Changeset 470

Timestamp:

12/19/05 02:50:17 (18 years ago)

Author:

mattausch

Message:

 

Location:

trunk/VUT/GtpVisibilityPreprocessor/src

Files:

• ViewCell.h (modified) (1 diff)
• ViewCellsManager.cpp (modified) (4 diffs)
• ViewCellsManager.h (modified) (3 diffs)
• VspKdTree.cpp (modified) (1 diff)

trunk/VUT/GtpVisibilityPreprocessor/src/ViewCell.h

@@ -84 +84 @@
 typedef HierarchyViewCell<VspKdLeaf *> VspKdViewCell;
 
-/*class BspViewCell: public ViewCell
-{
-public:
-        BspViewCell(): mBspLeaves(0) {}
-        BspViewCell(Mesh *mesh): 
-                ViewCell(mesh), mBspLeaves(0) {}
 
-        /// Leaves of the hierarchy which are part of this view cell.
-        std::vector<BspLeaf *> mBspLeaves;
-};
-*/
-/*class VspKdViewCell: public ViewCell
-{
-public:
-        VspKdViewCell(): mLeaves(0) {}
-        VspKdViewCell(Mesh *mesh): 
-                ViewCell(mesh), mLeaves(0) {}
-
-        /// Leaves of the hierarchy which are part of this view cell.
-        std::vector<VspKdLeaf *> mLeaves;
-};
+/** Statistics for a view cell partition.
 */
 class ViewCellsStatistics: public StatisticsBase

trunk/VUT/GtpVisibilityPreprocessor/src/ViewCellsManager.cpp

@@ -17 +17 @@
 mConstructionSamples(0),
 mPostProcessSamples(0),
-mVisualizationSamples(0)
+mVisualizationSamples(0),
+mTotalAreaValid(false),
+mTotalArea(0.0f)
 {
         // post processing stuff
@@ -277 +279 @@
 }
 
+float ViewCellsManager::GetVolume(ViewCell *viewCell) const
+{
+        return viewCell->GetVolume();
+}
+
+
+
+float ViewCellsManager::GetArea(ViewCell *viewCell) const
+{
+        return 0.0f;
+}
+
+
+
+float ViewCellsManager::GetTotalArea()
+{
+        // if already computed
+        if (mTotalAreaValid)
+                return mTotalArea;
+
+        mTotalArea = 0;
+        ViewCellContainer::const_iterator it, it_end = mViewCells.end();
+
+        for (it = mViewCells.begin(); it != it_end; ++ it)
+        mTotalArea += GetArea(*it);
+        
+        mTotalAreaValid = true;
+
+        return mTotalArea;
+}
+
 /**********************************************************************/
 /*                   BspViewCellsManager implementation               */
@@ -349 +382 @@
 }
 
-
-float BspViewCellsManager::GetProbability(ViewCell *viewCell) const
+float BspViewCellsManager::GetArea(ViewCell *viewCell) const
 {
         PolygonContainer geom;
@@ -358 +390 @@
         
         const float area = Polygon3::GetArea(geom);
-        const float accArea = mBspTree->GetBoundingBox().SurfaceArea();
-
         CLEAR_CONTAINER(geom);
 
-        return area / accArea;
-}
-
+        return area;
+}
+
+
+float BspViewCellsManager::GetProbability(ViewCell *viewCell) const
+{
+        PolygonContainer geom;
+
+        // compute view cell area
+        mBspTree->ConstructGeometry(dynamic_cast<BspViewCell *>(viewCell), geom);
+        
+        const float area = Polygon3::GetArea(geom);
+        const float viewspaceArea = GetTotalArea();// mBspTree->GetBoundingBox().SurfaceArea();
+
+        CLEAR_CONTAINER(geom);
+
+        return area / viewspaceArea;
+}
 
 float BspViewCellsManager::GetRendercost(ViewCell *viewCell, float objRendercost) const

trunk/VUT/GtpVisibilityPreprocessor/src/ViewCellsManager.h

@@ -189 +189 @@
                                   VssRayContainer &savedRays) const;
 
+  /** Returns total area of view cells.
+  */
+  float GetTotalArea();
+
+  /** Returns area of one view cell.
+  */
+  float GetArea(ViewCell *viewCell) const;
+
+  /** Returns volume of view cells.
+  */
+  float GetVolume(ViewCell *viewCell) const;
+
 protected:
                 
@@ -209 +221 @@
         int mMinPvs;
         int mMaxPvs;
+
+        float mTotalAreaValid;
+        float mTotalArea;
 };
 
@@ -248 +263 @@
         float GetProbability(ViewCell *viewCell) const;
         float GetRendercost(ViewCell *viewCell, float objRendercost) const;
+
+        float GetArea(ViewCell *viewCell) const;
 
 protected:

trunk/VUT/GtpVisibilityPreprocessor/src/VspKdTree.cpp

@@ -2163 +2163 @@
 
         //Debug << mMinViewCells << " " << mMaxCostRatio << endl;
-
         // use priority queue to merge leaves
         while (!mergeQueue.empty() &&