Solve problem with too big texture tiles requested.

modules/globebrowsing/globes/renderableglobe.cpp

@@ -96,7 +96,7 @@ namespace openspace {
             colorTextureDictionary.getValue("FilePath", path);
             std::shared_ptr<TileProvider> colorTextureProvider =
                 std::shared_ptr<TileProvider>(new TileProvider(
-                    path, 5000, 1024));
+                    path, 5000, 512));
             _tileProviderManager->addColorTexture(name, colorTextureProvider);
         }
 
@@ -113,7 +113,7 @@ namespace openspace {
             heightMapDictionary.getValue("FilePath", path);
             std::shared_ptr<TileProvider> heightMapProvider =
                 std::shared_ptr<TileProvider>(new TileProvider(
-                    path, 5000, 256));
+                    path, 5000, 128));
             _tileProviderManager->addHeightMap(name, heightMapProvider);
         }
 

modules/globebrowsing/other/gdaldataconverter.inl

@@ -52,6 +52,7 @@ namespace openspace {
         int nRasters = dataSet->GetRasterCount();
 
         ghoul_assert(nRasters > 0, "Bad dataset. Contains no rasterband.");
+        ghoul_assert(chunkIndex.level > 0, "Level of chunk index must be bigger than 0.");
 
         GDALRasterBand* firstBand = dataSet->GetRasterBand(1);
 

modules/globebrowsing/other/tileprovider.cpp

@@ -153,7 +153,7 @@ namespace openspace {
                 break;
             }
 
-            if (!chunkIndex.hasParent()) {
+            if (chunkIndex.level <= 1) {
                 tex = getDefaultTexture();
                 break;
             }