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 | #define SAMPLE_AFTER_SUBDIVISION 0
|
---|
19 |
|
---|
20 |
|
---|
21 | ViewCellsManager::ViewCellsManager():
|
---|
22 | mRenderer(NULL),
|
---|
23 | mInitialSamples(0),
|
---|
24 | mConstructionSamples(0),
|
---|
25 | mPostProcessSamples(0),
|
---|
26 | mVisualizationSamples(0),
|
---|
27 | mTotalAreaValid(false),
|
---|
28 | mTotalArea(0.0f),
|
---|
29 | mViewCellsFinished(false),
|
---|
30 | mMaxPvsSize(9999999),
|
---|
31 | mMinPvsSize(0), // one means only empty view cells are invalid
|
---|
32 | mMaxPvsRatio(1.0)
|
---|
33 | {
|
---|
34 | mViewSpaceBox.Initialize();
|
---|
35 | ParseEnvironment();
|
---|
36 |
|
---|
37 | mViewCellsTree = new ViewCellsTree(this);
|
---|
38 | }
|
---|
39 |
|
---|
40 |
|
---|
41 | void ViewCellsManager::ParseEnvironment()
|
---|
42 | {
|
---|
43 | // visualization stuff
|
---|
44 | environment->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
|
---|
45 | environment->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
|
---|
46 | environment->GetFloatValue("ViewCells.maxPvsRatio", mMaxPvsRatio);
|
---|
47 | bool emptyViewCells = false;
|
---|
48 | environment->GetBoolValue("ViewCells.pruneEmptyViewCells", emptyViewCells);
|
---|
49 | environment->GetBoolValue("ViewCells.processOnlyValidViewCells", mOnlyValidViewCells);
|
---|
50 |
|
---|
51 | environment->GetIntValue("ViewCells.Construction.samples", mConstructionSamples);
|
---|
52 | environment->GetIntValue("ViewCells.PostProcess.samples", mPostProcessSamples);
|
---|
53 | environment->GetBoolValue("ViewCells.PostProcess.useRaysForMerge", mUseRaysForMerge);
|
---|
54 |
|
---|
55 | environment->GetIntValue("ViewCells.Visualization.samples", mVisualizationSamples);
|
---|
56 |
|
---|
57 | environment->GetIntValue("ViewCells.Construction.samplesPerPass", mSamplesPerPass);
|
---|
58 | environment->GetBoolValue("ViewCells.exportToFile", mExportViewCells);
|
---|
59 |
|
---|
60 |
|
---|
61 | environment->GetIntValue("ViewCells.active", mNumActiveViewCells);
|
---|
62 | environment->GetBoolValue("ViewCells.PostProcess.compress", mCompressViewCells);
|
---|
63 | environment->GetBoolValue("ViewCells.Visualization.useCuttingPlane", mUseCuttingPlaneForViz);
|
---|
64 |
|
---|
65 | environment->GetBoolValue("ViewCells.PostProcess.merge", mMergeViewCells);
|
---|
66 |
|
---|
67 | mMinPvsSize = emptyViewCells ? 1 : 0;
|
---|
68 |
|
---|
69 | char buf[50];
|
---|
70 | environment->GetStringValue("ViewCells.Visualization.colorCode", buf);
|
---|
71 |
|
---|
72 | if (strcmp(buf, "PVS") == 0)
|
---|
73 | mColorCode = 1;
|
---|
74 | else if (strcmp(buf, "MergedLeaves") == 0)
|
---|
75 | mColorCode = 2;
|
---|
76 | else if (strcmp(buf, "MergedTreeDiff") == 0)
|
---|
77 | mColorCode = 3;
|
---|
78 | else
|
---|
79 | mColorCode = 0;
|
---|
80 |
|
---|
81 | Debug << "colorCode: " << mColorCode << endl;
|
---|
82 | }
|
---|
83 |
|
---|
84 |
|
---|
85 | ViewCellsManager::~ViewCellsManager()
|
---|
86 | {
|
---|
87 | DEL_PTR(mRenderer);
|
---|
88 |
|
---|
89 | if (!ViewCellsTreeConstructed())
|
---|
90 | CLEAR_CONTAINER(mViewCells);
|
---|
91 | else
|
---|
92 | DEL_PTR(mViewCellsTree);
|
---|
93 |
|
---|
94 | CLEAR_CONTAINER(mMeshContainer);
|
---|
95 | }
|
---|
96 |
|
---|
97 |
|
---|
98 | int ViewCellsManager::CastPassSamples(const int samplesPerPass,
|
---|
99 | const int sampleType,
|
---|
100 | VssRayContainer &passSamples) const
|
---|
101 | {
|
---|
102 | SimpleRayContainer simpleRays;
|
---|
103 |
|
---|
104 | preprocessor->GenerateRays(samplesPerPass,
|
---|
105 | sampleType,
|
---|
106 | simpleRays);
|
---|
107 |
|
---|
108 | // shoot simple ray and add it to importance samples
|
---|
109 | preprocessor->CastRays(simpleRays, passSamples);
|
---|
110 |
|
---|
111 | return (int)passSamples.size();
|
---|
112 | }
|
---|
113 |
|
---|
114 |
|
---|
115 |
|
---|
116 | /// helper function which destroys rays or copies them into the output ray container
|
---|
117 | inline void disposeRays(VssRayContainer &rays, VssRayContainer *outRays)
|
---|
118 | {
|
---|
119 | cout << "disposing samples ... ";
|
---|
120 | long startTime = GetTime();
|
---|
121 | int n = (int)rays.size();
|
---|
122 |
|
---|
123 | if (outRays)
|
---|
124 | {
|
---|
125 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
126 |
|
---|
127 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
128 | {
|
---|
129 | outRays->push_back(*it);
|
---|
130 | }
|
---|
131 | }
|
---|
132 | else
|
---|
133 | {
|
---|
134 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
135 |
|
---|
136 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
137 | {
|
---|
138 | //(*it)->Unref();
|
---|
139 | if (!(*it)->IsActive())
|
---|
140 | delete (*it);
|
---|
141 | }
|
---|
142 | }
|
---|
143 |
|
---|
144 | cout << "finished" << endl;
|
---|
145 | Debug << "disposed " << n << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
146 | }
|
---|
147 |
|
---|
148 |
|
---|
149 | int ViewCellsManager::Construct(Preprocessor *preprocessor, VssRayContainer *outRays)
|
---|
150 | {
|
---|
151 | int numSamples = 0;
|
---|
152 | SimpleRayContainer simpleRays;
|
---|
153 |
|
---|
154 | VssRayContainer initialSamples;
|
---|
155 |
|
---|
156 | cout << "view cell construction: casting " << mInitialSamples << " initial samples ... ";
|
---|
157 | //-- construction rays => we use uniform samples for this
|
---|
158 | CastPassSamples(mInitialSamples,
|
---|
159 | //Preprocessor::DIRECTION_BASED_DISTRIBUTION,
|
---|
160 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION,
|
---|
161 | initialSamples);
|
---|
162 |
|
---|
163 | cout << "finished" << endl;
|
---|
164 |
|
---|
165 | // construct view cells
|
---|
166 | const int numInitialSamples =
|
---|
167 | ConstructSubdivision(preprocessor->mObjects, initialSamples);
|
---|
168 |
|
---|
169 | numSamples += numInitialSamples;
|
---|
170 |
|
---|
171 | // rays can be passed or deleted
|
---|
172 | disposeRays(initialSamples, outRays);
|
---|
173 |
|
---|
174 |
|
---|
175 | //-- guided rays are used for further sampling
|
---|
176 | const int n = mConstructionSamples; //+initialSamples;
|
---|
177 |
|
---|
178 | bool dirSamples = false;
|
---|
179 |
|
---|
180 | while (numSamples < n)
|
---|
181 | {
|
---|
182 | cout << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
|
---|
183 | VssRayContainer constructionSamples;
|
---|
184 |
|
---|
185 | const int samplingType =
|
---|
186 | dirSamples ?
|
---|
187 | Preprocessor::DIRECTION_BASED_DISTRIBUTION :
|
---|
188 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
189 |
|
---|
190 | if (0)
|
---|
191 | dirSamples = !dirSamples; // toggle sampling method
|
---|
192 | numSamples += CastPassSamples(mSamplesPerPass,
|
---|
193 | samplingType,
|
---|
194 | constructionSamples);
|
---|
195 |
|
---|
196 | cout << "finished" << endl;
|
---|
197 |
|
---|
198 | cout << "computing sample contribution for " << (int)constructionSamples.size() << " samples ... ";
|
---|
199 |
|
---|
200 | // TODO: leak?
|
---|
201 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
202 | ComputeSampleContributions(constructionSamples, true, false);
|
---|
203 | cout << "finished" << endl;
|
---|
204 |
|
---|
205 |
|
---|
206 | disposeRays(constructionSamples, outRays);
|
---|
207 |
|
---|
208 | cout << "total samples: " << numSamples << endl;
|
---|
209 | }
|
---|
210 |
|
---|
211 |
|
---|
212 | //-- post processing
|
---|
213 | VssRayContainer postProcessSamples;
|
---|
214 |
|
---|
215 | //-- construction rays => we use uniform samples for this
|
---|
216 | CastPassSamples(mPostProcessSamples,
|
---|
217 | Preprocessor::DIRECTION_BASED_DISTRIBUTION,
|
---|
218 | postProcessSamples);
|
---|
219 |
|
---|
220 | cout << "starting post processing and visualization" << endl;
|
---|
221 |
|
---|
222 | // store viewCells for postprocessing
|
---|
223 | const bool storeViewCells = true;
|
---|
224 |
|
---|
225 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
226 | ComputeSampleContributions(postProcessSamples, true, storeViewCells);
|
---|
227 | // merge the view cells
|
---|
228 | PostProcess(preprocessor->mObjects, postProcessSamples);
|
---|
229 |
|
---|
230 |
|
---|
231 | //-- visualization
|
---|
232 | VssRayContainer visualizationSamples;
|
---|
233 |
|
---|
234 | //-- construction rays => we use uniform samples for this
|
---|
235 | CastPassSamples(mVisualizationSamples,
|
---|
236 | Preprocessor::DIRECTION_BASED_DISTRIBUTION,
|
---|
237 | visualizationSamples);
|
---|
238 |
|
---|
239 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
240 | ComputeSampleContributions(visualizationSamples, true, storeViewCells);
|
---|
241 |
|
---|
242 | //Debug << "visualizationsamples: " << mVisualizationSamples << " " << visualizationSamples.size() << endl;
|
---|
243 | // different visualizations
|
---|
244 | Visualize(preprocessor->mObjects, visualizationSamples);
|
---|
245 |
|
---|
246 | disposeRays(visualizationSamples, outRays);
|
---|
247 |
|
---|
248 | return numSamples;
|
---|
249 | }
|
---|
250 |
|
---|
251 |
|
---|
252 | bool ViewCellsManager::CheckValidity(ViewCell *vc,
|
---|
253 | int minPvsSize,
|
---|
254 | int maxPvsSize) const
|
---|
255 | {
|
---|
256 |
|
---|
257 | if ((vc->GetPvs().GetSize() > maxPvsSize) ||
|
---|
258 | (vc->GetPvs().GetSize() < minPvsSize))
|
---|
259 | {
|
---|
260 | return false;
|
---|
261 | }
|
---|
262 |
|
---|
263 | return true;
|
---|
264 | }
|
---|
265 |
|
---|
266 |
|
---|
267 | bool ViewCellsManager::ViewCellsTreeConstructed() const
|
---|
268 | {
|
---|
269 | return mViewCellsTree->GetRoot();
|
---|
270 | }
|
---|
271 |
|
---|
272 |
|
---|
273 | void ViewCellsManager::SetValidity(ViewCell *vc,
|
---|
274 | int minPvs,
|
---|
275 | int maxPvs) const
|
---|
276 | {
|
---|
277 | vc->SetValid(CheckValidity(vc, minPvs, maxPvs));
|
---|
278 | }
|
---|
279 |
|
---|
280 |
|
---|
281 | void
|
---|
282 | ViewCellsManager::SetValidity(
|
---|
283 | int minPvsSize,
|
---|
284 | int maxPvsSize) const
|
---|
285 | {
|
---|
286 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
287 |
|
---|
288 | for (it = mViewCells.begin(); it != it_end; ++ it) {
|
---|
289 | SetValidity(*it, minPvsSize, maxPvsSize);
|
---|
290 | }
|
---|
291 | }
|
---|
292 |
|
---|
293 | void
|
---|
294 | ViewCellsManager::SetValidityPercentage(
|
---|
295 | const float minValid,
|
---|
296 | const float maxValid
|
---|
297 | )
|
---|
298 | {
|
---|
299 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
300 |
|
---|
301 | int start = mViewCells.size()*minValid;
|
---|
302 | int end = mViewCells.size()*maxValid;
|
---|
303 |
|
---|
304 | for (int i=0; i < mViewCells.size(); i++)
|
---|
305 | mViewCells[i]->SetValid(i >= start && i <= end);
|
---|
306 | }
|
---|
307 |
|
---|
308 | int
|
---|
309 | ViewCellsManager::CountValidViewcells() const
|
---|
310 | {
|
---|
311 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
312 | int valid = 0;
|
---|
313 | for (it = mViewCells.begin(); it != it_end; ++ it) {
|
---|
314 | if ((*it)->GetValid())
|
---|
315 | valid++;
|
---|
316 | }
|
---|
317 | return valid;
|
---|
318 | }
|
---|
319 |
|
---|
320 |
|
---|
321 | bool ViewCellsManager::LoadViewCellsGeometry(const string filename)
|
---|
322 | {
|
---|
323 | X3dParser parser;
|
---|
324 |
|
---|
325 | environment->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
|
---|
326 |
|
---|
327 | bool success = parser.ParseFile(filename, *this);
|
---|
328 | Debug << (int)mViewCells.size() << " view cells loaded" << endl;
|
---|
329 |
|
---|
330 | return success;
|
---|
331 | }
|
---|
332 |
|
---|
333 |
|
---|
334 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
335 | {
|
---|
336 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
337 |
|
---|
338 | return true;
|
---|
339 | }
|
---|
340 |
|
---|
341 |
|
---|
342 | float ViewCellsManager::GetViewSpaceVolume()
|
---|
343 | {
|
---|
344 | return mViewSpaceBox.GetVolume() * (2.0f * sqr((float)M_PI));
|
---|
345 | }
|
---|
346 |
|
---|
347 |
|
---|
348 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
349 | {
|
---|
350 | if (!ViewCellsConstructed())
|
---|
351 | return mViewSpaceBox.IsInside(viewPoint);
|
---|
352 | else {
|
---|
353 | if (!mViewSpaceBox.IsInside(viewPoint))
|
---|
354 | return false;
|
---|
355 | ViewCell *viewcell = GetViewCell(viewPoint);
|
---|
356 | if (!viewcell || !viewcell->GetValid())
|
---|
357 | return false;
|
---|
358 | }
|
---|
359 | return true;
|
---|
360 | }
|
---|
361 |
|
---|
362 |
|
---|
363 | float
|
---|
364 | ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays,
|
---|
365 | const bool addRays,
|
---|
366 | const bool storeViewCells
|
---|
367 | )
|
---|
368 | {
|
---|
369 | // view cells not yet constructed
|
---|
370 | if (!ViewCellsConstructed())
|
---|
371 | return 0.0f;
|
---|
372 |
|
---|
373 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
374 |
|
---|
375 | float sum = 0.0f;
|
---|
376 | for (it = rays.begin(); it != it_end; ++ it) {
|
---|
377 | sum += ComputeSampleContributions(*(*it), addRays, storeViewCells);
|
---|
378 | //ComputeSampleContributions(*(*it), addRays);
|
---|
379 | // sum += (*it)->mPvsContribution;
|
---|
380 | }
|
---|
381 | return sum;
|
---|
382 | }
|
---|
383 |
|
---|
384 |
|
---|
385 | void ViewCellsManager::EvaluateViewCellsStats()
|
---|
386 | {
|
---|
387 | mViewCellsStats.Reset();
|
---|
388 |
|
---|
389 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
390 |
|
---|
391 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
392 | {
|
---|
393 | mViewCellsTree->UpdateViewCellsStats(*it, mViewCellsStats);
|
---|
394 | }
|
---|
395 | }
|
---|
396 |
|
---|
397 |
|
---|
398 | void ViewCellsManager::EvaluateRenderStatistics(float &totalRenderCost,
|
---|
399 | float &expectedRenderCost,
|
---|
400 | float &deviation,
|
---|
401 | float &variance,
|
---|
402 | int &totalPvs,
|
---|
403 | float &avgRenderCost)
|
---|
404 | {
|
---|
405 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
406 |
|
---|
407 |
|
---|
408 | //-- compute expected value
|
---|
409 |
|
---|
410 | totalRenderCost = 0;
|
---|
411 | totalPvs = 0;
|
---|
412 |
|
---|
413 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
414 | {
|
---|
415 | ViewCell *vc = *it;
|
---|
416 | totalRenderCost += vc->GetPvs().GetSize() * vc->GetVolume();
|
---|
417 | totalPvs += (int)vc->GetPvs().GetSize();
|
---|
418 | }
|
---|
419 |
|
---|
420 | // normalize with view space box
|
---|
421 | totalRenderCost /= mViewSpaceBox.GetVolume();
|
---|
422 | expectedRenderCost = totalRenderCost / (float)mViewCells.size();
|
---|
423 | avgRenderCost = totalPvs / (float)mViewCells.size();
|
---|
424 |
|
---|
425 |
|
---|
426 | //-- compute standard defiation
|
---|
427 | variance = 0;
|
---|
428 | deviation = 0;
|
---|
429 |
|
---|
430 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
431 | {
|
---|
432 | ViewCell *vc = *it;
|
---|
433 |
|
---|
434 | float renderCost = vc->GetPvs().GetSize() * vc->GetVolume();
|
---|
435 | float dev;
|
---|
436 |
|
---|
437 | if (1)
|
---|
438 | dev = fabs(avgRenderCost - (float)vc->GetPvs().GetSize());
|
---|
439 | else
|
---|
440 | dev = fabs(expectedRenderCost - renderCost);
|
---|
441 |
|
---|
442 | deviation += dev;
|
---|
443 | variance += dev * dev;
|
---|
444 | }
|
---|
445 |
|
---|
446 | variance /= (float)mViewCells.size();
|
---|
447 | deviation /= (float)mViewCells.size();
|
---|
448 | }
|
---|
449 |
|
---|
450 |
|
---|
451 |
|
---|
452 | void ViewCellsManager::AddViewCell(ViewCell *viewCell)
|
---|
453 | {
|
---|
454 | mViewCells.push_back(viewCell);
|
---|
455 | }
|
---|
456 |
|
---|
457 |
|
---|
458 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
459 | {
|
---|
460 | return viewCell->GetArea();
|
---|
461 | }
|
---|
462 |
|
---|
463 |
|
---|
464 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
|
---|
465 | {
|
---|
466 | return viewCell->GetVolume();
|
---|
467 | }
|
---|
468 |
|
---|
469 |
|
---|
470 | void ViewCellsManager::DeriveViewCells(const ObjectContainer &objects,
|
---|
471 | ViewCellContainer &viewCells,
|
---|
472 | const int maxViewCells) const
|
---|
473 | {
|
---|
474 | // maximal max viewcells
|
---|
475 | int limit = maxViewCells > 0 ?
|
---|
476 | Min((int)objects.size(), maxViewCells) : (int)objects.size();
|
---|
477 |
|
---|
478 | for (int i = 0; i < limit; ++ i)
|
---|
479 | {
|
---|
480 | Intersectable *object = objects[i];
|
---|
481 |
|
---|
482 | // extract the mesh instances
|
---|
483 | if (object->Type() == Intersectable::MESH_INSTANCE)
|
---|
484 | {
|
---|
485 | MeshInstance *inst = dynamic_cast<MeshInstance *>(object);
|
---|
486 |
|
---|
487 | ViewCell *viewCell = GenerateViewCell(inst->GetMesh());
|
---|
488 | viewCells.push_back(viewCell);
|
---|
489 | }
|
---|
490 | //TODO: transformed meshes
|
---|
491 | }
|
---|
492 | }
|
---|
493 |
|
---|
494 |
|
---|
495 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
|
---|
496 | const float height) const
|
---|
497 | {
|
---|
498 | // one mesh per view cell
|
---|
499 | Mesh *mesh = new Mesh();
|
---|
500 |
|
---|
501 | //-- construct prism
|
---|
502 |
|
---|
503 | // bottom
|
---|
504 | mesh->mFaces.push_back(new Face(2,1,0));
|
---|
505 | // top
|
---|
506 | mesh->mFaces.push_back(new Face(3,4,5));
|
---|
507 | // sides
|
---|
508 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
|
---|
509 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
|
---|
510 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
|
---|
511 |
|
---|
512 | //--- extrude new vertices for top of prism
|
---|
513 | Vector3 triNorm = baseTri.GetNormal();
|
---|
514 |
|
---|
515 | Triangle3 topTri;
|
---|
516 |
|
---|
517 | // add base vertices and calculate top vertices
|
---|
518 | for (int i = 0; i < 3; ++ i)
|
---|
519 | mesh->mVertices.push_back(baseTri.mVertices[i]);
|
---|
520 |
|
---|
521 | // add top vertices
|
---|
522 | for (int i = 0; i < 3; ++ i)
|
---|
523 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
|
---|
524 |
|
---|
525 | mesh->Preprocess();
|
---|
526 |
|
---|
527 | return GenerateViewCell(mesh);
|
---|
528 | }
|
---|
529 |
|
---|
530 |
|
---|
531 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
|
---|
532 | {
|
---|
533 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
534 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
535 | {
|
---|
536 | Finalize(*it, createMesh);
|
---|
537 | }
|
---|
538 |
|
---|
539 | mTotalAreaValid = false;
|
---|
540 | }
|
---|
541 |
|
---|
542 |
|
---|
543 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
544 | {
|
---|
545 | // implemented in subclasses
|
---|
546 | }
|
---|
547 |
|
---|
548 |
|
---|
549 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCell *left, ViewCell *right) const
|
---|
550 | {
|
---|
551 | // generate parent view cell
|
---|
552 | ViewCellInterior *vc = new ViewCellInterior();//GenerateViewCell();
|
---|
553 |
|
---|
554 | vc->GetPvs() = left->GetPvs();
|
---|
555 | // merge pvs
|
---|
556 | vc->GetPvs().Merge(right->GetPvs());
|
---|
557 |
|
---|
558 | //-- merge ray sets
|
---|
559 | if (0)
|
---|
560 | {
|
---|
561 | stable_sort(left->mPiercingRays.begin(), left->mPiercingRays.end());
|
---|
562 | stable_sort(right->mPiercingRays.begin(), right->mPiercingRays.end());
|
---|
563 |
|
---|
564 | std::merge(left->mPiercingRays.begin(), left->mPiercingRays.end(),
|
---|
565 | right->mPiercingRays.begin(), right->mPiercingRays.end(),
|
---|
566 | vc->mPiercingRays.begin());
|
---|
567 | }
|
---|
568 |
|
---|
569 |
|
---|
570 | vc->SetupChildLink(left);
|
---|
571 | vc->SetupChildLink(right);
|
---|
572 |
|
---|
573 |
|
---|
574 | return vc;
|
---|
575 | }
|
---|
576 |
|
---|
577 |
|
---|
578 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCellContainer &children) const
|
---|
579 | {
|
---|
580 | ViewCellInterior *vc = new ViewCellInterior();//GenerateViewCell();
|
---|
581 |
|
---|
582 | ViewCellContainer::const_iterator it, it_end = children.end();
|
---|
583 |
|
---|
584 | for (it = children.begin(); it != it_end; ++ it)
|
---|
585 | {
|
---|
586 | // merge pvs
|
---|
587 | vc->GetPvs().Merge((*it)->GetPvs());
|
---|
588 |
|
---|
589 | vc->SetupChildLink(*it);
|
---|
590 | }
|
---|
591 |
|
---|
592 | return vc;
|
---|
593 | }
|
---|
594 |
|
---|
595 |
|
---|
596 | void ViewCellsManager::SetRenderer(Renderer *renderer)
|
---|
597 | {
|
---|
598 | mRenderer = renderer;
|
---|
599 | }
|
---|
600 |
|
---|
601 |
|
---|
602 | ViewCellsTree *ViewCellsManager::GetViewCellsTree()
|
---|
603 | {
|
---|
604 | return mViewCellsTree;
|
---|
605 | }
|
---|
606 |
|
---|
607 |
|
---|
608 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
|
---|
609 | {
|
---|
610 | mVisualizationSamples = visSamples;
|
---|
611 | }
|
---|
612 |
|
---|
613 |
|
---|
614 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
|
---|
615 | {
|
---|
616 | mConstructionSamples = constructionSamples;
|
---|
617 | }
|
---|
618 |
|
---|
619 |
|
---|
620 | void ViewCellsManager::SetInitialSamples(const int initialSamples)
|
---|
621 | {
|
---|
622 | mInitialSamples = initialSamples;
|
---|
623 | }
|
---|
624 |
|
---|
625 |
|
---|
626 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
|
---|
627 | {
|
---|
628 | mPostProcessSamples = postProcessSamples;
|
---|
629 | }
|
---|
630 |
|
---|
631 |
|
---|
632 | int ViewCellsManager::GetVisualizationSamples() const
|
---|
633 | {
|
---|
634 | return mVisualizationSamples;
|
---|
635 | }
|
---|
636 |
|
---|
637 |
|
---|
638 | int ViewCellsManager::GetConstructionSamples() const
|
---|
639 | {
|
---|
640 | return mConstructionSamples;
|
---|
641 | }
|
---|
642 |
|
---|
643 |
|
---|
644 | int ViewCellsManager::GetPostProcessSamples() const
|
---|
645 | {
|
---|
646 | return mPostProcessSamples;
|
---|
647 | }
|
---|
648 |
|
---|
649 |
|
---|
650 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
|
---|
651 | {
|
---|
652 | ViewCellContainer::const_iterator it = mViewCells.begin();
|
---|
653 | stat.viewcells = 0;
|
---|
654 | stat.minPvs = 100000000;
|
---|
655 | stat.maxPvs = 0;
|
---|
656 | stat.avgPvs = 0.0f;
|
---|
657 |
|
---|
658 | for (; it != mViewCells.end(); ++it) {
|
---|
659 | ViewCell *viewcell = *it;
|
---|
660 | int pvsSize = viewcell->GetPvs().GetSize();
|
---|
661 | if ( pvsSize < stat.minPvs)
|
---|
662 | stat.minPvs = pvsSize;
|
---|
663 | if (pvsSize > stat.maxPvs)
|
---|
664 | stat.maxPvs = pvsSize;
|
---|
665 | stat.avgPvs += pvsSize;
|
---|
666 | stat.viewcells++;
|
---|
667 | }
|
---|
668 | if (stat.viewcells)
|
---|
669 | stat.avgPvs/=stat.viewcells;
|
---|
670 | }
|
---|
671 |
|
---|
672 |
|
---|
673 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
|
---|
674 | {
|
---|
675 | s<<"############# Viewcell PVS STAT ##################\n";
|
---|
676 | PvsStatistics pvsStat;
|
---|
677 | GetPvsStatistics(pvsStat);
|
---|
678 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
|
---|
679 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
|
---|
680 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
|
---|
681 | }
|
---|
682 |
|
---|
683 |
|
---|
684 | int ViewCellsManager::CastBeam(Beam &beam)
|
---|
685 | {
|
---|
686 | return 0;
|
---|
687 | }
|
---|
688 |
|
---|
689 |
|
---|
690 | ViewCellContainer &ViewCellsManager::GetViewCells()
|
---|
691 | {
|
---|
692 | return mViewCells;
|
---|
693 | }
|
---|
694 |
|
---|
695 |
|
---|
696 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
|
---|
697 | {
|
---|
698 | mViewSpaceBox = box;
|
---|
699 |
|
---|
700 | CreateCuttingPlane();
|
---|
701 |
|
---|
702 | mTotalAreaValid = false;
|
---|
703 | }
|
---|
704 |
|
---|
705 |
|
---|
706 | void ViewCellsManager::CreateCuttingPlane()
|
---|
707 | {
|
---|
708 | int axis = 0;
|
---|
709 |
|
---|
710 | const float factor = 0.65;
|
---|
711 | Vector3 point = mViewSpaceBox.Min() + mViewSpaceBox.Size() * factor;
|
---|
712 |
|
---|
713 | if (mUseCuttingPlaneForViz)
|
---|
714 | environment->GetIntValue("ViewCells.Visualization.cuttingPlaneAxis", axis);
|
---|
715 |
|
---|
716 | Vector3 normal(0,0,0);
|
---|
717 | normal[axis] = 1;
|
---|
718 |
|
---|
719 | mCuttingPlane = Plane3(normal, point);
|
---|
720 | }
|
---|
721 |
|
---|
722 |
|
---|
723 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
|
---|
724 | {
|
---|
725 | return mViewSpaceBox;
|
---|
726 | }
|
---|
727 |
|
---|
728 |
|
---|
729 | void ViewCellsManager::ResetViewCells()
|
---|
730 | {
|
---|
731 | mViewCells.clear();
|
---|
732 |
|
---|
733 | CollectViewCells();
|
---|
734 |
|
---|
735 | mViewCellsStats.Reset();
|
---|
736 | EvaluateViewCellsStats();
|
---|
737 |
|
---|
738 | // has to be recomputed
|
---|
739 | mTotalAreaValid = false;
|
---|
740 | }
|
---|
741 |
|
---|
742 |
|
---|
743 | int ViewCellsManager::GetMaxPvsSize() const
|
---|
744 | {
|
---|
745 | return mMaxPvsSize;
|
---|
746 | }
|
---|
747 |
|
---|
748 |
|
---|
749 | void
|
---|
750 | ViewCellsManager::AddSampleContributions(const VssRayContainer &rays)
|
---|
751 | {
|
---|
752 | if (!ViewCellsConstructed())
|
---|
753 | return;
|
---|
754 |
|
---|
755 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
756 |
|
---|
757 | for (it = rays.begin(); it != it_end; ++ it) {
|
---|
758 | AddSampleContributions(*(*it));
|
---|
759 | }
|
---|
760 | }
|
---|
761 |
|
---|
762 |
|
---|
763 | int ViewCellsManager::GetMinPvsSize() const
|
---|
764 | {
|
---|
765 | return mMinPvsSize;
|
---|
766 | }
|
---|
767 |
|
---|
768 |
|
---|
769 |
|
---|
770 | float ViewCellsManager::GetMaxPvsRatio() const
|
---|
771 | {
|
---|
772 | return mMaxPvsRatio;
|
---|
773 | }
|
---|
774 |
|
---|
775 |
|
---|
776 | void
|
---|
777 | ViewCellsManager::AddSampleContributions(VssRay &ray)
|
---|
778 | {
|
---|
779 | // assumes viewcells have been stored...
|
---|
780 | ViewCellContainer *viewcells = &ray.mViewCells;
|
---|
781 | ViewCellContainer::const_iterator it;
|
---|
782 | for (it = viewcells->begin(); it != viewcells->end(); ++it) {
|
---|
783 | ViewCell *viewcell = *it;
|
---|
784 | if (viewcell->GetValid()) {
|
---|
785 | // if ray not outside of view space
|
---|
786 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
787 | }
|
---|
788 | }
|
---|
789 | }
|
---|
790 |
|
---|
791 |
|
---|
792 | float ViewCellsManager::ComputeSampleContributions(VssRay &ray,
|
---|
793 | const bool addRays,
|
---|
794 | const bool storeViewCells)
|
---|
795 | {
|
---|
796 | ViewCellContainer viewcells;
|
---|
797 |
|
---|
798 | ray.mPvsContribution = 0;
|
---|
799 | ray.mRelativePvsContribution = 0.0f;
|
---|
800 |
|
---|
801 | static Ray hray;
|
---|
802 | hray.Init(ray);
|
---|
803 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
804 | //Ray hray(ray);
|
---|
805 |
|
---|
806 | float tmin = 0, tmax = 1.0;
|
---|
807 |
|
---|
808 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
809 | return 0;
|
---|
810 |
|
---|
811 | Vector3 origin = hray.Extrap(tmin);
|
---|
812 | Vector3 termination = hray.Extrap(tmax);
|
---|
813 |
|
---|
814 | CastLineSegment(origin, termination, viewcells);
|
---|
815 | //Debug << "constribution: " << (int)viewcells.size() << endl;
|
---|
816 |
|
---|
817 | // copy viewcells memory efficiently
|
---|
818 | //const bool storeViewcells = !addRays;
|
---|
819 |
|
---|
820 | if (storeViewCells)
|
---|
821 | {
|
---|
822 | ray.mViewCells.reserve(viewcells.size());
|
---|
823 | ray.mViewCells = viewcells;
|
---|
824 | }
|
---|
825 |
|
---|
826 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
827 |
|
---|
828 |
|
---|
829 | for (; it != viewcells.end(); ++it) {
|
---|
830 | ViewCell *viewcell = *it;
|
---|
831 | if (viewcell->GetValid()) {
|
---|
832 | // if ray not outside of view space
|
---|
833 | float contribution;
|
---|
834 | if (viewcell->GetPvs().GetSampleContribution(ray.mTerminationObject,
|
---|
835 | ray.mPdf,
|
---|
836 | contribution
|
---|
837 | ))
|
---|
838 | ray.mPvsContribution++;
|
---|
839 | ray.mRelativePvsContribution += contribution;
|
---|
840 | }
|
---|
841 | }
|
---|
842 |
|
---|
843 | if (addRays)
|
---|
844 | for (it = viewcells.begin(); it != viewcells.end(); ++it) {
|
---|
845 | ViewCell *viewcell = *it;
|
---|
846 | if (viewcell->GetValid()) {
|
---|
847 | // if ray not outside of view space
|
---|
848 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
849 | }
|
---|
850 | }
|
---|
851 |
|
---|
852 | return ray.mRelativePvsContribution;
|
---|
853 | }
|
---|
854 |
|
---|
855 |
|
---|
856 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
857 | const int maxSize,
|
---|
858 | VssRayContainer &usedRays,
|
---|
859 | VssRayContainer *savedRays) const
|
---|
860 | {
|
---|
861 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
862 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
863 |
|
---|
864 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
865 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
866 | {
|
---|
867 | if (Random(1.0f) < prop)
|
---|
868 | usedRays.push_back(*it);
|
---|
869 | else if (savedRays)
|
---|
870 | savedRays->push_back(*it);
|
---|
871 | }
|
---|
872 | }
|
---|
873 |
|
---|
874 |
|
---|
875 | float ViewCellsManager::GetRendercost(ViewCell *viewCell, float objRendercost) const
|
---|
876 | {
|
---|
877 | return mViewCellsTree->GetPvsSize(viewCell) * objRendercost;
|
---|
878 | }
|
---|
879 |
|
---|
880 |
|
---|
881 | float ViewCellsManager::GetAccVcArea()
|
---|
882 | {
|
---|
883 | // if already computed
|
---|
884 | if (mTotalAreaValid)
|
---|
885 | return mTotalArea;
|
---|
886 |
|
---|
887 | mTotalArea = 0;
|
---|
888 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
889 |
|
---|
890 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
891 | {
|
---|
892 | //Debug << "area: " << GetArea(*it);
|
---|
893 | mTotalArea += GetArea(*it);
|
---|
894 | }
|
---|
895 |
|
---|
896 | mTotalAreaValid = true;
|
---|
897 |
|
---|
898 | return mTotalArea;
|
---|
899 | }
|
---|
900 |
|
---|
901 |
|
---|
902 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
903 | {
|
---|
904 | s << mViewCellsStats << endl;
|
---|
905 | }
|
---|
906 |
|
---|
907 |
|
---|
908 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
909 | {
|
---|
910 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
911 | mViewCells[i]->SetId(i);
|
---|
912 | }
|
---|
913 |
|
---|
914 |
|
---|
915 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter) const
|
---|
916 | {
|
---|
917 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
918 |
|
---|
919 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
920 | {
|
---|
921 | if (!mOnlyValidViewCells || (*it)->GetValid())
|
---|
922 | {
|
---|
923 | ExportColor(exporter, *it);
|
---|
924 | ExportViewCellGeometry(exporter, *it,
|
---|
925 | mUseCuttingPlaneForViz ? &mCuttingPlane : NULL);
|
---|
926 | }
|
---|
927 | }
|
---|
928 |
|
---|
929 | }
|
---|
930 |
|
---|
931 |
|
---|
932 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
933 | {
|
---|
934 | // convert to meshes
|
---|
935 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
936 |
|
---|
937 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
938 | {
|
---|
939 | if (!(*it)->GetMesh())
|
---|
940 | CreateMesh(*it);
|
---|
941 | }
|
---|
942 | }
|
---|
943 |
|
---|
944 |
|
---|
945 | bool ViewCellsManager::ExportViewCells(const string filename)
|
---|
946 | {
|
---|
947 | return false;
|
---|
948 | }
|
---|
949 |
|
---|
950 |
|
---|
951 | void ViewCellsManager::CollectViewCells(const int n)
|
---|
952 | {
|
---|
953 | mNumActiveViewCells = n;
|
---|
954 | mViewCells.clear();
|
---|
955 | CollectViewCells();
|
---|
956 | }
|
---|
957 |
|
---|
958 |
|
---|
959 |
|
---|
960 | /**********************************************************************/
|
---|
961 | /* BspViewCellsManager implementation */
|
---|
962 | /**********************************************************************/
|
---|
963 |
|
---|
964 |
|
---|
965 | BspViewCellsManager::BspViewCellsManager(BspTree *bspTree):
|
---|
966 | ViewCellsManager(), mBspTree(bspTree)
|
---|
967 | {
|
---|
968 | environment->GetIntValue("BspTree.Construction.samples", mInitialSamples);
|
---|
969 | mBspTree->SetViewCellsManager(this);
|
---|
970 | mBspTree->mViewCellsTree = mViewCellsTree;
|
---|
971 | }
|
---|
972 |
|
---|
973 |
|
---|
974 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
975 | {
|
---|
976 | return mBspTree->GetRoot() != NULL;
|
---|
977 | }
|
---|
978 |
|
---|
979 |
|
---|
980 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
981 | {
|
---|
982 | return new BspViewCell(mesh);
|
---|
983 | }
|
---|
984 |
|
---|
985 |
|
---|
986 | int BspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
987 | const VssRayContainer &rays)
|
---|
988 | {
|
---|
989 | // if view cells were already constructed
|
---|
990 | if (ViewCellsConstructed())
|
---|
991 | return 0;
|
---|
992 |
|
---|
993 | int sampleContributions = 0;
|
---|
994 |
|
---|
995 | // construct view cells using the collected samples
|
---|
996 | RayContainer constructionRays;
|
---|
997 | VssRayContainer savedRays;
|
---|
998 |
|
---|
999 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
1000 |
|
---|
1001 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
1002 |
|
---|
1003 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
1004 |
|
---|
1005 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
1006 | {
|
---|
1007 | if (Random(1.0f) < prop)
|
---|
1008 | constructionRays.push_back(new Ray(*(*it)));
|
---|
1009 | else
|
---|
1010 | savedRays.push_back(*it);
|
---|
1011 | }
|
---|
1012 |
|
---|
1013 | if (mViewCells.empty())
|
---|
1014 | {
|
---|
1015 | // no view cells loaded
|
---|
1016 | mBspTree->Construct(objects, constructionRays, &mViewSpaceBox);
|
---|
1017 | // collect final view cells
|
---|
1018 | mBspTree->CollectViewCells(mViewCells);
|
---|
1019 | }
|
---|
1020 | else
|
---|
1021 | {
|
---|
1022 | mBspTree->Construct(mViewCells);
|
---|
1023 | }
|
---|
1024 |
|
---|
1025 | // destroy rays created only for construction
|
---|
1026 | CLEAR_CONTAINER(constructionRays);
|
---|
1027 |
|
---|
1028 | Debug << mBspTree->GetStatistics() << endl;
|
---|
1029 |
|
---|
1030 | //EvaluateViewCellsStats();
|
---|
1031 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
1032 |
|
---|
1033 | // recast rest of the rays
|
---|
1034 | ComputeSampleContributions(savedRays, true, false);
|
---|
1035 |
|
---|
1036 |
|
---|
1037 | ResetViewCells();
|
---|
1038 |
|
---|
1039 | Debug << "\nView cells after " << (int)savedRays.size()
|
---|
1040 | << " samples:\n" << mViewCellsStats << endl;
|
---|
1041 |
|
---|
1042 | if (1) // export initial view cells
|
---|
1043 | {
|
---|
1044 | cout << "exporting initial view cells (=leaves) ... ";
|
---|
1045 | Exporter *exporter = Exporter::GetExporter("view_cells.x3d");
|
---|
1046 |
|
---|
1047 | if (exporter)
|
---|
1048 | {
|
---|
1049 |
|
---|
1050 | if (0 && mExportRays)
|
---|
1051 | exporter->ExportRays(rays, RgbColor(1, 1, 1));
|
---|
1052 |
|
---|
1053 |
|
---|
1054 | if (mExportGeometry)
|
---|
1055 | exporter->ExportGeometry(objects);
|
---|
1056 |
|
---|
1057 | //exporter->SetWireframe();
|
---|
1058 | exporter->SetFilled();
|
---|
1059 | ExportViewCellsForViz(exporter);
|
---|
1060 |
|
---|
1061 |
|
---|
1062 | delete exporter;
|
---|
1063 | }
|
---|
1064 | cout << "finished" << endl;
|
---|
1065 | }
|
---|
1066 |
|
---|
1067 |
|
---|
1068 | return sampleContributions;
|
---|
1069 | }
|
---|
1070 |
|
---|
1071 |
|
---|
1072 | void BspViewCellsManager::CollectViewCells()
|
---|
1073 | {
|
---|
1074 | // view cells tree constructed
|
---|
1075 | if (!ViewCellsTreeConstructed())
|
---|
1076 | {
|
---|
1077 | mBspTree->CollectViewCells(mViewCells);
|
---|
1078 | }
|
---|
1079 | else
|
---|
1080 | {
|
---|
1081 | // we can use the view cells tree hierarchy to get the right set
|
---|
1082 | mViewCellsTree->CollectBestViewCellSet(mViewCells,
|
---|
1083 | mNumActiveViewCells);
|
---|
1084 | }
|
---|
1085 | }
|
---|
1086 |
|
---|
1087 |
|
---|
1088 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
1089 | {
|
---|
1090 | // compute view cell area as subsititute for probability
|
---|
1091 | if (1)
|
---|
1092 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
1093 | else
|
---|
1094 | return GetArea(viewCell) / GetAccVcArea();
|
---|
1095 | }
|
---|
1096 |
|
---|
1097 |
|
---|
1098 |
|
---|
1099 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
1100 | const Vector3 &termination,
|
---|
1101 | ViewCellContainer &viewcells)
|
---|
1102 | {
|
---|
1103 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
1104 | }
|
---|
1105 |
|
---|
1106 |
|
---|
1107 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
1108 | const VssRayContainer &rays)
|
---|
1109 | {
|
---|
1110 | if (!ViewCellsConstructed())
|
---|
1111 | {
|
---|
1112 | Debug << "view cells not constructed" << endl;
|
---|
1113 | return 0;
|
---|
1114 | }
|
---|
1115 |
|
---|
1116 |
|
---|
1117 | // view cells already finished before post processing step (i.e. because they were loaded)
|
---|
1118 | if (mViewCellsFinished)
|
---|
1119 | {
|
---|
1120 | FinalizeViewCells(true);
|
---|
1121 | EvaluateViewCellsStats();
|
---|
1122 |
|
---|
1123 | return 0;
|
---|
1124 | }
|
---|
1125 |
|
---|
1126 | //-- post processing of bsp view cells
|
---|
1127 |
|
---|
1128 | int vcSize = 0;
|
---|
1129 | int pvsSize = 0;
|
---|
1130 |
|
---|
1131 | EvaluateViewCellsStats();
|
---|
1132 | Debug << "\noriginal view cell partition:\n" << mViewCellsStats << endl;
|
---|
1133 |
|
---|
1134 | mRenderer->RenderScene();
|
---|
1135 | SimulationStatistics ss;
|
---|
1136 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
1137 |
|
---|
1138 | Debug << ss << endl;
|
---|
1139 |
|
---|
1140 |
|
---|
1141 |
|
---|
1142 | //-- merge view cells
|
---|
1143 | int merged;
|
---|
1144 |
|
---|
1145 | if (mMergeViewCells)
|
---|
1146 | {
|
---|
1147 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
1148 | long startTime = GetTime();
|
---|
1149 |
|
---|
1150 | VssRayContainer postProcessRays;
|
---|
1151 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
1152 |
|
---|
1153 | merged = mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
1154 |
|
---|
1155 | //-- stats and visualizations
|
---|
1156 | cout << "finished" << endl;
|
---|
1157 | cout << "merged " << merged << " view cells in "
|
---|
1158 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
1159 |
|
---|
1160 | Debug << "Postprocessing: Merged " << merged << " view cells in "
|
---|
1161 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs"
|
---|
1162 | << "using " << (int)rays.size() << " samples" << endl << endl;
|
---|
1163 | }
|
---|
1164 |
|
---|
1165 | // reset view cells and stats
|
---|
1166 | ResetViewCells();
|
---|
1167 | Debug << "\nView cells after merge:\n" << mViewCellsStats << endl;
|
---|
1168 |
|
---|
1169 | int savedColorCode = mColorCode;
|
---|
1170 |
|
---|
1171 | //BspLeaf::NewMail();
|
---|
1172 | if (1) // export merged view cells
|
---|
1173 | {
|
---|
1174 | mColorCode = 0;
|
---|
1175 |
|
---|
1176 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.x3d");
|
---|
1177 |
|
---|
1178 |
|
---|
1179 | cout << "exporting view cells after merge ... ";
|
---|
1180 |
|
---|
1181 | if (exporter)
|
---|
1182 | {
|
---|
1183 | if (mExportGeometry)
|
---|
1184 | exporter->ExportGeometry(objects);
|
---|
1185 |
|
---|
1186 | //exporter->SetWireframe();
|
---|
1187 | exporter->SetFilled();
|
---|
1188 | ExportViewCellsForViz(exporter);
|
---|
1189 |
|
---|
1190 |
|
---|
1191 | delete exporter;
|
---|
1192 | }
|
---|
1193 | cout << "finished" << endl;
|
---|
1194 | }
|
---|
1195 |
|
---|
1196 | if (1) // export merged view cells
|
---|
1197 | {
|
---|
1198 | mColorCode = 1;
|
---|
1199 |
|
---|
1200 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.x3d");
|
---|
1201 |
|
---|
1202 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
1203 |
|
---|
1204 | if (exporter)
|
---|
1205 | {
|
---|
1206 | //exporter->SetWireframe();
|
---|
1207 |
|
---|
1208 | if (mExportGeometry)
|
---|
1209 | exporter->ExportGeometry(objects);
|
---|
1210 |
|
---|
1211 | //exporter->SetWireframe();
|
---|
1212 | exporter->SetFilled();
|
---|
1213 | ExportViewCellsForViz(exporter);
|
---|
1214 |
|
---|
1215 | delete exporter;
|
---|
1216 | }
|
---|
1217 | cout << "finished" << endl;
|
---|
1218 | }
|
---|
1219 |
|
---|
1220 | mColorCode = savedColorCode;
|
---|
1221 |
|
---|
1222 | FinalizeViewCells(true);
|
---|
1223 |
|
---|
1224 | // write view cells to disc
|
---|
1225 | if (mExportViewCells)
|
---|
1226 | {
|
---|
1227 | char buff[100];
|
---|
1228 | environment->GetStringValue("ViewCells.filename", buff);
|
---|
1229 | string vcFilename(buff);
|
---|
1230 |
|
---|
1231 | ExportViewCells(buff);
|
---|
1232 | }
|
---|
1233 |
|
---|
1234 | return merged;
|
---|
1235 | }
|
---|
1236 |
|
---|
1237 |
|
---|
1238 | BspViewCellsManager::~BspViewCellsManager()
|
---|
1239 | {
|
---|
1240 | }
|
---|
1241 |
|
---|
1242 |
|
---|
1243 | int BspViewCellsManager::GetType() const
|
---|
1244 | {
|
---|
1245 | return BSP;
|
---|
1246 | }
|
---|
1247 |
|
---|
1248 |
|
---|
1249 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
1250 | const VssRayContainer &sampleRays)
|
---|
1251 | {
|
---|
1252 | if (!ViewCellsConstructed())
|
---|
1253 | return;
|
---|
1254 |
|
---|
1255 | int savedColorCode = mColorCode;
|
---|
1256 |
|
---|
1257 |
|
---|
1258 |
|
---|
1259 | if (1) // export final view cells
|
---|
1260 | {
|
---|
1261 | mColorCode = 1;
|
---|
1262 |
|
---|
1263 | Exporter *exporter = Exporter::GetExporter("final_view_cells.x3d");
|
---|
1264 |
|
---|
1265 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
1266 |
|
---|
1267 | if (exporter)
|
---|
1268 | {
|
---|
1269 | //exporter->SetWireframe();
|
---|
1270 |
|
---|
1271 | if (mExportGeometry)
|
---|
1272 | exporter->ExportGeometry(objects);
|
---|
1273 |
|
---|
1274 | //exporter->SetWireframe();
|
---|
1275 | exporter->SetFilled();
|
---|
1276 | ExportViewCellsForViz(exporter);
|
---|
1277 |
|
---|
1278 | delete exporter;
|
---|
1279 | }
|
---|
1280 | cout << "finished" << endl;
|
---|
1281 | }
|
---|
1282 |
|
---|
1283 | mColorCode = savedColorCode;
|
---|
1284 |
|
---|
1285 | //-- visualization of the BSP splits
|
---|
1286 | bool exportSplits = false;
|
---|
1287 | environment->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
1288 |
|
---|
1289 | if (exportSplits)
|
---|
1290 | {
|
---|
1291 | cout << "exporting splits ... ";
|
---|
1292 | ExportSplits(objects);
|
---|
1293 | cout << "finished" << endl;
|
---|
1294 | }
|
---|
1295 |
|
---|
1296 | // export single view cells
|
---|
1297 | ExportBspPvs(objects);
|
---|
1298 | }
|
---|
1299 |
|
---|
1300 |
|
---|
1301 | inline bool vc_gt(ViewCell *a, ViewCell *b)
|
---|
1302 | {
|
---|
1303 | return a->GetPvs().GetSize() > b->GetPvs().GetSize();
|
---|
1304 | }
|
---|
1305 |
|
---|
1306 |
|
---|
1307 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
1308 | {
|
---|
1309 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
1310 |
|
---|
1311 | if (exporter)
|
---|
1312 | {
|
---|
1313 | //exporter->SetFilled();
|
---|
1314 |
|
---|
1315 | if (mExportGeometry)
|
---|
1316 | exporter->ExportGeometry(objects);
|
---|
1317 |
|
---|
1318 | Material m;
|
---|
1319 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1320 | exporter->SetForcedMaterial(m);
|
---|
1321 | exporter->SetWireframe();
|
---|
1322 |
|
---|
1323 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
1324 |
|
---|
1325 | //NOTE: take forced material, else big scenes cannot be viewed
|
---|
1326 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
1327 | exporter->SetForcedMaterial(m);
|
---|
1328 | //exporter->ResetForcedMaterial();
|
---|
1329 |
|
---|
1330 | delete exporter;
|
---|
1331 | }
|
---|
1332 | }
|
---|
1333 |
|
---|
1334 |
|
---|
1335 | void BspViewCellsManager::ExportBspPvs(const ObjectContainer &objects)
|
---|
1336 | {
|
---|
1337 | const int leafOut = 10;
|
---|
1338 |
|
---|
1339 | ViewCell::NewMail();
|
---|
1340 |
|
---|
1341 | //-- some rays for output
|
---|
1342 | const int raysOut = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
1343 |
|
---|
1344 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
1345 | Debug << "\nOutput view cells: " << endl;
|
---|
1346 |
|
---|
1347 | // sort view cells to get largest view cells
|
---|
1348 | if (0)
|
---|
1349 | stable_sort(mViewCells.begin(), mViewCells.end(), vc_gt);
|
---|
1350 |
|
---|
1351 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
1352 |
|
---|
1353 | for (int i = 0; i < limit; ++ i)
|
---|
1354 | {
|
---|
1355 | cout << "creating output for view cell " << i << " ... ";
|
---|
1356 | VssRayContainer vcRays;
|
---|
1357 | Intersectable::NewMail();
|
---|
1358 | ViewCell *vc;
|
---|
1359 |
|
---|
1360 | if (0)
|
---|
1361 | vc = mViewCells[i];
|
---|
1362 | else
|
---|
1363 | vc = mViewCells[Random((int)mViewCells.size())];
|
---|
1364 |
|
---|
1365 | cout << "creating output for view cell " << i << " ... ";
|
---|
1366 |
|
---|
1367 | if(0)
|
---|
1368 | {
|
---|
1369 | // check whether we can add the current ray to the output rays
|
---|
1370 | for (int k = 0; k < raysOut; ++ k)
|
---|
1371 | {
|
---|
1372 | BspRay *ray = mBspRays[k];
|
---|
1373 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
1374 | {
|
---|
1375 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
1376 | if (vc == leaf->GetViewCell())
|
---|
1377 | vcRays.push_back(ray->vssRay);
|
---|
1378 | }
|
---|
1379 | }
|
---|
1380 | }
|
---|
1381 |
|
---|
1382 | //bspLeaves[j]->Mail();
|
---|
1383 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
1384 |
|
---|
1385 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1386 |
|
---|
1387 | exporter->SetWireframe();
|
---|
1388 |
|
---|
1389 | Material m;//= RandomMaterial();
|
---|
1390 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
1391 | exporter->SetForcedMaterial(m);
|
---|
1392 |
|
---|
1393 | ExportViewCellGeometry(exporter, vc);
|
---|
1394 |
|
---|
1395 | // export rays piercing this view cell
|
---|
1396 | exporter->ExportRays(vcRays, RgbColor(0, 1, 0));
|
---|
1397 |
|
---|
1398 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1399 | exporter->SetForcedMaterial(m);
|
---|
1400 |
|
---|
1401 | ObjectPvsMap::const_iterator it,
|
---|
1402 | it_end = vc->GetPvs().mEntries.end();
|
---|
1403 |
|
---|
1404 | exporter->SetFilled();
|
---|
1405 |
|
---|
1406 | // output PVS of view cell
|
---|
1407 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
1408 | {
|
---|
1409 | Intersectable *intersect = (*it).first;
|
---|
1410 |
|
---|
1411 | if (!intersect->Mailed())
|
---|
1412 | {
|
---|
1413 | Material m = RandomMaterial();
|
---|
1414 | exporter->SetForcedMaterial(m);
|
---|
1415 |
|
---|
1416 | exporter->ExportIntersectable(intersect);
|
---|
1417 | intersect->Mail();
|
---|
1418 | }
|
---|
1419 | }
|
---|
1420 |
|
---|
1421 | DEL_PTR(exporter);
|
---|
1422 | cout << "finished" << endl;
|
---|
1423 | }
|
---|
1424 |
|
---|
1425 | Debug << endl;
|
---|
1426 | }
|
---|
1427 |
|
---|
1428 |
|
---|
1429 | void BspViewCellsManager::ExportColor(Exporter *exporter,
|
---|
1430 | ViewCell *vc) const
|
---|
1431 | {
|
---|
1432 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
1433 |
|
---|
1434 | float importance = 0;
|
---|
1435 | static Material m;
|
---|
1436 |
|
---|
1437 | switch (mColorCode)
|
---|
1438 | {
|
---|
1439 | case 0: // Random
|
---|
1440 | {
|
---|
1441 | if (vcValid)
|
---|
1442 | {
|
---|
1443 | m.mDiffuseColor.r = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
1444 | m.mDiffuseColor.g = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
1445 | m.mDiffuseColor.b = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
1446 | }
|
---|
1447 | else
|
---|
1448 | {
|
---|
1449 | m.mDiffuseColor.r = 0.0f;
|
---|
1450 | m.mDiffuseColor.g = 1.0f;
|
---|
1451 | m.mDiffuseColor.b = 0.0f;
|
---|
1452 | }
|
---|
1453 |
|
---|
1454 | exporter->SetForcedMaterial(m);
|
---|
1455 | return;
|
---|
1456 | }
|
---|
1457 |
|
---|
1458 | case 1: // pvs
|
---|
1459 | {
|
---|
1460 | importance = (float)vc->GetPvs().GetSize() /
|
---|
1461 | (float)mViewCellsStats.maxPvs;
|
---|
1462 |
|
---|
1463 | }
|
---|
1464 | break;
|
---|
1465 | case 2: // merges
|
---|
1466 | {
|
---|
1467 | int lSize = mViewCellsTree->GetSize(vc);
|
---|
1468 | importance = (float)lSize / (float)mViewCellsStats.maxLeaves;
|
---|
1469 | }
|
---|
1470 | //break;
|
---|
1471 | case 3: // merge tree differene
|
---|
1472 | {
|
---|
1473 | // TODO
|
---|
1474 | //importance = (float)GetMaxTreeDiff(vc) /
|
---|
1475 | // (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
1476 |
|
---|
1477 | }
|
---|
1478 | break;
|
---|
1479 | default:
|
---|
1480 | break;
|
---|
1481 | }
|
---|
1482 |
|
---|
1483 | // special color code for invalid view cells
|
---|
1484 | m.mDiffuseColor.r = importance;
|
---|
1485 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
1486 | m.mDiffuseColor.b = vcValid ? 1.0f : 0.0f;
|
---|
1487 |
|
---|
1488 | //Debug << "importance: " << importance << endl;
|
---|
1489 | exporter->SetForcedMaterial(m);
|
---|
1490 | }
|
---|
1491 |
|
---|
1492 |
|
---|
1493 | void BspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
1494 | ViewCell *vc,
|
---|
1495 | const Plane3 *cuttingPlane) const
|
---|
1496 | {
|
---|
1497 | if (vc->GetMesh())
|
---|
1498 | {
|
---|
1499 | exporter->ExportMesh(vc->GetMesh());
|
---|
1500 | return;
|
---|
1501 | }
|
---|
1502 |
|
---|
1503 | BspNodeGeometry geom;
|
---|
1504 | mBspTree->ConstructGeometry(vc, geom);
|
---|
1505 |
|
---|
1506 |
|
---|
1507 | if (cuttingPlane)
|
---|
1508 | {
|
---|
1509 | BspNodeGeometry front;
|
---|
1510 | BspNodeGeometry back;
|
---|
1511 |
|
---|
1512 | geom.SplitGeometry(front,
|
---|
1513 | back,
|
---|
1514 | *cuttingPlane,
|
---|
1515 | mViewSpaceBox,
|
---|
1516 | 0.0001f);
|
---|
1517 |
|
---|
1518 | if ((int)back.mPolys.size() >= 3)
|
---|
1519 | exporter->ExportPolygons(back.mPolys);
|
---|
1520 | }
|
---|
1521 | else
|
---|
1522 | {
|
---|
1523 |
|
---|
1524 | exporter->ExportPolygons(geom.mPolys);
|
---|
1525 | }
|
---|
1526 | }
|
---|
1527 |
|
---|
1528 |
|
---|
1529 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
1530 | {
|
---|
1531 | if (vc->GetMesh())
|
---|
1532 | delete vc->GetMesh();
|
---|
1533 |
|
---|
1534 | BspNodeGeometry geom;
|
---|
1535 |
|
---|
1536 | mBspTree->ConstructGeometry(vc, geom);
|
---|
1537 |
|
---|
1538 | Mesh *mesh = new Mesh();
|
---|
1539 | geom.AddToMesh(*mesh);
|
---|
1540 | vc->SetMesh(mesh);
|
---|
1541 | mMeshContainer.push_back(mesh);
|
---|
1542 | }
|
---|
1543 |
|
---|
1544 |
|
---|
1545 | void BspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
1546 | const bool createMesh)
|
---|
1547 | {
|
---|
1548 | CreateMesh(viewCell);
|
---|
1549 |
|
---|
1550 | float area = 0;
|
---|
1551 | float volume = 0;
|
---|
1552 |
|
---|
1553 | ViewCellContainer leaves;
|
---|
1554 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
1555 |
|
---|
1556 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
1557 |
|
---|
1558 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
1559 | {
|
---|
1560 | BspNodeGeometry geom;
|
---|
1561 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
1562 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
1563 |
|
---|
1564 | area += geom.GetArea();
|
---|
1565 | volume += geom.GetVolume();
|
---|
1566 | }
|
---|
1567 |
|
---|
1568 | viewCell->SetVolume(volume);
|
---|
1569 | viewCell->SetArea(area);
|
---|
1570 | }
|
---|
1571 |
|
---|
1572 |
|
---|
1573 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point) const
|
---|
1574 | {
|
---|
1575 | if (!mBspTree)
|
---|
1576 | return NULL;
|
---|
1577 |
|
---|
1578 | if (!mViewSpaceBox.IsInside(point))
|
---|
1579 | return NULL;
|
---|
1580 |
|
---|
1581 | return mBspTree->GetViewCell(point);
|
---|
1582 | }
|
---|
1583 |
|
---|
1584 |
|
---|
1585 | void BspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
1586 | vector<MergeCandidate> &candidates)
|
---|
1587 | {
|
---|
1588 | cout << "collecting merge candidates ... " << endl;
|
---|
1589 |
|
---|
1590 | if (mUseRaysForMerge)
|
---|
1591 | {
|
---|
1592 | mBspTree->CollectMergeCandidates(rays, candidates);
|
---|
1593 | }
|
---|
1594 | else
|
---|
1595 | {
|
---|
1596 | vector<BspLeaf *> leaves;
|
---|
1597 | mBspTree->CollectLeaves(leaves);
|
---|
1598 | mBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
1599 | }
|
---|
1600 |
|
---|
1601 | cout << "fininshed collecting candidates" << endl;
|
---|
1602 | }
|
---|
1603 |
|
---|
1604 |
|
---|
1605 |
|
---|
1606 | bool BspViewCellsManager::ExportViewCells(const string filename)
|
---|
1607 | {
|
---|
1608 | cout << "exporting view cells to xml ... ";
|
---|
1609 | std::ofstream stream;
|
---|
1610 |
|
---|
1611 | // for output we need unique ids for each view cell
|
---|
1612 | CreateUniqueViewCellIds();
|
---|
1613 |
|
---|
1614 |
|
---|
1615 | stream.open(filename.c_str());
|
---|
1616 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
1617 | stream << "<Visibility_Solution>" << endl;
|
---|
1618 |
|
---|
1619 | //-- the view space bounding box
|
---|
1620 | stream << "<ViewSpaceBox"
|
---|
1621 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
1622 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
1623 |
|
---|
1624 | //-- the type of the view cells hierarchy
|
---|
1625 | //stream << "<Hierarchy name=\"bspTree\" />" << endl;
|
---|
1626 | stream << "<Hierarchy name=\"vspBspTree\" />" << endl; // write vsp bsp here because can use same tree and is bug free
|
---|
1627 | //-- load the view cells itself, i.e., the ids and the pvs
|
---|
1628 | stream << "<ViewCells>" << endl;
|
---|
1629 |
|
---|
1630 | #if 0
|
---|
1631 |
|
---|
1632 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
1633 |
|
---|
1634 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
1635 | ExportViewCell(*it, stream);
|
---|
1636 | #else
|
---|
1637 | mViewCellsTree->Export(stream);
|
---|
1638 | #endif
|
---|
1639 |
|
---|
1640 | stream << "</ViewCells>" << endl;
|
---|
1641 |
|
---|
1642 | //-- load the hierarchy
|
---|
1643 | stream << "<Hierarchy>" << endl;
|
---|
1644 | mBspTree->Export(stream);
|
---|
1645 | stream << endl << "</Hierarchy>" << endl;
|
---|
1646 |
|
---|
1647 | stream << "</Visibility_Solution>" << endl;
|
---|
1648 | stream.close();
|
---|
1649 |
|
---|
1650 | cout << "finished" << endl;
|
---|
1651 |
|
---|
1652 | return true;
|
---|
1653 | }
|
---|
1654 |
|
---|
1655 |
|
---|
1656 | void BspViewCellsManager::AddCurrentViewCellsToHierarchy()
|
---|
1657 | {
|
---|
1658 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
1659 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
1660 | {
|
---|
1661 | ViewCell *vc = *it;
|
---|
1662 | ViewCellContainer leaves;
|
---|
1663 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
1664 |
|
---|
1665 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
1666 |
|
---|
1667 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
1668 | {
|
---|
1669 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(*lit);
|
---|
1670 | bspVc->mLeaf->SetViewCell(vc);
|
---|
1671 | }
|
---|
1672 | }
|
---|
1673 | }
|
---|
1674 |
|
---|
1675 |
|
---|
1676 | void BspViewCellsManager::CreateMergeHierarchy()
|
---|
1677 | {
|
---|
1678 | TraversalQueue tQueue;
|
---|
1679 |
|
---|
1680 | tQueue.push(TraversalData(mBspTree->GetRoot(), NULL));
|
---|
1681 |
|
---|
1682 | while (!tQueue.empty())
|
---|
1683 | {
|
---|
1684 | TraversalData tData = tQueue.top();
|
---|
1685 | tQueue.pop();
|
---|
1686 |
|
---|
1687 | if (tData.mNode->IsLeaf())
|
---|
1688 | {
|
---|
1689 | ViewCell *viewCell = dynamic_cast<BspLeaf *>(tData.mNode)->GetViewCell();
|
---|
1690 | viewCell->SetMergeCost((float)tData.mNode->mTimeStamp);
|
---|
1691 |
|
---|
1692 | if (tData.mParentViewCell)
|
---|
1693 | {
|
---|
1694 | tData.mParentViewCell->SetupChildLink(viewCell);
|
---|
1695 | // probagate up pvs
|
---|
1696 | mViewCellsTree->PropagateUpPvs(viewCell);
|
---|
1697 | }
|
---|
1698 | }
|
---|
1699 | else
|
---|
1700 | {
|
---|
1701 | BspInterior *interior = dynamic_cast<BspInterior *>(tData.mNode);
|
---|
1702 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
1703 | viewCellInterior->SetMergeCost((float)tData.mNode->mTimeStamp);
|
---|
1704 |
|
---|
1705 |
|
---|
1706 | tQueue.push(TraversalData(interior->GetBack(), viewCellInterior));
|
---|
1707 | tQueue.push(TraversalData(interior->GetFront(), viewCellInterior));
|
---|
1708 |
|
---|
1709 | if (tData.mParentViewCell)
|
---|
1710 | tData.mParentViewCell->SetupChildLink(viewCellInterior);
|
---|
1711 | }
|
---|
1712 | }
|
---|
1713 | }
|
---|
1714 |
|
---|
1715 | /************************************************************************/
|
---|
1716 | /* KdViewCellsManager implementation */
|
---|
1717 | /************************************************************************/
|
---|
1718 |
|
---|
1719 |
|
---|
1720 |
|
---|
1721 | KdViewCellsManager::KdViewCellsManager(KdTree *kdTree):
|
---|
1722 | ViewCellsManager(), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
1723 | {
|
---|
1724 | }
|
---|
1725 |
|
---|
1726 |
|
---|
1727 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
1728 | {
|
---|
1729 | // compute view cell area / volume as subsititute for probability
|
---|
1730 | if (0)
|
---|
1731 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
1732 | else
|
---|
1733 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
1734 | }
|
---|
1735 |
|
---|
1736 |
|
---|
1737 |
|
---|
1738 |
|
---|
1739 | void KdViewCellsManager::CollectViewCells()
|
---|
1740 | {
|
---|
1741 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
1742 | }
|
---|
1743 |
|
---|
1744 |
|
---|
1745 | int KdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
1746 | const VssRayContainer &rays)
|
---|
1747 | {
|
---|
1748 | // if view cells already constructed
|
---|
1749 | if (ViewCellsConstructed())
|
---|
1750 | return 0;
|
---|
1751 |
|
---|
1752 | mKdTree->Construct();
|
---|
1753 |
|
---|
1754 | mTotalAreaValid = false;
|
---|
1755 | // create the view cells
|
---|
1756 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
1757 |
|
---|
1758 | // cast rays
|
---|
1759 | ComputeSampleContributions(rays, true, false);
|
---|
1760 |
|
---|
1761 | EvaluateViewCellsStats();
|
---|
1762 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
1763 |
|
---|
1764 | return 0;
|
---|
1765 | }
|
---|
1766 |
|
---|
1767 |
|
---|
1768 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
1769 | {
|
---|
1770 | return mKdTree->GetRoot() != NULL;
|
---|
1771 | }
|
---|
1772 |
|
---|
1773 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
1774 | const VssRayContainer &rays)
|
---|
1775 | {
|
---|
1776 | return 0;
|
---|
1777 | }
|
---|
1778 |
|
---|
1779 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
1780 | const VssRayContainer &sampleRays)
|
---|
1781 | {
|
---|
1782 | if (!ViewCellsConstructed())
|
---|
1783 | return;
|
---|
1784 |
|
---|
1785 | // using view cells instead of the kd PVS of objects
|
---|
1786 | const bool useViewCells = true;
|
---|
1787 | bool exportRays = false;
|
---|
1788 |
|
---|
1789 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
1790 | const int pvsOut = min((int)objects.size(), 10);
|
---|
1791 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
1792 |
|
---|
1793 | if (useViewCells)
|
---|
1794 | {
|
---|
1795 | const int leafOut = 10;
|
---|
1796 |
|
---|
1797 | ViewCell::NewMail();
|
---|
1798 |
|
---|
1799 | //-- some rays for output
|
---|
1800 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
1801 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
1802 |
|
---|
1803 | //-- some random view cells and rays for output
|
---|
1804 | vector<KdLeaf *> kdLeaves;
|
---|
1805 |
|
---|
1806 | for (int i = 0; i < leafOut; ++ i)
|
---|
1807 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
1808 |
|
---|
1809 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
1810 | {
|
---|
1811 | KdLeaf *leaf = kdLeaves[i];
|
---|
1812 | RayContainer vcRays;
|
---|
1813 |
|
---|
1814 | cout << "creating output for view cell " << i << " ... ";
|
---|
1815 | #if 0
|
---|
1816 | // check whether we can add the current ray to the output rays
|
---|
1817 | for (int k = 0; k < raysOut; ++ k)
|
---|
1818 | {
|
---|
1819 | Ray *ray = sampleRays[k];
|
---|
1820 |
|
---|
1821 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
1822 | {
|
---|
1823 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
1824 |
|
---|
1825 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
1826 | {
|
---|
1827 | vcRays.push_back(ray);
|
---|
1828 | }
|
---|
1829 | }
|
---|
1830 | }
|
---|
1831 | #endif
|
---|
1832 | Intersectable::NewMail();
|
---|
1833 |
|
---|
1834 | ViewCell *vc = leaf->mViewCell;
|
---|
1835 |
|
---|
1836 | //bspLeaves[j]->Mail();
|
---|
1837 | char s[64]; sprintf(s, "kd-pvs%04d.x3d", i);
|
---|
1838 |
|
---|
1839 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1840 | exporter->SetFilled();
|
---|
1841 |
|
---|
1842 | exporter->SetWireframe();
|
---|
1843 | //exporter->SetFilled();
|
---|
1844 |
|
---|
1845 | Material m;//= RandomMaterial();
|
---|
1846 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
1847 | exporter->SetForcedMaterial(m);
|
---|
1848 |
|
---|
1849 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
1850 | exporter->ExportBox(box);
|
---|
1851 |
|
---|
1852 | // export rays piercing this view cell
|
---|
1853 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
1854 |
|
---|
1855 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1856 | exporter->SetForcedMaterial(m);
|
---|
1857 |
|
---|
1858 | // exporter->SetWireframe();
|
---|
1859 | exporter->SetFilled();
|
---|
1860 |
|
---|
1861 | ObjectPvsMap::iterator it, it_end = vc->GetPvs().mEntries.end();
|
---|
1862 | // output PVS of view cell
|
---|
1863 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
1864 | {
|
---|
1865 | Intersectable *intersect = (*it).first;
|
---|
1866 | if (!intersect->Mailed())
|
---|
1867 | {
|
---|
1868 | exporter->ExportIntersectable(intersect);
|
---|
1869 | intersect->Mail();
|
---|
1870 | }
|
---|
1871 | }
|
---|
1872 |
|
---|
1873 | DEL_PTR(exporter);
|
---|
1874 | cout << "finished" << endl;
|
---|
1875 | }
|
---|
1876 |
|
---|
1877 | DEL_PTR(rays);
|
---|
1878 | }
|
---|
1879 | else // using kd PVS of objects
|
---|
1880 | {
|
---|
1881 | for (int i = 0; i < limit; ++ i)
|
---|
1882 | {
|
---|
1883 | VssRay *ray = sampleRays[i];
|
---|
1884 |
|
---|
1885 | // check whether we can add this to the rays
|
---|
1886 | for (int j = 0; j < pvsOut; j++)
|
---|
1887 | {
|
---|
1888 | if (objects[j] == ray->mTerminationObject)
|
---|
1889 | {
|
---|
1890 | rays[j].push_back(ray);
|
---|
1891 | }
|
---|
1892 | }
|
---|
1893 | }
|
---|
1894 |
|
---|
1895 | if (exportRays)
|
---|
1896 | {
|
---|
1897 | Exporter *exporter = NULL;
|
---|
1898 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
1899 | exporter->SetWireframe();
|
---|
1900 | exporter->ExportKdTree(*mKdTree);
|
---|
1901 |
|
---|
1902 | for (i=0; i < pvsOut; i++)
|
---|
1903 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
1904 |
|
---|
1905 | exporter->SetFilled();
|
---|
1906 |
|
---|
1907 | delete exporter;
|
---|
1908 | }
|
---|
1909 |
|
---|
1910 | for (int k=0; k < pvsOut; k++)
|
---|
1911 | {
|
---|
1912 | Intersectable *object = objects[k];
|
---|
1913 | char s[64];
|
---|
1914 | sprintf(s, "sample-pvs%04d.x3d", k);
|
---|
1915 |
|
---|
1916 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1917 | exporter->SetWireframe();
|
---|
1918 |
|
---|
1919 | KdPvsMap::iterator i = object->mKdPvs.mEntries.begin();
|
---|
1920 | Intersectable::NewMail();
|
---|
1921 |
|
---|
1922 | // avoid adding the object to the list
|
---|
1923 | object->Mail();
|
---|
1924 | ObjectContainer visibleObjects;
|
---|
1925 |
|
---|
1926 | for (; i != object->mKdPvs.mEntries.end(); i++)
|
---|
1927 | {
|
---|
1928 | KdNode *node = (*i).first;
|
---|
1929 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
1930 |
|
---|
1931 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
1932 | }
|
---|
1933 |
|
---|
1934 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
1935 | exporter->SetFilled();
|
---|
1936 |
|
---|
1937 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
1938 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
1939 |
|
---|
1940 | Material m;
|
---|
1941 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1942 | exporter->SetForcedMaterial(m);
|
---|
1943 | exporter->ExportIntersectable(object);
|
---|
1944 |
|
---|
1945 | delete exporter;
|
---|
1946 | }
|
---|
1947 | }
|
---|
1948 | }
|
---|
1949 |
|
---|
1950 |
|
---|
1951 | void KdViewCellsManager::ExportColor(Exporter *exporter,
|
---|
1952 | ViewCell *vc) const
|
---|
1953 | {
|
---|
1954 | // TODO
|
---|
1955 | }
|
---|
1956 |
|
---|
1957 | ViewCell *KdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
1958 | {
|
---|
1959 | return new KdViewCell(mesh);
|
---|
1960 | }
|
---|
1961 |
|
---|
1962 |
|
---|
1963 | void KdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
1964 | ViewCell *vc,
|
---|
1965 | const Plane3 *cuttingPlane) const
|
---|
1966 | {
|
---|
1967 | ViewCellContainer leaves;
|
---|
1968 |
|
---|
1969 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
1970 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
1971 |
|
---|
1972 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
1973 | {
|
---|
1974 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(*it);
|
---|
1975 |
|
---|
1976 | exporter->ExportBox(mKdTree->GetBox(kdVc->mLeaf));
|
---|
1977 | }
|
---|
1978 | }
|
---|
1979 |
|
---|
1980 |
|
---|
1981 | int KdViewCellsManager::GetType() const
|
---|
1982 | {
|
---|
1983 | return ViewCellsManager::KD;
|
---|
1984 | }
|
---|
1985 |
|
---|
1986 |
|
---|
1987 |
|
---|
1988 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
1989 | {
|
---|
1990 | KdNode *node = leaf;
|
---|
1991 |
|
---|
1992 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
1993 | node = node->mParent;
|
---|
1994 | return node;
|
---|
1995 | }
|
---|
1996 |
|
---|
1997 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
1998 | const Vector3 &termination,
|
---|
1999 | ViewCellContainer &viewcells)
|
---|
2000 | {
|
---|
2001 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
2002 | }
|
---|
2003 |
|
---|
2004 |
|
---|
2005 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
2006 | {
|
---|
2007 | // TODO
|
---|
2008 | }
|
---|
2009 |
|
---|
2010 |
|
---|
2011 |
|
---|
2012 | void KdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
2013 | vector<MergeCandidate> &candidates)
|
---|
2014 | {
|
---|
2015 | // TODO
|
---|
2016 | }
|
---|
2017 |
|
---|
2018 |
|
---|
2019 | /**********************************************************************/
|
---|
2020 | /* VspKdViewCellsManager implementation */
|
---|
2021 | /**********************************************************************/
|
---|
2022 |
|
---|
2023 |
|
---|
2024 | VspKdViewCellsManager::VspKdViewCellsManager(VspKdTree *vspKdTree):
|
---|
2025 | ViewCellsManager(), mVspKdTree(vspKdTree)
|
---|
2026 | {
|
---|
2027 | environment->GetIntValue("VspKdTree.Construction.samples", mInitialSamples);
|
---|
2028 | mVspKdTree->SetViewCellsManager(this);
|
---|
2029 | }
|
---|
2030 |
|
---|
2031 | float VspKdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
2032 | {
|
---|
2033 | // compute view cell area / volume as subsititute for probability
|
---|
2034 | if (0)
|
---|
2035 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
2036 | else
|
---|
2037 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
2038 | }
|
---|
2039 |
|
---|
2040 |
|
---|
2041 |
|
---|
2042 |
|
---|
2043 | void VspKdViewCellsManager::CollectViewCells()
|
---|
2044 | {
|
---|
2045 | mVspKdTree->CollectViewCells(mViewCells);
|
---|
2046 | }
|
---|
2047 |
|
---|
2048 |
|
---|
2049 | int VspKdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
2050 | const VssRayContainer &rays)
|
---|
2051 | {
|
---|
2052 | // if view cells already constructed
|
---|
2053 | if (ViewCellsConstructed())
|
---|
2054 | return 0;
|
---|
2055 |
|
---|
2056 | VssRayContainer constructionRays;
|
---|
2057 | VssRayContainer savedRays;
|
---|
2058 |
|
---|
2059 | GetRaySets(rays,
|
---|
2060 | mInitialSamples,
|
---|
2061 | constructionRays,
|
---|
2062 | &savedRays);
|
---|
2063 |
|
---|
2064 | Debug << "constructing vsp kd tree using "
|
---|
2065 | << (int)constructionRays.size() << " samples" << endl;
|
---|
2066 |
|
---|
2067 | mVspKdTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
2068 | Debug << mVspKdTree->GetStatistics() << endl;
|
---|
2069 |
|
---|
2070 | // export leaf building blocks
|
---|
2071 | ExportLeaves(objects, rays);
|
---|
2072 |
|
---|
2073 | // finally merge kd leaf building blocks to view cells
|
---|
2074 | const int merged = mVspKdTree->MergeViewCells(rays);
|
---|
2075 |
|
---|
2076 | // collapse siblings belonging to the same view cell
|
---|
2077 | mVspKdTree->RefineViewCells(rays);
|
---|
2078 |
|
---|
2079 | // collapse siblings belonging to the same view cell
|
---|
2080 | mVspKdTree->CollapseTree();
|
---|
2081 |
|
---|
2082 | // evaluale view cell stats
|
---|
2083 | ResetViewCells();
|
---|
2084 |
|
---|
2085 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
2086 |
|
---|
2087 | long startTime = GetTime();
|
---|
2088 | // recast rest of rays
|
---|
2089 | ComputeSampleContributions(savedRays, true, false);
|
---|
2090 |
|
---|
2091 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
2092 | << " secs" << endl;
|
---|
2093 |
|
---|
2094 | return merged;
|
---|
2095 | }
|
---|
2096 |
|
---|
2097 | bool VspKdViewCellsManager::ViewCellsConstructed() const
|
---|
2098 | {
|
---|
2099 | return mVspKdTree->GetRoot() != NULL;
|
---|
2100 | }
|
---|
2101 |
|
---|
2102 |
|
---|
2103 | ViewCell *VspKdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
2104 | {
|
---|
2105 | return new VspKdViewCell(mesh);
|
---|
2106 | }
|
---|
2107 |
|
---|
2108 | int VspKdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
2109 | const VssRayContainer &rays)
|
---|
2110 | {
|
---|
2111 | if (!ViewCellsConstructed())
|
---|
2112 | return 0;
|
---|
2113 |
|
---|
2114 | // recalculate stats
|
---|
2115 | EvaluateViewCellsStats();
|
---|
2116 |
|
---|
2117 | return 0;
|
---|
2118 | }
|
---|
2119 |
|
---|
2120 |
|
---|
2121 | void VspKdViewCellsManager::ExportLeaves(const ObjectContainer &objects,
|
---|
2122 | const VssRayContainer &sampleRays)
|
---|
2123 | {
|
---|
2124 | if (!ViewCellsConstructed())
|
---|
2125 | return;
|
---|
2126 |
|
---|
2127 | //-- export leaf building blocks
|
---|
2128 | Exporter *exporter = Exporter::GetExporter("vspkdtree.x3d");
|
---|
2129 | if (!exporter)
|
---|
2130 | return;
|
---|
2131 |
|
---|
2132 | if (mExportGeometry)
|
---|
2133 | exporter->ExportGeometry(objects);
|
---|
2134 |
|
---|
2135 | //exporter->SetWireframe();
|
---|
2136 | //exporter->ExportVspKdTree(*mVspKdTree, mVspKdTree->GetStatistics().maxPvsSize);
|
---|
2137 | exporter->ExportVspKdTree(*mVspKdTree);
|
---|
2138 |
|
---|
2139 | if (mExportRays)
|
---|
2140 | {
|
---|
2141 | const float prob = (float)mVisualizationSamples
|
---|
2142 | / ((float)sampleRays.size() + Limits::Small);
|
---|
2143 |
|
---|
2144 | exporter->SetWireframe();
|
---|
2145 |
|
---|
2146 | //-- collect uniformly distributed rays
|
---|
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 | void VspKdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
2161 | const VssRayContainer &sampleRays)
|
---|
2162 | {
|
---|
2163 | if (!ViewCellsConstructed())
|
---|
2164 | return;
|
---|
2165 |
|
---|
2166 | //-- export single view cells
|
---|
2167 | for (int i = 0; i < 10; ++ i)
|
---|
2168 | {
|
---|
2169 | char s[64];
|
---|
2170 | sprintf(s, "vsp_viewcell%04d.x3d", i);
|
---|
2171 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
2172 | const int idx =
|
---|
2173 | (int)RandomValue(0.0, (Real)((int)mViewCells.size() - 1));
|
---|
2174 |
|
---|
2175 | VspKdViewCell *vc = dynamic_cast<VspKdViewCell *>(mViewCells[idx]);
|
---|
2176 |
|
---|
2177 | //-- export geometry
|
---|
2178 | Material m;
|
---|
2179 | m.mDiffuseColor = RgbColor(0, 1, 1);
|
---|
2180 |
|
---|
2181 | exporter->SetForcedMaterial(m);
|
---|
2182 | exporter->SetWireframe();
|
---|
2183 |
|
---|
2184 | ExportViewCellGeometry(exporter, vc);
|
---|
2185 |
|
---|
2186 | //-- export stored rays
|
---|
2187 |
|
---|
2188 | if (mExportRays)
|
---|
2189 | {
|
---|
2190 | ViewCellContainer leaves;
|
---|
2191 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
2192 |
|
---|
2193 | ViewCellContainer::const_iterator it,
|
---|
2194 | it_end = leaves.end();
|
---|
2195 |
|
---|
2196 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
2197 | {
|
---|
2198 | VspKdViewCell *vspKdVc = dynamic_cast<VspKdViewCell *>(*it);
|
---|
2199 | VspKdLeaf *leaf = vspKdVc->mLeaf;
|
---|
2200 | AxisAlignedBox3 box = mVspKdTree->GetBBox(leaf);
|
---|
2201 |
|
---|
2202 | VssRayContainer vssRays;
|
---|
2203 |
|
---|
2204 | VssRayContainer castRays;
|
---|
2205 | VssRayContainer initRays;
|
---|
2206 |
|
---|
2207 | leaf->GetRays(vssRays);
|
---|
2208 |
|
---|
2209 | VssRayContainer::const_iterator it, it_end = vssRays.end();
|
---|
2210 | const float prop = 200.0f / (float)vssRays.size();
|
---|
2211 |
|
---|
2212 | for (it = vssRays.begin(); it != it_end; ++ it)
|
---|
2213 | {
|
---|
2214 | if (Random(1) < prop)
|
---|
2215 | if ((*it)->mTerminationObject == NULL)
|
---|
2216 | castRays.push_back(*it);
|
---|
2217 | else
|
---|
2218 | initRays.push_back(*it);
|
---|
2219 | }
|
---|
2220 |
|
---|
2221 | exporter->ExportRays(castRays, RgbColor(1, 0, 0));
|
---|
2222 | exporter->ExportRays(initRays, RgbColor(0, 1, 0));
|
---|
2223 | }
|
---|
2224 | }
|
---|
2225 |
|
---|
2226 | //-- output PVS of view cell
|
---|
2227 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
2228 | exporter->SetForcedMaterial(m);
|
---|
2229 |
|
---|
2230 | Intersectable::NewMail();
|
---|
2231 |
|
---|
2232 | ObjectPvsMap::const_iterator it,
|
---|
2233 | it_end = vc->GetPvs().mEntries.end();
|
---|
2234 |
|
---|
2235 | exporter->SetFilled();
|
---|
2236 |
|
---|
2237 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
2238 | {
|
---|
2239 | Intersectable *intersect = (*it).first;
|
---|
2240 |
|
---|
2241 | if (!intersect->Mailed())
|
---|
2242 | {
|
---|
2243 | Material m = RandomMaterial();
|
---|
2244 | exporter->SetForcedMaterial(m);
|
---|
2245 |
|
---|
2246 | exporter->ExportIntersectable(intersect);
|
---|
2247 | intersect->Mail();
|
---|
2248 | }
|
---|
2249 | }
|
---|
2250 |
|
---|
2251 | delete exporter;
|
---|
2252 | }
|
---|
2253 |
|
---|
2254 | //-- export final view cells
|
---|
2255 | Exporter *exporter = Exporter::GetExporter("vspkdtree_merged.x3d");
|
---|
2256 |
|
---|
2257 | //if (exportGeometry) exporter->SetWireframe();
|
---|
2258 | //else exporter->SetFilled();
|
---|
2259 |
|
---|
2260 | ExportViewCellsForViz(exporter);
|
---|
2261 |
|
---|
2262 | if (mExportGeometry)
|
---|
2263 | {
|
---|
2264 | exporter->SetFilled();
|
---|
2265 | exporter->ExportGeometry(objects);
|
---|
2266 | }
|
---|
2267 |
|
---|
2268 | if (mExportRays)
|
---|
2269 | {
|
---|
2270 | const float prob = (float)mVisualizationSamples
|
---|
2271 | / ((float)sampleRays.size() + Limits::Small);
|
---|
2272 |
|
---|
2273 | exporter->SetWireframe();
|
---|
2274 |
|
---|
2275 | VssRayContainer rays;
|
---|
2276 |
|
---|
2277 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
2278 | {
|
---|
2279 | if (RandomValue(0,1) < prob)
|
---|
2280 | rays.push_back(sampleRays[i]);
|
---|
2281 | }
|
---|
2282 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
2283 | }
|
---|
2284 |
|
---|
2285 | delete exporter;
|
---|
2286 | }
|
---|
2287 |
|
---|
2288 | int VspKdViewCellsManager::GetType() const
|
---|
2289 | {
|
---|
2290 | return VSP_KD;
|
---|
2291 | }
|
---|
2292 |
|
---|
2293 |
|
---|
2294 | int VspKdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
2295 | const Vector3 &termination,
|
---|
2296 | ViewCellContainer &viewcells)
|
---|
2297 | {
|
---|
2298 | return mVspKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
2299 | }
|
---|
2300 |
|
---|
2301 |
|
---|
2302 | void VspKdViewCellsManager::ExportColor(Exporter *exporter,
|
---|
2303 | ViewCell *vc) const
|
---|
2304 | {
|
---|
2305 | if (mColorCode == 0) // Random color
|
---|
2306 | return;
|
---|
2307 |
|
---|
2308 | float importance = 0;
|
---|
2309 |
|
---|
2310 | switch (mColorCode)
|
---|
2311 | {
|
---|
2312 | case 1: // pvs
|
---|
2313 | {
|
---|
2314 | importance = (float)vc->GetPvs().GetSize() /
|
---|
2315 | (float)mViewCellsStats.maxPvs;
|
---|
2316 | }
|
---|
2317 | break;
|
---|
2318 | case 2: // merged leaves
|
---|
2319 | {
|
---|
2320 | int lSize = mViewCellsTree->GetSize(vc);
|
---|
2321 | importance = (float)lSize /
|
---|
2322 | (float)mViewCellsStats.maxLeaves;
|
---|
2323 | }
|
---|
2324 | break;
|
---|
2325 | case 3: // merged tree depth difference
|
---|
2326 | {
|
---|
2327 | //importance = (float)GetMaxTreeDiff(vc) /
|
---|
2328 | // (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
2329 | }
|
---|
2330 | break;
|
---|
2331 | default:
|
---|
2332 | break;
|
---|
2333 | }
|
---|
2334 |
|
---|
2335 | Material m;
|
---|
2336 | m.mDiffuseColor.b = 1.0f;
|
---|
2337 | m.mDiffuseColor.r = importance;
|
---|
2338 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
2339 | //Debug << "importance: " << importance << endl;
|
---|
2340 | exporter->SetForcedMaterial(m);
|
---|
2341 | }
|
---|
2342 |
|
---|
2343 |
|
---|
2344 | void VspKdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
2345 | ViewCell *vc,
|
---|
2346 | const Plane3 *cuttingPlane) const
|
---|
2347 | {
|
---|
2348 | VspKdViewCell *kdVc = dynamic_cast<VspKdViewCell *>(vc);
|
---|
2349 |
|
---|
2350 | Mesh m;
|
---|
2351 |
|
---|
2352 | ViewCellContainer leaves;
|
---|
2353 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
2354 |
|
---|
2355 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
2356 |
|
---|
2357 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
2358 | {
|
---|
2359 | VspKdLeaf *l = dynamic_cast<VspKdViewCell *>(*it)->mLeaf;
|
---|
2360 | mVspKdTree->GetBBox(l).AddBoxToMesh(&m);
|
---|
2361 | }
|
---|
2362 |
|
---|
2363 | exporter->ExportMesh(&m);
|
---|
2364 | }
|
---|
2365 |
|
---|
2366 |
|
---|
2367 | void VspKdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
2368 | {
|
---|
2369 | //TODO
|
---|
2370 | }
|
---|
2371 |
|
---|
2372 |
|
---|
2373 | void VspKdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
2374 | vector<MergeCandidate> &candidates)
|
---|
2375 | {
|
---|
2376 | // TODO
|
---|
2377 | }
|
---|
2378 |
|
---|
2379 |
|
---|
2380 | /**************************************************************************/
|
---|
2381 | /* VspBspViewCellsManager implementation */
|
---|
2382 | /**************************************************************************/
|
---|
2383 |
|
---|
2384 |
|
---|
2385 | VspBspViewCellsManager::VspBspViewCellsManager(VspBspTree *vspBspTree):
|
---|
2386 | ViewCellsManager(), mVspBspTree(vspBspTree)
|
---|
2387 | {
|
---|
2388 | environment->GetIntValue("VspBspTree.Construction.samples", mInitialSamples);
|
---|
2389 | mVspBspTree->SetViewCellsManager(this);
|
---|
2390 | mVspBspTree->mViewCellsTree = mViewCellsTree;
|
---|
2391 | }
|
---|
2392 |
|
---|
2393 |
|
---|
2394 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
2395 | {
|
---|
2396 | }
|
---|
2397 |
|
---|
2398 |
|
---|
2399 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
2400 | {
|
---|
2401 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
2402 | return GetArea(viewCell) / GetAccVcArea();
|
---|
2403 | else
|
---|
2404 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
2405 | }
|
---|
2406 |
|
---|
2407 |
|
---|
2408 | void VspBspViewCellsManager::CollectViewCells()
|
---|
2409 | {
|
---|
2410 | // view cells tree constructed
|
---|
2411 | if (!ViewCellsTreeConstructed())
|
---|
2412 | {
|
---|
2413 | mVspBspTree->CollectViewCells(mViewCells, false);
|
---|
2414 | }
|
---|
2415 | else
|
---|
2416 | {
|
---|
2417 | // we can use the view cells tree hierarchy to get the right set
|
---|
2418 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
2419 | }
|
---|
2420 |
|
---|
2421 | }
|
---|
2422 |
|
---|
2423 |
|
---|
2424 |
|
---|
2425 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
2426 | {
|
---|
2427 | return mVspBspTree->GetRoot() != NULL;
|
---|
2428 | }
|
---|
2429 |
|
---|
2430 |
|
---|
2431 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
2432 | {
|
---|
2433 | return new BspViewCell(mesh);
|
---|
2434 | }
|
---|
2435 |
|
---|
2436 |
|
---|
2437 | /*void VspBspViewCellsManager::CollectNodes(ViewCell *vc, vector<BspNode *>nodes)
|
---|
2438 | {
|
---|
2439 | void ViewCellsTree::CollectLeaves(ViewCell *vc, vector<BspNode *> &nodes) const
|
---|
2440 |
|
---|
2441 | if (vc->IsLeaf())
|
---|
2442 | {
|
---|
2443 | BspViewCell *bvc = dynamic_cast<BspViewCell *>(vc);
|
---|
2444 | nodes->push_back(bvc->mLeaf);
|
---|
2445 | }
|
---|
2446 | else
|
---|
2447 | {
|
---|
2448 | ViewCellContainer::const_iterator it, it_end = interior->mChildren.end();
|
---|
2449 |
|
---|
2450 | for (it = interior->mChildren.begin; it != it_end; ++ it)
|
---|
2451 | {
|
---|
2452 | vector<BspNode *> mynodes;
|
---|
2453 | CollectNodes(*it, mynodes);
|
---|
2454 |
|
---|
2455 | if (mynodes[0]->GetParent() && (mynodes[0]->GetParent() == mynodes[1]->GetParent()))
|
---|
2456 | {
|
---|
2457 | nodes.push_back(nodes[0]->GetParent());
|
---|
2458 | }
|
---|
2459 |
|
---|
2460 | }
|
---|
2461 | }
|
---|
2462 | }*/
|
---|
2463 |
|
---|
2464 |
|
---|
2465 | int VspBspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
2466 | const VssRayContainer &rays)
|
---|
2467 | {
|
---|
2468 | // if view cells were already constructed
|
---|
2469 | if (ViewCellsConstructed())
|
---|
2470 | return 0;
|
---|
2471 |
|
---|
2472 | Debug << "Constructing bsp view cells" << endl;
|
---|
2473 |
|
---|
2474 | int sampleContributions = 0;
|
---|
2475 |
|
---|
2476 | VssRayContainer sampleRays;
|
---|
2477 |
|
---|
2478 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
2479 |
|
---|
2480 | VssRayContainer constructionRays;
|
---|
2481 | VssRayContainer savedRays;
|
---|
2482 |
|
---|
2483 | Debug << "samples used for subdivision: " << mInitialSamples
|
---|
2484 | << " rays: " << (int)rays.size() << endl;
|
---|
2485 |
|
---|
2486 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
2487 |
|
---|
2488 | Debug << "initial rays: " << (int)constructionRays.size() << endl;
|
---|
2489 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
2490 |
|
---|
2491 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
2492 |
|
---|
2493 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
2494 |
|
---|
2495 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
2496 |
|
---|
2497 | // collapse invalid regions
|
---|
2498 | cout << "collapsing invalid tree regions ... ";
|
---|
2499 | long startTime = GetTime();
|
---|
2500 | int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
2501 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
2502 | << " seconds" << endl;
|
---|
2503 |
|
---|
2504 | cout << "finished" << endl;
|
---|
2505 |
|
---|
2506 | cout << "reseting view cell stats ... ";
|
---|
2507 | ResetViewCells();
|
---|
2508 | cout << "finished" << endl;
|
---|
2509 |
|
---|
2510 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
2511 |
|
---|
2512 | if (0) // export initial view cells
|
---|
2513 | {
|
---|
2514 | cout << "exporting initial view cells (=leaves) ... ";
|
---|
2515 | Exporter *exporter = Exporter::GetExporter("view_cells.x3d");
|
---|
2516 |
|
---|
2517 | if (exporter)
|
---|
2518 | {
|
---|
2519 | if (0 && mExportRays)
|
---|
2520 | exporter->ExportRays(rays, RgbColor(1, 1, 1));
|
---|
2521 |
|
---|
2522 | if (mExportGeometry)
|
---|
2523 | exporter->ExportGeometry(objects);
|
---|
2524 |
|
---|
2525 | //exporter->SetWireframe();
|
---|
2526 | exporter->SetFilled();
|
---|
2527 | ExportViewCellsForViz(exporter);
|
---|
2528 |
|
---|
2529 | delete exporter;
|
---|
2530 | }
|
---|
2531 | cout << "finished" << endl;
|
---|
2532 | }
|
---|
2533 |
|
---|
2534 | startTime = GetTime();
|
---|
2535 |
|
---|
2536 | // reset view cells and stats
|
---|
2537 | ResetViewCells();
|
---|
2538 |
|
---|
2539 | cout << "Computing remaining ray contributions ... ";
|
---|
2540 |
|
---|
2541 | // recast rest of rays
|
---|
2542 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
2543 | ComputeSampleContributions(savedRays, true, false);
|
---|
2544 | cout << "finished" << endl;
|
---|
2545 |
|
---|
2546 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
2547 | << " secs" << endl;
|
---|
2548 |
|
---|
2549 | cout << "construction finished" << endl;
|
---|
2550 |
|
---|
2551 | return sampleContributions;
|
---|
2552 | }
|
---|
2553 |
|
---|
2554 |
|
---|
2555 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
2556 | const ObjectContainer &objects)
|
---|
2557 | {
|
---|
2558 | //-- post processing of bsp view cells
|
---|
2559 | int vcSize = 0;
|
---|
2560 | int pvsSize = 0;
|
---|
2561 |
|
---|
2562 | mRenderer->RenderScene();
|
---|
2563 | SimulationStatistics ss;
|
---|
2564 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
2565 | Debug << ss << endl;
|
---|
2566 |
|
---|
2567 | //-- merge or subdivide view cells
|
---|
2568 | int merged = 0;
|
---|
2569 | if (mMergeViewCells)
|
---|
2570 | {
|
---|
2571 | cout << "starting merge using " << mPostProcessSamples << " samples ... " << endl;
|
---|
2572 | long startTime = GetTime();
|
---|
2573 |
|
---|
2574 |
|
---|
2575 | // TODO: should be done BEFORE the ray casting
|
---|
2576 | merged = mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
2577 |
|
---|
2578 | //-- stats and visualizations
|
---|
2579 | cout << "finished merging" << endl;
|
---|
2580 | cout << "merged " << merged << " view cells in "
|
---|
2581 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
2582 |
|
---|
2583 | Debug << "Postprocessing: Merged " << merged << " view cells in "
|
---|
2584 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
2585 | }
|
---|
2586 |
|
---|
2587 | int savedColorCode = mColorCode;
|
---|
2588 |
|
---|
2589 | //BspLeaf::NewMail();
|
---|
2590 | if (0) // export merged view cells
|
---|
2591 | {
|
---|
2592 | mColorCode = 0;
|
---|
2593 | cout << "reseting view cells ... ";
|
---|
2594 | ResetViewCells();
|
---|
2595 |
|
---|
2596 | cout << "finished" << endl;
|
---|
2597 |
|
---|
2598 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.x3d");
|
---|
2599 | Debug << "\nView cells after merge:\n" << mViewCellsStats << endl;
|
---|
2600 |
|
---|
2601 | cout << "exporting view cells after merge ... ";
|
---|
2602 |
|
---|
2603 | if (exporter)
|
---|
2604 | {
|
---|
2605 | if (0)
|
---|
2606 | exporter->SetWireframe();
|
---|
2607 | else
|
---|
2608 | exporter->SetFilled();
|
---|
2609 |
|
---|
2610 | ExportViewCellsForViz(exporter);
|
---|
2611 |
|
---|
2612 | if (mExportGeometry)
|
---|
2613 | {
|
---|
2614 | Material m;
|
---|
2615 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
2616 | exporter->SetForcedMaterial(m);
|
---|
2617 | exporter->SetFilled();
|
---|
2618 |
|
---|
2619 | exporter->ExportGeometry(objects);
|
---|
2620 | }
|
---|
2621 |
|
---|
2622 | delete exporter;
|
---|
2623 | }
|
---|
2624 | cout << "finished" << endl;
|
---|
2625 | }
|
---|
2626 |
|
---|
2627 | if (0) // export merged view cells using pvs coding
|
---|
2628 | {
|
---|
2629 | mColorCode = 1;
|
---|
2630 |
|
---|
2631 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.x3d");
|
---|
2632 |
|
---|
2633 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
2634 |
|
---|
2635 | if (exporter)
|
---|
2636 | {
|
---|
2637 | if (0)
|
---|
2638 | exporter->SetWireframe();
|
---|
2639 | else
|
---|
2640 | exporter->SetFilled();
|
---|
2641 |
|
---|
2642 | ExportViewCellsForViz(exporter);
|
---|
2643 |
|
---|
2644 | if (mExportGeometry)
|
---|
2645 | {
|
---|
2646 | Material m;
|
---|
2647 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
2648 | exporter->SetForcedMaterial(m);
|
---|
2649 | exporter->SetFilled();
|
---|
2650 |
|
---|
2651 | exporter->ExportGeometry(objects);
|
---|
2652 | }
|
---|
2653 |
|
---|
2654 | delete exporter;
|
---|
2655 | }
|
---|
2656 | cout << "finished" << endl;
|
---|
2657 | }
|
---|
2658 |
|
---|
2659 | mColorCode = savedColorCode;
|
---|
2660 |
|
---|
2661 | }
|
---|
2662 |
|
---|
2663 |
|
---|
2664 | bool VspBspViewCellsManager::EqualToSpatialNode(ViewCell *viewCell) const
|
---|
2665 | {
|
---|
2666 | return GetSpatialNode(viewCell) != NULL;
|
---|
2667 | }
|
---|
2668 |
|
---|
2669 |
|
---|
2670 | BspNode *VspBspViewCellsManager::GetSpatialNode(ViewCell *viewCell) const
|
---|
2671 | {
|
---|
2672 | if (!viewCell->IsLeaf())
|
---|
2673 | {
|
---|
2674 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(viewCell);
|
---|
2675 |
|
---|
2676 | return bspVc->mLeaf;
|
---|
2677 | }
|
---|
2678 | else
|
---|
2679 | {
|
---|
2680 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(viewCell);
|
---|
2681 |
|
---|
2682 | // cannot be node of binary tree
|
---|
2683 | if (interior->mChildren.size() != 2)
|
---|
2684 | return NULL;
|
---|
2685 |
|
---|
2686 | ViewCell *left = interior->mChildren[0];
|
---|
2687 | ViewCell *right = interior->mChildren[1];
|
---|
2688 |
|
---|
2689 | BspNode *leftNode = GetSpatialNode(left);
|
---|
2690 | BspNode *rightNode = GetSpatialNode(right);
|
---|
2691 |
|
---|
2692 | if (leftNode && rightNode && leftNode->IsSibling(rightNode))
|
---|
2693 | {
|
---|
2694 | return leftNode->GetParent();
|
---|
2695 | }
|
---|
2696 | }
|
---|
2697 |
|
---|
2698 | return NULL;
|
---|
2699 | }
|
---|
2700 |
|
---|
2701 |
|
---|
2702 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays,
|
---|
2703 | const ObjectContainer &objects)
|
---|
2704 | {
|
---|
2705 | Debug << "render time before refine:" << endl;
|
---|
2706 | mRenderer->RenderScene();
|
---|
2707 | SimulationStatistics ss;
|
---|
2708 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
2709 | Debug << ss << endl;
|
---|
2710 |
|
---|
2711 | cout << "Refining the merged view cells ... ";
|
---|
2712 | long startTime = GetTime();
|
---|
2713 |
|
---|
2714 | // refining the merged view cells
|
---|
2715 | const int refined = mViewCellsTree->RefineViewCells(rays, objects);
|
---|
2716 |
|
---|
2717 | //-- stats and visualizations
|
---|
2718 | cout << "finished" << endl;
|
---|
2719 | cout << "refined " << refined << " view cells in "
|
---|
2720 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
2721 |
|
---|
2722 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
2723 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
2724 | }
|
---|
2725 |
|
---|
2726 |
|
---|
2727 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
2728 | const VssRayContainer &rays)
|
---|
2729 | {
|
---|
2730 | if (!ViewCellsConstructed())
|
---|
2731 | {
|
---|
2732 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
2733 | return 0;
|
---|
2734 | }
|
---|
2735 |
|
---|
2736 |
|
---|
2737 | // view cells already finished before post processing step
|
---|
2738 | // (i.e. because they were loaded)
|
---|
2739 | if (mViewCellsFinished)
|
---|
2740 | {
|
---|
2741 | FinalizeViewCells(true);
|
---|
2742 | EvaluateViewCellsStats();
|
---|
2743 |
|
---|
2744 | return 0;
|
---|
2745 | }
|
---|
2746 |
|
---|
2747 |
|
---|
2748 | // check if new view cells turned invalid
|
---|
2749 | SetValidity(mMinPvsSize, mMaxPvsSize);
|
---|
2750 | // update valid view space according to valid view cells
|
---|
2751 | mVspBspTree->ValidateTree();
|
---|
2752 |
|
---|
2753 | // recompute view cell statistics
|
---|
2754 | mViewCellsStats.Reset();
|
---|
2755 | EvaluateViewCellsStats();
|
---|
2756 |
|
---|
2757 | // has to be recomputed
|
---|
2758 | mTotalAreaValid = false;
|
---|
2759 |
|
---|
2760 |
|
---|
2761 | VssRayContainer postProcessRays;
|
---|
2762 |
|
---|
2763 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
2764 |
|
---|
2765 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
2766 |
|
---|
2767 | Debug << "\nview cell partition after sampling:\n" << mViewCellsStats << endl << endl;
|
---|
2768 |
|
---|
2769 | // should maybe be done here to allow merge working with area or volume
|
---|
2770 | // and to correct the rendering statistics
|
---|
2771 | if (0)
|
---|
2772 | {
|
---|
2773 | FinalizeViewCells(false);
|
---|
2774 | }
|
---|
2775 |
|
---|
2776 | //-- merge the individual view cells
|
---|
2777 | MergeViewCells(postProcessRays, objects);
|
---|
2778 |
|
---|
2779 |
|
---|
2780 | //-- refines the merged view cells
|
---|
2781 | if (0)
|
---|
2782 | RefineViewCells(postProcessRays, objects);
|
---|
2783 |
|
---|
2784 | //-- render simulation after merge
|
---|
2785 | cout << "\nevaluating bsp view cells render time before compress ... ";
|
---|
2786 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
2787 | SimulationStatistics ss;
|
---|
2788 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
2789 |
|
---|
2790 |
|
---|
2791 | cout << " finished" << endl;
|
---|
2792 | cout << ss << endl;
|
---|
2793 | Debug << ss << endl;
|
---|
2794 |
|
---|
2795 |
|
---|
2796 |
|
---|
2797 | //-- compression
|
---|
2798 |
|
---|
2799 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
2800 | {
|
---|
2801 | int pvsEntries = mViewCellsTree->GetNumPvsEntries(mViewCellsTree->GetRoot());
|
---|
2802 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
2803 |
|
---|
2804 | mViewCellsTree->CompressViewCellsPvs();
|
---|
2805 |
|
---|
2806 | pvsEntries = mViewCellsTree->GetNumPvsEntries(mViewCellsTree->GetRoot());
|
---|
2807 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
2808 | }
|
---|
2809 |
|
---|
2810 | // collapse sibling leaves that share the same view cell
|
---|
2811 | if (0)
|
---|
2812 | mVspBspTree->CollapseTree();
|
---|
2813 |
|
---|
2814 | // recompute view cell list and statistics
|
---|
2815 | ResetViewCells();
|
---|
2816 |
|
---|
2817 | // real meshes are only contructed only at this stage
|
---|
2818 | FinalizeViewCells(true);
|
---|
2819 |
|
---|
2820 | // write view cells to disc
|
---|
2821 | if (mExportViewCells)
|
---|
2822 | {
|
---|
2823 | char buff[100];
|
---|
2824 | environment->GetStringValue("ViewCells.filename", buff);
|
---|
2825 | string vcFilename(buff);
|
---|
2826 |
|
---|
2827 | ExportViewCells(buff);
|
---|
2828 | }
|
---|
2829 |
|
---|
2830 | return 0;
|
---|
2831 | }
|
---|
2832 |
|
---|
2833 |
|
---|
2834 | int VspBspViewCellsManager::GetType() const
|
---|
2835 | {
|
---|
2836 | return VSP_BSP;
|
---|
2837 | }
|
---|
2838 |
|
---|
2839 |
|
---|
2840 | void VspBspViewCellsManager::CreateMergeHierarchy()
|
---|
2841 | {
|
---|
2842 | TraversalQueue tQueue;
|
---|
2843 |
|
---|
2844 | tQueue.push(TraversalData(mVspBspTree->GetRoot(), NULL));
|
---|
2845 |
|
---|
2846 | while (!tQueue.empty())
|
---|
2847 | {
|
---|
2848 | TraversalData tData = tQueue.top();
|
---|
2849 | tQueue.pop();
|
---|
2850 |
|
---|
2851 | if (tData.mNode->IsLeaf())
|
---|
2852 | {
|
---|
2853 | ViewCell *viewCell = dynamic_cast<BspLeaf *>(tData.mNode)->GetViewCell();
|
---|
2854 |
|
---|
2855 | if (tData.mParentViewCell)
|
---|
2856 | {
|
---|
2857 | tData.mParentViewCell->SetupChildLink(viewCell);
|
---|
2858 | // probagate up pvs
|
---|
2859 | mViewCellsTree->PropagateUpPvs(viewCell);
|
---|
2860 | }
|
---|
2861 | }
|
---|
2862 | else
|
---|
2863 | {
|
---|
2864 | BspInterior *interior = dynamic_cast<BspInterior *>(tData.mNode);
|
---|
2865 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
2866 |
|
---|
2867 | tQueue.push(TraversalData(interior->GetBack(), viewCellInterior));
|
---|
2868 | tQueue.push(TraversalData(interior->GetFront(), viewCellInterior));
|
---|
2869 |
|
---|
2870 | if (tData.mParentViewCell)
|
---|
2871 | tData.mParentViewCell->SetupChildLink(viewCellInterior);
|
---|
2872 | }
|
---|
2873 | }
|
---|
2874 | }
|
---|
2875 |
|
---|
2876 |
|
---|
2877 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
2878 | {
|
---|
2879 | if (!ViewCellsConstructed())
|
---|
2880 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
2881 |
|
---|
2882 | // TODO: set reasonable limit
|
---|
2883 | const int limit = 20;
|
---|
2884 |
|
---|
2885 | for (int i = 0; i < limit; ++ i)
|
---|
2886 | {
|
---|
2887 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
2888 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
2889 | {
|
---|
2890 | return true;
|
---|
2891 | }
|
---|
2892 | }
|
---|
2893 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
2894 | return false;
|
---|
2895 | }
|
---|
2896 |
|
---|
2897 |
|
---|
2898 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
2899 | {
|
---|
2900 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
2901 | // validy update in preprocessor for all managers)
|
---|
2902 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
2903 |
|
---|
2904 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
2905 | // mVspBspTree->ViewPointValid(viewPoint);
|
---|
2906 | }
|
---|
2907 |
|
---|
2908 |
|
---|
2909 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
2910 | const VssRayContainer &sampleRays)
|
---|
2911 | {
|
---|
2912 | if (!ViewCellsConstructed())
|
---|
2913 | return;
|
---|
2914 |
|
---|
2915 | VssRayContainer visRays;
|
---|
2916 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
2917 |
|
---|
2918 |
|
---|
2919 | if (0) // export view cells
|
---|
2920 | { // hack pvs
|
---|
2921 | int savedColorCode = mColorCode;
|
---|
2922 | mColorCode = 1;
|
---|
2923 | Exporter *exporter = Exporter::GetExporter("final_view_cells.x3d");
|
---|
2924 |
|
---|
2925 | if (exporter)
|
---|
2926 | {
|
---|
2927 | cout << "exporting view cells after post process ... ";
|
---|
2928 |
|
---|
2929 | if (0)
|
---|
2930 | {
|
---|
2931 | exporter->SetWireframe();
|
---|
2932 | exporter->ExportBox(mViewSpaceBox);
|
---|
2933 | exporter->SetFilled();
|
---|
2934 | }
|
---|
2935 |
|
---|
2936 | if (mExportGeometry)
|
---|
2937 | {
|
---|
2938 | exporter->ExportGeometry(objects);
|
---|
2939 | }
|
---|
2940 |
|
---|
2941 | // export rays
|
---|
2942 | if (mExportRays)
|
---|
2943 | {
|
---|
2944 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
2945 | }
|
---|
2946 |
|
---|
2947 | ExportViewCellsForViz(exporter);
|
---|
2948 | delete exporter;
|
---|
2949 | cout << "finished" << endl;
|
---|
2950 | }
|
---|
2951 |
|
---|
2952 | mColorCode = savedColorCode;
|
---|
2953 | }
|
---|
2954 |
|
---|
2955 | if (0)
|
---|
2956 | {
|
---|
2957 | cout << "exporting depth map ... ";
|
---|
2958 |
|
---|
2959 | Exporter *exporter = Exporter::GetExporter("depth_map.x3d");
|
---|
2960 | if (exporter)
|
---|
2961 | {
|
---|
2962 | if (1)
|
---|
2963 | {
|
---|
2964 | exporter->SetWireframe();
|
---|
2965 | exporter->ExportBox(mViewSpaceBox);
|
---|
2966 | exporter->SetFilled();
|
---|
2967 | }
|
---|
2968 |
|
---|
2969 | if (mExportGeometry)
|
---|
2970 | {
|
---|
2971 | exporter->ExportGeometry(objects);
|
---|
2972 | }
|
---|
2973 |
|
---|
2974 | const int maxDepth = mVspBspTree->mBspStats.maxDepth;
|
---|
2975 |
|
---|
2976 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
2977 |
|
---|
2978 | for (vit = mViewCells.begin(); vit != mViewCells.end(); ++ vit)
|
---|
2979 | {
|
---|
2980 | ViewCell *vc = *vit;
|
---|
2981 |
|
---|
2982 | ViewCellContainer leaves;
|
---|
2983 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
2984 |
|
---|
2985 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
2986 |
|
---|
2987 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
2988 | {
|
---|
2989 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*lit)->mLeaf;
|
---|
2990 |
|
---|
2991 | Material m;
|
---|
2992 |
|
---|
2993 | float relDepth = (float)leaf->GetDepth() / (float)maxDepth;
|
---|
2994 | m.mDiffuseColor.r = relDepth;
|
---|
2995 | m.mDiffuseColor.g = 0.0f;
|
---|
2996 | m.mDiffuseColor.b = 1.0f - relDepth;
|
---|
2997 |
|
---|
2998 | exporter->SetForcedMaterial(m);
|
---|
2999 |
|
---|
3000 |
|
---|
3001 | BspNodeGeometry geom;
|
---|
3002 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
3003 | exporter->ExportPolygons(geom.mPolys);
|
---|
3004 | }
|
---|
3005 | }
|
---|
3006 |
|
---|
3007 | delete exporter;
|
---|
3008 | }
|
---|
3009 |
|
---|
3010 |
|
---|
3011 | cout << "finished" << endl;
|
---|
3012 | }
|
---|
3013 |
|
---|
3014 | //-- visualization of the BSP splits
|
---|
3015 | bool exportSplits = false;
|
---|
3016 | environment->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
3017 |
|
---|
3018 | if (exportSplits)
|
---|
3019 | {
|
---|
3020 | cout << "exporting splits ... ";
|
---|
3021 | ExportSplits(objects, visRays);
|
---|
3022 | cout << "finished" << endl;
|
---|
3023 | }
|
---|
3024 |
|
---|
3025 | //-- export single view cells
|
---|
3026 | ExportBspPvs(objects, visRays);
|
---|
3027 | }
|
---|
3028 |
|
---|
3029 |
|
---|
3030 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
3031 | const VssRayContainer &rays)
|
---|
3032 | {
|
---|
3033 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
3034 |
|
---|
3035 | if (exporter)
|
---|
3036 | {
|
---|
3037 | Material m;
|
---|
3038 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
3039 | exporter->SetForcedMaterial(m);
|
---|
3040 | exporter->SetWireframe();
|
---|
3041 |
|
---|
3042 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
3043 |
|
---|
3044 | // take forced material, else big scenes cannot be viewed
|
---|
3045 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
3046 | exporter->SetForcedMaterial(m);
|
---|
3047 | exporter->SetFilled();
|
---|
3048 |
|
---|
3049 | exporter->ResetForcedMaterial();
|
---|
3050 |
|
---|
3051 | // export rays
|
---|
3052 | if (mExportRays)
|
---|
3053 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
3054 |
|
---|
3055 | if (mExportGeometry)
|
---|
3056 | exporter->ExportGeometry(objects);
|
---|
3057 |
|
---|
3058 | delete exporter;
|
---|
3059 | }
|
---|
3060 | }
|
---|
3061 |
|
---|
3062 |
|
---|
3063 | void VspBspViewCellsManager::ExportBspPvs(const ObjectContainer &objects,
|
---|
3064 | const VssRayContainer &rays)
|
---|
3065 | {
|
---|
3066 | const int leafOut = 20;
|
---|
3067 |
|
---|
3068 | ViewCell::NewMail();
|
---|
3069 |
|
---|
3070 | cout << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
3071 | Debug << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
3072 | Debug << "\nOutput view cells: " << endl;
|
---|
3073 |
|
---|
3074 | // sort view cells to visualize the largest view cells
|
---|
3075 | if (0)
|
---|
3076 | stable_sort(mViewCells.begin(), mViewCells.end(), vc_gt);
|
---|
3077 |
|
---|
3078 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
3079 |
|
---|
3080 | int raysOut = 0;
|
---|
3081 |
|
---|
3082 | //-- some rays for output
|
---|
3083 | for (int i = 0; i < limit; ++ i)
|
---|
3084 | {
|
---|
3085 | cout << "creating output for view cell " << i << " ... ";
|
---|
3086 |
|
---|
3087 |
|
---|
3088 | ViewCell *vc;
|
---|
3089 |
|
---|
3090 | if (0) // largest view cell pvs first
|
---|
3091 | vc = mViewCells[i];
|
---|
3092 | else
|
---|
3093 | vc = mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
3094 |
|
---|
3095 | //bspLeaves[j]->Mail();
|
---|
3096 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
3097 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
3098 |
|
---|
3099 | Debug << i << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc) << endl;
|
---|
3100 |
|
---|
3101 | if (1 || mExportRays)
|
---|
3102 | {
|
---|
3103 | if (0)
|
---|
3104 | {
|
---|
3105 | VssRayContainer vcRays;
|
---|
3106 | VssRayContainer collectRays;
|
---|
3107 |
|
---|
3108 | raysOut = min((int)rays.size(), 100);
|
---|
3109 |
|
---|
3110 | // collect intial view cells
|
---|
3111 | ViewCellContainer leaves;
|
---|
3112 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
3113 |
|
---|
3114 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
3115 |
|
---|
3116 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
3117 | {
|
---|
3118 | BspLeaf *vcLeaf = dynamic_cast<BspViewCell *>(*vit)->mLeaf;
|
---|
3119 |
|
---|
3120 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
3121 |
|
---|
3122 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
3123 | {
|
---|
3124 | collectRays.push_back(*rit);
|
---|
3125 | }
|
---|
3126 | }
|
---|
3127 |
|
---|
3128 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
3129 |
|
---|
3130 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
3131 | {
|
---|
3132 | float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
3133 |
|
---|
3134 | if (p < raysOut)
|
---|
3135 | vcRays.push_back(*rit);
|
---|
3136 | }
|
---|
3137 | //-- export rays piercing this view cell
|
---|
3138 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
3139 | }
|
---|
3140 |
|
---|
3141 |
|
---|
3142 |
|
---|
3143 | if (1)
|
---|
3144 | {
|
---|
3145 | VssRayContainer vcRays;
|
---|
3146 | raysOut = min((int)rays.size(), mVisualizationSamples);
|
---|
3147 | // check whether we can add the current ray to the output rays
|
---|
3148 | for (int k = 0; k < raysOut; ++ k)
|
---|
3149 | {
|
---|
3150 | VssRay *ray = rays[k];
|
---|
3151 | for (int j = 0; j < (int)ray->mViewCells.size(); ++ j)
|
---|
3152 | {
|
---|
3153 | ViewCell *rayvc = ray->mViewCells[j];
|
---|
3154 |
|
---|
3155 | if (rayvc == vc)
|
---|
3156 | vcRays.push_back(ray);
|
---|
3157 | }
|
---|
3158 | }
|
---|
3159 |
|
---|
3160 | //-- export rays piercing this view cell
|
---|
3161 | exporter->ExportRays(vcRays, RgbColor(1, 1, 0));
|
---|
3162 | }
|
---|
3163 |
|
---|
3164 | }
|
---|
3165 |
|
---|
3166 |
|
---|
3167 |
|
---|
3168 |
|
---|
3169 | exporter->SetWireframe();
|
---|
3170 |
|
---|
3171 | Material m;//= RandomMaterial();
|
---|
3172 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
3173 | exporter->SetForcedMaterial(m);
|
---|
3174 |
|
---|
3175 | ExportViewCellGeometry(exporter, vc);
|
---|
3176 |
|
---|
3177 | exporter->SetFilled();
|
---|
3178 |
|
---|
3179 |
|
---|
3180 | if (1)
|
---|
3181 | {
|
---|
3182 | ObjectPvsMap::const_iterator oit,
|
---|
3183 | oit_end = vc->GetPvs().mEntries.end();
|
---|
3184 |
|
---|
3185 |
|
---|
3186 | exporter->SetFilled();
|
---|
3187 |
|
---|
3188 | Intersectable::NewMail();
|
---|
3189 |
|
---|
3190 | // output PVS of view cell
|
---|
3191 | for (oit = vc->GetPvs().mEntries.begin(); oit != oit_end; ++ oit)
|
---|
3192 | {
|
---|
3193 | Intersectable *intersect = (*oit).first;
|
---|
3194 |
|
---|
3195 | if (!intersect->Mailed())
|
---|
3196 | {
|
---|
3197 | m = RandomMaterial();
|
---|
3198 | exporter->SetForcedMaterial(m);
|
---|
3199 |
|
---|
3200 | exporter->ExportIntersectable(intersect);
|
---|
3201 | intersect->Mail();
|
---|
3202 | }
|
---|
3203 | }
|
---|
3204 | }
|
---|
3205 | else
|
---|
3206 | {
|
---|
3207 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
3208 | exporter->SetForcedMaterial(m);
|
---|
3209 |
|
---|
3210 | exporter->ExportGeometry(objects);
|
---|
3211 | }
|
---|
3212 |
|
---|
3213 | DEL_PTR(exporter);
|
---|
3214 | cout << "finished" << endl;
|
---|
3215 | }
|
---|
3216 |
|
---|
3217 | Debug << endl;
|
---|
3218 | }
|
---|
3219 |
|
---|
3220 |
|
---|
3221 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
3222 | const Vector3 &termination,
|
---|
3223 | ViewCellContainer &viewcells)
|
---|
3224 | {
|
---|
3225 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
3226 | }
|
---|
3227 |
|
---|
3228 |
|
---|
3229 | void VspBspViewCellsManager::ExportColor(Exporter *exporter,
|
---|
3230 | ViewCell *vc) const
|
---|
3231 | {
|
---|
3232 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
3233 |
|
---|
3234 | float importance = 0;
|
---|
3235 | static Material m;
|
---|
3236 |
|
---|
3237 | switch (mColorCode)
|
---|
3238 | {
|
---|
3239 | case 0: // Random
|
---|
3240 | {
|
---|
3241 | if (vcValid)
|
---|
3242 | {
|
---|
3243 | m.mDiffuseColor.r = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
3244 | m.mDiffuseColor.g = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
3245 | m.mDiffuseColor.b = 0.5f + RandomValue(0.f, 0.5f);
|
---|
3246 | }
|
---|
3247 | else
|
---|
3248 | {
|
---|
3249 | m.mDiffuseColor.r = 0.0f;
|
---|
3250 | m.mDiffuseColor.g = 1.0f;
|
---|
3251 | m.mDiffuseColor.b = 0.0f;
|
---|
3252 | }
|
---|
3253 |
|
---|
3254 | exporter->SetForcedMaterial(m);
|
---|
3255 | return;
|
---|
3256 | }
|
---|
3257 |
|
---|
3258 | case 1: // pvs
|
---|
3259 | {
|
---|
3260 | importance = (float)vc->GetPvs().GetSize() /
|
---|
3261 | (float)mViewCellsStats.maxPvs;
|
---|
3262 |
|
---|
3263 | }
|
---|
3264 | break;
|
---|
3265 | case 2: // merges
|
---|
3266 | {
|
---|
3267 | int lSize = mViewCellsTree->GetSize(vc);
|
---|
3268 | importance = (float)lSize / (float)mViewCellsStats.maxLeaves;
|
---|
3269 | }
|
---|
3270 | break;
|
---|
3271 | case 3: // merge tree differene
|
---|
3272 | {
|
---|
3273 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
3274 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
3275 |
|
---|
3276 | }
|
---|
3277 | break;
|
---|
3278 | default:
|
---|
3279 | break;
|
---|
3280 | }
|
---|
3281 |
|
---|
3282 | // special color code for invalid view cells
|
---|
3283 | m.mDiffuseColor.r = importance;
|
---|
3284 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
3285 | m.mDiffuseColor.b = vcValid ? 1.0f : 0.0f;
|
---|
3286 |
|
---|
3287 | //Debug << "importance: " << importance << endl;
|
---|
3288 | exporter->SetForcedMaterial(m);
|
---|
3289 | }
|
---|
3290 |
|
---|
3291 |
|
---|
3292 | void VspBspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
3293 | ViewCell *vc,
|
---|
3294 | const Plane3 *cuttingPlane) const
|
---|
3295 | {
|
---|
3296 | if (vc->GetMesh())
|
---|
3297 | {
|
---|
3298 | exporter->ExportMesh(vc->GetMesh());
|
---|
3299 |
|
---|
3300 | return;
|
---|
3301 | }
|
---|
3302 |
|
---|
3303 |
|
---|
3304 | if (cuttingPlane)
|
---|
3305 | {
|
---|
3306 | ViewCellContainer leaves;
|
---|
3307 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
3308 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
3309 |
|
---|
3310 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
3311 | {
|
---|
3312 | BspNodeGeometry geom;
|
---|
3313 |
|
---|
3314 | BspNodeGeometry front;
|
---|
3315 | BspNodeGeometry back;
|
---|
3316 |
|
---|
3317 |
|
---|
3318 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
3319 |
|
---|
3320 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
3321 |
|
---|
3322 | geom.SplitGeometry(front,
|
---|
3323 | back,
|
---|
3324 | *cuttingPlane,
|
---|
3325 | mViewSpaceBox,
|
---|
3326 | 0.0001f);
|
---|
3327 |
|
---|
3328 | if ((int)back.mPolys.size() >= 3)
|
---|
3329 | exporter->ExportPolygons(back.mPolys);
|
---|
3330 | }
|
---|
3331 | }
|
---|
3332 | else
|
---|
3333 | {
|
---|
3334 | BspNodeGeometry geom;
|
---|
3335 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
3336 |
|
---|
3337 | exporter->ExportPolygons(geom.mPolys);
|
---|
3338 | }
|
---|
3339 | }
|
---|
3340 |
|
---|
3341 |
|
---|
3342 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
3343 | {
|
---|
3344 | ViewCellContainer leaves;
|
---|
3345 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
3346 |
|
---|
3347 | int maxDist = 0;
|
---|
3348 |
|
---|
3349 | // compute max height difference
|
---|
3350 | for (int i = 0; i < (int)leaves.size(); ++ i)
|
---|
3351 | for (int j = 0; j < (int)leaves.size(); ++ j)
|
---|
3352 | {
|
---|
3353 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(leaves[i])->mLeaf;
|
---|
3354 |
|
---|
3355 | if (i != j)
|
---|
3356 | {
|
---|
3357 | BspLeaf *leaf2 =dynamic_cast<BspViewCell *>(leaves[j])->mLeaf;
|
---|
3358 | int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
3359 | if (dist > maxDist)
|
---|
3360 | maxDist = dist;
|
---|
3361 | }
|
---|
3362 | }
|
---|
3363 |
|
---|
3364 | return maxDist;
|
---|
3365 | }
|
---|
3366 |
|
---|
3367 |
|
---|
3368 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point) const
|
---|
3369 | {
|
---|
3370 | if (!mVspBspTree)
|
---|
3371 | return NULL;
|
---|
3372 |
|
---|
3373 | if (!mViewSpaceBox.IsInside(point))
|
---|
3374 | return NULL;
|
---|
3375 |
|
---|
3376 | return mVspBspTree->GetViewCell(point);
|
---|
3377 | }
|
---|
3378 |
|
---|
3379 |
|
---|
3380 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
3381 | {
|
---|
3382 | if (vc->GetMesh())
|
---|
3383 | delete vc->GetMesh();
|
---|
3384 |
|
---|
3385 |
|
---|
3386 | BspNodeGeometry geom;
|
---|
3387 |
|
---|
3388 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
3389 |
|
---|
3390 | Mesh *mesh = new Mesh();
|
---|
3391 | geom.AddToMesh(*mesh);
|
---|
3392 | vc->SetMesh(mesh);
|
---|
3393 | mMeshContainer.push_back(mesh);
|
---|
3394 | }
|
---|
3395 |
|
---|
3396 |
|
---|
3397 | ViewCellsManager *ViewCellsManager::LoadViewCells(const string filename,
|
---|
3398 | ObjectContainer *objects)
|
---|
3399 | {
|
---|
3400 | ViewCellsParser parser;
|
---|
3401 |
|
---|
3402 | ViewCellsManager *vm = NULL;
|
---|
3403 |
|
---|
3404 | if (parser.ParseFile(filename, &vm, objects))
|
---|
3405 | {
|
---|
3406 | //vm->PrepareLoadedViewCells();
|
---|
3407 | vm->ResetViewCells();
|
---|
3408 |
|
---|
3409 | vm->mViewCellsFinished = true;
|
---|
3410 | vm->mMaxPvsSize = (int)objects->size();
|
---|
3411 |
|
---|
3412 | vm->FinalizeViewCells(true);
|
---|
3413 |
|
---|
3414 | Debug << (int)vm->mViewCells.size() << " view cells loaded" << endl;
|
---|
3415 | }
|
---|
3416 | else
|
---|
3417 | {
|
---|
3418 | Debug << "failed loading view cells" << endl;
|
---|
3419 | DEL_PTR(vm);
|
---|
3420 | }
|
---|
3421 |
|
---|
3422 |
|
---|
3423 | return vm;
|
---|
3424 | }
|
---|
3425 |
|
---|
3426 |
|
---|
3427 | inline bool ilt(Intersectable *obj1, Intersectable *obj2)
|
---|
3428 | {
|
---|
3429 | return obj1->mId < obj2->mId;
|
---|
3430 | }
|
---|
3431 |
|
---|
3432 |
|
---|
3433 | bool VspBspViewCellsManager::ExportViewCells(const string filename)
|
---|
3434 | {
|
---|
3435 | cout << "exporting view cells to xml ... ";
|
---|
3436 | std::ofstream stream;
|
---|
3437 |
|
---|
3438 | // for output we need unique ids for each view cell
|
---|
3439 | CreateUniqueViewCellIds();
|
---|
3440 |
|
---|
3441 |
|
---|
3442 | stream.open(filename.c_str());
|
---|
3443 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
3444 | stream << "<Visibility_Solution>" << endl;
|
---|
3445 |
|
---|
3446 | //-- the view space bounding box
|
---|
3447 | stream << "<ViewSpaceBox"
|
---|
3448 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
3449 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
3450 |
|
---|
3451 | //-- the type of the view cells hierarchy
|
---|
3452 | stream << "<Hierarchy name=\"vspBspTree\" />" << endl;
|
---|
3453 |
|
---|
3454 | //-- load the view cells itself, i.e., the ids and the pvs
|
---|
3455 | stream << "<ViewCells>" << endl;
|
---|
3456 |
|
---|
3457 | #if 0
|
---|
3458 |
|
---|
3459 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
3460 |
|
---|
3461 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
3462 | ExportViewCell(*it, stream);
|
---|
3463 | #else
|
---|
3464 | mViewCellsTree->Export(stream);
|
---|
3465 | #endif
|
---|
3466 |
|
---|
3467 | stream << "</ViewCells>" << endl;
|
---|
3468 |
|
---|
3469 | //-- load the hierarchy
|
---|
3470 | stream << "<Hierarchy>" << endl;
|
---|
3471 | mVspBspTree->Export(stream);
|
---|
3472 | stream << endl << "</Hierarchy>" << endl;
|
---|
3473 |
|
---|
3474 | stream << "</Visibility_Solution>" << endl;
|
---|
3475 | stream.close();
|
---|
3476 |
|
---|
3477 | cout << "finished" << endl;
|
---|
3478 |
|
---|
3479 | return true;
|
---|
3480 | }
|
---|
3481 |
|
---|
3482 |
|
---|
3483 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
3484 | {
|
---|
3485 | return mVspBspTree->CastBeam(beam);
|
---|
3486 | }
|
---|
3487 |
|
---|
3488 |
|
---|
3489 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
3490 | const bool createMesh)
|
---|
3491 | {
|
---|
3492 | CreateMesh(viewCell);
|
---|
3493 |
|
---|
3494 | float area = 0;
|
---|
3495 | float volume = 0;
|
---|
3496 |
|
---|
3497 | ViewCellContainer leaves;
|
---|
3498 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
3499 |
|
---|
3500 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
3501 |
|
---|
3502 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
3503 | {
|
---|
3504 | BspNodeGeometry geom;
|
---|
3505 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
3506 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
3507 |
|
---|
3508 | area += geom.GetArea();
|
---|
3509 | volume += geom.GetVolume();
|
---|
3510 | }
|
---|
3511 |
|
---|
3512 | viewCell->SetVolume(volume);
|
---|
3513 | viewCell->SetArea(area);
|
---|
3514 | }
|
---|
3515 |
|
---|
3516 |
|
---|
3517 | void VspBspViewCellsManager::PrepareLoadedViewCells()
|
---|
3518 | {
|
---|
3519 | // TODO: do I still need this here?
|
---|
3520 | if (0)
|
---|
3521 | mVspBspTree->RepairViewCellsLeafLists();
|
---|
3522 | }
|
---|
3523 |
|
---|
3524 |
|
---|
3525 |
|
---|
3526 | void VspBspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
3527 | vector<MergeCandidate> &candidates)
|
---|
3528 | {
|
---|
3529 | cout << "collecting merge candidates ... " << endl;
|
---|
3530 |
|
---|
3531 | if (mUseRaysForMerge)
|
---|
3532 | {
|
---|
3533 | mVspBspTree->CollectMergeCandidates(rays, candidates);
|
---|
3534 | }
|
---|
3535 | else
|
---|
3536 | {
|
---|
3537 | vector<BspLeaf *> leaves;
|
---|
3538 | mVspBspTree->CollectLeaves(leaves);
|
---|
3539 | mVspBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
3540 | }
|
---|
3541 |
|
---|
3542 | cout << "fininshed collecting candidates" << endl;
|
---|
3543 | }
|
---|
3544 |
|
---|
3545 |
|
---|
3546 | void VspBspViewCellsManager::AddCurrentViewCellsToHierarchy()
|
---|
3547 | {
|
---|
3548 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
3549 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
3550 | {
|
---|
3551 | }
|
---|
3552 | }
|
---|
3553 |
|
---|
3554 | //////////////////////////////////
|
---|
3555 | ViewCellsManager *ViewCellsManagerFactory::Create(const string mName)
|
---|
3556 | {
|
---|
3557 | //TODO
|
---|
3558 | return NULL;// new VspBspViewCellsManager();
|
---|
3559 | }
|
---|
3560 |
|
---|