Changeset 3244 for GTP

Timestamp:

01/03/09 17:32:10 (15 years ago)

Author:

mattausch

Message:

 

Location:

GTP/trunk/App/Demos/Vis/FriendlyCulling/src

Files:

• Bvh.cpp (modified) (2 diffs)
• BvhLoader.cpp (modified) (4 diffs)
• RenderTraverser.cpp (modified) (1 diff)
• ViewCellsTree.cpp (modified) (8 diffs)
• ViewCellsTree.h (modified) (3 diffs)
• VisibilitySolutionLoader.cpp (modified) (6 diffs)
• chcdemo.cpp (modified) (8 diffs)

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/Bvh.cpp

@@ -1161 +1161 @@
         mBox = mRoot->GetBox();
 
-        // compute and print stats
+        // compute and print stats for whole (static + dynamic) bvh
         ComputeBvhStats(mRoot, mBvhStats);
         PrintBvhStats(mBvhStats);
 
+        // also output dynamic stats
         if (mDynamicGeometrySize)
         {
@@ -1475 +1476 @@
         l->mArea = l->mBox.SurfaceArea();
         
-        cout << "updating dynamic branch " << l->mFirst << " " << l->mLast << endl;
+        cout << "creating dynamic bvh branch"  << endl;
 
         if (mDynamicGeometrySize)

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/BvhLoader.cpp

@@ -72 +72 @@
         if (!stream.is_open()) return NULL;
 
-        cout << "loading bvh" << endl;
+        cout << "\n*******************\nloading bvh ..." << endl;
 
         Bvh *bvh = new Bvh(staticEntities, dynamicEntities, maxDepthForTestingChildren);
@@ -82 +82 @@
         bvh->mNumNodes = 3;
 
-        cout << "*******************\nbox: " << root->mBox << " area: " << root->mArea << endl;
+        cout << "static bvh bb: " << root->mBox << endl;
 
         tQueue.push(root);
@@ -111 +111 @@
         }
 
+        cout << "... finished loading " << bvh->mNumNodes - 2 << " static bvh nodes" << endl;
+
+
         ///////////
         //-- create dynamic part of the hierarchy
@@ -121 +124 @@
         bvh->PostProcess();
 
-        cout << "... finished loading " << bvh->mNumNodes << " nodes" << endl;
-        cout << "scene box: " << bvh->mBox << endl;
+        cout << "bvh bb: " << bvh->mBox << endl;
 
         return bvh;

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/RenderTraverser.cpp

@@ -55 +55 @@
 mRenderDynamicObjects(true)
 {
+        mStats.Reset();
 }
 

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/ViewCellsTree.cpp

@@ -24 +24 @@
         while (!node->IsLeaf()) 
         {
+                //cout << "pt: " << point[node->mAxis] << " " << node->mPosition << endl;
                 if (point[node->mAxis] < node->mPosition)
                         node = node->mBack;
@@ -29 +30 @@
                         node = node->mFront;
         }
+
+        //cout << "vc: " << node->mViewCell->GetBox() << " pvs " << node->mViewCell->mPvs.Size() << endl;
 
         return node->mViewCell;
@@ -36 +39 @@
 bool ViewCellsTree::LoadFromFile(const std::string &filename)
 {
-        cout << "Info: Loading view cells from file '" + filename + "'";
+        cout << "Loading view cells from file '" + filename + "'";
 
         FILE *fr = fopen(filename.c_str(), "rb");
@@ -48 +51 @@
         bool result = _LoadFromFile(fr);
 
-        cout << "Info: done. " << endl;
+        cout << "finished loading view cells. " << endl;
         fclose(fr);
 
@@ -58 +61 @@
 {
         int buffer[256]; 
-        fread(buffer, sizeof(int), 3, fr);
+        fread(buffer, sizeof(int), 2, fr);
 
         if (buffer[0] != MAGIC) 
@@ -75 +78 @@
         fread(&mBox, sizeof(AxisAlignedBox3), 1, fr);
 
+        Vector3 v1(mBox.Min().x, -mBox.Min().z, mBox.Min().y);
+        Vector3 v2(mBox.Max().x, -mBox.Max().z, mBox.Max().y);
+        
+        Vector3 newMin = v1;
+        Vector3 newMax = v2;
+
+        Minimize(newMin, v2);
+        Maximize(newMax, v1);
+
+        mBox.SetMin(newMin);
+        mBox.SetMax(newMax);
+
         stack<ViewCellsTreeNode **> nodeStack;
+        nodeStack.push(&mRoot);
 
-        nodeStack.push(&mRoot);
+        cout << "view cells bounds " << mBox << endl;
+
+        int numViewCells = 0;
 
         while (!nodeStack.empty()) 
@@ -85 +103 @@
                 node = new ViewCellsTreeNode();
 
-                fread(&node->mAxis, sizeof(int), 1, fr);
+                ++ numViewCells;
+
+                int axis;
+                fread(&axis, sizeof(int), 1, fr);
+
+                // exchange y and z axis like we have to do for the scene
+                if (axis == 2) axis = 1;
+                else if (axis == 1) axis = 2;
+
+                node->mAxis = axis;
+
+                if (node->mAxis > 2 || node->mAxis < -1) cout << "a " << node->mAxis << " ";
 
                 if (!node->IsLeaf())
                 {
-                        fread(&node->mPosition, sizeof(float), 1, fr);
+                        float pos;
+                        fread(&pos, sizeof(float), 1, fr);
+
+                        if (axis == 1) pos = -pos;
+                        node->mPosition = pos;
+                        
                         nodeStack.push(&node->mFront);
                         nodeStack.push(&node->mBack);
@@ -95 +129 @@
         }
 
+        cout << "loaded " << numViewCells << " view cells" << endl;
         return true;
 }

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/ViewCellsTree.h

@@ -25 +25 @@
         void SetBox(const AxisAlignedBox3 &box) { mBox = box; }
 
+        AxisAlignedBox3 GetBox() const { return mBox; }
 
         // the pvs associated with the viewcell
@@ -42 +43 @@
         ViewCellsTreeNode(): mAxis(-1), mViewCell(NULL) {}
 
-        bool IsLeaf() { return mViewCell != NULL; }
+        bool IsLeaf() { return mAxis == -1; }
 
 
         ///////////////////////
+
+        /// split mAxis 
+        int mAxis;
 
         union 
@@ -58 +62 @@
         ViewCellsTreeNode *mBack;
         ViewCellsTreeNode *mFront;
-
-        /// split mAxis 
-        int mAxis;
 };
 

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/VisibilitySolutionLoader.cpp

@@ -20 +20 @@
         FILE *fr = fopen(filename.c_str(), "rb");
   
-        cout << "Info: Loading visibility solution from file '" + filename + "'" << endl;
+        cout << "Loading visibility solution from file '" + filename + "'" << endl;
   
         if (fr == NULL) 
@@ -34 +34 @@
         fread(&totalTime, sizeof(float), 1, fr);
 
+        cout << "loading view cells" << endl;
+
         ViewCellsTree *viewCellsTree = new ViewCellsTree();
 
         bool ok = viewCellsTree->_LoadFromFile(fr);
+
+        cout << "finished loading view cells" << endl;
+
   
         if (ok) 
         {
-                // skip bvh loading
+                // skip loading of bvh nodes
                 int buffer[6]; 
                 fread(buffer, sizeof(int), 6, fr);
 
-                const size_t numNodes = buffer[5];
-                
+                const int numNodes = buffer[5];
+                const int numTriangleIds = buffer[2];
+
+                // skip triangle ids
+                cout << "skipping " << numTriangleIds << " triangle ids" << endl;
+
+                int tid;
+                for (int i = 0; i < numTriangleIds; ++ i) 
+                        fread(&tid, sizeof(int), 1, fr);
+        
+                cout << "skipping " << numNodes << " bvh nodes" << endl;
+
                 for (int i = 0; i < numNodes; ++ i)
                         fread(buffer, sizeof(int), 4, fr);
 
+
+                cout << "allocating view cells" << endl;
+
                 AllocateLeafViewCells(viewCellsTree);
                 
+                cout << "loading pvss" << endl;
+
                 ok = LoadPvs(fr, bvh);
+
+                cout << "finished loading pvss" << endl;
         }
 
@@ -57 +79 @@
 
         if (ok) 
-                cerr << "Info: visibility solution loaded" << endl;
+                cout << "Visibility solution loaded" << endl;
         else
-                cerr << "Info: loading visibility solution failed." << endl;
+                cerr << "Error: loading visibility solution failed." << endl;
 
         return viewCellsTree;
@@ -99 +121 @@
         fread(&number, sizeof(int), 1, fw);
 
-        if (number == 0) 
-        {
-                cerr << "Info: Warning empty PVSs in visibility solution" << endl;
+        if (!number) 
+        {
+                cerr << "Warning: empty PVSs in visibility solution" << endl;
                 return true;
         }
@@ -107 +129 @@
         if (number != mViewCells.size()) 
         {
-                cerr << "Info: Number of view cells does not match when loading PVSs!" << endl;
+                cerr << "Warning: Number of view cells (" << number << ", " << (int)mViewCells.size() << ") does not match when loading PVSs!" << endl;
                 return false;
         }
@@ -160 +182 @@
                 if (node->IsLeaf()) 
                 {
-                        if (node->mViewCell == NULL) 
+                        if (!node->mViewCell) 
                         {
                                 node->mViewCell = new ViewCell();

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/chcdemo.cpp

@@ -139 +139 @@
 bool makeSnapShot = false;
 
+ViewCellsTree *viewCellsTree = NULL;
+
 
 /// the technique used for rendering
@@ -267 +269 @@
 int maxBatchSize = 50;
 int trianglesPerVirtualLeaf = INITIAL_TRIANGLES_PER_VIRTUAL_LEAVES;
+
 
 //////////////
@@ -349 +352 @@
 SceneQuery *GetOrCreateSceneQuery();
 
+void RenderPvs();
+
 
 // new view projection matrix of the camera
@@ -619 +624 @@
         VisibilitySolutionLoader visLoader;
 
-        ViewCellsTree *viewCellsTree = visLoader.Load(vis_filename, bvh);
+        viewCellsTree = visLoader.Load(vis_filename, bvh);
 
 
@@ -1249 +1254 @@
         {
                 // actually render the scene geometry using the specified algorithm
-                traverser->RenderScene();
+                //traverser->RenderScene();
+
+                RenderPvs();
         }
 
@@ -1256 +1263 @@
         //-- do the rest of the rendering
         
-        // reset depth pass and render visible objects
+        // return from depth pass and render visible objects
         if ((renderMethod == RENDER_DEPTH_PASS) ||
                 (renderMethod == RENDER_DEPTH_PASS_DEFERRED))
@@ -2035 +2042 @@
         DEL_PTR(walkThroughPlayer);
         DEL_PTR(statsWriter);
+        DEL_PTR(viewCellsTree);
 
         ResourceManager::DelSingleton();
@@ -2508 +2516 @@
         return sampleCount;
 }
+
+
+void RenderPvs()
+{
+        ViewCell *vc = viewCellsTree->GetViewCell(camera->GetPosition());
+
+        for (int i = 0; i < vc->mPvs.Size(); ++ i)
+        {
+                SceneEntity *ent = vc->mPvs.GetEntry(i);
+                ent->Render(&renderState);
+        }
+}