Changeset 991 for GTP/trunk/Lib/Vis/Preprocessing/src/RenderSampler.cpp

Timestamp:

05/29/06 18:54:02 (18 years ago)

Author:

mattausch

Message:

 

File:

• GTP/trunk/Lib/Vis/Preprocessing/src/RenderSampler.cpp (modified) (2 diffs)

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

@@ -9 +9 @@
 {
   environment->GetIntValue("RenderSampler.samples", mSamples);
-  cout<<"mspamples"<<mSamples<<endl;
+  cout << "number of render samples: " << mSamples << endl;
 }
 
@@ -15 +15 @@
 RenderSampler::ComputeVisibility()
 {
+        long startTime = GetTime();
+        
+        int histoMaxVal = 0;
+        int histoIntervals = 0;
+        
+    environment->GetIntValue("Preprocessor.histogram.maxValue", histoMaxVal);
+        environment->GetIntValue("Preprocessor.histogram.intervals", histoIntervals);
+
+        const int intervals = histoIntervals;
+
+        cout << "starting sampling of render cost ... ";
+
+        vector<RenderCostSample> samples;
   
-  cout<<"HERE I WAS!\n";
+        if (renderer)
+        {cout << "here18 " << mSamples << endl;
+                renderer->SampleRenderCost(mSamples, samples);
+        }
 
-  vector<RenderCostSample> samples;
-  
-  if (renderer)
-        renderer->SampleRenderCost(
-                                                           mSamples,
-                                                           samples
-                                                           );
+        cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
 
 
-  // compute histogram from the samples
-  int bins = 100;
-  int maxPvs = 0;
+        //-- Evaluate properties
+        
 
-  vector<int> histogram(bins);
+        //-- compute histogram from the samples
+        int avgPvs = 0;
+        int maxPvs = 0;
+
+        vector<int> histogram(intervals);
   
-  int i;
-  for (i = 0; i < bins; i++)
-        histogram[i] = 0;
+        int i;
+
+        /// initialise histogram
+        for (i = 0; i < intervals; ++ i)
+        {
+                histogram[i] = 0;
+        }
+
+        
+
+        for (i = 0; i < mSamples; ++ i) 
+        {
+                if (samples[i].mVisibleObjects > maxPvs)
+                {
+                        maxPvs = samples[i].mVisibleObjects;
+                }
+
+                avgPvs += samples[i].mVisibleObjects;
+        }
+
+        // sometimes need need to unifiy maximum pvs to compare with other method's histograms
+        // => choose histoMaxPvs accordingly (higher than all pvsss)
+        const int maxVal = max(histoMaxVal, maxPvs);
+        
+        for (i = 0; i < mSamples; ++ i) 
+        {
+                const int bin = (samples[i].mVisibleObjects * intervals) / maxVal;
+
+                ++ histogram[bin];
+        }
+
+
+        //-- output the histogram
+
+        const string filename("fromPointHisto.log");
+        std::ofstream outstream;
+        outstream.open(filename.c_str());
+
+
+
+        Debug << "****************************************" << endl;
+        Debug << "From point queries: " << endl;
+
+        for (i = 0; i < intervals; ++ i) 
+        {
+                outstream << "#Pass\n" << i << endl;
+                outstream << "#Pvs\n" << histogram[i] << endl;
+                //cout << histogram[i] << endl;
+        }
+
+        outstream.close();
+
+        avgPvs /= mSamples;
+                
+        Debug << "max pvs: " << maxPvs << endl;
+        Debug << "avg pvs: " << avgPvs << endl;
   
-  for (i = 0; i < mSamples; i++) {
-        if (samples[i].mVisibleObjects > maxPvs)
-          maxPvs = samples[i].mVisibleObjects;
-  }
-  
-  for (i = 0; i < mSamples; i++) {
-        int bin = (samples[i].mVisibleObjects*bins)/maxPvs;
-        histogram[bin]++;
-  }
-
-  // output the histogram
-  for (i = 0; i < bins; i++) {
-        cout<<histogram[i]<<endl;
-  }
-
-  
-  return true;
+        return true;
 }
 
+
+
 }