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 |
|
---|
14 |
|
---|
15 | ViewCellsManager::ViewCellsManager():
|
---|
16 | mRenderSimulator(NULL),
|
---|
17 | mConstructionSamples(0),
|
---|
18 | mPostProcessSamples(0),
|
---|
19 | mVisualizationSamples(0),
|
---|
20 | mTotalAreaValid(false),
|
---|
21 | mTotalArea(0.0f)
|
---|
22 | {
|
---|
23 | // post processing stuff
|
---|
24 | environment->GetIntValue("ViewCells.PostProcessing.minPvsDif", mMinPvsDif);
|
---|
25 | environment->GetIntValue("ViewCells.PostProcessing.minPvs", mMinPvs);
|
---|
26 | environment->GetIntValue("ViewCells.PostProcessing.maxPvs", mMaxPvs);
|
---|
27 | }
|
---|
28 |
|
---|
29 | ViewCellsManager::ViewCellsManager(int constructionSamples):
|
---|
30 | mConstructionSamples(constructionSamples),
|
---|
31 | mRenderSimulator(NULL),
|
---|
32 | mPostProcessSamples(0),
|
---|
33 | mVisualizationSamples(0)
|
---|
34 | {
|
---|
35 | // post processing stuff
|
---|
36 | environment->GetIntValue("ViewCells.PostProcessing.minPvsDif", mMinPvsDif);
|
---|
37 | environment->GetIntValue("ViewCells.PostProcessing.minPvs", mMinPvs);
|
---|
38 | environment->GetIntValue("ViewCells.PostProcessing.maxPvs", mMaxPvs);
|
---|
39 | }
|
---|
40 |
|
---|
41 | ViewCellsManager::~ViewCellsManager()
|
---|
42 | {
|
---|
43 | DEL_PTR(mRenderSimulator);
|
---|
44 |
|
---|
45 | CLEAR_CONTAINER(mViewCells);
|
---|
46 | }
|
---|
47 |
|
---|
48 | bool ViewCellsManager::LoadViewCells(const string filename)
|
---|
49 | {
|
---|
50 | X3dParser parser;
|
---|
51 |
|
---|
52 | environment->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
|
---|
53 |
|
---|
54 | bool success = parser.ParseFile(filename, *this);
|
---|
55 | Debug << (int)mViewCells.size() << " view cells loaded" << endl;
|
---|
56 |
|
---|
57 | return success;
|
---|
58 | }
|
---|
59 |
|
---|
60 | void ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays)
|
---|
61 | {
|
---|
62 | // view cells not yet constructed
|
---|
63 | if (!ViewCellsConstructed())
|
---|
64 | return;
|
---|
65 |
|
---|
66 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
67 |
|
---|
68 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
69 | {
|
---|
70 | ComputeSampleContributions(*(*it));
|
---|
71 | }
|
---|
72 | }
|
---|
73 |
|
---|
74 | void ViewCellsManager::AddViewCell(ViewCell *viewCell)
|
---|
75 | {
|
---|
76 | mViewCells.push_back(viewCell);
|
---|
77 | }
|
---|
78 |
|
---|
79 | void ViewCellsManager::DeriveViewCells(const ObjectContainer &objects,
|
---|
80 | ViewCellContainer &viewCells,
|
---|
81 | const int maxViewCells) const
|
---|
82 | {
|
---|
83 | // maximal max viewcells
|
---|
84 | int limit = maxViewCells > 0 ?
|
---|
85 | Min((int)objects.size(), maxViewCells) : (int)objects.size();
|
---|
86 |
|
---|
87 | for (int i = 0; i < limit; ++ i)
|
---|
88 | {
|
---|
89 | Intersectable *object = objects[i];
|
---|
90 |
|
---|
91 | // extract the mesh instances
|
---|
92 | if (object->Type() == Intersectable::MESH_INSTANCE)
|
---|
93 | {
|
---|
94 | MeshInstance *inst = dynamic_cast<MeshInstance *>(object);
|
---|
95 |
|
---|
96 | ViewCell *viewCell = GenerateViewCell(inst->GetMesh());
|
---|
97 | viewCells.push_back(viewCell);
|
---|
98 | }
|
---|
99 | //TODO: transformed meshes
|
---|
100 | }
|
---|
101 | }
|
---|
102 |
|
---|
103 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
|
---|
104 | const float height) const
|
---|
105 | {
|
---|
106 | // one mesh per view cell
|
---|
107 | Mesh *mesh = new Mesh();
|
---|
108 |
|
---|
109 | //-- construct prism
|
---|
110 |
|
---|
111 | // bottom
|
---|
112 | mesh->mFaces.push_back(new Face(2,1,0));
|
---|
113 | // top
|
---|
114 | mesh->mFaces.push_back(new Face(3,4,5));
|
---|
115 | // sides
|
---|
116 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
|
---|
117 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
|
---|
118 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
|
---|
119 |
|
---|
120 | //--- extrude new vertices for top of prism
|
---|
121 | Vector3 triNorm = baseTri.GetNormal();
|
---|
122 |
|
---|
123 | Triangle3 topTri;
|
---|
124 |
|
---|
125 | // add base vertices and calculate top vertices
|
---|
126 | for (int i = 0; i < 3; ++ i)
|
---|
127 | mesh->mVertices.push_back(baseTri.mVertices[i]);
|
---|
128 |
|
---|
129 | // add top vertices
|
---|
130 | for (int i = 0; i < 3; ++ i)
|
---|
131 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
|
---|
132 |
|
---|
133 | mesh->Preprocess();
|
---|
134 |
|
---|
135 | return GenerateViewCell(mesh);
|
---|
136 | }
|
---|
137 |
|
---|
138 | ViewCell *ViewCellsManager::MergeViewCells(ViewCell &front, ViewCell &back) const
|
---|
139 | {
|
---|
140 | // generate merged view cell
|
---|
141 | ViewCell *vc = GenerateViewCell();
|
---|
142 |
|
---|
143 | // merge pvs
|
---|
144 | vc->GetPvs().Merge(front.GetPvs(), back.GetPvs());
|
---|
145 |
|
---|
146 | //-- merge ray sets
|
---|
147 | stable_sort(front.mPiercingRays.begin(), front.mPiercingRays.end());
|
---|
148 | stable_sort(back.mPiercingRays.begin(), back.mPiercingRays.end());
|
---|
149 |
|
---|
150 | std::merge(front.mPiercingRays.begin(), front.mPiercingRays.end(),
|
---|
151 | back.mPiercingRays.begin(), back.mPiercingRays.end(),
|
---|
152 | vc->mPiercingRays.begin());
|
---|
153 |
|
---|
154 | return vc;
|
---|
155 | }
|
---|
156 |
|
---|
157 |
|
---|
158 | ViewCell *ViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
159 | {
|
---|
160 | return new ViewCell(mesh);
|
---|
161 | }
|
---|
162 |
|
---|
163 |
|
---|
164 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
|
---|
165 | {
|
---|
166 | mVisualizationSamples = visSamples;
|
---|
167 | }
|
---|
168 |
|
---|
169 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
|
---|
170 | {
|
---|
171 | mConstructionSamples = constructionSamples;
|
---|
172 | }
|
---|
173 |
|
---|
174 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
|
---|
175 | {
|
---|
176 | mPostProcessSamples = postProcessSamples;
|
---|
177 | }
|
---|
178 |
|
---|
179 | int ViewCellsManager::GetVisualizationSamples() const
|
---|
180 | {
|
---|
181 | return mVisualizationSamples;
|
---|
182 | }
|
---|
183 |
|
---|
184 | int ViewCellsManager::GetConstructionSamples() const
|
---|
185 | {
|
---|
186 | return mConstructionSamples;
|
---|
187 | }
|
---|
188 |
|
---|
189 | int ViewCellsManager::GetPostProcessSamples() const
|
---|
190 | {
|
---|
191 | return mPostProcessSamples;
|
---|
192 | }
|
---|
193 |
|
---|
194 | void
|
---|
195 | ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
|
---|
196 | {
|
---|
197 | ViewCellContainer::const_iterator it = mViewCells.begin();
|
---|
198 | stat.viewcells = 0;
|
---|
199 | stat.minPvs = 100000000;
|
---|
200 | stat.maxPvs = 0;
|
---|
201 | stat.avgPvs = 0.0f;
|
---|
202 |
|
---|
203 | for (; it != mViewCells.end(); ++it) {
|
---|
204 | ViewCell *viewcell = *it;
|
---|
205 | int pvsSize = viewcell->GetPvs().GetSize();
|
---|
206 | if ( pvsSize < stat.minPvs)
|
---|
207 | stat.minPvs = pvsSize;
|
---|
208 | if (pvsSize > stat.maxPvs)
|
---|
209 | stat.maxPvs = pvsSize;
|
---|
210 | stat.avgPvs += pvsSize;
|
---|
211 | stat.viewcells++;
|
---|
212 | }
|
---|
213 | if (stat.viewcells)
|
---|
214 | stat.avgPvs/=stat.viewcells;
|
---|
215 | }
|
---|
216 |
|
---|
217 | void
|
---|
218 | ViewCellsManager::PrintPvsStatistics(ostream &s)
|
---|
219 | {
|
---|
220 | s<<"############# Viewcell PVS STAT ##################\n";
|
---|
221 | PvsStatistics pvsStat;
|
---|
222 | GetPvsStatistics(pvsStat);
|
---|
223 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
|
---|
224 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
|
---|
225 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
|
---|
226 | }
|
---|
227 |
|
---|
228 | ViewCellContainer &ViewCellsManager::GetViewCells()
|
---|
229 | {
|
---|
230 | return mViewCells;
|
---|
231 | }
|
---|
232 |
|
---|
233 | void ViewCellsManager::ComputeSampleContributions(VssRay &ray)
|
---|
234 | {
|
---|
235 | ViewCellContainer viewcells;
|
---|
236 |
|
---|
237 | CastLineSegment(ray.mOrigin,
|
---|
238 | ray.mTermination,
|
---|
239 | viewcells);
|
---|
240 |
|
---|
241 | ray.mPvsContribution = 0;
|
---|
242 | ray.mRelativePvsContribution = 0.0f;
|
---|
243 |
|
---|
244 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
245 |
|
---|
246 | for (; it != viewcells.end(); ++it)
|
---|
247 | {
|
---|
248 | ViewCell *viewcell = *it;
|
---|
249 |
|
---|
250 | // if ray not outside of view space
|
---|
251 | float contribution;
|
---|
252 | bool added =
|
---|
253 | viewcell->GetPvs().AddSample(ray.mTerminationObject,
|
---|
254 | contribution);
|
---|
255 |
|
---|
256 | if (added)
|
---|
257 | ++ ray.mPvsContribution;
|
---|
258 |
|
---|
259 | ray.mRelativePvsContribution += contribution;
|
---|
260 | }
|
---|
261 | }
|
---|
262 |
|
---|
263 |
|
---|
264 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
265 | VssRayContainer &constructionRays,
|
---|
266 | VssRayContainer &savedRays) const
|
---|
267 | {
|
---|
268 | const int limit = min(mConstructionSamples, (int)sourceRays.size());
|
---|
269 |
|
---|
270 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
271 |
|
---|
272 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
273 |
|
---|
274 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
275 | {
|
---|
276 | if (Random(1.0f) < prop)
|
---|
277 | constructionRays.push_back(*it);
|
---|
278 | else
|
---|
279 | savedRays.push_back(*it);
|
---|
280 | }
|
---|
281 | }
|
---|
282 |
|
---|
283 |
|
---|
284 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
|
---|
285 | {
|
---|
286 | return viewCell->GetVolume();
|
---|
287 | }
|
---|
288 |
|
---|
289 |
|
---|
290 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
291 | {
|
---|
292 | return 0.0f;
|
---|
293 | }
|
---|
294 |
|
---|
295 |
|
---|
296 | float ViewCellsManager::GetAccVcArea()
|
---|
297 | {
|
---|
298 | // if already computed
|
---|
299 | if (mTotalAreaValid)
|
---|
300 | return mTotalArea;
|
---|
301 |
|
---|
302 | mTotalArea = 0;
|
---|
303 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
304 |
|
---|
305 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
306 | mTotalArea += GetArea(*it);
|
---|
307 |
|
---|
308 | mTotalAreaValid = true;
|
---|
309 |
|
---|
310 | return mTotalArea;
|
---|
311 | }
|
---|
312 |
|
---|
313 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
314 | {
|
---|
315 | s << mViewCellsStats << endl;
|
---|
316 | }
|
---|
317 |
|
---|
318 |
|
---|
319 | /**********************************************************************/
|
---|
320 | /* BspViewCellsManager implementation */
|
---|
321 | /**********************************************************************/
|
---|
322 |
|
---|
323 | BspViewCellsManager::BspViewCellsManager(BspTree *bspTree,
|
---|
324 | int constructionSamples):
|
---|
325 | ViewCellsManager(constructionSamples),
|
---|
326 | mBspTree(bspTree)
|
---|
327 | {
|
---|
328 | }
|
---|
329 |
|
---|
330 |
|
---|
331 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
332 | {
|
---|
333 | return mBspTree->GetRoot() != NULL;
|
---|
334 | }
|
---|
335 |
|
---|
336 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
337 | {
|
---|
338 | return new BspViewCell(mesh);
|
---|
339 | }
|
---|
340 |
|
---|
341 | int BspViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
342 | const VssRayContainer &rays,
|
---|
343 | AxisAlignedBox3 *sceneBbox)
|
---|
344 | {
|
---|
345 | // if view cells were already constructed
|
---|
346 | if (ViewCellsConstructed())
|
---|
347 | return 0;
|
---|
348 |
|
---|
349 | int sampleContributions = 0;
|
---|
350 |
|
---|
351 | // construct view cells using the collected samples
|
---|
352 | RayContainer constructionRays;
|
---|
353 | VssRayContainer savedRays;
|
---|
354 |
|
---|
355 | const int limit = min(mConstructionSamples, (int)rays.size());
|
---|
356 |
|
---|
357 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
358 |
|
---|
359 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
360 |
|
---|
361 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
362 | {
|
---|
363 | if (Random(1.0f) < prop)
|
---|
364 | constructionRays.push_back(new Ray(*(*it)));
|
---|
365 | else
|
---|
366 | savedRays.push_back(*it);
|
---|
367 | }
|
---|
368 |
|
---|
369 | if (mViewCells.empty())
|
---|
370 | {
|
---|
371 | // no view cells loaded
|
---|
372 | mBspTree->Construct(objects, constructionRays);
|
---|
373 | // collect final view cells
|
---|
374 | mBspTree->CollectViewCells(mViewCells);
|
---|
375 | }
|
---|
376 | else
|
---|
377 | {
|
---|
378 | mBspTree->Construct(mViewCells);
|
---|
379 | }
|
---|
380 |
|
---|
381 | mBspTree->EvaluateViewCellsStats(mViewCellsStats);
|
---|
382 |
|
---|
383 | // destroy rays created only for construction
|
---|
384 | CLEAR_CONTAINER(constructionRays);
|
---|
385 |
|
---|
386 | Debug << mBspTree->GetStatistics() << endl;
|
---|
387 |
|
---|
388 | // recast rest of the rays
|
---|
389 | ComputeSampleContributions(savedRays);
|
---|
390 |
|
---|
391 | return sampleContributions;
|
---|
392 | }
|
---|
393 |
|
---|
394 | float BspViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
395 | {
|
---|
396 | PolygonContainer geom;
|
---|
397 |
|
---|
398 | // compute view cell area
|
---|
399 | mBspTree->ConstructGeometry(dynamic_cast<BspViewCell *>(viewCell), geom);
|
---|
400 |
|
---|
401 | const float area = Polygon3::GetArea(geom);
|
---|
402 | CLEAR_CONTAINER(geom);
|
---|
403 |
|
---|
404 | return area;
|
---|
405 | }
|
---|
406 |
|
---|
407 |
|
---|
408 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
409 | {
|
---|
410 | // compute view cell area as subsititute for probability
|
---|
411 | #if 0
|
---|
412 | return GetArea(viewCell) / mBspTree->GetBoundingBox().SurfaceArea();
|
---|
413 | #else
|
---|
414 | return GetArea(viewCell) / GetAccVcArea();
|
---|
415 | #endif
|
---|
416 | }
|
---|
417 |
|
---|
418 |
|
---|
419 | float BspViewCellsManager::GetRendercost(ViewCell *viewCell, float objRendercost) const
|
---|
420 | {
|
---|
421 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
422 | }
|
---|
423 |
|
---|
424 |
|
---|
425 | AxisAlignedBox3 BspViewCellsManager::GetSceneBbox() const
|
---|
426 | {
|
---|
427 | return mBspTree->GetBoundingBox();
|
---|
428 | }
|
---|
429 |
|
---|
430 |
|
---|
431 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
432 | const Vector3 &termination,
|
---|
433 | ViewCellContainer &viewcells)
|
---|
434 | {
|
---|
435 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
436 | }
|
---|
437 |
|
---|
438 |
|
---|
439 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
440 | const VssRayContainer &rays)
|
---|
441 | {
|
---|
442 | if (mBspRays.empty())
|
---|
443 | ConstructBspRays(rays, mConstructionSamples);
|
---|
444 |
|
---|
445 | if (!ViewCellsConstructed())
|
---|
446 | {
|
---|
447 | Debug << "view cells not constructed" << endl;
|
---|
448 | return 0;
|
---|
449 | }
|
---|
450 |
|
---|
451 | //-- post processing of bsp view cells
|
---|
452 | int vcSize = 0;
|
---|
453 | int pvsSize = 0;
|
---|
454 |
|
---|
455 | Debug << "original view cell partition:\n" << mViewCellsStats << endl;
|
---|
456 |
|
---|
457 | if (1) // export view cells
|
---|
458 | {
|
---|
459 | cout << "exporting initial view cells (=leaves) ... ";
|
---|
460 | Exporter *exporter = Exporter::GetExporter("view_cells.x3d");
|
---|
461 |
|
---|
462 | if (exporter)
|
---|
463 | {
|
---|
464 | //exporter->SetWireframe();
|
---|
465 | exporter->SetFilled();
|
---|
466 | exporter->ExportBspViewCellPartition(*mBspTree,
|
---|
467 | mViewCellsStats.maxPvs);
|
---|
468 |
|
---|
469 | if (0)
|
---|
470 | {
|
---|
471 | Material m;
|
---|
472 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
473 | exporter->SetForcedMaterial(m);
|
---|
474 | exporter->SetWireframe();
|
---|
475 |
|
---|
476 | exporter->ExportGeometry(objects);
|
---|
477 | }
|
---|
478 |
|
---|
479 | delete exporter;
|
---|
480 | }
|
---|
481 | cout << "finished" << endl;
|
---|
482 | }
|
---|
483 |
|
---|
484 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
485 |
|
---|
486 | long startTime = GetTime();
|
---|
487 |
|
---|
488 |
|
---|
489 | // $$JB we do not have connectivity information from the ray in the moment
|
---|
490 | // perhaps we could recast the rays or rember the cells traversed inside the
|
---|
491 | // vssray (which would on other hand create some overhead)
|
---|
492 | //-- merge or subdivide view cells
|
---|
493 | int merged = 0;
|
---|
494 |
|
---|
495 | vector<BspIntersection>::const_iterator iit;
|
---|
496 |
|
---|
497 | for (int i = 0; i < (int)mBspRays.size(); ++ i)
|
---|
498 | {
|
---|
499 | BspRay *ray = mBspRays[i];
|
---|
500 |
|
---|
501 | // traverse leaves stored in the rays and compare and merge consecutive
|
---|
502 | // leaves (i.e., the neighbors in the tree)
|
---|
503 | if (ray->intersections.size() < 2)
|
---|
504 | continue;
|
---|
505 |
|
---|
506 | iit = ray->intersections.begin();
|
---|
507 |
|
---|
508 | BspLeaf *previousLeaf = (*iit).mLeaf;
|
---|
509 | ++ iit;
|
---|
510 |
|
---|
511 | for (; iit != ray->intersections.end(); ++ iit)
|
---|
512 | {
|
---|
513 | BspLeaf *leaf = (*iit).mLeaf;
|
---|
514 |
|
---|
515 | if (ShouldMerge(leaf, previousLeaf))
|
---|
516 | {
|
---|
517 | MergeBspLeafViewCells(leaf, previousLeaf);
|
---|
518 |
|
---|
519 | ++ merged;
|
---|
520 | }
|
---|
521 |
|
---|
522 | previousLeaf = leaf;
|
---|
523 | }
|
---|
524 | }
|
---|
525 |
|
---|
526 | //-- stats and visualizations
|
---|
527 | cout << "finished" << endl;
|
---|
528 | cout << "merged " << merged << " view cells in "
|
---|
529 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
530 |
|
---|
531 | Debug << "Postprocessing: Merged " << merged << " view cells in "
|
---|
532 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
533 |
|
---|
534 | // reset view cells and stats
|
---|
535 | mViewCells.clear();
|
---|
536 | mBspTree->CollectViewCells(mViewCells);
|
---|
537 | mViewCellsStats.Reset();
|
---|
538 | mBspTree->EvaluateViewCellsStats(mViewCellsStats);
|
---|
539 |
|
---|
540 | return merged;
|
---|
541 | }
|
---|
542 |
|
---|
543 |
|
---|
544 | BspViewCellsManager::~BspViewCellsManager()
|
---|
545 | {
|
---|
546 | CLEAR_CONTAINER(mBspRays);
|
---|
547 | }
|
---|
548 |
|
---|
549 |
|
---|
550 | int BspViewCellsManager::GetType() const
|
---|
551 | {
|
---|
552 | return BSP;
|
---|
553 | }
|
---|
554 |
|
---|
555 |
|
---|
556 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
557 | const VssRayContainer &sampleRays)
|
---|
558 | {
|
---|
559 | if (!ViewCellsConstructed())
|
---|
560 | return;
|
---|
561 |
|
---|
562 | if (mBspRays.empty())
|
---|
563 | ConstructBspRays(sampleRays, mConstructionSamples);
|
---|
564 |
|
---|
565 | if (1) // export view cells
|
---|
566 | {
|
---|
567 | cout << "exporting view cells after merge ... ";
|
---|
568 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.x3d");
|
---|
569 |
|
---|
570 | if (exporter)
|
---|
571 | {
|
---|
572 | exporter->ExportBspViewCellPartition(*mBspTree,
|
---|
573 | mViewCellsStats.maxPvs);
|
---|
574 | delete exporter;
|
---|
575 | }
|
---|
576 |
|
---|
577 | cout << "finished" << endl;
|
---|
578 | }
|
---|
579 |
|
---|
580 | //-- visualization of the BSP splits
|
---|
581 | bool exportSplits = false;
|
---|
582 | environment->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
583 |
|
---|
584 | if (exportSplits)
|
---|
585 | {
|
---|
586 | cout << "exporting splits ... ";
|
---|
587 | ExportSplits(objects);
|
---|
588 | cout << "finished" << endl;
|
---|
589 | }
|
---|
590 |
|
---|
591 | ExportBspPvs(objects);
|
---|
592 | }
|
---|
593 |
|
---|
594 |
|
---|
595 | inline bool vc_gt(ViewCell *a, ViewCell *b)
|
---|
596 | {
|
---|
597 | return a->GetPvs().GetSize() > b->GetPvs().GetSize();
|
---|
598 | }
|
---|
599 |
|
---|
600 |
|
---|
601 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
602 | {
|
---|
603 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
604 |
|
---|
605 | if (exporter)
|
---|
606 | {
|
---|
607 | Material m;
|
---|
608 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
609 | exporter->SetForcedMaterial(m);
|
---|
610 | exporter->SetWireframe();
|
---|
611 |
|
---|
612 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
613 |
|
---|
614 | // take forced material, else big scenes cannot be viewed
|
---|
615 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
616 | exporter->SetForcedMaterial(m);
|
---|
617 | exporter->SetFilled();
|
---|
618 |
|
---|
619 | exporter->ResetForcedMaterial();
|
---|
620 |
|
---|
621 | // export rays
|
---|
622 | if (0)
|
---|
623 | {
|
---|
624 | VssRayContainer outRays;
|
---|
625 |
|
---|
626 | int raysSize = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
627 |
|
---|
628 | for (int i = 0; i < raysSize; ++ i)
|
---|
629 | // only rays piercing geometry
|
---|
630 | outRays.push_back(mBspRays[i]->vssRay);
|
---|
631 |
|
---|
632 | // export rays
|
---|
633 | exporter->ExportRays(outRays, RgbColor(1, 1, 0));
|
---|
634 | }
|
---|
635 |
|
---|
636 | if (0)
|
---|
637 | exporter->ExportGeometry(objects);
|
---|
638 |
|
---|
639 | delete exporter;
|
---|
640 | }
|
---|
641 | }
|
---|
642 |
|
---|
643 |
|
---|
644 | void BspViewCellsManager::ExportBspPvs(const ObjectContainer &objects)
|
---|
645 | {
|
---|
646 | bool exportRays = false;
|
---|
647 | bool exportGeometry = false;
|
---|
648 |
|
---|
649 | environment->GetBoolValue("VspBspTree.Visualization.exportRays", exportRays);
|
---|
650 | environment->GetBoolValue("VspBspTree.Visualization.exportGeometry", exportGeometry);
|
---|
651 |
|
---|
652 | const int leafOut = 10;
|
---|
653 |
|
---|
654 | ViewCell::NewMail();
|
---|
655 |
|
---|
656 | //-- some rays for output
|
---|
657 | const int raysOut = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
658 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
659 | Debug << "\nOutput view cells: " << endl;
|
---|
660 |
|
---|
661 | if (1)
|
---|
662 | {
|
---|
663 | //-- some random view cells and rays for output
|
---|
664 | vector<BspLeaf *> vspBspLeaves;
|
---|
665 |
|
---|
666 | for (int i = 0; i < leafOut; ++ i)
|
---|
667 | vspBspLeaves.push_back(mBspTree->GetRandomLeaf());
|
---|
668 |
|
---|
669 | for (int i = 0; i < (int)vspBspLeaves.size(); ++ i)
|
---|
670 | {
|
---|
671 | VssRayContainer vcRays;
|
---|
672 | cout << "creating output for view cell " << i << " ... ";
|
---|
673 |
|
---|
674 | // check whether we can add the current ray to the output rays
|
---|
675 | for (int k = 0; k < raysOut; ++ k)
|
---|
676 | {
|
---|
677 | BspRay *ray = mBspRays[k];
|
---|
678 |
|
---|
679 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
680 | {
|
---|
681 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
682 |
|
---|
683 | if (vspBspLeaves[i]->GetViewCell() == leaf->GetViewCell())
|
---|
684 | {
|
---|
685 | vcRays.push_back(ray->vssRay);
|
---|
686 | }
|
---|
687 | }
|
---|
688 | }
|
---|
689 |
|
---|
690 | Intersectable::NewMail();
|
---|
691 |
|
---|
692 | BspViewCell *vc = dynamic_cast<BspViewCell *>
|
---|
693 | (vspBspLeaves[i]->GetViewCell());
|
---|
694 |
|
---|
695 | //bspLeaves[j]->Mail();
|
---|
696 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
697 |
|
---|
698 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
699 | exporter->SetFilled();
|
---|
700 |
|
---|
701 | ObjectPvsMap::iterator it = vc->GetPvs().mEntries.begin();
|
---|
702 |
|
---|
703 | exporter->SetWireframe();
|
---|
704 | //exporter->SetFilled();
|
---|
705 |
|
---|
706 | Material m;//= RandomMaterial();
|
---|
707 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
708 | exporter->SetForcedMaterial(m);
|
---|
709 |
|
---|
710 | if (vc->GetMesh())
|
---|
711 | exporter->ExportViewCell(vc);
|
---|
712 | else
|
---|
713 | {
|
---|
714 | PolygonContainer vcGeom;
|
---|
715 |
|
---|
716 | // export view cell geometry
|
---|
717 | mBspTree->ConstructGeometry(vc, vcGeom);
|
---|
718 | exporter->ExportPolygons(vcGeom);
|
---|
719 | CLEAR_CONTAINER(vcGeom);
|
---|
720 | }
|
---|
721 |
|
---|
722 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
723 | << ", piercing rays=" << (int)vcRays.size() << endl;
|
---|
724 |
|
---|
725 | // export rays piercing this view cell
|
---|
726 | if (exportRays)
|
---|
727 | {
|
---|
728 | //exporter->ExportRays(vcRays, RgbColor(1, 0, 0));
|
---|
729 | exporter->ExportRays(vspBspLeaves[i]->mVssRays, RgbColor(1, 1, 1));
|
---|
730 | }
|
---|
731 |
|
---|
732 | m.mDiffuseColor = RgbColor(0, 1, 1);
|
---|
733 | exporter->SetForcedMaterial(m);
|
---|
734 |
|
---|
735 | //exporter->SetWireframe();
|
---|
736 | exporter->SetFilled();
|
---|
737 |
|
---|
738 | // output PVS of view cell
|
---|
739 | for (; it != vc->GetPvs().mEntries.end(); ++ it)
|
---|
740 | {
|
---|
741 | Intersectable *intersect = (*it).first;
|
---|
742 | if (!intersect->Mailed())
|
---|
743 | {
|
---|
744 | exporter->ExportIntersectable(intersect);
|
---|
745 | intersect->Mail();
|
---|
746 | }
|
---|
747 | }
|
---|
748 | Debug << "here1 exportgeom: " << exportGeometry << endl;
|
---|
749 | // output rest of the objects
|
---|
750 | if (exportGeometry)
|
---|
751 | {
|
---|
752 | Material m;//= RandomMaterial();
|
---|
753 | m.mDiffuseColor = RgbColor(0, 0, 1);
|
---|
754 | exporter->SetForcedMaterial(m);
|
---|
755 |
|
---|
756 | for (int j = 0; j < objects.size(); ++ j)
|
---|
757 | if (!objects[j]->Mailed())
|
---|
758 | {
|
---|
759 | exporter->SetForcedMaterial(m);
|
---|
760 | exporter->ExportIntersectable(objects[j]);
|
---|
761 | objects[j]->Mail();
|
---|
762 | }
|
---|
763 | }
|
---|
764 | DEL_PTR(exporter);
|
---|
765 | cout << "finished" << endl;
|
---|
766 | }
|
---|
767 | }
|
---|
768 | else
|
---|
769 | {
|
---|
770 | ViewCellContainer viewCells;
|
---|
771 |
|
---|
772 | mBspTree->CollectViewCells(viewCells);
|
---|
773 | stable_sort(viewCells.begin(), viewCells.end(), vc_gt);
|
---|
774 |
|
---|
775 | int limit = min(leafOut, (int)viewCells.size());
|
---|
776 |
|
---|
777 | for (int i = 0; i < limit; ++ i)
|
---|
778 | {
|
---|
779 | cout << "creating output for view cell " << i << " ... ";
|
---|
780 | VssRayContainer vcRays;
|
---|
781 | Intersectable::NewMail();
|
---|
782 | BspViewCell *vc = dynamic_cast<BspViewCell *>(viewCells[i]);
|
---|
783 |
|
---|
784 | cout << "creating output for view cell " << i << " ... ";
|
---|
785 |
|
---|
786 | // check whether we can add the current ray to the output rays
|
---|
787 | for (int k = 0; k < raysOut; ++ k)
|
---|
788 | {
|
---|
789 | BspRay *ray = mBspRays[k];
|
---|
790 |
|
---|
791 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
792 | {
|
---|
793 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
794 |
|
---|
795 | if (vc == leaf->GetViewCell())
|
---|
796 | {
|
---|
797 | vcRays.push_back(ray->vssRay);
|
---|
798 | }
|
---|
799 | }
|
---|
800 | }
|
---|
801 |
|
---|
802 | //bspLeaves[j]->Mail();
|
---|
803 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
804 |
|
---|
805 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
806 |
|
---|
807 | exporter->SetWireframe();
|
---|
808 |
|
---|
809 | Material m;//= RandomMaterial();
|
---|
810 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
811 | exporter->SetForcedMaterial(m);
|
---|
812 |
|
---|
813 | if (vc->GetMesh())
|
---|
814 | exporter->ExportViewCell(vc);
|
---|
815 | else
|
---|
816 | {
|
---|
817 | PolygonContainer vcGeom;
|
---|
818 | // export view cell
|
---|
819 | mBspTree->ConstructGeometry(vc, vcGeom);
|
---|
820 | exporter->ExportPolygons(vcGeom);
|
---|
821 | CLEAR_CONTAINER(vcGeom);
|
---|
822 | }
|
---|
823 |
|
---|
824 |
|
---|
825 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
826 | << ", piercing rays=" << (int)vcRays.size() << endl;
|
---|
827 |
|
---|
828 |
|
---|
829 | // export rays piercing this view cell
|
---|
830 | exporter->ExportRays(vcRays, RgbColor(0, 1, 0));
|
---|
831 |
|
---|
832 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
833 | exporter->SetForcedMaterial(m);
|
---|
834 |
|
---|
835 | ObjectPvsMap::const_iterator it,
|
---|
836 | it_end = vc->GetPvs().mEntries.end();
|
---|
837 |
|
---|
838 | // output PVS of view cell
|
---|
839 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
840 | {
|
---|
841 | Intersectable *intersect = (*it).first;
|
---|
842 |
|
---|
843 | if (!intersect->Mailed())
|
---|
844 | {
|
---|
845 | Material m = RandomMaterial();
|
---|
846 |
|
---|
847 | exporter->SetForcedMaterial(m);
|
---|
848 |
|
---|
849 | exporter->ExportIntersectable(intersect);
|
---|
850 | intersect->Mail();
|
---|
851 | }
|
---|
852 | }
|
---|
853 |
|
---|
854 | DEL_PTR(exporter);
|
---|
855 | cout << "finished" << endl;
|
---|
856 | }
|
---|
857 | }
|
---|
858 |
|
---|
859 | Debug << endl;
|
---|
860 | }
|
---|
861 |
|
---|
862 |
|
---|
863 | bool BspViewCellsManager::MergeBspLeafViewCells(BspLeaf *front, BspLeaf *back) const
|
---|
864 | {
|
---|
865 | BspViewCell *viewCell =
|
---|
866 | dynamic_cast<BspViewCell *>(MergeViewCells(*front->GetViewCell(), *back->GetViewCell()));
|
---|
867 |
|
---|
868 | if (!viewCell)
|
---|
869 | return false;
|
---|
870 |
|
---|
871 | //-- change pointer to view cells of all leaves associated with the previous view cells
|
---|
872 | BspViewCell *fVc = front->GetViewCell();
|
---|
873 | BspViewCell *bVc = back->GetViewCell();
|
---|
874 |
|
---|
875 | vector<BspLeaf *> fLeaves = fVc->mLeaves;
|
---|
876 | vector<BspLeaf *> bLeaves = bVc->mLeaves;
|
---|
877 |
|
---|
878 | vector<BspLeaf *>::const_iterator it;
|
---|
879 |
|
---|
880 | for (it = fLeaves.begin(); it != fLeaves.end(); ++ it)
|
---|
881 | {
|
---|
882 | (*it)->SetViewCell(viewCell);
|
---|
883 | viewCell->mLeaves.push_back(*it);
|
---|
884 | }
|
---|
885 | for (it = bLeaves.begin(); it != bLeaves.end(); ++ it)
|
---|
886 | {
|
---|
887 | (*it)->SetViewCell(viewCell);
|
---|
888 | viewCell->mLeaves.push_back(*it);
|
---|
889 | }
|
---|
890 |
|
---|
891 | DEL_PTR(fVc);
|
---|
892 | DEL_PTR(bVc);
|
---|
893 |
|
---|
894 | return true;
|
---|
895 | }
|
---|
896 |
|
---|
897 | bool BspViewCellsManager::ShouldMerge(BspLeaf *front, BspLeaf *back) const
|
---|
898 | {
|
---|
899 | ViewCell *fvc = front->GetViewCell();
|
---|
900 | ViewCell *bvc = back->GetViewCell();
|
---|
901 |
|
---|
902 | if ((fvc == mBspTree->GetRootCell()) || (bvc == mBspTree->GetRootCell()) || (fvc == bvc))
|
---|
903 | return false;
|
---|
904 |
|
---|
905 | int fdiff = fvc->GetPvs().Diff(bvc->GetPvs());
|
---|
906 |
|
---|
907 | if (fvc->GetPvs().GetSize() + fdiff < mMaxPvs)
|
---|
908 | {
|
---|
909 | if ((fvc->GetPvs().GetSize() < mMinPvs) ||
|
---|
910 | (bvc->GetPvs().GetSize() < mMinPvs) ||
|
---|
911 | ((fdiff < mMinPvsDif) && (bvc->GetPvs().Diff(fvc->GetPvs()) < mMinPvsDif)))
|
---|
912 | {
|
---|
913 | return true;
|
---|
914 | }
|
---|
915 | }
|
---|
916 |
|
---|
917 | return false;
|
---|
918 | }
|
---|
919 |
|
---|
920 |
|
---|
921 | void BspViewCellsManager::ConstructBspRays(const VssRayContainer &rays,
|
---|
922 | const int numSamples)
|
---|
923 | {
|
---|
924 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
925 |
|
---|
926 | for (it = rays.begin(); it != rays.end() && mBspRays.size() < numSamples; ++ it)
|
---|
927 | {
|
---|
928 | VssRay *vssRay = *it;
|
---|
929 | BspRay *ray = new BspRay(vssRay);
|
---|
930 |
|
---|
931 | ViewCellContainer viewCells;
|
---|
932 |
|
---|
933 | CastLineSegment(vssRay->mTermination, vssRay->mOrigin, viewCells);
|
---|
934 |
|
---|
935 | ViewCellContainer::const_iterator vit, vit_end = viewCells.end();
|
---|
936 |
|
---|
937 | for (vit = viewCells.begin(); vit != vit_end; ++ vit)
|
---|
938 | {
|
---|
939 | BspViewCell *vc = dynamic_cast<BspViewCell *>(*vit);
|
---|
940 | ray->intersections.push_back(BspIntersection(0, vc->mLeaves[0]));
|
---|
941 | }
|
---|
942 |
|
---|
943 | mBspRays.push_back(ray);
|
---|
944 | }
|
---|
945 | }
|
---|
946 |
|
---|
947 |
|
---|
948 | /**********************************************************************/
|
---|
949 | /* KdViewCellsManager implementation */
|
---|
950 | /**********************************************************************/
|
---|
951 |
|
---|
952 | KdViewCellsManager::KdViewCellsManager(KdTree *kdTree):
|
---|
953 | ViewCellsManager(), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
954 | {
|
---|
955 | }
|
---|
956 |
|
---|
957 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
958 | {
|
---|
959 | // compute view cell area as subsititute for probability
|
---|
960 | AxisAlignedBox3 box = mKdTree->GetBox(mKdTree->GetRoot());
|
---|
961 | #if 0
|
---|
962 | return GetArea(viewCell) / box.SurfaceArea();
|
---|
963 | #else
|
---|
964 | return GetArea(viewCell) / GetAccVcArea();
|
---|
965 | #endif
|
---|
966 | }
|
---|
967 |
|
---|
968 |
|
---|
969 | float KdViewCellsManager::GetRendercost(ViewCell *viewCell, float objRendercost) const
|
---|
970 | {
|
---|
971 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
972 | }
|
---|
973 |
|
---|
974 | AxisAlignedBox3 KdViewCellsManager::GetSceneBbox() const
|
---|
975 | {
|
---|
976 | return mKdTree->GetBox();
|
---|
977 | }
|
---|
978 |
|
---|
979 | int KdViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
980 | const VssRayContainer &rays,
|
---|
981 | AxisAlignedBox3 *sceneBbox)
|
---|
982 | {
|
---|
983 | // if view cells already constructed
|
---|
984 | if (ViewCellsConstructed())
|
---|
985 | return 0;
|
---|
986 |
|
---|
987 | mKdTree->Construct();
|
---|
988 |
|
---|
989 | // create the view cells
|
---|
990 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
991 | //mKdTree->EvaluateViewCellsStats(mViewCellsStats);
|
---|
992 |
|
---|
993 | return 0;
|
---|
994 | }
|
---|
995 |
|
---|
996 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
997 | {
|
---|
998 | return mKdTree->GetRoot() != NULL;
|
---|
999 | }
|
---|
1000 |
|
---|
1001 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
1002 | const VssRayContainer &rays)
|
---|
1003 | {
|
---|
1004 | return 0;
|
---|
1005 | }
|
---|
1006 |
|
---|
1007 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
1008 | const VssRayContainer &sampleRays)
|
---|
1009 | {
|
---|
1010 | if (!ViewCellsConstructed())
|
---|
1011 | return;
|
---|
1012 |
|
---|
1013 | // using view cells instead of the kd PVS of objects
|
---|
1014 | const bool useViewCells = true;
|
---|
1015 | bool exportRays = false;
|
---|
1016 |
|
---|
1017 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
1018 | const int pvsOut = min((int)objects.size(), 10);
|
---|
1019 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
1020 |
|
---|
1021 | //$$ JB
|
---|
1022 | //#if 0
|
---|
1023 |
|
---|
1024 | if (useViewCells)
|
---|
1025 | {
|
---|
1026 | const int leafOut = 10;
|
---|
1027 |
|
---|
1028 | ViewCell::NewMail();
|
---|
1029 |
|
---|
1030 | //-- some rays for output
|
---|
1031 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
1032 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
1033 |
|
---|
1034 | //-- some random view cells and rays for output
|
---|
1035 | vector<KdLeaf *> kdLeaves;
|
---|
1036 |
|
---|
1037 | for (int i = 0; i < leafOut; ++ i)
|
---|
1038 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
1039 |
|
---|
1040 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
1041 | {
|
---|
1042 | KdLeaf *leaf = kdLeaves[i];
|
---|
1043 | RayContainer vcRays;
|
---|
1044 |
|
---|
1045 | cout << "creating output for view cell " << i << " ... ";
|
---|
1046 |
|
---|
1047 | // check whether we can add the current ray to the output rays
|
---|
1048 | /*for (int k = 0; k < raysOut; ++ k)
|
---|
1049 | {
|
---|
1050 | Ray *ray = sampleRays[k];
|
---|
1051 |
|
---|
1052 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
1053 | {
|
---|
1054 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
1055 |
|
---|
1056 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
1057 | {
|
---|
1058 | vcRays.push_back(ray);
|
---|
1059 | }
|
---|
1060 | }
|
---|
1061 | }*/
|
---|
1062 |
|
---|
1063 | Intersectable::NewMail();
|
---|
1064 |
|
---|
1065 | ViewCell *vc = leaf->mViewCell;
|
---|
1066 |
|
---|
1067 | //bspLeaves[j]->Mail();
|
---|
1068 | char s[64]; sprintf(s, "kd-pvs%04d.x3d", i);
|
---|
1069 |
|
---|
1070 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1071 | exporter->SetFilled();
|
---|
1072 |
|
---|
1073 | exporter->SetWireframe();
|
---|
1074 | //exporter->SetFilled();
|
---|
1075 |
|
---|
1076 | Material m;//= RandomMaterial();
|
---|
1077 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
1078 | exporter->SetForcedMaterial(m);
|
---|
1079 |
|
---|
1080 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
1081 | exporter->ExportBox(box);
|
---|
1082 |
|
---|
1083 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
1084 | << ", piercing rays=" << (int)vcRays.size() << endl;
|
---|
1085 |
|
---|
1086 | // export rays piercing this view cell
|
---|
1087 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
1088 |
|
---|
1089 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1090 | exporter->SetForcedMaterial(m);
|
---|
1091 |
|
---|
1092 | // exporter->SetWireframe();
|
---|
1093 | exporter->SetFilled();
|
---|
1094 |
|
---|
1095 | ObjectPvsMap::iterator it, it_end = vc->GetPvs().mEntries.end();
|
---|
1096 | // output PVS of view cell
|
---|
1097 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
1098 | {
|
---|
1099 | Intersectable *intersect = (*it).first;
|
---|
1100 | if (!intersect->Mailed())
|
---|
1101 | {
|
---|
1102 | exporter->ExportIntersectable(intersect);
|
---|
1103 | intersect->Mail();
|
---|
1104 | }
|
---|
1105 | }
|
---|
1106 |
|
---|
1107 | DEL_PTR(exporter);
|
---|
1108 | cout << "finished" << endl;
|
---|
1109 | }
|
---|
1110 |
|
---|
1111 | DEL_PTR(rays);
|
---|
1112 | }
|
---|
1113 | else // using kd PVS of objects
|
---|
1114 | {
|
---|
1115 | for (int i = 0; i < limit; ++ i)
|
---|
1116 | {
|
---|
1117 | VssRay *ray = sampleRays[i];
|
---|
1118 |
|
---|
1119 | // check whether we can add this to the rays
|
---|
1120 | for (int j = 0; j < pvsOut; j++)
|
---|
1121 | {
|
---|
1122 | if (objects[j] == ray->mTerminationObject)
|
---|
1123 | {
|
---|
1124 | rays[j].push_back(ray);
|
---|
1125 | }
|
---|
1126 | }
|
---|
1127 | }
|
---|
1128 |
|
---|
1129 | if (exportRays)
|
---|
1130 | {
|
---|
1131 | Exporter *exporter = NULL;
|
---|
1132 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
1133 | exporter->SetWireframe();
|
---|
1134 | exporter->ExportKdTree(*mKdTree);
|
---|
1135 |
|
---|
1136 | for (i=0; i < pvsOut; i++)
|
---|
1137 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
1138 |
|
---|
1139 | exporter->SetFilled();
|
---|
1140 |
|
---|
1141 | delete exporter;
|
---|
1142 | }
|
---|
1143 |
|
---|
1144 | for (int k=0; k < pvsOut; k++)
|
---|
1145 | {
|
---|
1146 | Intersectable *object = objects[k];
|
---|
1147 | char s[64];
|
---|
1148 | sprintf(s, "sample-pvs%04d.x3d", k);
|
---|
1149 |
|
---|
1150 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1151 | exporter->SetWireframe();
|
---|
1152 |
|
---|
1153 | KdPvsMap::iterator i = object->mKdPvs.mEntries.begin();
|
---|
1154 | Intersectable::NewMail();
|
---|
1155 |
|
---|
1156 | // avoid adding the object to the list
|
---|
1157 | object->Mail();
|
---|
1158 | ObjectContainer visibleObjects;
|
---|
1159 |
|
---|
1160 | for (; i != object->mKdPvs.mEntries.end(); i++)
|
---|
1161 | {
|
---|
1162 | KdNode *node = (*i).first;
|
---|
1163 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
1164 |
|
---|
1165 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
1166 | }
|
---|
1167 |
|
---|
1168 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
1169 | exporter->SetFilled();
|
---|
1170 |
|
---|
1171 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
1172 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
1173 |
|
---|
1174 | Material m;
|
---|
1175 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1176 | exporter->SetForcedMaterial(m);
|
---|
1177 | exporter->ExportIntersectable(object);
|
---|
1178 |
|
---|
1179 | delete exporter;
|
---|
1180 | }
|
---|
1181 | }
|
---|
1182 | }
|
---|
1183 |
|
---|
1184 |
|
---|
1185 | int KdViewCellsManager::GetType() const
|
---|
1186 | {
|
---|
1187 | return ViewCellsManager::KD;
|
---|
1188 | }
|
---|
1189 |
|
---|
1190 |
|
---|
1191 |
|
---|
1192 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
1193 | {
|
---|
1194 | KdNode *node = leaf;
|
---|
1195 |
|
---|
1196 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
1197 | node = node->mParent;
|
---|
1198 | return node;
|
---|
1199 | }
|
---|
1200 |
|
---|
1201 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
1202 | const Vector3 &termination,
|
---|
1203 | ViewCellContainer &viewcells)
|
---|
1204 | {
|
---|
1205 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
1206 | }
|
---|
1207 |
|
---|
1208 |
|
---|
1209 |
|
---|
1210 | /**********************************************************************/
|
---|
1211 | /* VspKdViewCellsManager implementation */
|
---|
1212 | /**********************************************************************/
|
---|
1213 |
|
---|
1214 | VspKdViewCellsManager::VspKdViewCellsManager(VspKdTree *vspKdTree,
|
---|
1215 | int constructionSamples):
|
---|
1216 | ViewCellsManager(constructionSamples),
|
---|
1217 | mVspKdTree(vspKdTree)
|
---|
1218 | {
|
---|
1219 | mVspKdTree->SetViewCellsManager(this);
|
---|
1220 | }
|
---|
1221 |
|
---|
1222 | float VspKdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
1223 | {
|
---|
1224 | // volume or area substitutes for view point probability
|
---|
1225 | AxisAlignedBox3 box = mVspKdTree->GetBBox(mVspKdTree->GetRoot());
|
---|
1226 |
|
---|
1227 | return GetArea(viewCell) / box.SurfaceArea();
|
---|
1228 | //return GetArea(viewCell) / GetAccVcArea();
|
---|
1229 | }
|
---|
1230 |
|
---|
1231 |
|
---|
1232 | float VspKdViewCellsManager::GetRendercost(ViewCell *viewCell, float objRendercost) const
|
---|
1233 | {
|
---|
1234 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
1235 | }
|
---|
1236 |
|
---|
1237 |
|
---|
1238 | int VspKdViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
1239 | const VssRayContainer &rays,
|
---|
1240 | AxisAlignedBox3 *sceneBbox)
|
---|
1241 | {
|
---|
1242 | // if view cells already constructed
|
---|
1243 | if (ViewCellsConstructed())
|
---|
1244 | return 0;
|
---|
1245 |
|
---|
1246 | VssRayContainer constructionRays;
|
---|
1247 | VssRayContainer savedRays;
|
---|
1248 |
|
---|
1249 | GetRaySets(rays, constructionRays, savedRays);
|
---|
1250 |
|
---|
1251 | Debug << "constructing vsp kd tree using "
|
---|
1252 | << (int)constructionRays.size() << " samples" << endl;
|
---|
1253 |
|
---|
1254 | mVspKdTree->Construct(constructionRays, sceneBbox);
|
---|
1255 | mVspKdTree->CollectViewCells(mViewCells);
|
---|
1256 | //mVspBspTree->EvaluateViewCellsStats(mViewCellsStats);
|
---|
1257 |
|
---|
1258 | Debug << mVspKdTree->GetStatistics() << endl;
|
---|
1259 |
|
---|
1260 | // finally merge kd leaf building blocks to view cells
|
---|
1261 | const int merged = mVspKdTree->MergeLeaves();
|
---|
1262 |
|
---|
1263 | // recast rest of rays
|
---|
1264 | ComputeSampleContributions(savedRays);
|
---|
1265 |
|
---|
1266 | return merged;
|
---|
1267 | }
|
---|
1268 |
|
---|
1269 | bool VspKdViewCellsManager::ViewCellsConstructed() const
|
---|
1270 | {
|
---|
1271 | return mVspKdTree->GetRoot() != NULL;
|
---|
1272 | }
|
---|
1273 |
|
---|
1274 |
|
---|
1275 | ViewCell *VspKdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
1276 | {
|
---|
1277 | return new VspKdViewCell(mesh);
|
---|
1278 | }
|
---|
1279 |
|
---|
1280 | int VspKdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
1281 | const VssRayContainer &rays)
|
---|
1282 | {
|
---|
1283 | if (!ViewCellsConstructed())
|
---|
1284 | return 0;
|
---|
1285 |
|
---|
1286 | return 0;
|
---|
1287 | }
|
---|
1288 |
|
---|
1289 | AxisAlignedBox3 VspKdViewCellsManager::GetSceneBbox() const
|
---|
1290 | {
|
---|
1291 | return mVspKdTree->GetBBox(mVspKdTree->GetRoot());
|
---|
1292 | }
|
---|
1293 |
|
---|
1294 | void VspKdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
1295 | const VssRayContainer &sampleRays)
|
---|
1296 | {
|
---|
1297 | bool exportRays = false;
|
---|
1298 | bool exportGeometry = false;
|
---|
1299 |
|
---|
1300 | environment->GetBoolValue("VspKdTree.Visualization.exportRays", exportRays);
|
---|
1301 | environment->GetBoolValue("VspKdTree.Visualization.exportGeometry", exportGeometry);
|
---|
1302 |
|
---|
1303 | if (!ViewCellsConstructed())
|
---|
1304 | return;
|
---|
1305 |
|
---|
1306 | //-- export tree leaves
|
---|
1307 | if (1)
|
---|
1308 | {
|
---|
1309 | Exporter *exporter = Exporter::GetExporter("vspkdtree.x3d");
|
---|
1310 | //exporter->SetWireframe();
|
---|
1311 | //exporter->ExportVspKdTree(*mVspKdTree, mVspKdTree->GetStatistics().maxPvsSize);
|
---|
1312 | exporter->ExportVspKdTree(*mVspKdTree);
|
---|
1313 |
|
---|
1314 | if (1)
|
---|
1315 | exporter->ExportGeometry(objects);
|
---|
1316 |
|
---|
1317 | if (exportRays)
|
---|
1318 | {
|
---|
1319 | int raysSize = 2000;
|
---|
1320 | float prob = raysSize / (float)sampleRays.size();
|
---|
1321 |
|
---|
1322 | exporter->SetWireframe();
|
---|
1323 |
|
---|
1324 | VssRayContainer rays;
|
---|
1325 |
|
---|
1326 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
1327 | {
|
---|
1328 | if (RandomValue(0,1) < prob)
|
---|
1329 | rays.push_back(sampleRays[i]);
|
---|
1330 | }
|
---|
1331 |
|
---|
1332 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
1333 | }
|
---|
1334 |
|
---|
1335 | delete exporter;
|
---|
1336 | }
|
---|
1337 |
|
---|
1338 | //-- export single leaves
|
---|
1339 | if (1)
|
---|
1340 | {
|
---|
1341 | vector<VspKdLeaf *> leafContainer;
|
---|
1342 | mVspKdTree->CollectLeaves(leafContainer);
|
---|
1343 |
|
---|
1344 | for (int i = 0; i < 10; ++ i)
|
---|
1345 | {
|
---|
1346 | char s[64];
|
---|
1347 | sprintf(s, "vsp_leaves%04d.x3d", i);
|
---|
1348 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1349 |
|
---|
1350 | // export geometry
|
---|
1351 | VspKdLeaf *leaf = leafContainer[(int)RandomValue(0.0, (Real)((int)leafContainer.size() - 1))];
|
---|
1352 | AxisAlignedBox3 box = mVspKdTree->GetBBox(leaf);
|
---|
1353 |
|
---|
1354 | Material m;
|
---|
1355 | m.mDiffuseColor = RgbColor(0, 1, 1);
|
---|
1356 | exporter->SetForcedMaterial(m);
|
---|
1357 | exporter->SetWireframe();
|
---|
1358 | exporter->ExportBox(box);
|
---|
1359 |
|
---|
1360 | //-- export stored rays
|
---|
1361 | VssRayContainer vssRays;
|
---|
1362 | leaf->GetRays(vssRays);
|
---|
1363 |
|
---|
1364 | VssRayContainer rays;
|
---|
1365 | VssRayContainer::const_iterator it, it_end = vssRays.end();
|
---|
1366 |
|
---|
1367 | for (it = vssRays.begin(); it != it_end; ++ it)
|
---|
1368 | rays.push_back(*it);
|
---|
1369 |
|
---|
1370 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
1371 |
|
---|
1372 | //-- export stored PVS
|
---|
1373 | ObjectContainer pvsObj;
|
---|
1374 | leaf->ExtractPvs(pvsObj);
|
---|
1375 |
|
---|
1376 | exporter->ExportGeometry(pvsObj);
|
---|
1377 |
|
---|
1378 | delete exporter;
|
---|
1379 | }
|
---|
1380 | }
|
---|
1381 |
|
---|
1382 | //-- export final view cells
|
---|
1383 | Exporter *exporter = Exporter::GetExporter("vspkdtree_merged.x3d");
|
---|
1384 | exporter->SetWireframe();
|
---|
1385 | //exporter->ExportVspKdTreeViewCells(*mVspKdTree, vcStats.maxPvs);
|
---|
1386 | exporter->ExportVspKdTreeViewCells(*mVspKdTree);
|
---|
1387 |
|
---|
1388 | if (1)
|
---|
1389 | {
|
---|
1390 | exporter->SetFilled();
|
---|
1391 | exporter->ExportGeometry(objects);
|
---|
1392 | }
|
---|
1393 |
|
---|
1394 | if (exportRays)
|
---|
1395 | {
|
---|
1396 | int raysSize = 2000;
|
---|
1397 | float prob = raysSize / (float)sampleRays.size();
|
---|
1398 |
|
---|
1399 | exporter->SetWireframe();
|
---|
1400 |
|
---|
1401 | VssRayContainer rays;
|
---|
1402 |
|
---|
1403 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
1404 | {
|
---|
1405 | if (RandomValue(0,1) < prob)
|
---|
1406 | rays.push_back(sampleRays[i]);
|
---|
1407 | }
|
---|
1408 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
1409 | }
|
---|
1410 |
|
---|
1411 | delete exporter;
|
---|
1412 | }
|
---|
1413 |
|
---|
1414 | int VspKdViewCellsManager::GetType() const
|
---|
1415 | {
|
---|
1416 | return VSP_KD;
|
---|
1417 | }
|
---|
1418 |
|
---|
1419 |
|
---|
1420 | int VspKdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
1421 | const Vector3 &termination,
|
---|
1422 | ViewCellContainer &viewcells)
|
---|
1423 | {
|
---|
1424 | return mVspKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
1425 | }
|
---|
1426 |
|
---|
1427 |
|
---|
1428 |
|
---|
1429 | /**********************************************************************/
|
---|
1430 | /* VspBspViewCellsManager implementation */
|
---|
1431 | /**********************************************************************/
|
---|
1432 |
|
---|
1433 | VspBspViewCellsManager::VspBspViewCellsManager(VspBspTree *vspBspTree,
|
---|
1434 | int constructionSamples):
|
---|
1435 | ViewCellsManager(constructionSamples),
|
---|
1436 | mVspBspTree(vspBspTree)
|
---|
1437 | {
|
---|
1438 | }
|
---|
1439 |
|
---|
1440 |
|
---|
1441 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
1442 | {
|
---|
1443 | CLEAR_CONTAINER(mBspRays);
|
---|
1444 | }
|
---|
1445 |
|
---|
1446 |
|
---|
1447 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
1448 | {
|
---|
1449 | #if 0
|
---|
1450 | return GetArea(viewCell) / mVspBspTree->GetBbox().SurfaceArea();
|
---|
1451 | #else
|
---|
1452 | return GetArea(viewCell) / GetAccVcArea();
|
---|
1453 | #endif
|
---|
1454 | }
|
---|
1455 |
|
---|
1456 |
|
---|
1457 | float VspBspViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
1458 | {
|
---|
1459 | PolygonContainer geom;
|
---|
1460 |
|
---|
1461 | // compute view cell area
|
---|
1462 | mVspBspTree->ConstructGeometry(dynamic_cast<BspViewCell *>(viewCell), geom);
|
---|
1463 |
|
---|
1464 | const float area = Polygon3::GetArea(geom);
|
---|
1465 | CLEAR_CONTAINER(geom);
|
---|
1466 |
|
---|
1467 | return area;
|
---|
1468 | }
|
---|
1469 |
|
---|
1470 |
|
---|
1471 | float VspBspViewCellsManager::GetRendercost(ViewCell *viewCell,
|
---|
1472 | float objRendercost) const
|
---|
1473 | {
|
---|
1474 | return viewCell->GetPvs().GetSize() * objRendercost;
|
---|
1475 | }
|
---|
1476 |
|
---|
1477 |
|
---|
1478 | AxisAlignedBox3 VspBspViewCellsManager::GetSceneBbox() const
|
---|
1479 | {
|
---|
1480 | return mVspBspTree->GetBoundingBox();
|
---|
1481 | }
|
---|
1482 |
|
---|
1483 |
|
---|
1484 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
1485 | {
|
---|
1486 | return mVspBspTree->GetRoot() != NULL;
|
---|
1487 | }
|
---|
1488 |
|
---|
1489 |
|
---|
1490 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
1491 | {
|
---|
1492 | return new BspViewCell(mesh);
|
---|
1493 | }
|
---|
1494 |
|
---|
1495 | int VspBspViewCellsManager::Construct(const ObjectContainer &objects,
|
---|
1496 | const VssRayContainer &rays,
|
---|
1497 | AxisAlignedBox3 *sceneBbox)
|
---|
1498 | {
|
---|
1499 | // if view cells were already constructed
|
---|
1500 | if (ViewCellsConstructed())
|
---|
1501 | return 0;
|
---|
1502 |
|
---|
1503 | int sampleContributions = 0;
|
---|
1504 |
|
---|
1505 | VssRayContainer constructionRays;
|
---|
1506 | VssRayContainer savedRays;
|
---|
1507 |
|
---|
1508 | GetRaySets(rays, constructionRays, savedRays);
|
---|
1509 |
|
---|
1510 | mVspBspTree->Construct(constructionRays);
|
---|
1511 | mVspBspTree->CollectViewCells(mViewCells);
|
---|
1512 | mVspBspTree->EvaluateViewCellsStats(mViewCellsStats);
|
---|
1513 |
|
---|
1514 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
1515 |
|
---|
1516 | // recast rest of rays
|
---|
1517 | ComputeSampleContributions(savedRays);
|
---|
1518 |
|
---|
1519 | return sampleContributions;
|
---|
1520 | }
|
---|
1521 |
|
---|
1522 |
|
---|
1523 | void VspBspViewCellsManager::ConstructBspRays(const VssRayContainer &rays,
|
---|
1524 | const int numSamples)
|
---|
1525 | {
|
---|
1526 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
1527 |
|
---|
1528 | for (it = rays.begin(); it != rays.end() && mBspRays.size() < numSamples; ++ it)
|
---|
1529 | {
|
---|
1530 | VssRay *vssRay = *it;
|
---|
1531 | BspRay *ray = new BspRay(vssRay);
|
---|
1532 |
|
---|
1533 | ViewCellContainer viewCells;
|
---|
1534 |
|
---|
1535 | CastLineSegment(vssRay->mTermination, vssRay->mOrigin, viewCells);
|
---|
1536 |
|
---|
1537 | ViewCellContainer::const_iterator vit, vit_end = viewCells.end();
|
---|
1538 |
|
---|
1539 | for (vit = viewCells.begin(); vit != vit_end; ++ vit)
|
---|
1540 | {
|
---|
1541 | BspViewCell *vc = dynamic_cast<BspViewCell *>(*vit);
|
---|
1542 | ray->intersections.push_back(BspIntersection(0, vc->mLeaves[0]));
|
---|
1543 | }
|
---|
1544 |
|
---|
1545 | mBspRays.push_back(ray);
|
---|
1546 | }
|
---|
1547 | }
|
---|
1548 |
|
---|
1549 |
|
---|
1550 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
1551 | const VssRayContainer &rays)
|
---|
1552 | {
|
---|
1553 | if (mBspRays.empty())
|
---|
1554 | ConstructBspRays(rays, mConstructionSamples);
|
---|
1555 |
|
---|
1556 | if (!ViewCellsConstructed())
|
---|
1557 | {
|
---|
1558 | Debug << "view cells not constructed" << endl;
|
---|
1559 | return 0;
|
---|
1560 | }
|
---|
1561 |
|
---|
1562 | //-- post processing of bsp view cells
|
---|
1563 | int vcSize = 0;
|
---|
1564 | int pvsSize = 0;
|
---|
1565 |
|
---|
1566 | Debug << "original view cell partition:\n" << mViewCellsStats << endl;
|
---|
1567 |
|
---|
1568 | if (1) // export view cells
|
---|
1569 | {
|
---|
1570 | cout << "exporting initial view cells (=leaves) ... ";
|
---|
1571 | Exporter *exporter = Exporter::GetExporter("view_cells.x3d");
|
---|
1572 |
|
---|
1573 | if (exporter)
|
---|
1574 | {
|
---|
1575 | //exporter->SetWireframe();
|
---|
1576 | exporter->SetFilled();
|
---|
1577 | exporter->ExportBspViewCellPartition(*mVspBspTree, mViewCellsStats.maxPvs);
|
---|
1578 |
|
---|
1579 | if (0)
|
---|
1580 | {
|
---|
1581 | Material m;
|
---|
1582 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
1583 | exporter->SetForcedMaterial(m);
|
---|
1584 | exporter->SetWireframe();
|
---|
1585 |
|
---|
1586 | exporter->ExportGeometry(objects);
|
---|
1587 | }
|
---|
1588 |
|
---|
1589 | delete exporter;
|
---|
1590 | }
|
---|
1591 | cout << "finished" << endl;
|
---|
1592 | }
|
---|
1593 |
|
---|
1594 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
1595 |
|
---|
1596 | long startTime = GetTime();
|
---|
1597 |
|
---|
1598 |
|
---|
1599 | // $$JB we do not have connectivity information from the ray in the moment
|
---|
1600 | // perhaps we could recast the rays or rember the cells traversed inside the
|
---|
1601 | // vssray (which would on other hand create some overhead)
|
---|
1602 | //-- merge or subdivide view cells
|
---|
1603 | int merged = 0;
|
---|
1604 |
|
---|
1605 | vector<BspIntersection>::const_iterator iit;
|
---|
1606 |
|
---|
1607 | for (int i = 0; i < (int)mBspRays.size(); ++ i)
|
---|
1608 | {
|
---|
1609 | BspRay *ray = mBspRays[i];
|
---|
1610 |
|
---|
1611 | // traverse leaves stored in the rays and compare and merge consecutive
|
---|
1612 | // leaves (i.e., the neighbors in the tree)
|
---|
1613 | if (ray->intersections.size() < 2)
|
---|
1614 | continue;
|
---|
1615 |
|
---|
1616 | iit = ray->intersections.begin();
|
---|
1617 |
|
---|
1618 | BspLeaf *previousLeaf = (*iit).mLeaf;
|
---|
1619 | ++ iit;
|
---|
1620 |
|
---|
1621 | for (; iit != ray->intersections.end(); ++ iit)
|
---|
1622 | {
|
---|
1623 | BspLeaf *leaf = (*iit).mLeaf;
|
---|
1624 |
|
---|
1625 | if (ShouldMerge(leaf, previousLeaf))
|
---|
1626 | {
|
---|
1627 | MergeVspBspLeafViewCells(leaf, previousLeaf);
|
---|
1628 |
|
---|
1629 | ++ merged;
|
---|
1630 | }
|
---|
1631 |
|
---|
1632 | previousLeaf = leaf;
|
---|
1633 | }
|
---|
1634 | }
|
---|
1635 |
|
---|
1636 | //-- stats and visualizations
|
---|
1637 | cout << "finished" << endl;
|
---|
1638 | cout << "merged " << merged << " view cells in "
|
---|
1639 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
1640 |
|
---|
1641 | Debug << "Postprocessing: Merged " << merged << " view cells in "
|
---|
1642 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
1643 |
|
---|
1644 | // reset view cells and stats
|
---|
1645 | mViewCells.clear();
|
---|
1646 | mVspBspTree->CollectViewCells(mViewCells);
|
---|
1647 | mViewCellsStats.Reset();
|
---|
1648 | mVspBspTree->EvaluateViewCellsStats(mViewCellsStats);
|
---|
1649 |
|
---|
1650 | return merged;
|
---|
1651 | }
|
---|
1652 |
|
---|
1653 | int VspBspViewCellsManager::GetType() const
|
---|
1654 | {
|
---|
1655 | return VSP_BSP;
|
---|
1656 | }
|
---|
1657 |
|
---|
1658 |
|
---|
1659 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
1660 | const VssRayContainer &sampleRays)
|
---|
1661 | {
|
---|
1662 | if (!ViewCellsConstructed())
|
---|
1663 | return;
|
---|
1664 |
|
---|
1665 | if (mBspRays.empty())
|
---|
1666 | ConstructBspRays(sampleRays, mConstructionSamples);
|
---|
1667 |
|
---|
1668 | if (1) // export view cells
|
---|
1669 | {
|
---|
1670 | cout << "exporting view cells after merge ... ";
|
---|
1671 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.x3d");
|
---|
1672 |
|
---|
1673 | if (exporter)
|
---|
1674 | {
|
---|
1675 | exporter->ExportBspViewCellPartition(*mVspBspTree, mViewCellsStats.maxPvs);
|
---|
1676 | delete exporter;
|
---|
1677 | }
|
---|
1678 |
|
---|
1679 | cout << "finished" << endl;
|
---|
1680 | }
|
---|
1681 |
|
---|
1682 | //-- visualization of the BSP splits
|
---|
1683 | bool exportSplits = false;
|
---|
1684 | environment->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
1685 |
|
---|
1686 | if (exportSplits)
|
---|
1687 | {
|
---|
1688 | cout << "exporting splits ... ";
|
---|
1689 | ExportSplits(objects);
|
---|
1690 | cout << "finished" << endl;
|
---|
1691 | }
|
---|
1692 |
|
---|
1693 | ExportBspPvs(objects);
|
---|
1694 | }
|
---|
1695 |
|
---|
1696 |
|
---|
1697 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
1698 | {
|
---|
1699 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
1700 |
|
---|
1701 | if (exporter)
|
---|
1702 | {
|
---|
1703 | Material m;
|
---|
1704 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1705 | exporter->SetForcedMaterial(m);
|
---|
1706 | exporter->SetWireframe();
|
---|
1707 |
|
---|
1708 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
1709 |
|
---|
1710 | // take forced material, else big scenes cannot be viewed
|
---|
1711 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
1712 | exporter->SetForcedMaterial(m);
|
---|
1713 | exporter->SetFilled();
|
---|
1714 |
|
---|
1715 | exporter->ResetForcedMaterial();
|
---|
1716 |
|
---|
1717 | // export rays
|
---|
1718 | if (0)
|
---|
1719 | {
|
---|
1720 | VssRayContainer outRays;
|
---|
1721 |
|
---|
1722 | int raysSize = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
1723 |
|
---|
1724 | for (int i = 0; i < raysSize; ++ i)
|
---|
1725 | // only rays piercing geometry
|
---|
1726 | outRays.push_back(mBspRays[i]->vssRay);
|
---|
1727 |
|
---|
1728 | // export rays
|
---|
1729 | exporter->ExportRays(outRays, RgbColor(1, 1, 0));
|
---|
1730 | }
|
---|
1731 |
|
---|
1732 | if (0)
|
---|
1733 | exporter->ExportGeometry(objects);
|
---|
1734 |
|
---|
1735 | delete exporter;
|
---|
1736 | }
|
---|
1737 | }
|
---|
1738 |
|
---|
1739 | void VspBspViewCellsManager::ExportBspPvs(const ObjectContainer &objects)
|
---|
1740 | {
|
---|
1741 | bool exportRays = false;
|
---|
1742 | bool exportGeometry = false;
|
---|
1743 |
|
---|
1744 | environment->GetBoolValue("VspBspTree.Visualization.exportRays", exportRays);
|
---|
1745 | environment->GetBoolValue("VspBspTree.Visualization.exportGeometry", exportGeometry);
|
---|
1746 |
|
---|
1747 | const int leafOut = 10;
|
---|
1748 |
|
---|
1749 | ViewCell::NewMail();
|
---|
1750 |
|
---|
1751 | //-- some rays for output
|
---|
1752 | const int raysOut = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
1753 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
1754 | Debug << "\nOutput view cells: " << endl;
|
---|
1755 |
|
---|
1756 | if (1)
|
---|
1757 | {
|
---|
1758 | //-- some random view cells and rays for output
|
---|
1759 | vector<BspLeaf *> vspBspLeaves;
|
---|
1760 |
|
---|
1761 | for (int i = 0; i < leafOut; ++ i)
|
---|
1762 | vspBspLeaves.push_back(mVspBspTree->GetRandomLeaf());
|
---|
1763 |
|
---|
1764 | for (int i = 0; i < (int)vspBspLeaves.size(); ++ i)
|
---|
1765 | {
|
---|
1766 | VssRayContainer vcRays;
|
---|
1767 | cout << "creating output for view cell " << i << " ... ";
|
---|
1768 |
|
---|
1769 | // check whether we can add the current ray to the output rays
|
---|
1770 | for (int k = 0; k < raysOut; ++ k)
|
---|
1771 | {
|
---|
1772 | BspRay *ray = mBspRays[k];
|
---|
1773 |
|
---|
1774 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
1775 | {
|
---|
1776 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
1777 |
|
---|
1778 | if (vspBspLeaves[i]->GetViewCell() == leaf->GetViewCell())
|
---|
1779 | {
|
---|
1780 | vcRays.push_back(ray->vssRay);
|
---|
1781 | }
|
---|
1782 | }
|
---|
1783 | }
|
---|
1784 |
|
---|
1785 | Intersectable::NewMail();
|
---|
1786 |
|
---|
1787 | BspViewCell *vc = dynamic_cast<BspViewCell *>
|
---|
1788 | (vspBspLeaves[i]->GetViewCell());
|
---|
1789 |
|
---|
1790 | //bspLeaves[j]->Mail();
|
---|
1791 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
1792 |
|
---|
1793 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1794 | exporter->SetFilled();
|
---|
1795 |
|
---|
1796 | ObjectPvsMap::iterator it = vc->GetPvs().mEntries.begin();
|
---|
1797 |
|
---|
1798 | exporter->SetWireframe();
|
---|
1799 | //exporter->SetFilled();
|
---|
1800 |
|
---|
1801 | Material m;//= RandomMaterial();
|
---|
1802 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
1803 | exporter->SetForcedMaterial(m);
|
---|
1804 |
|
---|
1805 | if (vc->GetMesh())
|
---|
1806 | exporter->ExportViewCell(vc);
|
---|
1807 | else
|
---|
1808 | {
|
---|
1809 | PolygonContainer vcGeom;
|
---|
1810 |
|
---|
1811 | // export view cell geometry
|
---|
1812 | mVspBspTree->ConstructGeometry(vc, vcGeom);
|
---|
1813 | exporter->ExportPolygons(vcGeom);
|
---|
1814 | CLEAR_CONTAINER(vcGeom);
|
---|
1815 | }
|
---|
1816 |
|
---|
1817 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
1818 | << ", piercing rays=" << (int)vcRays.size() << endl;
|
---|
1819 |
|
---|
1820 | // export rays piercing this view cell
|
---|
1821 | if (exportRays)
|
---|
1822 | {
|
---|
1823 | //exporter->ExportRays(vcRays, RgbColor(1, 0, 0));
|
---|
1824 | exporter->ExportRays(vspBspLeaves[i]->mVssRays, RgbColor(1, 1, 1));
|
---|
1825 | }
|
---|
1826 |
|
---|
1827 | m.mDiffuseColor = RgbColor(0, 1, 1);
|
---|
1828 | exporter->SetForcedMaterial(m);
|
---|
1829 |
|
---|
1830 | //exporter->SetWireframe();
|
---|
1831 | exporter->SetFilled();
|
---|
1832 |
|
---|
1833 | // output PVS of view cell
|
---|
1834 | for (; it != vc->GetPvs().mEntries.end(); ++ it)
|
---|
1835 | {
|
---|
1836 | Intersectable *intersect = (*it).first;
|
---|
1837 | if (!intersect->Mailed())
|
---|
1838 | {
|
---|
1839 | exporter->ExportIntersectable(intersect);
|
---|
1840 | intersect->Mail();
|
---|
1841 | }
|
---|
1842 | }
|
---|
1843 | Debug << "here1 exportgeom: " << exportGeometry << endl;
|
---|
1844 | // output rest of the objects
|
---|
1845 | if (exportGeometry)
|
---|
1846 | {
|
---|
1847 | Material m;//= RandomMaterial();
|
---|
1848 | m.mDiffuseColor = RgbColor(0, 0, 1);
|
---|
1849 | exporter->SetForcedMaterial(m);
|
---|
1850 |
|
---|
1851 | for (int j = 0; j < objects.size(); ++ j)
|
---|
1852 | if (!objects[j]->Mailed())
|
---|
1853 | {
|
---|
1854 | exporter->SetForcedMaterial(m);
|
---|
1855 | exporter->ExportIntersectable(objects[j]);
|
---|
1856 | objects[j]->Mail();
|
---|
1857 | }
|
---|
1858 | }
|
---|
1859 | DEL_PTR(exporter);
|
---|
1860 | cout << "finished" << endl;
|
---|
1861 | }
|
---|
1862 | }
|
---|
1863 | else
|
---|
1864 | {
|
---|
1865 | ViewCellContainer viewCells;
|
---|
1866 |
|
---|
1867 | mVspBspTree->CollectViewCells(viewCells);
|
---|
1868 | stable_sort(viewCells.begin(), viewCells.end(), vc_gt);
|
---|
1869 |
|
---|
1870 | int limit = min(leafOut, (int)viewCells.size());
|
---|
1871 |
|
---|
1872 | for (int i = 0; i < limit; ++ i)
|
---|
1873 | {
|
---|
1874 | cout << "creating output for view cell " << i << " ... ";
|
---|
1875 | VssRayContainer vcRays;
|
---|
1876 | Intersectable::NewMail();
|
---|
1877 | BspViewCell *vc = dynamic_cast<BspViewCell *>(viewCells[i]);
|
---|
1878 |
|
---|
1879 | cout << "creating output for view cell " << i << " ... ";
|
---|
1880 |
|
---|
1881 | // check whether we can add the current ray to the output rays
|
---|
1882 | for (int k = 0; k < raysOut; ++ k)
|
---|
1883 | {
|
---|
1884 | BspRay *ray = mBspRays[k];
|
---|
1885 |
|
---|
1886 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
1887 | {
|
---|
1888 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
1889 |
|
---|
1890 | if (vc == leaf->GetViewCell())
|
---|
1891 | {
|
---|
1892 | vcRays.push_back(ray->vssRay);
|
---|
1893 | }
|
---|
1894 | }
|
---|
1895 | }
|
---|
1896 |
|
---|
1897 | //bspLeaves[j]->Mail();
|
---|
1898 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
1899 |
|
---|
1900 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
1901 |
|
---|
1902 | exporter->SetWireframe();
|
---|
1903 |
|
---|
1904 | Material m;//= RandomMaterial();
|
---|
1905 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
1906 | exporter->SetForcedMaterial(m);
|
---|
1907 |
|
---|
1908 | if (vc->GetMesh())
|
---|
1909 | exporter->ExportViewCell(vc);
|
---|
1910 | else
|
---|
1911 | {
|
---|
1912 | PolygonContainer vcGeom;
|
---|
1913 | // export view cell
|
---|
1914 | mVspBspTree->ConstructGeometry(vc, vcGeom);
|
---|
1915 | exporter->ExportPolygons(vcGeom);
|
---|
1916 | CLEAR_CONTAINER(vcGeom);
|
---|
1917 | }
|
---|
1918 |
|
---|
1919 |
|
---|
1920 | Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize()
|
---|
1921 | << ", piercing rays=" << (int)vcRays.size() << endl;
|
---|
1922 |
|
---|
1923 |
|
---|
1924 | // export rays piercing this view cell
|
---|
1925 | exporter->ExportRays(vcRays, RgbColor(0, 1, 0));
|
---|
1926 |
|
---|
1927 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
1928 | exporter->SetForcedMaterial(m);
|
---|
1929 |
|
---|
1930 | ObjectPvsMap::const_iterator it,
|
---|
1931 | it_end = vc->GetPvs().mEntries.end();
|
---|
1932 |
|
---|
1933 | // output PVS of view cell
|
---|
1934 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
1935 | {
|
---|
1936 | Intersectable *intersect = (*it).first;
|
---|
1937 |
|
---|
1938 | if (!intersect->Mailed())
|
---|
1939 | {
|
---|
1940 | Material m = RandomMaterial();
|
---|
1941 |
|
---|
1942 | exporter->SetForcedMaterial(m);
|
---|
1943 |
|
---|
1944 | exporter->ExportIntersectable(intersect);
|
---|
1945 | intersect->Mail();
|
---|
1946 | }
|
---|
1947 | }
|
---|
1948 |
|
---|
1949 | DEL_PTR(exporter);
|
---|
1950 | cout << "finished" << endl;
|
---|
1951 | }
|
---|
1952 | }
|
---|
1953 |
|
---|
1954 | Debug << endl;
|
---|
1955 | }
|
---|
1956 |
|
---|
1957 |
|
---|
1958 | bool VspBspViewCellsManager::MergeVspBspLeafViewCells(BspLeaf *front,
|
---|
1959 | BspLeaf *back) const
|
---|
1960 | {
|
---|
1961 | BspViewCell *viewCell =
|
---|
1962 | dynamic_cast<BspViewCell *>(MergeViewCells(*front->GetViewCell(),
|
---|
1963 | *back->GetViewCell()));
|
---|
1964 |
|
---|
1965 | if (!viewCell)
|
---|
1966 | return false;
|
---|
1967 |
|
---|
1968 | // change view cells of all leaves
|
---|
1969 | // associated with the previous view cells
|
---|
1970 | BspViewCell *fVc = front->GetViewCell();
|
---|
1971 | BspViewCell *bVc = back->GetViewCell();
|
---|
1972 |
|
---|
1973 | vector<BspLeaf *> fLeaves = fVc->mLeaves;
|
---|
1974 | vector<BspLeaf *> bLeaves = bVc->mLeaves;
|
---|
1975 |
|
---|
1976 | vector<BspLeaf *>::const_iterator it;
|
---|
1977 |
|
---|
1978 | for (it = fLeaves.begin(); it != fLeaves.end(); ++ it)
|
---|
1979 | {
|
---|
1980 | (*it)->SetViewCell(viewCell);
|
---|
1981 | viewCell->mLeaves.push_back(*it);
|
---|
1982 | }
|
---|
1983 | for (it = bLeaves.begin(); it != bLeaves.end(); ++ it)
|
---|
1984 | {
|
---|
1985 | (*it)->SetViewCell(viewCell);
|
---|
1986 | viewCell->mLeaves.push_back(*it);
|
---|
1987 | }
|
---|
1988 |
|
---|
1989 | DEL_PTR(fVc);
|
---|
1990 | DEL_PTR(bVc);
|
---|
1991 |
|
---|
1992 | return true;
|
---|
1993 | }
|
---|
1994 |
|
---|
1995 | bool VspBspViewCellsManager::ShouldMerge(BspLeaf *front, BspLeaf *back) const
|
---|
1996 | {
|
---|
1997 | ViewCell *fvc = front->GetViewCell();
|
---|
1998 | ViewCell *bvc = back->GetViewCell();
|
---|
1999 |
|
---|
2000 | if ((fvc == mVspBspTree->GetRootCell()) ||
|
---|
2001 | (bvc == mVspBspTree->GetRootCell()) ||
|
---|
2002 | (fvc == bvc))
|
---|
2003 | return false;
|
---|
2004 |
|
---|
2005 | const int fdiff = fvc->GetPvs().Diff(bvc->GetPvs());
|
---|
2006 |
|
---|
2007 | if (fvc->GetPvs().GetSize() + fdiff < mMaxPvs)
|
---|
2008 | {
|
---|
2009 | if ((fvc->GetPvs().GetSize() < mMinPvs) ||
|
---|
2010 | (bvc->GetPvs().GetSize() < mMinPvs) ||
|
---|
2011 | ((fdiff < mMinPvsDif) && (bvc->GetPvs().Diff(fvc->GetPvs()) < mMinPvsDif)))
|
---|
2012 | {
|
---|
2013 | return true;
|
---|
2014 | }
|
---|
2015 | }
|
---|
2016 |
|
---|
2017 | return false;
|
---|
2018 | }
|
---|
2019 |
|
---|
2020 |
|
---|
2021 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
2022 | const Vector3 &termination,
|
---|
2023 | ViewCellContainer &viewcells)
|
---|
2024 | {
|
---|
2025 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
2026 | }
|
---|