Changeset 1109 for GTP/trunk/Lib/Vis/Preprocessing/src

Timestamp:

07/10/06 17:59:24 (18 years ago)

Author:

mattausch

Message:

erronous version using kd viewcell pvss

Location:

GTP/trunk/Lib/Vis/Preprocessing/src

Files:

• KdTree.h (modified) (1 diff)
• VspOspTree.cpp (modified) (16 diffs)
• VspOspTree.h (modified) (5 diffs)

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

@@ -201 +201 @@
   /** PVS consisting of visible KdTree nodes */
   KdPvs mKdPvs;
-        
+
+  /// pvs of view cells seeing this node.
+  // ViewCellPvs mViewCellPvs;
+
   /** pointer to view cell.
   */

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

@@ -232 +232 @@
 
 
-void VspInterior::SetupChildLinks(VspNode *b, VspNode *f) 
-{
-    mBack = b;
-    mFront = f;
+void VspInterior::SetupChildLinks(VspNode *front, VspNode *back) 
+{
+    mBack = back;
+    mFront = front;
 }
 
@@ -551 +551 @@
         {
                 RayInfoContainer::const_iterator it, it_end = tData.mRays->end();
+
                 for (it = tData.mRays->begin(); it != it_end; ++ it)
                 {
@@ -564 +565 @@
 
         mVspStats.contributingSamples += conSamp;
-        mVspStats.sampleContributions +=(int) sampCon;
+        mVspStats.sampleContributions += (int)sampCon;
 
         // finally evaluate statistics for this leaf
@@ -638 +639 @@
         {
                 //-- create new view cell
-                CreateViewCell(tData);
+                //CreateViewCell(tData);
         
                 //-- store additional info
@@ -677 +678 @@
         splitCandidate.SetPriority(priority);
         splitCandidate.mMaxCostMisses = success ? splitCandidate.mParentData.mMaxCostMisses : splitCandidate.mParentData.mMaxCostMisses + 1;
-
         //Debug << "p: " << tData.mNode << " depth: " << tData.mDepth << endl;
 }
@@ -703 +703 @@
                           *backData.mRays);
 
+        
+        //Debug << "f: " << frontData.mRays->size() << " b: " << backData.mRays->size() << "d: " << tData.mRays->size() << endl;
+        //-- compute pvs
+        frontData.mPvs = ComputePvsSize(*frontData.mRays);
+        backData.mPvs = ComputePvsSize(*backData.mRays);
+
+        // split front and back node geometry and compute area
+        tData.mBoundingBox.Split(splitPlane.mAxis, splitPlane.mPosition, 
+                                                         frontData.mBoundingBox, backData.mBoundingBox);
+
+
+        frontData.mProbability = frontData.mBoundingBox.GetVolume();
+        backData.mProbability = tData.mProbability - frontData.mProbability;
+
+        
+    ///////////////////////////////////////////
+        // subdivide further
+
+        // store maximal and minimal depth
+        if (tData.mDepth > mVspStats.maxDepth)
+        {
+                Debug << "max depth increases to " << tData.mDepth << " at " << mVspStats.Leaves() << " leaves" << endl;
+                mVspStats.maxDepth = tData.mDepth;
+        }
+
+        // two more leaves
+        mVspStats.nodes += 2;
+    
+        VspInterior *interior = new VspInterior(splitPlane);
+
+#ifdef _DEBUG
+        Debug << interior << endl;
+#endif
+
+
+        //-- create front and back leaf
+
+        VspInterior *parent = leaf->GetParent();
+
+        // replace a link from node's parent
+        if (parent)
+        {
+                parent->ReplaceChildLink(leaf, interior);
+                interior->SetParent(parent);
+        }
+        else // new root
+        {
+                mRoot = interior;
+        }
+
+        VspLeaf *frontLeaf = new VspLeaf(interior);
+        VspLeaf *backLeaf = new VspLeaf(interior);
+
+        // and setup child links
+        interior->SetupChildLinks(frontLeaf, backLeaf);
+        
+        // add bounding box
+        interior->SetBoundingBox(tData.mBoundingBox);
+
+        // set front and back leaf
+        frontData.mNode = frontLeaf;
+        backData.mNode = backLeaf;
+
+        // explicitely create front and back view cell
+        CreateViewCell(frontData);
+        CreateViewCell(backData);
+
         // TODO: 
         // create front and back view cell
@@ -708 +775 @@
         // add front and back view cell to "Potentially Visbilie View Cells" 
         // of the objects in front and back pvs
-
-        //Debug << "f: " << frontData.mRays->size() << " b: " << backData.mRays->size() << "d: " << tData.mRays->size() << endl;
-        //-- compute pvs
-        frontData.mPvs = ComputePvsSize(*frontData.mRays);
-        backData.mPvs = ComputePvsSize(*backData.mRays);
-
-        // split front and back node geometry and compute area
-        tData.mBoundingBox.Split(splitPlane.mAxis, splitPlane.mPosition, 
-                                                         frontData.mBoundingBox, backData.mBoundingBox);
-
-
-        frontData.mProbability = frontData.mBoundingBox.GetVolume();
-        backData.mProbability = tData.mProbability - frontData.mProbability;
-
-        
-    ///////////////////////////////////////////
-        // subdivide further
-
-        // store maximal and minimal depth
-        if (tData.mDepth > mVspStats.maxDepth)
-        {
-                Debug << "max depth increases to " << tData.mDepth << " at " << mVspStats.Leaves() << " leaves" << endl;
-                mVspStats.maxDepth = tData.mDepth;
-        }
-
-        mVspStats.nodes += 2;
-
-    
-        VspInterior *interior = new VspInterior(splitPlane);
-
-#ifdef _DEBUG
-        Debug << interior << endl;
-#endif
-
-
-        //-- create front and back leaf
-
-        VspInterior *parent = leaf->GetParent();
-
-        // replace a link from node's parent
-        if (parent)
-        {
-                parent->ReplaceChildLink(leaf, interior);
-                interior->SetParent(parent);
-        }
-        else // new root
-        {
-                mRoot = interior;
-        }
-
-        // and setup child links
-        interior->SetupChildLinks(new VspLeaf(interior), new VspLeaf(interior));
-        
-        // add bounding box
-        interior->SetBoundingBox(tData.mBoundingBox);
-
-        // set front and back leaf
-        frontData.mNode = interior->GetFront();
-        backData.mNode = interior->GetBack();
+        RemoveParentViewCellReferences(tData.mNode->mViewCell);
+        AddViewCellReferences(frontLeaf->mViewCell);
+        AddViewCellReferences(backLeaf->mViewCell);
+
 
         interior->mTimeStamp = mTimeStamp ++;
@@ -774 +786 @@
 
 
-
-void VspTree::ProcessViewCellObjects(ViewCell *parent, ViewCell *front, ViewCell *back) const
-{
-        if (parent)
-        {
-                // remove the parents from the object pvss
-                ObjectPvsMap::const_iterator oit, oit_end = parent->GetPvs().mEntries.end();
-
-                for (oit = parent->GetPvs().mEntries.begin(); oit != oit_end; ++ oit)
-                {
-                        Intersectable *object = (*oit).first;
-                        // HACK: make sure that the view cell is removed from the pvs
-                        const float high_contri = 9999999;
-                        object->mViewCellPvs.RemoveSample(parent, high_contri);
-                }
-        }
-
-        if (front)
-        {
-                // Add front view cell to the object pvsss
-                ObjectPvsMap::const_iterator oit, oit_end = front->GetPvs().mEntries.end();
-
-                for (oit = front->GetPvs().mEntries.begin(); oit != oit_end; ++ oit)
-                {
-                        Intersectable *object = (*oit).first;
-                        object->mViewCellPvs.AddSample(front, 1);
-                }
-        }
-
-        if (back)
-        {
-                // Add back view cell to the object pvsss
-                ObjectPvsMap::const_iterator oit, oit_end = back->GetPvs().mEntries.end();
-
-                for (oit = back->GetPvs().mEntries.begin(); oit != oit_end; ++ oit)
-                {
-                        Intersectable *object = (*oit).first;
-                        object->mViewCellPvs.AddSample(back, 1);
+/*void VspTree::RemoveParentViewCellReferences(VspTraversalData &parentData)
+{
+        RayInfoContainer::const_iterator it, it_end = parentData.mRays->end();
+
+        KdLeaf::NewMail();
+        Intersectable::NewMail();
+
+        ViewCell *vc = parentData.mNode->mViewCell;
+
+        const float highestContri = 1e25;
+
+        // add contributions from samples to the PVS
+        for (it = parentData.mRays->begin(); it != it_end; ++ it)
+        {
+                VssRay *ray = (*it).mRay;
+
+                Intersectable *obj = ray->mTerminationObject;
+
+                if (obj && !obj->Mailed())
+                {
+                        obj->Mail();
+                        // reduce object reference count by one
+                        -- obj->mViewCellPvs;
+
+                        set<KdLeaf *>::const_iterator kit, kit_end = obj->mKdLeaves.end();
+
+                        for (kit = obj->mKdLeaves.begin(); kit != kit_end; ++ kit)
+                        {
+                                KdLeaf *leaf = *kit;
+ 
+                                if (!leaf->Mailed())
+                                {
+                                        leaf->Mail();
+                                        leaf->mViewCellPvs.RemoveSample(vc, highestContri);
+                                }
+                        }
+                }
+
+                Intersectable *obj = ray->mOriginObject;
+
+                if (obj && !obj->Mailed())
+                {
+                        obj->Mail();
+                        // reduce object reference count by one
+                        -- obj->mViewCellPvs;
+
+                        set<KdLeaf *>::const_iterator kit, kit_end = obj->mKdLeaves.end();
+
+                        for (kit = obj->mKdLeaves.begin(); kit != kit_end; ++ kit)
+                        {
+                                KdLeaf *leaf = *kit;
+
+                                if (!leaf->Mailed())
+                                {
+                                        leaf->Mail();
+                                        leaf->mViewCellPvs.RemoveSample(vc, highestContri);
+                                }
+                        }
+                }
+        }
+}*/
+
+
+void VspTree::RemoveParentViewCellReferences(ViewCell *parent) const
+{
+        KdLeaf::NewMail();
+
+        // remove the parents from the object pvss
+        ObjectPvsMap::const_iterator oit, oit_end = parent->GetPvs().mEntries.end();
+
+        for (oit = parent->GetPvs().mEntries.begin(); oit != oit_end; ++ oit)
+        {
+                Intersectable *object = (*oit).first;
+                // HACK: make sure that the view cell is removed from the pvs
+                const float high_contri = 9999999;
+
+                // remove reference count of view cells
+                -- object->mViewCellPvs;
+
+                set<KdLeaf *>::const_iterator kit, kit_end = obj->mKdLeaves.end();
+
+                for (kit = obj->mKdLeaves.begin(); kit != kit_end; ++ kit)
+                {
+                        KdLeaf *leaf = *kit;
+
+                        if (!leaf->Mailed())
+                        {
+                                leaf->mViewCellPvs.RemoveSample(parent, high_contri);
+                                leaf->Mail();
+                        }
+                }
+        }
+}
+
+
+void VspTree::AddViewCellReferences(ViewCell *vc) const
+{
+        KdLeaf::NewMail();
+
+        // Add front view cell to the object pvsss
+        ObjectPvsMap::const_iterator oit, oit_end = front->GetPvs().mEntries.end();
+
+        for (oit = front->GetPvs().mEntries.begin(); oit != oit_end; ++ oit)
+        {
+                Intersectable *object = (*oit).first;
+
+                // increase reference count of view cells
+                ++ object->mViewCellPvs;
+
+                set<KdLeaf *>::const_iterator kit, kit_end = obj->mKdLeaves.end();
+
+                for (kit = obj->mKdLeaves.begin(); kit != kit_end; ++ kit)
+                {
+                        KdLeaf *leaf = *kit;
+
+                        if (!leaf->Mailed())
+                        {
+                                leaf->mViewCellPvs.AddSample(front, 1);
+                                leaf->Mail();
+                        }
                 }
         }
@@ -838 +932 @@
                 float contribution;
 
-                if (ray->mTerminationObject) 
-                {
-                        if (vc->AddPvsSample(ray->mTerminationObject, ray->mPdf, contribution))
+                Intersectable *obj = ray->mTerminationObject;
+
+                if (obj) 
+                {
+                        if (vc->AddPvsSample(obj, ray->mPdf, contribution))
                         {
                                 madeContrib = true;
@@ -847 +943 @@
                         sc += contribution;
                 }
-          
-                if (ray->mOriginObject) 
-                {
-                        if (vc->AddPvsSample(ray->mOriginObject, ray->mPdf, contribution))
+
+                Intersectable *obj = ray->mOriginObject;
+
+                if (obj) 
+                {
+                        if (vc->AddPvsSample(obj, ray->mPdf, contribution))
                         {
                                 madeContrib = true;
@@ -857 +955 @@
                         sc += contribution;
                 }
-         
-                sampleContributions += sc;
+
 
                 if (madeContrib)
@@ -2772 +2869 @@
                 // delete old leaf node
                 DEL_PTR(tData.mNode);
+                DEL_PTR(tData.mNode->mViewCell);
         }
 
@@ -3427 +3525 @@
 
         // add first candidate for view space partition
-        mVspTree.mRoot = new VspLeaf();
+        VspLeaf *leaf = new VspLeaf();
+        mVspTree.mRoot = leaf;
         const float prop = mVspTree.mBoundingBox.GetVolume();
 
         // first vsp traversal data
-        VspTree::VspTraversalData vData(mVspTree.mRoot,
+        VspTree::VspTraversalData vData(leaf,
                                                                         0,
                                                                         &rays,
@@ -3452 +3551 @@
 
         // add first candidate for view space partition
-        KdLeaf *leaf = new KdLeaf(NULL, 0);
-        leaf->mObjects = objects;
-
-        mOspTree.mRoot = leaf;
+        KdLeaf *kdleaf = new KdLeaf(NULL, 0);
+        kdleaf->mObjects = objects;
+
+        mOspTree.mRoot = kdleaf;
         
 
         // first osp traversal data
-        OspTree::OspTraversalData oData(leaf,
+        OspTree::OspTraversalData oData(kdleaf,
                                                                         0,
                                                                         pvsSize,
@@ -3466 +3565 @@
 
                 
-        mOspTree.ProcessLeafObjects(leaf, NULL);
+        mOspTree.ProcessLeafObjects(kdleaf, NULL);
 
         // compute first split candidate
@@ -3529 +3628 @@
 
         // add first candidate for view space partition
-        mVspTree.mRoot = new VspLeaf();
+        VspLeaf *vspleaf = new VspLeaf();
+
+        mVspTree.mRoot = vspleaf;
         const float prop = mVspTree.mBoundingBox.GetVolume();
 
         // first vsp traversal data
-        VspTree::VspTraversalData vData(mVspTree.mRoot,
+        VspTree::VspTraversalData vData(vspleaf,
                                                                         0,
                                                                         rays,

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

@@ -367 +367 @@
         */
         void ReplaceChildLink(VspNode *oldChild, VspNode *newChild);
+
         /** Replace front and back child.
         */
-        void SetupChildLinks(VspNode *b, VspNode *f);
+        void SetupChildLinks(VspNode *front, VspNode *back);
 
         friend ostream &operator<<(ostream &s, const VspInterior &A)
@@ -467 +468 @@
         public:
                 /// the current node
-                VspNode *mNode;
+                VspLeaf *mNode;
                 /// current depth
                 int mDepth;
@@ -502 +503 @@
                 {}
                 
-                VspTraversalData(VspNode *node, 
+                VspTraversalData(VspLeaf *node, 
                                                  const int depth, 
                                                  RayInfoContainer *rays,
@@ -732 +733 @@
         ViewCellsTree *mViewCellsTree;
 
+        /** Remove the references of the parent view cell from the kd nodes associated with
+                the objects.
+        */
+        void RemoveParentViewCellReferences(ViewCell *parent);
+        /** Adds references to the view cell to the kd nodes associated with the objects.
+        */
+        void AddViewCellReferences(ViewCell *vc) const;
+
 
 protected:
@@ -751 +760 @@
   
                 SortableEntry() {}
-                SortableEntry(const int t, const float v, VssRay *r):type(t),
-                                          value(v), ray(r) 
+                SortableEntry(const int t, const float v, VssRay *r): 
+                type(t), value(v), ray(r) 
                 {
                 }