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"
|
---|
10 | #include "VspKdTree.h"
|
---|
11 | #include "Exporter.h"
|
---|
12 | #include "VspBspTree.h"
|
---|
13 | #include "ViewCellsParser.h"
|
---|
14 | #include "Beam.h"
|
---|
15 | #include "VssPreprocessor.h"
|
---|
16 | #include "RssPreprocessor.h"
|
---|
17 |
|
---|
18 |
|
---|
19 |
|
---|
20 | ViewCellsManager::ViewCellsManager():
|
---|
21 | mRenderer(NULL),
|
---|
22 | mInitialSamples(0),
|
---|
23 | mConstructionSamples(0),
|
---|
24 | mPostProcessSamples(0),
|
---|
25 | mVisualizationSamples(0),
|
---|
26 | mTotalAreaValid(false),
|
---|
27 | mTotalArea(0.0f),
|
---|
28 | mViewCellsFinished(false),
|
---|
29 | mMaxPvsSize(9999999),
|
---|
30 | mMinPvsSize(0), // one means only empty view cells are invalid
|
---|
31 | mMaxPvsRatio(1.0)
|
---|
32 | {
|
---|
33 | mViewSpaceBox.Initialize();
|
---|
34 | ParseEnvironment();
|
---|
35 |
|
---|
36 | mViewCellsTree = new ViewCellsTree(this);
|
---|
37 | }
|
---|
38 |
|
---|
39 |
|
---|
40 | void ViewCellsManager::ParseEnvironment()
|
---|
41 | {
|
---|
42 | // visualization stuff
|
---|
43 | environment->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
|
---|
44 | environment->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
|
---|
45 | environment->GetFloatValue("ViewCells.maxPvsRatio", mMaxPvsRatio);
|
---|
46 | bool emptyViewCells = false;
|
---|
47 | environment->GetBoolValue("ViewCells.pruneEmptyViewCells", emptyViewCells);
|
---|
48 | environment->GetBoolValue("ViewCells.processOnlyValidViewCells", mOnlyValidViewCells);
|
---|
49 |
|
---|
50 | environment->GetIntValue("ViewCells.Construction.samples", mConstructionSamples);
|
---|
51 | environment->GetIntValue("ViewCells.PostProcess.samples", mPostProcessSamples);
|
---|
52 | environment->GetIntValue("ViewCells.Visualization.samples", mVisualizationSamples);
|
---|
53 |
|
---|
54 | environment->GetIntValue("ViewCells.Construction.samplesPerPass", mSamplesPerPass);
|
---|
55 | environment->GetBoolValue("ViewCells.exportToFile", mExportViewCells);
|
---|
56 | environment->GetBoolValue("ViewCells.PostProcess.useRaysForMerge", mUseRaysForMerge);
|
---|
57 |
|
---|
58 | environment->GetIntValue("ViewCells.active", mNumMergedViewCells);
|
---|
59 | environment->GetBoolValue("ViewCells.PostProcess.compress", mCompressViewCells);
|
---|
60 |
|
---|
61 | mMinPvsSize = emptyViewCells ? 1 : 0;
|
---|
62 |
|
---|
63 | char buf[50];
|
---|
64 | environment->GetStringValue("ViewCells.Visualization.colorCode", buf);
|
---|
65 |
|
---|
66 | if (strcmp(buf, "PVS") == 0)
|
---|
67 | mColorCode = 1;
|
---|
68 | else if (strcmp(buf, "MergedLeaves") == 0)
|
---|
69 | mColorCode = 2;
|
---|
70 | else if (strcmp(buf, "MergedTreeDiff") == 0)
|
---|
71 | mColorCode = 3;
|
---|
72 | else
|
---|
73 | mColorCode = 0;
|
---|
74 |
|
---|
75 | Debug << "colorCode: " << mColorCode << endl;
|
---|
76 | }
|
---|
77 |
|
---|
78 |
|
---|
79 | ViewCellsManager::~ViewCellsManager()
|
---|
80 | {
|
---|
81 | DEL_PTR(mRenderer);
|
---|
82 | //CLEAR_CONTAINER(mViewCells);
|
---|
83 | DEL_PTR(mViewCellsTree);
|
---|
84 |
|
---|
85 | CLEAR_CONTAINER(mMeshContainer);
|
---|
86 | }
|
---|
87 |
|
---|
88 |
|
---|
89 | int ViewCellsManager::CastPassSamples(const int samplesPerPass,
|
---|
90 | const int sampleType,
|
---|
91 | VssRayContainer &passSamples) const
|
---|
92 | {
|
---|
93 | SimpleRayContainer simpleRays;
|
---|
94 |
|
---|
95 | preprocessor->GenerateRays(samplesPerPass,
|
---|
96 | sampleType,
|
---|
97 | simpleRays);
|
---|
98 |
|
---|
99 | // shoot simple ray and add it to importance samples
|
---|
100 | preprocessor->CastRays(simpleRays, passSamples);
|
---|
101 |
|
---|
102 | return (int)passSamples.size();
|
---|
103 | }
|
---|
104 |
|
---|
105 |
|
---|
106 | /// helper function which destroys rays or copies them into the output ray container
|
---|
107 | inline void addOutRays(VssRayContainer &rays, VssRayContainer *outRays)
|
---|
108 | {
|
---|
109 | cout << "disposing samples ... ";
|
---|
110 | long startTime = GetTime();
|
---|
111 | int n = (int)rays.size();
|
---|
112 |
|
---|
113 | if (outRays)
|
---|
114 | {
|
---|
115 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
116 |
|
---|
117 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
118 | {
|
---|
119 | outRays->push_back(*it);
|
---|
120 | }
|
---|
121 | }
|
---|
122 | else
|
---|
123 | {
|
---|
124 | CLEAR_CONTAINER(rays);
|
---|
125 | }
|
---|
126 | cout << "finished" << endl;
|
---|
127 | Debug << "disposed " << n << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
128 | }
|
---|
129 |
|
---|
130 |
|
---|
131 | int ViewCellsManager::Construct(Preprocessor *preprocessor, VssRayContainer *outRays)
|
---|
132 | {
|
---|
133 | int numSamples = 0;
|
---|
134 | SimpleRayContainer simpleRays;
|
---|
135 |
|
---|
136 | VssRayContainer initialSamples;
|
---|
137 |
|
---|
138 | cout << "view cell construction: casting " << mInitialSamples << " initial samples ... ";
|
---|
139 | //-- construction rays => we use uniform samples for this
|
---|
140 | CastPassSamples(mInitialSamples,
|
---|
141 | //Preprocessor::DIRECTION_BASED_DISTRIBUTION,
|
---|
142 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION,
|
---|
143 | initialSamples);
|
---|
144 |
|
---|
145 | cout << "finished" << endl;
|
---|
146 |
|
---|
147 | // construct view cells
|
---|
148 | const int numInitialSamples =
|
---|
149 | ConstructSubdivision(preprocessor->mObjects, initialSamples);
|
---|
150 |
|
---|
151 | numSamples += numInitialSamples;
|
---|
152 |
|
---|
153 | // rays can be passed or deleted
|
---|
154 | addOutRays(initialSamples, outRays);
|
---|
155 |
|
---|
156 |
|
---|
157 | //-- guided rays are used for further sampling
|
---|
158 | const int n = mConstructionSamples; //+initialSamples;
|
---|
159 |
|
---|
160 | bool dirSamples = false;
|
---|
161 |
|
---|
162 | while (numSamples < n)
|
---|
163 | {
|
---|
164 | cout << "casting " << mSamplesPerPass << " samples ... ";
|
---|
165 | VssRayContainer constructionSamples;
|
---|
166 |
|
---|
167 | const int samplingType =
|
---|
168 | dirSamples ?
|
---|
169 | Preprocessor::DIRECTION_BASED_DISTRIBUTION :
|
---|
170 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
171 |
|
---|
172 | dirSamples = !dirSamples; // toggle sampling method
|
---|
173 | numSamples += CastPassSamples(mSamplesPerPass,
|
---|
174 | samplingType,
|
---|
175 | constructionSamples);
|
---|
176 |
|
---|
177 | cout << "finished" << endl;
|
---|
178 |
|
---|
179 | cout << "computing sample contribution for " << (int)constructionSamples.size() << " samples ... ";
|
---|
180 |
|
---|
181 | // TODO: leak?
|
---|
182 | ComputeSampleContributions(constructionSamples, true, false);
|
---|
183 | cout << "finished" << endl;
|
---|
184 |
|
---|
185 |
|
---|
186 | addOutRays(constructionSamples, outRays);
|
---|
187 |
|
---|
188 | cout << "total samples: " << numSamples << endl;
|
---|
189 | }
|
---|
190 |
|
---|
191 |
|
---|
192 | //-- post processing
|
---|
193 | VssRayContainer postProcessSamples;
|
---|
194 |
|
---|
195 | //-- construction rays => we use uniform samples for this
|
---|
196 | CastPassSamples(mPostProcessSamples,
|
---|
197 | Preprocessor::DIRECTION_BASED_DISTRIBUTION,
|
---|
198 | postProcessSamples);
|
---|
199 |
|
---|
200 | cout << "starting post processing and visualization" << endl;
|
---|
201 |
|
---|
202 | // store viewCells for postprocessing
|
---|
203 | const bool storeViewCells = true;
|
---|
204 | ComputeSampleContributions(postProcessSamples, true, storeViewCells);
|
---|
205 | // merge the view cells
|
---|
206 | PostProcess(preprocessor->mObjects, postProcessSamples);
|
---|
207 |
|
---|
208 |
|
---|
209 | //-- visualization
|
---|
210 | VssRayContainer visualizationSamples;
|
---|
211 |
|
---|
212 | //-- construction rays => we use uniform samples for this
|
---|
213 | CastPassSamples(mVisualizationSamples,
|
---|
214 | Preprocessor::DIRECTION_BASED_DISTRIBUTION,
|
---|
215 | visualizationSamples);
|
---|
216 |
|
---|
217 | ComputeSampleContributions(visualizationSamples, true, storeViewCells);
|
---|
218 |
|
---|
219 | //Debug << "visualizationsamples: " << mVisualizationSamples << " " << visualizationSamples.size() << endl;
|
---|
220 | // different visualizations
|
---|
221 | Visualize(preprocessor->mObjects, visualizationSamples);
|
---|
222 |
|
---|
223 | addOutRays(visualizationSamples, outRays);
|
---|
224 |
|
---|
225 | return numSamples;
|
---|
226 | }
|
---|
227 |
|
---|
228 |
|
---|
229 | bool ViewCellsManager::CheckValidity(ViewCell *vc,
|
---|
230 | int minPvsSize,
|
---|
231 | int maxPvsSize) const
|
---|
232 | {
|
---|
233 |
|
---|
234 | if ((vc->GetPvs().GetSize() > maxPvsSize) ||
|
---|
235 | (vc->GetPvs().GetSize() < minPvsSize))
|
---|
236 | {
|
---|
237 | return false;
|
---|
238 | }
|
---|
239 |
|
---|
240 | return true;
|
---|
241 | }
|
---|
242 |
|
---|
243 |
|
---|
244 | bool ViewCellsManager::ViewCellsTreeConstructed() const
|
---|
245 | {
|
---|
246 | return mViewCellsTree->GetRoot();
|
---|
247 | }
|
---|
248 |
|
---|
249 |
|
---|
250 | void ViewCellsManager::SetValidity(ViewCell *vc,
|
---|
251 | int minPvs,
|
---|
252 | int maxPvs) const
|
---|
253 | {
|
---|
254 | vc->SetValid(CheckValidity(vc, minPvs, maxPvs));
|
---|
255 | }
|
---|
256 |
|
---|
257 |
|
---|
258 | void
|
---|
259 | ViewCellsManager::SetValidity(
|
---|
260 | int minPvsSize,
|
---|
261 | int maxPvsSize) const
|
---|
262 | {
|
---|
263 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
264 |
|
---|
265 | for (it = mViewCells.begin(); it != it_end; ++ it) {
|
---|
266 | SetValidity(*it, minPvsSize, maxPvsSize);
|
---|
267 | }
|
---|
268 | }
|
---|
269 |
|
---|
270 | void
|
---|
271 | ViewCellsManager::SetValidityPercentage(
|
---|
272 | const float minValid,
|
---|
273 | const float maxValid
|
---|
274 | )
|
---|
275 | {
|
---|
276 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
277 |
|
---|
278 | int start = mViewCells.size()*minValid;
|
---|
279 | int end = mViewCells.size()*maxValid;
|
---|
280 |
|
---|
281 | for (int i=0; i < mViewCells.size(); i++)
|
---|
282 | mViewCells[i]->SetValid(i >= start && i <= end);
|
---|
283 | }
|
---|
284 |
|
---|
285 | int
|
---|
286 | ViewCellsManager::CountValidViewcells() const
|
---|
287 | {
|
---|
288 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
289 | int valid = 0;
|
---|
290 | for (it = mViewCells.begin(); it != it_end; ++ it) {
|
---|
291 | if ((*it)->GetValid())
|
---|
292 | valid++;
|
---|
293 | }
|
---|
294 | return valid;
|
---|
295 | }
|
---|
296 |
|
---|
297 |
|
---|
298 | bool ViewCellsManager::LoadViewCellsGeometry(const string filename)
|
---|
299 | {
|
---|
300 | X3dParser parser;
|
---|
301 |
|
---|
302 | environment->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
|
---|
303 |
|
---|
304 | bool success = parser.ParseFile(filename, *this);
|
---|
305 | Debug << (int)mViewCells.size() << " view cells loaded" << endl;
|
---|
306 |
|
---|
307 | return success;
|
---|
308 | }
|
---|
309 |
|
---|
310 |
|
---|
311 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
312 | {
|
---|
313 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
314 |
|
---|
315 | return true;
|
---|
316 | }
|
---|
317 |
|
---|
318 |
|
---|
319 | float ViewCellsManager::GetViewSpaceVolume()
|
---|
320 | {
|
---|
321 | return mViewSpaceBox.GetVolume()*(2.0f*sqr((float)M_PI));
|
---|
322 | }
|
---|
323 |
|
---|
324 |
|
---|
325 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
326 | {
|
---|
327 | if (!ViewCellsConstructed())
|
---|
328 | return mViewSpaceBox.IsInside(viewPoint);
|
---|
329 | else {
|
---|
330 | if (!mViewSpaceBox.IsInside(viewPoint))
|
---|
331 | return false;
|
---|
332 | ViewCell *viewcell = GetViewCell(viewPoint);
|
---|
333 | if (!viewcell || !viewcell->GetValid())
|
---|
334 | return false;
|
---|
335 | }
|
---|
336 | return true;
|
---|
337 | }
|
---|
338 |
|
---|
339 |
|
---|
340 | float
|
---|
341 | ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays,
|
---|
342 | const bool addRays,
|
---|
343 | const bool storeViewCells
|
---|
344 | )
|
---|
345 | {
|
---|
346 | // view cells not yet constructed
|
---|
347 | if (!ViewCellsConstructed())
|
---|
348 | return 0.0f;
|
---|
349 |
|
---|
350 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
351 |
|
---|
352 | float sum = 0.0f;
|
---|
353 | for (it = rays.begin(); it != it_end; ++ it) {
|
---|
354 | sum += ComputeSampleContributions(*(*it), addRays, storeViewCells);
|
---|
355 | //ComputeSampleContributions(*(*it), addRays);
|
---|
356 | // sum += (*it)->mPvsContribution;
|
---|
357 | }
|
---|
358 | return sum;
|
---|
359 | }
|
---|
360 |
|
---|
361 |
|
---|
362 | void ViewCellsManager::EvaluateViewCellsStats()
|
---|
363 | {
|
---|
364 | mViewCellsStats.Reset();
|
---|
365 |
|
---|
366 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
367 |
|
---|
368 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
369 | {
|
---|
370 | (*it)->UpdateViewCellsStats(mViewCellsStats);
|
---|
371 | }
|
---|
372 | }
|
---|
373 |
|
---|
374 |
|
---|
375 | void ViewCellsManager::EvaluateRenderStatistics(float &totalRenderCost,
|
---|
376 | float &expectedRenderCost,
|
---|
377 | float &deviation,
|
---|
378 | float &variance,
|
---|
379 | int &totalPvs,
|
---|
380 | float &avgRenderCost)
|
---|
381 | {
|
---|
382 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
383 |
|
---|
384 |
|
---|
385 | //-- compute expected value
|
---|
386 |
|
---|
387 | totalRenderCost = 0;
|
---|
388 | totalPvs = 0;
|
---|
389 |
|
---|
390 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
391 | {
|
---|
392 | ViewCell *vc = *it;
|
---|
393 | totalRenderCost += vc->GetPvs().GetSize() * vc->GetVolume();
|
---|
394 | totalPvs += (int)vc->GetPvs().GetSize();
|
---|
395 | }
|
---|
396 |
|
---|
397 | // normalize with view space box
|
---|
398 | totalRenderCost /= mViewSpaceBox.GetVolume();
|
---|
399 | expectedRenderCost = totalRenderCost / (float)mViewCells.size();
|
---|
400 | avgRenderCost = totalPvs / (float)mViewCells.size();
|
---|
401 |
|
---|
402 |
|
---|
403 | //-- compute standard defiation
|
---|
404 | variance = 0;
|
---|
405 | deviation = 0;
|
---|
406 |
|
---|
407 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
408 | {
|
---|
409 | ViewCell *vc = *it;
|
---|
410 |
|
---|
411 | float renderCost = vc->GetPvs().GetSize() * vc->GetVolume();
|
---|
412 | float dev;
|
---|
413 |
|
---|
414 | if (1)
|
---|
415 | dev = fabs(avgRenderCost - (float)vc->GetPvs().GetSize());
|
---|
416 | else
|
---|
417 | dev = fabs(expectedRenderCost - renderCost);
|
---|
418 |
|
---|
419 | deviation += dev;
|
---|
420 | variance += dev * dev;
|
---|
421 | }
|
---|
422 |
|
---|
423 | variance /= (float)mViewCells.size();
|
---|
424 | deviation /= (float)mViewCells.size();
|
---|
425 | }
|
---|
426 |
|
---|
427 |
|
---|
428 |
|
---|
429 | void ViewCellsManager::AddViewCell(ViewCell *viewCell)
|
---|
430 | {
|
---|
431 | mViewCells.push_back(viewCell);
|
---|
432 | }
|
---|
433 |
|
---|
434 |
|
---|
435 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
436 | {
|
---|
437 | return viewCell->GetArea();
|
---|
438 | }
|
---|
439 |
|
---|
440 |
|
---|
441 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
|
---|
442 | {
|
---|
443 | return viewCell->GetVolume();
|
---|
444 | }
|
---|
445 |
|
---|
446 |
|
---|
447 | void ViewCellsManager::DeriveViewCells(const ObjectContainer &objects,
|
---|
448 | ViewCellContainer &viewCells,
|
---|
449 | const int maxViewCells) const
|
---|
450 | {
|
---|
451 | // maximal max viewcells
|
---|
452 | int limit = maxViewCells > 0 ?
|
---|
453 | Min((int)objects.size(), maxViewCells) : (int)objects.size();
|
---|
454 |
|
---|
455 | for (int i = 0; i < limit; ++ i)
|
---|
456 | {
|
---|
457 | Intersectable *object = objects[i];
|
---|
458 |
|
---|
459 | // extract the mesh instances
|
---|
460 | if (object->Type() == Intersectable::MESH_INSTANCE)
|
---|
461 | {
|
---|
462 | MeshInstance *inst = dynamic_cast<MeshInstance *>(object);
|
---|
463 |
|
---|
464 | ViewCell *viewCell = GenerateViewCell(inst->GetMesh());
|
---|
465 | viewCells.push_back(viewCell);
|
---|
466 | }
|
---|
467 | //TODO: transformed meshes
|
---|
468 | }
|
---|
469 | }
|
---|
470 |
|
---|
471 |
|
---|
472 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
|
---|
473 | const float height) const
|
---|
474 | {
|
---|
475 | // one mesh per view cell
|
---|
476 | Mesh *mesh = new Mesh();
|
---|
477 |
|
---|
478 | //-- construct prism
|
---|
479 |
|
---|
480 | // bottom
|
---|
481 | mesh->mFaces.push_back(new Face(2,1,0));
|
---|
482 | // top
|
---|
483 | mesh->mFaces.push_back(new Face(3,4,5));
|
---|
484 | // sides
|
---|
485 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
|
---|
486 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
|
---|
487 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
|
---|
488 |
|
---|
489 | //--- extrude new vertices for top of prism
|
---|
490 | Vector3 triNorm = baseTri.GetNormal();
|
---|
491 |
|
---|
492 | Triangle3 topTri;
|
---|
493 |
|
---|
494 | // add base vertices and calculate top vertices
|
---|
495 | for (int i = 0; i < 3; ++ i)
|
---|
496 | mesh->mVertices.push_back(baseTri.mVertices[i]);
|
---|
497 |
|
---|
498 | // add top vertices
|
---|
499 | for (int i = 0; i < 3; ++ i)
|
---|
500 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
|
---|
501 |
|
---|
502 | mesh->Preprocess();
|
---|
503 |
|
---|
504 | return GenerateViewCell(mesh);
|
---|
505 | }
|
---|
506 |
|
---|
507 |
|
---|
508 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
|
---|
509 | {
|
---|
510 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
511 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
512 | {
|
---|
513 | Finalize(*it, createMesh);
|
---|
514 | }
|
---|
515 |
|
---|
516 | mTotalAreaValid = false;
|
---|
517 | }
|
---|
518 |
|
---|
519 |
|
---|
520 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
521 | {
|
---|
522 | // implemented in subclasses
|
---|
523 | }
|
---|
524 |
|
---|
525 |
|
---|
526 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCell *left, ViewCell *right) const
|
---|
527 | {
|
---|
528 | // generate parent view cell
|
---|
529 | ViewCellInterior *vc = new ViewCellInterior();//GenerateViewCell();
|
---|
530 |
|
---|
531 | // merge pvs
|
---|
532 | vc->GetPvs().Merge(left->GetPvs(), right->GetPvs());
|
---|
533 |
|
---|
534 | //-- merge ray sets
|
---|
535 | if (0)
|
---|
536 | {
|
---|
537 | stable_sort(left->mPiercingRays.begin(), left->mPiercingRays.end());
|
---|
538 | stable_sort(right->mPiercingRays.begin(), right->mPiercingRays.end());
|
---|
539 |
|
---|
540 | std::merge(left->mPiercingRays.begin(), left->mPiercingRays.end(),
|
---|
541 | right->mPiercingRays.begin(), right->mPiercingRays.end(),
|
---|
542 | vc->mPiercingRays.begin());
|
---|
543 | }
|
---|
544 |
|
---|
545 |
|
---|
546 | vc->SetupChildLink(left);
|
---|
547 | vc->SetupChildLink(right);
|
---|
548 |
|
---|
549 |
|
---|
550 | return vc;
|
---|
551 | }
|
---|
552 |
|
---|
553 |
|
---|
554 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCellContainer &children) const
|
---|
555 | {
|
---|
556 | ViewCellInterior *vc = new ViewCellInterior();//GenerateViewCell();
|
---|
557 |
|
---|
558 | ViewCellContainer::const_iterator it, it_end = children.end();
|
---|
559 |
|
---|
560 | for (it = children.begin(); it != it_end; ++ it)
|
---|
561 | {
|
---|
562 | // merge pvs
|
---|
563 | vc->GetPvs().Merge(vc->GetPvs(), (*it)->GetPvs());
|
---|
564 |
|
---|
565 | vc->SetupChildLink(*it);
|
---|
566 | }
|
---|
567 |
|
---|
568 | return vc;
|
---|
569 | }
|
---|
570 |
|
---|
571 |
|
---|
572 | void ViewCellsManager::SetRenderer(Renderer *renderer)
|
---|
573 | {
|
---|
574 | mRenderer = renderer;
|
---|
575 | }
|
---|
576 |
|
---|
577 |
|
---|
578 | ViewCellsTree *ViewCellsManager::GetViewCellsTree()
|
---|
579 | {
|
---|
580 | return mViewCellsTree;
|
---|
581 | }
|
---|
582 |
|
---|
583 |
|
---|
584 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
|
---|
585 | {
|
---|
586 | mVisualizationSamples = visSamples;
|
---|
587 | }
|
---|
588 |
|
---|
589 |
|
---|
590 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
|
---|
591 | {
|
---|
592 | mConstructionSamples = constructionSamples;
|
---|
593 | }
|
---|
594 |
|
---|
595 |
|
---|
596 | void ViewCellsManager::SetInitialSamples(const int initialSamples)
|
---|
597 | {
|
---|
598 | mInitialSamples = initialSamples;
|
---|
599 | }
|
---|
600 |
|
---|
601 |
|
---|
602 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
|
---|
603 | {
|
---|
604 | mPostProcessSamples = postProcessSamples;
|
---|
605 | }
|
---|
606 |
|
---|
607 |
|
---|
608 | int ViewCellsManager::GetVisualizationSamples() const
|
---|
609 | {
|
---|
610 | return mVisualizationSamples;
|
---|
611 | }
|
---|
612 |
|
---|
613 |
|
---|
614 | int ViewCellsManager::GetConstructionSamples() const
|
---|
615 | {
|
---|
616 | return mConstructionSamples;
|
---|
617 | }
|
---|
618 |
|
---|
619 |
|
---|
620 | int ViewCellsManager::GetPostProcessSamples() const
|
---|
621 | {
|
---|
622 | return mPostProcessSamples;
|
---|
623 | }
|
---|
624 |
|
---|
625 |
|
---|
626 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
|
---|
627 | {
|
---|
628 | ViewCellContainer::const_iterator it = mViewCells.begin();
|
---|
629 | stat.viewcells = 0;
|
---|
630 | stat.minPvs = 100000000;
|
---|
631 | stat.maxPvs = 0;
|
---|
632 | stat.avgPvs = 0.0f;
|
---|
633 |
|
---|
634 | for (; it != mViewCells.end(); ++it) {
|
---|
635 | ViewCell *viewcell = *it;
|
---|
636 | int pvsSize = viewcell->GetPvs().GetSize();
|
---|
637 | if ( pvsSize < stat.minPvs)
|
---|
638 | stat.minPvs = pvsSize;
|
---|
639 | if (pvsSize > stat.maxPvs)
|
---|
640 | stat.maxPvs = pvsSize;
|
---|
641 | stat.avgPvs += pvsSize;
|
---|
642 | stat.viewcells++;
|
---|
643 | }
|
---|
644 | if (stat.viewcells)
|
---|
645 | stat.avgPvs/=stat.viewcells;
|
---|
646 | }
|
---|
647 |
|
---|
648 |
|
---|
649 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
|
---|
650 | {
|
---|
651 | s<<"############# Viewcell PVS STAT ##################\n";
|
---|
652 | PvsStatistics pvsStat;
|
---|
653 | GetPvsStatistics(pvsStat);
|
---|
654 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
|
---|
655 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
|
---|
656 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
|
---|
657 | }
|
---|
658 |
|
---|
659 |
|
---|
660 | int ViewCellsManager::CastBeam(Beam &beam)
|
---|
661 | {
|
---|
662 | return 0;
|
---|
663 | }
|
---|
664 |
|
---|
665 |
|
---|
666 | ViewCellContainer &ViewCellsManager::GetViewCells()
|
---|
667 | {
|
---|
668 | return mViewCells;
|
---|
669 | }
|
---|
670 |
|
---|
671 |
|
---|
672 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
|
---|
673 | {
|
---|
674 | mViewSpaceBox = box;
|
---|
675 | mTotalAreaValid = false;
|
---|
676 | }
|
---|
677 |
|
---|
678 |
|
---|
679 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
|
---|
680 | {
|
---|
681 | return mViewSpaceBox;
|
---|
682 | }
|
---|
683 |
|
---|
684 |
|
---|
685 | void ViewCellsManager::ResetViewCells()
|
---|
686 | {
|
---|
687 | mViewCells.clear();
|
---|
688 |
|
---|
689 | CollectViewCells();
|
---|
690 |
|
---|
691 | mViewCellsStats.Reset();
|
---|
692 | EvaluateViewCellsStats();
|
---|
693 |
|
---|
694 | // has to be recomputed
|
---|
695 | mTotalAreaValid = false;
|
---|
696 | }
|
---|
697 |
|
---|
698 |
|
---|
699 | int ViewCellsManager::GetMaxPvsSize() const
|
---|
700 | {
|
---|
701 | return mMaxPvsSize;
|
---|
702 | }
|
---|
703 |
|
---|
704 |
|
---|
705 | void
|
---|
706 | ViewCellsManager::AddSampleContributions(const VssRayContainer &rays)
|
---|
707 | {
|
---|
708 | if (!ViewCellsConstructed())
|
---|
709 | return;
|
---|
710 |
|
---|
711 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
712 |
|
---|
713 | for (it = rays.begin(); it != it_end; ++ it) {
|
---|
714 | AddSampleContributions(*(*it));
|
---|
715 | }
|
---|
716 | }
|
---|
717 |
|
---|
718 |
|
---|
719 | int ViewCellsManager::GetMinPvsSize() const
|
---|
720 | {
|
---|
721 | return mMinPvsSize;
|
---|
722 | }
|
---|
723 |
|
---|
724 |
|
---|
725 |
|
---|
726 | float ViewCellsManager::GetMaxPvsRatio() const
|
---|
727 | {
|
---|
728 | return mMaxPvsRatio;
|
---|
729 | }
|
---|
730 |
|
---|
731 |
|
---|
732 | void
|
---|
733 | ViewCellsManager::AddSampleContributions(VssRay &ray)
|
---|
734 | {
|
---|
735 | // assumes viewcells have been stored...
|
---|
736 | ViewCellContainer *viewcells = &ray.mViewCells;
|
---|
737 | ViewCellContainer::const_iterator it;
|
---|
738 | for (it = viewcells->begin(); it != viewcells->end(); ++it) {
|
---|
739 | ViewCell *viewcell = *it;
|
---|
740 | if (viewcell->GetValid()) {
|
---|
741 | // if ray not outside of view space
|
---|
742 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
743 | }
|
---|
744 | }
|
---|
745 | }
|
---|
746 |
|
---|
747 |
|
---|
748 | float ViewCellsManager::ComputeSampleContributions(VssRay &ray,
|
---|
749 | const bool addRays,
|
---|
750 | const bool storeViewCells)
|
---|
751 | {
|
---|
752 | ViewCellContainer viewcells;
|
---|
753 |
|
---|
754 | ray.mPvsContribution = 0;
|
---|
755 | ray.mRelativePvsContribution = 0.0f;
|
---|
756 |
|
---|
757 | static Ray hray;
|
---|
758 | hray.Init(ray);
|
---|
759 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
760 | //Ray hray(ray);
|
---|
761 |
|
---|
762 | float tmin = 0, tmax = 1.0;
|
---|
763 |
|
---|
764 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
765 | return 0;
|
---|
766 |
|
---|
767 | Vector3 origin = hray.Extrap(tmin);
|
---|
768 | Vector3 termination = hray.Extrap(tmax);
|
---|
769 |
|
---|
770 | CastLineSegment(origin, termination, viewcells);
|
---|
771 | //Debug << "constribution: " << (int)viewcells.size() << endl;
|
---|
772 |
|
---|
773 | // copy viewcells memory efficiently
|
---|
774 | //const bool storeViewcells = !addRays;
|
---|
775 |
|
---|
776 | if (storeViewCells)
|
---|
777 | {
|
---|
778 | ray.mViewCells.reserve(viewcells.size());
|
---|
779 | ray.mViewCells = viewcells;
|
---|
780 | }
|
---|
781 |
|
---|
782 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
783 |
|
---|
784 |
|
---|
785 | for (; it != viewcells.end(); ++it) {
|
---|
786 | ViewCell *viewcell = *it;
|
---|
787 | if (viewcell->GetValid()) {
|
---|
788 | // if ray not outside of view space
|
---|
789 | float contribution;
|
---|
790 | if (viewcell->GetPvs().GetSampleContribution(ray.mTerminationObject,
|
---|
791 | ray.mPdf,
|
---|
792 | contribution
|
---|
793 | ))
|
---|
794 | ray.mPvsContribution++;
|
---|
795 | ray.mRelativePvsContribution += contribution;
|
---|
796 | }
|
---|
797 | }
|
---|
798 |
|
---|
799 | if (addRays)
|
---|
800 | for (it = viewcells.begin(); it != viewcells.end(); ++it) {
|
---|
801 | ViewCell *viewcell = *it;
|
---|
802 | if (viewcell->GetValid()) {
|
---|
803 | // if ray not outside of view space
|
---|
804 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
805 | }
|
---|
806 | }
|
---|
807 |
|
---|
808 | return ray.mRelativePvsContribution;
|
---|
809 | }
|
---|
810 |
|
---|
811 |
|
---|
812 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
813 | const int maxSize,
|
---|
814 | VssRayContainer &usedRays,
|
---|
815 | VssRayContainer *savedRays) const
|
---|
816 | {
|
---|
817 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
818 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
819 |
|
---|
820 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
821 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
822 | {
|
---|
823 | if (Random(1.0f) < prop)
|
---|
824 | usedRays.push_back(*it);
|
---|
825 | else if (savedRays)
|
---|
826 | savedRays->push_back(*it);
|
---|
827 | }
|
---|
828 | }
|
---|
829 |
|
---|
830 |
|
---|
831 | float ViewCellsManager::GetAccVcArea()
|
---|
832 | {
|
---|
833 | // if already computed
|
---|
834 | if (mTotalAreaValid)
|
---|
835 | return mTotalArea;
|
---|
836 |
|
---|
837 | mTotalArea = 0;
|
---|
838 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
839 |
|
---|
840 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
841 | {
|
---|
842 | //Debug << "area: " << GetArea(*it);
|
---|
843 | mTotalArea += GetArea(*it);
|
---|
844 | }
|
---|
845 |
|
---|
846 | mTotalAreaValid = true;
|
---|
847 |
|
---|
848 | return mTotalArea;
|
---|
849 | }
|
---|
850 |
|
---|
851 |
|
---|
852 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
853 | {
|
---|
854 | s << mViewCellsStats << endl;
|
---|
855 | }
|
---|
856 |
|
---|
857 |
|
---|
858 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
859 | {
|
---|
860 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
861 | mViewCells[i]->SetId(i);
|
---|
862 | }
|
---|
863 |
|
---|
864 |
|
---|
865 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter) const
|
---|
866 | {
|
---|
867 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
868 |
|
---|
869 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
870 | {
|
---|
871 | if (!mOnlyValidViewCells || (*it)->GetValid())
|
---|
872 | {
|
---|
873 | ExportColor(exporter, *it);
|
---|
874 | ExportViewCellGeometry(exporter, *it);
|
---|
875 | }
|
---|
876 | }
|
---|
877 |
|
---|
878 | }
|
---|
879 |
|
---|
880 |
|
---|
881 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
882 | {
|
---|
883 | // convert to meshes
|
---|
884 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
885 |
|
---|
886 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
887 | {
|
---|
888 | if (!(*it)->GetMesh())
|
---|
889 | CreateMesh(*it);
|
---|
890 | }
|
---|
891 | }
|
---|
892 |
|
---|
893 |
|
---|
894 | bool ViewCellsManager::ExportViewCells(const string filename)
|
---|
895 | {
|
---|
896 | return false;
|
---|
897 | }
|
---|
898 |
|
---|
899 |
|
---|
900 | void ViewCellsManager::ExportViewCell(ViewCell *viewCell, ofstream &stream)
|
---|
901 | {
|
---|
902 | stream << "<ViewCell id=\"" << viewCell->GetId() << "\" ";
|
---|
903 | stream << "pvs=\"";
|
---|
904 |
|
---|
905 | ObjectPvsMap::iterator it, it_end = viewCell->GetPvs().mEntries.end();
|
---|
906 | if(0) // test with empty pvs
|
---|
907 | for (it = viewCell->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
908 | {
|
---|
909 | stream << (*it).first->GetId() << " ";
|
---|
910 | }
|
---|
911 |
|
---|
912 | stream << "\" />" << endl;
|
---|
913 | }
|
---|
914 |
|
---|
915 |
|
---|
916 | /**********************************************************************/
|
---|
917 | /* BspViewCellsManager implementation */
|
---|
918 | /**********************************************************************/
|
---|
919 |
|
---|
920 |
|
---|
921 | BspViewCellsManager::BspViewCellsManager(BspTree *bspTree):
|
---|
922 | ViewCellsManager(), mBspTree(bspTree)
|
---|
923 | {
|
---|
924 | environment->GetIntValue("BspTree.Construction.samples", mInitialSamples);
|
---|
925 | mBspTree->SetViewCellsManager(this);
|
---|
926 | mBspTree->mViewCellsTree = mViewCellsTree;
|
---|
927 | }
|
---|
928 |
|
---|
929 |
|
---|
930 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
931 | {
|
---|
932 | return mBspTree->GetRoot() != NULL;
|
---|
933 | }
|
---|
934 |
|
---|
935 |
|
---|
936 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
937 | {
|
---|
938 | return new BspViewCell(mesh);
|
---|
939 | }
|
---|
940 |
|
---|
941 |
|
---|
942 | int BspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
943 | const VssRayContainer &rays)
|
---|
944 | {
|
---|
945 | // if view cells were already constructed
|
---|
946 | if (ViewCellsConstructed())
|
---|
947 | return 0;
|
---|
948 |
|
---|
949 | int sampleContributions = 0;
|
---|
950 |
|
---|
951 | // construct view cells using the collected samples
|
---|
952 | RayContainer constructionRays;
|
---|
953 | VssRayContainer savedRays;
|
---|
954 |
|
---|
955 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
956 |
|
---|
957 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
958 |
|
---|
959 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
960 |
|
---|
961 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
962 | {
|
---|
963 | if (Random(1.0f) < prop)
|
---|
964 | constructionRays.push_back(new Ray(*(*it)));
|
---|
965 | else
|
---|
966 | savedRays.push_back(*it);
|
---|
967 | }
|
---|
968 |
|
---|
969 | if (mViewCells.empty())
|
---|
970 | {
|
---|
971 | // no view cells loaded
|
---|
972 | mBspTree->Construct(objects, constructionRays, &mViewSpaceBox);
|
---|
973 | // collect final view cells
|
---|
974 | mBspTree->CollectViewCells(mViewCells);
|
---|
975 | }
|
---|
976 | else
|
---|
977 | {
|
---|
978 | mBspTree->Construct(mViewCells);
|
---|
979 | }
|
---|
980 |
|
---|
981 | // destroy rays created only for construction
|
---|
982 | CLEAR_CONTAINER(constructionRays);
|
---|
983 |
|
---|
984 | Debug << mBspTree->GetStatistics() << endl;
|
---|
985 |
|
---|
986 | //EvaluateViewCellsStats();
|
---|
987 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
988 |
|
---|
989 | // recast rest of the rays
|
---|
990 | ComputeSampleContributions(savedRays, true, false);
|
---|
991 |
|
---|
992 |
|
---|
993 | ResetViewCells();
|
---|
994 |
|
---|
995 | Debug << "\nView cells after " << (int)savedRays.size()
|
---|
996 | << " samples:\n" << mViewCellsStats << endl;
|
---|
997 |
|
---|
998 | if (1) // export initial view cells
|
---|
999 | {
|
---|
1000 | cout << "exporting initial view cells (=leaves) ... ";
|
---|
1001 | Exporter *exporter = Exporter::GetExporter("view_cells.x3d");
|
---|
1002 |
|
---|
1003 | if (exporter)
|
---|
1004 | {
|
---|
1005 | //exporter->SetWireframe();
|
---|
1006 | exporter->SetFilled();
|
---|
1007 | ExportViewCellsForViz(exporter);
|
---|
1008 |
|
---|
1009 | if (0 && mExportRays)
|
---|
1010 | exporter->ExportRays(rays, RgbColor(1, 1, 1));
|
---|
1011 |
|
---|
1012 | if (mExportGeometry)
|
---|
1013 | exporter->ExportGeometry(objects);
|
---|
1014 |
|
---|
1015 | delete exporter;
|
---|
1016 | }
|
---|
1017 | cout << "finished" << endl;
|
---|
1018 | }
|
---|
1019 |
|
---|
1020 |
|
---|
1021 | return sampleContributions;
|
---|
1022 | }
|
---|
1023 |
|
---|
1024 |
|
---|
1025 | void BspViewCellsManager::CollectViewCells()
|
---|
1026 | {
|
---|
1027 | // view cells tree constructed
|
---|
1028 | if (!ViewCellsTreeConstructed())
|
---|
1029 | {
|
---|
1030 |
|
---|
1031 | mBspTree->CollectViewCells(mViewCells);
|
---|
1032 | }
|
---|
1033 | else
|
---|
1034 | {
|
---|
1035 |
|
---|
1036 | // we can use the view cells tree hierarchy to get the right set
|
---|
1037 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumMergedViewCells);
|
---|
1038 | }
|
---|
1039 | }
|
---|
1040 |
|
---|
1041 |
|
---|
1042 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
1043 | {
|
---|
1044 | // compute view cell area as subsititute for probability
|
---|
1045 | #if 1
|
---|
1046 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
1047 | #else
|
---|
1048 | return GetArea(viewCell) / GetAccVcArea();
|
---|
1049 | #endif
|
---|
1050 | }
|
---|
1051 |
|
---|
1052 |
|
---|
1053 | float BspViewCellsManager::GetRendercost(ViewCell *viewCell,
|
---|
1054 | float objRendercost) const
|
---|
1055 | {
|
---|
1056 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
1057 | }
|
---|
1058 |
|
---|
1059 |
|
---|
1060 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
1061 | const Vector3 &termination,
|
---|
1062 | ViewCellContainer &viewcells)
|
---|
1063 | {
|
---|
1064 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
1065 | }
|
---|
1066 |
|
---|
1067 |
|
---|
1068 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
1069 | const VssRayContainer &rays)
|
---|
1070 | {
|
---|
1071 | if (!ViewCellsConstructed())
|
---|
1072 | {
|
---|
1073 | Debug << "view cells not constructed" << endl;
|
---|
1074 | return 0;
|
---|
1075 | }
|
---|
1076 |
|
---|
1077 |
|
---|
1078 | // view cells already finished before post processing step (i.e. because they were loaded)
|
---|
1079 | if (mViewCellsFinished)
|
---|
1080 | {
|
---|
1081 | FinalizeViewCells(true);
|
---|
1082 | EvaluateViewCellsStats();
|
---|
1083 |
|
---|
1084 | return 0;
|
---|
1085 | }
|
---|
1086 |
|
---|
1087 | //-- post processing of bsp view cells
|
---|
1088 | int vcSize = 0;
|
---|
1089 | int pvsSize = 0;
|
---|
1090 |
|
---|
1091 | EvaluateViewCellsStats();
|
---|
1092 | Debug << "\noriginal view cell partition:\n" << mViewCellsStats << endl;
|
---|
1093 |
|
---|
1094 | mRenderer->RenderScene();
|
---|
1095 | SimulationStatistics ss;
|
---|
1096 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
1097 |
|
---|
1098 | Debug << ss << endl;
|
---|
1099 |
|
---|
1100 | if (1) // export view cells
|
---|
1101 | {
|
---|
1102 | cout << "exporting initial view cells (=leaves) ... ";
|
---|
1103 | Exporter *exporter = Exporter::GetExporter("view_cells.x3d");
|
---|
1104 |
|
---|
1105 | if (exporter)
|
---|
1106 | {
|
---|
1107 | //exporter->SetWireframe();
|
---|
1108 | exporter->SetFilled();
|
---|
1109 | ExportViewCellsForViz(exporter);
|
---|
1110 |
|
---|
1111 | if (mExportGeometry)
|
---|
1112 | {
|
---|
1113 | Material m;
|
---|
1114 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
1115 | exporter->SetForcedMaterial(m);
|
---|
1116 |
|
---|
1117 | exporter->SetWireframe();
|
---|
1118 |
|
---|
1119 | exporter->ExportGeometry(objects);
|
---|
1120 | }
|
---|
1121 |
|
---|
1122 | delete exporter;
|
---|
1123 | }
|
---|
1124 | cout << "finished" << endl;
|
---|
1125 | }
|
---|
1126 |
|
---|
1127 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
1128 |
|
---|
1129 | long startTime = GetTime();
|
---|
1130 |
|
---|
1131 | VssRayContainer postProcessRays;
|
---|
1132 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
1133 |
|
---|
1134 | //-- merge or subdivide view cells
|
---|
1135 | int merged = mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
1136 |
|
---|
1137 | //-- stats and visualizations
|
---|
1138 | cout << "finished" << endl;
|
---|
1139 | cout << "merged " << merged << " view cells in "
|
---|
1140 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
1141 |
|
---|
1142 | Debug << "Postprocessing: Merged " << merged << " view cells in "
|
---|
1143 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs"
|
---|
1144 | << "using " << (int)rays.size() << " samples" << endl << endl;
|
---|
1145 |
|
---|
1146 |
|
---|
1147 | // reset view cells and stats
|
---|
1148 | ResetViewCells();
|
---|
1149 | FinalizeViewCells(true);
|
---|
1150 |
|
---|
1151 | // HACK: removes view cells in bsp leaves with active ones
|
---|
1152 | if (0)
|
---|
1153 | AddCurrentViewCellsToHierarchy();
|
---|
1154 |
|
---|
1155 | // write view cells to disc
|
---|
1156 | if (mExportViewCells)
|
---|
1157 | {
|
---|
1158 | char buff[100];
|
---|
1159 | environment->GetStringValue("ViewCells.filename", buff);
|
---|
1160 | string vcFilename(buff);
|
---|
1161 |
|
---|
1162 | ExportViewCells(buff);
|
---|
1163 | }
|
---|
1164 |
|
---|
1165 | return merged;
|
---|
1166 | }
|
---|
1167 |
|
---|
1168 |
|
---|
1169 | BspViewCellsManager::~BspViewCellsManager()
|
---|
1170 | {
|
---|
1171 | }
|
---|
1172 |
|
---|
1173 |
|
---|
1174 | int BspViewCellsManager::GetType() const
|
---|
1175 | {
|
---|
1176 | return BSP;
|
---|
1177 | }
|
---|
1178 |
|
---|
1179 |
|
---|
1180 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
1181 | const VssRayContainer &sampleRays)
|
---|
1182 | {
|
---|
1183 | if (!ViewCellsConstructed())
|
---|
1184 | return;
|
---|
1185 |
|
---|
1186 | //BspLeaf::NewMail();
|
---|
1187 | if (1) // export merged view cells
|
---|
1188 | {
|
---|
1189 |
|
---|
1190 | cout << "reseting view cells ... ";
|
---|
1191 | ResetViewCells();
|
---|
1192 |
|
---|
1193 | cout << "finished" << endl;
|
---|
1194 |
|
---|
1195 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.x3d");
|
---|
1196 | Debug << "\nView cells after merge:\n" << mViewCellsStats << endl;
|
---|
1197 |
|
---|
1198 | cout << "exporting view cells after merge ... ";
|
---|
1199 |
|
---|
1200 | if (exporter)
|
---|
1201 | {
|
---|
1202 | if (0)
|
---|
1203 | exporter->SetWireframe();
|
---|
1204 | else
|
---|
1205 | exporter->SetFilled();
|
---|
1206 |
|
---|
1207 | ExportViewCellsForViz(exporter);
|
---|
1208 |
|
---|
1209 | if (mExportGeometry)
|
---|
1210 | {
|
---|
1211 | Material m;
|
---|
1212 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
1213 | exporter->SetForcedMaterial(m);
|
---|
1214 | exporter->SetFilled();
|
---|
1215 |
|
---|
1216 | exporter->ExportGeometry(objects);
|
---|
1217 | }
|
---|
1218 |
|
---|
1219 | delete exporter;
|
---|
1220 | }
|
---|
1221 | cout << "finished" << endl;
|
---|
1222 | }
|
---|
1223 |
|
---|
1224 | //-- visualization of the BSP splits
|
---|
1225 | bool exportSplits = false;
|
---|
1226 | environment->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
1227 |
|
---|
1228 | if (exportSplits)
|
---|
1229 | {
|
---|
1230 | cout << "exporting splits ... ";
|
---|
1231 | ExportSplits(objects);
|
---|
1232 | cout << "finished" << endl;
|
---|
1233 | }
|
---|
1234 |
|
---|
1235 | ExportBspPvs(objects);
|
---|
1236 | }
|
---|
1237 |
|
---|
1238 |
|
---|
1239 | inline bool vc_gt(ViewCell *a, ViewCell *b)
|
---|
1240 | {
|
---|
1241 | return a->GetPvs().GetSize() > b->GetPvs().GetSize();
|
---|
1242 | }
|
---|
1243 |
|
---|
1244 |
|
---|
1245 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
1246 | {
|
---|
1247 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
1248 |
|
---|
1249 | if (exporter)
|
---|
1250 | {
|
---|
1251 | Material m;
|
---|
1252 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1253 | exporter->SetForcedMaterial(m);
|
---|
1254 | exporter->SetWireframe();
|
---|
1255 |
|
---|
1256 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
1257 |
|
---|
1258 | //NOTE: take forced material, else big scenes cannot be viewed
|
---|
1259 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
1260 | exporter->SetForcedMaterial(m);
|
---|
1261 | //exporter->ResetForcedMaterial();
|
---|
1262 |
|
---|
1263 | exporter->SetFilled();
|
---|
1264 |
|
---|
1265 | if (mExportGeometry)
|
---|
1266 | exporter->ExportGeometry(objects);
|
---|
1267 |
|
---|
1268 | delete exporter;
|
---|
1269 | }
|
---|
1270 | }
|
---|
1271 |
|
---|
1272 |
|
---|
1273 | void BspViewCellsManager::ExportBspPvs(const ObjectContainer &objects)
|
---|
1274 | {
|
---|
1275 | const int leafOut = 10;
|
---|
1276 |
|
---|
1277 | ViewCell::NewMail();
|
---|
1278 |
|
---|
1279 | //-- some rays for output
|
---|
1280 | const int raysOut = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
1281 |
|
---|
1282 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
1283 | Debug << "\nOutput view cells: " << endl;
|
---|
1284 |
|
---|
1285 | // sort view cells to get largest view cells
|
---|
1286 | if (0)
|
---|
1287 | stable_sort(mViewCells.begin(), mViewCells.end(), vc_gt);
|
---|
1288 |
|
---|
1289 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
1290 |
|
---|
1291 | for (int i = 0; i < limit; ++ i)
|
---|
1292 | {
|
---|
1293 | cout << "creating output for view cell " << i << " ... ";
|
---|
1294 | VssRayContainer vcRays;
|
---|
1295 | Intersectable::NewMail();
|
---|
1296 | ViewCell *vc;
|
---|
1297 |
|
---|
1298 | if (0)
|
---|
1299 | vc = mViewCells[i];
|
---|
1300 | else
|
---|
1301 | vc = mViewCells[Random((int)mViewCells.size())];
|
---|
1302 |
|
---|
1303 | cout << "creating output for view cell " << i << " ... ";
|
---|
1304 |
|
---|
1305 | if(0)
|
---|
1306 | {
|
---|
1307 | // check whether we can add the current ray to the output rays
|
---|
1308 | for (int k = 0; k < raysOut; ++ k)
|
---|
1309 | {
|
---|
1310 | BspRay *ray = mBspRays[k];
|
---|
1311 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
1312 | {
|
---|
1313 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
1314 | if (vc == leaf->GetViewCell())
|
---|
1315 | vcRays.push_back(ray->vssRay);
|
---|
1316 | }
|
---|
1317 | }
|
---|
1318 | }
|
---|
1319 |
|
---|
1320 | //bspLeaves[j]->Mail();
|
---|
1321 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
1322 |
|
---|
1323 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1324 |
|
---|
1325 | exporter->SetWireframe();
|
---|
1326 |
|
---|
1327 | Material m;//= RandomMaterial();
|
---|
1328 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
1329 | exporter->SetForcedMaterial(m);
|
---|
1330 |
|
---|
1331 | ExportViewCellGeometry(exporter, vc);
|
---|
1332 |
|
---|
1333 |
|
---|
1334 | Debug << i << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc)
|
---|
1335 | << ", piercing rays=" << (int)vcRays.size() << endl;
|
---|
1336 | // << ", leaves=" << (int)vc->mLeaves.size() << endl;
|
---|
1337 |
|
---|
1338 |
|
---|
1339 | // export rays piercing this view cell
|
---|
1340 | exporter->ExportRays(vcRays, RgbColor(0, 1, 0));
|
---|
1341 |
|
---|
1342 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1343 | exporter->SetForcedMaterial(m);
|
---|
1344 |
|
---|
1345 | ObjectPvsMap::const_iterator it,
|
---|
1346 | it_end = vc->GetPvs().mEntries.end();
|
---|
1347 |
|
---|
1348 | exporter->SetFilled();
|
---|
1349 |
|
---|
1350 | // output PVS of view cell
|
---|
1351 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
1352 | {
|
---|
1353 | Intersectable *intersect = (*it).first;
|
---|
1354 |
|
---|
1355 | if (!intersect->Mailed())
|
---|
1356 | {
|
---|
1357 | Material m = RandomMaterial();
|
---|
1358 | exporter->SetForcedMaterial(m);
|
---|
1359 |
|
---|
1360 | exporter->ExportIntersectable(intersect);
|
---|
1361 | intersect->Mail();
|
---|
1362 | }
|
---|
1363 | }
|
---|
1364 |
|
---|
1365 | DEL_PTR(exporter);
|
---|
1366 | cout << "finished" << endl;
|
---|
1367 | }
|
---|
1368 |
|
---|
1369 | Debug << endl;
|
---|
1370 | }
|
---|
1371 |
|
---|
1372 |
|
---|
1373 | void BspViewCellsManager::ExportColor(Exporter *exporter,
|
---|
1374 | ViewCell *vc) const
|
---|
1375 | {
|
---|
1376 | if (mColorCode == 0) // Random color
|
---|
1377 | {
|
---|
1378 | exporter->ResetForcedMaterial();
|
---|
1379 | return;
|
---|
1380 | }
|
---|
1381 |
|
---|
1382 | float importance = 0;
|
---|
1383 |
|
---|
1384 | switch (mColorCode)
|
---|
1385 | {
|
---|
1386 | case 1: // pvs
|
---|
1387 | {
|
---|
1388 | importance = (float)vc->GetPvs().GetSize() /
|
---|
1389 | (float)mViewCellsStats.maxPvs;
|
---|
1390 | }
|
---|
1391 | break;
|
---|
1392 | case 2: // merges
|
---|
1393 | {
|
---|
1394 | importance = (float)mViewCellsTree->GetSize(vc) /
|
---|
1395 | (float)mViewCellsStats.maxLeaves;
|
---|
1396 | }
|
---|
1397 | break;
|
---|
1398 | case 3: // merge tree differene
|
---|
1399 | {
|
---|
1400 | // TODO
|
---|
1401 | }
|
---|
1402 | break;
|
---|
1403 | default:
|
---|
1404 | break;
|
---|
1405 | }
|
---|
1406 |
|
---|
1407 | Material m;
|
---|
1408 | m.mDiffuseColor.b = 1.0f;
|
---|
1409 | m.mDiffuseColor.r = importance;
|
---|
1410 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
1411 |
|
---|
1412 | exporter->SetForcedMaterial(m);
|
---|
1413 | }
|
---|
1414 |
|
---|
1415 |
|
---|
1416 | void BspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
1417 | ViewCell *vc) const
|
---|
1418 | {
|
---|
1419 | if (vc->GetMesh())
|
---|
1420 | {
|
---|
1421 | exporter->ExportMesh(vc->GetMesh());
|
---|
1422 | return;
|
---|
1423 | }
|
---|
1424 |
|
---|
1425 | BspNodeGeometry geom;
|
---|
1426 | mBspTree->ConstructGeometry(vc, geom);
|
---|
1427 | exporter->ExportPolygons(geom.mPolys);
|
---|
1428 | }
|
---|
1429 |
|
---|
1430 |
|
---|
1431 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
1432 | {
|
---|
1433 | if (vc->GetMesh())
|
---|
1434 | delete vc->GetMesh();
|
---|
1435 |
|
---|
1436 | BspNodeGeometry geom;
|
---|
1437 |
|
---|
1438 | mBspTree->ConstructGeometry(vc, geom);
|
---|
1439 |
|
---|
1440 | Mesh *mesh = new Mesh();
|
---|
1441 | geom.AddToMesh(*mesh);
|
---|
1442 | vc->SetMesh(mesh);
|
---|
1443 | mMeshContainer.push_back(mesh);
|
---|
1444 | }
|
---|
1445 |
|
---|
1446 |
|
---|
1447 | void BspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
1448 | const bool createMesh)
|
---|
1449 | {
|
---|
1450 | CreateMesh(viewCell);
|
---|
1451 |
|
---|
1452 | float area = 0;
|
---|
1453 | float volume = 0;
|
---|
1454 |
|
---|
1455 | ViewCellContainer leaves;
|
---|
1456 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
1457 |
|
---|
1458 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
1459 |
|
---|
1460 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
1461 | {
|
---|
1462 | BspNodeGeometry geom;
|
---|
1463 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
1464 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
1465 |
|
---|
1466 | area += geom.GetArea();
|
---|
1467 | volume += geom.GetVolume();
|
---|
1468 | }
|
---|
1469 |
|
---|
1470 | viewCell->SetVolume(volume);
|
---|
1471 | viewCell->SetArea(area);
|
---|
1472 | }
|
---|
1473 |
|
---|
1474 |
|
---|
1475 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point) const
|
---|
1476 | {
|
---|
1477 | if (!mBspTree)
|
---|
1478 | return NULL;
|
---|
1479 |
|
---|
1480 | if (!mViewSpaceBox.IsInside(point))
|
---|
1481 | return NULL;
|
---|
1482 |
|
---|
1483 | return mBspTree->GetViewCell(point);
|
---|
1484 | }
|
---|
1485 |
|
---|
1486 |
|
---|
1487 | void BspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
1488 | vector<MergeCandidate> &candidates)
|
---|
1489 | {
|
---|
1490 | cout << "collecting merge candidates ... " << endl;
|
---|
1491 |
|
---|
1492 | if (mUseRaysForMerge)
|
---|
1493 | {
|
---|
1494 | mBspTree->CollectMergeCandidates(rays, candidates);
|
---|
1495 | }
|
---|
1496 | else
|
---|
1497 | {
|
---|
1498 | vector<BspLeaf *> leaves;
|
---|
1499 | mBspTree->CollectLeaves(leaves);
|
---|
1500 | mBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
1501 | }
|
---|
1502 |
|
---|
1503 | cout << "fininshed collecting candidates" << endl;
|
---|
1504 | }
|
---|
1505 |
|
---|
1506 |
|
---|
1507 |
|
---|
1508 | bool BspViewCellsManager::ExportViewCells(const string filename)
|
---|
1509 | {
|
---|
1510 | cout << "exporting view cells to xml ... ";
|
---|
1511 | std::ofstream stream;
|
---|
1512 |
|
---|
1513 | // for output we need unique ids for each view cell
|
---|
1514 | CreateUniqueViewCellIds();
|
---|
1515 |
|
---|
1516 |
|
---|
1517 | stream.open(filename.c_str());
|
---|
1518 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
1519 | stream << "<Visibility_Solution>" << endl;
|
---|
1520 |
|
---|
1521 | //-- the view space bounding box
|
---|
1522 | stream << "<ViewSpaceBox"
|
---|
1523 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
1524 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
1525 |
|
---|
1526 | //-- the type of the view cells hierarchy
|
---|
1527 | //stream << "<Hierarchy name=\"bspTree\" />" << endl;
|
---|
1528 | stream << "<Hierarchy name=\"vspBspTree\" />" << endl; // write vsp bsp here because can use same tree and is bug free
|
---|
1529 | //-- load the view cells itself, i.e., the ids and the pvs
|
---|
1530 | stream << "<ViewCells>" << endl;
|
---|
1531 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
1532 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
1533 | ExportViewCell(*it, stream);
|
---|
1534 |
|
---|
1535 | stream << "</ViewCells>" << endl;
|
---|
1536 |
|
---|
1537 | //-- load the hierarchy
|
---|
1538 | stream << "<Hierarchy>" << endl;
|
---|
1539 | mBspTree->Export(stream);
|
---|
1540 | stream << endl << "</Hierarchy>" << endl;
|
---|
1541 |
|
---|
1542 | stream << "</Visibility_Solution>" << endl;
|
---|
1543 | stream.close();
|
---|
1544 |
|
---|
1545 | cout << "finished" << endl;
|
---|
1546 |
|
---|
1547 | return true;
|
---|
1548 | }
|
---|
1549 |
|
---|
1550 |
|
---|
1551 | void BspViewCellsManager::AddCurrentViewCellsToHierarchy()
|
---|
1552 | {
|
---|
1553 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
1554 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
1555 | {
|
---|
1556 | ViewCell *vc = *it;
|
---|
1557 | ViewCellContainer leaves;
|
---|
1558 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
1559 |
|
---|
1560 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
1561 |
|
---|
1562 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
1563 | {
|
---|
1564 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(*lit);
|
---|
1565 | bspVc->mLeaf->SetViewCell(vc);
|
---|
1566 | }
|
---|
1567 | }
|
---|
1568 | }
|
---|
1569 |
|
---|
1570 | /************************************************************************/
|
---|
1571 | /* KdViewCellsManager implementation */
|
---|
1572 | /************************************************************************/
|
---|
1573 |
|
---|
1574 |
|
---|
1575 |
|
---|
1576 | KdViewCellsManager::KdViewCellsManager(KdTree *kdTree):
|
---|
1577 | ViewCellsManager(), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
1578 | {
|
---|
1579 | }
|
---|
1580 |
|
---|
1581 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
1582 | {
|
---|
1583 | // compute view cell area / volume as subsititute for probability
|
---|
1584 | #if 0
|
---|
1585 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
1586 | #endif
|
---|
1587 | #if 1
|
---|
1588 | return GetArea(viewCell) / GetAccVcArea();
|
---|
1589 | #endif
|
---|
1590 | #if 0
|
---|
1591 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
1592 | #endif
|
---|
1593 | }
|
---|
1594 |
|
---|
1595 |
|
---|
1596 | float KdViewCellsManager::GetRendercost(ViewCell *viewCell, float objRendercost) const
|
---|
1597 | {
|
---|
1598 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
1599 | }
|
---|
1600 |
|
---|
1601 |
|
---|
1602 | void KdViewCellsManager::CollectViewCells()
|
---|
1603 | {
|
---|
1604 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
1605 | }
|
---|
1606 |
|
---|
1607 |
|
---|
1608 | int KdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
1609 | const VssRayContainer &rays)
|
---|
1610 | {
|
---|
1611 | // if view cells already constructed
|
---|
1612 | if (ViewCellsConstructed())
|
---|
1613 | return 0;
|
---|
1614 |
|
---|
1615 | mKdTree->Construct();
|
---|
1616 |
|
---|
1617 | mTotalAreaValid = false;
|
---|
1618 | // create the view cells
|
---|
1619 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
1620 |
|
---|
1621 | // cast rays
|
---|
1622 | ComputeSampleContributions(rays, true, false);
|
---|
1623 |
|
---|
1624 | EvaluateViewCellsStats();
|
---|
1625 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
1626 |
|
---|
1627 | return 0;
|
---|
1628 | }
|
---|
1629 |
|
---|
1630 |
|
---|
1631 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
1632 | {
|
---|
1633 | return mKdTree->GetRoot() != NULL;
|
---|
1634 | }
|
---|
1635 |
|
---|
1636 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
1637 | const VssRayContainer &rays)
|
---|
1638 | {
|
---|
1639 | return 0;
|
---|
1640 | }
|
---|
1641 |
|
---|
1642 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
1643 | const VssRayContainer &sampleRays)
|
---|
1644 | {
|
---|
1645 | if (!ViewCellsConstructed())
|
---|
1646 | return;
|
---|
1647 |
|
---|
1648 | // using view cells instead of the kd PVS of objects
|
---|
1649 | const bool useViewCells = true;
|
---|
1650 | bool exportRays = false;
|
---|
1651 |
|
---|
1652 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
1653 | const int pvsOut = min((int)objects.size(), 10);
|
---|
1654 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
1655 |
|
---|
1656 | if (useViewCells)
|
---|
1657 | {
|
---|
1658 | const int leafOut = 10;
|
---|
1659 |
|
---|
1660 | ViewCell::NewMail();
|
---|
1661 |
|
---|
1662 | //-- some rays for output
|
---|
1663 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
1664 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
1665 |
|
---|
1666 | //-- some random view cells and rays for output
|
---|
1667 | vector<KdLeaf *> kdLeaves;
|
---|
1668 |
|
---|
1669 | for (int i = 0; i < leafOut; ++ i)
|
---|
1670 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
1671 |
|
---|
1672 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
1673 | {
|
---|
1674 | KdLeaf *leaf = kdLeaves[i];
|
---|
1675 | RayContainer vcRays;
|
---|
1676 |
|
---|
1677 | cout << "creating output for view cell " << i << " ... ";
|
---|
1678 | #if 0
|
---|
1679 | // check whether we can add the current ray to the output rays
|
---|
1680 | for (int k = 0; k < raysOut; ++ k)
|
---|
1681 | {
|
---|
1682 | Ray *ray = sampleRays[k];
|
---|
1683 |
|
---|
1684 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
1685 | {
|
---|
1686 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
1687 |
|
---|
1688 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
1689 | {
|
---|
1690 | vcRays.push_back(ray);
|
---|
1691 | }
|
---|
1692 | }
|
---|
1693 | }
|
---|
1694 | #endif
|
---|
1695 | Intersectable::NewMail();
|
---|
1696 |
|
---|
1697 | ViewCell *vc = leaf->mViewCell;
|
---|
1698 |
|
---|
1699 | //bspLeaves[j]->Mail();
|
---|
1700 | char s[64]; sprintf(s, "kd-pvs%04d.x3d", i);
|
---|
1701 |
|
---|
1702 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1703 | exporter->SetFilled();
|
---|
1704 |
|
---|
1705 | exporter->SetWireframe();
|
---|
1706 | //exporter->SetFilled();
|
---|
1707 |
|
---|
1708 | Material m;//= RandomMaterial();
|
---|
1709 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
1710 | exporter->SetForcedMaterial(m);
|
---|
1711 |
|
---|
1712 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
1713 | exporter->ExportBox(box);
|
---|
1714 |
|
---|
1715 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
1716 | << ", piercing rays=" << (int)vcRays.size() << endl;
|
---|
1717 |
|
---|
1718 | // export rays piercing this view cell
|
---|
1719 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
1720 |
|
---|
1721 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1722 | exporter->SetForcedMaterial(m);
|
---|
1723 |
|
---|
1724 | // exporter->SetWireframe();
|
---|
1725 | exporter->SetFilled();
|
---|
1726 |
|
---|
1727 | ObjectPvsMap::iterator it, it_end = vc->GetPvs().mEntries.end();
|
---|
1728 | // output PVS of view cell
|
---|
1729 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
1730 | {
|
---|
1731 | Intersectable *intersect = (*it).first;
|
---|
1732 | if (!intersect->Mailed())
|
---|
1733 | {
|
---|
1734 | exporter->ExportIntersectable(intersect);
|
---|
1735 | intersect->Mail();
|
---|
1736 | }
|
---|
1737 | }
|
---|
1738 |
|
---|
1739 | DEL_PTR(exporter);
|
---|
1740 | cout << "finished" << endl;
|
---|
1741 | }
|
---|
1742 |
|
---|
1743 | DEL_PTR(rays);
|
---|
1744 | }
|
---|
1745 | else // using kd PVS of objects
|
---|
1746 | {
|
---|
1747 | for (int i = 0; i < limit; ++ i)
|
---|
1748 | {
|
---|
1749 | VssRay *ray = sampleRays[i];
|
---|
1750 |
|
---|
1751 | // check whether we can add this to the rays
|
---|
1752 | for (int j = 0; j < pvsOut; j++)
|
---|
1753 | {
|
---|
1754 | if (objects[j] == ray->mTerminationObject)
|
---|
1755 | {
|
---|
1756 | rays[j].push_back(ray);
|
---|
1757 | }
|
---|
1758 | }
|
---|
1759 | }
|
---|
1760 |
|
---|
1761 | if (exportRays)
|
---|
1762 | {
|
---|
1763 | Exporter *exporter = NULL;
|
---|
1764 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
1765 | exporter->SetWireframe();
|
---|
1766 | exporter->ExportKdTree(*mKdTree);
|
---|
1767 |
|
---|
1768 | for (i=0; i < pvsOut; i++)
|
---|
1769 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
1770 |
|
---|
1771 | exporter->SetFilled();
|
---|
1772 |
|
---|
1773 | delete exporter;
|
---|
1774 | }
|
---|
1775 |
|
---|
1776 | for (int k=0; k < pvsOut; k++)
|
---|
1777 | {
|
---|
1778 | Intersectable *object = objects[k];
|
---|
1779 | char s[64];
|
---|
1780 | sprintf(s, "sample-pvs%04d.x3d", k);
|
---|
1781 |
|
---|
1782 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1783 | exporter->SetWireframe();
|
---|
1784 |
|
---|
1785 | KdPvsMap::iterator i = object->mKdPvs.mEntries.begin();
|
---|
1786 | Intersectable::NewMail();
|
---|
1787 |
|
---|
1788 | // avoid adding the object to the list
|
---|
1789 | object->Mail();
|
---|
1790 | ObjectContainer visibleObjects;
|
---|
1791 |
|
---|
1792 | for (; i != object->mKdPvs.mEntries.end(); i++)
|
---|
1793 | {
|
---|
1794 | KdNode *node = (*i).first;
|
---|
1795 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
1796 |
|
---|
1797 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
1798 | }
|
---|
1799 |
|
---|
1800 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
1801 | exporter->SetFilled();
|
---|
1802 |
|
---|
1803 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
1804 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
1805 |
|
---|
1806 | Material m;
|
---|
1807 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1808 | exporter->SetForcedMaterial(m);
|
---|
1809 | exporter->ExportIntersectable(object);
|
---|
1810 |
|
---|
1811 | delete exporter;
|
---|
1812 | }
|
---|
1813 | }
|
---|
1814 | }
|
---|
1815 |
|
---|
1816 |
|
---|
1817 | void KdViewCellsManager::ExportColor(Exporter *exporter,
|
---|
1818 | ViewCell *vc) const
|
---|
1819 | {
|
---|
1820 | // TODO
|
---|
1821 | }
|
---|
1822 |
|
---|
1823 | ViewCell *KdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
1824 | {
|
---|
1825 | return new KdViewCell(mesh);
|
---|
1826 | }
|
---|
1827 |
|
---|
1828 |
|
---|
1829 | void KdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
1830 | ViewCell *vc) const
|
---|
1831 | {
|
---|
1832 | ViewCellContainer leaves;
|
---|
1833 |
|
---|
1834 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
1835 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
1836 |
|
---|
1837 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
1838 | {
|
---|
1839 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(*it);
|
---|
1840 |
|
---|
1841 | exporter->ExportBox(mKdTree->GetBox(kdVc->mLeaf));
|
---|
1842 | }
|
---|
1843 | }
|
---|
1844 |
|
---|
1845 |
|
---|
1846 | int KdViewCellsManager::GetType() const
|
---|
1847 | {
|
---|
1848 | return ViewCellsManager::KD;
|
---|
1849 | }
|
---|
1850 |
|
---|
1851 |
|
---|
1852 |
|
---|
1853 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
1854 | {
|
---|
1855 | KdNode *node = leaf;
|
---|
1856 |
|
---|
1857 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
1858 | node = node->mParent;
|
---|
1859 | return node;
|
---|
1860 | }
|
---|
1861 |
|
---|
1862 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
1863 | const Vector3 &termination,
|
---|
1864 | ViewCellContainer &viewcells)
|
---|
1865 | {
|
---|
1866 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
1867 | }
|
---|
1868 |
|
---|
1869 |
|
---|
1870 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
1871 | {
|
---|
1872 | // TODO
|
---|
1873 | }
|
---|
1874 |
|
---|
1875 |
|
---|
1876 |
|
---|
1877 | void KdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
1878 | vector<MergeCandidate> &candidates)
|
---|
1879 | {
|
---|
1880 | // TODO
|
---|
1881 | }
|
---|
1882 |
|
---|
1883 |
|
---|
1884 | /**********************************************************************/
|
---|
1885 | /* VspKdViewCellsManager implementation */
|
---|
1886 | /**********************************************************************/
|
---|
1887 |
|
---|
1888 |
|
---|
1889 | VspKdViewCellsManager::VspKdViewCellsManager(VspKdTree *vspKdTree):
|
---|
1890 | ViewCellsManager(), mVspKdTree(vspKdTree)
|
---|
1891 | {
|
---|
1892 | environment->GetIntValue("VspKdTree.Construction.samples", mInitialSamples);
|
---|
1893 | mVspKdTree->SetViewCellsManager(this);
|
---|
1894 | }
|
---|
1895 |
|
---|
1896 | float VspKdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
1897 | {
|
---|
1898 | // volume or area substitutes for view point probability
|
---|
1899 | #if 0
|
---|
1900 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
1901 | #else
|
---|
1902 | return GetArea(viewCell) / GetAccVcArea();
|
---|
1903 | #endif
|
---|
1904 | }
|
---|
1905 |
|
---|
1906 |
|
---|
1907 | float VspKdViewCellsManager::GetRendercost(ViewCell *viewCell, float objRendercost) const
|
---|
1908 | {
|
---|
1909 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
1910 | }
|
---|
1911 |
|
---|
1912 |
|
---|
1913 | void VspKdViewCellsManager::CollectViewCells()
|
---|
1914 | {
|
---|
1915 | mVspKdTree->CollectViewCells(mViewCells);
|
---|
1916 | }
|
---|
1917 |
|
---|
1918 |
|
---|
1919 | int VspKdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
1920 | const VssRayContainer &rays)
|
---|
1921 | {
|
---|
1922 | // if view cells already constructed
|
---|
1923 | if (ViewCellsConstructed())
|
---|
1924 | return 0;
|
---|
1925 |
|
---|
1926 | VssRayContainer constructionRays;
|
---|
1927 | VssRayContainer savedRays;
|
---|
1928 |
|
---|
1929 | GetRaySets(rays,
|
---|
1930 | mInitialSamples,
|
---|
1931 | constructionRays,
|
---|
1932 | &savedRays);
|
---|
1933 |
|
---|
1934 | Debug << "constructing vsp kd tree using "
|
---|
1935 | << (int)constructionRays.size() << " samples" << endl;
|
---|
1936 |
|
---|
1937 | mVspKdTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
1938 | Debug << mVspKdTree->GetStatistics() << endl;
|
---|
1939 |
|
---|
1940 | // export leaf building blocks
|
---|
1941 | ExportLeaves(objects, rays);
|
---|
1942 |
|
---|
1943 | // finally merge kd leaf building blocks to view cells
|
---|
1944 | const int merged = mVspKdTree->MergeViewCells(rays);
|
---|
1945 |
|
---|
1946 | // collapse siblings belonging to the same view cell
|
---|
1947 | mVspKdTree->RefineViewCells(rays);
|
---|
1948 |
|
---|
1949 | // collapse siblings belonging to the same view cell
|
---|
1950 | mVspKdTree->CollapseTree();
|
---|
1951 |
|
---|
1952 | // evaluale view cell stats
|
---|
1953 | ResetViewCells();
|
---|
1954 |
|
---|
1955 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
1956 |
|
---|
1957 | long startTime = GetTime();
|
---|
1958 | // recast rest of rays
|
---|
1959 | ComputeSampleContributions(savedRays, true, false);
|
---|
1960 |
|
---|
1961 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
1962 | << " secs" << endl;
|
---|
1963 |
|
---|
1964 | return merged;
|
---|
1965 | }
|
---|
1966 |
|
---|
1967 | bool VspKdViewCellsManager::ViewCellsConstructed() const
|
---|
1968 | {
|
---|
1969 | return mVspKdTree->GetRoot() != NULL;
|
---|
1970 | }
|
---|
1971 |
|
---|
1972 |
|
---|
1973 | ViewCell *VspKdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
1974 | {
|
---|
1975 | return new VspKdViewCell(mesh);
|
---|
1976 | }
|
---|
1977 |
|
---|
1978 | int VspKdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
1979 | const VssRayContainer &rays)
|
---|
1980 | {
|
---|
1981 | if (!ViewCellsConstructed())
|
---|
1982 | return 0;
|
---|
1983 |
|
---|
1984 | // recalculate stats
|
---|
1985 | EvaluateViewCellsStats();
|
---|
1986 |
|
---|
1987 | return 0;
|
---|
1988 | }
|
---|
1989 |
|
---|
1990 |
|
---|
1991 | void VspKdViewCellsManager::ExportLeaves(const ObjectContainer &objects,
|
---|
1992 | const VssRayContainer &sampleRays)
|
---|
1993 | {
|
---|
1994 | if (!ViewCellsConstructed())
|
---|
1995 | return;
|
---|
1996 |
|
---|
1997 | //-- export leaf building blocks
|
---|
1998 | Exporter *exporter = Exporter::GetExporter("vspkdtree.x3d");
|
---|
1999 | if (!exporter)
|
---|
2000 | return;
|
---|
2001 |
|
---|
2002 | //exporter->SetWireframe();
|
---|
2003 | //exporter->ExportVspKdTree(*mVspKdTree, mVspKdTree->GetStatistics().maxPvsSize);
|
---|
2004 | exporter->ExportVspKdTree(*mVspKdTree);
|
---|
2005 |
|
---|
2006 | if (mExportGeometry)
|
---|
2007 | exporter->ExportGeometry(objects);
|
---|
2008 |
|
---|
2009 | if (mExportRays)
|
---|
2010 | {
|
---|
2011 | const float prob = (float)mVisualizationSamples
|
---|
2012 | / ((float)sampleRays.size() + Limits::Small);
|
---|
2013 |
|
---|
2014 | exporter->SetWireframe();
|
---|
2015 |
|
---|
2016 | //-- collect uniformly distributed rays
|
---|
2017 | VssRayContainer rays;
|
---|
2018 |
|
---|
2019 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
2020 | {
|
---|
2021 | if (RandomValue(0,1) < prob)
|
---|
2022 | rays.push_back(sampleRays[i]);
|
---|
2023 | }
|
---|
2024 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
2025 | }
|
---|
2026 |
|
---|
2027 | delete exporter;
|
---|
2028 | }
|
---|
2029 |
|
---|
2030 | void VspKdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
2031 | const VssRayContainer &sampleRays)
|
---|
2032 | {
|
---|
2033 | if (!ViewCellsConstructed())
|
---|
2034 | return;
|
---|
2035 |
|
---|
2036 | //-- export single view cells
|
---|
2037 | for (int i = 0; i < 10; ++ i)
|
---|
2038 | {
|
---|
2039 | char s[64];
|
---|
2040 | sprintf(s, "vsp_viewcell%04d.x3d", i);
|
---|
2041 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
2042 | const int idx =
|
---|
2043 | (int)RandomValue(0.0, (Real)((int)mViewCells.size() - 1));
|
---|
2044 |
|
---|
2045 | VspKdViewCell *vc = dynamic_cast<VspKdViewCell *>(mViewCells[idx]);
|
---|
2046 |
|
---|
2047 | cout << "Output view cell " << i << " with pvs size " << vc->GetPvs().GetSize() << endl;
|
---|
2048 | Debug << "Output view cell " << i << " with pvs size " << vc->GetPvs().GetSize() << endl;
|
---|
2049 | //-- export geometry
|
---|
2050 | Material m;
|
---|
2051 | m.mDiffuseColor = RgbColor(0, 1, 1);
|
---|
2052 |
|
---|
2053 | exporter->SetForcedMaterial(m);
|
---|
2054 | exporter->SetWireframe();
|
---|
2055 |
|
---|
2056 | ExportViewCellGeometry(exporter, vc);
|
---|
2057 |
|
---|
2058 | //-- export stored rays
|
---|
2059 |
|
---|
2060 | if (mExportRays)
|
---|
2061 | {
|
---|
2062 | ViewCellContainer leaves;
|
---|
2063 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
2064 |
|
---|
2065 | ViewCellContainer::const_iterator it,
|
---|
2066 | it_end = leaves.end();
|
---|
2067 |
|
---|
2068 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
2069 | {
|
---|
2070 | VspKdViewCell *vspKdVc = dynamic_cast<VspKdViewCell *>(*it);
|
---|
2071 | VspKdLeaf *leaf = vspKdVc->mLeaf;
|
---|
2072 | AxisAlignedBox3 box = mVspKdTree->GetBBox(leaf);
|
---|
2073 |
|
---|
2074 | VssRayContainer vssRays;
|
---|
2075 |
|
---|
2076 | VssRayContainer castRays;
|
---|
2077 | VssRayContainer initRays;
|
---|
2078 |
|
---|
2079 | leaf->GetRays(vssRays);
|
---|
2080 |
|
---|
2081 | VssRayContainer::const_iterator it, it_end = vssRays.end();
|
---|
2082 | const float prop = 200.0f / (float)vssRays.size();
|
---|
2083 |
|
---|
2084 | for (it = vssRays.begin(); it != it_end; ++ it)
|
---|
2085 | {
|
---|
2086 | if (Random(1) < prop)
|
---|
2087 | if ((*it)->mTerminationObject == NULL)
|
---|
2088 | castRays.push_back(*it);
|
---|
2089 | else
|
---|
2090 | initRays.push_back(*it);
|
---|
2091 | }
|
---|
2092 |
|
---|
2093 | exporter->ExportRays(castRays, RgbColor(1, 0, 0));
|
---|
2094 | exporter->ExportRays(initRays, RgbColor(0, 1, 0));
|
---|
2095 | }
|
---|
2096 | }
|
---|
2097 |
|
---|
2098 | //-- output PVS of view cell
|
---|
2099 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
2100 | exporter->SetForcedMaterial(m);
|
---|
2101 |
|
---|
2102 | Intersectable::NewMail();
|
---|
2103 |
|
---|
2104 | ObjectPvsMap::const_iterator it,
|
---|
2105 | it_end = vc->GetPvs().mEntries.end();
|
---|
2106 |
|
---|
2107 | exporter->SetFilled();
|
---|
2108 |
|
---|
2109 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
2110 | {
|
---|
2111 | Intersectable *intersect = (*it).first;
|
---|
2112 |
|
---|
2113 | if (!intersect->Mailed())
|
---|
2114 | {
|
---|
2115 | Material m = RandomMaterial();
|
---|
2116 | exporter->SetForcedMaterial(m);
|
---|
2117 |
|
---|
2118 | exporter->ExportIntersectable(intersect);
|
---|
2119 | intersect->Mail();
|
---|
2120 | }
|
---|
2121 | }
|
---|
2122 |
|
---|
2123 | delete exporter;
|
---|
2124 | }
|
---|
2125 |
|
---|
2126 | //-- export final view cells
|
---|
2127 | Exporter *exporter = Exporter::GetExporter("vspkdtree_merged.x3d");
|
---|
2128 |
|
---|
2129 | //if (exportGeometry) exporter->SetWireframe();
|
---|
2130 | //else exporter->SetFilled();
|
---|
2131 |
|
---|
2132 | ExportViewCellsForViz(exporter);
|
---|
2133 |
|
---|
2134 | if (mExportGeometry)
|
---|
2135 | {
|
---|
2136 | exporter->SetFilled();
|
---|
2137 | exporter->ExportGeometry(objects);
|
---|
2138 | }
|
---|
2139 |
|
---|
2140 | if (mExportRays)
|
---|
2141 | {
|
---|
2142 | const float prob = (float)mVisualizationSamples
|
---|
2143 | / ((float)sampleRays.size() + Limits::Small);
|
---|
2144 |
|
---|
2145 | exporter->SetWireframe();
|
---|
2146 |
|
---|
2147 | VssRayContainer rays;
|
---|
2148 |
|
---|
2149 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
2150 | {
|
---|
2151 | if (RandomValue(0,1) < prob)
|
---|
2152 | rays.push_back(sampleRays[i]);
|
---|
2153 | }
|
---|
2154 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
2155 | }
|
---|
2156 |
|
---|
2157 | delete exporter;
|
---|
2158 | }
|
---|
2159 |
|
---|
2160 | int VspKdViewCellsManager::GetType() const
|
---|
2161 | {
|
---|
2162 | return VSP_KD;
|
---|
2163 | }
|
---|
2164 |
|
---|
2165 |
|
---|
2166 | int VspKdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
2167 | const Vector3 &termination,
|
---|
2168 | ViewCellContainer &viewcells)
|
---|
2169 | {
|
---|
2170 | return mVspKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
2171 | }
|
---|
2172 |
|
---|
2173 |
|
---|
2174 | void VspKdViewCellsManager::ExportColor(Exporter *exporter,
|
---|
2175 | ViewCell *vc) const
|
---|
2176 | {
|
---|
2177 | if (mColorCode == 0) // Random color
|
---|
2178 | return;
|
---|
2179 |
|
---|
2180 | float importance = 0;
|
---|
2181 |
|
---|
2182 | switch (mColorCode)
|
---|
2183 | {
|
---|
2184 | case 1: // pvs
|
---|
2185 | {
|
---|
2186 | importance = (float)vc->GetPvs().GetSize() /
|
---|
2187 | (float)mViewCellsStats.maxPvs;
|
---|
2188 | }
|
---|
2189 | break;
|
---|
2190 | case 2: // merged leaves
|
---|
2191 | {
|
---|
2192 | int lSize = mViewCellsTree->GetSize(vc);
|
---|
2193 | importance = (float)lSize /
|
---|
2194 | (float)mViewCellsStats.maxLeaves;
|
---|
2195 | }
|
---|
2196 | break;
|
---|
2197 | case 3: // merged tree depth difference
|
---|
2198 | {
|
---|
2199 | //importance = (float)GetMaxTreeDiff(vc) /
|
---|
2200 | // (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
2201 | }
|
---|
2202 | break;
|
---|
2203 | default:
|
---|
2204 | break;
|
---|
2205 | }
|
---|
2206 |
|
---|
2207 | Material m;
|
---|
2208 | m.mDiffuseColor.b = 1.0f;
|
---|
2209 | m.mDiffuseColor.r = importance;
|
---|
2210 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
2211 | //Debug << "importance: " << importance << endl;
|
---|
2212 | exporter->SetForcedMaterial(m);
|
---|
2213 | }
|
---|
2214 |
|
---|
2215 |
|
---|
2216 | void VspKdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
2217 | ViewCell *vc) const
|
---|
2218 | {
|
---|
2219 | VspKdViewCell *kdVc = dynamic_cast<VspKdViewCell *>(vc);
|
---|
2220 |
|
---|
2221 | Mesh m;
|
---|
2222 |
|
---|
2223 | ViewCellContainer leaves;
|
---|
2224 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
2225 |
|
---|
2226 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
2227 |
|
---|
2228 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
2229 | {
|
---|
2230 | VspKdLeaf *l = dynamic_cast<VspKdViewCell *>(*it)->mLeaf;
|
---|
2231 | mVspKdTree->GetBBox(l).AddBoxToMesh(&m);
|
---|
2232 | }
|
---|
2233 |
|
---|
2234 | exporter->ExportMesh(&m);
|
---|
2235 | }
|
---|
2236 |
|
---|
2237 |
|
---|
2238 | void VspKdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
2239 | {
|
---|
2240 | //TODO
|
---|
2241 | }
|
---|
2242 |
|
---|
2243 |
|
---|
2244 | void VspKdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
2245 | vector<MergeCandidate> &candidates)
|
---|
2246 | {
|
---|
2247 | // TODO
|
---|
2248 | }
|
---|
2249 |
|
---|
2250 |
|
---|
2251 | /**************************************************************************/
|
---|
2252 | /* VspBspViewCellsManager implementation */
|
---|
2253 | /**************************************************************************/
|
---|
2254 |
|
---|
2255 |
|
---|
2256 | VspBspViewCellsManager::VspBspViewCellsManager(VspBspTree *vspBspTree):
|
---|
2257 | ViewCellsManager(), mVspBspTree(vspBspTree)
|
---|
2258 | {
|
---|
2259 | environment->GetIntValue("VspBspTree.Construction.samples", mInitialSamples);
|
---|
2260 | mVspBspTree->SetViewCellsManager(this);
|
---|
2261 | mVspBspTree->mViewCellsTree = mViewCellsTree;
|
---|
2262 | }
|
---|
2263 |
|
---|
2264 |
|
---|
2265 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
2266 | {
|
---|
2267 | }
|
---|
2268 |
|
---|
2269 |
|
---|
2270 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
2271 | {
|
---|
2272 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
2273 | return GetArea(viewCell) / GetAccVcArea();
|
---|
2274 | else
|
---|
2275 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
2276 | }
|
---|
2277 |
|
---|
2278 |
|
---|
2279 | void VspBspViewCellsManager::CollectViewCells()
|
---|
2280 | {
|
---|
2281 | // view cells tree constructed
|
---|
2282 | if (!ViewCellsTreeConstructed())
|
---|
2283 | {
|
---|
2284 | mVspBspTree->CollectViewCells(mViewCells, false);
|
---|
2285 | }
|
---|
2286 | else
|
---|
2287 | {
|
---|
2288 | // we can use the view cells tree hierarchy to get the right set
|
---|
2289 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumMergedViewCells);
|
---|
2290 | }
|
---|
2291 |
|
---|
2292 | }
|
---|
2293 |
|
---|
2294 |
|
---|
2295 | float VspBspViewCellsManager::GetRendercost(ViewCell *viewCell,
|
---|
2296 | float objRendercost) const
|
---|
2297 | {
|
---|
2298 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
2299 | }
|
---|
2300 |
|
---|
2301 |
|
---|
2302 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
2303 | {
|
---|
2304 | return mVspBspTree->GetRoot() != NULL;
|
---|
2305 | }
|
---|
2306 |
|
---|
2307 |
|
---|
2308 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
2309 | {
|
---|
2310 | return new BspViewCell(mesh);
|
---|
2311 | }
|
---|
2312 |
|
---|
2313 |
|
---|
2314 | int VspBspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
2315 | const VssRayContainer &rays)
|
---|
2316 | {
|
---|
2317 | // if view cells were already constructed
|
---|
2318 | if (ViewCellsConstructed())
|
---|
2319 | return 0;
|
---|
2320 |
|
---|
2321 | Debug << "Constructing bsp view cells" << endl;
|
---|
2322 |
|
---|
2323 | int sampleContributions = 0;
|
---|
2324 |
|
---|
2325 | VssRayContainer sampleRays;
|
---|
2326 |
|
---|
2327 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
2328 |
|
---|
2329 | VssRayContainer constructionRays;
|
---|
2330 | VssRayContainer savedRays;
|
---|
2331 |
|
---|
2332 | Debug << "samples used for subdivision: " << mInitialSamples
|
---|
2333 | << " rays: " << (int)rays.size() << endl;
|
---|
2334 |
|
---|
2335 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
2336 |
|
---|
2337 | Debug << "initial rays: " << (int)constructionRays.size() << endl;
|
---|
2338 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
2339 |
|
---|
2340 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
2341 |
|
---|
2342 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
2343 |
|
---|
2344 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
2345 |
|
---|
2346 | // collapse invalid regions
|
---|
2347 | cout << "collapsing invalid tree regions ... ";
|
---|
2348 | long startTime = GetTime();
|
---|
2349 | int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
2350 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
2351 | << " seconds" << endl;
|
---|
2352 |
|
---|
2353 | cout << "finished" << endl;
|
---|
2354 |
|
---|
2355 | cout << "reseting view cell stats ... ";
|
---|
2356 | ResetViewCells();
|
---|
2357 | cout << "finished" << endl;
|
---|
2358 |
|
---|
2359 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
2360 |
|
---|
2361 | if (1) // export initial view cells
|
---|
2362 | {
|
---|
2363 | cout << "exporting initial view cells (=leaves) ... ";
|
---|
2364 | Exporter *exporter = Exporter::GetExporter("view_cells.x3d");
|
---|
2365 |
|
---|
2366 | if (exporter)
|
---|
2367 | {
|
---|
2368 | //exporter->SetWireframe();
|
---|
2369 | exporter->SetFilled();
|
---|
2370 | ExportViewCellsForViz(exporter);
|
---|
2371 |
|
---|
2372 | if (0 && mExportRays)
|
---|
2373 | exporter->ExportRays(rays, RgbColor(1, 1, 1));
|
---|
2374 |
|
---|
2375 | if (mExportGeometry)
|
---|
2376 | exporter->ExportGeometry(objects);
|
---|
2377 |
|
---|
2378 | delete exporter;
|
---|
2379 | }
|
---|
2380 | cout << "finished" << endl;
|
---|
2381 | }
|
---|
2382 |
|
---|
2383 | startTime = GetTime();
|
---|
2384 |
|
---|
2385 | // reset view cells and stats
|
---|
2386 | ResetViewCells();
|
---|
2387 |
|
---|
2388 | cout << "Computing remaining ray contributions ... ";
|
---|
2389 | // recast rest of rays
|
---|
2390 | ComputeSampleContributions(savedRays, true, false);
|
---|
2391 | cout << "finished" << endl;
|
---|
2392 |
|
---|
2393 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
2394 | << " secs" << endl;
|
---|
2395 |
|
---|
2396 | cout << "construction finished" << endl;
|
---|
2397 |
|
---|
2398 | return sampleContributions;
|
---|
2399 | }
|
---|
2400 |
|
---|
2401 |
|
---|
2402 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
2403 | const ObjectContainer &objects)
|
---|
2404 | {
|
---|
2405 | //-- post processing of bsp view cells
|
---|
2406 | int vcSize = 0;
|
---|
2407 | int pvsSize = 0;
|
---|
2408 |
|
---|
2409 | mRenderer->RenderScene();
|
---|
2410 | SimulationStatistics ss;
|
---|
2411 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
2412 | Debug << ss << endl;
|
---|
2413 |
|
---|
2414 | //-- merge or subdivide view cells
|
---|
2415 | int merged = 0;
|
---|
2416 |
|
---|
2417 | cout << "starting merge using " << mPostProcessSamples << " samples ... " << endl;
|
---|
2418 | long startTime = GetTime();
|
---|
2419 |
|
---|
2420 |
|
---|
2421 | // TODO: should be done BEFORE the ray casting
|
---|
2422 | merged = mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
2423 |
|
---|
2424 | //-- stats and visualizations
|
---|
2425 | cout << "finished merging" << endl;
|
---|
2426 | cout << "merged " << merged << " view cells in "
|
---|
2427 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
2428 |
|
---|
2429 | Debug << "Postprocessing: Merged " << merged << " view cells in "
|
---|
2430 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
2431 |
|
---|
2432 |
|
---|
2433 | //BspLeaf::NewMail();
|
---|
2434 | if (1) // export merged view cells
|
---|
2435 | {
|
---|
2436 |
|
---|
2437 | cout << "reseting view cells ... ";
|
---|
2438 | ResetViewCells();
|
---|
2439 |
|
---|
2440 | cout << "finished" << endl;
|
---|
2441 |
|
---|
2442 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.x3d");
|
---|
2443 | Debug << "\nView cells after merge:\n" << mViewCellsStats << endl;
|
---|
2444 |
|
---|
2445 | cout << "exporting view cells after merge ... ";
|
---|
2446 |
|
---|
2447 | if (exporter)
|
---|
2448 | {
|
---|
2449 | if (0)
|
---|
2450 | exporter->SetWireframe();
|
---|
2451 | else
|
---|
2452 | exporter->SetFilled();
|
---|
2453 | ExportViewCellsForViz(exporter);
|
---|
2454 |
|
---|
2455 | if (mExportGeometry)
|
---|
2456 | {
|
---|
2457 | Material m;
|
---|
2458 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
2459 | exporter->SetForcedMaterial(m);
|
---|
2460 | exporter->SetFilled();
|
---|
2461 |
|
---|
2462 | exporter->ExportGeometry(objects);
|
---|
2463 | }
|
---|
2464 |
|
---|
2465 | delete exporter;
|
---|
2466 | }
|
---|
2467 | cout << "finished" << endl;
|
---|
2468 | }
|
---|
2469 | }
|
---|
2470 |
|
---|
2471 |
|
---|
2472 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays,
|
---|
2473 | const ObjectContainer &objects)
|
---|
2474 | {
|
---|
2475 | Debug << "render time before refine:" << endl;
|
---|
2476 | mRenderer->RenderScene();
|
---|
2477 | SimulationStatistics ss;
|
---|
2478 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
2479 | Debug << ss << endl;
|
---|
2480 |
|
---|
2481 | cout << "Refining the merged view cells ... ";
|
---|
2482 | long startTime = GetTime();
|
---|
2483 |
|
---|
2484 | // refining the merged view cells
|
---|
2485 | const int refined = mViewCellsTree->RefineViewCells(rays, objects);
|
---|
2486 |
|
---|
2487 | //-- stats and visualizations
|
---|
2488 | cout << "finished" << endl;
|
---|
2489 | cout << "refined " << refined << " view cells in "
|
---|
2490 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
2491 |
|
---|
2492 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
2493 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
2494 | }
|
---|
2495 |
|
---|
2496 |
|
---|
2497 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
2498 | const VssRayContainer &rays)
|
---|
2499 | {
|
---|
2500 | if (!ViewCellsConstructed())
|
---|
2501 | {
|
---|
2502 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
2503 | return 0;
|
---|
2504 | }
|
---|
2505 |
|
---|
2506 |
|
---|
2507 | // view cells already finished before post processing step (i.e. because they were loaded)
|
---|
2508 | if (mViewCellsFinished)
|
---|
2509 | {
|
---|
2510 | FinalizeViewCells(true);
|
---|
2511 | EvaluateViewCellsStats();
|
---|
2512 |
|
---|
2513 | return 0;
|
---|
2514 | }
|
---|
2515 |
|
---|
2516 |
|
---|
2517 | // check if new view cells turned invalid
|
---|
2518 | SetValidity(mMinPvsSize, mMaxPvsSize);
|
---|
2519 | // update valid view space according to valid view cells
|
---|
2520 | mVspBspTree->ValidateTree();
|
---|
2521 |
|
---|
2522 | // recompute view cell statistics
|
---|
2523 | mViewCellsStats.Reset();
|
---|
2524 | EvaluateViewCellsStats();
|
---|
2525 |
|
---|
2526 | // has to be recomputed
|
---|
2527 | mTotalAreaValid = false;
|
---|
2528 |
|
---|
2529 |
|
---|
2530 | VssRayContainer postProcessRays;
|
---|
2531 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
2532 |
|
---|
2533 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
2534 |
|
---|
2535 | Debug << "\nview cell partition after sampling:\n" << mViewCellsStats << endl << endl;
|
---|
2536 |
|
---|
2537 | // should maybe be done here to allow merge working with area or volume
|
---|
2538 | // and to correct the rendering statistics
|
---|
2539 | if (0)
|
---|
2540 | {
|
---|
2541 | FinalizeViewCells(false);
|
---|
2542 | }
|
---|
2543 |
|
---|
2544 | //-- merge the individual view cells
|
---|
2545 | MergeViewCells(postProcessRays, objects);
|
---|
2546 |
|
---|
2547 | //-- refines the merged view cells
|
---|
2548 | if (0)
|
---|
2549 | RefineViewCells(postProcessRays, objects);
|
---|
2550 |
|
---|
2551 | if (mCompressViewCells)
|
---|
2552 | {
|
---|
2553 | int pvsEntries = mViewCellsTree->GetNumPvsEntries(mViewCellsTree->GetRoot());
|
---|
2554 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
2555 |
|
---|
2556 | mViewCellsTree->CompressViewCellsPvs();
|
---|
2557 |
|
---|
2558 | pvsEntries = mViewCellsTree->GetNumPvsEntries(mViewCellsTree->GetRoot());
|
---|
2559 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
2560 | }
|
---|
2561 |
|
---|
2562 | if (1)
|
---|
2563 | {
|
---|
2564 | float totalCost, erc, var, dev, avg;
|
---|
2565 | int totalpvs;
|
---|
2566 |
|
---|
2567 | mViewCellsStats.Reset();
|
---|
2568 |
|
---|
2569 | EvaluateRenderStatistics(totalCost, erc, dev, var, totalpvs, avg);
|
---|
2570 |
|
---|
2571 | Debug << "statistics after merge "
|
---|
2572 | << " erc: " << erc
|
---|
2573 | << " dev: " << dev
|
---|
2574 | << " totalpvs: " << totalpvs
|
---|
2575 | << " avg: " << avg << endl;
|
---|
2576 | }
|
---|
2577 |
|
---|
2578 |
|
---|
2579 | //-- export shuffled view cells
|
---|
2580 | if (0)
|
---|
2581 | {
|
---|
2582 | cout << "exporting shuffled view cells ... ";
|
---|
2583 |
|
---|
2584 | Exporter *exporter = Exporter::GetExporter("shuffled_view_cells.x3d");
|
---|
2585 | if (exporter)
|
---|
2586 | {
|
---|
2587 | if (1)
|
---|
2588 | {
|
---|
2589 | exporter->SetWireframe();
|
---|
2590 | exporter->ExportBox(mViewSpaceBox);
|
---|
2591 | exporter->SetFilled();
|
---|
2592 | }
|
---|
2593 |
|
---|
2594 | if (mExportGeometry)
|
---|
2595 | {
|
---|
2596 | exporter->ExportGeometry(objects);
|
---|
2597 | }
|
---|
2598 |
|
---|
2599 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
2600 |
|
---|
2601 | Material vm, lm;
|
---|
2602 |
|
---|
2603 | for (vit = mViewCells.begin(); vit != mViewCells.end(); ++ vit)
|
---|
2604 | {
|
---|
2605 | ViewCell *vc = *vit;
|
---|
2606 |
|
---|
2607 | vm = RandomMaterial();
|
---|
2608 |
|
---|
2609 | lm = vm;
|
---|
2610 |
|
---|
2611 | vm.mDiffuseColor.r -= 0.45f;
|
---|
2612 | vm.mDiffuseColor.g -= 0.45f;
|
---|
2613 | vm.mDiffuseColor.b -= 0.45f;
|
---|
2614 |
|
---|
2615 |
|
---|
2616 | ViewCellContainer leaves;
|
---|
2617 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
2618 |
|
---|
2619 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
2620 |
|
---|
2621 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
2622 | {
|
---|
2623 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*lit)->mLeaf;
|
---|
2624 |
|
---|
2625 | if (leaf->Mailed())
|
---|
2626 | exporter->SetForcedMaterial(lm);
|
---|
2627 | else
|
---|
2628 | exporter->SetForcedMaterial(vm);
|
---|
2629 |
|
---|
2630 | BspNodeGeometry geom;
|
---|
2631 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
2632 | exporter->ExportPolygons(geom.mPolys);
|
---|
2633 | }
|
---|
2634 | }
|
---|
2635 |
|
---|
2636 | delete exporter;
|
---|
2637 | }
|
---|
2638 |
|
---|
2639 |
|
---|
2640 | cout << "finished" << endl;
|
---|
2641 | }
|
---|
2642 |
|
---|
2643 | // collapse sibling leaves that share the same view cell
|
---|
2644 | if (0)
|
---|
2645 | mVspBspTree->CollapseTree();
|
---|
2646 |
|
---|
2647 | // recompute view cell list and statistics
|
---|
2648 | ResetViewCells();
|
---|
2649 |
|
---|
2650 | // real meshes are only contructed only at this stage
|
---|
2651 | FinalizeViewCells(true);
|
---|
2652 |
|
---|
2653 | // HACK: removes view cells in bsp leaves with active ones
|
---|
2654 | if (0)
|
---|
2655 | AddCurrentViewCellsToHierarchy();
|
---|
2656 |
|
---|
2657 |
|
---|
2658 | // write view cells to disc
|
---|
2659 | if (mExportViewCells)
|
---|
2660 | {
|
---|
2661 | char buff[100];
|
---|
2662 | environment->GetStringValue("ViewCells.filename", buff);
|
---|
2663 | string vcFilename(buff);
|
---|
2664 |
|
---|
2665 | ExportViewCells(buff);
|
---|
2666 | }
|
---|
2667 |
|
---|
2668 | return 0;
|
---|
2669 | }
|
---|
2670 |
|
---|
2671 |
|
---|
2672 | int VspBspViewCellsManager::GetType() const
|
---|
2673 | {
|
---|
2674 | return VSP_BSP;
|
---|
2675 | }
|
---|
2676 |
|
---|
2677 |
|
---|
2678 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
2679 | {
|
---|
2680 | if (!ViewCellsConstructed())
|
---|
2681 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
2682 |
|
---|
2683 | // TODO: set reasonable limit
|
---|
2684 | const int limit = 20;
|
---|
2685 |
|
---|
2686 | for (int i = 0; i < limit; ++ i)
|
---|
2687 | {
|
---|
2688 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
2689 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
2690 | {
|
---|
2691 | return true;
|
---|
2692 | }
|
---|
2693 | }
|
---|
2694 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
2695 | return false;
|
---|
2696 | }
|
---|
2697 |
|
---|
2698 |
|
---|
2699 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
2700 | {
|
---|
2701 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
2702 | // validy update in preprocessor for all managers)
|
---|
2703 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
2704 |
|
---|
2705 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
2706 | // mVspBspTree->ViewPointValid(viewPoint);
|
---|
2707 | }
|
---|
2708 |
|
---|
2709 |
|
---|
2710 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
2711 | const VssRayContainer &sampleRays)
|
---|
2712 | {
|
---|
2713 | if (!ViewCellsConstructed())
|
---|
2714 | return;
|
---|
2715 |
|
---|
2716 | VssRayContainer visRays;
|
---|
2717 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
2718 |
|
---|
2719 | if (1) // export view cells
|
---|
2720 | {
|
---|
2721 | Exporter *exporter = Exporter::GetExporter("final_view_cells.x3d");
|
---|
2722 |
|
---|
2723 | if (exporter)
|
---|
2724 | {
|
---|
2725 | cout << "exporting view cells after post process ... ";
|
---|
2726 |
|
---|
2727 | if (1)
|
---|
2728 | {
|
---|
2729 | exporter->SetWireframe();
|
---|
2730 | exporter->ExportBox(mViewSpaceBox);
|
---|
2731 | exporter->SetFilled();
|
---|
2732 | }
|
---|
2733 |
|
---|
2734 | if (mExportGeometry)
|
---|
2735 | {
|
---|
2736 | exporter->ExportGeometry(objects);
|
---|
2737 | }
|
---|
2738 |
|
---|
2739 | // export rays
|
---|
2740 | if (mExportRays)
|
---|
2741 | {
|
---|
2742 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
2743 | }
|
---|
2744 |
|
---|
2745 | ExportViewCellsForViz(exporter);
|
---|
2746 | delete exporter;
|
---|
2747 | cout << "finished" << endl;
|
---|
2748 | }
|
---|
2749 | }
|
---|
2750 |
|
---|
2751 | if (1)
|
---|
2752 | {
|
---|
2753 | cout << "exporting depth map ... ";
|
---|
2754 |
|
---|
2755 | Exporter *exporter = Exporter::GetExporter("depth_map.x3d");
|
---|
2756 | if (exporter)
|
---|
2757 | {
|
---|
2758 | if (1)
|
---|
2759 | {
|
---|
2760 | exporter->SetWireframe();
|
---|
2761 | exporter->ExportBox(mViewSpaceBox);
|
---|
2762 | exporter->SetFilled();
|
---|
2763 | }
|
---|
2764 |
|
---|
2765 | if (mExportGeometry)
|
---|
2766 | {
|
---|
2767 | exporter->ExportGeometry(objects);
|
---|
2768 | }
|
---|
2769 |
|
---|
2770 | const int maxDepth = mVspBspTree->mBspStats.maxDepth;
|
---|
2771 |
|
---|
2772 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
2773 |
|
---|
2774 | for (vit = mViewCells.begin(); vit != mViewCells.end(); ++ vit)
|
---|
2775 | {
|
---|
2776 | ViewCell *vc = *vit;
|
---|
2777 |
|
---|
2778 | ViewCellContainer leaves;
|
---|
2779 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
2780 |
|
---|
2781 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
2782 |
|
---|
2783 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
2784 | {
|
---|
2785 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*lit)->mLeaf;
|
---|
2786 |
|
---|
2787 | Material m;
|
---|
2788 |
|
---|
2789 | float relDepth = (float)leaf->GetDepth() / (float)maxDepth;
|
---|
2790 | m.mDiffuseColor.r = relDepth;
|
---|
2791 | m.mDiffuseColor.g = 0.0f;
|
---|
2792 | m.mDiffuseColor.b = 1.0f - relDepth;
|
---|
2793 |
|
---|
2794 | exporter->SetForcedMaterial(m);
|
---|
2795 |
|
---|
2796 |
|
---|
2797 | BspNodeGeometry geom;
|
---|
2798 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
2799 | exporter->ExportPolygons(geom.mPolys);
|
---|
2800 | }
|
---|
2801 | }
|
---|
2802 |
|
---|
2803 | delete exporter;
|
---|
2804 | }
|
---|
2805 |
|
---|
2806 |
|
---|
2807 | cout << "finished" << endl;
|
---|
2808 | }
|
---|
2809 |
|
---|
2810 | //-- visualization of the BSP splits
|
---|
2811 | bool exportSplits = false;
|
---|
2812 | environment->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
2813 |
|
---|
2814 | if (exportSplits)
|
---|
2815 | {
|
---|
2816 | cout << "exporting splits ... ";
|
---|
2817 | ExportSplits(objects, visRays);
|
---|
2818 | cout << "finished" << endl;
|
---|
2819 | }
|
---|
2820 |
|
---|
2821 | //-- export single view cells
|
---|
2822 | ExportBspPvs(objects, visRays);
|
---|
2823 | }
|
---|
2824 |
|
---|
2825 |
|
---|
2826 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
2827 | const VssRayContainer &rays)
|
---|
2828 | {
|
---|
2829 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
2830 |
|
---|
2831 | if (exporter)
|
---|
2832 | {
|
---|
2833 | Material m;
|
---|
2834 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
2835 | exporter->SetForcedMaterial(m);
|
---|
2836 | exporter->SetWireframe();
|
---|
2837 |
|
---|
2838 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
2839 |
|
---|
2840 | // take forced material, else big scenes cannot be viewed
|
---|
2841 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
2842 | exporter->SetForcedMaterial(m);
|
---|
2843 | exporter->SetFilled();
|
---|
2844 |
|
---|
2845 | exporter->ResetForcedMaterial();
|
---|
2846 |
|
---|
2847 | // export rays
|
---|
2848 | if (mExportRays)
|
---|
2849 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
2850 |
|
---|
2851 | if (mExportGeometry)
|
---|
2852 | exporter->ExportGeometry(objects);
|
---|
2853 |
|
---|
2854 | delete exporter;
|
---|
2855 | }
|
---|
2856 | }
|
---|
2857 |
|
---|
2858 |
|
---|
2859 | void VspBspViewCellsManager::ExportBspPvs(const ObjectContainer &objects,
|
---|
2860 | const VssRayContainer &rays)
|
---|
2861 | {
|
---|
2862 | const int leafOut = 10;
|
---|
2863 |
|
---|
2864 | ViewCell::NewMail();
|
---|
2865 |
|
---|
2866 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
2867 | Debug << "\nOutput view cells: " << endl;
|
---|
2868 |
|
---|
2869 | // sort view cells to visualize the largest view cells
|
---|
2870 | if (0)
|
---|
2871 | stable_sort(mViewCells.begin(), mViewCells.end(), vc_gt);
|
---|
2872 |
|
---|
2873 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
2874 |
|
---|
2875 | int raysOut;
|
---|
2876 |
|
---|
2877 | //-- some rays for output
|
---|
2878 | if (1)
|
---|
2879 | raysOut = min((int)rays.size(), mVisualizationSamples);
|
---|
2880 |
|
---|
2881 | for (int i = 0; i < limit; ++ i)
|
---|
2882 | {
|
---|
2883 | cout << "creating output for view cell " << i << " ... ";
|
---|
2884 |
|
---|
2885 | VssRayContainer vcRays;
|
---|
2886 | Intersectable::NewMail();
|
---|
2887 | ViewCell *vc;
|
---|
2888 |
|
---|
2889 | if (0) // largest view cell pvs first
|
---|
2890 | vc = mViewCells[i];
|
---|
2891 | else
|
---|
2892 | vc = mViewCells[Random((int)mViewCells.size())];
|
---|
2893 |
|
---|
2894 | vector<ViewCell *> leaves;
|
---|
2895 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
2896 |
|
---|
2897 | if (1)
|
---|
2898 | {
|
---|
2899 | // check whether we can add the current ray to the output rays
|
---|
2900 | for (int k = 0; k < raysOut; ++ k)
|
---|
2901 | {
|
---|
2902 | VssRay *ray = rays[k];
|
---|
2903 | for (int j = 0; j < (int)ray->mViewCells.size(); ++ j)
|
---|
2904 | {
|
---|
2905 | ViewCell *rayvc = ray->mViewCells[j];
|
---|
2906 |
|
---|
2907 | if (leaves[0] == rayvc)
|
---|
2908 | vcRays.push_back(ray);
|
---|
2909 | }
|
---|
2910 | }
|
---|
2911 | }
|
---|
2912 |
|
---|
2913 | //bspLeaves[j]->Mail();
|
---|
2914 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
2915 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
2916 | exporter->SetWireframe();
|
---|
2917 |
|
---|
2918 | Material m;//= RandomMaterial();
|
---|
2919 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
2920 | exporter->SetForcedMaterial(m);
|
---|
2921 |
|
---|
2922 | ExportViewCellGeometry(exporter, vc);
|
---|
2923 |
|
---|
2924 |
|
---|
2925 | Debug << i << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc)
|
---|
2926 | << ", piercing rays=" << (int)vcRays.size() << endl;
|
---|
2927 | // << ", leaves=" << (int)vc->mLeaves.size() << endl;
|
---|
2928 |
|
---|
2929 |
|
---|
2930 | //-- export rays piercing this view cell
|
---|
2931 | if (1)
|
---|
2932 | {
|
---|
2933 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
2934 | }
|
---|
2935 | else
|
---|
2936 | {
|
---|
2937 |
|
---|
2938 | ViewCellContainer leaves;
|
---|
2939 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
2940 |
|
---|
2941 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
2942 |
|
---|
2943 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
2944 | {
|
---|
2945 | BspLeaf *l = dynamic_cast<BspViewCell *>(*lit)->mLeaf;
|
---|
2946 | exporter->ExportRays(l->mVssRays);
|
---|
2947 | }
|
---|
2948 | }
|
---|
2949 |
|
---|
2950 |
|
---|
2951 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
2952 | exporter->SetForcedMaterial(m);
|
---|
2953 |
|
---|
2954 | ObjectPvsMap::const_iterator it,
|
---|
2955 | it_end = vc->GetPvs().mEntries.end();
|
---|
2956 |
|
---|
2957 | exporter->SetFilled();
|
---|
2958 |
|
---|
2959 |
|
---|
2960 | // output PVS of view cell
|
---|
2961 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
2962 | {
|
---|
2963 |
|
---|
2964 | Intersectable *intersect = (*it).first;
|
---|
2965 |
|
---|
2966 | if (!intersect->Mailed())
|
---|
2967 | {
|
---|
2968 | Material m = RandomMaterial();
|
---|
2969 | exporter->SetForcedMaterial(m);
|
---|
2970 |
|
---|
2971 | exporter->ExportIntersectable(intersect);
|
---|
2972 | intersect->Mail();
|
---|
2973 | }
|
---|
2974 | }
|
---|
2975 |
|
---|
2976 |
|
---|
2977 | DEL_PTR(exporter);
|
---|
2978 | cout << "finished" << endl;
|
---|
2979 | }
|
---|
2980 |
|
---|
2981 | Debug << endl;
|
---|
2982 | }
|
---|
2983 |
|
---|
2984 |
|
---|
2985 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
2986 | const Vector3 &termination,
|
---|
2987 | ViewCellContainer &viewcells)
|
---|
2988 | {
|
---|
2989 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
2990 | }
|
---|
2991 |
|
---|
2992 |
|
---|
2993 | void VspBspViewCellsManager::ExportColor(Exporter *exporter,
|
---|
2994 | ViewCell *vc) const
|
---|
2995 | {
|
---|
2996 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
2997 |
|
---|
2998 | float importance = 0;
|
---|
2999 | static Material m;
|
---|
3000 |
|
---|
3001 | switch (mColorCode)
|
---|
3002 | {
|
---|
3003 | case 0: // Random
|
---|
3004 | {
|
---|
3005 | if (vcValid)
|
---|
3006 | {
|
---|
3007 | m = RandomMaterial();
|
---|
3008 | }
|
---|
3009 | else
|
---|
3010 | {
|
---|
3011 | m.mDiffuseColor.r = 0.0f;
|
---|
3012 | m.mDiffuseColor.g = 1.0f;
|
---|
3013 | m.mDiffuseColor.b = 0.0f;
|
---|
3014 | }
|
---|
3015 | }
|
---|
3016 | return;
|
---|
3017 | case 1: // pvs
|
---|
3018 | {
|
---|
3019 | importance = (float)vc->GetPvs().GetSize() /
|
---|
3020 | (float)mViewCellsStats.maxPvs;
|
---|
3021 |
|
---|
3022 | }
|
---|
3023 | break;
|
---|
3024 | case 2: // merges
|
---|
3025 | {
|
---|
3026 | int lSize = mViewCellsTree->GetSize(vc);
|
---|
3027 |
|
---|
3028 | importance = (float)lSize / (float)mViewCellsStats.maxLeaves;
|
---|
3029 | }
|
---|
3030 | break;
|
---|
3031 | case 3: // merge tree differene
|
---|
3032 | {
|
---|
3033 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
3034 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
3035 |
|
---|
3036 | }
|
---|
3037 | break;
|
---|
3038 | default:
|
---|
3039 | break;
|
---|
3040 | }
|
---|
3041 |
|
---|
3042 | // special color code for invalid view cells
|
---|
3043 | m.mDiffuseColor.r = importance;
|
---|
3044 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
3045 | m.mDiffuseColor.b = vcValid ? 1.0f : 0.0f;
|
---|
3046 |
|
---|
3047 | //Debug << "importance: " << importance << endl;
|
---|
3048 | exporter->SetForcedMaterial(m);
|
---|
3049 | }
|
---|
3050 |
|
---|
3051 |
|
---|
3052 | void VspBspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
3053 | ViewCell *vc) const
|
---|
3054 | {
|
---|
3055 | if (vc->GetMesh())
|
---|
3056 | {
|
---|
3057 | exporter->ExportMesh(vc->GetMesh());
|
---|
3058 |
|
---|
3059 | return;
|
---|
3060 | }
|
---|
3061 |
|
---|
3062 | BspNodeGeometry geom;
|
---|
3063 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
3064 | exporter->ExportPolygons(geom.mPolys);
|
---|
3065 | }
|
---|
3066 |
|
---|
3067 |
|
---|
3068 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
3069 | {
|
---|
3070 | ViewCellContainer leaves;
|
---|
3071 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
3072 |
|
---|
3073 | int maxDist = 0;
|
---|
3074 |
|
---|
3075 | // compute max height difference
|
---|
3076 | for (int i = 0; i < (int)leaves.size(); ++ i)
|
---|
3077 | for (int j = 0; j < (int)leaves.size(); ++ j)
|
---|
3078 | {
|
---|
3079 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(leaves[i])->mLeaf;
|
---|
3080 |
|
---|
3081 | if (i != j)
|
---|
3082 | {
|
---|
3083 | BspLeaf *leaf2 =dynamic_cast<BspViewCell *>(leaves[j])->mLeaf;
|
---|
3084 | int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
3085 | if (dist > maxDist)
|
---|
3086 | maxDist = dist;
|
---|
3087 | }
|
---|
3088 | }
|
---|
3089 |
|
---|
3090 | return maxDist;
|
---|
3091 | }
|
---|
3092 |
|
---|
3093 |
|
---|
3094 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point) const
|
---|
3095 | {
|
---|
3096 | if (!mVspBspTree)
|
---|
3097 | return NULL;
|
---|
3098 |
|
---|
3099 | if (!mViewSpaceBox.IsInside(point))
|
---|
3100 | return NULL;
|
---|
3101 |
|
---|
3102 | return mVspBspTree->GetViewCell(point);
|
---|
3103 | }
|
---|
3104 |
|
---|
3105 |
|
---|
3106 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
3107 | {
|
---|
3108 | if (vc->GetMesh())
|
---|
3109 | delete vc->GetMesh();
|
---|
3110 |
|
---|
3111 |
|
---|
3112 | BspNodeGeometry geom;
|
---|
3113 |
|
---|
3114 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
3115 |
|
---|
3116 | Mesh *mesh = new Mesh();
|
---|
3117 | geom.AddToMesh(*mesh);
|
---|
3118 | vc->SetMesh(mesh);
|
---|
3119 | mMeshContainer.push_back(mesh);
|
---|
3120 | }
|
---|
3121 |
|
---|
3122 |
|
---|
3123 | ViewCellsManager *ViewCellsManager::LoadViewCells(const string filename,
|
---|
3124 | ObjectContainer *objects)
|
---|
3125 | {
|
---|
3126 | ViewCellsParser parser;
|
---|
3127 |
|
---|
3128 | ViewCellsManager *vm = NULL;
|
---|
3129 |
|
---|
3130 | if (parser.ParseFile(filename, &vm, objects))
|
---|
3131 | {
|
---|
3132 | //vm->PrepareLoadedViewCells();
|
---|
3133 | vm->ResetViewCells();
|
---|
3134 |
|
---|
3135 | vm->mViewCellsFinished = true;
|
---|
3136 | vm->mMaxPvsSize = (int)objects->size();
|
---|
3137 |
|
---|
3138 | vm->FinalizeViewCells(true);
|
---|
3139 |
|
---|
3140 | Debug << (int)vm->mViewCells.size() << " view cells loaded" << endl;
|
---|
3141 | }
|
---|
3142 | else
|
---|
3143 | {
|
---|
3144 | Debug << "failed loading view cells" << endl;
|
---|
3145 | DEL_PTR(vm);
|
---|
3146 | }
|
---|
3147 |
|
---|
3148 |
|
---|
3149 | return vm;
|
---|
3150 | }
|
---|
3151 |
|
---|
3152 |
|
---|
3153 | inline bool ilt(Intersectable *obj1, Intersectable *obj2)
|
---|
3154 | {
|
---|
3155 | return obj1->mId < obj2->mId;
|
---|
3156 | }
|
---|
3157 |
|
---|
3158 |
|
---|
3159 | bool VspBspViewCellsManager::ExportViewCells(const string filename)
|
---|
3160 | {
|
---|
3161 | cout << "exporting view cells to xml ... ";
|
---|
3162 | std::ofstream stream;
|
---|
3163 |
|
---|
3164 | // for output we need unique ids for each view cell
|
---|
3165 | CreateUniqueViewCellIds();
|
---|
3166 |
|
---|
3167 |
|
---|
3168 | stream.open(filename.c_str());
|
---|
3169 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
3170 | stream << "<Visibility_Solution>" << endl;
|
---|
3171 |
|
---|
3172 | //-- the view space bounding box
|
---|
3173 | stream << "<ViewSpaceBox"
|
---|
3174 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
3175 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
3176 |
|
---|
3177 | //-- the type of the view cells hierarchy
|
---|
3178 | stream << "<Hierarchy name=\"vspBspTree\" />" << endl;
|
---|
3179 |
|
---|
3180 | //-- load the view cells itself, i.e., the ids and the pvs
|
---|
3181 | stream << "<ViewCells>" << endl;
|
---|
3182 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
3183 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
3184 | ExportViewCell(*it, stream);
|
---|
3185 |
|
---|
3186 | stream << "</ViewCells>" << endl;
|
---|
3187 |
|
---|
3188 | //-- load the hierarchy
|
---|
3189 | stream << "<Hierarchy>" << endl;
|
---|
3190 | mVspBspTree->Export(stream);
|
---|
3191 | stream << endl << "</Hierarchy>" << endl;
|
---|
3192 |
|
---|
3193 | stream << "</Visibility_Solution>" << endl;
|
---|
3194 | stream.close();
|
---|
3195 |
|
---|
3196 | cout << "finished" << endl;
|
---|
3197 |
|
---|
3198 | return true;
|
---|
3199 | }
|
---|
3200 |
|
---|
3201 |
|
---|
3202 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
3203 | {
|
---|
3204 | return mVspBspTree->CastBeam(beam);
|
---|
3205 | }
|
---|
3206 |
|
---|
3207 |
|
---|
3208 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
3209 | const bool createMesh)
|
---|
3210 | {
|
---|
3211 | CreateMesh(viewCell);
|
---|
3212 |
|
---|
3213 | float area = 0;
|
---|
3214 | float volume = 0;
|
---|
3215 |
|
---|
3216 | ViewCellContainer leaves;
|
---|
3217 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
3218 |
|
---|
3219 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
3220 |
|
---|
3221 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
3222 | {
|
---|
3223 | BspNodeGeometry geom;
|
---|
3224 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
3225 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
3226 |
|
---|
3227 | area += geom.GetArea();
|
---|
3228 | volume += geom.GetVolume();
|
---|
3229 | }
|
---|
3230 |
|
---|
3231 | viewCell->SetVolume(volume);
|
---|
3232 | viewCell->SetArea(area);
|
---|
3233 | }
|
---|
3234 |
|
---|
3235 |
|
---|
3236 | void VspBspViewCellsManager::PrepareLoadedViewCells()
|
---|
3237 | {
|
---|
3238 | // TODO: do I still need this here?
|
---|
3239 | if (0)
|
---|
3240 | mVspBspTree->RepairViewCellsLeafLists();
|
---|
3241 | }
|
---|
3242 |
|
---|
3243 |
|
---|
3244 |
|
---|
3245 | void VspBspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
3246 | vector<MergeCandidate> &candidates)
|
---|
3247 | {
|
---|
3248 | cout << "collecting merge candidates ... " << endl;
|
---|
3249 |
|
---|
3250 | if (mUseRaysForMerge)
|
---|
3251 | {
|
---|
3252 | mVspBspTree->CollectMergeCandidates(rays, candidates);
|
---|
3253 | }
|
---|
3254 | else
|
---|
3255 | {
|
---|
3256 | vector<BspLeaf *> leaves;
|
---|
3257 | mVspBspTree->CollectLeaves(leaves);
|
---|
3258 | mVspBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
3259 | }
|
---|
3260 |
|
---|
3261 | cout << "fininshed collecting candidates" << endl;
|
---|
3262 | }
|
---|
3263 |
|
---|
3264 |
|
---|
3265 | void VspBspViewCellsManager::AddCurrentViewCellsToHierarchy()
|
---|
3266 | {
|
---|
3267 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
3268 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
3269 | {
|
---|
3270 | }
|
---|
3271 | }
|
---|
3272 |
|
---|
3273 | //////////////////////////////////
|
---|
3274 | ViewCellsManager *ViewCellsManagerFactory::Create(const string mName)
|
---|
3275 | {
|
---|
3276 | //TODO
|
---|
3277 | return NULL;// new VspBspViewCellsManager();
|
---|
3278 | }
|
---|
3279 |
|
---|