Fix noiseReduction calculations

Author: Vort

TileMap.cs

@@ -50,21 +50,21 @@ private void Load(int tileIndexX, int tileIndexY)
             long tileIndex = ((long)tileIndexY << 32) + tileIndexX;
             if (!tiles.ContainsKey(tileIndex))
             {
-                bool fileExists = true;
-                string[] fileList = null;
+                string foundFileName = null;
                 string fileNameBase = tileIndexX + "_" + tileIndexY + "_" + Zoom;
-                if (Directory.Exists(cacheDir))
+                if (Config.Data.enableCaching)
                 {
-                    fileList = Directory.GetFiles(cacheDir, fileNameBase + ".*");
-                    if (fileList.Length == 0)
-                        fileExists = false;
+                    if (Directory.Exists(cacheDir))
+                    {
+                        string[] fileList = Directory.GetFiles(cacheDir, fileNameBase + ".*");
+                        if (fileList.Length != 0)
+                            foundFileName = fileList[0];
+                    }
                 }
-                else
-                    fileExists = false;
 
                 byte[] data;
-                if (Config.Data.enableCaching && fileExists)
-                    data = File.ReadAllBytes(fileList[0]);
+                if (foundFileName != null)
+                    data = File.ReadAllBytes(foundFileName);
                 else
                 {
                     data = imageSource.GetTile(tileIndexX, tileIndexY, Zoom);

Tracer.cs

@@ -200,7 +200,8 @@ public Tracer()
                     }
                 });
 
-                int integrateSamples = (int)(riverWidthPx * Config.Data.noiseReduction);
+                int integrateSamples = (int)(riverWidthPx *
+                    Config.Data.resamplingFactor * Config.Data.noiseReduction);
                 if (integrateSamples % 2 == 0)
                     integrateSamples++;
                 anglesGrid = Integrate(anglesGrid, integrateSamples);