Changeset 1634 for GTP

Timestamp:

10/18/06 01:49:50 (18 years ago)

Author:

mattausch

Message:

multiple path support for kd

Location:

GTP/trunk/Lib/Vis/Preprocessing/src

Files:

• BvHierarchy.cpp (modified) (2 diffs)
• HierarchyManager.cpp (modified) (9 diffs)
• HierarchyManager.h (modified) (1 diff)
• Preprocessor.cpp (modified) (2 diffs)
• common.cpp (modified) (1 diff)
• common.h (modified) (1 diff)
• main.cpp (modified) (3 diffs)

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

@@ -581 +581 @@
 inline bool BvHierarchy::LocalTerminationCriteriaMet(const BvhTraversalData &data) const
 {
-        // matt: TODO
         return ( 0
-                || ((int)data.mNode->mObjects.size() <= mTermMinObjects)
-                //|| (data.mProbability <= mTermMinProbability)
-                //|| (data.mNumRays <= mTermMinRays)
+                        || ((int)data.mNode->mObjects.size() <= mTermMinObjects)
+                        //|| (data.mProbability <= mTermMinProbability)
+                        //|| (data.mNumRays <= mTermMinRays)
                  );
 }
@@ -1229 +1228 @@
                                         HierarchyManager::KD_BASED_VIEWSPACE_SUBDIV)
                                 {
+                                        ///////////
                                         //-- heuristics using objects weighted by view cells volume
                                         nCostRatio[axis] =

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

@@ -330 +330 @@
 
         // number of initial splits
-        int maxSteps = 200;
-        float renderCostDecr = 0;
+        int minSteps = 200;
+        float renderCostDecr = Limits::Infinity;
 
         SubdivisionCandidate *osc = 
@@ -347 +347 @@
         // has started, use render cost heuristics instead
         const int ospSteps = 
-                RunConstruction(objectSpaceQueue, dirtyVspList, renderCostDecr, maxSteps);
+                RunConstruction(objectSpaceQueue, dirtyVspList, renderCostDecr, minSteps);
 
         cout << ospSteps << " object space partition steps taken" << endl;
@@ -376 +376 @@
                 {
                         // use splits of one kind until rendercost slope is reached
-                        renderCostDecr = mHierarchyStats.mRenderCostDecrease;
+                        //renderCostDecr = mHierarchyStats.mRenderCostDecrease;
+                        
+                        // lower number of minsteps: this should be solved 
+                        // with render cost decrease from now
+                        //minSteps = 5; 
 
                         // dirtied view space candidates
@@ -385 +389 @@
                         // has started, use render cost heuristics instead
                         const int ospSteps = 
-                                RunConstruction(objectSpaceQueue, dirtyVspList, renderCostDecr, maxSteps);
+                                RunConstruction(objectSpaceQueue, dirtyVspList, renderCostDecr, minSteps);
 
                         cout << ospSteps << " object space partition steps taken" << endl;
@@ -400 +404 @@
                 {
                         // use splits of one kind until rendercost slope is reached
-                        renderCostDecr = mHierarchyStats.mRenderCostDecrease;
+                //      renderCostDecr = mHierarchyStats.mRenderCostDecrease;
 
                         /////////////////
@@ -409 +413 @@
                         // process view space candidates
                         const int vspSteps = 
-                                RunConstruction(viewSpaceQueue, dirtyOspList, renderCostDecr, maxSteps);
+                                RunConstruction(viewSpaceQueue, dirtyOspList, renderCostDecr, minSteps);
 
                         cout << vspSteps << " view space partition steps taken" << endl;
@@ -480 +484 @@
 
         // begin subdivision
-        RunConstruction(mRepairQueue, sampleRays, objects, forcedViewSpace);
+        RunConstruction(mRepairQueue, 
+                                        sampleRays, 
+                                        objects, 
+                                        forcedViewSpace//, 
+                                        /*vspSc*/);
         
         cout << "\nfinished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
@@ -760 +768 @@
                                                                           SubdivisionCandidateContainer &dirtyCandidates,
                                                                           const float minRenderCostDecr,
-                                                                          const int maxSteps)
+                                                                          const int minSteps)
 {
         int steps = 0;
@@ -766 +774 @@
 
         // main loop
-        while (!splitQueue.Empty() && (steps < maxSteps))
+        while (!splitQueue.Empty())
         {
                 SubdivisionCandidate *sc = NextSubdivisionCandidate(splitQueue); 
                 
                 // minimum slope reached
-                //if (sc->GetRenderCostDecrease() < minRenderCostDecr)  break;
+                if ((sc->GetRenderCostDecrease() < minRenderCostDecr) &&
+                        !(steps < minSteps))
+                        break;
 
                 ////////

GTP/trunk/Lib/Vis/Preprocessing/src/HierarchyManager.h

@@ -263 +263 @@
                                                 SubdivisionCandidateContainer &chosenCandidates,
                                                 const float minRenderCostDecr,
-                                                const int maxSteps);
+                                                const int minSteps);
 
         /** Default subdivision method.

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

@@ -822 +822 @@
 {
         // always try to load the kd tree
-        bool loadKdTree = true;
-        //Environment::GetSingleton()->GetBoolValue("Preprocessor.loadKdTree", loadKdTree);
-                
-        if (!loadKdTree)
-        {       
+        cout << "loading kd tree file " << internKdTree << " ... ";
+
+        if (!LoadKdTree(internKdTree))
+        {
+                cout << "error loading kd tree with filename " << internKdTree << ", rebuilding it instead ... " << endl;
                 // build new kd tree from scene geometry
                 BuildKdTree();
-        }
-        else
-        {
-                cout << "loading kd tree file " << internKdTree << " ... ";
-
-                if (!LoadKdTree(internKdTree))
-                {
-                        cout << "error loading kd tree with filename " << internKdTree << ", rebuilding it instead ... " << endl;
-                        BuildKdTree();
-                }
 
                 // export kd tree?
@@ -866 +856 @@
                         delete exporter;
                 }
-
-                /*ofstream objstr("objects.txt");
-
-                vector<KdLeaf *> leaves;
-                mKdTree->CollectLeaves(leaves);
-
-                vector<KdLeaf *>::const_iterator lit, lit_end = leaves.end();
-                for (lit = leaves.begin(); lit != lit_end; ++ lit)
-                {
-                        objstr << "objects: " << (*lit)->mObjects.size() << " bb " << mKdTree->GetBox(*lit) << endl;
-                }*/
-        }
-
+        }
 
         int rayCastMethod;

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

@@ -218 +218 @@
 
 char *
+StripPath(const char *s)
+{
+        const int len = strlen(s);
+
+        int i = len;
+        for (; i>0; i--) {
+                if (s[i]=='/' || s[i]=='\\')
+                        break;
+        }
+
+        char *filename = new char[len - i];
+        int j = 0;
+
+        for (; j < len - i; ++ j)
+                filename[j] = s[i + j + 1];
+        //filename[j] = 0;
+
+        return filename;
+}
+
+char *
 strdup(char *a)
 {

GTP/trunk/Lib/Vis/Preprocessing/src/common.h

@@ -499 +499 @@
 GetPath(const char *s);
 
+char *
+StripPath(const char *s);
 }
 

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

@@ -20 +20 @@
 #include "MeshKdTree.h"
 #include "Preprocessor.h"
-
+#include "common.h"
 
 #include "PreprocessorThread.h"
@@ -73 +73 @@
 
 
-static string GetInternKdTreeName(string &filename)
-{
-        //Environment::GetSingleton()->GetStringValue("Preprocessor.kdTreeFilename", internKdTree);
-        string suffix;
-
-        if (preprocessor->mLoadMeshes)
-        {
-                suffix = ".kdm";        
-        }
-        else
-        {
-                suffix = ".kdt";
-        }
-
-        // hack! should take any extension
-    if (strstr(filename.c_str(), ".x3d")) 
-        {
-                return ReplaceSuffix(filename, ".x3d", suffix);
-        } 
-        else if (strstr(filename.c_str(), ".dat"))
-        {
-                return ReplaceSuffix(filename, ".dat", suffix);
-        } 
-        else if (strstr(filename.c_str(), ".obj"))
-        {
-                return ReplaceSuffix(filename, ".dat", suffix);
-        }
-
-        cerr << "Error: Currently unsupported format for kd, filename " << filename << endl;
-
-        // return empty string
-        return string();
+static int SplitFilenames(const string str, vector<string> &filenames)
+{
+        int pos = 0;
+
+        while(1) {
+                int npos = (int)str.find(';', pos);
+                
+                if (npos < 0 || npos - pos < 1)
+                        break;
+                filenames.push_back(string(str, pos, npos - pos));
+                pos = npos + 1;
+        }
+        
+        filenames.push_back(string(str, pos, str.size() - pos));
+        return (int)filenames.size();
+}
+
+
+static string GetInternKdTreeName(const string &filename)
+{
+        vector<string> filenames;
+        const int files = SplitFilenames(filename, filenames);
+
+        vector<string>::const_iterator sit, sit_end = filenames.end();
+        string kdFilename;
+
+        int i = 0;
+        for (sit = filenames.begin(); sit != sit_end; ++ sit, ++ i)
+        {
+                string currentFile = *sit;
+                //cout << "here6 " << currentFile << endl;
+                string strippedFilename;
+
+                if (i == 0)
+                {       
+                        strippedFilename = currentFile;
+                }
+                else
+                {
+                        strippedFilename = string(StripPath(currentFile.c_str()));
+                }
+                
+                string suffix("_");
+
+                if (i == (int)filenames.size() - 1)
+                {
+                        if (preprocessor->mLoadMeshes)
+                        {
+                                suffix = ".kdm";        
+                        }
+                        else
+                        {
+                                suffix = ".kdt";
+                        }
+                }
+
+                if (strstr(strippedFilename.c_str(), ".x3d")) 
+                {
+                        kdFilename += ReplaceSuffix(strippedFilename, ".x3d", suffix);
+                }
+        else if (strstr(strippedFilename.c_str(), ".dat"))
+                {
+                        kdFilename += ReplaceSuffix(strippedFilename, ".dat", suffix);
+                } 
+                else if (strstr(strippedFilename.c_str(), ".obj"))
+                {
+                        kdFilename += ReplaceSuffix(strippedFilename, ".dat", suffix);
+                }
+                else
+                {
+                        cerr << "Error: Currently unsupported format for kd, filename " << currentFile << endl;
+                }
+        }
+
+        //cout << "kdfilename: " << kdFilename << endl;
+        return kdFilename;
 }
 
@@ -150 +194 @@
         Environment::GetSingleton()->GetStringValue("Scene.filename", buff);
         string filename(buff);
+        const string dummyname = GetInternKdTreeName(filename);
 
         if (!preprocessor->LoadScene(filename))