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Assets/Scripts/TerrainGeneration/TerrainGenerator.cs

@@ -117,6 +117,7 @@ public class TerrainGenerator : MonoBehaviour
 
             foreach (var thread in generationThreads)
             {
+                // Wait for all threads to finish.
                 if (thread != null && thread.IsAlive)
                 {
                     busy = true;
@@ -130,6 +131,10 @@ public class TerrainGenerator : MonoBehaviour
         {
             if (genThread != null)
             {
+                // Apply generated terrain, one at a time.
+                // This ensures that we don't cause a lag
+                // spike by applying 9 terrains at the same
+                // time.
                 ApplyGeneratedTerrain(genThread);
                 yield return new WaitForEndOfFrame();
             }