Data populated at bootstrap.

src/engine/db/handlers/dbBuildingHandler.java

@@ -28,7 +28,6 @@ import java.sql.SQLException;
 import java.time.LocalDateTime;
 import java.time.ZoneId;
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.HashMap;
 import java.util.concurrent.ConcurrentHashMap;
 
@@ -550,6 +549,29 @@ public class dbBuildingHandler extends dbHandlerBase {
         return false;
     }
 
+    public void POPULATE_RENDER_LOOKUP() {
+
+        try (Connection connection = DbManager.getConnection();
+             PreparedStatement preparedStatement = connection.prepareStatement("SELECT * FROM `static_structure_renders`")) {
+
+            ResultSet rs = preparedStatement.executeQuery();
+
+            while (rs.next()) {
+
+                int structureID = rs.getInt("structureID");
+                int renderID = rs.getInt("renderID");
+
+                if (!BuildingManager._render_lookup.containsKey(structureID))
+                    BuildingManager._render_lookup.put(structureID, new ArrayList<>());
+
+                BuildingManager._render_lookup.get(structureID).add(renderID);
+            }
+
+        } catch (SQLException e) {
+            Logger.error(e);
+        }
+    }
+
     public void LOAD_MESH_HULLS() {
 
         int recordsRead = 0;

src/engine/server/world/WorldServer.java

@@ -403,6 +403,9 @@ public class WorldServer {
 		Logger.info("Loading building slot/stuck location data.");
 		BuildingLocation.loadBuildingLocations();
 
+		Logger.info("Populating structure to render lookup.");
+		DbManager.BuildingQueries.POPULATE_RENDER_LOOKUP();
+
 		Logger.info("Loading mesh hulls.");
 		DbManager.BuildingQueries.LOAD_MESH_HULLS();