diff --git a/BlueMapCommon/src/main/java/de/bluecolored/bluemap/common/BlueMapService.java b/BlueMapCommon/src/main/java/de/bluecolored/bluemap/common/BlueMapService.java
index 836f4c02..572a6cc9 100644
--- a/BlueMapCommon/src/main/java/de/bluecolored/bluemap/common/BlueMapService.java
+++ b/BlueMapCommon/src/main/java/de/bluecolored/bluemap/common/BlueMapService.java
@@ -40,6 +40,7 @@ import de.bluecolored.bluemap.core.MinecraftVersion;
 import de.bluecolored.bluemap.core.debug.StateDumper;
 import de.bluecolored.bluemap.core.logger.Logger;
 import de.bluecolored.bluemap.core.map.BmMap;
+import de.bluecolored.bluemap.core.resources.datapack.DataPack;
 import de.bluecolored.bluemap.core.resources.resourcepack.ResourcePack;
 import de.bluecolored.bluemap.core.storage.Storage;
 import de.bluecolored.bluemap.core.util.FileHelper;
@@ -188,6 +189,31 @@ public class BlueMapService implements Closeable {
             return;
         }
 
+        // if there is no dimension configured, we assume world-folder is actually the dimension-folder and convert (backwards compatibility)
+        if (dimension == null) {
+            worldFolder = worldFolder.normalize();
+            if (worldFolder.endsWith("DIM-1")) {
+                worldFolder = worldFolder.getParent();
+                dimension = DataPack.DIMENSION_THE_NETHER;
+            } else if (worldFolder.endsWith("DIM1")) {
+                worldFolder = worldFolder.getParent();
+                dimension = DataPack.DIMENSION_THE_END;
+            } else if (
+                    worldFolder.getNameCount() > 3 &&
+                    worldFolder.getName(worldFolder.getNameCount() - 3).equals(Path.of("dimensions"))
+            ) {
+                String namespace = worldFolder.getName(worldFolder.getNameCount() - 2).toString();
+                String value = worldFolder.getName(worldFolder.getNameCount() - 1).toString();
+                worldFolder = worldFolder.subpath(0, worldFolder.getNameCount() - 3);
+                dimension = new Key(namespace, value);
+            } else {
+                dimension = DataPack.DIMENSION_OVERWORLD;
+            }
+
+            Logger.global.logInfo("The map '" + name + "' has no dimension configured.\n" +
+                    "Assuming world: '" + worldFolder + "' and dimension: '" + dimension + "'.");
+        }
+
         if (!Files.isDirectory(worldFolder)) {
             throw new ConfigurationException(
                     "'" + worldFolder.toAbsolutePath().normalize() + "' does not exist or is no directory!\n" +
diff --git a/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/map/hires/HiresModelRenderer.java b/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/map/hires/HiresModelRenderer.java
index f9677ea4..fbf0707b 100644
--- a/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/map/hires/HiresModelRenderer.java
+++ b/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/map/hires/HiresModelRenderer.java
@@ -69,7 +69,7 @@ public class HiresModelRenderer {
             for (z = min.getZ(); z <= max.getZ(); z++){
 
                 maxHeight = 0;
-                topBlockLight = 0f;
+                topBlockLight = 0;
 
                 columnColor.set(0, 0, 0, 0, true);
 
diff --git a/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/map/hires/blockmodel/LiquidModelBuilder.java b/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/map/hires/blockmodel/LiquidModelBuilder.java
index c9929aa3..fa827088 100644
--- a/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/map/hires/blockmodel/LiquidModelBuilder.java
+++ b/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/map/hires/blockmodel/LiquidModelBuilder.java
@@ -110,7 +110,7 @@ public class LiquidModelBuilder {
         // filter out blocks that are in a "cave" that should not be rendered
         if (
                 this.block.isRemoveIfCave() &&
-                (renderSettings.isCaveDetectionUsesBlockLight() ? Math.max(blockLight, sunLight) : sunLight) == 0f
+                (renderSettings.isCaveDetectionUsesBlockLight() ? Math.max(blockLight, sunLight) : sunLight) == 0
         ) return;
 
         int level = blockState.getLiquidLevel();
diff --git a/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/map/hires/blockmodel/ResourceModelBuilder.java b/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/map/hires/blockmodel/ResourceModelBuilder.java
index 8396d051..58965c5b 100644
--- a/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/map/hires/blockmodel/ResourceModelBuilder.java
+++ b/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/map/hires/blockmodel/ResourceModelBuilder.java
@@ -198,7 +198,7 @@ public class ResourceModelBuilder {
         // filter out faces that are in a "cave" that should not be rendered
         if (
                 block.isRemoveIfCave() &&
-                (renderSettings.isCaveDetectionUsesBlockLight() ? Math.max(blockLight, sunLight) : sunLight) == 0f
+                (renderSettings.isCaveDetectionUsesBlockLight() ? Math.max(blockLight, sunLight) : sunLight) == 0
         ) return;
 
         // initialize the faces