Changeset 429 for trunk/VUT/GtpVisibilityPreprocessor

Timestamp:

11/24/05 03:42:19 (19 years ago)

Author:

mattausch

Message:

 

Location:

trunk/VUT/GtpVisibilityPreprocessor/src

Files:

• Preprocessor.cpp (modified) (1 diff)
• Preprocessor.h (modified) (3 diffs)
• SamplingPreprocessor.cpp (modified) (7 diffs)
• SamplingPreprocessor.h (modified) (2 diffs)
• VssPreprocessor.cpp (modified) (5 diffs)
• VssPreprocessor.h (modified) (1 diff)
• VssRay.h (modified) (2 diffs)

trunk/VUT/GtpVisibilityPreprocessor/src/Preprocessor.cpp

@@ -245 +245 @@
   return false;
 }
+
+
+void Preprocessor::ExportSplits(const ObjectContainer &objects,
+                                                                const RayContainer &sampleRays,
+                                                                const int visSamples)
+{
+        Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
+
+        if (exporter) 
+        {       
+                Material m; 
+                m.mDiffuseColor = RgbColor(1, 0, 0);
+                exporter->SetForcedMaterial(m);
+                exporter->SetWireframe();
+                exporter->ExportBspSplits(*mBspTree, true);
+
+                // take forced material, else big scenes cannot be viewed
+                m.mDiffuseColor = RgbColor(0, 1, 0);
+                exporter->SetForcedMaterial(m);
+                exporter->SetFilled();
+
+                exporter->ResetForcedMaterial();
+                
+                // export rays
+                if (0)
+                {
+                        RayContainer outRays;
+                
+                        for (int i = 0; i < sampleRays.size(); ++ i)
+                        {
+                                // only rays piercing geometry
+                                if (!sampleRays[i]->intersections.empty())
+                                        outRays.push_back(sampleRays[i]);
+                        }
+                        if (BspTree::sConstructionMethod == BspTree::FROM_SAMPLES)
+                        {
+                                // export rays 
+                                exporter->ExportRays(outRays, 1000, RgbColor(1, 1, 0));
+                        }
+                }
+
+                if (1)
+                        ExportSceneGeometry(exporter, objects);
+
+                delete exporter;
+        }
+}
+
+inline bool vc_gt(ViewCell *a, ViewCell *b) 
+{ 
+        return a->GetPvs().GetSize() > b->GetPvs().GetSize();
+}
+
+void Preprocessor::ExportBspPvs(const ObjectContainer &objects,
+                                                                const RayContainer &sampleRays,
+                                                                const int visSamples)
+{
+        const int leafOut = 10;
+        
+        ViewCell::NewMail();
+
+        //-- some rays for output
+        const int raysOut = min((int)sampleRays.size(), visSamples);
+        cout << "visualization using " << visSamples << " samples" << endl;
+        vector<Ray *> vcRays[leafOut];
+
+        if (0)
+        {
+                //-- some random view cells and rays for output
+                vector<BspLeaf *> bspLeaves;
+
+                for (int i = 0; i < leafOut; ++ i)
+                        bspLeaves.push_back(mBspTree->GetRandomLeaf()); 
+                
+                for (int i = 0; i < bspLeaves.size(); ++ i)
+                {
+                        cout << "creating output for view cell " << i << " ... ";
+                        // check whether we can add the current ray to the output rays
+                        for (int k = 0; k < raysOut; ++ k) 
+                        {
+                                Ray *ray = sampleRays[k];
+
+                                for     (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
+                                {
+                                        BspLeaf *leaf = ray->bspIntersections[j].mLeaf;
+
+                                        if (bspLeaves[i]->GetViewCell() == leaf->GetViewCell()) 
+                                        {
+                                                vcRays[i].push_back(ray);
+                                        }
+                                }
+                        }
+
+                        Intersectable::NewMail();
+
+                        BspViewCell *vc = dynamic_cast<BspViewCell *>(bspLeaves[i]->GetViewCell());
+
+                        //bspLeaves[j]->Mail();
+                        char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
+
+                        Exporter *exporter = Exporter::GetExporter(s);
+                        exporter->SetFilled();
+
+                        ViewCellPvsMap::iterator it = vc->GetPvs().mEntries.begin();
+
+                        exporter->SetWireframe();
+                        //exporter->SetFilled();
+
+                        Material m;//= RandomMaterial();
+                        m.mDiffuseColor = RgbColor(0, 1, 0);
+                        exporter->SetForcedMaterial(m);
+
+                        if (vc->GetMesh())
+                                exporter->ExportViewCell(vc);
+                        else
+                        {
+                                PolygonContainer cell;
+                                // export view cell geometry
+                                mBspTree->ConstructGeometry(vc, cell);
+                                exporter->ExportPolygons(cell);
+                                CLEAR_CONTAINER(cell);
+                        }
+
+                        Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize() 
+                                        << ", piercing rays=" << (int)vcRays[i].size() << endl;
+
+                        // export rays piercing this view cell
+                        exporter->ExportRays(vcRays[i], 1000, RgbColor(0, 1, 0));
+
+                        m.mDiffuseColor = RgbColor(1, 0, 0);
+                        exporter->SetForcedMaterial(m);
+
+                        // exporter->SetWireframe();
+                        exporter->SetFilled();
+
+                        // output PVS of view cell
+                        for (; it != vc->GetPvs().mEntries.end(); ++ it) 
+                        {
+                                Intersectable *intersect = (*it).first;
+                                if (!intersect->Mailed())
+                                {
+                                        exporter->ExportIntersectable(intersect);
+                                        intersect->Mail();
+                                }                       
+                        }
+                                
+                        // output rest of the objects
+                        if (0)
+                        {
+                                Material m;//= RandomMaterial();
+                                m.mDiffuseColor = RgbColor(0, 0, 1);
+                                exporter->SetForcedMaterial(m);
+
+                                for (int j = 0; j < objects.size(); ++ j)
+                                        if (!objects[j]->Mailed())
+                                        {
+                                                exporter->SetForcedMaterial(m);
+                                                exporter->ExportIntersectable(objects[j]);
+                                                objects[j]->Mail();
+                                        }
+                        }
+                        DEL_PTR(exporter);
+                        cout << "finished" << endl;
+                }
+        }
+        else
+        {
+                ViewCellContainer viewCells;
+
+                mBspTree->CollectViewCells(viewCells);
+                stable_sort(viewCells.begin(), viewCells.end(), vc_gt);
+
+                int limit = min(leafOut, (int)viewCells.size()); 
+                
+                for (int i = 0; i < limit; ++ i)
+                {
+                        cout << "creating output for view cell " << i << " ... ";
+                        
+            Intersectable::NewMail();
+                        BspViewCell *vc = dynamic_cast<BspViewCell *>(viewCells[i]);
+
+                        cout << "creating output for view cell " << i << " ... ";
+                        // check whether we can add the current ray to the output rays
+                        for (int k = 0; k < raysOut; ++ k) 
+                        {
+                                Ray *ray = sampleRays[k];
+
+                                for     (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
+                                {
+                                        BspLeaf *leaf = ray->bspIntersections[j].mLeaf;
+
+                                        if (vc == leaf->GetViewCell()) 
+                                        {
+                                                vcRays[i].push_back(ray);
+                                        }
+                                }
+                        }
+
+                        //bspLeaves[j]->Mail();
+                        char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
+
+                        Exporter *exporter = Exporter::GetExporter(s);
+                        
+                        exporter->SetWireframe();
+
+                        Material m;//= RandomMaterial();
+                        m.mDiffuseColor = RgbColor(0, 1, 0);
+                        exporter->SetForcedMaterial(m);
+
+                        if (vc->GetMesh())
+                                exporter->ExportViewCell(vc);
+                        else
+                        {
+                                PolygonContainer cell;
+                                // export view cell
+                                mBspTree->ConstructGeometry(vc, cell);
+                                exporter->ExportPolygons(cell);
+                                CLEAR_CONTAINER(cell);
+                        }
+
+                        
+                        Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize() 
+                                        << ", piercing rays=" << (int)vcRays[i].size() << endl;
+
+                        
+                        // export rays piercing this view cell
+                        exporter->ExportRays(vcRays[i], 1000, RgbColor(0, 1, 0));
+        
+                        m.mDiffuseColor = RgbColor(1, 0, 0);
+                        exporter->SetForcedMaterial(m);
+
+                        ViewCellPvsMap::const_iterator it,
+                                it_end = vc->GetPvs().mEntries.end();
+
+                        // output PVS of view cell
+                        for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it) 
+                        {
+                                Intersectable *intersect = (*it).first;
+                                if (!intersect->Mailed())
+                                {
+                                        Material m = RandomMaterial();
+                        
+                                        exporter->SetForcedMaterial(m);
+
+                                        exporter->ExportIntersectable(intersect);
+                                        intersect->Mail();
+                                }                       
+                        }
+                                
+                        DEL_PTR(exporter);
+                        cout << "finished" << endl;
+                }
+        }
+}
+
+
+void Preprocessor::ExportSceneGeometry(Exporter *exporter, 
+                                                                           const ObjectContainer &objects)
+{
+        Material m;//= RandomMaterial();
+        m.mDiffuseColor = RgbColor(0, 1, 0);
+        exporter->SetForcedMaterial(m);
+        exporter->SetWireframe();
+
+        for (int j = 0; j < objects.size(); ++ j)
+                exporter->ExportIntersectable(objects[j]);
+}

trunk/VUT/GtpVisibilityPreprocessor/src/Preprocessor.h

@@ -13 +13 @@
 class RenderSimulator;
 class SceneGraph;
+class Exporter;
 
 /** Namespace for the external visibility preprocessor
@@ -92 +93 @@
   bool ParseViewCellsOptions();
 
+
   /// scene graph loaded from file
   SceneGraph *mSceneGraph;
@@ -117 +119 @@
   */
   VspKdTree *mVspKdTree;
+
+protected:
+  void ExportBspPvs(const ObjectContainer &objects,
+                                        const RayContainer &sampleRays,
+                                        const int visSamples);
+
+  void ExportSplits(const ObjectContainer &objects,
+                                        const RayContainer &sampleRays,
+                                        const int visSamples);
+
+  /** Export scene geometry.
+  */
+  void ExportSceneGeometry(Exporter *exporter, const ObjectContainer &objects);
+
+  int mBspConstructionSamples;
 };
 

trunk/VUT/GtpVisibilityPreprocessor/src/SamplingPreprocessor.cpp

@@ -122 +122 @@
 
 
+void
+SamplingPreprocessor::HoleSamplingPass()
+{
+  vector<KdLeaf *> leaves;
+  mKdTree->CollectLeaves(leaves);
+  
+  // go through all the leaves and evaluate their passing contribution
+  for (int i=0 ; i < leaves.size(); i++) {
+    KdLeaf *leaf = leaves[i];
+    cout<<leaf->mPassingRays<<endl;
+  }
+}
+
 int SamplingPreprocessor::AddObjectSamples(Intersectable *obj, const Ray &ray)
 {
@@ -149 +162 @@
  
         return contributingSamples;
-}
-
-
-void
-SamplingPreprocessor::HoleSamplingPass()
-{
-  vector<KdLeaf *> leaves;
-  mKdTree->CollectLeaves(leaves);
-  
-  // go through all the leaves and evaluate their passing contribution
-  for (int i=0 ; i < leaves.size(); i++) {
-    KdLeaf *leaf = leaves[i];
-    cout<<leaf->mPassingRays<<endl;
-  }
 }
 
@@ -450 +449 @@
                                                         direction = point - pointToSample;
                                                         point = pointToSample;
-                                                        Debug << "point: " << pointToSample << endl;
+                                                        //Debug << "point: " << pointToSample << endl;
                                                 }
                                         }
@@ -650 +649 @@
                 cout << "exporting splits ... ";
                 if (exportSplits)
-                        ExportSplits(objects);
+                        ExportSplits(objects, mSampleRays, mVisualizationSamples);
                 cout << "finished" << endl;
 
                 // export the PVS of sample view cells
                 if (1)
-                        ExportBspPvs(objects);
+                        ExportBspPvs(objects, mSampleRays, mVisualizationSamples);
         }
         
@@ -731 +730 @@
 
                                 for (it = vssRays.begin(); it != it_end; ++ it)
-                                        if (!(*it)->mOriginObject)
-                                                rays.push_back(*it);
+                                {
+                                        //if (!(*it)->mOriginObject && !(*it)->mTerminationObject)
+                        rays.push_back(*it);
+
+                                        //if (!(*it)->mOriginObject && !(*it)->mTerminationObject)
+                                        //      Debug << "ERR: " << (*it)->mOrigin << " " << (*it)->mTermination << endl;
+                                }
 
                                 exporter->ExportRays(rays, RgbColor(1, 0, 0));
@@ -816 +820 @@
         {
                 // store samples for vsp kd tree construction
-                if ((int)mVspSampleRays.size() < mVspConstructionSamples)
+                if ((object || !ray.intersections.empty()) && 
+                        ((int)mVspSampleRays.size() < mVspConstructionSamples))
                 {
                         ray.sourceObject = Ray::Intersection(0.0, object, faceIndex);
@@ -936 +941 @@
         return merged;
 }
-
-// export scene geometry
-void SamplingPreprocessor::ExportSceneGeometry(Exporter *exporter, const ObjectContainer &objects)
-{
-        Material m;//= RandomMaterial();
-        m.mDiffuseColor = RgbColor(0, 1, 0);
-        exporter->SetForcedMaterial(m);
-        exporter->SetWireframe();
-
-        for (int j = 0; j < objects.size(); ++ j)
-                exporter->ExportIntersectable(objects[j]);
-}
-
-void SamplingPreprocessor::ExportSplits(const ObjectContainer &objects)
-{
-        Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
-
-        if (exporter) 
-        {       
-                Material m; 
-                m.mDiffuseColor = RgbColor(1, 0, 0);
-                exporter->SetForcedMaterial(m);
-                exporter->SetWireframe();
-                exporter->ExportBspSplits(*mBspTree, true);
-
-                // take forced material, else big scenes cannot be viewed
-                m.mDiffuseColor = RgbColor(0, 1, 0);
-                exporter->SetForcedMaterial(m);
-                exporter->SetFilled();
-
-                exporter->ResetForcedMaterial();
-                
-                // export rays
-                if (0)
-                {
-                        RayContainer outRays;
-                
-                        for (int i = 0; i < mSampleRays.size(); ++ i)
-                        {
-                                // only rays piercing geometry
-                                if (!mSampleRays[i]->intersections.empty())
-                                        outRays.push_back(mSampleRays[i]);
-                        }
-                        if (BspTree::sConstructionMethod == BspTree::FROM_SAMPLES)
-                        {
-                                // export rays 
-                                exporter->ExportRays(outRays, 1000, RgbColor(1, 1, 0));
-                        }
-                }
-
-                if (1)
-                        ExportSceneGeometry(exporter, objects);
-
-                delete exporter;
-        }
-}
-
-inline bool vc_gt(ViewCell *a, ViewCell *b) 
-{ 
-        return a->GetPvs().GetSize() > b->GetPvs().GetSize();
-}
-
-void SamplingPreprocessor::ExportBspPvs(const ObjectContainer &objects)
-{
-        const int leafOut = 10;
-        
-        ViewCell::NewMail();
-
-        //-- some rays for output
-        const int raysOut = min((int)mSampleRays.size(), mVisualizationSamples);
-        cout << "visualization using " << mVisualizationSamples << " samples" << endl;
-        vector<Ray *> vcRays[leafOut];
-
-        if (0){
-                //-- some random view cells and rays for output
-                vector<BspLeaf *> bspLeaves;
-
-                for (int i = 0; i < leafOut; ++ i)
-                        bspLeaves.push_back(mBspTree->GetRandomLeaf()); 
-                
-                for (int i = 0; i < bspLeaves.size(); ++ i)
-                {
-                        cout << "creating output for view cell " << i << " ... ";
-                        // check whether we can add the current ray to the output rays
-                        for (int k = 0; k < raysOut; ++ k) 
-                        {
-                                Ray *ray = mSampleRays[k];
-
-                                for     (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
-                                {
-                                        BspLeaf *leaf = ray->bspIntersections[j].mLeaf;
-
-                                        if (bspLeaves[i]->GetViewCell() == leaf->GetViewCell()) 
-                                        {
-                                                vcRays[i].push_back(ray);
-                                        }
-                                }
-                        }
-
-                        Intersectable::NewMail();
-
-                        BspViewCell *vc = dynamic_cast<BspViewCell *>(bspLeaves[i]->GetViewCell());
-
-                        //bspLeaves[j]->Mail();
-                        char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
-
-                        Exporter *exporter = Exporter::GetExporter(s);
-                        exporter->SetFilled();
-
-                        ViewCellPvsMap::iterator it = vc->GetPvs().mEntries.begin();
-
-                        exporter->SetWireframe();
-                        //exporter->SetFilled();
-
-                        Material m;//= RandomMaterial();
-                        m.mDiffuseColor = RgbColor(0, 1, 0);
-                        exporter->SetForcedMaterial(m);
-
-                        if (vc->GetMesh())
-                                exporter->ExportViewCell(vc);
-                        else
-                        {
-                                PolygonContainer cell;
-                                // export view cell geometry
-                                mBspTree->ConstructGeometry(vc, cell);
-                                exporter->ExportPolygons(cell);
-                                CLEAR_CONTAINER(cell);
-                        }
-
-                        Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize() 
-                                        << ", piercing rays=" << (int)vcRays[i].size() << endl;
-
-                        // export rays piercing this view cell
-                        exporter->ExportRays(vcRays[i], 1000, RgbColor(0, 1, 0));
-
-                        m.mDiffuseColor = RgbColor(1, 0, 0);
-                        exporter->SetForcedMaterial(m);
-
-                        // exporter->SetWireframe();
-                        exporter->SetFilled();
-
-                        // output PVS of view cell
-                        for (; it != vc->GetPvs().mEntries.end(); ++ it) 
-                        {
-                                Intersectable *intersect = (*it).first;
-                                if (!intersect->Mailed())
-                                {
-                                        exporter->ExportIntersectable(intersect);
-                                        intersect->Mail();
-                                }                       
-                        }
-                                
-                        // output rest of the objects
-                        if (0)
-                        {
-                                Material m;//= RandomMaterial();
-                                m.mDiffuseColor = RgbColor(0, 0, 1);
-                                exporter->SetForcedMaterial(m);
-
-                                for (int j = 0; j < objects.size(); ++ j)
-                                        if (!objects[j]->Mailed())
-                                        {
-                                                exporter->SetForcedMaterial(m);
-                                                exporter->ExportIntersectable(objects[j]);
-                                                objects[j]->Mail();
-                                        }
-                        }
-                        DEL_PTR(exporter);
-                        cout << "finished" << endl;
-                }
-        }
-        else
-        {
-                ViewCellContainer viewCells;
-
-                mBspTree->CollectViewCells(viewCells);
-                stable_sort(viewCells.begin(), viewCells.end(), vc_gt);
-
-                int limit = min(leafOut, (int)viewCells.size()); 
-                
-                for (int i = 0; i < limit; ++ i)
-                {
-                        cout << "creating output for view cell " << i << " ... ";
-                        
-            Intersectable::NewMail();
-                        BspViewCell *vc = dynamic_cast<BspViewCell *>(viewCells[i]);
-
-                        cout << "creating output for view cell " << i << " ... ";
-                        // check whether we can add the current ray to the output rays
-                        for (int k = 0; k < raysOut; ++ k) 
-                        {
-                                Ray *ray = mSampleRays[k];
-
-                                for     (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
-                                {
-                                        BspLeaf *leaf = ray->bspIntersections[j].mLeaf;
-
-                                        if (vc == leaf->GetViewCell()) 
-                                        {
-                                                vcRays[i].push_back(ray);
-                                        }
-                                }
-                        }
-
-                        //bspLeaves[j]->Mail();
-                        char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
-
-                        Exporter *exporter = Exporter::GetExporter(s);
-                        
-                        exporter->SetWireframe();
-
-                        Material m;//= RandomMaterial();
-                        m.mDiffuseColor = RgbColor(0, 1, 0);
-                        exporter->SetForcedMaterial(m);
-
-                        if (vc->GetMesh())
-                                exporter->ExportViewCell(vc);
-                        else
-                        {
-                                PolygonContainer cell;
-                                // export view cell
-                                mBspTree->ConstructGeometry(vc, cell);
-                                exporter->ExportPolygons(cell);
-                                CLEAR_CONTAINER(cell);
-                        }
-
-                        
-                        Debug << i << ": pvs size=" << (int)vc->GetPvs().GetSize() 
-                                        << ", piercing rays=" << (int)vcRays[i].size() << endl;
-
-                        
-                        // export rays piercing this view cell
-                        exporter->ExportRays(vcRays[i], 1000, RgbColor(0, 1, 0));
-        
-                        m.mDiffuseColor = RgbColor(1, 0, 0);
-                        exporter->SetForcedMaterial(m);
-
-                        ViewCellPvsMap::const_iterator it,
-                                it_end = vc->GetPvs().mEntries.end();
-
-                        // output PVS of view cell
-                        for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it) 
-                        {
-                                Intersectable *intersect = (*it).first;
-                                if (!intersect->Mailed())
-                                {
-                                        Material m = RandomMaterial();
-                        
-                                        exporter->SetForcedMaterial(m);
-
-                                        exporter->ExportIntersectable(intersect);
-                                        intersect->Mail();
-                                }                       
-                        }
-                                
-                        DEL_PTR(exporter);
-                        cout << "finished" << endl;
-                }
-        }
-}

trunk/VUT/GtpVisibilityPreprocessor/src/SamplingPreprocessor.h

@@ -83 +83 @@
         bool BuildBspTree();
 
-        void ExportSplits(const ObjectContainer &objects);
-
-        void ExportBspPvs(const ObjectContainer &objects);
-
-        /** Export scene geometry.
-        */
-        void ExportSceneGeometry(Exporter *exporter, const ObjectContainer &objects);
-
         /** Post processes view cells (i.e., merges or subdivides view cells based
                 on the PVS and the ray sets.
@@ -111 +103 @@
         RayContainer mSampleRays;
         VssRayContainer mVspSampleRays;
-        int mBspConstructionSamples;
+        
         int mVspConstructionSamples;
 

trunk/VUT/GtpVisibilityPreprocessor/src/VssPreprocessor.cpp

@@ -24 +24 @@
   environment->GetIntValue("VssPreprocessor.vssSamples", mVssSamples);
   environment->GetIntValue("VssPreprocessor.vssSamplesPerPass", mVssSamplesPerPass);
-        environment->GetBoolValue("VssPreprocessor.useImportanceSampling", mUseImportanceSampling);
+  environment->GetBoolValue("VssPreprocessor.useImportanceSampling", mUseImportanceSampling);
+  environment->GetIntValue("BspTree.Construction.samples", mBspConstructionSamples);
         
   mStats.open("stats.log");
@@ -353 +354 @@
         VssTree *vssTree = NULL;
 
+        RayContainer bspRays;
+
   while (totalSamples < mInitialSamples) {
                 int passContributingSamples = 0;
@@ -422 +425 @@
 
 
-
         vssTree = new VssTree;
         
+        const int bspSamples = min((int)mVssRays.size(), mBspConstructionSamples);
+        
+        for (int i = 0; i < bspSamples; ++ i)
+                bspRays.push_back(new Ray(*mVssRays[i]));
+
+        mBspTree = new BspTree(&mUnbounded);    
+
+        mBspTree->SetGenerateViewCells(true);
+        mBspTree->Construct(bspRays);
+
+        for (int i = bspSamples; i < (int)mVssRays.size(); ++ i)
+        {
+                CastRay(*mBspTree, *mVssRays[i]);
+        }
+
         vssTree->Construct(mVssRays, mViewSpaceBox);
 
@@ -469 +486 @@
                 }
 
+                
+                for (int i = 0; i < (int)vssRays.size(); ++ i)
+                {
+                        CastRay(*mBspTree, *mVssRays[i]);
+                }
                 
                 samples+=num;
@@ -482 +504 @@
 
         delete vssTree;
-        
-  return true;
-}
-
+
+        ObjectContainer objects;
+        ExportSplits(objects, bspRays, 10000);
+        ExportBspPvs(objects, bspRays, 10000);
+
+        CLEAR_CONTAINER(bspRays);
+
+        return true;
+}
+
+void VssPreprocessor::CastRay(const BspTree &tree, const VssRay & vssRay)
+{
+        //-- cast ray to BSP tree to get intersection with view cells
+        Ray ray(vssRay);
+
+        mBspTree->CastRay(ray);
+                                
+        if (ray.sourceObject.mObject)
+                //sampleContributions += 
+                AddObjectSamples(ray.sourceObject.mObject, ray);
+                        
+                if (!ray.intersections.empty()) // second intersection found
+                {
+                        //sampleContributions += 
+                                AddObjectSamples(ray.intersections[0].mObject, ray);
+                }
+}
+
+int VssPreprocessor::AddObjectSamples(Intersectable *obj, const Ray &ray)
+{
+        int contributingSamples = 0;
+        int j;
+ 
+        // object can be seen from the view cell => add to view cell pvs
+        for (j=0; j < ray.bspIntersections.size(); ++ j)
+        {       
+                BspLeaf *leaf = ray.bspIntersections[j].mLeaf;
+                // if ray not in unbounded space
+                if (leaf->GetViewCell() != &mUnbounded)
+                        contributingSamples += 
+                                leaf->GetViewCell()->GetPvs().AddSample(obj);
+        }
+ 
+        // rays passing through this viewcell
+        if (mPass > 1)
+                for (j=1; j < ((int)ray.bspIntersections.size() - 1); ++ j) 
+                {
+                        BspLeaf *leaf = ray.bspIntersections[j].mLeaf;
+
+                        if (leaf->GetViewCell() != &mUnbounded)
+                                leaf->GetViewCell()->
+                                        AddPassingRay(ray, contributingSamples ? 1 : 0);
+                }
+ 
+        return contributingSamples;
+}

trunk/VUT/GtpVisibilityPreprocessor/src/VssPreprocessor.h

@@ -85 +85 @@
         ExportVssTreeLeaves(VssTree *tree, const int number);
         
+        void CastRay(const BspTree &tree, const VssRay & vssRay);
         
+        int AddObjectSamples(Intersectable *obj, const Ray &ray);
 };
 

trunk/VUT/GtpVisibilityPreprocessor/src/VssRay.h

@@ -72 +72 @@
                         mOrigin = ray.GetLoc(); 
 
-                Debug << "origin: " << mOrigin << endl;
+                //Debug << "origin: " << mOrigin << endl;
 
                 if (!ray.intersections.empty())
@@ -81 +81 @@
                 else
                 {
-                        //mTermination = 1e6;
-                        mTermination = mOrigin + ray.GetDir() * 1e6;
+                        mTermination = mOrigin + ray.GetDir() * 99999;
                         mTerminationObject = NULL;
                 }