Changeset 1047 for GTP/trunk/Lib/Vis/Preprocessing

Timestamp:

06/21/06 18:26:17 (19 years ago)

Author:

mattausch

Message:

fixed vsp part of vsp osp tree

Location:

GTP/trunk/Lib/Vis/Preprocessing/src

Files:

• AxisAlignedBox3.cpp (modified) (1 diff)
• Plane3.h (modified) (1 diff)
• ViewCellsManager.cpp (modified) (27 diffs)
• ViewCellsManager.h (modified) (7 diffs)
• VrmlExporter.cpp (modified) (7 diffs)
• VspBspTree.cpp (modified) (4 diffs)
• VspOspTree.cpp (modified) (13 diffs)
• VspOspTree.h (modified) (2 diffs)

GTP/trunk/Lib/Vis/Preprocessing/src/AxisAlignedBox3.cpp

@@ -2123 +2123 @@
 }
 
+
 void AxisAlignedBox3::Split(const int axis, 
                                                         const float value, 
-                                                        AxisAlignedBox3 &left, 
-                                                        AxisAlignedBox3 &right) const
+                                                        AxisAlignedBox3 &front, 
+                                                        AxisAlignedBox3 &back) const
 {
         if ( (value >= mMin[axis]) && (value <= mMax[axis]) )
         {
-                left.mMin = mMin; left.mMax = mMax;
-                right.mMin = mMin; right.mMax = mMax;
-
-                left.mMax[axis] = value;
-                right.mMin[axis] = value;
-
+                front.mMin = mMin; front.mMax = mMax;
+                back.mMin = mMin; back.mMax = mMax;
+
+                back.mMax[axis] = value;
+                front.mMin[axis] = value;
         }
 }
-}
+
+
+}

GTP/trunk/Lib/Vis/Preprocessing/src/Plane3.h

@@ -77 +77 @@
   
 
+/** A definition for an axis aligned plane.
+*/
+struct AxisAlignedPlane
+{
+public:
+        AxisAlignedPlane(){}
+        AxisAlignedPlane(const int axis, const float position):
+          mAxis(axis), mPosition(position)
+          {
+          }
+        Plane3 GetPlane() const
+        {
+                Vector3 normal(0,0,0); normal[mAxis] = 1;
+                Vector3 point(0,0,0); point[mAxis] = mPosition;
+
+        return Plane3(normal, point);
+        }
+
+        /// the split axis: one of 0=x, 1=y, 2=z
+        int mAxis;
+        /// the absolute position of the split axis
+        float mPosition;
+};
+
+
 }
 

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

@@ -1747 +1747 @@
         Environment::GetSingleton()->GetIntValue("ViewCells.Visualization.clipPlaneAxis", axis);
 
-        Vector3 normal(0,0,0);
-        normal[axis] = 1;
-
-        mClipPlane = Plane3(normal, point);
+        mClipPlane = AxisAlignedPlane(axis, point[axis]);
 }
 
@@ -2428 +2425 @@
 }
 
+
+
 /**********************************************************************/
 /*                 BspViewCellsManager implementation                 */
@@ -2927 +2926 @@
 void BspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
                                                                                                  ViewCell *vc,
-                                                                                                 const Plane3 *clipPlane) const
+                                                                                                 const AxisAlignedPlane *clipPlane) const
 {
         // export mesh if available
@@ -2938 +2937 @@
         if (clipPlane)
         {
+                const Plane3 plane = clipPlane->GetPlane();
+
                 ViewCellContainer leaves;
                 mViewCellsTree->CollectLeaves(vc, leaves);
@@ -2953 +2954 @@
 
                         const float eps = 0.00000001f;
-                        const int cf = geom.Side(*clipPlane, eps);
+                        const int cf = geom.Side(plane, eps);
 
                         if (cf == -1)
@@ -2963 +2964 @@
                                 geom.SplitGeometry(front,
                                                                    back,
-                                                                   *clipPlane,
+                                                                   plane,
                                                                    mViewSpaceBox, 
                                                                    eps);
@@ -3067 +3068 @@
 
 
-bool BspViewCellsManager::ExportViewCells(const string filename, const bool exportPvs, const ObjectContainer &objects)
+bool BspViewCellsManager::ExportViewCells(const string filename, 
+                                                                                  const bool exportPvs, 
+                                                                                  const ObjectContainer &objects)
 {
 #if STILL_HAS_TODO
@@ -3472 +3475 @@
 void KdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
                                                                                                 ViewCell *vc,
-                                                                                                const Plane3 *clipPlane) const
+                                                                                                const AxisAlignedPlane *clipPlane) const
 {
         ViewCellContainer leaves;
@@ -4154 +4157 @@
         //-- export view cells
         if (1) 
-        {       // hack pvs
+        {       
+                // hack pvs
                 const int savedColorCode = mColorCode;
                 mColorCode = 1;
@@ -4178 +4182 @@
 
                         // export rays
-                        if (1 && mExportRays)
+                        if (0 && mExportRays)
                         {
                                 exporter->ExportRays(visRays, RgbColor(0, 1, 0));
@@ -4359 +4363 @@
                 {
                         // output rays stored with the view cells during subdivision
-                        if (0)
+                        if (1)
                         {
                                 VssRayContainer vcRays;
@@ -4394 +4398 @@
                                 }
 
+                                Debug << "here233 " << (int)vcRays.size() << endl;
+
                                 //-- export rays piercing this view cell
                                 exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
@@ -4399 +4405 @@
                 
                         // associate new rays with output view cell
-                        if (1)
+                        if (0)
                         {
                                 VssRayContainer vcRays;
@@ -4580 +4586 @@
 void VspBspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
                                                     ViewCell *vc,
-                                                                                                        const Plane3 *clipPlane) const
+                                                                                                        const AxisAlignedPlane *clipPlane) const
 {
         if (clipPlane)
         {
+                const Plane3 plane = clipPlane->GetPlane();
+
                 ViewCellContainer leaves;
                 mViewCellsTree->CollectLeaves(vc, leaves);
@@ -4599 +4607 @@
 
                         const float eps = 0.00000001f;
-                        const int cf = geom.Side(*clipPlane, eps);
+                        const int cf = geom.Side(plane, eps);
 
                         if (cf == -1)
@@ -4609 +4617 @@
                                 geom.SplitGeometry(front,
                                                                    back,
-                                                                   *clipPlane,
+                                                                   plane,
                                                                    mViewSpaceBox, 
                                                                    eps);
@@ -4780 +4788 @@
 
 /**************************************************************************/
-/*                   VspBspViewCellsManager implementation                */
+/*                   VspOspViewCellsManager implementation                */
 /**************************************************************************/
 
@@ -5136 +5144 @@
         {
                 viewPoint = mViewSpaceBox.GetRandomPoint();
+
                 if (mVspTree->ViewPointValid(viewPoint))
                 {
@@ -5149 +5158 @@
 void VspOspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
                                                                                                         ViewCell *vc,
-                                                                                                        const Plane3 *clipPlane) const
+                                                                                                        const AxisAlignedPlane *clipPlane) const
 {
         ViewCellContainer leaves;
@@ -5156 +5165 @@
         ViewCellContainer::const_iterator it, it_end = leaves.end();
 
+        Plane3 plane;
+        
+        if (clipPlane)
+                plane = clipPlane->GetPlane();
+
         for (it = leaves.begin(); it != it_end; ++ it)
         {
@@ -5162 +5176 @@
 
                 const AxisAlignedBox3 box = mVspTree->GetBBox(vspVc->mLeaf);
-
-                if (!clipPlane || !box.Side(*clipPlane))
+                
+                if (clipPlane)
+                {
+                        if (box.Side(plane) == -1)
+                                exporter->ExportBox(box);
+                        else if (box.Side(plane) == 0)
+                        {
+                                AxisAlignedBox3 fbox, bbox;
+
+                                box.Split(clipPlane->mAxis, clipPlane->mPosition, fbox, bbox);
+
+                                exporter->ExportBox(bbox);
+                        }
+                }
+                else
+                {
                         exporter->ExportBox(box);
+                }
         }
 }
@@ -5191 +5220 @@
         //-- export view cells
         if (1) 
-        {       // hack pvs
+        {       
+                // hack pvs
                 const int savedColorCode = mColorCode;
-                mColorCode = 1;
+                mColorCode = 0;
         
                 Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
@@ -5215 +5245 @@
 
                         // export rays
-                        if (1 && mExportRays)
+                        if (0 && mExportRays)
                         {
                                 exporter->ExportRays(visRays, RgbColor(0, 1, 0));
@@ -5292 +5322 @@
                 {
                         // output rays stored with the view cells during subdivision
-                        if (0)
+                        if (1)
                         {
                                 VssRayContainer vcRays;
@@ -5298 +5328 @@
 
                                 raysOut = min((int)rays.size(), 100);
+
+                                Debug  << "here12 " << raysOut << endl;
 
                                 // collect intial view cells
@@ -5307 +5339 @@
                                 for (vit = leaves.begin(); vit != vit_end; ++ vit)
                                 {
-                                        BspLeaf *vcLeaf = dynamic_cast<BspViewCell *>(*vit)->mLeaf;
+                                        VspLeaf *vcLeaf = dynamic_cast<VspViewCell *>(*vit)->mLeaf;
                                 
                                         VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
@@ -5332 +5364 @@
                 
                         // associate new rays with output view cell
-                        if (1)
+                        if (0)
                         {
                                 VssRayContainer vcRays;

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

@@ -36 +36 @@
 class VspNode;
 class HierarchyManager;
+struct AxisAlignedPlane;
 
 struct BspRay;
@@ -349 +350 @@
         virtual void ExportViewCellGeometry(Exporter *exporter, 
                                                                                 ViewCell *vc,
-                                                                                const Plane3 *clipPlane = NULL) const = 0;
+                                                                                const AxisAlignedPlane *clipPlane = NULL) const = 0;
 
         /** Brings the view cells into their final state, computes meshes and volume.
@@ -574 +575 @@
                 
         //Environment *environment;
-        Plane3 mClipPlane;
+        AxisAlignedPlane mClipPlane;
 
         bool mUseClipPlaneForViz;
@@ -704 +705 @@
         void ExportViewCellGeometry(Exporter *exporter, 
                                                                 ViewCell *vc, 
-                                                                const Plane3 *clipPlane = NULL) const;
+                                                                const AxisAlignedPlane *clipPlane = NULL) const;
         
         void CollectMergeCandidates(const VssRayContainer &rays, 
@@ -788 +789 @@
         void ExportViewCellGeometry(Exporter *exporter, 
                                                                 ViewCell *vc,
-                                                                const Plane3 *clipPlane = NULL) const;
+                                                                const AxisAlignedPlane *clipPlane = NULL) const;
 
         void CollectMergeCandidates(const VssRayContainer &rays, 
@@ -860 +861 @@
         void ExportViewCellGeometry(Exporter *exporter, 
                                                                 ViewCell *vc,
-                                                                const Plane3 *clipPlane = NULL) const;
+                                                                const AxisAlignedPlane *clipPlane = NULL) const;
 
         //float GetVolume(ViewCell *viewCell) const;
@@ -1001 +1002 @@
         void ExportViewCellGeometry(Exporter *exporter, 
                                                                 ViewCell *vc,
-                                                                const Plane3 *clipPlane = NULL) const;
+                                                                const AxisAlignedPlane *clipPlane = NULL) const;
 
         int ComputeBoxIntersections(const AxisAlignedBox3 &box, ViewCellContainer &viewCells) const;

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

@@ -34 +34 @@
                                                           const RgbColor &color)
 {
+        if (rays.empty())
+                return false;
   RayContainer::const_iterator ri = rays.begin();
 
@@ -48 +50 @@
   {
           stream << index << " " << index + 1 << " -1\n";
-          index+=2;
+          index += 2;
   }
   
@@ -68 +70 @@
           else
           {
-                  if ((*ri)->intersections.size()==0)
+                  if ((*ri)->intersections.empty())
                           b = (*ri)->GetLoc() + length*(*ri)->GetDir();
                   else
@@ -81 +83 @@
   stream << "}" << endl;
   stream << "}" << endl;
-  //stream << "}" << endl;
-
+  
   return true;
 }
@@ -90 +91 @@
                                                           const RgbColor &color)
 {
-  VssRayContainer::const_iterator ri = rays.begin();
+
+        if (rays.empty())
+                return false;
 
   stream << "Shape {" << endl;
@@ -98 +101 @@
   stream << "}" << endl; // end material
   stream << "}" << endl; // end appearance
-  
+  Debug << "here8" << endl;
   stream << "geometry IndexedLineSet { coordIndex [" << endl;
 
   int index = 0;
-  for (; ri != rays.end(); ri++) 
+  VssRayContainer::const_iterator ri = rays.begin();
+
+  for (; ri != rays.end(); ++ ri) 
   {
           stream << index << " " << index + 1 << " -1\n";
-          index +=2 ;
+          index += 2 ;
   }
   
@@ -112 +117 @@
   stream << "coord Coordinate { point [" << endl;
   
-  ri = rays.begin();
-  for (; ri != rays.end(); ri++) {
-    const Vector3 a = (*ri)->GetOrigin();
-        const Vector3 b = (*ri)->mTerminationObject ? (*ri)->GetTermination() : a + 1000 * Normalize((*ri)->GetDir());
-        //const Vector3 b = (*ri)->GetTermination(); // matt: change back!!
-
-    stream<<a.x<<" "<<a.y<<" "<<a.z<<" ,";
-        stream<<b.x<<" "<<b.y<<" "<<b.z<<" ,\n";
+  for (ri = rays.begin(); ri != rays.end(); ++ ri) 
+  {
+          const Vector3 a = (*ri)->GetOrigin();
+          const Vector3 b = (*ri)->mTerminationObject ? (*ri)->GetTermination() : a + 1000 * Normalize((*ri)->GetDir());
+          //const Vector3 b = (*ri)->GetTermination(); // matt: change back!!
+
+          stream << a.x << " " << a.y << " " << a.z << " ,";
+          stream << b.x << " " << b.y << " " << b.z << " ,\n";
   }
+
   stream << "]" << endl;
   stream << "}" << endl;

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

@@ -848 +848 @@
 
                 mBspStats.contributingSamples += conSamp;
-                mBspStats.sampleContributions +=(int) sampCon;
+                mBspStats.sampleContributions += (int)sampCon;
 
                 //-- store additional info
@@ -1224 +1224 @@
                         sc += contribution;
                 }
-          
-          sampleContributions += sc;
-
-          if (madeContrib)
-                  ++ contributingSamples;
-                
-          //leaf->mVssRays.push_back(ray);
+                
+                sampleContributions += sc;
+                
+                if (madeContrib)
+                        ++ contributingSamples;
+                
+                if (0) leaf->mVssRays.push_back(new VssRay(*ray));
         }
 }
@@ -1573 +1573 @@
                                         
                                         // create back geometry from box
-                                        // NOTE: the geometry is saved when possible
+                                        // NOTE: the geometry is returned from the function so we
+                                        // don't have to recompute it when possible
                                         pos = box.Max(); pos[axis] = nPosition[axis];
                                         AxisAlignedBox3 bBox(box.Min(), pos);
@@ -2472 +2473 @@
                         extp = splitPlane.FindIntersection(ray.GetLoc(), extp, &t);
                         maxt *= t;
-
-                } else // reached leaf => intersection with view cell
+                } 
+                else // reached leaf => intersection with view cell
                 {
                         BspLeaf *leaf = dynamic_cast<BspLeaf *>(node);

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

@@ -771 +771 @@
                         sc += contribution;
                 }
-          
-          sampleContributions += sc;
-
-          if (madeContrib)
-                  ++ contributingSamples;
+         
+                sampleContributions += sc;
+
+                if (madeContrib)
+                        ++ contributingSamples;
                 
-          //leaf->mVssRays.push_back(ray);
-        }
-}
-
-
-void VspTree::SortSplitCandidates(const RayInfoContainer &rays, 
-                                                                         const int axis, 
-                                                                         float minBand, 
-                                                                         float maxBand)
+                if (1) leaf->mVssRays.push_back(new VssRay(*ray));
+        }
+}
+
+
+void VspTree::SortSplitCandidates(const RayInfoContainer &rays,
+                                                                  const int axis, 
+                                                                  float minBand, 
+                                                                  float maxBand)
 {
         mSplitCandidates->clear();
 
         int requestedSize = 2 * (int)(rays.size());
+
         // creates a sorted split candidates array
         if (mSplitCandidates->capacity() > 500000 &&
@@ -863 +864 @@
 
         
-        // if no border can be found, take mid split
+        // if no good split can be found, take mid split
         position = minBox + 0.5f * sizeBox;
         
@@ -952 +953 @@
                                 }
                 }
-
                 
                 
@@ -978 +978 @@
         
         // -- compute cost
+
         const int lowerPvsLimit = mViewCellsManager->GetMinPvsSize();
         const int upperPvsLimit = mViewCellsManager->GetMaxPvsSize();
 
         const float pOverall = sizeBox;
-
         const float pBack = position - minBox;
         const float pFront = maxBox - position;
-        
+
+        /*const float pOverall = box.GetVolume();
+
+        AxisAlignedBox3 bbox;
+        AxisAlignedBox3 fbox;
+
+        box.Split(axis, position, bbox, fbox);
+
+        const float pBack = fbox.GetVolume();
+        const float pFront = bbox.GetVolume();*/
+
         const float penaltyOld = EvalPvsPenalty(pvsSize, lowerPvsLimit, upperPvsLimit);
     const float penaltyFront = EvalPvsPenalty(pvsFront, lowerPvsLimit, upperPvsLimit);
         const float penaltyBack = EvalPvsPenalty(pvsBack, lowerPvsLimit, upperPvsLimit);
         
-        const float oldRenderCost = penaltyOld * pOverall;
+        const float oldRenderCost = penaltyOld * pOverall + Limits::Small;
         const float newRenderCost = penaltyFront * pFront + penaltyBack * pBack;
 
         if (splitPlaneFound)
         {
-                ratio = newRenderCost / (oldRenderCost + Limits::Small);
+                ratio = newRenderCost / oldRenderCost;
         }
         //if (axis != 1)
@@ -1021 +1031 @@
         int bestAxis = -1;
 
+        //mOnlyDrivingAxis = true;
+
         // if we use some kind of specialised fixed axis
     const bool useSpecialAxis = 
                 mOnlyDrivingAxis || mCirculatingAxis;
-
-        int parentAxis = 0;
-        VspNode *parent = tData.mNode->GetParent();
-
-        if (parent)
-                parentAxis = dynamic_cast<VspInterior *>(parent)->GetAxis();
-
+        Debug << "data: " << tData.mBoundingBox << " pvs " << tData.mPvs << endl;
         if (mCirculatingAxis)
+        {
+                int parentAxis = 0;
+                VspNode *parent = tData.mNode->GetParent();
+
+                if (parent)
+                        parentAxis = dynamic_cast<VspInterior *>(parent)->GetAxis();
+
                 sAxis = (parentAxis + 1) % 3;
+        }
         else if (mOnlyDrivingAxis)
+        {
                 sAxis = box.Size().DrivingAxis();
-
-
-        for (int axis = 0; axis < 3 ; ++ axis)
+        }
+        //sAxis = 2;
+        for (int axis = 0; axis < 3; ++ axis)
         {
                 if (!useSpecialAxis || (axis == sAxis))
@@ -1070 +1085 @@
                         else if (nCostRatio[axis] < nCostRatio[bestAxis])
                         {
+                                Debug << "old: " << nCostRatio[bestAxis] << " axis: " << bestAxis << endl;
                                 bestAxis = axis;
+                                
+                                Debug << "new: " << nCostRatio[bestAxis] << " axis: " << bestAxis << endl;
                         } 
                 }
         }
 
+
         //-- assign values
+        
         plane.mAxis = bestAxis;
+        // split plane position
+    plane.mPosition = nPosition[bestAxis];
+
         pFront = nProbFront[bestAxis];
         pBack = nProbBack[bestAxis];
 
-        //-- split plane position
-    plane.mPosition = nPosition[bestAxis];
-
+
+        Debug << "val: " << nCostRatio[bestAxis] << " axis: " << bestAxis << endl;
         return nCostRatio[bestAxis];
 }
@@ -1098 +1120 @@
                                                                           const VspTraversalData &data) const
 {
-#if 1
-        return -data.mDepth;
+#if 0
+        return (float)-data.mDepth;
 #endif
         float pvsFront = 0;
@@ -1752 +1774 @@
                                 if (extp[axis] <= position)
                                 {
-                                        node = in->GetFront();
+                                        node = in->GetBack();
                                         // cases N1,N2,N3,P5,Z2,Z3
                                         continue;
@@ -1758 +1780 @@
                                 {
                                         // case N4
-                                        node = in->GetFront();
-                                        farChild = in->GetBack();
+                                        node = in->GetBack();
+                                        farChild = in->GetFront();
                                 }
                         }
@@ -1766 +1788 @@
                                 if (position <= extp[axis])
                                 {
-                                        node = in->GetBack();
+                                        node = in->GetFront();
                                         // cases P1,P2,P3,N5,Z1
                                         continue;
@@ -1772 +1794 @@
                                 else
                                 {
-                                        node = in->GetBack();
-                                        farChild = in->GetFront();
+                                        node = in->GetFront();
+                                        farChild = in->GetBack();
                                         // case P4
                                 }
@@ -2086 +2108 @@
                 // get classification and receive new t
                 //-- test if start point behind or in front of plane
-                const int side = plane.ComputeRayIntersection(bRay, t);
+                const int side = bRay.ComputeRayIntersection(plane.mAxis, plane.mPosition, t);
+                        
+
 #if 1
                 if (side == 0)
@@ -2157 +2181 @@
         AxisAlignedBox3 box(parent->GetBoundingBox());
 
-        if (parent->GetBack() == node)
-                box.SetMin(parent->GetAxis(), parent->GetPosition());
-        else
-                box.SetMax(parent->GetAxis(), parent->GetPosition());
+        if (parent->GetFront() == node)
+      box.SetMin(parent->GetAxis(), parent->GetPosition());
+    else
+      box.SetMax(parent->GetAxis(), parent->GetPosition());
 
         return box;

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

@@ -42 +42 @@
                 return c1->GetPriority() < c2->GetPriority();
         }
-};
-
-/** A definition for an axis aligned plane.
-*/
-struct AxisAlignedPlane
-{
-public:
-
-        /** Computes intersection of this plane with the ray segment.
-        */
-        int ComputeRayIntersection(const RayInfo &rayData, float &t) const
-        {
-                return rayData.ComputeRayIntersection(mAxis, mPosition, t);
-        }
-
-        /// the split axis: one of 0=x, 1=y, 2=z
-        int mAxis;
-        /// the absolute position of the split axis
-        float mPosition;
 };
 
@@ -410 +391 @@
         void SetBoundingBox(const AxisAlignedBox3 &box);
 
+        /** Computes intersection of this plane with the ray segment.
+        */
+        int ComputeRayIntersection(const RayInfo &rayData, float &t) const
+        {
+                return rayData.ComputeRayIntersection(mPlane.mAxis, mPlane.mPosition, t);
+        }
+
+
 protected: