1 | #include "ViewCellsManager.h"
|
---|
2 | #include "RenderSimulator.h"
|
---|
3 | #include "Mesh.h"
|
---|
4 | #include "Triangle3.h"
|
---|
5 | #include "ViewCell.h"
|
---|
6 | #include "Environment.h"
|
---|
7 | #include "X3dParser.h"
|
---|
8 | #include "ViewCellBsp.h"
|
---|
9 | #include "KdTree.h"
|
---|
10 | #include "VspKdTree.h"
|
---|
11 | #include "Exporter.h"
|
---|
12 | #include "VspBspTree.h"
|
---|
13 | #include "ViewCellsParser.h"
|
---|
14 | #include "Beam.h"
|
---|
15 | #include "VssPreprocessor.h"
|
---|
16 | #include "RssPreprocessor.h"
|
---|
17 |
|
---|
18 |
|
---|
19 |
|
---|
20 | ViewCellsManager::ViewCellsManager():
|
---|
21 | mRenderer(NULL),
|
---|
22 | mConstructionSamples(0),
|
---|
23 | mPostProcessSamples(0),
|
---|
24 | mVisualizationSamples(0),
|
---|
25 | mTotalAreaValid(false),
|
---|
26 | mTotalArea(0.0f),
|
---|
27 | mViewCellsFinished(false),
|
---|
28 | mMaxPvsSize(9999999),
|
---|
29 | mMinPvsSize(1), // only empty view cells are invalid
|
---|
30 | mMaxPvsRatio(1.0)
|
---|
31 | {
|
---|
32 | mViewSpaceBox.Initialize();
|
---|
33 | ParseEnvironment();
|
---|
34 | }
|
---|
35 |
|
---|
36 |
|
---|
37 | ViewCellsManager::ViewCellsManager(int constructionSamples):
|
---|
38 | mConstructionSamples(constructionSamples),
|
---|
39 | mRenderer(NULL),
|
---|
40 | mPostProcessSamples(0),
|
---|
41 | mVisualizationSamples(0),
|
---|
42 | mTotalAreaValid(false),
|
---|
43 | mTotalArea(0.0f),
|
---|
44 | mViewCellsFinished(false),
|
---|
45 | mMaxPvsSize(9999999),
|
---|
46 | mMinPvsSize(1), // only empty view cells are invalid
|
---|
47 | mMaxPvsRatio(1.0)
|
---|
48 | {
|
---|
49 | mViewSpaceBox.Initialize();
|
---|
50 | ParseEnvironment();
|
---|
51 | }
|
---|
52 |
|
---|
53 |
|
---|
54 | void ViewCellsManager::ParseEnvironment()
|
---|
55 | {
|
---|
56 | // visualization stuff
|
---|
57 | environment->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
|
---|
58 | environment->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
|
---|
59 | environment->GetFloatValue("ViewCells.maxPvsRatio", mMaxPvsRatio);
|
---|
60 |
|
---|
61 | char buf[50];
|
---|
62 |
|
---|
63 | environment->GetStringValue("ViewCells.Visualization.colorCode", buf);
|
---|
64 |
|
---|
65 | if (strcmp(buf, "PVS") == 0)
|
---|
66 | mColorCode = 1;
|
---|
67 | else if (strcmp(buf, "MergedLeaves") == 0)
|
---|
68 | mColorCode = 2;
|
---|
69 | else if (strcmp(buf, "MergedTreeDiff") == 0)
|
---|
70 | mColorCode = 3;
|
---|
71 | else
|
---|
72 | mColorCode = 0;
|
---|
73 |
|
---|
74 | Debug << "colorCode: " << mColorCode << endl;
|
---|
75 | }
|
---|
76 |
|
---|
77 |
|
---|
78 | ViewCellsManager::~ViewCellsManager()
|
---|
79 | {
|
---|
80 | DEL_PTR(mRenderer);
|
---|
81 | CLEAR_CONTAINER(mViewCells);
|
---|
82 | CLEAR_CONTAINER(mMeshContainer);
|
---|
83 | }
|
---|
84 |
|
---|
85 |
|
---|
86 | int ViewCellsManager::Construct(VssRayContainer &rays)
|
---|
87 | {
|
---|
88 | /* VssPreprocessor preprocessor;
|
---|
89 |
|
---|
90 | VssRayContainer vssRays;
|
---|
91 | preprocessor->GenerateVssRays(mConstructionSamples, vssRays);
|
---|
92 | Construct(preprocessor->mObjects, vssRays);
|
---|
93 |
|
---|
94 | // add rays to output rays
|
---|
95 | while (!vssRays.empty)
|
---|
96 | {
|
---|
97 | rays.push_back(vssRays.back());
|
---|
98 | vssRays.pop_back();
|
---|
99 | }
|
---|
100 |
|
---|
101 | const int importanceRays = 1000000;
|
---|
102 | preprocessor->GenerateVssRays(max(importanceRays, mPostProcessSamples);
|
---|
103 |
|
---|
104 | PostProcess(preprocesor->mObjects, importanceRays);
|
---|
105 | Visualize(preprocessor->mObjects, importanceRays);
|
---|
106 |
|
---|
107 | // add rays to output rays
|
---|
108 | while (!importanceRays.empty)
|
---|
109 | {
|
---|
110 | rays.push_back(importanceRays.back());
|
---|
111 | importanceRays.pop_back();
|
---|
112 | }
|
---|
113 | */
|
---|
114 | return (int)rays.size();
|
---|
115 | }
|
---|
116 |
|
---|
117 |
|
---|
118 | bool ViewCellsManager::CheckValidity(ViewCell *vc,
|
---|
119 | int minPvsSize,
|
---|
120 | int maxPvsSize) const
|
---|
121 | {
|
---|
122 | if ((vc->GetPvs().GetSize() > mMaxPvsSize) ||
|
---|
123 | (vc->GetPvs().GetSize() < mMinPvsSize))
|
---|
124 | {
|
---|
125 | return false;
|
---|
126 | }
|
---|
127 |
|
---|
128 | return true;
|
---|
129 | }
|
---|
130 |
|
---|
131 |
|
---|
132 | void ViewCellsManager::SetValidity(ViewCell *vc,
|
---|
133 | int minPvs,
|
---|
134 | int maxPvs) const
|
---|
135 | {
|
---|
136 | vc->SetValid(CheckValidity(vc, minPvs, maxPvs));
|
---|
137 | }
|
---|
138 |
|
---|
139 |
|
---|
140 | bool ViewCellsManager::LoadViewCells(const string filename, ObjectContainer *objects)
|
---|
141 | {
|
---|
142 | X3dParser parser;
|
---|
143 |
|
---|
144 | environment->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
|
---|
145 |
|
---|
146 | bool success = parser.ParseFile(filename, *this);
|
---|
147 | Debug << (int)mViewCells.size() << " view cells loaded" << endl;
|
---|
148 |
|
---|
149 | return success;
|
---|
150 | }
|
---|
151 |
|
---|
152 |
|
---|
153 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
154 | {
|
---|
155 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
156 |
|
---|
157 | return true;
|
---|
158 | }
|
---|
159 |
|
---|
160 |
|
---|
161 | float ViewCellsManager::GetViewSpaceVolume()
|
---|
162 | {
|
---|
163 | return mViewSpaceBox.GetVolume()*(2.0f*sqr(M_PI));
|
---|
164 | }
|
---|
165 |
|
---|
166 |
|
---|
167 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
168 | {
|
---|
169 | return mViewSpaceBox.IsInside(viewPoint);
|
---|
170 | }
|
---|
171 |
|
---|
172 |
|
---|
173 | void ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays)
|
---|
174 | {
|
---|
175 | // view cells not yet constructed
|
---|
176 | if (!ViewCellsConstructed())
|
---|
177 | return;
|
---|
178 |
|
---|
179 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
180 |
|
---|
181 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
182 | {
|
---|
183 | ComputeSampleContributions(*(*it));
|
---|
184 | }
|
---|
185 | }
|
---|
186 |
|
---|
187 |
|
---|
188 | void ViewCellsManager::EvaluateViewCellsStats()
|
---|
189 | {
|
---|
190 | mViewCellsStats.Reset();
|
---|
191 |
|
---|
192 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
193 |
|
---|
194 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
195 | {
|
---|
196 | (*it)->UpdateViewCellsStats(mViewCellsStats);
|
---|
197 | }
|
---|
198 | }
|
---|
199 |
|
---|
200 |
|
---|
201 | void ViewCellsManager::AddViewCell(ViewCell *viewCell)
|
---|
202 | {
|
---|
203 | mViewCells.push_back(viewCell);
|
---|
204 | }
|
---|
205 |
|
---|
206 |
|
---|
207 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
208 | {
|
---|
209 | return viewCell->GetArea();
|
---|
210 | }
|
---|
211 |
|
---|
212 |
|
---|
213 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
|
---|
214 | {
|
---|
215 | return viewCell->GetVolume();
|
---|
216 | }
|
---|
217 |
|
---|
218 |
|
---|
219 | void ViewCellsManager::DeriveViewCells(const ObjectContainer &objects,
|
---|
220 | ViewCellContainer &viewCells,
|
---|
221 | const int maxViewCells) const
|
---|
222 | {
|
---|
223 | // maximal max viewcells
|
---|
224 | int limit = maxViewCells > 0 ?
|
---|
225 | Min((int)objects.size(), maxViewCells) : (int)objects.size();
|
---|
226 |
|
---|
227 | for (int i = 0; i < limit; ++ i)
|
---|
228 | {
|
---|
229 | Intersectable *object = objects[i];
|
---|
230 |
|
---|
231 | // extract the mesh instances
|
---|
232 | if (object->Type() == Intersectable::MESH_INSTANCE)
|
---|
233 | {
|
---|
234 | MeshInstance *inst = dynamic_cast<MeshInstance *>(object);
|
---|
235 |
|
---|
236 | ViewCell *viewCell = GenerateViewCell(inst->GetMesh());
|
---|
237 | viewCells.push_back(viewCell);
|
---|
238 | }
|
---|
239 | //TODO: transformed meshes
|
---|
240 | }
|
---|
241 | }
|
---|
242 |
|
---|
243 |
|
---|
244 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
|
---|
245 | const float height) const
|
---|
246 | {
|
---|
247 | // one mesh per view cell
|
---|
248 | Mesh *mesh = new Mesh();
|
---|
249 |
|
---|
250 | //-- construct prism
|
---|
251 |
|
---|
252 | // bottom
|
---|
253 | mesh->mFaces.push_back(new Face(2,1,0));
|
---|
254 | // top
|
---|
255 | mesh->mFaces.push_back(new Face(3,4,5));
|
---|
256 | // sides
|
---|
257 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
|
---|
258 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
|
---|
259 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
|
---|
260 |
|
---|
261 | //--- extrude new vertices for top of prism
|
---|
262 | Vector3 triNorm = baseTri.GetNormal();
|
---|
263 |
|
---|
264 | Triangle3 topTri;
|
---|
265 |
|
---|
266 | // add base vertices and calculate top vertices
|
---|
267 | for (int i = 0; i < 3; ++ i)
|
---|
268 | mesh->mVertices.push_back(baseTri.mVertices[i]);
|
---|
269 |
|
---|
270 | // add top vertices
|
---|
271 | for (int i = 0; i < 3; ++ i)
|
---|
272 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
|
---|
273 |
|
---|
274 | mesh->Preprocess();
|
---|
275 |
|
---|
276 | return GenerateViewCell(mesh);
|
---|
277 | }
|
---|
278 |
|
---|
279 |
|
---|
280 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
|
---|
281 | {
|
---|
282 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
283 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
284 | {
|
---|
285 | Finalize(*it, createMesh);
|
---|
286 | }
|
---|
287 |
|
---|
288 | mTotalAreaValid = false;
|
---|
289 | }
|
---|
290 |
|
---|
291 |
|
---|
292 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
293 | {
|
---|
294 | // implemented in subclasses
|
---|
295 | }
|
---|
296 |
|
---|
297 |
|
---|
298 | ViewCell *ViewCellsManager::MergeViewCells(ViewCell &front, ViewCell &back) const
|
---|
299 | {
|
---|
300 | // generate merged view cell
|
---|
301 | ViewCell *vc = GenerateViewCell();
|
---|
302 |
|
---|
303 | // merge pvs
|
---|
304 | vc->GetPvs().Merge(front.GetPvs(), back.GetPvs());
|
---|
305 |
|
---|
306 | //-- merge ray sets
|
---|
307 | stable_sort(front.mPiercingRays.begin(), front.mPiercingRays.end());
|
---|
308 | stable_sort(back.mPiercingRays.begin(), back.mPiercingRays.end());
|
---|
309 |
|
---|
310 | std::merge(front.mPiercingRays.begin(), front.mPiercingRays.end(),
|
---|
311 | back.mPiercingRays.begin(), back.mPiercingRays.end(),
|
---|
312 | vc->mPiercingRays.begin());
|
---|
313 |
|
---|
314 | return vc;
|
---|
315 | }
|
---|
316 |
|
---|
317 |
|
---|
318 | void ViewCellsManager::SetRenderer(Renderer *renderer)
|
---|
319 | {
|
---|
320 | mRenderer = renderer;
|
---|
321 | }
|
---|
322 |
|
---|
323 |
|
---|
324 | ViewCell *ViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
325 | {
|
---|
326 | return new ViewCell(mesh);
|
---|
327 | }
|
---|
328 |
|
---|
329 |
|
---|
330 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
|
---|
331 | {
|
---|
332 | mVisualizationSamples = visSamples;
|
---|
333 | }
|
---|
334 |
|
---|
335 |
|
---|
336 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
|
---|
337 | {
|
---|
338 | mConstructionSamples = constructionSamples;
|
---|
339 | }
|
---|
340 |
|
---|
341 |
|
---|
342 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
|
---|
343 | {
|
---|
344 | mPostProcessSamples = postProcessSamples;
|
---|
345 | }
|
---|
346 |
|
---|
347 |
|
---|
348 | int ViewCellsManager::GetVisualizationSamples() const
|
---|
349 | {
|
---|
350 | return mVisualizationSamples;
|
---|
351 | }
|
---|
352 |
|
---|
353 |
|
---|
354 | int ViewCellsManager::GetConstructionSamples() const
|
---|
355 | {
|
---|
356 | return mConstructionSamples;
|
---|
357 | }
|
---|
358 |
|
---|
359 |
|
---|
360 | int ViewCellsManager::GetPostProcessSamples() const
|
---|
361 | {
|
---|
362 | return mPostProcessSamples;
|
---|
363 | }
|
---|
364 |
|
---|
365 |
|
---|
366 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
|
---|
367 | {
|
---|
368 | ViewCellContainer::const_iterator it = mViewCells.begin();
|
---|
369 | stat.viewcells = 0;
|
---|
370 | stat.minPvs = 100000000;
|
---|
371 | stat.maxPvs = 0;
|
---|
372 | stat.avgPvs = 0.0f;
|
---|
373 |
|
---|
374 | for (; it != mViewCells.end(); ++it) {
|
---|
375 | ViewCell *viewcell = *it;
|
---|
376 | int pvsSize = viewcell->GetPvs().GetSize();
|
---|
377 | if ( pvsSize < stat.minPvs)
|
---|
378 | stat.minPvs = pvsSize;
|
---|
379 | if (pvsSize > stat.maxPvs)
|
---|
380 | stat.maxPvs = pvsSize;
|
---|
381 | stat.avgPvs += pvsSize;
|
---|
382 | stat.viewcells++;
|
---|
383 | }
|
---|
384 | if (stat.viewcells)
|
---|
385 | stat.avgPvs/=stat.viewcells;
|
---|
386 | }
|
---|
387 |
|
---|
388 |
|
---|
389 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
|
---|
390 | {
|
---|
391 | s<<"############# Viewcell PVS STAT ##################\n";
|
---|
392 | PvsStatistics pvsStat;
|
---|
393 | GetPvsStatistics(pvsStat);
|
---|
394 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
|
---|
395 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
|
---|
396 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
|
---|
397 | }
|
---|
398 |
|
---|
399 |
|
---|
400 | int ViewCellsManager::CastBeam(Beam &beam)
|
---|
401 | {
|
---|
402 | return 0;
|
---|
403 | }
|
---|
404 |
|
---|
405 |
|
---|
406 | ViewCellContainer &ViewCellsManager::GetViewCells()
|
---|
407 | {
|
---|
408 | return mViewCells;
|
---|
409 | }
|
---|
410 |
|
---|
411 |
|
---|
412 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
|
---|
413 | {
|
---|
414 | mViewSpaceBox = box;
|
---|
415 | }
|
---|
416 |
|
---|
417 |
|
---|
418 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
|
---|
419 | {
|
---|
420 | return mViewSpaceBox;
|
---|
421 | }
|
---|
422 |
|
---|
423 |
|
---|
424 | void ViewCellsManager::ResetViewCells()
|
---|
425 | {
|
---|
426 | mViewCells.clear();
|
---|
427 |
|
---|
428 | CollectViewCells();
|
---|
429 |
|
---|
430 | mViewCellsStats.Reset();
|
---|
431 | EvaluateViewCellsStats();
|
---|
432 | // has to be recomputed
|
---|
433 | mTotalAreaValid = false;
|
---|
434 | }
|
---|
435 |
|
---|
436 |
|
---|
437 | int ViewCellsManager::GetMaxPvsSize() const
|
---|
438 | {
|
---|
439 | return mMaxPvsSize;
|
---|
440 | }
|
---|
441 |
|
---|
442 |
|
---|
443 | int ViewCellsManager::GetMinPvsSize() const
|
---|
444 | {
|
---|
445 | return mMinPvsSize;
|
---|
446 | }
|
---|
447 |
|
---|
448 |
|
---|
449 |
|
---|
450 | float ViewCellsManager::GetMaxPvsRatio() const
|
---|
451 | {
|
---|
452 | return mMaxPvsRatio;
|
---|
453 | }
|
---|
454 |
|
---|
455 |
|
---|
456 | void ViewCellsManager::ComputeSampleContributions(VssRay &ray)
|
---|
457 | {
|
---|
458 | ViewCellContainer viewcells;
|
---|
459 |
|
---|
460 | ray.mPvsContribution = 0;
|
---|
461 | ray.mRelativePvsContribution = 0.0f;
|
---|
462 |
|
---|
463 | // matt TODO: remove this!!
|
---|
464 | Ray hray(ray);
|
---|
465 | //static Ray hray;
|
---|
466 | //hray.Init(ray.GetOrigin(), ray.GetDir(), Ray::LINE_SEGMENT);
|
---|
467 |
|
---|
468 | float tmin = 0, tmax = 1.0;
|
---|
469 |
|
---|
470 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
471 | return;
|
---|
472 |
|
---|
473 | Vector3 origin = hray.Extrap(tmin);
|
---|
474 | Vector3 termination = hray.Extrap(tmax);
|
---|
475 |
|
---|
476 | CastLineSegment(origin, termination, viewcells);
|
---|
477 | //Debug << "constribution: " << (int)viewcells.size() << endl;
|
---|
478 | // copy viewcells memory efficiently
|
---|
479 | const bool storeViewcells = false;
|
---|
480 | if (storeViewcells)
|
---|
481 | {
|
---|
482 | ray.mViewCells.reserve(viewcells.size());
|
---|
483 | ray.mViewCells = viewcells;
|
---|
484 | }
|
---|
485 |
|
---|
486 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
487 |
|
---|
488 | bool addInPlace = false;
|
---|
489 |
|
---|
490 | if (addInPlace)
|
---|
491 | {
|
---|
492 | for (; it != viewcells.end(); ++it) {
|
---|
493 | ViewCell *viewcell = *it;
|
---|
494 |
|
---|
495 | // if ray not outside of view space
|
---|
496 | float contribution;
|
---|
497 | bool added =
|
---|
498 | viewcell->GetPvs().AddSample(ray.mTerminationObject,
|
---|
499 | ray.mPdf,
|
---|
500 | contribution
|
---|
501 | );
|
---|
502 | if (added)
|
---|
503 | ray.mPvsContribution++;
|
---|
504 |
|
---|
505 | ray.mRelativePvsContribution += contribution;
|
---|
506 | }
|
---|
507 | }
|
---|
508 | else
|
---|
509 | {
|
---|
510 | for (; it != viewcells.end(); ++it) {
|
---|
511 | ViewCell *viewcell = *it;
|
---|
512 | // if ray not outside of view space
|
---|
513 | float contribution;
|
---|
514 | if (viewcell->GetPvs().GetSampleContribution(ray.mTerminationObject,
|
---|
515 | ray.mPdf,
|
---|
516 | contribution
|
---|
517 | ))
|
---|
518 | ray.mPvsContribution++;
|
---|
519 | ray.mRelativePvsContribution += contribution;
|
---|
520 | }
|
---|
521 |
|
---|
522 | for (it = viewcells.begin(); it != viewcells.end(); ++it) {
|
---|
523 | ViewCell *viewcell = *it;
|
---|
524 | // if ray not outside of view space
|
---|
525 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
526 | }
|
---|
527 | }
|
---|
528 | }
|
---|
529 |
|
---|
530 |
|
---|
531 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
532 | const int maxSize,
|
---|
533 | VssRayContainer &usedRays,
|
---|
534 | VssRayContainer *savedRays) const
|
---|
535 | {
|
---|
536 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
537 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
538 |
|
---|
539 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
540 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
541 | {
|
---|
542 | if (Random(1.0f) < prop)
|
---|
543 | usedRays.push_back(*it);
|
---|
544 | else if (savedRays)
|
---|
545 | savedRays->push_back(*it);
|
---|
546 | }
|
---|
547 | }
|
---|
548 |
|
---|
549 |
|
---|
550 | float ViewCellsManager::GetAccVcArea()
|
---|
551 | {
|
---|
552 | // if already computed
|
---|
553 | if (mTotalAreaValid)
|
---|
554 | return mTotalArea;
|
---|
555 |
|
---|
556 | mTotalArea = 0;
|
---|
557 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
558 |
|
---|
559 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
560 | {
|
---|
561 | //Debug << "area: " << GetArea(*it);
|
---|
562 | mTotalArea += GetArea(*it);
|
---|
563 | }
|
---|
564 |
|
---|
565 | mTotalAreaValid = true;
|
---|
566 |
|
---|
567 | return mTotalArea;
|
---|
568 | }
|
---|
569 |
|
---|
570 |
|
---|
571 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
572 | {
|
---|
573 | s << mViewCellsStats << endl;
|
---|
574 | }
|
---|
575 |
|
---|
576 |
|
---|
577 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
578 | {
|
---|
579 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
580 | mViewCells[i]->SetId(i);
|
---|
581 | }
|
---|
582 |
|
---|
583 |
|
---|
584 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter) const
|
---|
585 | {
|
---|
586 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
587 |
|
---|
588 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
589 | {
|
---|
590 | ExportColor(exporter, *it);
|
---|
591 | ExportVcGeometry(exporter, *it);
|
---|
592 | }
|
---|
593 | }
|
---|
594 |
|
---|
595 |
|
---|
596 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
597 | {
|
---|
598 | // convert to meshes
|
---|
599 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
600 |
|
---|
601 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
602 | {
|
---|
603 | if (!(*it)->GetMesh())
|
---|
604 | CreateMesh(*it);
|
---|
605 | }
|
---|
606 | }
|
---|
607 |
|
---|
608 |
|
---|
609 | bool ViewCellsManager::ExportViewCells(const string filename)
|
---|
610 | {
|
---|
611 | return false;
|
---|
612 | }
|
---|
613 |
|
---|
614 |
|
---|
615 | void ViewCellsManager::ExportViewCell(ViewCell *viewCell, ofstream &stream)
|
---|
616 | {
|
---|
617 | stream << "<ViewCell id=\"" << viewCell->GetId() << "\" ";
|
---|
618 | stream << "pvs=\"";
|
---|
619 |
|
---|
620 | ObjectPvsMap::iterator it, it_end = viewCell->GetPvs().mEntries.end();
|
---|
621 | if(0) // test with empty pvs
|
---|
622 | for (it = viewCell->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
623 | {
|
---|
624 | stream << (*it).first->GetId() << " ";
|
---|
625 | }
|
---|
626 |
|
---|
627 | stream << "\" />" << endl;
|
---|
628 | }
|
---|
629 |
|
---|
630 |
|
---|
631 | /**********************************************************************/
|
---|
632 | /* BspViewCellsManager implementation */
|
---|
633 | /**********************************************************************/
|
---|
634 |
|
---|
635 |
|
---|
636 | BspViewCellsManager::BspViewCellsManager(BspTree *bspTree,
|
---|
637 | int constructionSamples):
|
---|
638 | ViewCellsManager(constructionSamples),
|
---|
639 | mBspTree(bspTree)
|
---|
640 | {
|
---|
641 | }
|
---|
642 |
|
---|
643 |
|
---|
644 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
645 | {
|
---|
646 | return mBspTree->GetRoot() != NULL;
|
---|
647 | }
|
---|
648 |
|
---|
649 |
|
---|
650 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
651 | {
|
---|
652 | return new BspViewCell(mesh);
|
---|
653 | }
|
---|
654 |
|
---|
655 |
|
---|
656 | int BspViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
657 | const VssRayContainer &rays)
|
---|
658 | {
|
---|
659 | // if view cells were already constructed
|
---|
660 | if (ViewCellsConstructed())
|
---|
661 | return 0;
|
---|
662 |
|
---|
663 | int sampleContributions = 0;
|
---|
664 |
|
---|
665 | // construct view cells using the collected samples
|
---|
666 | RayContainer constructionRays;
|
---|
667 | VssRayContainer savedRays;
|
---|
668 |
|
---|
669 | const int limit = min(mConstructionSamples, (int)rays.size());
|
---|
670 |
|
---|
671 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
672 |
|
---|
673 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
674 |
|
---|
675 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
676 | {
|
---|
677 | if (Random(1.0f) < prop)
|
---|
678 | constructionRays.push_back(new Ray(*(*it)));
|
---|
679 | else
|
---|
680 | savedRays.push_back(*it);
|
---|
681 | }
|
---|
682 |
|
---|
683 | if (mViewCells.empty())
|
---|
684 | {
|
---|
685 | // no view cells loaded
|
---|
686 | mBspTree->Construct(objects, constructionRays);
|
---|
687 | // collect final view cells
|
---|
688 | mBspTree->CollectViewCells(mViewCells);
|
---|
689 | }
|
---|
690 | else
|
---|
691 | {
|
---|
692 | mBspTree->Construct(mViewCells);
|
---|
693 | }
|
---|
694 |
|
---|
695 | // destroy rays created only for construction
|
---|
696 | CLEAR_CONTAINER(constructionRays);
|
---|
697 |
|
---|
698 | Debug << mBspTree->GetStatistics() << endl;
|
---|
699 |
|
---|
700 | //EvaluateViewCellsStats();
|
---|
701 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
702 |
|
---|
703 | // recast rest of the rays
|
---|
704 | ComputeSampleContributions(savedRays);
|
---|
705 |
|
---|
706 |
|
---|
707 | return sampleContributions;
|
---|
708 | }
|
---|
709 |
|
---|
710 |
|
---|
711 | void BspViewCellsManager::CollectViewCells()
|
---|
712 | {
|
---|
713 | mBspTree->CollectViewCells(mViewCells);
|
---|
714 | }
|
---|
715 |
|
---|
716 |
|
---|
717 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
718 | {
|
---|
719 | // compute view cell area as subsititute for probability
|
---|
720 | #if 1
|
---|
721 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
722 | #else
|
---|
723 | return GetArea(viewCell) / GetAccVcArea();
|
---|
724 | #endif
|
---|
725 | }
|
---|
726 |
|
---|
727 |
|
---|
728 | float BspViewCellsManager::GetRendercost(ViewCell *viewCell, float objRendercost) const
|
---|
729 | {
|
---|
730 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
731 | }
|
---|
732 |
|
---|
733 |
|
---|
734 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
735 | const Vector3 &termination,
|
---|
736 | ViewCellContainer &viewcells)
|
---|
737 | {
|
---|
738 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
739 | }
|
---|
740 |
|
---|
741 |
|
---|
742 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
743 | const VssRayContainer &rays)
|
---|
744 | {
|
---|
745 | if (!ViewCellsConstructed())
|
---|
746 | {
|
---|
747 | Debug << "view cells not constructed" << endl;
|
---|
748 | return 0;
|
---|
749 | }
|
---|
750 |
|
---|
751 | //-- post processing of bsp view cells
|
---|
752 | int vcSize = 0;
|
---|
753 | int pvsSize = 0;
|
---|
754 |
|
---|
755 | EvaluateViewCellsStats();
|
---|
756 | Debug << "\noriginal view cell partition:\n" << mViewCellsStats << endl;
|
---|
757 |
|
---|
758 | mRenderer->RenderScene();
|
---|
759 | SimulationStatistics ss;
|
---|
760 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
761 |
|
---|
762 | Debug << ss << endl;
|
---|
763 |
|
---|
764 | if (1) // export view cells
|
---|
765 | {
|
---|
766 | cout << "exporting initial view cells (=leaves) ... ";
|
---|
767 | Exporter *exporter = Exporter::GetExporter("view_cells.x3d");
|
---|
768 |
|
---|
769 | if (exporter)
|
---|
770 | {
|
---|
771 | //exporter->SetWireframe();
|
---|
772 | exporter->SetFilled();
|
---|
773 | ExportViewCellsForViz(exporter);
|
---|
774 |
|
---|
775 | if (mExportGeometry)
|
---|
776 | {
|
---|
777 | Material m;
|
---|
778 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
779 | exporter->SetForcedMaterial(m);
|
---|
780 | exporter->SetWireframe();
|
---|
781 |
|
---|
782 | exporter->ExportGeometry(objects);
|
---|
783 | }
|
---|
784 |
|
---|
785 | delete exporter;
|
---|
786 | }
|
---|
787 | cout << "finished" << endl;
|
---|
788 | }
|
---|
789 |
|
---|
790 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
791 |
|
---|
792 | long startTime = GetTime();
|
---|
793 |
|
---|
794 |
|
---|
795 | // $$JB we do not have connectivity information from the ray in the moment
|
---|
796 | // perhaps we could recast the rays or remember the cells traversed inside the
|
---|
797 | // vssray (which would on other hand create some overhead)
|
---|
798 | //-- merge or subdivide view cells
|
---|
799 | int merged = 0;
|
---|
800 |
|
---|
801 | vector<BspIntersection>::const_iterator iit;
|
---|
802 | CLEAR_CONTAINER(mBspRays);
|
---|
803 | ConstructBspRays(rays, mPostProcessSamples);
|
---|
804 |
|
---|
805 | for (int i = 0; i < (int)mBspRays.size(); ++ i)
|
---|
806 | {
|
---|
807 | BspRay *ray = mBspRays[i];
|
---|
808 |
|
---|
809 | // traverse leaves stored in the rays and compare and merge consecutive
|
---|
810 | // leaves (i.e., the neighbors in the tree)
|
---|
811 | if (ray->intersections.size() < 2)
|
---|
812 | continue;
|
---|
813 | #if 0
|
---|
814 | iit = ray->intersections.begin();
|
---|
815 |
|
---|
816 | BspLeaf *previousLeaf = (*iit).mLeaf;
|
---|
817 | ++ iit;
|
---|
818 |
|
---|
819 | for (; iit != ray->intersections.end(); ++ iit)
|
---|
820 | {
|
---|
821 | BspLeaf *leaf = (*iit).mLeaf;
|
---|
822 |
|
---|
823 | if (ShouldMerge(leaf, previousLeaf))
|
---|
824 | {
|
---|
825 | MergeBspLeafViewCells(leaf, previousLeaf);
|
---|
826 |
|
---|
827 | ++ merged;
|
---|
828 | }
|
---|
829 |
|
---|
830 | previousLeaf = leaf;
|
---|
831 | }
|
---|
832 | #endif
|
---|
833 | }
|
---|
834 |
|
---|
835 | //-- stats and visualizations
|
---|
836 | cout << "finished" << endl;
|
---|
837 | cout << "merged " << merged << " view cells in "
|
---|
838 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
839 |
|
---|
840 | Debug << "Postprocessing: Merged " << merged << " view cells in "
|
---|
841 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs"
|
---|
842 | << "using " << (int)mBspRays.size() << " samples" << endl << endl;
|
---|
843 |
|
---|
844 | CLEAR_CONTAINER(mBspRays);
|
---|
845 |
|
---|
846 | // reset view cells and stats
|
---|
847 | ResetViewCells();
|
---|
848 |
|
---|
849 | return merged;
|
---|
850 | }
|
---|
851 |
|
---|
852 |
|
---|
853 | BspViewCellsManager::~BspViewCellsManager()
|
---|
854 | {
|
---|
855 | CLEAR_CONTAINER(mBspRays);
|
---|
856 | }
|
---|
857 |
|
---|
858 |
|
---|
859 | int BspViewCellsManager::GetType() const
|
---|
860 | {
|
---|
861 | return BSP;
|
---|
862 | }
|
---|
863 |
|
---|
864 |
|
---|
865 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
866 | const VssRayContainer &sampleRays)
|
---|
867 | {
|
---|
868 | if (!ViewCellsConstructed())
|
---|
869 | return;
|
---|
870 | CLEAR_CONTAINER(mBspRays);
|
---|
871 | ConstructBspRays(sampleRays, mVisualizationSamples);
|
---|
872 |
|
---|
873 | if (1) // export view cells
|
---|
874 | {
|
---|
875 | cout << "exporting view cells after merge ... ";
|
---|
876 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.x3d");
|
---|
877 |
|
---|
878 |
|
---|
879 | if (exporter)
|
---|
880 | {
|
---|
881 | ExportViewCellsForViz(exporter);
|
---|
882 | delete exporter;
|
---|
883 | }
|
---|
884 |
|
---|
885 | cout << "finished" << endl;
|
---|
886 | }
|
---|
887 |
|
---|
888 | //-- visualization of the BSP splits
|
---|
889 | bool exportSplits = false;
|
---|
890 | environment->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
891 |
|
---|
892 | if (exportSplits)
|
---|
893 | {
|
---|
894 | cout << "exporting splits ... ";
|
---|
895 | ExportSplits(objects);
|
---|
896 | cout << "finished" << endl;
|
---|
897 | }
|
---|
898 |
|
---|
899 | ExportBspPvs(objects);
|
---|
900 | }
|
---|
901 |
|
---|
902 |
|
---|
903 | inline bool vc_gt(ViewCell *a, ViewCell *b)
|
---|
904 | {
|
---|
905 | return a->GetPvs().GetSize() > b->GetPvs().GetSize();
|
---|
906 | }
|
---|
907 |
|
---|
908 |
|
---|
909 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
910 | {
|
---|
911 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
912 |
|
---|
913 | if (exporter)
|
---|
914 | {
|
---|
915 | Material m;
|
---|
916 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
917 | exporter->SetForcedMaterial(m);
|
---|
918 | exporter->SetWireframe();
|
---|
919 |
|
---|
920 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
921 |
|
---|
922 | //NOTE: take forced material, else big scenes cannot be viewed
|
---|
923 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
924 | exporter->SetForcedMaterial(m);
|
---|
925 | //exporter->ResetForcedMaterial();
|
---|
926 |
|
---|
927 | exporter->SetFilled();
|
---|
928 |
|
---|
929 | // export rays
|
---|
930 | if (0)
|
---|
931 | {
|
---|
932 | VssRayContainer outRays;
|
---|
933 |
|
---|
934 | int raysSize = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
935 |
|
---|
936 | for (int i = 0; i < raysSize; ++ i)
|
---|
937 | // only rays piercing geometry
|
---|
938 | outRays.push_back(mBspRays[i]->vssRay);
|
---|
939 |
|
---|
940 | // export rays
|
---|
941 | exporter->ExportRays(outRays, RgbColor(1, 1, 0));
|
---|
942 | }
|
---|
943 |
|
---|
944 | if (mExportGeometry)
|
---|
945 | exporter->ExportGeometry(objects);
|
---|
946 |
|
---|
947 | delete exporter;
|
---|
948 | }
|
---|
949 | }
|
---|
950 |
|
---|
951 |
|
---|
952 | void BspViewCellsManager::ExportBspPvs(const ObjectContainer &objects)
|
---|
953 | {
|
---|
954 | const int leafOut = 10;
|
---|
955 |
|
---|
956 | ViewCell::NewMail();
|
---|
957 |
|
---|
958 | //-- some rays for output
|
---|
959 | const int raysOut = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
960 |
|
---|
961 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
962 | Debug << "\nOutput view cells: " << endl;
|
---|
963 |
|
---|
964 | // sort view cells to get largest view cells
|
---|
965 | #if 0
|
---|
966 | stable_sort(mViewCells.begin(), mViewCells.end(), vc_gt);
|
---|
967 | #endif
|
---|
968 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
969 |
|
---|
970 | for (int i = 0; i < limit; ++ i)
|
---|
971 | {
|
---|
972 | cout << "creating output for view cell " << i << " ... ";
|
---|
973 | VssRayContainer vcRays;
|
---|
974 | Intersectable::NewMail();
|
---|
975 | #if 0
|
---|
976 | BspViewCell *vc = dynamic_cast<BspViewCell *>(mViewCells[i]);
|
---|
977 | #else
|
---|
978 | BspViewCell *vc = dynamic_cast<BspViewCell *>(mViewCells[Random((int)mViewCells.size())]);
|
---|
979 | #endif
|
---|
980 | cout << "creating output for view cell " << i << " ... ";
|
---|
981 |
|
---|
982 | #if 0
|
---|
983 | // check whether we can add the current ray to the output rays
|
---|
984 | for (int k = 0; k < raysOut; ++ k)
|
---|
985 | {
|
---|
986 | BspRay *ray = mBspRays[k];
|
---|
987 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
988 | {
|
---|
989 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
990 | if (vc == leaf->GetViewCell())
|
---|
991 | vcRays.push_back(ray->vssRay);
|
---|
992 | }
|
---|
993 | }
|
---|
994 | #endif
|
---|
995 | //bspLeaves[j]->Mail();
|
---|
996 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
997 |
|
---|
998 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
999 |
|
---|
1000 | exporter->SetWireframe();
|
---|
1001 |
|
---|
1002 | Material m;//= RandomMaterial();
|
---|
1003 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
1004 | exporter->SetForcedMaterial(m);
|
---|
1005 |
|
---|
1006 | if (vc->GetMesh())
|
---|
1007 | exporter->ExportViewCell(vc);
|
---|
1008 | else
|
---|
1009 | {
|
---|
1010 | BspNodeGeometry vcGeom;
|
---|
1011 |
|
---|
1012 | //-- export view cell
|
---|
1013 | mBspTree->ConstructGeometry(vc, vcGeom);
|
---|
1014 | exporter->ExportPolygons(vcGeom.mPolys);
|
---|
1015 | }
|
---|
1016 |
|
---|
1017 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
1018 | << ", piercing rays=" << (int)vcRays.size()
|
---|
1019 | << ", leaves=" << (int)vc->mLeaves.size() << endl;
|
---|
1020 |
|
---|
1021 |
|
---|
1022 | // export rays piercing this view cell
|
---|
1023 | #if 0
|
---|
1024 | exporter->ExportRays(vcRays, RgbColor(0, 1, 0));
|
---|
1025 | #else
|
---|
1026 | vector<BspLeaf *>::const_iterator lit, lit_end = vc->mLeaves.end();
|
---|
1027 | for (lit = vc->mLeaves.begin(); lit != lit_end; ++ lit)
|
---|
1028 | exporter->ExportRays((*lit)->mVssRays);
|
---|
1029 | #endif
|
---|
1030 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1031 | exporter->SetForcedMaterial(m);
|
---|
1032 |
|
---|
1033 | ObjectPvsMap::const_iterator it,
|
---|
1034 | it_end = vc->GetPvs().mEntries.end();
|
---|
1035 |
|
---|
1036 | exporter->SetFilled();
|
---|
1037 |
|
---|
1038 | // output PVS of view cell
|
---|
1039 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
1040 | {
|
---|
1041 | Intersectable *intersect = (*it).first;
|
---|
1042 |
|
---|
1043 | if (!intersect->Mailed())
|
---|
1044 | {
|
---|
1045 | Material m = RandomMaterial();
|
---|
1046 | exporter->SetForcedMaterial(m);
|
---|
1047 |
|
---|
1048 | exporter->ExportIntersectable(intersect);
|
---|
1049 | intersect->Mail();
|
---|
1050 | }
|
---|
1051 | }
|
---|
1052 |
|
---|
1053 | DEL_PTR(exporter);
|
---|
1054 | cout << "finished" << endl;
|
---|
1055 | }
|
---|
1056 |
|
---|
1057 | Debug << endl;
|
---|
1058 | }
|
---|
1059 |
|
---|
1060 |
|
---|
1061 |
|
---|
1062 | void BspViewCellsManager::ConstructBspRays(const VssRayContainer &rays,
|
---|
1063 | const int numSamples)
|
---|
1064 | {
|
---|
1065 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
1066 |
|
---|
1067 | for (it = rays.begin(); it != rays.end() && mBspRays.size() < numSamples; ++ it)
|
---|
1068 | {
|
---|
1069 | VssRay *vssRay = *it;
|
---|
1070 | BspRay *ray = new BspRay(vssRay);
|
---|
1071 |
|
---|
1072 | ViewCellContainer viewCells;
|
---|
1073 |
|
---|
1074 | // cast line segment to get intersections with bsp leaves
|
---|
1075 | CastLineSegment(vssRay->mTermination, vssRay->mOrigin, viewCells);
|
---|
1076 |
|
---|
1077 | ViewCellContainer::const_iterator vit, vit_end = viewCells.end();
|
---|
1078 | for (vit = viewCells.begin(); vit != vit_end; ++ vit)
|
---|
1079 | {
|
---|
1080 | BspViewCell *vc = dynamic_cast<BspViewCell *>(*vit);
|
---|
1081 | ray->intersections.push_back(BspIntersection(0, vc->mLeaves[0]));
|
---|
1082 | }
|
---|
1083 |
|
---|
1084 | mBspRays.push_back(ray);
|
---|
1085 | }
|
---|
1086 | }
|
---|
1087 |
|
---|
1088 |
|
---|
1089 | void BspViewCellsManager::ExportColor(Exporter *exporter,
|
---|
1090 | ViewCell *vc) const
|
---|
1091 | {
|
---|
1092 | if (mColorCode == 0) // Random color
|
---|
1093 | {
|
---|
1094 | exporter->ResetForcedMaterial();
|
---|
1095 | return;
|
---|
1096 | }
|
---|
1097 |
|
---|
1098 | float importance = 0;
|
---|
1099 |
|
---|
1100 | switch (mColorCode)
|
---|
1101 | {
|
---|
1102 | case 1: // pvs
|
---|
1103 | {
|
---|
1104 | importance = (float)vc->GetPvs().GetSize() /
|
---|
1105 | (float)mViewCellsStats.maxPvs;
|
---|
1106 | }
|
---|
1107 | break;
|
---|
1108 | case 2: // merges
|
---|
1109 | {
|
---|
1110 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(vc);
|
---|
1111 |
|
---|
1112 | importance = (float)bspVc->mLeaves.size() /
|
---|
1113 | (float)mViewCellsStats.maxLeaves;
|
---|
1114 | }
|
---|
1115 | break;
|
---|
1116 | case 3: // merge tree differene
|
---|
1117 | {
|
---|
1118 | // TODO
|
---|
1119 | }
|
---|
1120 | break;
|
---|
1121 | default:
|
---|
1122 | break;
|
---|
1123 | }
|
---|
1124 |
|
---|
1125 | Material m;
|
---|
1126 | m.mDiffuseColor.b = 1.0f;
|
---|
1127 | m.mDiffuseColor.r = importance;
|
---|
1128 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
1129 |
|
---|
1130 | exporter->SetForcedMaterial(m);
|
---|
1131 | }
|
---|
1132 |
|
---|
1133 | void BspViewCellsManager::ExportVcGeometry(Exporter *exporter,
|
---|
1134 | ViewCell *vc) const
|
---|
1135 | {
|
---|
1136 | if (vc->GetMesh())
|
---|
1137 | exporter->ExportViewCell(vc);
|
---|
1138 | else
|
---|
1139 | {
|
---|
1140 | BspNodeGeometry geom;
|
---|
1141 | mBspTree->ConstructGeometry(
|
---|
1142 | dynamic_cast<BspViewCell *>(vc), geom);
|
---|
1143 | exporter->ExportPolygons(geom.mPolys);
|
---|
1144 | }
|
---|
1145 | }
|
---|
1146 |
|
---|
1147 |
|
---|
1148 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
1149 | {
|
---|
1150 | // TODO
|
---|
1151 | }
|
---|
1152 |
|
---|
1153 |
|
---|
1154 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point)
|
---|
1155 | {
|
---|
1156 | if (!mBspTree)
|
---|
1157 | return NULL;
|
---|
1158 | return mBspTree->GetViewCell(point);
|
---|
1159 | }
|
---|
1160 |
|
---|
1161 | /**********************************************************************/
|
---|
1162 | /* KdViewCellsManager implementation */
|
---|
1163 | /**********************************************************************/
|
---|
1164 |
|
---|
1165 |
|
---|
1166 |
|
---|
1167 | KdViewCellsManager::KdViewCellsManager(KdTree *kdTree):
|
---|
1168 | ViewCellsManager(), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
1169 | {
|
---|
1170 | }
|
---|
1171 |
|
---|
1172 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
1173 | {
|
---|
1174 | // compute view cell area / volume as subsititute for probability
|
---|
1175 | #if 0
|
---|
1176 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
1177 | #endif
|
---|
1178 | #if 1
|
---|
1179 | return GetArea(viewCell) / GetAccVcArea();
|
---|
1180 | #endif
|
---|
1181 | #if 0
|
---|
1182 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
1183 | #endif
|
---|
1184 | }
|
---|
1185 |
|
---|
1186 |
|
---|
1187 | float KdViewCellsManager::GetRendercost(ViewCell *viewCell, float objRendercost) const
|
---|
1188 | {
|
---|
1189 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
1190 | }
|
---|
1191 |
|
---|
1192 |
|
---|
1193 | void KdViewCellsManager::CollectViewCells()
|
---|
1194 | {
|
---|
1195 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
1196 | }
|
---|
1197 |
|
---|
1198 |
|
---|
1199 | int KdViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
1200 | const VssRayContainer &rays)
|
---|
1201 | {
|
---|
1202 | // if view cells already constructed
|
---|
1203 | if (ViewCellsConstructed())
|
---|
1204 | return 0;
|
---|
1205 |
|
---|
1206 | mKdTree->Construct();
|
---|
1207 |
|
---|
1208 | mTotalAreaValid = false;
|
---|
1209 | // create the view cells
|
---|
1210 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
1211 |
|
---|
1212 | // cast rays
|
---|
1213 | ComputeSampleContributions(rays);
|
---|
1214 |
|
---|
1215 | EvaluateViewCellsStats();
|
---|
1216 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
1217 |
|
---|
1218 | return 0;
|
---|
1219 | }
|
---|
1220 |
|
---|
1221 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
1222 | {
|
---|
1223 | return mKdTree->GetRoot() != NULL;
|
---|
1224 | }
|
---|
1225 |
|
---|
1226 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
1227 | const VssRayContainer &rays)
|
---|
1228 | {
|
---|
1229 | return 0;
|
---|
1230 | }
|
---|
1231 |
|
---|
1232 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
1233 | const VssRayContainer &sampleRays)
|
---|
1234 | {
|
---|
1235 | if (!ViewCellsConstructed())
|
---|
1236 | return;
|
---|
1237 |
|
---|
1238 | // using view cells instead of the kd PVS of objects
|
---|
1239 | const bool useViewCells = true;
|
---|
1240 | bool exportRays = false;
|
---|
1241 |
|
---|
1242 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
1243 | const int pvsOut = min((int)objects.size(), 10);
|
---|
1244 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
1245 |
|
---|
1246 | if (useViewCells)
|
---|
1247 | {
|
---|
1248 | const int leafOut = 10;
|
---|
1249 |
|
---|
1250 | ViewCell::NewMail();
|
---|
1251 |
|
---|
1252 | //-- some rays for output
|
---|
1253 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
1254 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
1255 |
|
---|
1256 | //-- some random view cells and rays for output
|
---|
1257 | vector<KdLeaf *> kdLeaves;
|
---|
1258 |
|
---|
1259 | for (int i = 0; i < leafOut; ++ i)
|
---|
1260 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
1261 |
|
---|
1262 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
1263 | {
|
---|
1264 | KdLeaf *leaf = kdLeaves[i];
|
---|
1265 | RayContainer vcRays;
|
---|
1266 |
|
---|
1267 | cout << "creating output for view cell " << i << " ... ";
|
---|
1268 | #if 0
|
---|
1269 | // check whether we can add the current ray to the output rays
|
---|
1270 | for (int k = 0; k < raysOut; ++ k)
|
---|
1271 | {
|
---|
1272 | Ray *ray = sampleRays[k];
|
---|
1273 |
|
---|
1274 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
1275 | {
|
---|
1276 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
1277 |
|
---|
1278 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
1279 | {
|
---|
1280 | vcRays.push_back(ray);
|
---|
1281 | }
|
---|
1282 | }
|
---|
1283 | }
|
---|
1284 | #endif
|
---|
1285 | Intersectable::NewMail();
|
---|
1286 |
|
---|
1287 | ViewCell *vc = leaf->mViewCell;
|
---|
1288 |
|
---|
1289 | //bspLeaves[j]->Mail();
|
---|
1290 | char s[64]; sprintf(s, "kd-pvs%04d.x3d", i);
|
---|
1291 |
|
---|
1292 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1293 | exporter->SetFilled();
|
---|
1294 |
|
---|
1295 | exporter->SetWireframe();
|
---|
1296 | //exporter->SetFilled();
|
---|
1297 |
|
---|
1298 | Material m;//= RandomMaterial();
|
---|
1299 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
1300 | exporter->SetForcedMaterial(m);
|
---|
1301 |
|
---|
1302 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
1303 | exporter->ExportBox(box);
|
---|
1304 |
|
---|
1305 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
1306 | << ", piercing rays=" << (int)vcRays.size() << endl;
|
---|
1307 |
|
---|
1308 | // export rays piercing this view cell
|
---|
1309 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
1310 |
|
---|
1311 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1312 | exporter->SetForcedMaterial(m);
|
---|
1313 |
|
---|
1314 | // exporter->SetWireframe();
|
---|
1315 | exporter->SetFilled();
|
---|
1316 |
|
---|
1317 | ObjectPvsMap::iterator it, it_end = vc->GetPvs().mEntries.end();
|
---|
1318 | // output PVS of view cell
|
---|
1319 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
1320 | {
|
---|
1321 | Intersectable *intersect = (*it).first;
|
---|
1322 | if (!intersect->Mailed())
|
---|
1323 | {
|
---|
1324 | exporter->ExportIntersectable(intersect);
|
---|
1325 | intersect->Mail();
|
---|
1326 | }
|
---|
1327 | }
|
---|
1328 |
|
---|
1329 | DEL_PTR(exporter);
|
---|
1330 | cout << "finished" << endl;
|
---|
1331 | }
|
---|
1332 |
|
---|
1333 | DEL_PTR(rays);
|
---|
1334 | }
|
---|
1335 | else // using kd PVS of objects
|
---|
1336 | {
|
---|
1337 | for (int i = 0; i < limit; ++ i)
|
---|
1338 | {
|
---|
1339 | VssRay *ray = sampleRays[i];
|
---|
1340 |
|
---|
1341 | // check whether we can add this to the rays
|
---|
1342 | for (int j = 0; j < pvsOut; j++)
|
---|
1343 | {
|
---|
1344 | if (objects[j] == ray->mTerminationObject)
|
---|
1345 | {
|
---|
1346 | rays[j].push_back(ray);
|
---|
1347 | }
|
---|
1348 | }
|
---|
1349 | }
|
---|
1350 |
|
---|
1351 | if (exportRays)
|
---|
1352 | {
|
---|
1353 | Exporter *exporter = NULL;
|
---|
1354 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
1355 | exporter->SetWireframe();
|
---|
1356 | exporter->ExportKdTree(*mKdTree);
|
---|
1357 |
|
---|
1358 | for (i=0; i < pvsOut; i++)
|
---|
1359 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
1360 |
|
---|
1361 | exporter->SetFilled();
|
---|
1362 |
|
---|
1363 | delete exporter;
|
---|
1364 | }
|
---|
1365 |
|
---|
1366 | for (int k=0; k < pvsOut; k++)
|
---|
1367 | {
|
---|
1368 | Intersectable *object = objects[k];
|
---|
1369 | char s[64];
|
---|
1370 | sprintf(s, "sample-pvs%04d.x3d", k);
|
---|
1371 |
|
---|
1372 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1373 | exporter->SetWireframe();
|
---|
1374 |
|
---|
1375 | KdPvsMap::iterator i = object->mKdPvs.mEntries.begin();
|
---|
1376 | Intersectable::NewMail();
|
---|
1377 |
|
---|
1378 | // avoid adding the object to the list
|
---|
1379 | object->Mail();
|
---|
1380 | ObjectContainer visibleObjects;
|
---|
1381 |
|
---|
1382 | for (; i != object->mKdPvs.mEntries.end(); i++)
|
---|
1383 | {
|
---|
1384 | KdNode *node = (*i).first;
|
---|
1385 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
1386 |
|
---|
1387 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
1388 | }
|
---|
1389 |
|
---|
1390 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
1391 | exporter->SetFilled();
|
---|
1392 |
|
---|
1393 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
1394 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
1395 |
|
---|
1396 | Material m;
|
---|
1397 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1398 | exporter->SetForcedMaterial(m);
|
---|
1399 | exporter->ExportIntersectable(object);
|
---|
1400 |
|
---|
1401 | delete exporter;
|
---|
1402 | }
|
---|
1403 | }
|
---|
1404 | }
|
---|
1405 |
|
---|
1406 |
|
---|
1407 | void KdViewCellsManager::ExportColor(Exporter *exporter,
|
---|
1408 | ViewCell *vc) const
|
---|
1409 | {
|
---|
1410 | // TODO
|
---|
1411 | }
|
---|
1412 |
|
---|
1413 |
|
---|
1414 | void KdViewCellsManager::ExportVcGeometry(Exporter *exporter,
|
---|
1415 | ViewCell *vc) const
|
---|
1416 | {
|
---|
1417 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(vc);
|
---|
1418 | vector<KdLeaf *>::const_iterator it, it_end = kdVc->mLeaves.end();
|
---|
1419 |
|
---|
1420 | for (it = kdVc->mLeaves.begin(); it != it_end; ++ it)
|
---|
1421 | exporter->ExportBox(mKdTree->GetBox(*it));
|
---|
1422 | }
|
---|
1423 |
|
---|
1424 |
|
---|
1425 | int KdViewCellsManager::GetType() const
|
---|
1426 | {
|
---|
1427 | return ViewCellsManager::KD;
|
---|
1428 | }
|
---|
1429 |
|
---|
1430 |
|
---|
1431 |
|
---|
1432 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
1433 | {
|
---|
1434 | KdNode *node = leaf;
|
---|
1435 |
|
---|
1436 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
1437 | node = node->mParent;
|
---|
1438 | return node;
|
---|
1439 | }
|
---|
1440 |
|
---|
1441 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
1442 | const Vector3 &termination,
|
---|
1443 | ViewCellContainer &viewcells)
|
---|
1444 | {
|
---|
1445 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
1446 | }
|
---|
1447 |
|
---|
1448 |
|
---|
1449 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
1450 | {
|
---|
1451 | // TODO
|
---|
1452 | }
|
---|
1453 |
|
---|
1454 | /**********************************************************************/
|
---|
1455 | /* VspKdViewCellsManager implementation */
|
---|
1456 | /**********************************************************************/
|
---|
1457 |
|
---|
1458 |
|
---|
1459 | VspKdViewCellsManager::VspKdViewCellsManager(VspKdTree *vspKdTree,
|
---|
1460 | int constructionSamples):
|
---|
1461 | ViewCellsManager(constructionSamples),
|
---|
1462 | mVspKdTree(vspKdTree)
|
---|
1463 | {
|
---|
1464 | mVspKdTree->SetViewCellsManager(this);
|
---|
1465 | }
|
---|
1466 |
|
---|
1467 | float VspKdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
1468 | {
|
---|
1469 | // volume or area substitutes for view point probability
|
---|
1470 | #if 0
|
---|
1471 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
1472 | #else
|
---|
1473 | return GetArea(viewCell) / GetAccVcArea();
|
---|
1474 | #endif
|
---|
1475 | }
|
---|
1476 |
|
---|
1477 |
|
---|
1478 | float VspKdViewCellsManager::GetRendercost(ViewCell *viewCell, float objRendercost) const
|
---|
1479 | {
|
---|
1480 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
1481 | }
|
---|
1482 |
|
---|
1483 |
|
---|
1484 | void VspKdViewCellsManager::CollectViewCells()
|
---|
1485 | {
|
---|
1486 | mVspKdTree->CollectViewCells(mViewCells);
|
---|
1487 | }
|
---|
1488 |
|
---|
1489 | int VspKdViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
1490 | const VssRayContainer &rays)
|
---|
1491 | {
|
---|
1492 | // if view cells already constructed
|
---|
1493 | if (ViewCellsConstructed())
|
---|
1494 | return 0;
|
---|
1495 |
|
---|
1496 | VssRayContainer constructionRays;
|
---|
1497 | VssRayContainer savedRays;
|
---|
1498 |
|
---|
1499 | GetRaySets(rays,
|
---|
1500 | mConstructionSamples,
|
---|
1501 | constructionRays,
|
---|
1502 | &savedRays);
|
---|
1503 |
|
---|
1504 | Debug << "constructing vsp kd tree using "
|
---|
1505 | << (int)constructionRays.size() << " samples" << endl;
|
---|
1506 |
|
---|
1507 | mVspKdTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
1508 | Debug << mVspKdTree->GetStatistics() << endl;
|
---|
1509 |
|
---|
1510 | // export leaf building blocks
|
---|
1511 | ExportLeaves(objects, rays);
|
---|
1512 |
|
---|
1513 | // finally merge kd leaf building blocks to view cells
|
---|
1514 | const int merged = mVspKdTree->MergeViewCells(rays);
|
---|
1515 |
|
---|
1516 | // collapse siblings belonging to the same view cell
|
---|
1517 | mVspKdTree->RefineViewCells(rays);
|
---|
1518 |
|
---|
1519 | // collapse siblings belonging to the same view cell
|
---|
1520 | mVspKdTree->CollapseTree();
|
---|
1521 |
|
---|
1522 | // evaluale view cell stats
|
---|
1523 | ResetViewCells();
|
---|
1524 |
|
---|
1525 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
1526 |
|
---|
1527 | long startTime = GetTime();
|
---|
1528 | // recast rest of rays
|
---|
1529 | ComputeSampleContributions(savedRays);
|
---|
1530 |
|
---|
1531 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
1532 | << " secs" << endl;
|
---|
1533 |
|
---|
1534 | return merged;
|
---|
1535 | }
|
---|
1536 |
|
---|
1537 | bool VspKdViewCellsManager::ViewCellsConstructed() const
|
---|
1538 | {
|
---|
1539 | return mVspKdTree->GetRoot() != NULL;
|
---|
1540 | }
|
---|
1541 |
|
---|
1542 |
|
---|
1543 | ViewCell *VspKdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
1544 | {
|
---|
1545 | return new VspKdViewCell(mesh);
|
---|
1546 | }
|
---|
1547 |
|
---|
1548 | int VspKdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
1549 | const VssRayContainer &rays)
|
---|
1550 | {
|
---|
1551 | if (!ViewCellsConstructed())
|
---|
1552 | return 0;
|
---|
1553 |
|
---|
1554 | // recalculate stats
|
---|
1555 | EvaluateViewCellsStats();
|
---|
1556 |
|
---|
1557 | return 0;
|
---|
1558 | }
|
---|
1559 |
|
---|
1560 |
|
---|
1561 | void VspKdViewCellsManager::ExportLeaves(const ObjectContainer &objects,
|
---|
1562 | const VssRayContainer &sampleRays)
|
---|
1563 | {
|
---|
1564 | if (!ViewCellsConstructed())
|
---|
1565 | return;
|
---|
1566 |
|
---|
1567 | //-- export leaf building blocks
|
---|
1568 | Exporter *exporter = Exporter::GetExporter("vspkdtree.x3d");
|
---|
1569 | if (!exporter)
|
---|
1570 | return;
|
---|
1571 |
|
---|
1572 | //exporter->SetWireframe();
|
---|
1573 | //exporter->ExportVspKdTree(*mVspKdTree, mVspKdTree->GetStatistics().maxPvsSize);
|
---|
1574 | exporter->ExportVspKdTree(*mVspKdTree);
|
---|
1575 |
|
---|
1576 | if (mExportGeometry)
|
---|
1577 | exporter->ExportGeometry(objects);
|
---|
1578 |
|
---|
1579 | if (mExportRays)
|
---|
1580 | {
|
---|
1581 | const float prob = (float)mVisualizationSamples
|
---|
1582 | / ((float)sampleRays.size() + Limits::Small);
|
---|
1583 |
|
---|
1584 | exporter->SetWireframe();
|
---|
1585 |
|
---|
1586 | //-- collect uniformly distributed rays
|
---|
1587 | VssRayContainer rays;
|
---|
1588 |
|
---|
1589 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
1590 | {
|
---|
1591 | if (RandomValue(0,1) < prob)
|
---|
1592 | rays.push_back(sampleRays[i]);
|
---|
1593 | }
|
---|
1594 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
1595 | }
|
---|
1596 |
|
---|
1597 | delete exporter;
|
---|
1598 | }
|
---|
1599 |
|
---|
1600 | void VspKdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
1601 | const VssRayContainer &sampleRays)
|
---|
1602 | {
|
---|
1603 | if (!ViewCellsConstructed())
|
---|
1604 | return;
|
---|
1605 |
|
---|
1606 | //-- export single view cells
|
---|
1607 | for (int i = 0; i < 10; ++ i)
|
---|
1608 | {
|
---|
1609 | char s[64];
|
---|
1610 | sprintf(s, "vsp_viewcell%04d.x3d", i);
|
---|
1611 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1612 | const int idx =
|
---|
1613 | (int)RandomValue(0.0, (Real)((int)mViewCells.size() - 1));
|
---|
1614 |
|
---|
1615 | VspKdViewCell *vc = dynamic_cast<VspKdViewCell *>(mViewCells[idx]);
|
---|
1616 |
|
---|
1617 | cout << "Output view cell " << i << " with pvs size " << vc->GetPvs().GetSize() << endl;
|
---|
1618 | Debug << "Output view cell " << i << " with pvs size " << vc->GetPvs().GetSize() << endl;
|
---|
1619 | //-- export geometry
|
---|
1620 | Material m;
|
---|
1621 | m.mDiffuseColor = RgbColor(0, 1, 1);
|
---|
1622 |
|
---|
1623 | exporter->SetForcedMaterial(m);
|
---|
1624 | exporter->SetWireframe();
|
---|
1625 |
|
---|
1626 | ExportVcGeometry(exporter, vc);
|
---|
1627 |
|
---|
1628 | //-- export stored rays
|
---|
1629 | if (mExportRays)
|
---|
1630 | {
|
---|
1631 | vector<VspKdLeaf *>::const_iterator it,
|
---|
1632 | it_end = vc->mLeaves.end();
|
---|
1633 |
|
---|
1634 | for (it = vc->mLeaves.begin(); it != it_end; ++ it)
|
---|
1635 | {
|
---|
1636 | VspKdLeaf *leaf = *it;
|
---|
1637 | AxisAlignedBox3 box = mVspKdTree->GetBBox(leaf);
|
---|
1638 |
|
---|
1639 | VssRayContainer vssRays;
|
---|
1640 |
|
---|
1641 | VssRayContainer castRays;
|
---|
1642 | VssRayContainer initRays;
|
---|
1643 |
|
---|
1644 | leaf->GetRays(vssRays);
|
---|
1645 |
|
---|
1646 | VssRayContainer::const_iterator it, it_end = vssRays.end();
|
---|
1647 | const float prop = 200.0f / (float)vssRays.size();
|
---|
1648 |
|
---|
1649 | for (it = vssRays.begin(); it != it_end; ++ it)
|
---|
1650 | {
|
---|
1651 | if (Random(1) < prop)
|
---|
1652 | if ((*it)->mTerminationObject == NULL)
|
---|
1653 | castRays.push_back(*it);
|
---|
1654 | else
|
---|
1655 | initRays.push_back(*it);
|
---|
1656 | }
|
---|
1657 |
|
---|
1658 | exporter->ExportRays(castRays, RgbColor(1, 0, 0));
|
---|
1659 | exporter->ExportRays(initRays, RgbColor(0, 1, 0));
|
---|
1660 | }
|
---|
1661 | }
|
---|
1662 |
|
---|
1663 | //-- output PVS of view cell
|
---|
1664 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1665 | exporter->SetForcedMaterial(m);
|
---|
1666 |
|
---|
1667 | Intersectable::NewMail();
|
---|
1668 |
|
---|
1669 | ObjectPvsMap::const_iterator it,
|
---|
1670 | it_end = vc->GetPvs().mEntries.end();
|
---|
1671 |
|
---|
1672 | exporter->SetFilled();
|
---|
1673 |
|
---|
1674 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
1675 | {
|
---|
1676 | Intersectable *intersect = (*it).first;
|
---|
1677 |
|
---|
1678 | if (!intersect->Mailed())
|
---|
1679 | {
|
---|
1680 | Material m = RandomMaterial();
|
---|
1681 | exporter->SetForcedMaterial(m);
|
---|
1682 |
|
---|
1683 | exporter->ExportIntersectable(intersect);
|
---|
1684 | intersect->Mail();
|
---|
1685 | }
|
---|
1686 | }
|
---|
1687 |
|
---|
1688 | delete exporter;
|
---|
1689 | }
|
---|
1690 |
|
---|
1691 | //-- export final view cells
|
---|
1692 | Exporter *exporter = Exporter::GetExporter("vspkdtree_merged.x3d");
|
---|
1693 |
|
---|
1694 | //if (exportGeometry) exporter->SetWireframe();
|
---|
1695 | //else exporter->SetFilled();
|
---|
1696 |
|
---|
1697 | ExportViewCellsForViz(exporter);
|
---|
1698 |
|
---|
1699 | if (mExportGeometry)
|
---|
1700 | {
|
---|
1701 | exporter->SetFilled();
|
---|
1702 | exporter->ExportGeometry(objects);
|
---|
1703 | }
|
---|
1704 |
|
---|
1705 | if (mExportRays)
|
---|
1706 | {
|
---|
1707 | const float prob = (float)mVisualizationSamples
|
---|
1708 | / ((float)sampleRays.size() + Limits::Small);
|
---|
1709 |
|
---|
1710 | exporter->SetWireframe();
|
---|
1711 |
|
---|
1712 | VssRayContainer rays;
|
---|
1713 |
|
---|
1714 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
1715 | {
|
---|
1716 | if (RandomValue(0,1) < prob)
|
---|
1717 | rays.push_back(sampleRays[i]);
|
---|
1718 | }
|
---|
1719 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
1720 | }
|
---|
1721 |
|
---|
1722 | delete exporter;
|
---|
1723 | }
|
---|
1724 |
|
---|
1725 | int VspKdViewCellsManager::GetType() const
|
---|
1726 | {
|
---|
1727 | return VSP_KD;
|
---|
1728 | }
|
---|
1729 |
|
---|
1730 |
|
---|
1731 | int VspKdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
1732 | const Vector3 &termination,
|
---|
1733 | ViewCellContainer &viewcells)
|
---|
1734 | {
|
---|
1735 | return mVspKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
1736 | }
|
---|
1737 |
|
---|
1738 |
|
---|
1739 | void VspKdViewCellsManager::ExportColor(Exporter *exporter,
|
---|
1740 | ViewCell *vc) const
|
---|
1741 | {
|
---|
1742 | if (mColorCode == 0) // Random color
|
---|
1743 | return;
|
---|
1744 |
|
---|
1745 | float importance = 0;
|
---|
1746 |
|
---|
1747 | switch (mColorCode)
|
---|
1748 | {
|
---|
1749 | case 1: // pvs
|
---|
1750 | {
|
---|
1751 | importance = (float)vc->GetPvs().GetSize() /
|
---|
1752 | (float)mViewCellsStats.maxPvs;
|
---|
1753 | }
|
---|
1754 | break;
|
---|
1755 | case 2: // merges
|
---|
1756 | {
|
---|
1757 | VspKdViewCell *vspKdVc = dynamic_cast<VspKdViewCell *>(vc);
|
---|
1758 |
|
---|
1759 | importance = (float)vspKdVc->mLeaves.size() /
|
---|
1760 | (float)mViewCellsStats.maxLeaves;
|
---|
1761 | }
|
---|
1762 | break;
|
---|
1763 | case 3: // merged tree depth difference
|
---|
1764 | {
|
---|
1765 | //importance = (float)GetMaxTreeDiff(vc) /
|
---|
1766 | // (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
1767 | }
|
---|
1768 | break;
|
---|
1769 | default:
|
---|
1770 | break;
|
---|
1771 | }
|
---|
1772 |
|
---|
1773 | Material m;
|
---|
1774 | m.mDiffuseColor.b = 1.0f;
|
---|
1775 | m.mDiffuseColor.r = importance;
|
---|
1776 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
1777 | //Debug << "importance: " << importance << endl;
|
---|
1778 | exporter->SetForcedMaterial(m);
|
---|
1779 | }
|
---|
1780 |
|
---|
1781 |
|
---|
1782 | void VspKdViewCellsManager::ExportVcGeometry(Exporter *exporter,
|
---|
1783 | ViewCell *vc) const
|
---|
1784 | {
|
---|
1785 | VspKdViewCell *kdVc = dynamic_cast<VspKdViewCell *>(vc);
|
---|
1786 | vector<VspKdLeaf *>::const_iterator it, it_end = kdVc->mLeaves.end();
|
---|
1787 |
|
---|
1788 | Mesh m;
|
---|
1789 | for (it = kdVc->mLeaves.begin(); it != it_end; ++ it)
|
---|
1790 | {
|
---|
1791 | mVspKdTree->GetBBox(*it).AddBoxToMesh(&m);
|
---|
1792 | }
|
---|
1793 |
|
---|
1794 | exporter->ExportMesh(&m);
|
---|
1795 | }
|
---|
1796 |
|
---|
1797 |
|
---|
1798 | void VspKdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
1799 | {
|
---|
1800 | //TODO
|
---|
1801 | }
|
---|
1802 |
|
---|
1803 | /**************************************************************************/
|
---|
1804 | /* VspBspViewCellsManager implementation */
|
---|
1805 | /**************************************************************************/
|
---|
1806 |
|
---|
1807 |
|
---|
1808 | VspBspViewCellsManager::VspBspViewCellsManager(VspBspTree *vspBspTree,
|
---|
1809 | int constructionSamples):
|
---|
1810 | ViewCellsManager(constructionSamples),
|
---|
1811 | mVspBspTree(vspBspTree)
|
---|
1812 | {
|
---|
1813 | mVspBspTree->SetViewCellsManager(this);
|
---|
1814 | }
|
---|
1815 |
|
---|
1816 |
|
---|
1817 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
1818 | {
|
---|
1819 | }
|
---|
1820 |
|
---|
1821 |
|
---|
1822 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
1823 | {
|
---|
1824 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
1825 | return GetArea(viewCell) / GetAccVcArea();
|
---|
1826 | else
|
---|
1827 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
1828 | }
|
---|
1829 |
|
---|
1830 |
|
---|
1831 | void VspBspViewCellsManager::CollectViewCells()
|
---|
1832 | {
|
---|
1833 | mVspBspTree->CollectViewCells(mViewCells, false);
|
---|
1834 | }
|
---|
1835 |
|
---|
1836 |
|
---|
1837 | float VspBspViewCellsManager::GetRendercost(ViewCell *viewCell,
|
---|
1838 | float objRendercost) const
|
---|
1839 | {
|
---|
1840 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
1841 | }
|
---|
1842 |
|
---|
1843 |
|
---|
1844 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
1845 | {
|
---|
1846 | return mVspBspTree->GetRoot() != NULL;
|
---|
1847 | }
|
---|
1848 |
|
---|
1849 |
|
---|
1850 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
1851 | {
|
---|
1852 | return new BspViewCell(mesh);
|
---|
1853 | }
|
---|
1854 |
|
---|
1855 | int VspBspViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
1856 | const VssRayContainer &rays)
|
---|
1857 | {
|
---|
1858 | // if view cells were already constructed
|
---|
1859 | if (ViewCellsConstructed())
|
---|
1860 | return 0;
|
---|
1861 |
|
---|
1862 | Debug << "Constructing bsp view cells" << endl;
|
---|
1863 |
|
---|
1864 | int sampleContributions = 0;
|
---|
1865 |
|
---|
1866 | VssRayContainer sampleRays;
|
---|
1867 |
|
---|
1868 | int limit = min (mConstructionSamples, (int)rays.size());
|
---|
1869 |
|
---|
1870 | VssRayContainer constructionRays;
|
---|
1871 | VssRayContainer savedRays;
|
---|
1872 |
|
---|
1873 | Debug << "construction samples: " << mConstructionSamples << " rays: " << (int)rays.size() << endl;
|
---|
1874 | GetRaySets(rays, mConstructionSamples, constructionRays, &savedRays);
|
---|
1875 |
|
---|
1876 | Debug << "construction rays: " << (int)constructionRays.size() << endl;
|
---|
1877 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
1878 |
|
---|
1879 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
1880 |
|
---|
1881 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
1882 |
|
---|
1883 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
1884 |
|
---|
1885 | // collapse invalid regions
|
---|
1886 | cout << "collapsing invalid tree regions ... ";
|
---|
1887 | long startTime = GetTime();
|
---|
1888 | int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
1889 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3 << " seconds" << endl;
|
---|
1890 | cout << "finished" << endl;
|
---|
1891 |
|
---|
1892 | cout << "reseting view cell stats ... ";
|
---|
1893 | ResetViewCells();
|
---|
1894 | cout << "finished" << endl;
|
---|
1895 |
|
---|
1896 | Debug << "\nView cells after construction:\n" << mViewCellsStats << endl;
|
---|
1897 |
|
---|
1898 | if (1) // export initial view cells
|
---|
1899 | {
|
---|
1900 | cout << "exporting initial view cells (=leaves) ... ";
|
---|
1901 | Exporter *exporter = Exporter::GetExporter("view_cells.x3d");
|
---|
1902 |
|
---|
1903 | if (exporter)
|
---|
1904 | {
|
---|
1905 | //exporter->SetWireframe();
|
---|
1906 | exporter->SetFilled();
|
---|
1907 | ExportViewCellsForViz(exporter);
|
---|
1908 |
|
---|
1909 | if (0 && mExportRays)
|
---|
1910 | exporter->ExportRays(rays, RgbColor(1, 1, 1));
|
---|
1911 |
|
---|
1912 | if (mExportGeometry)
|
---|
1913 | exporter->ExportGeometry(objects);
|
---|
1914 |
|
---|
1915 | delete exporter;
|
---|
1916 | }
|
---|
1917 | cout << "finished" << endl;
|
---|
1918 | }
|
---|
1919 |
|
---|
1920 | startTime = GetTime();
|
---|
1921 |
|
---|
1922 | // reset view cells and stats
|
---|
1923 | ResetViewCells();
|
---|
1924 |
|
---|
1925 | cout << "Computing remaining ray contributions ... ";
|
---|
1926 | // recast rest of rays
|
---|
1927 | ComputeSampleContributions(savedRays);
|
---|
1928 | cout << "finished" << endl;
|
---|
1929 |
|
---|
1930 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
1931 | << " secs" << endl;
|
---|
1932 |
|
---|
1933 | cout << "construction finished" << endl;
|
---|
1934 |
|
---|
1935 | return sampleContributions;
|
---|
1936 | }
|
---|
1937 |
|
---|
1938 |
|
---|
1939 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
1940 | const ObjectContainer &objects)
|
---|
1941 | {
|
---|
1942 | //-- post processing of bsp view cells
|
---|
1943 | int vcSize = 0;
|
---|
1944 | int pvsSize = 0;
|
---|
1945 |
|
---|
1946 | mRenderer->RenderScene();
|
---|
1947 | SimulationStatistics ss;
|
---|
1948 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
1949 | Debug << ss << endl;
|
---|
1950 |
|
---|
1951 | //-- merge or subdivide view cells
|
---|
1952 | int merged = 0;
|
---|
1953 |
|
---|
1954 | cout << "starting merge using " << mPostProcessSamples << " samples ... " << endl;
|
---|
1955 | long startTime = GetTime();
|
---|
1956 |
|
---|
1957 | // TODO: should be done BEFORE the ray casting
|
---|
1958 | merged = mVspBspTree->MergeViewCells(rays, objects);
|
---|
1959 |
|
---|
1960 | //-- stats and visualizations
|
---|
1961 | cout << "finished merging" << endl;
|
---|
1962 | cout << "merged " << merged << " view cells in "
|
---|
1963 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
1964 |
|
---|
1965 | Debug << "Postprocessing: Merged " << merged << " view cells in "
|
---|
1966 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
1967 |
|
---|
1968 | cout << "reseting view cell stats ... ";
|
---|
1969 | ResetViewCells();
|
---|
1970 | cout << "finished" << endl;
|
---|
1971 |
|
---|
1972 | //BspLeaf::NewMail();
|
---|
1973 | if (1) // export merged view cells
|
---|
1974 | {
|
---|
1975 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.x3d");
|
---|
1976 | Debug << "\nView cells after merge:\n" << mViewCellsStats << endl;
|
---|
1977 |
|
---|
1978 | cout << "exporting view cells after merge ... ";
|
---|
1979 |
|
---|
1980 | if (exporter)
|
---|
1981 | {
|
---|
1982 | if (1)
|
---|
1983 | exporter->SetWireframe();
|
---|
1984 | else
|
---|
1985 | exporter->SetFilled();
|
---|
1986 | ExportViewCellsForViz(exporter);
|
---|
1987 |
|
---|
1988 | if (mExportGeometry)
|
---|
1989 | {
|
---|
1990 | Material m;
|
---|
1991 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
1992 | exporter->SetForcedMaterial(m);
|
---|
1993 | exporter->SetFilled();
|
---|
1994 |
|
---|
1995 | exporter->ExportGeometry(objects);
|
---|
1996 | }
|
---|
1997 |
|
---|
1998 | delete exporter;
|
---|
1999 | }
|
---|
2000 | cout << "finished" << endl;
|
---|
2001 | }
|
---|
2002 | }
|
---|
2003 |
|
---|
2004 |
|
---|
2005 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays)
|
---|
2006 | {
|
---|
2007 | Debug << "render time before refine:" << endl;
|
---|
2008 | mRenderer->RenderScene();
|
---|
2009 | SimulationStatistics ss;
|
---|
2010 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
2011 | Debug << ss << endl;
|
---|
2012 |
|
---|
2013 | cout << "Refining the merged view cells ... ";
|
---|
2014 | long startTime = GetTime();
|
---|
2015 |
|
---|
2016 | // refining the merged view cells
|
---|
2017 | const int refined = mVspBspTree->RefineViewCells(rays);
|
---|
2018 |
|
---|
2019 | //-- stats and visualizations
|
---|
2020 | cout << "finished" << endl;
|
---|
2021 | cout << "refined " << refined << " view cells in "
|
---|
2022 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
2023 |
|
---|
2024 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
2025 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
2026 | }
|
---|
2027 |
|
---|
2028 |
|
---|
2029 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
2030 | const VssRayContainer &rays)
|
---|
2031 | {
|
---|
2032 | if (!ViewCellsConstructed())
|
---|
2033 | {
|
---|
2034 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
2035 | return 0;
|
---|
2036 | }
|
---|
2037 |
|
---|
2038 |
|
---|
2039 | // view cells already finished before post processing step (i.e. because they were loaded)
|
---|
2040 | if (mViewCellsFinished)
|
---|
2041 | {
|
---|
2042 | FinalizeViewCells(true);
|
---|
2043 | EvaluateViewCellsStats();
|
---|
2044 | return 0;
|
---|
2045 | }
|
---|
2046 |
|
---|
2047 |
|
---|
2048 | // check if new view cells turned invalid
|
---|
2049 | mVspBspTree->ValidateTree();
|
---|
2050 | ResetViewCells();
|
---|
2051 |
|
---|
2052 |
|
---|
2053 | VssRayContainer postProcessRays;
|
---|
2054 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
2055 |
|
---|
2056 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
2057 |
|
---|
2058 | Debug << "\nview cell partition after sampling:\n" << mViewCellsStats << endl << endl;
|
---|
2059 |
|
---|
2060 | // should maybe be done here to allow merge working with area or volume
|
---|
2061 | // and to correct the rendering statistics
|
---|
2062 | if (0)
|
---|
2063 | {
|
---|
2064 | FinalizeViewCells(false);
|
---|
2065 | }
|
---|
2066 |
|
---|
2067 | //-- merge the individual view cells
|
---|
2068 | MergeViewCells(postProcessRays, objects);
|
---|
2069 | //-- refines the merged view cells
|
---|
2070 | RefineViewCells(postProcessRays);
|
---|
2071 | // collapse sibling leaves that share the same view cell
|
---|
2072 | mVspBspTree->CollapseTree();
|
---|
2073 |
|
---|
2074 | ResetViewCells();
|
---|
2075 |
|
---|
2076 | // real meshes are only contructed only at this stage
|
---|
2077 | FinalizeViewCells(true);
|
---|
2078 |
|
---|
2079 | // write view cells to disc
|
---|
2080 | if (mExportViewCells)
|
---|
2081 | {
|
---|
2082 | char buff[100];
|
---|
2083 | environment->GetStringValue("ViewCells.filename", buff);
|
---|
2084 | string vcFilename(buff);
|
---|
2085 |
|
---|
2086 | ExportViewCells(buff);
|
---|
2087 | }
|
---|
2088 |
|
---|
2089 | return 0;
|
---|
2090 | }
|
---|
2091 |
|
---|
2092 |
|
---|
2093 | int VspBspViewCellsManager::GetType() const
|
---|
2094 | {
|
---|
2095 | return VSP_BSP;
|
---|
2096 | }
|
---|
2097 |
|
---|
2098 |
|
---|
2099 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
2100 | {
|
---|
2101 | if (!ViewCellsConstructed())
|
---|
2102 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
2103 |
|
---|
2104 | // TODO: set reasonable limit
|
---|
2105 | const int limit = 20;
|
---|
2106 |
|
---|
2107 | for (int i = 0; i < limit; ++ i)
|
---|
2108 | {
|
---|
2109 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
2110 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
2111 | {
|
---|
2112 | return true;
|
---|
2113 | }
|
---|
2114 | }
|
---|
2115 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
2116 | return false;
|
---|
2117 | }
|
---|
2118 |
|
---|
2119 |
|
---|
2120 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
2121 | {
|
---|
2122 | return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
2123 | mVspBspTree->ViewPointValid(viewPoint);
|
---|
2124 | }
|
---|
2125 |
|
---|
2126 |
|
---|
2127 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
2128 | const VssRayContainer &sampleRays)
|
---|
2129 | {
|
---|
2130 | if (!ViewCellsConstructed())
|
---|
2131 | return;
|
---|
2132 |
|
---|
2133 | VssRayContainer visRays;
|
---|
2134 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
2135 |
|
---|
2136 | if (1) // export view cells
|
---|
2137 | {
|
---|
2138 | cout << "exporting view cells after post process ... ";
|
---|
2139 | Exporter *exporter = Exporter::GetExporter("final_view_cells.x3d");
|
---|
2140 |
|
---|
2141 | if (exporter)
|
---|
2142 | {
|
---|
2143 | if (1)
|
---|
2144 | {
|
---|
2145 | exporter->SetWireframe();
|
---|
2146 | exporter->ExportBox(mViewSpaceBox);
|
---|
2147 | exporter->SetFilled();
|
---|
2148 | }
|
---|
2149 |
|
---|
2150 | if (mExportGeometry)
|
---|
2151 | {
|
---|
2152 | exporter->ExportGeometry(objects);
|
---|
2153 | }
|
---|
2154 |
|
---|
2155 | // export rays
|
---|
2156 | if (mExportRays)
|
---|
2157 | {
|
---|
2158 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
2159 | }
|
---|
2160 |
|
---|
2161 | ExportViewCellsForViz(exporter);
|
---|
2162 | delete exporter;
|
---|
2163 | }
|
---|
2164 | }
|
---|
2165 |
|
---|
2166 | // export shuffled view cells
|
---|
2167 | if (1)
|
---|
2168 | {
|
---|
2169 | cout << "exporting shuffled view cells ...";
|
---|
2170 |
|
---|
2171 | Exporter *exporter = Exporter::GetExporter("shuffled_view_cells.x3d");
|
---|
2172 | if (exporter)
|
---|
2173 | {
|
---|
2174 | if (1)
|
---|
2175 | {
|
---|
2176 | exporter->SetWireframe();
|
---|
2177 | exporter->ExportBox(mViewSpaceBox);
|
---|
2178 | exporter->SetFilled();
|
---|
2179 | }
|
---|
2180 |
|
---|
2181 | if (mExportGeometry)
|
---|
2182 | {
|
---|
2183 | exporter->ExportGeometry(objects);
|
---|
2184 | }
|
---|
2185 |
|
---|
2186 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
2187 |
|
---|
2188 | Material vm, lm;
|
---|
2189 |
|
---|
2190 | for (vit = mViewCells.begin(); vit != mViewCells.end(); ++ vit)
|
---|
2191 | {
|
---|
2192 | BspViewCell *vc = dynamic_cast<BspViewCell *>(*vit);
|
---|
2193 |
|
---|
2194 | vm = RandomMaterial();
|
---|
2195 |
|
---|
2196 | lm = vm;
|
---|
2197 |
|
---|
2198 | vm.mDiffuseColor.r -= 0.45f;
|
---|
2199 | vm.mDiffuseColor.g -= 0.45f;
|
---|
2200 | vm.mDiffuseColor.b -= 0.45f;
|
---|
2201 |
|
---|
2202 | vector<BspLeaf *>::const_iterator lit, lit_end = vc->mLeaves.end();
|
---|
2203 |
|
---|
2204 | for (lit = vc->mLeaves.begin(); lit != lit_end; ++ lit)
|
---|
2205 | {
|
---|
2206 | BspLeaf *leaf = *lit;
|
---|
2207 |
|
---|
2208 | if (leaf->Mailed())
|
---|
2209 | exporter->SetForcedMaterial(lm);
|
---|
2210 | else
|
---|
2211 | exporter->SetForcedMaterial(vm);
|
---|
2212 |
|
---|
2213 | BspNodeGeometry geom;
|
---|
2214 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
2215 | exporter->ExportPolygons(geom.mPolys);
|
---|
2216 | }
|
---|
2217 | }
|
---|
2218 |
|
---|
2219 | delete exporter;
|
---|
2220 | }
|
---|
2221 |
|
---|
2222 |
|
---|
2223 | cout << "finished" << endl;
|
---|
2224 | }
|
---|
2225 |
|
---|
2226 | //-- visualization of the BSP splits
|
---|
2227 | bool exportSplits = false;
|
---|
2228 | environment->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
2229 |
|
---|
2230 | if (exportSplits)
|
---|
2231 | {
|
---|
2232 | cout << "exporting splits ... ";
|
---|
2233 | ExportSplits(objects, visRays);
|
---|
2234 | cout << "finished" << endl;
|
---|
2235 | }
|
---|
2236 |
|
---|
2237 | //-- export single view cells
|
---|
2238 | ExportBspPvs(objects, visRays);
|
---|
2239 | }
|
---|
2240 |
|
---|
2241 |
|
---|
2242 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
2243 | const VssRayContainer &rays)
|
---|
2244 | {
|
---|
2245 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
2246 |
|
---|
2247 | if (exporter)
|
---|
2248 | {
|
---|
2249 | Material m;
|
---|
2250 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
2251 | exporter->SetForcedMaterial(m);
|
---|
2252 | exporter->SetWireframe();
|
---|
2253 |
|
---|
2254 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
2255 |
|
---|
2256 | // take forced material, else big scenes cannot be viewed
|
---|
2257 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
2258 | exporter->SetForcedMaterial(m);
|
---|
2259 | exporter->SetFilled();
|
---|
2260 |
|
---|
2261 | exporter->ResetForcedMaterial();
|
---|
2262 |
|
---|
2263 | // export rays
|
---|
2264 | if (mExportRays)
|
---|
2265 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
2266 |
|
---|
2267 | if (mExportGeometry)
|
---|
2268 | exporter->ExportGeometry(objects);
|
---|
2269 |
|
---|
2270 | delete exporter;
|
---|
2271 | }
|
---|
2272 | }
|
---|
2273 |
|
---|
2274 |
|
---|
2275 | void VspBspViewCellsManager::ExportBspPvs(const ObjectContainer &objects,
|
---|
2276 | const VssRayContainer &rays)
|
---|
2277 | {
|
---|
2278 | const int leafOut = 10;
|
---|
2279 |
|
---|
2280 | ViewCell::NewMail();
|
---|
2281 |
|
---|
2282 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
2283 | Debug << "\nOutput view cells: " << endl;
|
---|
2284 |
|
---|
2285 | // sort view cells to visualize the largest view cells
|
---|
2286 | #if 0
|
---|
2287 | stable_sort(mViewCells.begin(), mViewCells.end(), vc_gt);
|
---|
2288 | #endif
|
---|
2289 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
2290 |
|
---|
2291 | #if 1
|
---|
2292 | //-- some rays for output
|
---|
2293 | vector<BspRay *> bspRays;
|
---|
2294 | mVspBspTree->ConstructBspRays(bspRays, rays);
|
---|
2295 |
|
---|
2296 | const int raysOut = min((int)bspRays.size(), mVisualizationSamples);
|
---|
2297 | #endif
|
---|
2298 |
|
---|
2299 | for (int i = 0; i < limit; ++ i)
|
---|
2300 | {
|
---|
2301 | cout << "creating output for view cell " << i << " ... ";
|
---|
2302 |
|
---|
2303 | VssRayContainer vcRays;
|
---|
2304 | Intersectable::NewMail();
|
---|
2305 | #if 0 // largest view cell pvs first
|
---|
2306 | BspViewCell *vc = dynamic_cast<BspViewCell *>(mViewCells[i]);
|
---|
2307 | #else
|
---|
2308 | BspViewCell *vc = dynamic_cast<BspViewCell *>
|
---|
2309 | (mViewCells[Random((int)mViewCells.size())]);
|
---|
2310 | #endif
|
---|
2311 |
|
---|
2312 | #if 1
|
---|
2313 | // check whether we can add the current ray to the output rays
|
---|
2314 | for (int k = 0; k < raysOut; ++ k)
|
---|
2315 | {
|
---|
2316 | BspRay *ray = bspRays[k];
|
---|
2317 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
2318 | {
|
---|
2319 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
2320 | if (vc == leaf->GetViewCell())
|
---|
2321 | vcRays.push_back(ray->vssRay);
|
---|
2322 | }
|
---|
2323 | }
|
---|
2324 | #endif
|
---|
2325 | //bspLeaves[j]->Mail();
|
---|
2326 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
2327 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
2328 | exporter->SetWireframe();
|
---|
2329 |
|
---|
2330 | Material m;//= RandomMaterial();
|
---|
2331 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
2332 | exporter->SetForcedMaterial(m);
|
---|
2333 |
|
---|
2334 | ExportVcGeometry(exporter, vc);
|
---|
2335 |
|
---|
2336 |
|
---|
2337 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
2338 | << ", piercing rays=" << (int)vcRays.size()
|
---|
2339 | << ", leaves=" << (int)vc->mLeaves.size() << endl;
|
---|
2340 |
|
---|
2341 | //-- export rays piercing this view cell
|
---|
2342 | #if 1
|
---|
2343 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
2344 | #endif
|
---|
2345 | #if 0
|
---|
2346 | vector<BspLeaf *>::const_iterator lit, lit_end = vc->mLeaves.end();
|
---|
2347 |
|
---|
2348 | for (lit = vc->mLeaves.begin(); lit != lit_end; ++ lit)
|
---|
2349 | exporter->ExportRays((*lit)->mVssRays);
|
---|
2350 | #endif
|
---|
2351 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
2352 | exporter->SetForcedMaterial(m);
|
---|
2353 |
|
---|
2354 | ObjectPvsMap::const_iterator it,
|
---|
2355 | it_end = vc->GetPvs().mEntries.end();
|
---|
2356 |
|
---|
2357 | exporter->SetFilled();
|
---|
2358 |
|
---|
2359 | // output PVS of view cell
|
---|
2360 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
2361 | {
|
---|
2362 | Intersectable *intersect = (*it).first;
|
---|
2363 |
|
---|
2364 | if (!intersect->Mailed())
|
---|
2365 | {
|
---|
2366 | Material m = RandomMaterial();
|
---|
2367 | exporter->SetForcedMaterial(m);
|
---|
2368 |
|
---|
2369 | exporter->ExportIntersectable(intersect);
|
---|
2370 | intersect->Mail();
|
---|
2371 | }
|
---|
2372 | }
|
---|
2373 |
|
---|
2374 | DEL_PTR(exporter);
|
---|
2375 | cout << "finished" << endl;
|
---|
2376 | }
|
---|
2377 |
|
---|
2378 | #if 1
|
---|
2379 | CLEAR_CONTAINER(bspRays);
|
---|
2380 | #endif
|
---|
2381 | Debug << endl;
|
---|
2382 | }
|
---|
2383 |
|
---|
2384 |
|
---|
2385 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
2386 | const Vector3 &termination,
|
---|
2387 | ViewCellContainer &viewcells)
|
---|
2388 | {
|
---|
2389 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
2390 | }
|
---|
2391 |
|
---|
2392 |
|
---|
2393 | void VspBspViewCellsManager::ExportColor(Exporter *exporter,
|
---|
2394 | ViewCell *vc) const
|
---|
2395 | {
|
---|
2396 | if (CheckValidity(vc, mMinPvsSize, mMaxPvsSize) && (mColorCode == 0)) // Random color
|
---|
2397 | return;
|
---|
2398 |
|
---|
2399 | float importance = 0;
|
---|
2400 | Material m;
|
---|
2401 |
|
---|
2402 | switch (mColorCode)
|
---|
2403 | {
|
---|
2404 | case 1: // pvs
|
---|
2405 | {
|
---|
2406 | importance = (float)vc->GetPvs().GetSize() /
|
---|
2407 | (float)mViewCellsStats.maxPvs;
|
---|
2408 | }
|
---|
2409 | break;
|
---|
2410 | case 2: // merges
|
---|
2411 | {
|
---|
2412 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(vc);
|
---|
2413 |
|
---|
2414 | importance = (float)bspVc->mLeaves.size() /
|
---|
2415 | (float)mViewCellsStats.maxLeaves;
|
---|
2416 | }
|
---|
2417 | break;
|
---|
2418 | case 3: // merge tree differene
|
---|
2419 | {
|
---|
2420 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
2421 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
2422 |
|
---|
2423 | }
|
---|
2424 | break;
|
---|
2425 | default:
|
---|
2426 | break;
|
---|
2427 | }
|
---|
2428 |
|
---|
2429 | m.mDiffuseColor.b = CheckValidity(vc, mMinPvsSize, mMaxPvsSize) ? 1.0f : 0.0f;
|
---|
2430 | m.mDiffuseColor.r = importance;
|
---|
2431 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
2432 |
|
---|
2433 | //Debug << "importance: " << importance << endl;
|
---|
2434 | exporter->SetForcedMaterial(m);
|
---|
2435 | }
|
---|
2436 |
|
---|
2437 |
|
---|
2438 | void VspBspViewCellsManager::ExportVcGeometry(Exporter *exporter,
|
---|
2439 | ViewCell *vc) const
|
---|
2440 | {
|
---|
2441 | if (vc->GetMesh())
|
---|
2442 | {
|
---|
2443 | exporter->ExportMesh(vc->GetMesh());
|
---|
2444 | return;
|
---|
2445 | }
|
---|
2446 |
|
---|
2447 | BspNodeGeometry geom;
|
---|
2448 | mVspBspTree->
|
---|
2449 | ConstructGeometry(dynamic_cast<BspViewCell *>(vc), geom);
|
---|
2450 | exporter->ExportPolygons(geom.mPolys);
|
---|
2451 | }
|
---|
2452 |
|
---|
2453 |
|
---|
2454 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
2455 | {
|
---|
2456 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(vc);
|
---|
2457 |
|
---|
2458 | int maxDist = 0;
|
---|
2459 | // compute max height difference
|
---|
2460 | for (int i = 0; i < (int)bspVc->mLeaves.size(); ++ i)
|
---|
2461 | for (int j = 0; j < (int)bspVc->mLeaves.size(); ++ j)
|
---|
2462 | {
|
---|
2463 | BspLeaf *leaf = bspVc->mLeaves[i];
|
---|
2464 |
|
---|
2465 | if (i != j)
|
---|
2466 | {
|
---|
2467 | BspLeaf *leaf2 = bspVc->mLeaves[j];
|
---|
2468 | int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
2469 | if (dist > maxDist)
|
---|
2470 | maxDist = dist;
|
---|
2471 | }
|
---|
2472 | }
|
---|
2473 | return maxDist;
|
---|
2474 | }
|
---|
2475 |
|
---|
2476 |
|
---|
2477 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point)
|
---|
2478 | {
|
---|
2479 | if (!mVspBspTree)
|
---|
2480 | return NULL;
|
---|
2481 | return mVspBspTree->GetViewCell(point);
|
---|
2482 | }
|
---|
2483 |
|
---|
2484 |
|
---|
2485 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
2486 | {
|
---|
2487 | BspNodeGeometry geom;
|
---|
2488 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(vc);
|
---|
2489 | mVspBspTree->ConstructGeometry(bspVc, geom);
|
---|
2490 |
|
---|
2491 | Mesh *mesh = new Mesh();
|
---|
2492 | geom.AddToMesh(*mesh);
|
---|
2493 | vc->SetMesh(mesh);
|
---|
2494 | mMeshContainer.push_back(mesh);
|
---|
2495 | }
|
---|
2496 |
|
---|
2497 |
|
---|
2498 | bool VspBspViewCellsManager::LoadViewCells(const string filename, ObjectContainer *objects)
|
---|
2499 | {
|
---|
2500 | ViewCellsParser parser;
|
---|
2501 |
|
---|
2502 | DEL_PTR(mVspBspTree);
|
---|
2503 | mVspBspTree = new VspBspTree();
|
---|
2504 |
|
---|
2505 | bool success = parser.ParseFile(filename, mVspBspTree, this, objects);
|
---|
2506 | mVspBspTree->RepairViewCellsLeafLists();
|
---|
2507 | mVspBspTree->mBox = GetViewSpaceBox();
|
---|
2508 | ResetViewCells();
|
---|
2509 |
|
---|
2510 | mViewCellsFinished = true;
|
---|
2511 | mMaxPvsSize = (int)objects->size();
|
---|
2512 |
|
---|
2513 | FinalizeViewCells(true);
|
---|
2514 |
|
---|
2515 | Debug << (int)mViewCells.size() << " view cells loaded" << endl;
|
---|
2516 |
|
---|
2517 | return success;
|
---|
2518 | }
|
---|
2519 |
|
---|
2520 |
|
---|
2521 | inline bool ilt(Intersectable *obj1, Intersectable *obj2)
|
---|
2522 | {
|
---|
2523 | return obj1->mId < obj2->mId;
|
---|
2524 | }
|
---|
2525 |
|
---|
2526 |
|
---|
2527 | bool VspBspViewCellsManager::ExportViewCells(const string filename)
|
---|
2528 | {
|
---|
2529 | cout << "exporting view cells to xml ... ";
|
---|
2530 | std::ofstream stream;
|
---|
2531 |
|
---|
2532 | // for output we need unique ids
|
---|
2533 | CreateUniqueViewCellIds();
|
---|
2534 |
|
---|
2535 | stream.open(filename.c_str());
|
---|
2536 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
2537 | stream << "<Visibility_Solution>" << endl;
|
---|
2538 |
|
---|
2539 | //-- load the view cells itself, i.e., the ids and the pvs
|
---|
2540 | stream << "<ViewCells>" << endl;
|
---|
2541 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
2542 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
2543 | ExportViewCell(*it, stream);
|
---|
2544 |
|
---|
2545 | stream << "</ViewCells>" << endl;
|
---|
2546 |
|
---|
2547 | //-- load the hierarchy
|
---|
2548 | stream << "<BspTree>" << endl;
|
---|
2549 | mVspBspTree->Export(stream);
|
---|
2550 | stream << endl << "</BspTree>" << endl;
|
---|
2551 |
|
---|
2552 | stream << "</Visibility_Solution>" << endl;
|
---|
2553 | stream.close();
|
---|
2554 |
|
---|
2555 | cout << "finished" << endl;
|
---|
2556 |
|
---|
2557 | return true;
|
---|
2558 | }
|
---|
2559 |
|
---|
2560 |
|
---|
2561 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
2562 | {
|
---|
2563 | return mVspBspTree->CastBeam(beam);
|
---|
2564 | }
|
---|
2565 |
|
---|
2566 |
|
---|
2567 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
2568 | {
|
---|
2569 | BspViewCell *vc = dynamic_cast<BspViewCell *>(viewCell);
|
---|
2570 | CreateMesh(vc);
|
---|
2571 |
|
---|
2572 | vector<BspLeaf *>::const_iterator it, it_end = vc->mLeaves.end();
|
---|
2573 |
|
---|
2574 | float area = 0;
|
---|
2575 | float volume = 0;
|
---|
2576 |
|
---|
2577 | for (it = vc->mLeaves.begin(); it != it_end; ++ it)
|
---|
2578 | {
|
---|
2579 | BspNodeGeometry geom;
|
---|
2580 | BspLeaf *leaf = *it;
|
---|
2581 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
2582 |
|
---|
2583 | area += geom.GetArea();
|
---|
2584 | volume += geom.GetVolume();
|
---|
2585 | }
|
---|
2586 |
|
---|
2587 | viewCell->SetVolume(volume);
|
---|
2588 | viewCell->SetArea(area);
|
---|
2589 | } |
---|