Changeset 2542 for GTP/trunk/Lib/Vis/Preprocessing/src/ViewCellsManager.cpp

Timestamp:

08/20/07 12:51:12 (17 years ago)

Author:

mattausch

Message:

 

File:

• GTP/trunk/Lib/Vis/Preprocessing/src/ViewCellsManager.cpp (modified) (20 diffs)

GTP/trunk/Lib/Vis/Preprocessing/src/ViewCellsManager.cpp

@@ -34 +34 @@
 #define PVS_ADD_DIRTY 1
 
+
+
 namespace GtpVisibilityPreprocessor {
 
@@ -46 +48 @@
 const static bool CLAMP_TO_BOX = true;
 
+
+
+inline static bool ilt(Intersectable *obj1, Intersectable *obj2)
+{
+        return obj1->mId < obj2->mId;
+}
 
 
@@ -994 +1002 @@
         EvaluateViewCellsStats();
 
-        if (1) CompressViewCells();
+        // compress the final solution
+        if (0) CompressViewCells();
 
         // write view cells to disc
@@ -1021 +1030 @@
                                                                                                  
 {
+        if (!Debug.is_open()) Debug.open("debug.log");
+
         // give just an empty container as parameter:
         // this loading function is used in the engine, thus it
         // does not need to load the entities the preprocessor works on
         ObjectContainer preprocessorObjects;
-
-        if (!Debug.is_open()) Debug.open("debug.log");
 
         return LoadViewCells(filename, 
@@ -1033 +1042 @@
                                                  finalizeViewCells,
                                                  bconverter);
+}
+
+
+void ViewCellsManager::LoadIndexedBoundingBoxes(IN_STREAM &stream, IndexedBoundingBoxContainer &iboxes)
+{
+        Vector3 bmin;
+        Vector3 bmax;
+        int id;
+
+        stream.read(reinterpret_cast<char *>(&bmin), sizeof(Vector3));
+        stream.read(reinterpret_cast<char *>(&bmax), sizeof(Vector3));
+        stream.read(reinterpret_cast<char *>(&id), sizeof(int));
+
+        AxisAlignedBox3 box(bmin, bmax);
+
+        iboxes.push_back(IndexedBoundingBox(id, box));
+        //Debug << "bbox: " << box << endl;
+}
+
+
+ViewCellsManager *ViewCellsManager::LoadViewCellsBin(const string &filename, 
+                                                                                                         ObjectContainer &pvsObjects,
+                                                                                                         ObjectContainer &preprocessorObjects,
+                                                                                                         bool finalizeViewCells,
+                                                                                                         BoundingBoxConverter *bconverter)
+{
+        IN_STREAM stream(filename.c_str());
+        
+        IndexedBoundingBoxContainer iboxes;
+        LoadIndexedBoundingBoxes(stream, iboxes);
+
+        if (bconverter)
+        {
+                // all bounding boxes gathered in this step => 
+                // associate object ids with bounding boxes
+                bconverter->IdentifyObjects(iboxes, pvsObjects);
+        }
+
+        // sort objects by id
+        sort(pvsObjects.begin(), pvsObjects.end(), ilt);
+
+        ViewCellsTree *vcTree = new ViewCellsTree();
+        VspTree *vspTree = new VspTree();
+
+        HierarchyManager *hm = new HierarchyManager(0);
+
+        vspTree->ImportBinary(stream, pvsObjects);
+        
+        VspOspViewCellsManager *vcm = new VspOspViewCellsManager(vcTree, hm);
+
+        return vcm;
 }
 
@@ -1061 +1121 @@
         }
         
-        if (0) //hack: should work with reset function, but something is wrong ..
+        if (0) //hack: reset function should work, but something is wrong ..
         {
                 vm->ResetViewCells();
@@ -1104 +1164 @@
                                                                                          const ObjectContainer &objects)
 {
+        // no view cells constructed yet
         if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
-        {
                 return false;
-        }
 
         cout << "exporting view cells to xml ... ";
@@ -2424 +2483 @@
 
 
-
-                  if (evaluateFilter) {
+                  if (evaluateFilter) 
+                  {
                           ObjectPvs filteredPvs;
 
-                          PvsFilterStatistics fstat = ApplyFilter2(viewcell,
-                                  false,
-                                  mFilterWidth,
-                                  filteredPvs);
-
-                          float filteredCost = filteredPvs.EvalPvsCost();
+                          PvsFilterStatistics fstat = ApplyFilter2(viewcell, false, mFilterWidth, filteredPvs);
+
+                          const float filteredCost = filteredPvs.EvalPvsCost();
 
                           stat.avgFilteredPvs += filteredCost;
@@ -3070 +3126 @@
                         MeshInstance *mi = static_cast<MeshInstance *>(*it);
                         const AxisAlignedBox3 box = mi->GetBox();
+                        
                         Vector3 bmin = box.Min();
                         Vector3 bmax = box.Max();
+                        
                         int id = mi->GetId();
 
@@ -3444 +3502 @@
 
         // Minimal number of samples so that filtering takes place
-#define MIN_SAMPLES  50
+        const float MIN_SAMPLES = 50;
 
         if (samples > MIN_SAMPLES) 
@@ -3537 +3595 @@
         }
 
-        Debug << " nPvs size = " << pvs.GetSize() << endl;
+        //Debug << " nPvs size = " << pvs.GetSize() << endl;
 
         if (!mUseKdPvs)
@@ -5887 +5945 @@
 
 
-Intersectable *
-VspOspViewCellsManager::GetIntersectable(const VssRay &ray, const bool isTermination) const
+Intersectable *VspOspViewCellsManager::GetIntersectable(const VssRay &ray, 
+                                                                                                                const bool isTermination) const
 {
         if (mUseKdPvs)
@@ -6387 +6445 @@
                         const bool exportBounds = false;
 
-                        if (1)
                         mHierarchyManager->ExportObjectSpaceHierarchy(exporter, 
                                                                       objects, 
@@ -6575 +6632 @@
                                                                                          const ObjectContainer &objects)
 {
+        // no view cells were computed
         if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
                 return false;
+
+        cout << "exporting binary" << endl;
+        string fname("test.vc");
+        return ExportBinaryViewCells(fname, exportPvs, objects);
 
         const long starttime = GetTime();
@@ -6612 +6674 @@
 
                                 stream << "<BoundingBox" << " id=\"" << id << "\""
-                                   << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
-                                   << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
+                                           << " min=\"" << box.Min().x << " " << box.Min().y << " " << box.Min().z << "\""
+                                       << " max=\"" << box.Max().x << " " << box.Max().y << " " << box.Max().z << "\" />" << endl;
                         }
+
                         stream << "</BoundingBoxes>" << endl;
                 }
@@ -6661 +6724 @@
                                                                                                    const ObjectContainer &objects)
 {
+        // no view cells constructed yet
         if (!ViewCellsConstructed() || !ViewCellsTreeConstructed())
                 return false;
@@ -6678 +6742 @@
     ///////////////
         //-- export bounding boxes
-        //-- we need the boxes to identify objects in the target engine
-
+
+        // we use bounding box intersection to identify pvs objects in the target engine
         vector<KdIntersectable *>::const_iterator kit, kit_end = mPreprocessor->mKdTree->mKdIntersectables.end();
 
@@ -6689 +6753 @@
                 const AxisAlignedBox3 &box = obj->GetBox();
 
-                // set kd node id
+                // setting the kd node id important to identify the kd node as pvs entry
                 obj->SetId(id);
+
                 Vector3 bmin = box.Min();
                 Vector3 bmax = box.Max();
@@ -6703 +6768 @@
         //-- export the view cells and the pvs
 
-
         int numViewCells = mCurrentViewCellsStats.viewCells;
         stream.write(reinterpret_cast<char *>(&numViewCells), sizeof(int));
@@ -6712 +6776 @@
         stream.write(reinterpret_cast<char *>(&vmin), sizeof(Vector3));
         stream.write(reinterpret_cast<char *>(&vmax), sizeof(Vector3));
+
+        // todo
+        mViewCellsTree->ExportBinary(stream);