---|
| 4600 | {
|
---|
[682] | 4601 | exporter->ExportPolygons(back.GetPolys());
|
---|
[708] | 4602 | }
|
---|
[684] | 4603 | }
|
---|
[591] | 4604 | }
|
---|
| 4605 | }
|
---|
| 4606 | else
|
---|
| 4607 | {
|
---|
[801] | 4608 | // export mesh if available
|
---|
[1001] | 4609 | // TODO: some bug here?
|
---|
[1563] | 4610 | if (1 && vc->GetMesh())
|
---|
[801] | 4611 | {
|
---|
| 4612 | exporter->ExportMesh(vc->GetMesh());
|
---|
| 4613 | }
|
---|
| 4614 | else
|
---|
[1001] | 4615 | {
|
---|
[801] | 4616 | BspNodeGeometry geom;
|
---|
| 4617 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
| 4618 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[1001] | 4619 | }
|
---|
[591] | 4620 | }
|
---|
[482] | 4621 | }
|
---|
| 4622 |
|
---|
| 4623 |
|
---|
| 4624 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
| 4625 | {
|
---|
[580] | 4626 | ViewCellContainer leaves;
|
---|
| 4627 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[482] | 4628 |
|
---|
| 4629 | int maxDist = 0;
|
---|
[580] | 4630 |
|
---|
[482] | 4631 | // compute max height difference
|
---|
[580] | 4632 | for (int i = 0; i < (int)leaves.size(); ++ i)
|
---|
[1001] | 4633 | {
|
---|
[580] | 4634 | for (int j = 0; j < (int)leaves.size(); ++ j)
|
---|
[1001] | 4635 | {
|
---|
[1551] | 4636 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(leaves[i])->mLeaves[0];
|
---|
[482] | 4637 |
|
---|
[1001] | 4638 | if (i != j)
|
---|
| 4639 | {
|
---|
[1551] | 4640 | BspLeaf *leaf2 =dynamic_cast<BspViewCell *>(leaves[j])->mLeaves[0];
|
---|
| 4641 | const int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
[1001] | 4642 |
|
---|
| 4643 | if (dist > maxDist)
|
---|
| 4644 | maxDist = dist;
|
---|
| 4645 | }
|
---|
[482] | 4646 | }
|
---|
| 4647 | }
|
---|
[580] | 4648 |
|
---|
[492] | 4649 | return maxDist;
|
---|
| 4650 | }
|
---|
[482] | 4651 |
|
---|
[492] | 4652 |
|
---|
[879] | 4653 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point, const bool active) const
|
---|
[492] | 4654 | {
|
---|
[1021] | 4655 | if (!ViewCellsConstructed())
|
---|
[508] | 4656 | return NULL;
|
---|
[572] | 4657 |
|
---|
| 4658 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 4659 | return NULL;
|
---|
| 4660 |
|
---|
[879] | 4661 | return mVspBspTree->GetViewCell(point, active);
|
---|
[492] | 4662 | }
|
---|
[503] | 4663 |
|
---|
| 4664 |
|
---|
| 4665 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 4666 | {
|
---|
| 4667 | BspNodeGeometry geom;
|
---|
[590] | 4668 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
[582] | 4669 |
|
---|
[1001] | 4670 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[840] | 4671 | IncludeNodeGeomInMesh(geom, *mesh);
|
---|
| 4672 |
|
---|
[503] | 4673 | vc->SetMesh(mesh);
|
---|
| 4674 | }
|
---|
[508] | 4675 |
|
---|
| 4676 |
|
---|
[532] | 4677 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 4678 | {
|
---|
[535] | 4679 | return mVspBspTree->CastBeam(beam);
|
---|
[532] | 4680 | }
|
---|
[551] | 4681 |
|
---|
| 4682 |
|
---|
[587] | 4683 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 4684 | const bool createMesh)
|
---|
[551] | 4685 | {
|
---|
| 4686 | float area = 0;
|
---|
| 4687 | float volume = 0;
|
---|
| 4688 |
|
---|
[580] | 4689 | ViewCellContainer leaves;
|
---|
[582] | 4690 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
[580] | 4691 |
|
---|
| 4692 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4693 |
|
---|
[693] | 4694 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[551] | 4695 | {
|
---|
| 4696 | BspNodeGeometry geom;
|
---|
[1551] | 4697 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
[551] | 4698 |
|
---|
[719] | 4699 | const float lVol = geom.GetVolume();
|
---|
| 4700 | const float lArea = geom.GetArea();
|
---|
[693] | 4701 |
|
---|
| 4702 | area += lArea;
|
---|
| 4703 | volume += lVol;
|
---|
| 4704 |
|
---|
| 4705 | CreateMesh(*it);
|
---|
[551] | 4706 | }
|
---|
| 4707 |
|
---|
| 4708 | viewCell->SetVolume(volume);
|
---|
| 4709 | viewCell->SetArea(area);
|
---|
[563] | 4710 | }
|
---|
[575] | 4711 |
|
---|
| 4712 |
|
---|
[693] | 4713 | void VspBspViewCellsManager::TestSubdivision()
|
---|
| 4714 | {
|
---|
| 4715 | ViewCellContainer leaves;
|
---|
| 4716 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 4717 |
|
---|
| 4718 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4719 |
|
---|
| 4720 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 4721 | float subdivVol = 0;
|
---|
| 4722 | float newVol = 0;
|
---|
| 4723 |
|
---|
| 4724 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4725 | {
|
---|
| 4726 | BspNodeGeometry geom;
|
---|
[1551] | 4727 | mVspBspTree->ConstructGeometry(*it, geom);
|
---|
[693] | 4728 |
|
---|
| 4729 | const float lVol = geom.GetVolume();
|
---|
| 4730 |
|
---|
| 4731 | newVol += lVol;
|
---|
| 4732 | subdivVol += (*it)->GetVolume();
|
---|
[697] | 4733 |
|
---|
[704] | 4734 | float thres = 0.9f;
|
---|
[697] | 4735 | if ((lVol < ((*it)->GetVolume() * thres)) || (lVol * thres > ((*it)->GetVolume())))
|
---|
| 4736 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 4737 | }
|
---|
| 4738 |
|
---|
| 4739 | Debug << "exact volume: " << vol << endl;
|
---|
| 4740 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 4741 | Debug << "new volume: " << newVol << endl;
|
---|
| 4742 | }
|
---|
| 4743 |
|
---|
| 4744 |
|
---|
[577] | 4745 | void VspBspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 4746 | {
|
---|
| 4747 | // TODO: do I still need this here?
|
---|
[590] | 4748 | if (0)
|
---|
[693] | 4749 | mVspBspTree->RepairViewCellsLeafLists();
|
---|
[577] | 4750 | }
|
---|
[575] | 4751 |
|
---|
[1021] | 4752 |
|
---|
| 4753 |
|
---|
| 4754 | /**************************************************************************/
|
---|
[1047] | 4755 | /* VspOspViewCellsManager implementation */
|
---|
[1021] | 4756 | /**************************************************************************/
|
---|
| 4757 |
|
---|
| 4758 |
|
---|
[1278] | 4759 | VspOspViewCellsManager::VspOspViewCellsManager(ViewCellsTree *vcTree, HierarchyManager *hm)
|
---|
| 4760 | : ViewCellsManager(vcTree), mHierarchyManager(hm)
|
---|
[859] | 4761 | {
|
---|
[1027] | 4762 | Environment::GetSingleton()->GetIntValue("VspTree.Construction.samples", mInitialSamples);
|
---|
[1106] | 4763 |
|
---|
[1278] | 4764 | mHierarchyManager->SetViewCellsManager(this);
|
---|
| 4765 | mHierarchyManager->SetViewCellsTree(mViewCellsTree);
|
---|
[1021] | 4766 | }
|
---|
[859] | 4767 |
|
---|
| 4768 |
|
---|
[1021] | 4769 | VspOspViewCellsManager::~VspOspViewCellsManager()
|
---|
| 4770 | {
|
---|
| 4771 | }
|
---|
| 4772 |
|
---|
| 4773 |
|
---|
| 4774 | float VspOspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
| 4775 | {
|
---|
| 4776 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
| 4777 | }
|
---|
| 4778 |
|
---|
| 4779 |
|
---|
| 4780 | void VspOspViewCellsManager::CollectViewCells()
|
---|
| 4781 | {
|
---|
| 4782 | // view cells tree constructed
|
---|
| 4783 | if (!ViewCellsTreeConstructed())
|
---|
| 4784 | {
|
---|
[1278] | 4785 | mHierarchyManager->GetVspTree()->CollectViewCells(mViewCells, false);
|
---|
[1021] | 4786 | }
|
---|
| 4787 | else
|
---|
| 4788 | { // we can use the view cells tree hierarchy to get the right set
|
---|
| 4789 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
| 4790 | }
|
---|
| 4791 | }
|
---|
| 4792 |
|
---|
| 4793 |
|
---|
| 4794 | bool VspOspViewCellsManager::ViewCellsConstructed() const
|
---|
| 4795 | {
|
---|
[1278] | 4796 | return mHierarchyManager->GetVspTree()->GetRoot() != NULL;
|
---|
[1021] | 4797 | }
|
---|
| 4798 |
|
---|
| 4799 |
|
---|
| 4800 | ViewCell *VspOspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 4801 | {
|
---|
| 4802 | return new VspViewCell(mesh);
|
---|
| 4803 | }
|
---|
| 4804 |
|
---|
| 4805 |
|
---|
| 4806 | int VspOspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 4807 | const VssRayContainer &rays)
|
---|
| 4808 | {
|
---|
| 4809 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 4810 |
|
---|
[1074] | 4811 | // skip rest if view cells were already constructed
|
---|
[1021] | 4812 | if (ViewCellsConstructed())
|
---|
| 4813 | return 0;
|
---|
| 4814 |
|
---|
| 4815 | int sampleContributions = 0;
|
---|
| 4816 | VssRayContainer sampleRays;
|
---|
| 4817 |
|
---|
| 4818 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
| 4819 |
|
---|
| 4820 | VssRayContainer constructionRays;
|
---|
| 4821 | VssRayContainer savedRays;
|
---|
| 4822 |
|
---|
| 4823 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
| 4824 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
| 4825 |
|
---|
| 4826 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
| 4827 |
|
---|
[1421] | 4828 | Debug << "initial rays used for construction: " << (int)constructionRays.size() << endl;
|
---|
[1021] | 4829 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
| 4830 |
|
---|
[1293] | 4831 | mHierarchyManager->Construct(constructionRays, objects, &mViewSpaceBox);
|
---|
[1142] | 4832 |
|
---|
[1576] | 4833 | #if TEST_EVALUATION
|
---|
| 4834 | VssRayContainer::const_iterator tit, tit_end = constructionRays.end();
|
---|
| 4835 | for (tit = constructionRays.begin(); tit != tit_end; ++ tit)
|
---|
| 4836 | {
|
---|
| 4837 | storedRays.push_back(new VssRay(*(*tit)));
|
---|
| 4838 | }
|
---|
| 4839 | #endif
|
---|
| 4840 |
|
---|
[1545] | 4841 | /////////////////////////
|
---|
[1444] | 4842 | //-- print satistics for subdivision and view cells
|
---|
| 4843 |
|
---|
[1421] | 4844 | Debug << endl << endl << *mHierarchyManager << endl;
|
---|
[1021] | 4845 |
|
---|
[1444] | 4846 | ResetViewCells();
|
---|
| 4847 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
| 4848 |
|
---|
[1545] | 4849 | //////////////
|
---|
[1444] | 4850 | //-- recast rest of rays
|
---|
| 4851 |
|
---|
[1286] | 4852 | const long startTime = GetTime();
|
---|
[1021] | 4853 | cout << "Computing remaining ray contributions ... ";
|
---|
| 4854 |
|
---|
| 4855 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 4856 | ComputeSampleContributions(savedRays, true, false);
|
---|
| 4857 |
|
---|
[1415] | 4858 | Debug << "finished computing remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[1021] | 4859 | << " secs" << endl;
|
---|
| 4860 |
|
---|
| 4861 | if (0)
|
---|
[1545] | 4862 | { // real meshes are constructed at this stage
|
---|
[1021] | 4863 | cout << "finalizing view cells ... ";
|
---|
| 4864 | FinalizeViewCells(true);
|
---|
| 4865 | cout << "finished" << endl;
|
---|
| 4866 | }
|
---|
| 4867 |
|
---|
| 4868 | return sampleContributions;
|
---|
| 4869 | }
|
---|
| 4870 |
|
---|
| 4871 |
|
---|
| 4872 | int VspOspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 4873 | const VssRayContainer &rays)
|
---|
| 4874 | {
|
---|
| 4875 | if (!ViewCellsConstructed())
|
---|
| 4876 | {
|
---|
| 4877 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
| 4878 | return 0;
|
---|
| 4879 | }
|
---|
| 4880 |
|
---|
[1418] | 4881 | // if view cells were already constructed before post processing step
|
---|
| 4882 | // (e.g., because they were loaded), we are finished
|
---|
[1021] | 4883 | if (mViewCellsFinished)
|
---|
| 4884 | {
|
---|
| 4885 | FinalizeViewCells(true);
|
---|
| 4886 | EvaluateViewCellsStats();
|
---|
| 4887 |
|
---|
| 4888 | return 0;
|
---|
| 4889 | }
|
---|
| 4890 |
|
---|
| 4891 | // check if new view cells turned invalid
|
---|
| 4892 | int minPvs, maxPvs;
|
---|
| 4893 |
|
---|
| 4894 | if (0)
|
---|
| 4895 | {
|
---|
| 4896 | minPvs = mMinPvsSize;
|
---|
| 4897 | maxPvs = mMaxPvsSize;
|
---|
| 4898 | }
|
---|
| 4899 | else
|
---|
| 4900 | {
|
---|
[1414] | 4901 | // problem matt: why did I start here from zero?
|
---|
| 4902 | minPvs = 0;
|
---|
[1021] | 4903 | maxPvs = mMaxPvsSize;
|
---|
| 4904 | }
|
---|
| 4905 |
|
---|
| 4906 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4907 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 4908 |
|
---|
| 4909 | SetValidity(minPvs, maxPvs);
|
---|
| 4910 |
|
---|
| 4911 |
|
---|
[1414] | 4912 | // area is not up to date, has to be recomputed
|
---|
[1021] | 4913 | mTotalAreaValid = false;
|
---|
| 4914 | VssRayContainer postProcessRays;
|
---|
| 4915 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 4916 |
|
---|
| 4917 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
| 4918 |
|
---|
| 4919 |
|
---|
| 4920 | // should maybe be done here to allow merge working with area or volume
|
---|
| 4921 | // and to correct the rendering statistics
|
---|
| 4922 | if (0) FinalizeViewCells(false);
|
---|
| 4923 |
|
---|
| 4924 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
[1278] | 4925 | ViewCell *root = ConstructSpatialMergeTree(mHierarchyManager->GetVspTree()->GetRoot());
|
---|
[1021] | 4926 | mViewCellsTree->SetRoot(root);
|
---|
| 4927 |
|
---|
[1418] | 4928 |
|
---|
| 4929 | //////////////////////////
|
---|
[1414] | 4930 | //-- update pvs in the whole hierarchy
|
---|
[1021] | 4931 | ObjectPvs pvs;
|
---|
| 4932 | UpdatePvsForEvaluation(root, pvs);
|
---|
| 4933 |
|
---|
[1414] | 4934 |
|
---|
[1418] | 4935 | //////////////////////
|
---|
[1021] | 4936 | //-- render simulation after merge + refine
|
---|
[1414] | 4937 |
|
---|
[1415] | 4938 | cout << "\nview cells partition render time before compress" << endl << endl;
|
---|
[1021] | 4939 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 4940 | SimulationStatistics ss;
|
---|
| 4941 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 4942 | cout << ss << endl;
|
---|
[1414] | 4943 |
|
---|
[1486] | 4944 |
|
---|
[1586] | 4945 | ///////////
|
---|
[1021] | 4946 | //-- compression
|
---|
[1262] | 4947 |
|
---|
[1021] | 4948 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 4949 | {
|
---|
[1586] | 4950 | int pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[1021] | 4951 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
[859] | 4952 |
|
---|
[1021] | 4953 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[859] | 4954 |
|
---|
[1586] | 4955 | pvsEntries = mViewCellsTree->CountStoredPvsEntries(mViewCellsTree->GetRoot());
|
---|
[1021] | 4956 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
[859] | 4957 | }
|
---|
[1021] | 4958 |
|
---|
[1486] | 4959 | /////////////
|
---|
| 4960 | //-- some tasks still to do on the view cells:
|
---|
| 4961 | //-- Compute meshes from view cell geometry, evaluate volume and / or area
|
---|
[1021] | 4962 | if (1) FinalizeViewCells(true);
|
---|
| 4963 |
|
---|
[1418] | 4964 | // write out view cells (this moved to preprocessor)
|
---|
[1486] | 4965 | if (1 && mExportViewCells)
|
---|
[1021] | 4966 | {
|
---|
| 4967 | char filename[100];
|
---|
| 4968 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", filename);
|
---|
| 4969 | ExportViewCells(filename, mExportPvs, objects);
|
---|
| 4970 | }
|
---|
| 4971 |
|
---|
| 4972 | return 0;
|
---|
[859] | 4973 | }
|
---|
| 4974 |
|
---|
[1021] | 4975 |
|
---|
| 4976 | int VspOspViewCellsManager::GetType() const
|
---|
[884] | 4977 | {
|
---|
[1021] | 4978 | return VSP_OSP;
|
---|
| 4979 | }
|
---|
[859] | 4980 |
|
---|
[1021] | 4981 |
|
---|
| 4982 | ViewCell *VspOspViewCellsManager::ConstructSpatialMergeTree(VspNode *root)
|
---|
| 4983 | {
|
---|
| 4984 | // terminate recursion
|
---|
| 4985 | if (root->IsLeaf())
|
---|
| 4986 | {
|
---|
| 4987 | VspLeaf *leaf = dynamic_cast<VspLeaf *>(root);
|
---|
| 4988 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 4989 | return leaf->GetViewCell();
|
---|
| 4990 | }
|
---|
| 4991 |
|
---|
| 4992 | VspInterior *interior = dynamic_cast<VspInterior *>(root);
|
---|
| 4993 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 4994 |
|
---|
| 4995 | // evaluate merge cost for priority traversal
|
---|
| 4996 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 4997 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
| 4998 |
|
---|
| 4999 | float volume = 0;
|
---|
| 5000 |
|
---|
| 5001 | VspNode *front = interior->GetFront();
|
---|
| 5002 | VspNode *back = interior->GetBack();
|
---|
| 5003 |
|
---|
| 5004 | ObjectPvs frontPvs, backPvs;
|
---|
| 5005 |
|
---|
[1545] | 5006 | /////////
|
---|
[1021] | 5007 | //-- recursivly compute child hierarchies
|
---|
[1545] | 5008 |
|
---|
[1021] | 5009 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 5010 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
| 5011 |
|
---|
| 5012 | viewCellInterior->SetupChildLink(backVc);
|
---|
| 5013 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 5014 |
|
---|
| 5015 | volume += backVc->GetVolume();
|
---|
| 5016 | volume += frontVc->GetVolume();
|
---|
| 5017 |
|
---|
| 5018 | viewCellInterior->SetVolume(volume);
|
---|
| 5019 |
|
---|
| 5020 | return viewCellInterior;
|
---|
| 5021 | }
|
---|
| 5022 |
|
---|
| 5023 |
|
---|
| 5024 | bool VspOspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 5025 | {
|
---|
| 5026 | if (!ViewCellsConstructed())
|
---|
| 5027 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 5028 |
|
---|
| 5029 | // TODO: set reasonable limit
|
---|
| 5030 | const int limit = 20;
|
---|
| 5031 |
|
---|
| 5032 | for (int i = 0; i < limit; ++ i)
|
---|
| 5033 | {
|
---|
| 5034 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[1047] | 5035 |
|
---|
[1278] | 5036 | if (mHierarchyManager->GetVspTree()->ViewPointValid(viewPoint))
|
---|
[1021] | 5037 | {
|
---|
| 5038 | return true;
|
---|
| 5039 | }
|
---|
[904] | 5040 | }
|
---|
[859] | 5041 |
|
---|
[1021] | 5042 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 5043 | return false;
|
---|
[884] | 5044 | }
|
---|
| 5045 |
|
---|
| 5046 |
|
---|
[1027] | 5047 | void VspOspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
| 5048 | ViewCell *vc,
|
---|
[1416] | 5049 | const AxisAlignedBox3 *sceneBox,
|
---|
| 5050 | const AxisAlignedPlane *clipPlane
|
---|
| 5051 | ) const
|
---|
[1027] | 5052 | {
|
---|
| 5053 | ViewCellContainer leaves;
|
---|
| 5054 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5055 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5056 |
|
---|
[1047] | 5057 | Plane3 plane;
|
---|
| 5058 | if (clipPlane)
|
---|
[1418] | 5059 | {
|
---|
| 5060 | // arbitrary plane definition
|
---|
[1047] | 5061 | plane = clipPlane->GetPlane();
|
---|
[1418] | 5062 | }
|
---|
[1047] | 5063 |
|
---|
[1027] | 5064 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5065 | {
|
---|
| 5066 | VspViewCell *vspVc = dynamic_cast<VspViewCell *>(*it);
|
---|
[1551] | 5067 | VspLeaf *l = vspVc->mLeaves[0];
|
---|
[1027] | 5068 |
|
---|
[1416] | 5069 | const AxisAlignedBox3 box =
|
---|
[1551] | 5070 | mHierarchyManager->GetVspTree()->GetBoundingBox(vspVc->mLeaves[0]);
|
---|
[1047] | 5071 |
|
---|
[1418] | 5072 | if (sceneBox && !Overlap(*sceneBox, box))
|
---|
[1415] | 5073 | continue;
|
---|
| 5074 |
|
---|
[1047] | 5075 | if (clipPlane)
|
---|
| 5076 | {
|
---|
| 5077 | if (box.Side(plane) == -1)
|
---|
[1144] | 5078 | {
|
---|
[1047] | 5079 | exporter->ExportBox(box);
|
---|
[1144] | 5080 | }
|
---|
[1047] | 5081 | else if (box.Side(plane) == 0)
|
---|
| 5082 | {
|
---|
[1418] | 5083 | // intersection
|
---|
[1047] | 5084 | AxisAlignedBox3 fbox, bbox;
|
---|
[1418] | 5085 | box.Split(clipPlane->mAxis, clipPlane->mPosition, fbox, bbox);
|
---|
[1047] | 5086 | exporter->ExportBox(bbox);
|
---|
| 5087 | }
|
---|
| 5088 | }
|
---|
| 5089 | else
|
---|
| 5090 | {
|
---|
[1027] | 5091 | exporter->ExportBox(box);
|
---|
[1047] | 5092 | }
|
---|
[1027] | 5093 | }
|
---|
| 5094 | }
|
---|
| 5095 |
|
---|
| 5096 |
|
---|
[1021] | 5097 | bool VspOspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 5098 | {
|
---|
| 5099 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 5100 | // validy update in preprocessor for all managers)
|
---|
| 5101 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[884] | 5102 |
|
---|
[1021] | 5103 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
[1027] | 5104 | // mVspTree->ViewPointValid(viewPoint);
|
---|
[1021] | 5105 | }
|
---|
| 5106 |
|
---|
| 5107 |
|
---|
| 5108 | void VspOspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
| 5109 | const VssRayContainer &sampleRays)
|
---|
[859] | 5110 | {
|
---|
[997] | 5111 | if (!ViewCellsConstructed())
|
---|
| 5112 | return;
|
---|
[1027] | 5113 |
|
---|
[1021] | 5114 | VssRayContainer visRays;
|
---|
| 5115 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[997] | 5116 |
|
---|
[1021] | 5117 | if (1)
|
---|
[1047] | 5118 | {
|
---|
[1416] | 5119 | ////////////
|
---|
[1106] | 5120 | //-- export final view cells
|
---|
| 5121 |
|
---|
[1415] | 5122 | // hack color code (show pvs size)
|
---|
[1021] | 5123 | const int savedColorCode = mColorCode;
|
---|
[1047] | 5124 | mColorCode = 0;
|
---|
[1021] | 5125 |
|
---|
| 5126 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
| 5127 |
|
---|
| 5128 | if (exporter)
|
---|
| 5129 | {
|
---|
[1415] | 5130 | const long starttime = GetTime();
|
---|
| 5131 | cout << "exporting final view cells (after initial construction + post process) ... ";
|
---|
[859] | 5132 |
|
---|
[1418] | 5133 | // matt: hack for clamping scene
|
---|
[1563] | 5134 | AxisAlignedBox3 bbox = mViewSpaceBox;
|
---|
[1416] | 5135 | bbox.Scale(Vector3(0.5, 1, 0.5));
|
---|
[1486] | 5136 | if (CLAMP_TO_BOX)
|
---|
| 5137 | {
|
---|
| 5138 | exporter->SetWireframe();
|
---|
| 5139 | exporter->ExportBox(bbox);
|
---|
| 5140 | exporter->SetFilled();
|
---|
| 5141 | }
|
---|
| 5142 |
|
---|
[1418] | 5143 | if (0 && mExportGeometry)
|
---|
[1021] | 5144 | {
|
---|
[1486] | 5145 | exporter->ExportGeometry(objects, true, CLAMP_TO_BOX ? &bbox : NULL);
|
---|
[1021] | 5146 | }
|
---|
[1545] | 5147 |
|
---|
[1072] | 5148 | if (0 && mExportRays)
|
---|
[1545] | 5149 | {
|
---|
[1021] | 5150 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
| 5151 | }
|
---|
[1416] | 5152 |
|
---|
[1486] | 5153 | mHierarchyManager->ExportObjectSpaceHierarchy(exporter, objects, CLAMP_TO_BOX ? &bbox : NULL, false);
|
---|
| 5154 | ExportViewCellsForViz(exporter, CLAMP_TO_BOX ? &bbox : NULL, GetClipPlane());
|
---|
[1420] | 5155 |
|
---|
[1021] | 5156 | delete exporter;
|
---|
[1415] | 5157 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
[1021] | 5158 | }
|
---|
| 5159 |
|
---|
| 5160 | mColorCode = savedColorCode;
|
---|
| 5161 | }
|
---|
| 5162 |
|
---|
[1287] | 5163 | if (1)
|
---|
| 5164 | {
|
---|
| 5165 | // export final object partition
|
---|
| 5166 | Exporter *exporter = Exporter::GetExporter("final_object_partition.wrl");
|
---|
| 5167 |
|
---|
| 5168 | if (exporter)
|
---|
| 5169 | {
|
---|
[1415] | 5170 | const long starttime = GetTime();
|
---|
[1416] | 5171 |
|
---|
[1486] | 5172 | // matt: hack for making visualization smaller in size
|
---|
[1416] | 5173 | AxisAlignedBox3 bbox = mHierarchyManager->GetObjectSpaceBox();
|
---|
| 5174 | bbox.Scale(Vector3(0.5, 1, 0.5));
|
---|
[1415] | 5175 |
|
---|
[1287] | 5176 | cout << "exporting object space hierarchy ... ";
|
---|
[1486] | 5177 | mHierarchyManager->ExportObjectSpaceHierarchy(exporter, objects, CLAMP_TO_BOX ? &bbox : NULL);
|
---|
[1287] | 5178 |
|
---|
| 5179 | delete exporter;
|
---|
[1415] | 5180 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3f << " secs" << endl;
|
---|
[1287] | 5181 | }
|
---|
| 5182 | }
|
---|
[1121] | 5183 |
|
---|
[1570] | 5184 | // export some view cell
|
---|
[1021] | 5185 | int leafOut;
|
---|
| 5186 | Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.maxOutput", leafOut);
|
---|
[1570] | 5187 | const int raysOut = 100;
|
---|
[580] | 5188 |
|
---|
[1570] | 5189 | ExportSingleViewCells(objects, leafOut, false, true, false, raysOut, "");
|
---|
| 5190 | }
|
---|
[1021] | 5191 |
|
---|
| 5192 |
|
---|
[1570] | 5193 | void VspOspViewCellsManager::ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 5194 | const int maxViewCells,
|
---|
| 5195 | const bool sortViewCells,
|
---|
| 5196 | const bool exportPvs,
|
---|
| 5197 | const bool exportRays,
|
---|
| 5198 | const int maxRays,
|
---|
| 5199 | const string prefix,
|
---|
| 5200 | VssRayContainer *visRays)
|
---|
| 5201 | {
|
---|
| 5202 | if (sortViewCells)
|
---|
[697] | 5203 | {
|
---|
[1415] | 5204 | // sort view cells to visualize the view cells with highest render cost
|
---|
[1021] | 5205 | stable_sort(mViewCells.begin(), mViewCells.end(), ViewCell::LargerRenderCost);
|
---|
| 5206 | }
|
---|
| 5207 |
|
---|
[1570] | 5208 | ViewCell::NewMail();
|
---|
| 5209 | const int limit = min(maxViewCells, (int)mViewCells.size());
|
---|
[1178] | 5210 |
|
---|
[1570] | 5211 | cout << "\nExporting " << limit << " single view cells: " << endl;
|
---|
| 5212 |
|
---|
[1021] | 5213 | for (int i = 0; i < limit; ++ i)
|
---|
| 5214 | {
|
---|
| 5215 | cout << "creating output for view cell " << i << " ... ";
|
---|
[1418] | 5216 |
|
---|
| 5217 | // largest view cell pvs first of random view cell
|
---|
[1570] | 5218 | ViewCell *vc = sortViewCells ?
|
---|
[1418] | 5219 | mViewCells[i] : mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
| 5220 |
|
---|
[1570] | 5221 | if (vc->Mailed()) // already used
|
---|
| 5222 | continue;
|
---|
| 5223 |
|
---|
| 5224 | vc->Mail();
|
---|
| 5225 |
|
---|
[1021] | 5226 | ObjectPvs pvs;
|
---|
| 5227 | mViewCellsTree->GetPvs(vc, pvs);
|
---|
[704] | 5228 |
|
---|
[1570] | 5229 | char s[64]; sprintf(s, "%sviewcell%04d.wrl", prefix.c_str(), i);
|
---|
[1021] | 5230 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 5231 |
|
---|
[1570] | 5232 | cout << "view cell " << vc->GetId() << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc) << endl;
|
---|
[1021] | 5233 |
|
---|
[1570] | 5234 | if (exportPvs)
|
---|
| 5235 | {
|
---|
| 5236 | Material m;
|
---|
[1418] | 5237 |
|
---|
[1570] | 5238 | Intersectable::NewMail();
|
---|
| 5239 | ObjectPvsMap::const_iterator oit, oit_end = pvs.mEntries.end();
|
---|
| 5240 |
|
---|
| 5241 | // output PVS of view cell
|
---|
| 5242 | for (oit = pvs.mEntries.begin(); oit != oit_end; ++ oit)
|
---|
| 5243 | {
|
---|
| 5244 | Intersectable *intersect = (*oit).first;
|
---|
| 5245 | if (!intersect->Mailed())
|
---|
| 5246 | {
|
---|
| 5247 | m = RandomMaterial();
|
---|
| 5248 | exporter->SetForcedMaterial(m);
|
---|
| 5249 |
|
---|
| 5250 | exporter->ExportIntersectable(intersect);
|
---|
| 5251 | intersect->Mail();
|
---|
| 5252 | }
|
---|
| 5253 | }
|
---|
| 5254 | }
|
---|
| 5255 |
|
---|
| 5256 | if (exportRays)
|
---|
[1021] | 5257 | {
|
---|
[1570] | 5258 | ////////////
|
---|
| 5259 | //-- export the sample rays
|
---|
| 5260 |
|
---|
[1021] | 5261 | // output rays stored with the view cells during subdivision
|
---|
[1570] | 5262 | VssRayContainer vcRays;
|
---|
| 5263 | VssRayContainer collectRays;
|
---|
[1021] | 5264 |
|
---|
[1570] | 5265 | // collect intial view cells
|
---|
| 5266 | ViewCellContainer leaves;
|
---|
| 5267 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[1021] | 5268 |
|
---|
[1570] | 5269 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
[1021] | 5270 |
|
---|
[1570] | 5271 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 5272 | {
|
---|
| 5273 | VspLeaf *vcLeaf = dynamic_cast<VspViewCell *>(*vit)->mLeaves[0];
|
---|
| 5274 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
| 5275 |
|
---|
| 5276 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
[1021] | 5277 | {
|
---|
[1570] | 5278 | collectRays.push_back(*rit);
|
---|
[1021] | 5279 | }
|
---|
[1570] | 5280 | }
|
---|
[1021] | 5281 |
|
---|
[1570] | 5282 | const int raysOut = min((int)collectRays.size(), maxRays);
|
---|
[1021] | 5283 |
|
---|
[1570] | 5284 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
[1021] | 5285 |
|
---|
[1570] | 5286 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
| 5287 | {
|
---|
| 5288 | const float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 5289 |
|
---|
| 5290 | if (p < raysOut)
|
---|
| 5291 | vcRays.push_back(*rit);
|
---|
[1021] | 5292 | }
|
---|
[1570] | 5293 |
|
---|
| 5294 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[1021] | 5295 | }
|
---|
[1570] | 5296 |
|
---|
| 5297 |
|
---|
[1415] | 5298 | /////////////////
|
---|
[1021] | 5299 | //-- export view cell geometry
|
---|
[1121] | 5300 |
|
---|
[697] | 5301 | exporter->SetWireframe();
|
---|
| 5302 |
|
---|
[1416] | 5303 | Material m;
|
---|
[1021] | 5304 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 5305 | exporter->SetForcedMaterial(m);
|
---|
| 5306 |
|
---|
[1416] | 5307 | ExportViewCellGeometry(exporter, vc, NULL, NULL);
|
---|
[697] | 5308 | exporter->SetFilled();
|
---|
| 5309 |
|
---|
[1021] | 5310 | DEL_PTR(exporter);
|
---|
| 5311 | cout << "finished" << endl;
|
---|
[697] | 5312 | }
|
---|
[1021] | 5313 |
|
---|
[1570] | 5314 | cout << endl;
|
---|
[697] | 5315 | }
|
---|
| 5316 |
|
---|
| 5317 |
|
---|
[1021] | 5318 | int VspOspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 5319 | ViewCellContainer &viewCells) const
|
---|
| 5320 | {
|
---|
[1278] | 5321 | return mHierarchyManager->GetVspTree()->ComputeBoxIntersections(box, viewCells);
|
---|
[1021] | 5322 | }
|
---|
[580] | 5323 |
|
---|
[1021] | 5324 |
|
---|
| 5325 | int VspOspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 5326 | const Vector3 &termination,
|
---|
| 5327 | ViewCellContainer &viewcells)
|
---|
| 5328 | {
|
---|
[1278] | 5329 | return mHierarchyManager->GetVspTree()->CastLineSegment(origin, termination, viewcells);
|
---|
[1021] | 5330 | }
|
---|
| 5331 |
|
---|
| 5332 |
|
---|
| 5333 | bool VspOspViewCellsManager::ExportViewCells(const string filename,
|
---|
| 5334 | const bool exportPvs,
|
---|
| 5335 | const ObjectContainer &objects)
|
---|
| 5336 | {
|
---|
| 5337 | if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
|
---|
| 5338 | return false;
|
---|
| 5339 |
|
---|
[1415] | 5340 | const long starttime = GetTime();
|
---|
[1021] | 5341 | cout << "exporting view cells to xml ... ";
|
---|
| 5342 |
|
---|
[1201] | 5343 | OUT_STREAM stream(filename.c_str());
|
---|
[1021] | 5344 |
|
---|
| 5345 | // for output we need unique ids for each view cell
|
---|
| 5346 | CreateUniqueViewCellIds();
|
---|
| 5347 |
|
---|
| 5348 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 5349 | stream << "<VisibilitySolution>" << endl;
|
---|
| 5350 |
|
---|
[1580] | 5351 | if (exportPvs)
|
---|
| 5352 | {
|
---|
| 5353 | ///////////////
|
---|
| 5354 | //-- export bounding boxes
|
---|
| 5355 | //-- The bounding boxes are used to identify
|
---|
| 5356 | //-- the objects in the rendering engine
|
---|
[1614] | 5357 | mHierarchyManager->ExportBoundingBoxes(stream, objects);
|
---|
[580] | 5358 | }
|
---|
[1021] | 5359 |
|
---|
[1415] | 5360 | //////////////////////////
|
---|
[1021] | 5361 | //-- export the view cells and the pvs
|
---|
| 5362 |
|
---|
| 5363 | const int numViewCells = mCurrentViewCellsStats.viewCells;
|
---|
| 5364 |
|
---|
| 5365 | stream << "<ViewCells number=\"" << numViewCells << "\" >" << endl;
|
---|
| 5366 | mViewCellsTree->Export(stream, exportPvs);
|
---|
| 5367 | stream << "</ViewCells>" << endl;
|
---|
| 5368 |
|
---|
[1415] | 5369 | //////////////////////
|
---|
[1201] | 5370 | //-- export the view space hierarchy
|
---|
[1021] | 5371 |
|
---|
[1262] | 5372 | stream << "<ViewSpaceHierarchy type=\"vsp\""
|
---|
| 5373 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
[1286] | 5374 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\">" << endl;
|
---|
[1262] | 5375 |
|
---|
[1278] | 5376 | mHierarchyManager->GetVspTree()->Export(stream);
|
---|
[1286] | 5377 | stream << "</ViewSpaceHierarchy>" << endl;
|
---|
[1021] | 5378 |
|
---|
[1415] | 5379 | //////////////////////
|
---|
[1201] | 5380 | //-- export the object space partition
|
---|
| 5381 |
|
---|
[1278] | 5382 | mHierarchyManager->ExportObjectSpaceHierarchy(stream);
|
---|
| 5383 |
|
---|
[1201] | 5384 | stream << "</VisibilitySolution>" << endl;
|
---|
[1021] | 5385 | stream.close();
|
---|
[1201] | 5386 |
|
---|
[1415] | 5387 | cout << "finished in " << TimeDiff(starttime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[1021] | 5388 | return true;
|
---|
| 5389 | }
|
---|
| 5390 |
|
---|
| 5391 |
|
---|
| 5392 |
|
---|
[1027] | 5393 | ViewCell *VspOspViewCellsManager::GetViewCell(const Vector3 &point,
|
---|
| 5394 | const bool active) const
|
---|
[1021] | 5395 | {
|
---|
| 5396 | if (!ViewCellsConstructed())
|
---|
| 5397 | return NULL;
|
---|
[1588] | 5398 |
|
---|
[1021] | 5399 | if (!mViewSpaceBox.IsInside(point))
|
---|
[1418] | 5400 | return NULL;
|
---|
[1588] | 5401 |
|
---|
[1278] | 5402 | return mHierarchyManager->GetVspTree()->GetViewCell(point, active);
|
---|
[1021] | 5403 | }
|
---|
| 5404 |
|
---|
| 5405 |
|
---|
| 5406 | void VspOspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 5407 | {
|
---|
| 5408 | // matt: TODO
|
---|
| 5409 | Mesh *mesh = MeshManager::GetSingleton()->CreateResource();
|
---|
[1027] | 5410 |
|
---|
| 5411 | ViewCellContainer leaves;
|
---|
| 5412 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 5413 |
|
---|
| 5414 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5415 |
|
---|
| 5416 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 5417 | {
|
---|
[1551] | 5418 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaves[0];
|
---|
[1278] | 5419 | const AxisAlignedBox3 box = mHierarchyManager->GetVspTree()->GetBoundingBox(leaf);
|
---|
[1027] | 5420 | IncludeBoxInMesh(box, *mesh);
|
---|
| 5421 | }
|
---|
| 5422 |
|
---|
[1021] | 5423 | vc->SetMesh(mesh);
|
---|
| 5424 | }
|
---|
| 5425 |
|
---|
| 5426 |
|
---|
| 5427 | int VspOspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 5428 | {
|
---|
| 5429 | // matt: TODO
|
---|
| 5430 | return 0;
|
---|
| 5431 | }
|
---|
| 5432 |
|
---|
| 5433 |
|
---|
| 5434 | void VspOspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 5435 | const bool createMesh)
|
---|
| 5436 | {
|
---|
| 5437 | float area = 0;
|
---|
| 5438 | float volume = 0;
|
---|
| 5439 |
|
---|
| 5440 | ViewCellContainer leaves;
|
---|
| 5441 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 5442 |
|
---|
| 5443 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 5444 |
|
---|
| 5445 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[580] | 5446 | {
|
---|
[1551] | 5447 | VspLeaf *leaf = dynamic_cast<VspViewCell *>(*it)->mLeaves[0];
|
---|
[1027] | 5448 |
|
---|
[1278] | 5449 | const AxisAlignedBox3 box = mHierarchyManager->GetVspTree()->GetBoundingBox(leaf);
|
---|
[1021] | 5450 |
|
---|
[1027] | 5451 | const float lVol = box.GetVolume();
|
---|
| 5452 | const float lArea = box.SurfaceArea();
|
---|
[1021] | 5453 |
|
---|
| 5454 | area += lArea;
|
---|
| 5455 | volume += lVol;
|
---|
| 5456 |
|
---|
| 5457 | CreateMesh(*it);
|
---|
[580] | 5458 | }
|
---|
| 5459 |
|
---|
[1021] | 5460 | viewCell->SetVolume(volume);
|
---|
| 5461 | viewCell->SetArea(area);
|
---|
[580] | 5462 | }
|
---|
[1021] | 5463 |
|
---|
[580] | 5464 |
|
---|
[1159] | 5465 | float VspOspViewCellsManager::ComputeSampleContribution(VssRay &ray,
|
---|
| 5466 | const bool addRays,
|
---|
| 5467 | const bool storeViewCells)
|
---|
| 5468 | {
|
---|
| 5469 | ViewCellContainer viewcells;
|
---|
| 5470 |
|
---|
| 5471 | ray.mPvsContribution = 0;
|
---|
| 5472 | ray.mRelativePvsContribution = 0.0f;
|
---|
| 5473 |
|
---|
| 5474 | static Ray hray;
|
---|
| 5475 | hray.Init(ray);
|
---|
| 5476 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
| 5477 | //Ray hray(ray);
|
---|
| 5478 |
|
---|
| 5479 | float tmin = 0, tmax = 1.0;
|
---|
| 5480 |
|
---|
| 5481 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
| 5482 | return 0;
|
---|
| 5483 |
|
---|
| 5484 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 5485 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 5486 |
|
---|
[1291] | 5487 | ViewCell::NewMail();
|
---|
| 5488 |
|
---|
[1159] | 5489 | // traverse the view space subdivision
|
---|
| 5490 | CastLineSegment(origin, termination, viewcells);
|
---|
| 5491 |
|
---|
| 5492 | if (storeViewCells)
|
---|
[1291] | 5493 | {
|
---|
| 5494 | // copy viewcells memory efficiently
|
---|
[1159] | 5495 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 5496 | ray.mViewCells = viewcells;
|
---|
| 5497 | }
|
---|
| 5498 |
|
---|
| 5499 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
| 5500 |
|
---|
| 5501 | for (; it != viewcells.end(); ++ it)
|
---|
| 5502 | {
|
---|
| 5503 | ViewCell *viewcell = *it;
|
---|
[1566] | 5504 |
|
---|
[1159] | 5505 | if (viewcell->GetValid())
|
---|
[1566] | 5506 | { // if ray not outside of view space
|
---|
[1159] | 5507 | float contribution;
|
---|
| 5508 |
|
---|
| 5509 | if (ray.mTerminationObject)
|
---|
| 5510 | {
|
---|
[1594] | 5511 | // todo: maybe not correct for kd node pvs
|
---|
| 5512 | Intersectable *obj = mHierarchyManager->GetIntersectable(ray, true);
|
---|
| 5513 |
|
---|
| 5514 | if (viewcell->GetPvs().GetSampleContribution(obj,
|
---|
| 5515 | ray.mPdf,
|
---|
| 5516 | contribution))
|
---|
[1159] | 5517 | {
|
---|
[1594] | 5518 | ++ ray.mPvsContribution;
|
---|
[1159] | 5519 | }
|
---|
[1594] | 5520 |
|
---|
| 5521 | ray.mRelativePvsContribution += contribution;
|
---|
[1159] | 5522 | }
|
---|
[1594] | 5523 |
|
---|
[1159] | 5524 | // for directional sampling it is important to count only contributions
|
---|
[1444] | 5525 | // made in one direction!
|
---|
| 5526 | // the other contributions of this sample will be counted for the opposite ray!
|
---|
[1166] | 5527 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[1159] | 5528 | if (ray.mOriginObject &&
|
---|
| 5529 | viewcell->GetPvs().GetSampleContribution(ray.mOriginObject,
|
---|
| 5530 | ray.mPdf,
|
---|
| 5531 | contribution))
|
---|
| 5532 | {
|
---|
| 5533 | ++ ray.mPvsContribution;
|
---|
[1582] | 5534 | ray.mRelativePvsContribution += contribution;
|
---|
[1159] | 5535 | }
|
---|
| 5536 | #endif
|
---|
| 5537 | }
|
---|
| 5538 | }
|
---|
| 5539 |
|
---|
[1259] | 5540 | if (!addRays)
|
---|
[1566] | 5541 | {
|
---|
[1259] | 5542 | return ray.mRelativePvsContribution;
|
---|
[1566] | 5543 | }
|
---|
[1259] | 5544 |
|
---|
| 5545 | // sampled objects are stored in the pvs
|
---|
| 5546 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
[1159] | 5547 | {
|
---|
[1259] | 5548 | ViewCell *viewCell = *it;
|
---|
[1159] | 5549 |
|
---|
[1259] | 5550 | if (!viewCell->GetValid())
|
---|
| 5551 | break;
|
---|
[1159] | 5552 |
|
---|
[1259] | 5553 | AddSampleToPvs(
|
---|
| 5554 | ray.mTerminationObject,
|
---|
| 5555 | ray.mTermination,
|
---|
| 5556 | viewCell,
|
---|
| 5557 | ray.mPdf,
|
---|
| 5558 | ray.mRelativePvsContribution);
|
---|
| 5559 |
|
---|
[1166] | 5560 | #if SAMPLE_ORIGIN_OBJECTS
|
---|
[1168] | 5561 |
|
---|
[1259] | 5562 | AddSampleToPvs(
|
---|
| 5563 | ray.mOriginObject,
|
---|
| 5564 | ray.mOrigin,
|
---|
| 5565 | viewCell,
|
---|
| 5566 | ray.mPdf,
|
---|
| 5567 | ray.mRelativePvsContribution);
|
---|
| 5568 | #endif
|
---|
[1159] | 5569 | }
|
---|
| 5570 |
|
---|
| 5571 | return ray.mRelativePvsContribution;
|
---|
| 5572 | }
|
---|
| 5573 |
|
---|
| 5574 |
|
---|
[1259] | 5575 | bool VspOspViewCellsManager::AddSampleToPvs(Intersectable *obj,
|
---|
| 5576 | const Vector3 &hitPoint,
|
---|
| 5577 | ViewCell *vc,
|
---|
| 5578 | const float pdf,
|
---|
| 5579 | float &contribution) const
|
---|
| 5580 | {
|
---|
[1486] | 5581 | // The hierarchy manager decides about the type of sample cast
|
---|
[1278] | 5582 | return mHierarchyManager->AddSampleToPvs(obj, hitPoint, vc, pdf, contribution);
|
---|
[1259] | 5583 | }
|
---|
| 5584 |
|
---|
| 5585 |
|
---|
[1021] | 5586 | void VspOspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 5587 | {
|
---|
| 5588 | // TODO
|
---|
| 5589 | }
|
---|
[580] | 5590 |
|
---|
[1201] | 5591 |
|
---|
| 5592 | ViewCellsManager *VspOspViewCellsManager::LoadViewCells(const string &filename,
|
---|
| 5593 | ObjectContainer *objects,
|
---|
| 5594 | const bool finalizeViewCells,
|
---|
| 5595 | BoundingBoxConverter *bconverter)
|
---|
| 5596 |
|
---|
| 5597 | {
|
---|
| 5598 | ViewCellsManager *vm =
|
---|
| 5599 | ViewCellsManager::LoadViewCells(filename, objects, finalizeViewCells, bconverter);
|
---|
[1278] | 5600 | #if 0
|
---|
| 5601 | // insert scene objects in tree
|
---|
[1201] | 5602 | mOspTree->InsertObjects(mOspTree->GetRoot(), *objects);
|
---|
[1278] | 5603 | #endif
|
---|
[1201] | 5604 | return vm;
|
---|
| 5605 | }
|
---|
| 5606 |
|
---|
| 5607 |
|
---|
[1184] | 5608 | #if TEST_EVALUATION
|
---|
[1178] | 5609 | void VspOspViewCellsManager::EvalViewCellPartition()
|
---|
| 5610 | {
|
---|
[1570] | 5611 | const int castSamples = (int)storedRays.size();
|
---|
[1178] | 5612 | char s[64];
|
---|
| 5613 | char statsPrefix[100];
|
---|
[1180] | 5614 |
|
---|
[1178] | 5615 | Environment::GetSingleton()->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
| 5616 |
|
---|
| 5617 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 5618 |
|
---|
| 5619 | // should directional sampling be used?
|
---|
[1576] | 5620 | const bool dirSamples = (mEvaluationSamplingType == SamplingStrategy::DIRECTION_BASED_DISTRIBUTION);
|
---|
[1178] | 5621 |
|
---|
| 5622 | cout << "reseting pvs ... ";
|
---|
| 5623 | const bool startFromZero = true;
|
---|
| 5624 |
|
---|
| 5625 | // reset pvs and start over from zero
|
---|
| 5626 | if (startFromZero)
|
---|
| 5627 | {
|
---|
| 5628 | mViewCellsTree->ResetPvs();
|
---|
| 5629 | }
|
---|
[1444] | 5630 | else
|
---|
[1178] | 5631 | {
|
---|
[1444] | 5632 | // start from current sampless
|
---|
[1178] | 5633 | // statistics before casting more samples
|
---|
| 5634 | cout << "compute new statistics ... ";
|
---|
| 5635 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
| 5636 | string fName = string(statsPrefix) + string(s);
|
---|
| 5637 |
|
---|
| 5638 | mViewCellsTree->ExportStats(fName);
|
---|
| 5639 | cout << "finished" << endl;
|
---|
| 5640 | }
|
---|
| 5641 | cout << "finished" << endl;
|
---|
| 5642 |
|
---|
| 5643 | cout << "Evaluating view cell partition ... " << endl;
|
---|
| 5644 |
|
---|
| 5645 | VssRayContainer evaluationSamples = storedRays;
|
---|
| 5646 | const int samplingType = mEvaluationSamplingType;
|
---|
| 5647 |
|
---|
| 5648 | cout << "computing sample contributions of " << (int)evaluationSamples.size() << " samples ... ";
|
---|
[1486] | 5649 |
|
---|
[1178] | 5650 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
[1486] | 5651 |
|
---|
[1178] | 5652 | cout << "finished" << endl;
|
---|
| 5653 |
|
---|
| 5654 | cout << "compute new statistics ... ";
|
---|
[1486] | 5655 |
|
---|
[1221] | 5656 | // propagate pvs or pvs size information
|
---|
[1178] | 5657 | ObjectPvs pvs;
|
---|
| 5658 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
| 5659 |
|
---|
| 5660 |
|
---|
[1486] | 5661 | /////////////////////
|
---|
| 5662 | // $§temporary matt: test render cost
|
---|
| 5663 |
|
---|
[1259] | 5664 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
| 5665 | string fileName = string(statsPrefix) + string(s);
|
---|
[1178] | 5666 |
|
---|
[1259] | 5667 | ViewCellContainer leaves;
|
---|
[1184] | 5668 |
|
---|
[1259] | 5669 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 5670 | float rc = 0;
|
---|
[1421] | 5671 |
|
---|
[1259] | 5672 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
[1421] | 5673 |
|
---|
[1259] | 5674 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
| 5675 | {
|
---|
| 5676 | ViewCell *vc = *vit;
|
---|
[1184] | 5677 | int pvs = vc->GetPvs().CountObjectsInPvs();
|
---|
[1259] | 5678 | float vol = vc->GetVolume();
|
---|
| 5679 | rc += pvs * vol;
|
---|
[1184] | 5680 | }
|
---|
| 5681 |
|
---|
[1576] | 5682 | Debug << "\nrendercost hack: " << rc / mViewSpaceBox.GetVolume() << endl;
|
---|
[1178] | 5683 | mViewCellsTree->ExportStats(fileName);
|
---|
| 5684 | cout << "finished" << endl;
|
---|
| 5685 |
|
---|
[1603] | 5686 | vector<int> storageFunc;
|
---|
| 5687 | mViewCellsTree->GetStorageFunction(storageFunc);
|
---|
| 5688 |
|
---|
| 5689 | vector<float> costFunc;
|
---|
| 5690 | mViewCellsTree->GetCostFunction(costFunc);
|
---|
| 5691 |
|
---|
| 5692 | ofstream outstr("out.txt");
|
---|
| 5693 |
|
---|
| 5694 | for (int i = 0; i < storageFunc.size(); ++ i)
|
---|
| 5695 | outstr << i << ": " << storageFunc[i] << endl;
|
---|
| 5696 | outstr << endl;
|
---|
| 5697 | for (int i = 0; i < costFunc.size(); ++ i)
|
---|
| 5698 | outstr << i << ": " << costFunc[i] << endl;
|
---|
[1588] | 5699 | if (0)
|
---|
| 5700 | for (int i = 0; i <50; ++ i)
|
---|
| 5701 | {
|
---|
| 5702 | Vector3 point = GetViewSpaceBox().GetRandomPoint();
|
---|
| 5703 | ViewCell *vc = GetViewCell(point);
|
---|
| 5704 | }
|
---|
[1589] | 5705 | //RenderBvhNode(mHierarchyManager->mBvHierarchy->GetRoot());
|
---|
| 5706 |
|
---|
[1178] | 5707 | disposeRays(evaluationSamples, NULL);
|
---|
| 5708 | }
|
---|
[580] | 5709 |
|
---|
[1551] | 5710 | #endif
|
---|
[878] | 5711 | }
|
---|