Changeset 1785 for GTP/trunk/Lib/Vis

Timestamp:

11/23/06 21:38:45 (18 years ago)

Author:

bittner

Message:

merge, filter update, renderebuffer made functional

Location:

GTP/trunk/Lib/Vis/Preprocessing/src

Files:

• BvHierarchy.cpp (modified) (3 diffs)
• BvHierarchy.h (modified) (2 diffs)
• Environment.cpp (modified) (3 diffs)
• GlRenderer.cpp (modified) (9 diffs)
• GlRenderer.h (modified) (7 diffs)
• Makefile (modified) (1 diff)
• OcclusionQuery.cpp (modified) (1 diff)
• Preprocessor.cpp (modified) (2 diffs)
• Preprocessor.h (modified) (2 diffs)
• QtGlRenderer.cpp (modified) (12 diffs)
• QtGlRenderer.h (modified) (1 diff)
• RssPreprocessor.cpp (modified) (18 diffs)
• RssPreprocessor.h (modified) (1 diff)
• RssTree.cpp (modified) (7 diffs)
• SamplingStrategy.cpp (modified) (1 diff)
• ViewCellsManager.cpp (modified) (7 diffs)
• VssRay.h (modified) (1 diff)
• default.env (modified) (6 diffs)
• main.cpp (modified) (1 diff)
• run_test2 (modified) (4 diffs)

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

@@ -118 +118 @@
 BvhLeaf::BvhLeaf(const AxisAlignedBox3 &bbox):
 BvhNode(bbox), 
-mSubdivisionCandidate(NULL)
-{
-        mActiveNode = this;
+mSubdivisionCandidate(NULL),
+mGlList(0)
+{
+  mActiveNode = this;
 }
 
 
 BvhLeaf::BvhLeaf(const AxisAlignedBox3 &bbox, BvhInterior *parent):
-BvhNode(bbox, parent)
+  BvhNode(bbox, parent),
+  mGlList(0)
+  
 {
         mActiveNode = this;
@@ -134 +137 @@
                                  BvhInterior *parent, 
                                  const int numObjects):
-BvhNode(bbox, parent)
+  BvhNode(bbox, parent),
+  mGlList(0)
+
 {
         mObjects.reserve(numObjects);
@@ -295 +300 @@
         Environment::GetSingleton()->GetIntValue("BvHierarchy.minRaysForVisibility", mMinRaysForVisibility);
         Environment::GetSingleton()->GetIntValue("BvHierarchy.maxTests", mMaxTests);
-        Environment::GetSingleton()->GetBoolValue("BvHierarchy.Construction.useInitialSubdivision", mApplyInitialPartition);
+        //      Environment::GetSingleton()->GetBoolValue("BvHierarchy.Construction.useInitialSubdivision", mApplyInitialPartition);
         
         mInitialObjectsSize = 50;

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

@@ -327 +327 @@
         */
         BvhLeaf(const AxisAlignedBox3 &bbox);
-        BvhLeaf(const AxisAlignedBox3 &bbox, BvhInterior *parent);
+  BvhLeaf(const AxisAlignedBox3 &bbox, BvhInterior *parent);
         BvhLeaf(const AxisAlignedBox3 &bbox, BvhInterior *parent, const int numObjects);
 
@@ -363 +363 @@
 
 public:
-
-        /// objects
-        ObjectContainer mObjects;
-
+  // gl list use to store the geometry on the gl server
+  int mGlList;
+  
+  /// objects
+  ObjectContainer mObjects;
+  
 protected:
-
-        /// pointer to a split plane candidate splitting this leaf
-        SubdivisionCandidate *mSubdivisionCandidate;
-
-        /// the active node which will be accounted for in the pvs
-        BvhNode *mActiveNode;
+  
+  /// pointer to a split plane candidate splitting this leaf
+  SubdivisionCandidate *mSubdivisionCandidate;
+  
+  /// the active node which will be accounted for in the pvs
+  BvhNode *mActiveNode;
 };
 

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

@@ -1228 +1228 @@
                                  "true");
 
+  
    RegisterOption("VssPreprocessor.enlargeViewSpace",
                                  optBool,
@@ -1725 +1726 @@
                                         "true");
 
+        RegisterOption("Preprocessor.evaluateFilter",
+                                   optBool,
+                                   "preprocessor_evaluate_filter",
+                                   "false");
+
         RegisterOption("Preprocessor.delayVisibilityComputation",
                                    optBool,
@@ -1891 +1897 @@
                                         optBool,
                                         "rss_use_importance",
+                                        "true");
+
+        RegisterOption("RssPreprocessor.useRssTree",
+                                        optBool,
+                                        "rss_use_rss_tree",
                                         "true");
 

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

@@ -25 +25 @@
 static bool nvQuerySupport = false;
 
+GLuint frontDepthMap;
+GLuint backDepthMap;
+
+const int depthMapSize = 512;
 
 static void InitExtensions() 
@@ -80 +84 @@
   mUseForcedColors = false;
   mRenderBoxes = false;
-  mUseGlLists = true;
-  //mUseGlLists = false;
+  //  mUseGlLists = true;
+  mUseGlLists = false;
 }
 
@@ -133 +137 @@
   case Intersectable::BVH_INTERSECTABLE: {
 
-          BvhNode *node = dynamic_cast<BvhNode *>(object);
-
+        BvhNode *node = dynamic_cast<BvhNode *>(object);
+        
         if (mRenderBoxes)
           RenderBox(node->GetBoundingBox());
@@ -143 +147 @@
   case Intersectable::KD_INTERSECTABLE: {
         KdNode *node = (dynamic_cast<KdIntersectable *>(object))->GetItem();
-
+        
         if (mRenderBoxes)
           RenderBox(mKdTree->GetBox(node));
@@ -293 +297 @@
   glLoadIdentity();
 
+  glFrontFace(GL_CCW);
+  glCullFace(GL_BACK);
   glEnable(GL_CULL_FACE);
   glShadeModel(GL_FLAT);
@@ -402 +408 @@
 GlRenderer::RenderScene()
 {
+  Intersectable::NewMail();
   static int glList = -1;
   if (mUseGlLists) {
@@ -459 +466 @@
 GlRenderer(sceneGraph, viewcells, tree)  
 {
-        mPixelBuffer = NULL;
-
-        // implement width and height in subclasses
+  Environment::GetSingleton()->GetIntValue("Preprocessor.pvsRenderErrorSamples", mPvsStatFrames);
+  mPvsErrorBuffer.resize(mPvsStatFrames);
+  ClearErrorBuffer();
+  
+  mPixelBuffer = NULL;
+  
+  // implement width and height in subclasses
 }
 
@@ -647 +658 @@
   if (node->IsLeaf()) {
         BvhLeaf *leaf = (BvhLeaf *) node;
-        for (int i=0; i < leaf->mObjects.size(); i++)
-          RenderIntersectable(leaf->mObjects[i]);
+
+#if 0
+        if (leaf->mGlList == 0) {
+          leaf->mGlList = glGenLists(1);
+          if (leaf->mGlList != 0)
+                glNewList(leaf->mGlList, GL_COMPILE);
+          
+          for (int i=0; i < leaf->mObjects.size(); i++)
+                RenderIntersectable(leaf->mObjects[i]);
+          
+          if (leaf->mGlList != 0)
+                glEndList();
+        }
+        
+        if (leaf->mGlList != 0)
+          glCallList(leaf->mGlList);
+#else
+          for (int i=0; i < leaf->mObjects.size(); i++)
+                RenderIntersectable(leaf->mObjects[i]);
+#endif
   } else {
         BvhInterior *in = (BvhInterior *)node;
@@ -675 +704 @@
 }
 
-}
+
+
+
+
+
+
+void
+GlRendererBuffer::EvalRenderCostSample(RenderCostSample &sample,
+                                                                           const bool useOcclusionQueries,
+                                                                           const int threshold
+                                                                           )
+{
+  // choose a random view point
+  mViewCellsManager->GetViewPoint(mViewPoint);
+  sample.mPosition = mViewPoint;
+  //cout << "viewpoint: " << mViewPoint << endl;
+  
+  // take a render cost sample by rendering a cube
+  Vector3 directions[6];
+  
+  directions[0] = Vector3(1,0,0);
+  directions[1] = Vector3(0,1,0);
+  directions[2] = Vector3(0,0,1);
+  directions[3] = Vector3(-1,0,0);
+  directions[4] = Vector3(0,-1,0);
+  directions[5] = Vector3(0,0,-1);
+  
+  sample.mVisibleObjects = 0;
+  
+  // reset object counters
+  ObjectContainer::const_iterator it, it_end = mObjects.end();
+  
+  for (it = mObjects.begin(); it != it_end; ++ it) 
+        {
+          (*it)->mCounter = 0;
+        }
+
+  ++ mFrame;
+  
+  //glCullFace(GL_FRONT);
+  glCullFace(GL_BACK);
+  glDisable(GL_CULL_FACE);
+  
+  
+        // query all 6 directions for a full point sample
+  for (int i = 0; i < 6; ++ i) 
+        {
+          mViewDirection = directions[i];
+          SetupCamera();
+          
+          glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
+          glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+          //glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);    glDepthMask(GL_TRUE);
+          glDepthFunc(GL_LESS);
+          
+          mUseFalseColors = true;
+          
+          // the actual scene rendering fills the depth (for occlusion queries)
+          // and the frame buffer (for item buffer)
+          RenderScene();
+          
+          
+          if (0) 
+                {
+                  char filename[256];
+                  sprintf(filename, "snap/frame-%04d-%d.png", mFrame, i);
+                  //              QImage im = toImage();
+                  //              im.save(filename, "PNG");
+                }
+          
+          // evaluate the sample
+          if (useOcclusionQueries) 
+                {
+                  EvalQueryWithOcclusionQueries();
+                }
+          else 
+                {
+                  EvalQueryWithItemBuffer();
+                }
+        }  
+  
+  // now evaluate the statistics over that sample
+  // currently only the number of visible objects is taken into account
+  sample.Reset();
+  
+  for (it = mObjects.begin(); it != it_end; ++ it) 
+        {
+          Intersectable *obj = *it;
+          if (obj->mCounter >= threshold) 
+                {
+                  ++ sample.mVisibleObjects;
+                  sample.mVisiblePixels += obj->mCounter;
+                }
+        }
+  
+  //cout << "RS=" << sample.mVisibleObjects << " ";
+}
+
+
+GlRendererBuffer::~GlRendererBuffer()
+{
+#if USE_CG
+  if (sCgFragmentProgram)
+                cgDestroyProgram(sCgFragmentProgram);
+        if (sCgContext)
+                cgDestroyContext(sCgContext);
+#endif
+}
+
+
+void
+GlRendererBuffer::SampleRenderCost(const int numSamples,
+                                                                   vector<RenderCostSample> &samples,
+                                                                   const bool useOcclusionQueries,
+                                                                   const int threshold
+                                                                   )
+{
+  MakeCurrent();
+
+  if (mPixelBuffer == NULL)
+          mPixelBuffer = new unsigned int[GetWidth()*GetHeight()];
+  
+  // using 90 degree projection to capture 360 view with 6 samples
+  SetupProjection(GetHeight(), GetHeight(), 90.0f);
+
+  //samples.resize(numSamples);
+  halton.Reset();
+  
+  // the number of queries queried in batch mode
+  const int numQ = 500;
+
+  //const int numQ = (int)mObjects.size();
+  if (useOcclusionQueries)
+  {
+          cout << "\ngenerating " << numQ << " queries ... ";
+          OcclusionQuery::GenQueries(mOcclusionQueries, numQ);
+          cout << "finished" << endl;
+  }
+
+  // sampling queries 
+  for (int i = 0; i < numSamples; ++ i)
+  {
+          cout << ".";
+          EvalRenderCostSample(samples[i], useOcclusionQueries, threshold);
+  }
+
+  DoneCurrent();
+}
+  
+
+
+
+
+void
+GlRendererBuffer::ClearErrorBuffer()
+{
+  for (int i=0; i < mPvsStatFrames; i++) {
+        mPvsErrorBuffer[i].mError = 1.0f;
+  }
+}
+
+
+void
+GlRendererBuffer::EvalPvsStat()
+{
+  mPvsStat.Reset();
+  halton.Reset();
+
+  MakeCurrent();
+
+  SetupProjection(GetWidth(), GetHeight());
+
+  cout<<"mPvsStatFrames="<<mPvsStatFrames<<endl;
+  
+  for (int i=0; i < mPvsStatFrames; i++) {
+        float err;
+        // set frame id for saving the error buffer
+        mFrame = i;
+        RandomViewPoint();
+
+        // atlanta problematic frames: 325 525 691 1543
+#if 0
+        if (mFrame != 325 &&
+                mFrame != 525 &&
+                mFrame != 691 &&
+                mFrame != 1543)
+          mPvsErrorBuffer[i] = -1;
+        else {
+          Debug<<"frame ="<<mFrame<<" vp="<<mViewPoint<<" vd="<<mViewDirection<<endl;
+        }
+#endif
+        
+        if (mPvsErrorBuffer[i].mError > 0.0f) {
+          int pvsSize;
+
+
+          float error = GetPixelError(pvsSize);
+          mPvsErrorBuffer[i].mError = error;
+          mPvsErrorBuffer[i].mPvsSize = pvsSize;
+
+          //      emit UpdatePvsErrorItem(i,
+          //                                                      mPvsErrorBuffer[i]);
+
+          cout<<"("<<i<<","<<mPvsErrorBuffer[i].mError<<")";
+          //      swapBuffers();
+        }
+        
+        err = mPvsErrorBuffer[i].mError;
+        
+        if (err >= 0.0f) {
+          if (err > mPvsStat.maxError)
+                mPvsStat.maxError = err;
+          mPvsStat.sumError += err;
+          mPvsStat.sumPvsSize += mPvsErrorBuffer[i].mPvsSize;
+          
+          if (err == 0.0f)
+                mPvsStat.errorFreeFrames++;
+          mPvsStat.frames++;
+        }
+  }
+
+  glFinish();
+  DoneCurrent();
+
+  cout<<endl<<flush;
+  //  mRenderingFinished.wakeAll();
+}
+
+
+
+
+
+
+
+void GlRendererBuffer::SampleBeamContributions(Intersectable *sourceObject,
+                                                                                           Beam &beam,
+                                                                                           const int desiredSamples,
+                                                                                           BeamSampleStatistics &stat)
+{
+        // TODO: should be moved out of here (not to be done every time)
+        // only back faces are interesting for the depth pass
+        glShadeModel(GL_FLAT);
+        glDisable(GL_LIGHTING);
+
+        // needed to kill the fragments for the front buffer
+        glEnable(GL_ALPHA_TEST);
+        glAlphaFunc(GL_GREATER, 0);
+
+        // assumes that the beam is constructed and contains kd-tree nodes
+        // and viewcells which it intersects
+  
+  
+        // Get the number of viewpoints to be sampled
+        // Now it is a sqrt but in general a wiser decision could be made.
+        // The less viewpoints the better for rendering performance, since less passes
+        // over the beam is needed.
+        // The viewpoints could actually be generated outside of the bounding box which
+        // would distribute the 'efective viewpoints' of the object surface and thus
+        // with a few viewpoints better sample the viewpoint space....
+
+        //TODO: comment in
+        //int viewPointSamples = sqrt((float)desiredSamples);
+        int viewPointSamples = max(desiredSamples / (GetWidth() * GetHeight()), 1);
+        
+        // the number of direction samples per pass is given by the number of viewpoints
+        int directionalSamples = desiredSamples / viewPointSamples;
+        
+        Debug << "directional samples: " << directionalSamples << endl;
+        for (int i = 0; i < viewPointSamples; ++ i) 
+        {
+                Vector3 viewPoint = beam.mBox.GetRandomPoint();
+                
+                // perhaps the viewpoint should be shifted back a little bit so that it always lies
+                // inside the source object
+                // 'ideally' the viewpoints would be distributed on the soureObject surface, but this
+        // would require more complicated sampling (perhaps hierarchical rejection sampling of
+                // the object surface is an option here - only the mesh faces which are inside the box
+                // are considered as candidates) 
+                
+                SampleViewpointContributions(sourceObject,
+                                                                         viewPoint,
+                                                                         beam,
+                                                                         directionalSamples,
+                                                                         stat);
+        }
+
+
+        // note:
+        // this routine would be called only if the number of desired samples is sufficiently
+        // large - for other rss tree cells the cpu based sampling is perhaps more efficient
+        // distributing the work between cpu and gpu would also allow us to place more sophisticated
+        // sample distributions (silhouette ones) using the cpu and the jittered once on the GPU
+        // in order that thios scheme is working well the gpu render buffer should run in a separate
+        // thread than the cpu sampler, which would not be such a big problem....
+
+        // disable alpha test again
+        glDisable(GL_ALPHA_TEST);
+}
+
+
+
+void GlRendererBuffer::SampleViewpointContributions(Intersectable *sourceObject,
+                                                                                                        const Vector3 viewPoint,
+                                                                                                        Beam &beam,
+                                                                                                        const int samples,
+                                                    BeamSampleStatistics &stat)
+{
+    // 1. setup the view port to match the desired samples
+        glViewport(0, 0, samples, samples);
+
+        // 2. setup the projection matrix and view matrix to match the viewpoint + beam.mDirBox
+        SetupProjectionForViewPoint(viewPoint, beam, sourceObject);
+
+
+        // 3. reset z-buffer to 0 and render the source object for the beam
+        //    with glCullFace(Enabled) and glFrontFace(GL_CW)
+        //    save result to the front depth map
+        //    the front depth map holds ray origins
+
+
+        // front depth buffer must be initialised to 0
+        float clearDepth;
+        
+        glGetFloatv(GL_DEPTH_CLEAR_VALUE, &clearDepth);
+        glClearDepth(0.0f);
+        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
+
+
+        // glFrontFace(GL_CCW);
+        glEnable(GL_CULL_FACE);
+        glCullFace(GL_FRONT);
+        glColorMask(0, 0, 0, 0);
+        
+
+        // stencil is increased where the source object is located
+        glEnable(GL_STENCIL_TEST);      
+        glStencilFunc(GL_ALWAYS, 0x1, 0x1);
+        glStencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE);
+
+
+#if 0
+        static int glSourceObjList = -1;         
+        if (glSourceObjList != -1) 
+        {
+                glSourceObjList = glGenLists(1);
+                glNewList(glSourceObjList, GL_COMPILE);
+
+                RenderIntersectable(sourceObject);
+        
+                glEndList();
+        }
+        glCallList(glSourceObjList);
+
+#else
+        RenderIntersectable(sourceObject);
+
+#endif  
+
+         // copy contents of the front depth buffer into depth texture
+        glBindTexture(GL_TEXTURE_2D, frontDepthMap);    
+        glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, depthMapSize, depthMapSize);
+
+
+        // reset clear function
+        glClearDepth(clearDepth);
+
+        
+        
+        // 4. set up the termination depth buffer (= standard depth buffer)
+        //    only rays which have non-zero entry in the origin buffer are valid since
+        //    they realy start on the object surface (this is tagged by setting a
+        //    stencil buffer bit at step 3).
+        
+        glStencilFunc(GL_EQUAL, 0x1, 0x1);
+        glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
+
+        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+        glDepthMask(1);
+
+        glEnable(GL_DEPTH_TEST);
+                
+        glEnable(GL_CULL_FACE);
+        glCullFace(GL_BACK);
+
+        // setup front depth buffer
+        glEnable(GL_TEXTURE_2D);
+        
+#if USE_CG
+        // bind pixel shader implementing the front depth buffer functionality
+        cgGLBindProgram(sCgFragmentProgram);
+        cgGLEnableProfile(sCgFragmentProfile);
+#endif
+
+        // 5. render all objects inside the beam 
+        //    we can use id based false color to read them back for gaining the pvs
+
+        glColorMask(1, 1, 1, 1);
+
+        
+        // if objects not stored in beam => extract objects
+        if (beam.mFlags & !Beam::STORE_OBJECTS)
+        {
+                vector<KdNode *>::const_iterator it, it_end = beam.mKdNodes.end();
+
+                Intersectable::NewMail();
+                for (it = beam.mKdNodes.begin(); it != it_end; ++ it)
+                {
+                        mKdTree->CollectObjects(*it, beam.mObjects);
+                }
+        }
+
+
+        //    (objects can be compiled to a gl list now so that subsequent rendering for
+        //    this beam is fast - the same hold for step 3)
+        //    Afterwards we have two depth buffers defining the ray origin and termination
+        
+
+#if 0
+        static int glObjList = -1; 
+        if (glObjList != -1) 
+        {
+                glObjList = glGenLists(1);
+                glNewList(glObjList, GL_COMPILE);
+        
+                ObjectContainer::const_iterator it, it_end = beam.mObjects.end();
+                for (it = beam.mObjects.begin(); it != it_end; ++ it)
+                {
+                        // render all objects except the source object
+                        if (*it != sourceObject)
+                                RenderIntersectable(*it);
+                }
+                
+                glEndList();
+        }
+
+        glCallList(glObjList);
+#else
+        ObjectContainer::const_iterator it, it_end = beam.mObjects.end();
+        for (it = beam.mObjects.begin(); it != it_end; ++ it)
+        {       
+                // render all objects except the source object
+                if (*it != sourceObject)
+                        RenderIntersectable(*it);
+        }
+#endif
+        
+   
+
+        // 6. Use occlusion queries for all viewcell meshes associated with the beam ->
+        //     a fragment passes if the corresponding stencil fragment is set and its depth is
+        //     between origin and termination buffer
+
+        // create new queries if necessary
+        OcclusionQuery::GenQueries(mOcclusionQueries, (int)beam.mViewCells.size());
+
+        // check whether any backfacing polygon would pass the depth test?
+        // matt: should check both back /front facing because of dual depth buffer
+        // and danger of cutting the near plane with front facing polys.
+        
+        glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
+        glDepthMask(GL_FALSE);
+        glDisable(GL_CULL_FACE);
+
+  
+        ViewCellContainer::const_iterator vit, vit_end = beam.mViewCells.end();
+
+        int queryIdx = 0;
+
+        for (vit = beam.mViewCells.begin(); vit != vit_end; ++ vit)
+        {
+                mOcclusionQueries[queryIdx ++]->BeginQuery();
+
+                RenderIntersectable(*vit);
+                
+                mOcclusionQueries[queryIdx]->EndQuery();
+
+                ++ queryIdx;
+        }
+
+
+
+        // at this point, if possible, go and do some other computation
+
+
+        
+        // 7. The number of visible pixels is the number of sample rays which see the source
+        //    object from the corresponding viewcell -> remember these values for later update
+        //   of the viewcell pvs - or update immediately?
+
+        queryIdx = 0;
+
+        for (vit = beam.mViewCells.begin(); vit != vit_end; ++ vit)
+        {
+                // fetch queries
+                unsigned int pixelCount = mOcclusionQueries[queryIdx ++]->GetQueryResult();
+
+                if (pixelCount)
+                        Debug << "view cell " << (*vit)->GetId() << " visible pixels: " << pixelCount << endl;
+        }
+        
+
+        // 8. Copmpute rendering statistics
+        // In general it is not neccessary to remember to extract all the rays cast. I hope it
+        // would be sufficient to gain only the intergral statistics about the new contributions
+        // and so the rss tree would actually store no new rays (only the initial ones)
+        // the subdivision of the tree would only be driven by the statistics (the glrender could
+        // evaluate the contribution entropy for example)
+        // However might be an option to extract/store only those the rays which made a contribution
+        // (new viewcell has been discovered) or relative contribution greater than a threshold ... 
+
+        ObjectContainer pvsObj;
+        stat.pvsSize = ComputePvs(beam.mObjects, pvsObj);
+        
+        // to gain ray source and termination
+        // copy contents of ray termination buffer into depth texture
+        // and compare with ray source buffer
+#if 0
+        VssRayContainer rays;
+
+        glBindTexture(GL_TEXTURE_2D, backDepthMap);     
+        glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, depthMapSize, depthMapSize);
+
+        ComputeRays(Intersectable *sourceObj, rays);
+
+#endif
+
+
+
+        //-- cleanup
+
+
+        // reset gl state
+        glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
+        glDepthMask(GL_TRUE);
+        glEnable(GL_CULL_FACE);
+        glDisable(GL_STENCIL_TEST);
+#if USE_CG
+        cgGLDisableProfile(sCgFragmentProfile);
+#endif
+        glDisable(GL_TEXTURE_2D);
+
+        // remove objects from beam
+        if (beam.mFlags & !Beam::STORE_OBJECTS)
+                beam.mObjects.clear();
+}
+
+
+void GlRendererBuffer::SetupProjectionForViewPoint(const Vector3 &viewPoint, 
+                                                                                                   const Beam &beam, 
+                                                                                                   Intersectable *sourceObject)
+{
+        float left, right, bottom, top, znear, zfar;
+
+        beam.ComputePerspectiveFrustum(left, right, bottom, top, znear, zfar,
+                                                                   mSceneGraph->GetBox());
+
+        //Debug << left << " " << right << " " << bottom << " " << top << " " << znear << " " << zfar << endl;
+        glMatrixMode(GL_PROJECTION);
+        glLoadIdentity();
+        glFrustum(left, right, bottom, top, znear, zfar);
+        //glFrustum(-1, 1, -1, 1, 1, 20000);
+
+    const Vector3 center = viewPoint + beam.GetMainDirection() * (zfar - znear) * 0.3f;
+        const Vector3 up = 
+                Normalize(CrossProd(beam.mPlanes[0].mNormal, beam.mPlanes[4].mNormal));
+
+#ifdef GTP_DEBUG
+        Debug << "view point: " << viewPoint << endl;
+        Debug << "eye: " << center << endl;
+        Debug << "up: " << up << endl;
+#endif
+
+        glMatrixMode(GL_MODELVIEW);
+        glLoadIdentity();
+        gluLookAt(viewPoint.x, viewPoint.y, viewPoint.z, 
+                          center.x, center.y, center.z,                   
+                          up.x, up.y, up.z);
+}               
+
+  
+void GlRendererBuffer::InitGL()
+{
+  MakeCurrent(); 
+  GlRenderer::InitGL();
+
+#if 1
+        // initialise dual depth buffer textures
+        glGenTextures(1, &frontDepthMap);
+        glBindTexture(GL_TEXTURE_2D, frontDepthMap);
+        
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, depthMapSize, 
+                                 depthMapSize, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, NULL);
+
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
+
+        glGenTextures(1, &backDepthMap);
+        glBindTexture(GL_TEXTURE_2D, backDepthMap);
+        
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, depthMapSize, 
+                                 depthMapSize, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, NULL);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
+
+        
+#if USE_CG
+        // cg initialization
+        cgSetErrorCallback(handleCgError);
+        sCgContext = cgCreateContext();
+        
+        if (cgGLIsProfileSupported(CG_PROFILE_ARBFP1))
+                sCgFragmentProfile = CG_PROFILE_ARBFP1;
+        else 
+        {
+          // try FP30
+          if (cgGLIsProfileSupported(CG_PROFILE_FP30))
+            sCgFragmentProfile = CG_PROFILE_FP30;
+          else 
+          {
+                  Debug << "Neither arbfp1 or fp30 fragment profiles supported on this system" << endl;
+                  exit(1);
+          }
+  }
+
+ sCgFragmentProgram = cgCreateProgramFromFile(sCgContext,
+                                                                                           CG_SOURCE, "../src/dual_depth.cg",
+                                                                                           sCgFragmentProfile,
+                                                                                           NULL, 
+                                                                                           NULL);
+
+  if (!cgIsProgramCompiled(sCgFragmentProgram))
+          cgCompileProgram(sCgFragmentProgram);
+
+  cgGLLoadProgram(sCgFragmentProgram);
+  cgGLBindProgram(sCgFragmentProgram);
+
+  Debug << "---- PROGRAM BEGIN ----\n" <<
+          cgGetProgramString(sCgFragmentProgram, CG_COMPILED_PROGRAM) << "---- PROGRAM END ----\n";
+
+#endif
+
+#endif
+  DoneCurrent();
+}
+
+
+void GlRendererBuffer::ComputeRays(Intersectable *sourceObj, VssRayContainer &rays)
+{
+        for (int i = 0; i < depthMapSize * depthMapSize; ++ i)
+        {
+                //todo glGetTexImage()
+        }
+}
+
+
+
+
+
+
+
+
+
+
+
+
+}

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

@@ -190 +190 @@
                                  KdTree *tree);
 
+  virtual ~GlRendererBuffer();
 
         /** Evaluates render cost of a point sample.
@@ -196 +197 @@
                 @param threshold number of pixels / samples from where an object is considered visible.
         */
-        void EvalRenderCostSample(RenderCostSample &sample,
+  virtual void EvalRenderCostSample(RenderCostSample &sample,
                                                           const bool useOcclusionQueries,
                                                           const int threshold);
@@ -208 +209 @@
                 @param threshold number of pixels / samples from where an object is considered visible.
         */
-        void SampleRenderCost(const int numSamples, 
-                                                  vector<RenderCostSample> &samples,
-                                                  const bool useOcclusionQueries,
-                                                  const int threshold = 0)
-        {}
+  virtual void SampleRenderCost(const int numSamples, 
+                                                                vector<RenderCostSample> &samples,
+                                                                const bool useOcclusionQueries,
+                                                                const int threshold = 0);
+  
 
         /** Implerment in subclasses.
         */
-        void EvalPvsStat() {};
-
-        void ClearErrorBuffer();
-  
-
-  virtual int GetWidth() const { return 0; }
-  virtual int GetHeight() const { return 0; }
-
-
-  void RandomViewPoint();
-  void SampleBeamContributions(
+  virtual void EvalPvsStat();
+
+  virtual void ClearErrorBuffer();
+  
+
+  virtual int GetWidth() const = 0;
+  virtual int GetHeight() const  = 0; 
+
+  virtual void MakeCurrent() = 0;
+  virtual void DoneCurrent() = 0;
+  
+
+  virtual void RandomViewPoint();
+  virtual void SampleBeamContributions(
                                                            Intersectable *sourceObject,
                                                            Beam &beam,
@@ -233 +237 @@
                                                            );
 
-  void
+  virtual void
   SampleViewpointContributions(
                                                            Intersectable *sourceObject,
@@ -242 +246 @@
                                                            );
 
-  void InitGL();
+  virtual void InitGL();
 
   /** Computes rays from information gained with hw sampling-
   */
-  void ComputeRays(Intersectable *sourceObj, VssRayContainer &rays);
-
-  int ComputePvs() const;
-
-  float
-  GetPixelError(int &pvsSize);
-
-  int ComputePvs(ObjectContainer &objects, ObjectContainer &pvs) const;
-
+  virtual void ComputeRays(Intersectable *sourceObj, VssRayContainer &rays);
+
+  virtual int ComputePvs() const = 0;
+
+  virtual float
+  GetPixelError(int &pvsSize) = 0;
+  
+  virtual int ComputePvs(ObjectContainer &objects, ObjectContainer &pvs) const = 0;
+  
   PvsRenderStatistics mPvsStat;
    
@@ -270 +274 @@
   
 protected:
-        unsigned int *mPixelBuffer;
-  
-        static void GenQueries(const int numQueries);
+  unsigned int *mPixelBuffer;
+  
+  static void GenQueries(const int numQueries);
         
-        void SetupProjectionForViewPoint(const Vector3 &viewPoint, 
+  virtual void SetupProjectionForViewPoint(const Vector3 &viewPoint, 
                                                                          const Beam &beam, 
 
@@ -281 +285 @@
         /** Evaluates query for one direction using item buffer.
         */
-        void EvalQueryWithItemBuffer();
+  virtual void EvalQueryWithItemBuffer();
 
         /** Evaluates query for one direction using occlusion queries.
         */
-        void EvalQueryWithOcclusionQueries();
+  virtual void EvalQueryWithOcclusionQueries();
 
 public:

GTP/trunk/Lib/Vis/Preprocessing/src/Makefile

@@ -1 +1 @@
 #############################################################################
 # Makefile for building: preprocessor
-# Generated by qmake (2.00a) (Qt 4.1.2) on: Thu Nov 16 14:37:00 2006
+# Generated by qmake (2.00a) (Qt 4.1.2) on: ?t 23. XI 14:54:07 2006
 # Project:  preprocessor.pro
 # Template: app

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

@@ -8 +8 @@
 namespace GtpVisibilityPreprocessor {
 
-bool OcclusionQuery::sUseArbQueries = true;
+bool OcclusionQuery::sUseArbQueries = false;
 
 

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

@@ -138 +138 @@
         // renderer will be constructed when the scene graph and viewcell manager will be known
         renderer = NULL;
-  
+        
         Environment::GetSingleton()->GetBoolValue("Preprocessor.delayVisibilityComputation",
                                                                                           mDelayVisibilityComputation);
@@ -705 +705 @@
         mViewCellsManager->SetRenderer(mRenderSimulator);
 
-        if (mUseGlRenderer || mUseGlDebugger)
-        {
-                // NOTE: render texture should be power of 2 and square
-                // renderer must be initialised
-                // $$matt
-                //              renderer = new GlRendererBuffer(1024, 768, mSceneGraph, mViewCellsManager, mKdTree);
-                //              renderer->makeCurrent();
-
-        }
-
+        
         mViewCellsManager->SetPreprocessor(this);
         return true;

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

@@ -204 +204 @@
   ofstream mStats;
 
+  GlRendererBuffer *renderer;
+
 protected:
 
@@ -233 +235 @@
         vector<FaceParentInfo> mFaceParents;
 
-        GlRendererBuffer *renderer;
 
         /// if box around view space should be used

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

@@ -35 +35 @@
 static CGprofile sCgFragmentProfile;
 
-GLuint frontDepthMap;
-GLuint backDepthMap;
-
-const int depthMapSize = 512;
 
 //static vector<OcclusionQuery *> sQueries;
@@ -60 +56 @@
 
 void
-QtGlRendererBuffer::EvalRenderCostSample(RenderCostSample &sample,
-                                                                                 const bool useOcclusionQueries,
-                                                                                 const int threshold
-                                                                                 )
-{
-        // choose a random view point
-        mViewCellsManager->GetViewPoint(mViewPoint);
-        sample.mPosition = mViewPoint;
-        //cout << "viewpoint: " << mViewPoint << endl;
-
-        // take a render cost sample by rendering a cube
-        Vector3 directions[6];
-
-        directions[0] = Vector3(1,0,0);
-        directions[1] = Vector3(0,1,0);
-        directions[2] = Vector3(0,0,1);
-        directions[3] = Vector3(-1,0,0);
-        directions[4] = Vector3(0,-1,0);
-        directions[5] = Vector3(0,0,-1);
-
-        sample.mVisibleObjects = 0;
-
-        // reset object counters
-        ObjectContainer::const_iterator it, it_end = mObjects.end();
-
-        for (it = mObjects.begin(); it != it_end; ++ it) 
-        {
-                (*it)->mCounter = 0;
-        }
-
-        ++ mFrame;
-
-        //glCullFace(GL_FRONT);
-        glCullFace(GL_BACK);
-        glDisable(GL_CULL_FACE);
-        
-
-        // query all 6 directions for a full point sample
-        for (int i = 0; i < 6; ++ i) 
-        {
-                mViewDirection = directions[i];
-                SetupCamera();
-
-                glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
-                glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-                //glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);      glDepthMask(GL_TRUE);
-                glDepthFunc(GL_LESS);
-
-                mUseFalseColors = true;
-
-                // the actual scene rendering fills the depth (for occlusion queries)
-                // and the frame buffer (for item buffer)
-                RenderScene();
-
-
-                if (0) 
-                {
-                        char filename[256];
-                        sprintf(filename, "snap/frame-%04d-%d.png", mFrame, i);
-                        QImage im = toImage();
-                        im.save(filename, "PNG");
-                }
-         
-                // evaluate the sample
-                if (useOcclusionQueries) 
-                {
-                        EvalQueryWithOcclusionQueries();
-                }
-                else 
-                {
-                        EvalQueryWithItemBuffer();
-                }
-        }  
-
-        // now evaluate the statistics over that sample
-        // currently only the number of visible objects is taken into account
-        sample.Reset();
-
-        for (it = mObjects.begin(); it != it_end; ++ it) 
-        {
-                Intersectable *obj = *it;
-                if (obj->mCounter >= threshold) 
-                {
-                        ++ sample.mVisibleObjects;
-                        sample.mVisiblePixels += obj->mCounter;
-                }
-        }
-
-        //cout << "RS=" << sample.mVisibleObjects << " ";
-}
-
-
-QtGlRendererBuffer::~QtGlRendererBuffer()
-{
-#if USE_CG
-  if (sCgFragmentProgram)
-                cgDestroyProgram(sCgFragmentProgram);
-        if (sCgContext)
-                cgDestroyContext(sCgContext);
-#endif
-}
-
-
-void
-QtGlRendererBuffer::SampleRenderCost(const int numSamples,
-                                                                         vector<RenderCostSample> &samples,
-                                                                         const bool useOcclusionQueries,
-                                                                         const int threshold
-                                                                         )
+QtGlRendererBuffer::MakeCurrent()
 {
   makeCurrent();
-
-  if (mPixelBuffer == NULL)
-          mPixelBuffer = new unsigned int[GetWidth()*GetHeight()];
-  
-  // using 90 degree projection to capture 360 view with 6 samples
-  SetupProjection(GetHeight(), GetHeight(), 90.0f);
-
-  //samples.resize(numSamples);
-  halton.Reset();
-  
-  // the number of queries queried in batch mode
-  const int numQ = 500;
-
-  //const int numQ = (int)mObjects.size();
-  if (useOcclusionQueries)
-  {
-          cout << "\ngenerating " << numQ << " queries ... ";
-          OcclusionQuery::GenQueries(mOcclusionQueries, numQ);
-          cout << "finished" << endl;
-  }
-
-  // sampling queries 
-  for (int i = 0; i < numSamples; ++ i)
-  {
-          cout << ".";
-          EvalRenderCostSample(samples[i], useOcclusionQueries, threshold);
-  }
-
+}
+
+void
+QtGlRendererBuffer::DoneCurrent()
+{
   doneCurrent();
-
-}
-  
-
+}
+  
 
 QtGlRendererBuffer::QtGlRendererBuffer(const int w,
@@ -210 +73 @@
                                                                            ViewCellsManager *viewcells,
                                                                            KdTree *tree):
-  QGLPixelBuffer(QSize(w, h)), GlRendererBuffer(sceneGraph, viewcells, tree) {
-  
-  Environment::GetSingleton()->GetIntValue("Preprocessor.pvsRenderErrorSamples", mPvsStatFrames);
-  mPvsErrorBuffer.resize(mPvsStatFrames);
-  ClearErrorBuffer();
-
-  mPixelBuffer = NULL;
-  
-  makeCurrent();
+  QGLPixelBuffer(QSize(w, h)),
+  //QGLWidget(NULL, w, h),
+  GlRendererBuffer(sceneGraph, viewcells, tree)
+{
+  MakeCurrent();
   InitGL();
-  doneCurrent();
-  
-}
+  DoneCurrent();
+}
+
+
 
 float
@@ -238 +98 @@
   //static int query = -1;
   //if (query == -1)
-//        glGenOcclusionQueriesNV(1, (unsigned int *)&query);
+  //      glGenOcclusionQueriesNV(1, (unsigned int *)&query);
 
   OcclusionQuery query;
@@ -247 +107 @@
         glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
         glEnable( GL_CULL_FACE );
+        glCullFace(GL_BACK);
         
         RenderScene();
@@ -254 +115 @@
         glDisable( GL_CULL_FACE );
 
-        
         query.BeginQuery();
         
@@ -271 +131 @@
         if (pixelCount > 0)
           return -1.0f; // backfacing polygon found -> not a valid viewspace sample
+
   } else
         glDisable( GL_CULL_FACE );
         
 
-  ViewCell *viewcell = NULL;
-  
-  PrVs prvs;
-  
-  mViewCellsManager->SetMaxFilterSize(0);
-  mViewCellsManager->GetPrVS(mViewPoint, prvs, mViewCellsManager->GetFilterWidth());
-  viewcell = prvs.mViewCell;
-  
-  //  ViewCell *viewcell = mViewCellsManager->GetViewCell(mViewPoint);
-  pvsSize = 0;
+  //  ViewCell *viewcell = NULL;
+  
+  //  PrVs prvs;
+  
+  //  mViewCellsManager->SetMaxFilterSize(0);
+  //  mViewCellsManager->GetPrVS(mViewPoint, prvs, mViewCellsManager->GetFilterWidth());
+  //  viewcell = prvs.mViewCell;
+  
+  ObjectPvs pvs;
+  ViewCell *viewcell = mViewCellsManager->GetViewCell(mViewPoint);
+        
   if (viewcell) {
+        mViewCellsManager->ApplyFilter2(viewcell,
+                                                                        false,
+                                                                        1.0f,
+                                                                        pvs);
+        
+        pvsSize = 0;
         SetupCamera();
         glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
         glColorMask(GL_FALSE, GL_TRUE, GL_FALSE, GL_FALSE);
         
-        // Render PVS
-        ObjectPvsIterator it = viewcell->GetPvs().GetIterator();
-
-        pvsSize = viewcell->GetPvs().GetSize();
-        
+          
+        //      // Render PVS
+        ObjectPvsIterator it = pvs.GetIterator();
+        
+        pvsSize = pvs.GetSize();
+        Intersectable::NewMail();
         for (; it.HasMoreEntries(); ) {
           ObjectPvsEntry entry = it.Next();
@@ -301 +169 @@
           RenderIntersectable(object);
         }
-
+        
         //      glColorMask(GL_TRUE, GL_FALSE, GL_FALSE, GL_FALSE);
         glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
+        
+        
         mUseFalseColors = true;
-
+        
         query.BeginQuery();
-
+        
         SetupCamera();
-
+        
         RenderScene();
         
         query.EndQuery();
         
-
+        
         unsigned int pixelCount;
         // reenable other state
@@ -321 +191 @@
         
         pErrorPixels = ((float)pixelCount)/(GetWidth()*GetHeight());
-        if (mSnapErrorFrames && pErrorPixels > 0.01) {
-          
-          char filename[256];
-          sprintf(filename, "error-frame-%04d-%0.5f.png", mFrame, pErrorPixels);
-          QImage im = toImage();
-          string str = mSnapPrefix + filename;
-          QString qstr(str.c_str());
-
-          im.save(qstr, "PNG");
-          if (1) { //0 && mFrame == 1543) {
-                int x,y;
-                int lastIndex = -1;
-                for (y=0; y < im.height(); y++)
-                  for (x=0; x < im.width(); x++) {
-                        QRgb p = im.pixel(x,y);
-                        int index = qRed(p) + (qGreen(p)<<8) + (qBlue(p)<<16);
-                        if (qGreen(p) != 255 && index!=0) {
-                          if (index != lastIndex) {
-                                //                              Debug<<"ei="<<index<<" ";
-                                lastIndex = index;
-                          }
+  } else
+        pErrorPixels = 0.0f;
+  
+  if (mSnapErrorFrames && pErrorPixels > 0.001f) {
+        
+        char filename[256];
+        sprintf(filename, "error-frame-%04d-%0.5f.png", mFrame, pErrorPixels);
+        QImage im = toImage();
+        string str = mSnapPrefix + filename;
+        QString qstr(str.c_str());
+        
+        im.save(qstr, "PNG");
+        if (1) { //0 && mFrame == 1543) {
+          int x,y;
+          int lastIndex = -1;
+          for (y=0; y < im.height(); y++)
+                for (x=0; x < im.width(); x++) {
+                  QRgb p = im.pixel(x,y);
+                  int index = qRed(p) + (qGreen(p)<<8) + (qBlue(p)<<16);
+                  if (qGreen(p) != 255 && index!=0) {
+                        if (index != lastIndex) {
+                          //                            Debug<<"ei="<<index<<" ";
+                          lastIndex = index;
                         }
                   }
-          }
-
-
-          mUseFalseColors = false;
-          glPushAttrib(GL_CURRENT_BIT);
-          glColor3f(0,1,0);
-          glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
-          SetupCamera();
-          glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-          
-          // Render PVS
-          ObjectPvsIterator it = viewcell->GetPvs().GetIterator();
-          for (; it.HasMoreEntries(); ) {
-                ObjectPvsEntry entry = it.Next();
-                Intersectable *object = entry.mObject;
-                RenderIntersectable(object);
-          }
-
-          im = toImage();
-          sprintf(filename, "error-frame-%04d-%0.5f-pvs.png", mFrame, pErrorPixels);
-          str = mSnapPrefix + filename;
-          qstr = str.c_str();
-          im.save(qstr, "PNG");
-          glPopAttrib();
-        }
+                }
+        }
+        
+        
+        mUseFalseColors = false;
+        glPushAttrib(GL_CURRENT_BIT);
+        glColor3f(0,1,0);
         glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
-  }
-
-  if (viewcell && mViewCellsManager->GetMaxFilterSize() > 0)
-        mViewCellsManager->DeleteLocalMergeTree(viewcell);
+        SetupCamera();
+        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+        
+        // Render PVS
+        Intersectable::NewMail();
+
+        ObjectPvsIterator it = pvs.GetIterator();
+        for (; it.HasMoreEntries(); ) {
+          ObjectPvsEntry entry = it.Next();
+          Intersectable *object = entry.mObject;
+          RenderIntersectable(object);
+        }
+        
+        im = toImage();
+        sprintf(filename, "error-frame-%04d-%0.5f-pvs.png", mFrame, pErrorPixels);
+        str = mSnapPrefix + filename;
+        qstr = str.c_str();
+        im.save(qstr, "PNG");
+        glPopAttrib();
+  }
+  
+  glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
   
   return pErrorPixels;
 }
 
-
-void
-QtGlRendererBuffer::ClearErrorBuffer()
-{
-  for (int i=0; i < mPvsStatFrames; i++) {
-        mPvsErrorBuffer[i].mError = 1.0f;
-  }
-}
-
-
-void
-QtGlRendererBuffer::EvalPvsStat()
-{
-  mPvsStat.Reset();
-  halton.Reset();
-
-  makeCurrent();
-
-  SetupProjection(GetWidth(), GetHeight());
-  
-  for (int i=0; i < mPvsStatFrames; i++) {
-        float err;
-        // set frame id for saving the error buffer
-        mFrame = i;
-        RandomViewPoint();
-
-        // atlanta problematic frames: 325 525 691 1543
-#if 0
-        if (mFrame != 325 &&
-                mFrame != 525 &&
-                mFrame != 691 &&
-                mFrame != 1543)
-          mPvsErrorBuffer[i] = -1;
-        else {
-          Debug<<"frame ="<<mFrame<<" vp="<<mViewPoint<<" vd="<<mViewDirection<<endl;
-        }
-#endif
-        if (mPvsErrorBuffer[i].mError > 0.0f) {
-          int pvsSize;
-
-
-          float error = GetPixelError(pvsSize);
-          mPvsErrorBuffer[i].mError = error;
-          mPvsErrorBuffer[i].mPvsSize = pvsSize;
-
-          emit UpdatePvsErrorItem(i,
-                                                          mPvsErrorBuffer[i]);
-          
-          cout<<"("<<i<<","<<mPvsErrorBuffer[i].mError<<")";
-          //      swapBuffers();
-        }
-        
-        err = mPvsErrorBuffer[i].mError;
-        
-        if (err >= 0.0f) {
-          if (err > mPvsStat.maxError)
-                mPvsStat.maxError = err;
-          mPvsStat.sumError += err;
-          mPvsStat.sumPvsSize += mPvsErrorBuffer[i].mPvsSize;
-          
-          if (err == 0.0f)
-                mPvsStat.errorFreeFrames++;
-          mPvsStat.frames++;
-        }
-  }
-
-  glFinish();
-  doneCurrent();
-
-  cout<<endl<<flush;
-  //  mRenderingFinished.wakeAll();
-}
-
-
-
-
-
-
-
-void QtGlRendererBuffer::SampleBeamContributions(Intersectable *sourceObject,
-                                                                                           Beam &beam,
-                                                                                           const int desiredSamples,
-                                                                                           BeamSampleStatistics &stat)
-{
-        // TODO: should be moved out of here (not to be done every time)
-        // only back faces are interesting for the depth pass
-        glShadeModel(GL_FLAT);
-        glDisable(GL_LIGHTING);
-
-        // needed to kill the fragments for the front buffer
-        glEnable(GL_ALPHA_TEST);
-        glAlphaFunc(GL_GREATER, 0);
-
-        // assumes that the beam is constructed and contains kd-tree nodes
-        // and viewcells which it intersects
-  
-  
-        // Get the number of viewpoints to be sampled
-        // Now it is a sqrt but in general a wiser decision could be made.
-        // The less viewpoints the better for rendering performance, since less passes
-        // over the beam is needed.
-        // The viewpoints could actually be generated outside of the bounding box which
-        // would distribute the 'efective viewpoints' of the object surface and thus
-        // with a few viewpoints better sample the viewpoint space....
-
-        //TODO: comment in
-        //int viewPointSamples = sqrt((float)desiredSamples);
-        int viewPointSamples = max(desiredSamples / (GetWidth() * GetHeight()), 1);
-        
-        // the number of direction samples per pass is given by the number of viewpoints
-        int directionalSamples = desiredSamples / viewPointSamples;
-        
-        Debug << "directional samples: " << directionalSamples << endl;
-        for (int i = 0; i < viewPointSamples; ++ i) 
-        {
-                Vector3 viewPoint = beam.mBox.GetRandomPoint();
-                
-                // perhaps the viewpoint should be shifted back a little bit so that it always lies
-                // inside the source object
-                // 'ideally' the viewpoints would be distributed on the soureObject surface, but this
-        // would require more complicated sampling (perhaps hierarchical rejection sampling of
-                // the object surface is an option here - only the mesh faces which are inside the box
-                // are considered as candidates) 
-                
-                SampleViewpointContributions(sourceObject,
-                                                                         viewPoint,
-                                                                         beam,
-                                                                         directionalSamples,
-                                                                         stat);
-        }
-
-
-        // note:
-        // this routine would be called only if the number of desired samples is sufficiently
-        // large - for other rss tree cells the cpu based sampling is perhaps more efficient
-        // distributing the work between cpu and gpu would also allow us to place more sophisticated
-        // sample distributions (silhouette ones) using the cpu and the jittered once on the GPU
-        // in order that thios scheme is working well the gpu render buffer should run in a separate
-        // thread than the cpu sampler, which would not be such a big problem....
-
-        // disable alpha test again
-        glDisable(GL_ALPHA_TEST);
-}
-
-
-
-void QtGlRendererBuffer::SampleViewpointContributions(Intersectable *sourceObject,
-                                                                                                        const Vector3 viewPoint,
-                                                                                                        Beam &beam,
-                                                                                                        const int samples,
-                                                    BeamSampleStatistics &stat)
-{
-    // 1. setup the view port to match the desired samples
-        glViewport(0, 0, samples, samples);
-
-        // 2. setup the projection matrix and view matrix to match the viewpoint + beam.mDirBox
-        SetupProjectionForViewPoint(viewPoint, beam, sourceObject);
-
-
-        // 3. reset z-buffer to 0 and render the source object for the beam
-        //    with glCullFace(Enabled) and glFrontFace(GL_CW)
-        //    save result to the front depth map
-        //    the front depth map holds ray origins
-
-
-        // front depth buffer must be initialised to 0
-        float clearDepth;
-        
-        glGetFloatv(GL_DEPTH_CLEAR_VALUE, &clearDepth);
-        glClearDepth(0.0f);
-        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
-
-
-        //glFrontFace(GL_CW);
-        glEnable(GL_CULL_FACE);
-        glCullFace(GL_FRONT);
-        glColorMask(0, 0, 0, 0);
-        
-
-        // stencil is increased where the source object is located
-        glEnable(GL_STENCIL_TEST);      
-        glStencilFunc(GL_ALWAYS, 0x1, 0x1);
-        glStencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE);
-
-
-#if 0
-        static int glSourceObjList = -1;         
-        if (glSourceObjList != -1) 
-        {
-                glSourceObjList = glGenLists(1);
-                glNewList(glSourceObjList, GL_COMPILE);
-
-                RenderIntersectable(sourceObject);
-        
-                glEndList();
-        }
-        glCallList(glSourceObjList);
-
-#else
-        RenderIntersectable(sourceObject);
-
-#endif  
-
-         // copy contents of the front depth buffer into depth texture
-        glBindTexture(GL_TEXTURE_2D, frontDepthMap);    
-        glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, depthMapSize, depthMapSize);
-
-
-        // reset clear function
-        glClearDepth(clearDepth);
-
-        
-        
-        // 4. set up the termination depth buffer (= standard depth buffer)
-        //    only rays which have non-zero entry in the origin buffer are valid since
-        //    they realy start on the object surface (this is tagged by setting a
-        //    stencil buffer bit at step 3).
-        
-        glStencilFunc(GL_EQUAL, 0x1, 0x1);
-        glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
-
-        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-        glDepthMask(1);
-
-        glEnable(GL_DEPTH_TEST);
-                
-        glEnable(GL_CULL_FACE);
-        glCullFace(GL_BACK);
-
-        // setup front depth buffer
-        glEnable(GL_TEXTURE_2D);
-        
-#if USE_CG
-        // bind pixel shader implementing the front depth buffer functionality
-        cgGLBindProgram(sCgFragmentProgram);
-        cgGLEnableProfile(sCgFragmentProfile);
-#endif
-
-        // 5. render all objects inside the beam 
-        //    we can use id based false color to read them back for gaining the pvs
-
-        glColorMask(1, 1, 1, 1);
-
-        
-        // if objects not stored in beam => extract objects
-        if (beam.mFlags & !Beam::STORE_OBJECTS)
-        {
-                vector<KdNode *>::const_iterator it, it_end = beam.mKdNodes.end();
-
-                Intersectable::NewMail();
-                for (it = beam.mKdNodes.begin(); it != it_end; ++ it)
-                {
-                        mKdTree->CollectObjects(*it, beam.mObjects);
-                }
-        }
-
-
-        //    (objects can be compiled to a gl list now so that subsequent rendering for
-        //    this beam is fast - the same hold for step 3)
-        //    Afterwards we have two depth buffers defining the ray origin and termination
-        
-
-#if 0
-        static int glObjList = -1; 
-        if (glObjList != -1) 
-        {
-                glObjList = glGenLists(1);
-                glNewList(glObjList, GL_COMPILE);
-        
-                ObjectContainer::const_iterator it, it_end = beam.mObjects.end();
-                for (it = beam.mObjects.begin(); it != it_end; ++ it)
-                {
-                        // render all objects except the source object
-                        if (*it != sourceObject)
-                                RenderIntersectable(*it);
-                }
-                
-                glEndList();
-        }
-
-        glCallList(glObjList);
-#else
-        ObjectContainer::const_iterator it, it_end = beam.mObjects.end();
-        for (it = beam.mObjects.begin(); it != it_end; ++ it)
-        {       
-                // render all objects except the source object
-                if (*it != sourceObject)
-                        RenderIntersectable(*it);
-        }
-#endif
-        
-   
-
-        // 6. Use occlusion queries for all viewcell meshes associated with the beam ->
-        //     a fragment passes if the corresponding stencil fragment is set and its depth is
-        //     between origin and termination buffer
-
-        // create new queries if necessary
-        OcclusionQuery::GenQueries(mOcclusionQueries, (int)beam.mViewCells.size());
-
-        // check whether any backfacing polygon would pass the depth test?
-        // matt: should check both back /front facing because of dual depth buffer
-        // and danger of cutting the near plane with front facing polys.
-        
-        glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
-        glDepthMask(GL_FALSE);
-        glDisable(GL_CULL_FACE);
-
-  
-        ViewCellContainer::const_iterator vit, vit_end = beam.mViewCells.end();
-
-        int queryIdx = 0;
-
-        for (vit = beam.mViewCells.begin(); vit != vit_end; ++ vit)
-        {
-                mOcclusionQueries[queryIdx ++]->BeginQuery();
-
-                RenderIntersectable(*vit);
-                
-                mOcclusionQueries[queryIdx]->EndQuery();
-
-                ++ queryIdx;
-        }
-
-
-
-        // at this point, if possible, go and do some other computation
-
-
-        
-        // 7. The number of visible pixels is the number of sample rays which see the source
-        //    object from the corresponding viewcell -> remember these values for later update
-        //   of the viewcell pvs - or update immediately?
-
-        queryIdx = 0;
-
-        for (vit = beam.mViewCells.begin(); vit != vit_end; ++ vit)
-        {
-                // fetch queries
-                unsigned int pixelCount = mOcclusionQueries[queryIdx ++]->GetQueryResult();
-
-                if (pixelCount)
-                        Debug << "view cell " << (*vit)->GetId() << " visible pixels: " << pixelCount << endl;
-        }
-        
-
-        // 8. Copmpute rendering statistics
-        // In general it is not neccessary to remember to extract all the rays cast. I hope it
-        // would be sufficient to gain only the intergral statistics about the new contributions
-        // and so the rss tree would actually store no new rays (only the initial ones)
-        // the subdivision of the tree would only be driven by the statistics (the glrender could
-        // evaluate the contribution entropy for example)
-        // However might be an option to extract/store only those the rays which made a contribution
-        // (new viewcell has been discovered) or relative contribution greater than a threshold ... 
-
-        ObjectContainer pvsObj;
-        stat.pvsSize = ComputePvs(beam.mObjects, pvsObj);
-        
-        // to gain ray source and termination
-        // copy contents of ray termination buffer into depth texture
-        // and compare with ray source buffer
-#if 0
-        VssRayContainer rays;
-
-        glBindTexture(GL_TEXTURE_2D, backDepthMap);     
-        glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, depthMapSize, depthMapSize);
-
-        ComputeRays(Intersectable *sourceObj, rays);
-
-#endif
-
-
-
-        //-- cleanup
-
-
-        // reset gl state
-        glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
-        glDepthMask(GL_TRUE);
-        glEnable(GL_CULL_FACE);
-        glDisable(GL_STENCIL_TEST);
-#if USE_CG
-        cgGLDisableProfile(sCgFragmentProfile);
-#endif
-        glDisable(GL_TEXTURE_2D);
-
-        // remove objects from beam
-        if (beam.mFlags & !Beam::STORE_OBJECTS)
-                beam.mObjects.clear();
-}
-
-
-void QtGlRendererBuffer::SetupProjectionForViewPoint(const Vector3 &viewPoint, 
-                                                                                                   const Beam &beam, 
-                                                                                                   Intersectable *sourceObject)
-{
-        float left, right, bottom, top, znear, zfar;
-
-        beam.ComputePerspectiveFrustum(left, right, bottom, top, znear, zfar,
-                                                                   mSceneGraph->GetBox());
-
-        //Debug << left << " " << right << " " << bottom << " " << top << " " << znear << " " << zfar << endl;
-        glMatrixMode(GL_PROJECTION);
-        glLoadIdentity();
-        glFrustum(left, right, bottom, top, znear, zfar);
-        //glFrustum(-1, 1, -1, 1, 1, 20000);
-
-    const Vector3 center = viewPoint + beam.GetMainDirection() * (zfar - znear) * 0.3f;
-        const Vector3 up = 
-                Normalize(CrossProd(beam.mPlanes[0].mNormal, beam.mPlanes[4].mNormal));
-
-#ifdef GTP_DEBUG
-        Debug << "view point: " << viewPoint << endl;
-        Debug << "eye: " << center << endl;
-        Debug << "up: " << up << endl;
-#endif
-
-        glMatrixMode(GL_MODELVIEW);
-        glLoadIdentity();
-        gluLookAt(viewPoint.x, viewPoint.y, viewPoint.z, 
-                          center.x, center.y, center.z,                   
-                          up.x, up.y, up.z);
-}               
-
-  
-void QtGlRendererBuffer::InitGL()
-{
- makeCurrent(); 
- GlRenderer::InitGL();
-
-#if 1
-        // initialise dual depth buffer textures
-        glGenTextures(1, &frontDepthMap);
-        glBindTexture(GL_TEXTURE_2D, frontDepthMap);
-        
-        glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, depthMapSize, 
-                                 depthMapSize, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, NULL);
-
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
-
-        glGenTextures(1, &backDepthMap);
-        glBindTexture(GL_TEXTURE_2D, backDepthMap);
-        
-        glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, depthMapSize, 
-                depthMapSize, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, NULL);
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
-
-#if USE_CG
-        // cg initialization
-        cgSetErrorCallback(handleCgError);
-        sCgContext = cgCreateContext();
-        
-        if (cgGLIsProfileSupported(CG_PROFILE_ARBFP1))
-                sCgFragmentProfile = CG_PROFILE_ARBFP1;
-        else 
-        {
-          // try FP30
-          if (cgGLIsProfileSupported(CG_PROFILE_FP30))
-            sCgFragmentProfile = CG_PROFILE_FP30;
-          else 
-          {
-                  Debug << "Neither arbfp1 or fp30 fragment profiles supported on this system" << endl;
-                  exit(1);
-          }
-  }
-
- sCgFragmentProgram = cgCreateProgramFromFile(sCgContext,
-                                                                                           CG_SOURCE, "../src/dual_depth.cg",
-                                                                                           sCgFragmentProfile,
-                                                                                           NULL, 
-                                                                                           NULL);
-
-  if (!cgIsProgramCompiled(sCgFragmentProgram))
-          cgCompileProgram(sCgFragmentProgram);
-
-  cgGLLoadProgram(sCgFragmentProgram);
-  cgGLBindProgram(sCgFragmentProgram);
-
-  Debug << "---- PROGRAM BEGIN ----\n" <<
-          cgGetProgramString(sCgFragmentProgram, CG_COMPILED_PROGRAM) << "---- PROGRAM END ----\n";
-
-#endif
-
-#endif
-  doneCurrent();
-}
-
-
-void QtGlRendererBuffer::ComputeRays(Intersectable *sourceObj, VssRayContainer &rays)
-{
-        for (int i = 0; i < depthMapSize * depthMapSize; ++ i)
-        {
-                //todo glGetTexImage()
-        }
-}
-
-
-
-int QtGlRendererBuffer::ComputePvs(ObjectContainer &objects, 
-                                                                   ObjectContainer &pvs) const
+int
+QtGlRendererBuffer::ComputePvs(ObjectContainer &objects, 
+                                                           ObjectContainer &pvs) const
 {
         int pvsSize = 0;
@@ -922 +291 @@
         return pvsSize;
 }
+
+///////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////
+
+
 
 
@@ -1702 +1078 @@
   if (mViewCellsManager) 
         mViewCellsManager->SetMaxFilterSize(number);
+  mPvsCache.Reset();
   updateGL();
 }
@@ -1709 +1086 @@
 {
   mSpatialFilterSize = 1e-3*number;
+  mPvsCache.Reset();
   updateGL();
 }

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

@@ -48 +48 @@
                 KdTree *tree);
 
-        ~QtGlRendererBuffer();
-
-        /** Evaluates render cost of a point sample.
-        @param sample the render cost sample to be evaluated
-        @param useOcclusionQueries if occlusion queries should be used or item buffer
-        @param threshold number of pixels / samples from where an object is considered visible.
-        */
-        void EvalRenderCostSample(RenderCostSample &sample,
-                const bool useOcclusionQueries,
-                const int threshold);
-
-        /** Evaluates render cost of a number of point samples. The point samples
-        are distributed uniformly over the defined view space.
-
-        @param numSamples the number of point samples taken
-        @param samples stores the taken point samples in a container
-        @param useOcclusionQueries if occlusion queries should be used or item buffer
-        @param threshold number of pixels / samples from where an object is considered visible.
-        */
-        void SampleRenderCost(const int numSamples, 
-                vector<RenderCostSample> &samples,
-                const bool useOcclusionQueries,
-                const int threshold = 0);
-
-
-  void
-  EvalPvsStat();
-
-  void
-  ClearErrorBuffer();
-  
+  ~QtGlRendererBuffer() {}
+
+  virtual void MakeCurrent();
+  virtual void DoneCurrent();
 
   virtual int GetWidth() const { return width(); }
   virtual int GetHeight() const { return height(); }
 
-
- 
-  void SampleBeamContributions(
-                                                           Intersectable *sourceObject,
-                                                           Beam &beam,
-                                                           const int samples,
-                                                           BeamSampleStatistics &stat
-                                                           );
-
-  void
-  SampleViewpointContributions(
-                                                           Intersectable *sourceObject,
-                                                           const Vector3 viewPoint,
-                                                           Beam &beam,
-                                                           const int desiredSamples,
-                                                           BeamSampleStatistics &stat
-                                                           );
-
-  void InitGL();
-
-  /** Computes rays from information gained with hw sampling-
-  */
-  void ComputeRays(Intersectable *sourceObj, VssRayContainer &rays);
-
-  int ComputePvs() const;
-
+  int ComputePvs() const { return 0; }
+  
   float
   GetPixelError(int &pvsSize);
-
+  
   int ComputePvs(ObjectContainer &objects, ObjectContainer &pvs) const;
      
-   
-private:
-        
-        void SetupProjectionForViewPoint(const Vector3 &viewPoint, 
-                                                                         const Beam &beam, 
-                                                                         Intersectable *sourceObject);
-
-
+  
+  
+  
 public:
   signals:
-        void UpdatePvsErrorItem(int i, GlRendererBuffer::PvsErrorEntry &);
+  void UpdatePvsErrorItem(int i, GlRendererBuffer::PvsErrorEntry &);
 };
 

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

@@ -15 +15 @@
 
 
-#define USE_RSS_TREE 1
 
 namespace GtpVisibilityPreprocessor {
@@ -38 +37 @@
   Environment::GetSingleton()->GetIntValue("RssPreprocessor.vssSamplesPerPass", mRssSamplesPerPass);
   Environment::GetSingleton()->GetBoolValue("RssPreprocessor.useImportanceSampling", mUseImportanceSampling);
+
+  Environment::GetSingleton()->GetBoolValue("RssPreprocessor.useRssTree",
+                                                                                        mUseRssTree);
 
   Environment::GetSingleton()->GetBoolValue("RssPreprocessor.Export.pvs", mExportPvs);
@@ -48 +50 @@
 
   Environment::GetSingleton()->GetBoolValue("RssPreprocessor.loadInitialSamples", mLoadInitialSamples);
+
   Environment::GetSingleton()->GetBoolValue("RssPreprocessor.storeInitialSamples", mStoreInitialSamples);
+
   Environment::GetSingleton()->GetBoolValue("RssPreprocessor.updateSubdivision", mUpdateSubdivision);
   
@@ -353 +357 @@
         //      renderer->mRenderingFinished.wait(&mutex);
         //      mutex.unlock();
-
+        
         renderer->EvalPvsStat();
+
         mStats <<
           "#AvgPvsRenderError\n" <<renderer->mPvsStat.GetAvgError()<<endl<<
@@ -364 +369 @@
 
 void
-NormalizeRatios(vector<SamplingStrategy *> distributions)
+NormalizeRatios(vector<SamplingStrategy *> &distributions)
 {
   int i;
@@ -397 +402 @@
         distributions[i]->mRatio/=sumRatios;
   
-
+  
+  cout<<"New ratios: ";
+  for (i=0 ; i < distributions.size(); i++)
+        cout<<distributions[i]->mRatio<<" ";
+  cout<<endl;
 }
 
 void
-NormalizeRatios(float ratios[4])
-{
-  int i;
-  float sumRatios;
-  sumRatios = ratios[0] + ratios[1] + ratios[2] + ratios[3];
-  if (sumRatios == 0.0f) {
-        ratios[0] = ratios[1] = ratios[2] = 1.0f;
-        sumRatios = 4.0f;
-  }
-  
-  for (i=0 ; i < 4; i++)
-        ratios[i]/=sumRatios;
-
-#define MIN_RATIO 0.1f
-
-#if USE_RSS_TREE
-  i = 0;
-#else
-  i = 1;
+EvaluateRatios(vector<SamplingStrategy *> &distributions)
+{
+  // now evaluate the ratios for the next pass
+#define TIME_WEIGHT 0.5f
+  for (int i=0; i < distributions.size(); i++) {
+        distributions[i]->mRatio = distributions[i]->mContribution/
+          (TIME_WEIGHT*distributions[i]->mTime +
+           (1 - TIME_WEIGHT)*distributions[i]->mRays);
+
+#if 1
+        distributions[i]->mRatio = sqr(distributions[i]->mRatio);
 #endif
-  
-  for (; i < 4; i++)
-        if (ratios[i] < MIN_RATIO)
-          ratios[i] = MIN_RATIO;
-
-  sumRatios = ratios[0] + ratios[1] + ratios[2] + ratios[3];
-  for (i=0 ; i < 4; i++)
-        ratios[i]/=sumRatios;
-  
-}
+  }
+}
+
+
 
 bool
@@ -443 +438 @@
   Randomize(0);
   
+  // use ray buffer to export ray animation
   const bool useRayBuffer = false;
   
@@ -468 +464 @@
   int rssSamples = 0;
 
-  mDistributions.push_back(new RssBasedDistribution(*this));
-  mDistributions.push_back(new SpatialBoxBasedDistribution(*this));
-  mDistributions.push_back(new DirectionBasedDistribution(*this));
-  mDistributions.push_back(new ReverseObjectBasedDistribution(*this));
+  if (mUseRssTree)
+        mDistributions.push_back(new RssBasedDistribution(*this));
+
+  //  mDistributions.push_back(new SpatialBoxBasedDistribution(*this));
+  //  mDistributions.push_back(new DirectionBasedDistribution(*this));
+  mDistributions.push_back(new ObjectDirectionBasedDistribution(*this));
+  //  mDistributions.push_back(new ReverseObjectBasedDistribution(*this));
+  mDistributions.push_back(new ObjectBasedDistribution(*this));
+  mDistributions.push_back(new ReverseViewSpaceBorderBasedDistribution(*this));
   
   if (mLoadInitialSamples) {
@@ -483 +484 @@
         
         if (mUseImportanceSampling) {
-          GenerateRays(mInitialSamples/3, SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION, rays);
-          //      GenerateRays(mInitialSamples/3, SamplingStrategy::OBJECT_BASED_DISTRIBUTION, rays);
-          GenerateRays(mInitialSamples/3, SamplingStrategy::DIRECTION_BASED_DISTRIBUTION, rays);
-          GenerateRays(mInitialSamples/3, SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION, rays);
-          //    GenerateRays(mInitialSamples/4, OBJECT_DIRECTION_BASED_DISTRIBUTION, rays);
-          
+          int count = 0;
+          int i;
+
+          // Generate initial samples
+          for (i=0; i < mDistributions.size(); i++)
+                if (mDistributions[i]->mType != SamplingStrategy::RSS_BASED_DISTRIBUTION)
+                  count++;
+          
+          for (i=0; i < mDistributions.size(); i++)
+                if (mDistributions[i]->mType != SamplingStrategy::RSS_BASED_DISTRIBUTION)
+                  GenerateRays(mInitialSamples/count,
+                                           mDistributions[i]->mType, rays);
 
         } else {
@@ -584 +591 @@
   if (mUseImportanceSampling) {
 
-#if USE_RSS_TREE        
-        mRssTree->Construct(mObjects, mVssRays);
-#endif
-        
-        mRssTree->stat.Print(mStats);
-        cout<<"RssTree root PVS size = "<<mRssTree->GetRootPvsSize()<<endl;
-        
-        if (mExportRssTree) {
-          ExportRssTree("rss-tree-100.x3d", mRssTree, Vector3(1,0,0));
-          ExportRssTree("rss-tree-001.x3d", mRssTree, Vector3(0,0,1));
-          ExportRssTree("rss-tree-101.x3d", mRssTree, Vector3(1,0,1));
-          ExportRssTree("rss-tree-101m.x3d", mRssTree, Vector3(-1,0,-1));
-          ExportRssTreeLeaves(mRssTree, 10);
-        }
-        
+        if (mUseRssTree) {
+          mRssTree->Construct(mObjects, mVssRays);
+        
+          mRssTree->stat.Print(mStats);
+          cout<<"RssTree root PVS size = "<<mRssTree->GetRootPvsSize()<<endl;
+          
+          if (mExportRssTree) {
+                ExportRssTree("rss-tree-100.x3d", mRssTree, Vector3(1,0,0));
+                ExportRssTree("rss-tree-001.x3d", mRssTree, Vector3(0,0,1));
+                ExportRssTree("rss-tree-101.x3d", mRssTree, Vector3(1,0,1));
+                ExportRssTree("rss-tree-101m.x3d", mRssTree, Vector3(-1,0,-1));
+                ExportRssTreeLeaves(mRssTree, 10);
+          }
+        }
+
         if (mExportPvs) {
           ExportPvs("rss-pvs-initial.x3d", mRssTree);
@@ -621 +628 @@
         if (mUseImportanceSampling) {
 
-#if USE_RSS_TREE        
-          static float ratios[] = {0.9f,0.05f,0.05f,0.05f};
-#else
-          static float ratios[] = {0.0f,0.05f,0.05f,0.05f};
-#endif
-          NormalizeRatios(ratios);
-                  
-          cout<<"New ratios: "<<ratios[0]<<" "<<ratios[1]<<" "<<ratios[2]<<" "<<ratios[3]<<endl;
-
-          //float ratios[] = {1.0f,0.0f,0.0f};
-          
-          int nrays[4];
-          float contributions[4];
-          float times[4];
+          NormalizeRatios(mDistributions);
           
           long t1;
 
-          t1 = GetTime();
-          
-          GenerateRays(int(mRssSamplesPerPass*ratios[0]),
-                                   SamplingStrategy::RSS_BASED_DISTRIBUTION,
-                                   rays);
-          
-          rays.NormalizePdf((float)rays.size());
-          
-          CastRays(rays, tmpVssRays, true);
-          castRays += (int)rays.size();
-#if ADD_RAYS_IN_PLACE 
-          contributions[0] = mViewCellsManager->ComputeSampleContributions(tmpVssRays, true, false);
-#else
-          contributions[0] = mViewCellsManager->ComputeSampleContributions(tmpVssRays, false, true);
-#endif
-          times[0] = TimeDiff(t1, GetTime());
-          nrays[0] = (int)rays.size();
-          
-          mStats<<"#RssRelContrib"<<endl<<contributions[0]/nrays[0]<<endl;
-          
-          vssRays.insert(vssRays.end(), tmpVssRays.begin(), tmpVssRays.end() );
-          rays.clear();
-          tmpVssRays.clear();
-          if (ratios[1]!=0.0f) {
+          for (int i=0; i < mDistributions.size(); i++) {
                 t1 = GetTime();
-                GenerateRays(int(mRssSamplesPerPass*ratios[1]), SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION, rays);
-                CastRays(rays, tmpVssRays, true);
-                castRays += (int)rays.size();
-#if ADD_RAYS_IN_PLACE 
-                contributions[1] = mViewCellsManager->ComputeSampleContributions(tmpVssRays, true, false);
-#else
-                contributions[1] = mViewCellsManager->ComputeSampleContributions(tmpVssRays, false, true);
-#endif
-          times[1] = TimeDiff(t1, GetTime());
-          nrays[1] = (int)rays.size();
-
-          mStats<<"#SpatialRelContrib"<<endl<<contributions[1]/nrays[1]<<endl;
-                
-                vssRays.insert(vssRays.end(), tmpVssRays.begin(), tmpVssRays.end() );
-                
                 rays.clear();
                 tmpVssRays.clear();
+                if (mDistributions[i]->mRatio != 0) {
+                  GenerateRays(int(mRssSamplesPerPass*mDistributions[i]->mRatio),
+                                           mDistributions[i]->mType,
+                                           rays);
+                  
+                  rays.NormalizePdf((float)rays.size());
+                  
+                  CastRays(rays, tmpVssRays, true);
+                  castRays += (int)rays.size();
+                  
+#if ADD_RAYS_IN_PLACE 
+                  mDistributions[i]->mContribution =
+                        mViewCellsManager->ComputeSampleContributions(tmpVssRays, true, false);
+#else
+                  mDistributions[i]->mContribution =
+                        mViewCellsManager->ComputeSampleContributions(tmpVssRays, false, true);
+#endif
+                }
+
+                mDistributions[i]->mTime = TimeDiff(t1, GetTime());
+                mDistributions[i]->mRays = (int)rays.size();
+                //              mStats<<"#RssRelContrib"<<endl<<contributions[0]/nrays[0]<<endl;
+                vssRays.insert(vssRays.end(), tmpVssRays.begin(), tmpVssRays.end() );
           }
-          
-          
-          if (ratios[2]!=0.0f) {
-                t1 = GetTime();
-                GenerateRays(int(mRssSamplesPerPass*ratios[2]), SamplingStrategy::DIRECTION_BASED_DISTRIBUTION, rays);
-                CastRays(rays, tmpVssRays, true);
-                castRays += (int)rays.size();
-#if ADD_RAYS_IN_PLACE 
-                contributions[2] = mViewCellsManager->ComputeSampleContributions(tmpVssRays, true, false);
-#else
-                contributions[2] = mViewCellsManager->ComputeSampleContributions(tmpVssRays, false, true);
-#endif
-                times[2] = TimeDiff(t1, GetTime());
-                nrays[2] = (int)rays.size();
-                
-                mStats<<"#DirectionalRelContrib"<<endl<<contributions[2]/nrays[2]<<endl;
-                
-                vssRays.insert(vssRays.end(), tmpVssRays.begin(), tmpVssRays.end() );
-                
-                rays.clear();
-                tmpVssRays.clear();
-          }
-          
-          if (ratios[3]!=0.0f) {
-                t1 = GetTime();
-                GenerateRays(int(mRssSamplesPerPass*ratios[3]),
-                                         SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION, rays);
-                CastRays(rays, tmpVssRays, true);
-                castRays += (int)rays.size();
-#if ADD_RAYS_IN_PLACE 
-                contributions[3] = mViewCellsManager->ComputeSampleContributions(tmpVssRays, true, false);
-#else
-                contributions[3] = mViewCellsManager->ComputeSampleContributions(tmpVssRays, false, true);
-#endif
-                times[3] = TimeDiff(t1, GetTime());
-                nrays[3] = (int)rays.size();
-                
-                mStats<<"#DirectionalRelContrib"<<endl<<contributions[3]/nrays[3]<<endl;
-                
-                vssRays.insert(vssRays.end(), tmpVssRays.begin(), tmpVssRays.end() );
-                
-                rays.clear();
-                tmpVssRays.clear();
-          }
-
-          
-          // now evaluate the ratios for the next pass
-#define TIME_WEIGHT 0.5f
-
-#if 1
-          ratios[0] = sqr(contributions[0]/(TIME_WEIGHT*times[0] + (1 - TIME_WEIGHT)*nrays[0]));
-          ratios[1] = sqr(contributions[1]/(TIME_WEIGHT*times[1] + (1 - TIME_WEIGHT)*nrays[1]));
-          ratios[2] = sqr(contributions[2]/(TIME_WEIGHT*times[2] + (1 - TIME_WEIGHT)*nrays[2]));
-          ratios[3] = sqr(contributions[3]/(TIME_WEIGHT*times[3] + (1 - TIME_WEIGHT)*nrays[3]));
-#else
-          ratios[0] = contributions[0]/(TIME_WEIGHT*times[0] + (1 - TIME_WEIGHT)*nrays[0]);
-          ratios[1] = contributions[1]/(TIME_WEIGHT*times[1] + (1 - TIME_WEIGHT)*nrays[1]);
-          ratios[2] = contributions[2]/(TIME_WEIGHT*times[2] + (1 - TIME_WEIGHT)*nrays[2]);
-          ratios[3] = contributions[3]/(TIME_WEIGHT*times[3] + (1 - TIME_WEIGHT)*nrays[3]);
-          
-#endif    
-
-#if !USE_RSS_TREE
-          ratios[0] = 0;
-#endif
+
+          EvaluateRatios(mDistributions);
           
           // add contributions of all rays at once...
@@ -803 +719 @@
         }
 
-        if (0 && mPass > 0) {
-                char buf[100];
+
+        if (renderer && mPass > 0) {
+          char buf[100];
           if (mUseImportanceSampling)
-          {
-                sprintf(buf, "snap/i-%02d-", mPass);
-
-                renderer->SetSnapPrefix(buf);
-          }
+                {
+                  sprintf(buf, "snap/i-%02d-", mPass);
+                  
+                  renderer->SetSnapPrefix(buf);
+                }
           else
-          {
-                sprintf(buf, "snap/r-%02d-", mPass);
-
-                renderer->SetSnapPrefix(buf);
-          }
-
+                {
+                  sprintf(buf, "snap/r-%02d-", mPass);
+                  
+                  renderer->SetSnapPrefix(buf);
+                }
+          
           renderer->SetSnapErrorFrames(true);
         }
-
+        
         ComputeRenderError();
         
@@ -845 +762 @@
           sprintf(filename, "rss-crays-%04d.x3d", rssPass);
           ExportRays(filename, contributingRays, mExportNumRays);
-          
         }
 
@@ -853 +769 @@
         // do not add those rays which have too low or no contribution....
 
-#if USE_RSS_TREE        
-        if (mUseImportanceSampling) {
+        
+        if (mUseRssTree && mUseImportanceSampling) {
           Debug<<"Adding rays...\n"<<flush;
           mRssTree->AddRays(vssRays);
@@ -869 +785 @@
           }
         }
-#endif
         
         if (mExportPvs) {
@@ -878 +793 @@
         
         
-        if (!mUseImportanceSampling)
+        if (!mUseImportanceSampling || !mUseRssTree)
           CLEAR_CONTAINER(vssRays);
         // otherwise the rays get deleted by the rss tree update according to RssTree.maxRays ....
-
+        
         if (totalSamples >= mRssSamples + mInitialSamples)
           break;
@@ -889 +804 @@
         mPass++;
         mRssTree->SetPass(mPass);
-
-        
   }
   
   if (mUseViewcells) {
 
-        if(0)
-          {
-                VssRayContainer selectedRays;
-                int desired = mViewCellsManager->GetVisualizationSamples();
-                
-                mVssRays.SelectRays(desired, selectedRays);
-                
-                mViewCellsManager->Visualize(mObjects, selectedRays);
+        if(0) {
+          VssRayContainer selectedRays;
+          int desired = mViewCellsManager->GetVisualizationSamples();
+          
+          mVssRays.SelectRays(desired, selectedRays);
+          
+          mViewCellsManager->Visualize(mObjects, selectedRays);
           }
         
         // view cells after sampling
         mViewCellsManager->PrintStatistics(Debug);
-
+        
         EvalViewCellHistogram();
-
+        
         //-- render simulation after merge
         cout << "\nevaluating bsp view cells render time after sampling ... ";
@@ -920 +832 @@
         cout << ss << endl;
         Debug << ss << endl;
-        
   }
 

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

@@ -27 +27 @@
   int mRssSamples;
   bool mUseImportanceSampling;
+  bool mUseRssTree;
 
   bool mExportPvs;

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

@@ -2179 +2179 @@
   int startIndex = (int)rays.size();
 
-  Debug<<"B"<<flush;
+  //  Debug<<"B"<<flush;
 
   AxisAlignedBox3 box = GetBBox(leaf);
@@ -2192 +2192 @@
   }
 
-  Debug<<"R"<<flush;
+  //  Debug<<"R"<<flush;
   
   for (int i=0; i < numberOfRays; i++) {
@@ -2229 +2229 @@
         origin = box.GetPoint(pVector);
         dirVector = dirBox.GetPoint(dVector);
-
+        
         direction = Vector3(sin(dirVector.x), sin(dirVector.y), cos(dirVector.x));
-
         
         
@@ -2253 +2252 @@
 #if 0
         static int counter = 0;
-        Debug<<counter++<<flush;
+        //      Debug<<counter++<<flush;
 
         if (counter > 10374968) {
@@ -2268 +2267 @@
   }
 
-  Debug<<"D"<<flush;
+  //  Debug<<"D"<<flush;
   
   float density = 1.0f;
@@ -2692 +2691 @@
   
   // always generate at leat n ray per leaf
-  int fixedPerLeaf = 0;
+  int fixedPerLeaf = 1;
   // int fixedPerLeaf = 0;
   int fixed = fixedPerLeaf*(int)leaves.size();
-  int iGenerated = numberOfRays;
+
+  // check if the number of fixed is not too big
+
+  if (fixed >= numberOfRays/2) {
+        fixedPerLeaf = 0;
+        fixed = 0;
+  }
+  
+  int iGenerated = numberOfRays - fixed;
   float ratioPerLeaf = iGenerated /(avgContrib*numberOfLeaves);
-
+  
   k = 0;
 
@@ -2749 +2756 @@
 }
 
-float weightAbsContributions = 0.0f;
+float weightAbsContributions = ABS_CONTRIBUTION_WEIGHT;
 // if small very high importance of the last sample
 // if 1.0f then weighs = 1 1/2 1/3 1/4
 float passSampleWeightDecay = 1.0f;
 //float passSampleWeightDecay = 0.0001f;
-
 
 float

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

@@ -11 +11 @@
 
 SamplingStrategy::SamplingStrategy(const Preprocessor &preprocessor): 
-mPreprocessor(preprocessor)
+  mPreprocessor(preprocessor), mRatio(1.0f)
 {
 }

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

@@ -26 +26 @@
 
 
-#define ABS_CONTRIBUTION_WEIGHT 1.0f
 
 // warning: Should not count origin object for sampling 
@@ -33 +32 @@
 
 // $$JB HACK
-#define USE_KD_PVS 0
+#define USE_KD_PVS 1
 #define KD_PVS_AREA (1e-5f)
 
@@ -1826 +1825 @@
                 
                 stat.avgPvs += pvsCost;
-                
-                const bool evaluateFilter = true;
+
+                bool evaluateFilter;
+                Environment::GetSingleton()->GetBoolValue("Preprocessor.evaluateFilter", evaluateFilter);
+                
                 
                 if (evaluateFilter) {
                   ObjectPvs filteredPvs = viewcell->GetPvs();
-                  PvsFilterStatistics fstat = ApplyFilter2(viewcell, false, 1.0f, filteredPvs);
+                  PvsFilterStatistics fstat = ApplyFilter2(viewcell, false,
+                                                                                                   1.0f, filteredPvs);
                   
                   float filteredCost = filteredPvs.EvalPvsCost();
@@ -2032 +2034 @@
         ViewCell::NewMail();
 
+        //      if (ray.mPdf!=1.0f)
+        //        cout<<ray.mPdf<<" ";
+        
+        
         // traverse the view space subdivision
         CastLineSegment(origin, termination, viewcells);
@@ -5852 +5858 @@
         //Ray hray(ray);
 
+        //      if (ray.mPdf!=1.0f)
+        //        cout<<ray.mPdf<<" ";
+
         float tmin = 0, tmax = 1.0;
 
+        
         if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
                 return 0;
@@ -5867 +5877 @@
         if (storeViewCells)
         {       
-                // copy viewcells memory efficiently
-                ray.mViewCells.reserve(viewcells.size());
-                ray.mViewCells = viewcells;
+          // copy viewcells memory efficiently
+          ray.mViewCells.reserve(viewcells.size());
+          ray.mViewCells = viewcells;
         }
 
@@ -5877 +5887 @@
         Intersectable *originObj = GetIntersectable(ray, false);
           
-        for (; it != viewcells.end(); ++ it) 
-        {
-                ViewCell *viewcell = *it;
-
-                if (viewcell->GetValid())
+        for (; it != viewcells.end(); ++ it) {
+          ViewCell *viewcell = *it;
+          
+          if (viewcell->GetValid())
                 {       // if ray not outside of view space
-                        float contribution;
-
-                        if (terminationObj) 
+                  float contribution;
+                  
+                  if (terminationObj) 
                         {
-                                // todo: maybe not correct for kd node pvs
-                                if (viewcell->GetPvs().GetSampleContribution(
-                                                terminationObj, ray.mPdf, contribution))
+                          // todo: maybe not correct for kd node pvs
+                          if (viewcell->GetPvs().GetSampleContribution(
+                                                                                                                   terminationObj, ray.mPdf, contribution))
                                 {
-                                        ++ ray.mPvsContribution;
+                                  ++ ray.mPvsContribution;
                                 }
-
-                                ray.mRelativePvsContribution += contribution;
+                          
+                          ray.mRelativePvsContribution += contribution;
                         }
                         
-                        ////////////////
-                        //-- for directional sampling it is important to count 
-                        //-- only contributions made in one direction!
-                        //-- the other contributions of this sample will be counted for the opposite ray!
-
+                  ////////////////
+                  //-- for directional sampling it is important to count 
+                  //-- only contributions made in one direction!
+                  //-- the other contributions of this sample will be counted for the opposite ray!
+                  
 #if SAMPLE_ORIGIN_OBJECTS
-
-                        if (originObj && 
-                                viewcell->GetPvs().GetSampleContribution(originObj,
-                                                                                                                 ray.mPdf,
-                                                                                                                 contribution))
-                          {
-                                ++ ray.mPvsContribution;
-                                ray.mRelativePvsContribution += contribution;
-                          }
+                  
+                  if (originObj && 
+                          viewcell->GetPvs().GetSampleContribution(originObj,
+                                                                                                           ray.mPdf,
+                                                                                                           contribution))
+                        {
+                          ++ ray.mPvsContribution;
+                          ray.mRelativePvsContribution += contribution;
+                        }
 #endif
                 }
         }
-
+        
         if (!addRays)
         {

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

@@ -14 +14 @@
 class KdNode;
 
+#define ABS_CONTRIBUTION_WEIGHT 0.8f
 
 class VssRay {

GTP/trunk/Lib/Vis/Preprocessing/src/default.env

@@ -7 +7 @@
 
 #filename ../data/Arena/arena-low-lods.obj
-# filename ../data/Arena/arena-high-lods.obj
+ filename ../data/Arena/arena-high-lods.obj
 # filename ../data/City4M/City4M.obj
 # filename ../data/CityModel/CityModel.obj
@@ -55 +55 @@
         quitOnFinish true
         computeVisibility true
+
+        evaluateFilter false
+
         applyVisibilityFilter false
         applyVisibilitySpatialFilter false
@@ -89 +92 @@
         initialSamples 3000000
         vssSamples 50000000
-#       vssSamples 1000000
         vssSamplesPerPass 5000000
         useImportanceSampling true
@@ -107 +109 @@
         loadInitialSamples false
         storeInitialSamples false
+
+        useRssTree false
 }
 
@@ -158 +162 @@
                 minCost 1
                 maxDepth 30
-                maxCostRatio 0.95
+                maxCostRatio 0.98
                 ct_div_ci 0.5
-                maxNodes 200000
+                maxNodes 500000
 #500000 
         }
@@ -271 +275 @@
 #       filename ../data/soda/soda5-viewcells.xml
 #       filename ../scripts/viewcells_atlanta.xml
-#       filename ../data/soda/soda-viewcells-5000.xml
+#       filename ../data/soda/soda-viewcells.xml.gz
 #       filename ../data/test1/test-viewcells.xml
 

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

@@ -313 +313 @@
                 }
 
-                qApp->exec();   
+                int frames;
+                Environment::GetSingleton()->GetIntValue("Preprocessor.pvsRenderErrorSamples", frames);
+                if (frames) {
+                  // NOTE: render texture should be power of 2 and square
+                  // renderer must be initialised
+                  // $$matt
+                  preprocessor->renderer = 
+                        new QtGlRendererBuffer(512, 512,
+                                                                   preprocessor->mSceneGraph,
+                                                                   preprocessor->mViewCellsManager,
+                                                                   preprocessor->mKdTree);
+                  //            preprocessor->Getrenderer->makeCurrent();
+                }
+                qApp->exec();
 #endif
           }
-        
+
         if (!guiSupported) {
           preprocessor->mUseGlRenderer = false;

GTP/trunk/Lib/Vis/Preprocessing/src/run_test2

@@ -2 +2 @@
 
 #COMMAND="./release/preprocessor.exe -preprocessor_quit_on_finish+"
-COMMAND="../scripts/preprocessor.sh -preprocessor_quit_on_finish+ -preprocessor_use_gl_renderer-"
+COMMAND="../scripts/preprocessor.sh -preprocessor_quit_on_finish+ -preprocessor_use_gl_renderer- -preprocessor_evaluate_filter+"
 
 #SCENE="../data/vienna/vienna-buildings.x3d;../data/vienna/vienna-roofs.x3d;../data/vienna/vienna-roads.x3d"
@@ -29 +29 @@
 VIEWCELLS=../data/vienna/vienna_cropped-gradient-viewcells.xml.gz
 
-PREFIX=../work/plots/osp-rss-1e5
+PREFIX=../work/plots/osp-rss-1e5-n
 
 #SCENE=../data/atlanta/atlanta2.x3d
@@ -35 +35 @@
 
 
-$COMMAND -preprocessor=sampling -scene_filename=$SCENE -view_cells_filename=$VIEWCELLS \
--view_cells_filter_max_size=1 -preprocessor_stats=$PREFIX-r-reference.log \
--preprocessor_histogram_file=$PREFIX-r-reference.hlog
+# $COMMAND -preprocessor=sampling -scene_filename=$SCENE -view_cells_filename=$VIEWCELLS \
+# -view_cells_filter_max_size=1 -preprocessor_stats=$PREFIX-r-reference.log \
+# -preprocessor_histogram_file=$PREFIX-r-reference.hlog
 
 
@@ -47 +47 @@
 
 
-#######
-#######
-$COMMAND -scene_filename=$SCENE -view_cells_filename=$VIEWCELLS \
--rss_use_importance- -rss_object_based_sampling- -rss_directional_sampling+ \
--view_cells_filter_max_size=1 -preprocessor_stats=$PREFIX-r-directional-based-b3.log \
--preprocessor_histogram_file=$PREFIX-r-directional-based-b3.hlog
+# #######
+# #######
+# $COMMAND -scene_filename=$SCENE -view_cells_filename=$VIEWCELLS \
+# -rss_use_importance- -rss_object_based_sampling- -rss_directional_sampling+ \
+# -view_cells_filter_max_size=1 -preprocessor_stats=$PREFIX-r-directional-based-b3.log \
+# -preprocessor_histogram_file=$PREFIX-r-directional-based-b3.hlog
+
+# $COMMAND -scene_filename=$SCENE -view_cells_filename=$VIEWCELLS \
+# -rss_use_importance- -rss_object_based_sampling- -rss_directional_sampling- \
+# -view_cells_filter_max_size=1 -preprocessor_stats=$PREFIX-r-spatial-based-bb3.log \
+# -preprocessor_histogram_file=$PREFIX-r-spatial-based-bb3.hlog
+
 
 $COMMAND -scene_filename=$SCENE -view_cells_filename=$VIEWCELLS \
--rss_use_importance- -rss_object_based_sampling- -rss_directional_sampling- \
--view_cells_filter_max_size=1 -preprocessor_stats=$PREFIX-r-spatial-based-bb3.log \
--preprocessor_histogram_file=$PREFIX-r-spatial-based-bb3.hlog
+ -rss_use_importance+ -rss_use_rss_tree- -view_cells_filter_max_size=1 \
+ -preprocessor_stats=$PREFIX-i-mixed-b1.log \
+ -preprocessor_histogram_file=$PREFIX-i-mixed-b1.hlog
 
-
-